CT scanners · CT PRO SPEED family

GE Healthcare CT Pro Speed: troubleshooting and error codes

The ServiceForge knowledge base holds 59 documented symptoms for the GE Healthcare CT Pro Speed, with 121 ranked causes, 95 diagnostic checks with test points and expected values, and 751 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Power-on self-test fails during DISP Phase 1

DISP or DISP2 board test fails; LEDs display error code and testing halts.

Ranked causes

1. ACRTC initialize test failure (DISP test 1) (unknown)
2. ACRTC pattern RAM test failure (DISP test 2) (unknown)
3. Interrupt test failure on DISP (DISP test 3) (unknown)
4. OVL plane control register write test failure (DISP test 4) (unknown)
5. DISP control register test failure (DISP test 5) (unknown)
6. Interrupt mask control register test failure (DISP test 6) (unknown)
7. VSYNC interrupt test failure (DISP test 7) (unknown)
8. OVL plane memory test failure (DISP test 8) (unknown)
9. ACRTC DMA test failure (DISP test 9) (unknown)

9 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Power-on self-test fails during IPU2 test

IPU2 board test fails; LED displays error code $41–$4F and testing halts.

Ranked causes

1. IPU2 register access test failure (unknown)
2. IPU2 extended mode access test failure (unknown)
3. IPU2 command area access test failure (unknown)
4. IPU2 CPU mode access test failure (unknown)
5. IPU2 CPU extended mode access test failure (unknown)
6. IPU2 DMA test failure (unknown)
7. IPU2 vector area fetch test failure (unknown)
8. IPU2 i860 register access test failure (unknown)
9. IPU2 driver area access test failure (unknown)

9 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Power-on self-test fails during CPW Phase 1

CPW LEDs display error code and testing halts; no further tests proceed. Error code remains on LEDs.

Ranked causes

1. SRAM write/read/verify test failure (CPW test 1) (unknown)
2. Bus error during ROM test (CPW test 2) (unknown)
3. ROM checksum failure (CPW test 3) (unknown)
4. Interrupt handler write/read/verify test failure (CPW test 4) (unknown)
5. Control/status register failure (CPW test 5) (unknown)
6. DMAC register failure (CPW test 6) (unknown)
7. Bus error on IPU2 mode (CPW test 7) (unknown)
8. CPW-DRAM write/read/verify test failure (CPW test 8) (unknown)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Power-on self-test fails during CPW Phase 2

CPW Phase 2 test fails; LED displays $1F and testing halts. Phase 2 includes advanced tests.

Ranked causes

1. FDC register read/write test failure (CPW test 7) (unknown)
2. SCSIC register read/write test failure (CPW test 8) (unknown)
3. SRAM write/read/verify test 2 failure (CPW test 9) (unknown)
4. CPW-DRAM write/read/verify test 2 failure (CPW test 10) (unknown)
5. Calendar read test failure (CPW test 11) (unknown)
6. DMA CPW-DRAM test failure (CPW test 12) (unknown)
7. DMA IPU2 mode test failure (CPW test 13) (unknown)
8. Hard disk read test failure (CPW test 14) (unknown)

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

System fails during power-up sequence

LED displays error code in hexadecimal during hardware self-test or boot-up phases; system halts and does not reach ready state

Ranked causes

1. FMP1 ASSY hardware failure (common)
2. MRX ASSY test failure (occasional)
3. FMP2 or FMP3 ASSY, PACK, or hard disk error (common)
4. Communication error between FMP1 and DMP4 (occasional)
5. Hard disk or floppy disk failure (occasional)
6. Operating system file not found or corrupted (occasional)
7. Memory allocation or layout error (rare)

First check

Monitor LED status on FMP1 board during power-up

Test point: FMP1 LED display (8-bit hexadecimal)
Expected: 11H through 1BH during normal FMP1 test; 90H at boot end
Tools: Visual inspection

4 more checks with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Operator console fails during power-up

CPW fails power-on sequence due to operating system failure; LED status indicates error condition

Ranked causes

1. Bus error from accessing nonexistent memory or executing inadequate instruction (common)
2. Address error from word reference to odd address (occasional)
3. Exception from incorrect instruction or corrupted memory (occasional)
4. Abnormal termination due to OS-related task abort (occasional)
5. Abnormal operation system (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

System power-up fails

Display processor fails during power-up self-test sequence; LED status indicates test failure; system does not reach boot-up phase

Ranked causes

1. DMP2 assembly hardware failure (common)
2. OVL2 assembly or CBRD failure (common)
3. IFB2 assembly or CBRD failure (common)
4. FCP3B assembly failure (main data memory) (occasional)
5. FCP2A or DMP2 assembly communication failure (occasional)

First check

Verify DMP2 ASSY power-up self-test execution

Test point: DMP2 LED status
Expected: LEDs illuminate in sequence per TABLE 2-1

2 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Gantry does not rotate during initialization

Gantry fails to rotate during power-on initialization sequence; ERRG LED on or alternating ERRG/LOOPG LEDs

Ranked causes

1. Safety interlock activated during initialization (common)
2. Gantry servo error or motor failure (occasional)
3. Gantry over-speed condition (occasional)
4. Azimuth encoder pulse detection failure (occasional)

First check

Check manual/system mode switch position during initialization

Test point: TGP manual switch
Expected: Switch in SYS position for automatic initialization

3 more checks with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

ETC board fatal error condition caution

ETC board encountered fatal hardware or software error during initialization; LED status indicates error code and current condition

Ranked causes

1. ROM level does not match program level (rare)
2. CPU communication or write error (rare)
3. Memory allocation or file read failure (rare)

First check

Read ETC LED error code from exception status table

Test point: ETC board LEDs
Expected: LED pattern matches one of Table 6-3 error codes
Tools: Visual inspection, ETC exception LED status reference

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Gantry Processor RAM error on power-on

ERRG, LOOPG, and REQG LEDs illuminate on power-on or reset; gantry processor hangs up

Ranked causes

1. Internal RAM failure (PD78310 at U6R, addresses FE00-FEDF) (rare)
2. External RAM failure (HM6716P at U7M, addresses C000-C7FF) (rare)
3. Dual Port RAM failure (7130 at U6L, addresses D000-D1FF, D3C0-D3FB) (rare)

First check

Observe LED status on power-on or reset

Test point: ERRG, LOOPG, REQG LEDs
Expected: LOOPG LED flashes on and off if test passes

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Management Processor RAM error on power-on

ERRM, LOOPM, REQM, and MNLM LEDs illuminate on power-on or reset; management processor hangs up

Ranked causes

1. Internal RAM failure (PD78310 at U3E, addresses FE00-FEDF) (rare)
2. External RAM failure (HM6716P at U3A, addresses C000-C7FF) (rare)
3. Dual Port RAM failure (7130 at U6L, U3L) (rare)

First check

Observe LED status on power-on or reset

Test point: ERRM, LOOPM, REQM, MNLM LEDs
Expected: LOOPM LED flashes on and off if test passes

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Motor does not rotate high voltage

Servo motor will not turn despite power applied

Ranked causes

1. No voltage command signal (common)
2. RSGO signal issue or fuse failure (occasional)
3. Servo Amp malfunction (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

OS loading timeout or corruption

System reaches boot-up phase but fails during OS load or initialization; display shows error code during OS startup sequence

Ranked causes

1. Corrupted OS transfer program or hard disk error (common)
2. Corrupted operating system or read error (common)
3. Memory allocation error or improper memory size (occasional)

First check

Check crash save area for stored error information

Test point: System memory crash save area
Expected: Error information accessible for diagnosis

1 more check with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Table Processor RAM error on power-on

ERRT, LOOPT, REQT, and MNLT LEDs illuminate on power-on or reset; table processor hangs up

Ranked causes

1. Internal RAM failure (PD78310 at U3R, addresses FE00-FEDF) (rare)
2. External RAM failure (HM6176P at U3M, addresses C000-C7FF) (rare)
3. Dual Port RAM failure (IDT7130 at U3L) (rare)

First check

Observe LED status on power-on or reset

Test point: ERRT, LOOPT, REQT, MNLT LEDs
Expected: LOOPT LED flashes on and off if test passes

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Filter center channel alignment high voltage

Adjustment of bow-tie filter position to align its projection on the detector. System measures filter center channel from air and filter scan files.

Ranked causes

1. Filter not centered on detector (common)
2. Filter center channel offset from iso-center channel (common)

First check

Verify correct filter center channel value matches detector type

Test point: System display after calculation
Expected: 406.75 Ch. for Xe Type Detector; 458.75 Ch. for SS Type Detector, +0.3 Ch. during measurement; ±0.02 Ch. after adjustment

1 more check with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

KV Board test fails or shows errors high voltage

High-voltage board diagnostic test returns non-zero error count; inverter output test incomplete or invalid

Ranked causes

1. Inverter outputs not properly short-circuited during test (common)
2. Incorrect jumper setting on KV Board (occasional)

First check

Verify inverter outputs are short-circuited

Test point: HV tank terminals P1 and P2
Expected: Cable connected between P1 and P2 on both anode and cathode tanks

2 more checks with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Rotor Board test error during S11 or S12

Service test S11 or S12 performs rotor board diagnostics. Test result displays hexadecimal codes indicating logical signal changes and errors. At first stage, filament operation check may generate related error codes.

Ranked causes

1. Filament operation error during autotest (occasional)
2. Rotor board circuit fault (unknown)

First check

Run service test S11

Test point: GENERATOR TEST menu
Expected: Number of errors occurred = 00

1 more check with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

Calibration: Gravity sag amplitude measurement high voltage

Measurement of gravitational sag in the X-ray tube assembly at different gantry rotation positions. Part of alignment verification procedures.

Ranked causes

1. Gravity sag in tube assembly during rotation (unknown)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Initialize air reference data radiation

Initialize air reference data collection after cold load, X-Ray generator calibration, detector replacement, or system calibration

Ranked causes

1. System requires baseline reference data after major maintenance or replacement (occasional)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: ISO center channel alignment high voltage

X-ray tube position adjustment to center the detector channel receiving the projection of a calibration pin. System calculates required tube shift from air and pin scan files.

Ranked causes

1. X-ray tube not centered on detector (common)

First check

Verify correct iso-center channel value for detector type

Test point: System display after calculation
Expected: 406.75 Ch. for Xe Type Detector; 458.75 Ch. for SS Type Detector, ±0.02 Ch.

1 more check with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Phantom centering

Repositioning of calibration phantom to center it on the scan plane. System determines required phantom shift from air and phantom scan files.

Ranked causes

1. Phantom position offset from scan plane center (common)

First check

Verify phantom position offset values

Test point: System display after calculation
Expected: MOVE DOWN e.ee MM (±0.15) and MOVE RIGHT f.ff MM (±0.15), ±0.15 mm

1 more check with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: X-Ray tube warm-up radiation

Warm-up routine required after power ON, before first scan, after 3 hours idle, and before phantom calibration to update calibration files

Ranked causes

1. X-Ray tube requires thermal stabilization (common)

First check

Execute warm-up scans #1 through #4 without data collection

Test point: X-Ray tube output
Expected: Scans complete without errors at specified kV and mA settings

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

CPU Board self-test failure

Generator powered-on or reset; CPU Board self-test performs register pattern read/write, EPROM checksum, RAM pattern read/write, DUART test (DTACK, TIMER, internal loops, interrupt), and EEPROM checksum. Failure generates error code to Operator Console.

Ranked causes

1. CPU Board internal circuit failure (unknown)

First check

Verify power-on self-test execution

Test point: Operator Console
Expected: Autotest completes; error codes displayed only if failure

Cradle movement at specified speeds not functioning correctly

Cradle fails to move at expected speeds in helical scan modes (Tests 014-019) or speed settings are not responding correctly to In/Out/Fast button commands.

Ranked causes

1. Cradle motor or drive control malfunction (common)

First check

Set T6 of TABLE PROCESSOR DIAG switch to ON position

Test point: T6 switch, TABLE PROCESSOR DIAG SWITCH
Expected: ON position

3 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Cradle position display incorrect or out of range

Gantry display shows cradle position value outside expected limits (0-3050 decimal, equivalent to 0-1525mm) or fails to display position in Test 000.

Ranked causes

1. Cradle position sensor/encoder malfunction (common)

First check

Set T6 of TABLE PROCESSOR DIAG switch to ON position

Test point: T6 switch, TABLE PROCESSOR DIAG SWITCH
Expected: ON position

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

DAS trigger pulses incorrect or aperture error detected

OGP Test Mode displays incorrect XG ERR or APERTURE ERR counts during TGP test mode (Test 2-2), indicating missed or extra trigger pulses to the data acquisition system.

Ranked causes

1. OGP board trigger detection circuit malfunction or GPLS2 signal loss (common)

First check

Set SW3 DIP switches for correct ROM version

Test point: SW3 DIP switches on OGP board
Expected: ROM 2121676: S3=OFF, S2=ON, S1=OFF; OR ROM 2107557/P9183ZP/P9183ZQ: S6=OFF, S1=OFF

4 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

ETC board power-on test execution

ETC board initializes and runs self-diagnostics during system power-up; LED status indicates test progress and results

Ranked causes

1. Normal power-up and initialization sequence (common)

First check

Set DIP switch SW8A configuration

Test point: ETC Assy S8A DIP switch bits B0, B1, B2, B3
Expected: B0='0', B1='0', B2='0' or '1' (offline), B3='0' or '1' (power-on test)

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

ETC ethernet address verification

Validates ethernet address data backup in ETC board internal battery; verifies manufactured date, serial number and ethernet address settings

Ranked causes

1. Ethernet data corrupted due to weak or depleted internal battery (occasional)

First check

Connect external terminal to ETC board CN4

Test point: ETC board connector CN4
Expected: Terminal display connected

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Gantry azimuth position incorrect or out of reference

Gantry display shows azimuth angle value outside expected range (-180° to +180° or equivalent 0-1462 decimal) in Test 400, or rotation home position not correctly identified.

Ranked causes

1. Gantry azimuth position sensor or home reference malfunction (common)

First check

Set G6 of GANTRY PROCESSOR DIAG switch to ON position

Test point: G6 switch, GANTRY PROCESSOR DIAG SWITCH
Expected: ON position

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Gantry Processor ROM error on power-on

ERRG and REQG LEDs illuminate after RAM check; gantry processor hangs up

Ranked causes

1. ROM data checksum failure (addresses 0-BFFF) (rare)

First check

Observe LED status after RAM check passes

Test point: ERRG, REQG LEDs
Expected: LOOPG LED blinks if ROM check passes

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Gantry rotation time measurement incorrect or encoder pulse count anomalous

Test 020 shows incorrect cradle encoder pulse count per gantry rotation (Home to Home), or Test 401 displays incorrect rotation time from Home position to Home position, indicating timing or encoder issues.

Ranked causes

1. Cradle encoder malfunction or counter circuit fault (common)

First check

Set appropriate DIAG switch ON (T6 for Test 020, G6 for Test 401)

Test point: T6 or G6 DIAG switch, TABLE/GANTRY PROCESSOR
Expected: Switch in ON position

3 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Invalid entry in Support Display menu

Software displays ** INVALID ENTRY message when unacceptable parameter is entered

Ranked causes

1. Parameter value outside acceptable range or invalid format (common)

First check

Enter parameter value in Support Display menu

Test point: Menu input field
Expected: Value accepted or ** INVALID ENTRY message displayed

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Invalid file name entered in FILE SELECTION

Software displays error when file name is entered incorrectly or file does not exist

Ranked causes

1. Incorrect file name spelling or non-existent file (common)

First check

Enter file name in FILE SELECTION menu

Test point: FILE SELECTION input field
Expected: File name accepted; file displays or error message appears

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Magnetic tape recovery from mis-initialization

Recover images from incorrectly initialized tape or images stored after mis-initialization

Ranked causes

1. Incorrectly initialized tape or images stored after mis-initialization (unknown)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Magnetic tape recovery from parity error

Recover MT images unable to be retrieved due to tape parity error or corrupted directory

Ranked causes

1. Corrupted MT directory (unknown)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Management Processor ROM error on power-on

ERRM, REQM, and MNLM LEDs illuminate after RAM check; management processor hangs up

Ranked causes

1. ROM data checksum failure (addresses 0-BFFF) (rare)

First check

Observe LED status after RAM check passes

Test point: ERRM, REQM, MNLM LEDs
Expected: LOOPM LED flashes on and off if ROM check passes

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

OD storage errors after unexpected shutdown

Recover optical disk information when errors ER-440, ER-441, or ER-442 appear after system power-off during OD operation

Ranked causes

1. System shutdown during OD operation corrupting OD information (occasional)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

OD study information recovery after power loss

Restore study information destroyed by power-down during image storage to optical disk (requires patient data re-entry)

Ranked causes

1. Power-down during image storage to optical disk destroying study information (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

OGP communication hardware error during data reception

ERRS and RINGS LEDs illuminate; OGP board cannot receive data from Management Processor via slip rings

Ranked causes

1. Slip ring connection failure or signal corruption during OGP reception (occasional)

First check

Inspect slip ring connectors and contacts

Test point: OGP slip ring connection
Expected: Contacts clean, connectors fully seated

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

OGP communication repeated NACK error

ERRS LED illuminates; OGP board receives NACK from Management Processor three times or transmits NACK

Ranked causes

1. Repeated negative acknowledgment during OGP-Management Processor communication (occasional)

First check

Power cycle system and re-run self-test

Test point: ERRS LED
Expected: ERRS LED off after power cycle

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

OGP communication timeout error

ERRS and RINGS LEDs illuminate; OGP board fails to receive ACK/NACK from Management Processor within timeout period

Ranked causes

1. Slip ring communication timeout during acknowledge handshake (occasional)

First check

Verify Management Processor is responding

Test point: Management Processor LEDs (ERRM, LOOPM, REQM, MNLM)
Expected: No error LEDs illuminated; LOOPM flashing

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

OGP Scan Processor lock-up on power-on

ERRS, LOOPS, REQS, RINGS, and TEST LEDs all illuminate during power-on; processor not responding to watchdog timer

Ranked causes

1. OGP Scan Processor hangs or infinite loop (except WDT test mode) (rare)

First check

Verify WDT test mode is not active

Test point: System configuration or service switch
Expected: WDT test mode disabled

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

OGP Scan Processor RAM error on power-on

ERRS and LOOPS LEDs illuminate on power-on or reset

Ranked causes

1. OGP board RAM failure (rare)

First check

Observe LED status during power-on self-test

Test point: ERRS, LOOPS LEDs
Expected: LEDs off if RAM test passes

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

OGP Scan Processor ROM error on power-on

ERRS LED illuminates after RAM check; OGP ROM data corruption detected

Ranked causes

1. OGP board ROM failure (rare)

First check

Observe ERRS LED status during power-on self-test

Test point: ERRS LED
Expected: ERRS LED off if ROM test passes

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Parameter values exceed specified range in Support Display

Software displays ** RANGE ERROR when entered parameters exceed acceptable data range

Ranked causes

1. MIN value greater than MAX value or values outside -1000000 to +1000000 range (occasional)

First check

Enter MIN and MAX values in RANGE menu

Test point: RANGE input fields
Expected: MIN < MAX; both within -1000000 to +1000000

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

PDU test fails or generates no 550/750 VDC output high voltage

Power distribution unit diagnostic test S51/S52 fails; no voltage output detected on rotor or supply rails

Ranked causes

1. PDU not outputting 550 or 750 VDC due to internal fault (unknown)

First check

Run PDU diagnostic test from host

Test point: Host terminal S51 or S52 command entry
Expected: Test begins; PDU generates 550 or 750 VDC output

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Retrieve crash save area information

Transfer processor crash save area containing program counter, status register, registers and LED status to floppy diskette for analysis

Ranked causes

1. Need to preserve crash diagnostic data (common)

First check

Initialize crash save diskette

Test point: Floppy disk drive
Expected: Diskette formatted per Appendix A

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Rotor Board test error during S14 or S16

Service test S14 or S16 performs rotor operation and control check with generator operating as in operation mode. Test monitors phases P1, P2, P3, P7 and checks for error codes generation during rotor operations.

Ranked causes

1. Rotor control or KV balance error during operation (unknown)

First check

Run service test S14

Test point: GENERATOR TEST menu; command ( begins rotor test
Expected: Number of errors occurred = 00; no error codes during phases P2, P3, P7

1 more check with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

Rotor Board test S17 execution

Service test S17 initiates rotor board test with specific diagnostics. Generator transitions through phases P0 and P1. Test completion exits service mode with SE0 and N commands.

Ranked causes

1. S17 test procedure not documented in provided text (unknown)

First check

Execute service test S17

Test point: GENERATOR TEST menu
Expected: Phase P1 reached; rotor operations complete; SE0 acknowledged

SCSI board diagnostic test failure

Test execution on SCSI board results in error condition indicated by status LEDs; test phase where error occurred is retained on LED display.

Ranked causes

1. Hardware failure in tested component during test phase (unknown)

First check

Observe TEST LED status during test execution

Test point: TEST LED on SCSI board
Expected: LED on during test execution, off after completion

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

System does not display version 5.01 after loading

After executing Custom Parameter Change mode, the CRT monitor does not show 'VER. 05.01' and logo on startup

Ranked causes

1. Software loading incomplete or Custom Parameter Change mode not executed (common)

First check

Verify system startup display

Test point: CRT monitor
Expected: 'VER. 05.01' and logo appear on screen

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

System error occurs during Support Display operation

Software displays ** ERROR XXXXXXXX (error code) and control shifts to Display Support or Maintenance menu

Ranked causes

1. Internal system or file access error (rare)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Table height display incorrect or out of range

Gantry display shows table height value outside expected limits (0010-1210 decimal, equivalent to -600mm to 0mm from ISO center) in Test 001.

Ranked causes

1. Table height sensor/encoder malfunction or mechanical limit exceeded (common)

First check

Set T6 of TABLE PROCESSOR DIAG switch to ON position

Test point: T6 switch, TABLE PROCESSOR DIAG SWITCH
Expected: ON position

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Table Processor ROM error on power-on

ERRT, REQT, and MNLT LEDs illuminate after RAM check; table processor hangs up

Ranked causes

1. ROM data checksum failure (addresses 0-BFFF) (rare)

First check

Observe LED status after RAM check passes

Test point: ERRT, REQT, MNLT LEDs
Expected: LOOPT LED blinks if ROM check passes

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Tilt angle display incorrect or out of range

Gantry display shows tilt angle value outside expected range or incorrect angle orientation in Test 002, with incorrect mapping of FWD/BWD positions.

Ranked causes

1. Tilt angle potentiometer sensor malfunction or calibration drift (common)

First check

Set T6 of TABLE PROCESSOR DIAG switch to ON position

Test point: T6 switch, TABLE PROCESSOR DIAG SWITCH
Expected: ON position

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Unable to select file in Support Display

Software refuses to accept menu selections other than FILE SELECTION until a valid file is selected

Ranked causes

1. No file selected or invalid file name entered (common)

First check

Attempt to select a menu option other than FILE SELECTION

Test point: Display Support menu
Expected: Error or no response; cursor remains at FILE SELECTION option

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Warm-up error detected

System reports WARM-UP ERROR when collected data falls outside specified range

Ranked causes

1. Collected data outside specified range (unknown)

First check

Verify last scan data collection

Test point: RAW DATA FILE
Expected: Data within specified range

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

X-ray generator anode or cathode side test incomplete radiation

Anode side test runs but cathode side test does not execute or is skipped; one side of x-ray tube assembly not tested

Ranked causes

1. PDU model P9180AB or P9180AF installed (cathode test skipped) (occasional)

First check

Identify PDU model number

Test point: PDU chassis or documentation
Expected: PDU model number noted (e.g., P9180AB, P9180AF, or other)

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X-ray spit detected during scan radiation

Scan test mode indicates X-ray tube spit occurred (XG ERR displays count > 0) during or after HV (high voltage) exposure, preventing planned scans from proceeding in multi-scan sequences.

Ranked causes

1. X-ray tube arcing or instability during exposure (occasional)

First check

Set SW3 DIP switches for Scan Test Mode per ROM version

Test point: SW3 DIP switches on OGP board
Expected: ROM 2121676: S3=ON, S2=ON, S1=OFF; OR ROM 2107557/P9183ZP/P9183ZQ: S5=OFF, S1=OFF

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Error codes

Code	Meaning	Trigger	Severity
`0001`	Task ID error	Ethernet task identifier invalid or not found	error
`0003`	Cannot keep memory	Memory allocation failed for Ethernet task	critical
`000A`	Time out	Ethernet operation timeout	error
`0020`	Component vector not assigned	Ethernet component function vector missing	error
`0032`	Task is waiting for event flag or semaphore	Task blocked on synchronization primitive	warning
`00XX0100`	Directive No. Remains Undecided	Directive number not resolved	error
`00XX0200`	Invalid Parameter Block Address	Parameter block address invalid	error
`00XX0300`	Invalid Direction Code	DMA direction invalid	error
`00XX0400`	Invalid Memory Address	Memory address out of range	error
`00XX0500`	Invalid Data Size	Data transfer size invalid	error
`00XX0600`	Invalid CPU Number	CPU index out of range	error
`00XX0700`	Channel Bus Error	Channel bus communication failed	error
`00XX0800`	Configuration Error	System configuration invalid	error
`00XX0900`	Operation Timing Error	Timing constraint violated	error
`00XX0A00`	Reserved	Reserved error code	unknown
`00XX0B00`	Address Error	Address invalid	error
`00XX0C00`	Address Error	Address invalid	error
`00XX0D00`	Address Error	Address invalid	error
`00XX0E00`	Address Error	Address invalid	error
`00XX0F00`	Bus Error	Bus communication error	error
`00XX1000`	Bus Error	Bus error detected	error
`00XX1100`	Bus Error	Bus transmission error	error
`00XX1200`	Bus Error	Bus protocol error	error
`00XX1300`	Count Error	Data count mismatch	error
`00XX1400`	Count Error	Count mismatch	error
`00XX1500`	Count Error	Count error	error
`00XX1600`	Count Error	Count fault	error
`00XX1700`	External Compulsory Stop	External stop signal received	warning
`00XX1800`	Software Compulsory Stop	Software stop command executed	warning
`00XX1900`	Time Out	DMA operation timeout	error
`00XXAA00`	Normal Completion	DMA operation completed successfully	info
`01`	There is no designated Study	GET/PUT operation without study	error
`01`	The designated Study was already registered	Study allocation operation	warning
`01`	Directive No. Error	Invalid directive number received	error
`01`	Initialize failure of PDC RAM (PDC context)	PDC RAM test fails during power-up	critical
`01`	Hardware self test does not exist in ROM	ROM checksum or integrity failure	critical
`01H`	Hardware self-test code not found in ROM or hardware does not exist	Power-up self-test initialization	error
`02`	The designated Study does not exist	Study access or deletion attempt	error
`02`	There is no specified Study. It is not deleted	Delete without study specification	warning
`02`	Odd Parameter Address	Parameter address is not aligned to even boundary	error
`03`	Invalid Request	Request does not match valid command format	error
`03`	The designated Image was already registered	Image allocation operation	warning
`03`	There was not enough in the specified Study	Delete with insufficient study data	warning
`04`	There is no specified Image. It is not deleted	Delete without image specification	warning
`04`	Image No. Deciding Error	Image numbering operation	error
`04`	Invalid Parameter (W/L Control)	Invalid window/level control parameter received	warning
`05`	There was not enough in specified Image	Delete with insufficient image data	warning
`05`	Access is out of Image Area	Accessing outside image boundaries	error
`05`	Study Area full	Attempting to allocate to study area	error
`05`	Invalid Parameter (Frame Setting)	Frame configuration parameter outside valid range	warning
`06`	There is no space in Image INFO BUFFER	Image information buffer operation	error
`06`	Invalid Parameter (Frame Data)	Frame data packet corrupted or incomplete	error
`06`	Image INFO Block full	Image information allocation	error
`07`	The reading size of Image INFO is too big	Reading oversized image information	error
`07`	The Area in Image File full	Writing to image file	error
`07`	Invalid Parameter (W/L)	Window/Level parameter invalid	warning
`08`	Image File full	Image storage operation	error
`08010003`	Nonexistent Target Task	OS directive references task that does not exist	error
`08010005`	Segment Table Full	OS segment table capacity exceeded	error
`08010006`	Duplicate Segment Name	OS detects duplicate segment name during creation	error
`08010008`	Insufficient Memory	OS memory allocation fails; insufficient free memory	error
`09`	Impossible to delete for all of the appointed study are protected from Delete	Delete protected study	warning
`09`	There is no space in Image INFO BUFFER	Allocating image information	error
`0A`	Impossible to delete for some of the appointed study are protected from Delete	Delete partially protected study	warning
`0A`	The size of Image INFO is too big	Image information storage	error
`0A`	Invalid Parameter (Identify)	Invalid identification parameter	warning
`0A20`	Connection destroyed	Network connection unexpectedly closed	warning
`0A32`	Network is down	Network interface unavailable or unreachable	critical
`0A33`	Cannot connect network due to abnormal AUI cable and ETC	Ethernet board (ETC) cable connection failure	error
`0A3C`	Connection time out	Network connection establishment timeout	error
`0A50`	Abnormal configuration parameter	Ethernet configuration validation failed	error
`0A58`	Faulty Lock	Lock mechanism failed in Ethernet driver	error
`0A5A`	PANIC (in–in_control)	PANIC condition in input control function	critical
`0B`	Study INFO Initial Value Error	Study initialization	error
`0B`	Invalid Parameter	Unspecified invalid parameter	warning
`0B`	Impossible to delete for the study of the appointed Image is protected from delete	Delete image from protected study	warning
`0C`	Image INFO Initial Value Error	Image initialization	error
`0C`	Invalid Parameter (Image Display)	Image display parameter error	warning
`0D`	The designated Image doesn't exist	Attempting to access image	error
`0D`	Invalid Parameter (Image Data Read)	Error reading image data parameters	error
`0E`	Number Full (SER/ACQ/IMG)	Image numbering capacity reached	critical
`0E`	Unspecified Error	Unknown error condition	error
`0F`	Unspecified Error	Unknown error condition	error
`10`	Time Out (Image Display)	Image display operation exceeded timeout	error
`10`	OD Off line	OD device operation	error
`1000000C`	Insufficient System Space	File system space exhausted during I/O operation	error
`10000020`	CFMS CPU Time Out	CFMS processor fails to respond within timeout period	critical
`10000021`	CFMS CPU Fail	CFMS processor reports hardware failure or fatal error	critical
`10000082`	Invalid Function	I/O operation requests unsupported or undefined function code	error
`100000C7`	Internal IO Error	Unrecoverable internal I/O subsystem error	error
`100000CD`	Disk Space Full	File system disk space exhausted during write operation	error
`100000D1`	Unrecoverable Device Error	Device hardware failure; data transfer cannot proceed	critical
`100000D2`	Data Compare Error	Read-back data does not match written data; checksum or ECC failure	error
`100000E1`	Device not ready	Device initialization or access attempt	error
`100000E2`	Device busy	Attempt to access device while processing	warning
`100000E3`	Data CRC error	Data read or write operation	error
`100000E6`	Timeout	Device operation exceeds time limit	error
`100000E8`	Checksum error	Data validation check failure	error
`100000EF`	Bad sector	Attempt to access defective disk sector	critical
`100000F4`	Controller error	Disk controller malfunction	error
`10-1C`	Error during DMP2 ASSY test	DMP2 assembly failed power-up self-test	critical
`10-33`	Error during PDC assembly test	PDC hardware test fails during power-up	critical
`$11`	SRAM write/read/verify test 1 failed	CPW Phase 1 self-test execution	error
`11`	OD Protected	OD write operation	warning
`11`	Time Out (Graphic Cursor)	Graphic cursor operation timed out	warning
`11H–1BH`	File Processor (FMP1) ASSY hardware test failure	FMP1 ASSY tests during power-up sequence (phases 11H through 1BH)	error
`12`	Impossible to Allocate for Illegal Form of STUDY/IMAGE INFO	Study or image allocation with invalid format	error
`$12`	Bus error during ROM test	CPW Phase 1 self-test execution	error
`$13`	ROM checksum test failed	CPW Phase 1 self-test execution	error
`$14`	Interrupt handler write/read/verify test failed	CPW Phase 1 self-test execution	error
`$15`	Control/status register write/read/verify test failed	CPW Phase 1 self-test execution	error
`$16`	DMAC register write/read/verify test failed	CPW Phase 1 self-test execution	error
`$17`	Bus error during IPU2 mode test	CPW Phase 1 self-test execution	error
`$18`	CPW-DRAM write/read/verify test 1 failed	CPW Phase 1 self-test execution	error
`180000E1`	Device not ready	Device initialization or access attempt	error
`180000E3`	Data CRC error	Data read or write operation	error
`180000E6`	Timeout	Device operation exceeds time limit	error
`180000EF`	Bad sector	Attempt to access defective disk sector	critical
`180000F4`	Controller error	Disk controller malfunction	error
`1A`	Time Out (W/L Processing)	Window/Level processing exceeded timeout	warning
`1B`	Time Out	Generic timeout condition	warning
`1C`	Time Out	Generic timeout condition	warning
`1D`	Time Out	Generic timeout condition	warning
`1E`	Time Out	Generic timeout condition	warning
`$1F`	CPW Phase 2 test failed (FDC, SCSIC, SRAM, DRAM, Calendar, DMA, or HD test)	CPW Phase 2 self-test execution	error
`1F`	Time Out	Generic timeout condition	warning
`20`	Graphic Sequence Error	Graphics sequence protocol violation	error
`20-2C`	Error during OVL2 ASSY test	OVL2 assembly failed power-up self-test	critical
`21`	Directive No. Error	Invalid directive number	error
`21H–22H`	MRX ASSY test failure	MRX ASSY (Matrix control unit) test during power-up sequence	error
`22`	Odd Parameter Address	Parameter address misaligned	error
`23`	Device No. Error	Invalid device number in request	error
`24`	Invalid Request	Request format invalid	error
`25`	Invalid Request	Request format invalid	error
`26`	Invalid Request	Request format invalid	error
`27`	Invalid Parameter (Erase Processing)	Invalid erase operation parameter	warning
`28`	Invalid Parameter (Graphic DMA)	Invalid DMA parameter for graphics	error
`28XX0001`	Directive No. remains undecided	DMA directive number not resolved	error
`28XX0004`	Invalid memory address	DMA access to invalid memory address	error
`28XX0080`	Channel Busy	DMA channel currently in use	warning
`28XX0088`	Bus Error	System bus error during DMA operation	critical
`28XX00A0`	Time Out	DMA operation timeout	error
`29`	Invalid Parameter (Screen Save)	Invalid screen save parameter	warning
`2A`	Invalid Parameter (Overlay Display)	Invalid overlay display parameter	warning
`2B`	Invalid Parameter (Graphic Cursor)	Invalid cursor parameter	warning
`2C`	Invalid Parameter (Report Cursor)	Invalid report cursor parameter	warning
`2D`	Invalid Parameter (LED/Buzzer)	Invalid LED or buzzer control parameter	warning
`2D, 2E`	Error during IFB2 ASSY test	IFB2 assembly failed power-up self-test	critical
`2E`	Invalid Parameter	Unspecified invalid parameter	warning
`2F`	Invalid Parameter	Unspecified invalid parameter	warning
`30`	Time Out (Erase Processing)	Erase operation exceeded timeout	warning
`$31`	ACRTC initialize test failed	DISP Phase 1 self-test execution	error
`31`	Time Out (Graphic DMA)	Graphic DMA operation timed out	error
`31H–39H`	FMP2 or FMP3 ASSY test failure, or PACK/hard disk error	FMP2/FMP3 test or associated PACK and hard disk tests during power-up (ProSpeed/ProSpeed VX uses FMP2; ProSpeed Plus uses FMP3)	error
`$32`	ACRTC pattern RAM write/read/verify test failed	DISP Phase 1 self-test execution	error
`32`	Time Out (Screen Save Overlay)	Screen save overlay exceeded timeout	warning
`32-38`	Error during command write, status read or interrupt reception between FPU and DMP2	FPU and DMP2 communication test failure	critical
`$33`	DISP interrupt test failed	DISP Phase 1 self-test execution	error
`33`	Time Out (Screen Save Image)	Screen save image exceeded timeout	warning
`34`	Time Out (Graphic Cursor)	Graphic cursor operation timed out	warning
`$34`	DISP control register write/read/verify test failed	DISP Phase 1 self-test execution	error
`$35`	Interrupt mask control register write/read/verify test failed	DISP Phase 1 self-test execution	error
`35`	Time Out	Generic timeout	warning
`36`	Time Out	Generic timeout	warning
`$36`	VSYNC interrupt test failed	DISP Phase 1 self-test execution	error
`37`	Time Out	Generic timeout	warning
`$37`	OVL plane memory write/read/verify test failed	DISP Phase 1 self-test execution	error
`$38`	ACRTC DMA test failed	DISP Phase 1 self-test execution	error
`38`	Time Out	Generic timeout	warning
`$39`	OVL plane control register write test failed	DISP Phase 1 self-test execution	error
`39`	Time Out	Generic timeout	warning
`3A`	ACRTIC Command Error	ACRTIC protocol command failed	error
`3A, 3B`	Error during expanded main data memory in FPU on local bus	FMD assembly memory test failure	critical
`3B`	Graphic Sequence Error	Graphics sequence violation	error
`3C, 3D`	Error during DAS buffer memory in FPU on local bus	DAS buffer memory test fails	critical
`3D-31, 39`	Error during main data memory in FPU on local bus	FCP3B assembly main data memory test failure	critical
`40`	Error during communication test between PDC and DMP4 via dual port RAM (PDC context)	PDC-DMP4 communication fails during power-up	error
`40`	Directive No. Error	Invalid directive number	error
`41`	Invalid Parameter Block Address	Parameter block address invalid	error
`$41`	IPU2 register access test failed	IPU2 self-test execution	error
`41-45`	Error during DMP4-PDC communication via dual port RAM	DMP4-PDC communication test fails	critical
`42`	Invalid Parameter	Parameter value invalid	warning
`$42`	IPU2 extended mode access test failed	IPU2 self-test execution	error
`43`	Invalid Request	Request format invalid	error
`$43`	IPU2 command area access test failed	IPU2 self-test execution	error
`$44`	IPU2 CPU mode access test failed	IPU2 self-test execution	error
`44`	Cannot Request Command	Command cannot be executed in current state	warning
`45`	Invalid Number of Characters	Character count mismatch in command	error
`$45`	IPU2 CPU extended mode access test failed	IPU2 self-test execution	error
`45H–47H`	Communication test failure between FMP1 and DMP4	FMP1 attempts to communicate with DMP4 (Scan/Display Processor) during boot	error
`$46`	IPU2 DMA test failed	IPU2 self-test execution	error
`46`	Invalid Parameter	Unspecified parameter error	warning
`46-48`	Error during test of accessing PDC RAM via DMP4 local bus	PDC RAM access test fails	critical
`$47`	IPU2 vector area fetch test failed	IPU2 self-test execution	error
`$48`	IPU2 i860 register access test failed	IPU2 self-test execution	error
`48H–4FH`	Communication test failure between FMP1 and DMP2	FMP1 attempts to communicate with optional DMP2 (Diagnostic Console III processor) during boot	error
`48YY01`	Directive No. Error	Invalid directive number in image data unpack	error
`48YY03`	Unpack Task is Busy	Image unpack task already running	warning
`$49`	IPU2 driver area access test failed	IPU2 self-test execution	error
`50`	Key Board Not Allocated	Keyboard device not allocated	error
`50`	Directive number error	Invalid or unrecognized display directive	warning
`50`	Error during DMP4 internal RAM test via DMP4 local bus (PDC context)	PDC detects DMP4 RAM error	critical
`5000F1`	Display Task is Busy	Display task already executing	warning
`50-55`	Error during communication test between FMP1 and DMP4	FMP1-DMP4 communication fails during power-up	error
`51`	Channel Bus Response Time Out	Channel bus communication timeout	error
`52`	Hardware Error	Hardware communication failed	error
`53`	Invalid Parameter	Parameter invalid	warning
`5314YY30`	Target CPU halted	Target CPU execution halted or frozen	critical
`54`	Not Defined Area	Memory area not defined	error
`55`	Duplicate Define	Memory area defined twice	warning
`56`	Value Not Defined	Required value not set	warning
`57`	Invalid Area Position	Area position out of range	warning
`58`	Invalid Area Size	Area size invalid	warning
`59`	User Prime Display Function	User display function priority error	warning
`5A`	DCB Graphic Flag Double Assigned	Graphic flag multiply assigned	warning
`5B`	Invalid Parameter	Parameter invalid	warning
`5C`	Invalid Parameter	Parameter invalid	warning
`5C`	Error while displaying System Preparation	System display failure during boot sequence	critical
`5D`	Invalid Parameter	Parameter invalid	warning
`5E`	Invalid Parameter	Parameter invalid	warning
`5F`	Invalid Parameter	Parameter invalid	warning
`60`	Read Event Flag Error	Event flag read operation failed	error
`60`	Abnormal termination due to level 7 interrupt before setting vector	Unexpected level 7 interrupt during vector initialization	critical
`60H`	Abnormal termination due to Level 7 interrupt before vector is set	Unexpected interrupt at priority level 7 during early boot-up initialization	critical
`61`	Event Status Error	Event status invalid	warning
`62`	Event Bus Busy Error	Event bus communication blocked	warning
`62H`	Hard disk or floppy disk error	Disk read/write or initialization failure detected during boot	error
`63`	Not Enable Magnetic Character Error	Magnetic character feature disabled	warning
`63H`	Improper sector 0 information on hard disk	Boot sector or partition information corrupted or missing	error
`64`	Cancel Flag Error	Cancel flag error detected	warning
`64H`	Unexpected interrupt other than bus or address error	Interrupt received from unexpected source during boot initialization	critical
`65`	Over Split Over Error	Data split exceeded limits	error
`65H`	Unexpected interrupt due to bus or address error	Bus error or address error detected during boot-up	critical
`66`	Not Split Device Error	Device does not support split mode	error
`67`	Over Line Error	Line count exceeded	warning
`68`	Invalid Parameter Error	Parameter invalid	warning
`68`	Time out during image display	Image display operation exceeds timeout threshold	warning
`69`	Write FIFO Empty Time Out Error	Write FIFO timeout on empty	error
`6A`	Write FIFO Ready Time Out Error	Write FIFO ready timeout	error
`6B`	Read FIFO Ready Time Out Error	Read FIFO ready timeout	error
`6C`	Read FIFO Empty Time Out Error	Read FIFO timeout on empty	error
`6D`	Command End Time Out Error	Command completion timeout	error
`6E`	Command End Time Out Error	Command completion timeout	error
`6F`	BASIC Command Error	BASIC subsystem command failed	error
`70`	Command Error	Generic command execution failure	error
`70`	Unexpected interrupt during initial program loader execution	Interrupt received during IPL execution	critical
`70H`	Unexpected interrupt while executing initial program loader	Interrupt during IPL execution phase	critical
`71`	Invalid Parameter Error	Parameter invalid for operation	warning
`72`	Configuration Error	System configuration is invalid	error
`72H`	Operating system software not found in specified disk	IPL or boot routine unable to locate OS files during disk scan	error
`73`	OS loading timeout	Operating system load exceeds time limit	critical
`73`	Operation Timing Error	Operation timing constraint violated	error
`74`	Operation Timing Error	Operation timing constraint violated	error
`74H`	Error in hard disk or floppy disk during OS loading	Disk read failure while loading operating system	error
`75`	Address Error	Memory address out of range	error
`76`	Address Error	Memory address invalid	error
`77`	Address Error	Address calculation failed	error
`78`	Address Error	Address out of bounds	error
`79`	Bus Error	Bus communication failed	error
`7A`	Bus Error	Bus communication error	error
`7B`	Bus Error	Bus transmission failed	error
`7C`	Bus Error	Bus protocol violation	error
`7D`	Count Error	Data count mismatch	error
`7E`	Count Error	Count mismatch detected	error
`7F`	Count Error	Count validation failed	error
`80`	Abort	Operation aborted by user or system	warning
`80`	Unexpected interrupt during initialize routine execution	Interrupt received during system initialization	critical
`8010`	Bus error	Invalid bus operation or transaction	critical
`8011`	Address error	Invalid memory address access	error
`8012`	Illegal instruction	Processor executes undefined or illegal instruction	critical
`8013`	Zero divide	Division by zero operation attempted	error
`80H`	Unexpected interrupt during OS file initialization or execution	Interrupt during operating system initialization routine	critical
`81`	Unexpected interrupt due to bus error during memory clear	Bus error detected during memory clear operation	critical
`81`	Software Abort	Software abort condition triggered	error
`81H`	Unexpected bus error interrupt during memory clear operation	Bus error detected while clearing system memory	critical
`82`	Software contradiction during initialize routine	Conflicting software state during system initialization	critical
`82`	Software Abort	Software abort condition	error
`82H`	Software contradiction during initialization routine	OS file inconsistency or read error detected during boot initialization	error
`83`	Memory allocation error	Memory allocation failure during initialization	critical
`83`	Software Abort	Software abort triggered	error
`83H`	Memory allocation error	Memory size or layout does not match expected configuration	error
`84`	Software Abort	Software abort	error
`85`	Software Abort	Software abort condition	error
`86`	Software Abort	Software abort triggered	error
`87`	Software Abort	Software abort	error
`88`	DMAC Ready Time Out Error	DMA controller ready timeout	error
`89`	DMAC Ready Time Out Error	DMA ready timeout	error
`8A`	DMAC Ready Time Out Error	DMA timeout	error
`8B`	DMAC Ready Time Out Error	DMA timeout	error
`8C`	DMAC Ready Time Out Error	DMA timeout	error
`8D`	DMAC Ready Time Out Error	DMA timeout	error
`8E`	DMAC Ready Time Out Error	DMA timeout	error
`8E`	ACRTS command error	Invalid or unsupported ACRTS command	error
`8F`	Invalid Parameter Error	Parameter invalid	warning
`90`	Program looping or CPU halt; date/time entry display does not appear	CPU halt or infinite loop detected	critical
`90`	PDC ready for boot or error during PDC peripherals initialization; no DMP4 response (PDC context)	PDC initialization error or DMP4 response failure	critical
`90000001`	PINT (FPU to CPU Interrupt)	FPU to CPU interrupt signal	info
`90000004`	TIME OUT	FPU operation timeout	error
`90000005`	BUSY (FPU RUNNING)	FPU currently executing operation	info
`90000007`	ILLEGAL (Error Occurred in FPU)	FPU generated error condition	error
`90000009`	RESET ERROR (CAN NOT RESET)	FPU reset command failed	critical
`9000000B`	INTERRUPT OVER (Interrupt Buffer Overflow)	FPU interrupt buffer exceeded capacity	error
`9000000C`	The IPU is not idling	IPU not in idle state when operation requested	error
`90H`	Program looping or CPU halt; no response on CRT monitor	CPU execution halted or endless loop detected; no CRT display	critical
`980000XX`	User/Prime display function error	Display function call with invalid parameters or state	warning
`A0`	Abnormal termination due to insufficient memory, improper layout or missing task	Memory configuration error detected at startup	critical
`A0`	Boot-up failure (PDC)	PDC fails to boot during power-up	critical
`A0000001`	I.D No. Error	RAWCTL identifier number invalid or missing	error
`A0000003`	Transfer Byte Error	Byte transfer validation failed	error
`A0000005`	Size Error	Invalid data size in RAWCTL command	error
`A0H`	Abnormal termination due to insufficient memory or improper memory layout	System detects inadequate installed memory or incorrect memory mapping	error
`A1`	No response from DMP4 to PDC boot request (PDC context)	DMP4 fails to respond to boot request	critical
`A1`	Invalid Parameter	Parameter validation failure in display subsystem	error
`A1`	Abnormal termination due to improper memory layout	Duplicate task or missing task detected during initialization	error
`A1H`	Abnormal termination due to improper memory layout or configuration	Memory layout error, duplicate task, or missing task detected during initialization	error
`A2`	Not Defined Area	Attempt to access undefined display area	warning
`A3`	Duplicate Define	Duplicate area definition detected	warning
`A3`	Error during PDC boot-up by DMP4	PDC boot initialization fails	critical
`A8000001`	Internal logic error (IFM Display Error)	IFM display subsystem logic fault	error
`B0`	File read failure (PDC)	PDC fails to read file	critical
`B1`	Error during PDC data file read	PDC fails to read data file	critical
`B7`	Read Event Flag Error	Event flag read operation failed	error
`B8`	Event Status Error	Event status check failed	error
`C0`	No response from DMP4 to PDC boot-up completion message	DMP4 does not respond after PDC boot-up	critical
`C0`	Write FIFO Empty Time Out Error	Write FIFO timeout during empty condition	error
`C001`	Station number error	Invalid station or model number parameter	warning
`C1`	Initialize failure of touch panel	Touch panel fails to initialize	warning
`C-1`	Function No. Error	Invalid function number	error
`C-2`	Station No. Error (It is impossible to change to Model/Machine No.)	Invalid or incompatible station number	error
`C2`	AGDC error	AGDC hardware or function failure	critical
`C3`	Font composition error	Font file corruption or missing	warning
`C-3`	Study No. Error (except for the numeric data)	Invalid study number format or value	error
`C-4`	Series No. Error (except for the numeric data)	Invalid series number	error
`C-5`	ACQ No. Error (except for the numeric data)	Invalid acquisition number	error
`C5`	Command End Time Out Error	Command execution timeout	critical
`C-6`	IMG No. Error (except for the numeric data)	Invalid image number	error
`C-7`	There is no STD in STD INFO which is ready	Accessing uninitialized study information	error
`C-8`	There is no IMG in IMG INFO which is ready	Accessing uninitialized image information	error
`C-9`	The number of Image INFO Block is except for (or )	Invalid image info block count	error
`C-A`	The number of List is less than 1	Empty list operation	warning
`C-B`	Completion Type Error	Invalid completion type value	error
`C-C`	Flag Error (Mode etc.)	Invalid flag or mode setting	error
`C-D`	It is not Old in spite of the other machine	Version mismatch between machines	warning
`C-E`	Search Mode is 0 and Model/Machine No. is 0	Invalid search parameters	error
`C.E.`	Communication Error alarm	Communications failure with motor control	warning
`C-F`	Image size is 0	Zero image size parameter	error
`CPU packet error`	CPU packet writing or transmit error	Communication failure during CPU-ETC data exchange	critical
`D0`	Bus error from accessing nonexistent memory or executing inadequate instruction	Power-up sequence attempts access to invalid memory address or executes bad instruction	critical
`D0H`	Bus error due to accessing nonexistent memory or inadequate instruction	Bus error during memory access or instruction execution	critical
`D1`	Address error from word reference to odd address	Processor attempts word-aligned access to odd memory address	critical
`D1`	Configuration Error	System configuration validation failed	error
`D1H`	Address error due to word reference to odd address	CPU attempts to access word (16-bit) at odd address	critical
`D2`	Operation Timing Error	Timing constraint violation during operation	error
`D2-D8`	Exception from incorrect instruction or corrupted memory	Invalid instruction executed or memory access violation	critical
`D2H–D8H`	Unexpected interrupt due to incorrect instruction or corrupted memory	Interrupt from incorrect or corrupted instruction during execution	critical
`D4`	Address Error	Invalid memory address access	error
`D8`	Bus Error	System bus communication failure	critical
`E0`	Abnormal termination due to OS-related task abort	Operating system task unexpectedly terminated	error
`E0`	Abort	System abort requested	critical
`E005`	Lower order not deleted during study pointer delete	Study pointer deletion with undeletedsubordinatedata	error
`E0H`	Abnormal termination due to OS-related task abort	Operating system task aborted during execution	error
`E1`	Software Abort	Software-initiated abort	critical
`E1`	Abnormal operation system	Operating system error condition detected	error
`E-1`	Event Code Error	Invalid event code	error
`E-2`	Sub Code Error	Invalid subcode	error
`E270`	Undefined command received by generator	Generator receives command not recognized by system	error
`E271`	Parameter out of allowable range	Generator receives parameter with invalid value	error
`E272`	Parameter modification not allowed in current phase	System attempts to change exposure parameters in wrong phase	error
`E273`	Phase change not allowed in current phase	System attempts invalid phase transition	error
`E274`	Exposure command received at wrong timing	Generator receives exposure command when not ready	error
`E-3`	This was already registered during Study INFO Allocate	Duplicate registration during study allocation	warning
`E-4`	This was already registered during Allocate in Image INFO File	Duplicate during image info allocation	warning
`E-6`	LOWER ORDER is not deleted during Study Pointer Delete	Study pointer delete without lower order removal	error
`E-7`	LOWER ORDER is not deleted during Study INFO Delete	Study info delete without lower order removal	error
`E-8`	LOWER ORDER is not deleted during Image INFO Delete	Image info delete without lower order removal	error
`E8`	DMAC Ready Time Out Error	DMA controller ready signal timeout	error
`E-9`	SCBITOR Error during Study INFO Delete	SCBITOR error in study deletion	error
`E-A`	SCBITOR Error during Image PTR/File Delete	SCBITOR error during image deletion	error
`E-B`	The area in Image INFO File full	Image info file storage exhausted	error
`E-C`	This was already registered during Image INFO Allocate	Duplicate during image info allocation	warning
`E-D`	Scan or Load is different from the position in File during Image INFO Allocate	Scan/Load position mismatch	warning
`E/e01`	550 VDC Supply Error	Correct 550 or 750 VDC could not be measured in x-ray generator	error
`E/e02`	15V_SAFE Voltage Failure	Power supply voltage for optical devices in KV Inverter and CTVRC out of specified range (13.5–15.5 V)	error
`E/e03`	CTVRC Short-circuit Error	Short-circuit (shoot-through) detected between safety loop closure and 550/750 VDC confirmation	critical
`E/e11`	Rotor Controller Error	Rotor did not start normally or 550/750 VDC supply failed during rotor startup	error
`E/e12`	Rotor Acceleration Error	Specific rotor speed not attained within specified time	error
`E/e16`	Stator Current Error	Current in either stator winding outside specified range; phase-specific (2=acceleration, 3=run, 7=brake)	error
`E/e18`	Stator Current Unbalance	Difference in currents between two windings exceeded specified values; phase-specific (2=accel, 3=run, 7=brake)	error
`E/e21`	Filament Overcurrent	Filament heating current exceeded specification	error
`E/e22`	No Filament Current	Filament heating current not detected	error
`E/e23`	Small Focus Change Error	Filament focus position drifted beyond specification	error
`E/e24`	Invalid Power Supply Voltage For Filament Heating	Filament heating supply voltage out of specification	error
`E/e25`	Filament Inverter Error	Filament inverter circuit failure or malfunction	error
`E/e31`	Tube Current Accuracy Error	X-ray tube currents measured outside specifications	error
`E/e32`	Tube Voltage Accuracy Error	X-ray tube voltages (HV tank output) outside specifications	error
`E/e33`	Spit	Spits detected during exposure at rate exceeding 30 spits/s	warning
`E/e34`	Exposure Overtime	Exposure time exceeded 105% of set time	error
`E/e35`	Anode Over MA	Tube current measured on anode side outside specifications	error
`E/e36`	Cathode Over MA	Tube current measured on cathode side outside specifications	error
`E/e37`	Anode Over KV	Tube anode voltage from HV tank measured above specification	error
`E/e38`	Cathode Over KV	Tube cathode voltage from HV tank measured above specification	error
`E/e39`	Anode Inverter Shoot-through	Surge currents detected in anode inverter	error
`E/e40`	Cathode Inverter Shoot-through	Surge currents detected in cathode inverter	error
`E/e41`	Anode Inverter Overcurrent	Output currents from anode inverter outside specifications	error
`E/e42`	Cathode Inverter Overcurrent	Output currents from cathode inverter outside specifications	error
`E/e43`	HV_ON Error	HV_ON signal (KV >75% of set) became active without exposure command from system	error
`E/e44`	KV Unbalance (Negative)	(Cathode KV – Anode KV) greater than 5 kV	error
`E/e45`	KV Unbalance (Positive)	(Anode KV – Cathode KV) greater than 5 kV	error
`E/e48`	Safety Loop Control Error (Generator Side)	Safety loop detected as open on generator side	critical
`E/e49`	Safety Loop Control Error (System Side)	Safety loop detected as open on system side	critical
`E/e50`	EPROM Checksum Error	Checksum error during EPROM test in background; all generator phases	error
`E/e51`	RAM Checksum Error	Checksum error during RAM test in background; all generator phases	error
`E/e52`	EEPROM Write Error	Write operation into EEPROM did not succeed	error
`E/e53`	EEPROM Checksum Error	Checksum error during EEPROM test at power-up; EEPROM new, replaced, or write failed	warning
`E/e60`	Communication Error	System does not send ACK response after generator transmits communication data	error
`E/e61`	System Request Error	Generator does not receive periodic Request Commands from system during exposure at correct timing	error
`E/e81`	550 VDC Supply Error at Exposure Preparation Start	Correct 550/750 VDC not measured within 1.2 seconds after safety loop closure before exposure	error
`E/e82`	Exposure Command Timeout Error	No exposure command received within 90 seconds of phase 3 (Exposure Ready)	error
`E/e83`	KV Rise Timeout	Tube voltage did not reach specified minimum within specified time after KV Inverter start	error
`E/e84`	KV Fall Timeout	Tube voltage did not lower to specified level within specified time after KV Inverter shutdown	error
`EF`	Abnormal operation system	System operation exception detected	warning
`EFH`	Abnormal operation of entire system	System detects abnormal operation status during initialization or execution	error
`ER-001`	System Error	System failure; Error of Directive/System Subroutine etc.	critical
`ER-002`	Undefined Event Received	There was a failure in the Event Data (Communication message)	error
`ER-003`	Abnormal Termination Detected	Task was terminated abnormally	error
`ER-004`	Task Termination	EDSP detected the termination of Task	error
`ER-099`	TREND Task Error	Error occurred when Error Message was about to register to Disk at TREND Task	error
`ER-100`	Aperture Error	Aperture mechanism communication or positioning error	error
`ER-101`	Scan Error	Scan error detected during helical or scout scan operation	error
`ER-102`	Gantry Error	Gantry operation failure or communication error	error
`ER-103`	XG Processor Communication Error	X-ray generator processor communication failure	error
`ER-104`	OGP Event Error	OGP processor event or trigger error	error
`ER-105`	Gantry Processor Communication Error	Communication failure between gantry processor and system	error
`ER-106`	Tilt Error	Gantry tilt position outside acceptable range	warning
`ER-107`	Table Error	Table positioning or movement failure	error
`ER-108`	TGP not System	Gantry rotation switch on TGP board not in System position	warning
`ER-109`	Cradle Error	Cradle positioning, latch, or movement failure	error
`ER-110`	Scan Processor Communication Error	Communication failure between scan processor and system	error
`ER-111`	Table Processor Communication Error	Communication failure between table processor and system	error
`ER-112`	TGP Task Time Out	TGP task execution exceeded time limit	error
`ER-115`	TGE Response Timeout	TGE failed to respond within timeout period for various operations	error
`ER-117`	XG Error	X-ray generator error during various operational states	critical
`ER-118`	SCNCCTL Sequence Error	Scan control sequence violation detected	error
`ER-119`	Study No. Error	Study number is not valid ASCII numeric data	error
`ER-120`	Cooling Wait Too Long	Cooling wait time exceeded specified duration	warning
`ER-121`	Next Scan Preparation Time Out	Scan task failed to complete preparation or return status by start time	error
`ER-122`	X-Ray Zero Detect	DAS detector data is zero during scan	error
`ER-130`	Comm. Write Reg. Ans. Net. Wait	Write register answer interrupt received without corresponding request	warning
`ER-131`	Comm. Receive Buffer Over	Communication receive buffer overflow condition	error
`ER-132`	Comm. Transmit Buffer Over	Communication transmit buffer overflow condition	error
`ER-133`	Comm. Write Reg. Ans. Timeout	Write register answer not received within timeout period	error
`ER-135`	PNLCTL Sequence Error	Panel control sequence violation during system operation	error
`ER-136`	IP Error	Interface processor error or peripheral device failure	error
`ER-137`	Audio Communication Error	Autovoice function error or 6388 audio processor communication failure	warning
`ER-138`	TGP Communication Error	Communication error between MP on TGP and IP on OC interface	error
`ER-139`	DMP4 - IP Communication Error	Communication error between DMP4 and IP on OC interface	error
`ER-140`	Anode Temperatures Over	Tube anode temperature exceeded safe operating limit	critical
`ER-141`	Case Temperature Over	Tube case temperature exceeded safe operating limit	critical
`ER-151`	Scan Timeout	DAS data collection did not complete within timeout period	error
`ER-152`	Warm up Error	Detector warm-up self-test failed	error
`ER-153`	Initialize Air Data Error	Initial air calibration data failed validation	error
`ER-154`	DBM Full	DBM memory filled with raw scan data	warning
`ER-160`	Event Sequence Error	Error in event sequence of data, OK/NG status from offline or soft key	error
`ER–160`	PDC Error (Plazma Display, Touch Panel, etc.)	Errors related to the PDC board	error
`ER–170`	Data Compare Error	Test Pattern Data mismatch in DAS Data Transfer Test	error
`ER–201`	Recon Timeout	Image reconstruction fails to complete within timeout period	error
`ER–202`	Invalid Parameter	Parameter conversion error during operator-CPU communication	error
`ER–203`	View Data Corrected	DAS data transfer error detected during image reconstruction	warning
`ER–204`	View Data Error Not Corrected	DAS data transfer error detected during reconstruction; views cannot be corrected	error
`ER–400`	Duplicate Study ID Deleted	Duplicate STUDY IDs found in STUDY POINTER area	warning
`ER–401`	No Study Inf. ID Deleted	STUDY POINTER lacks corresponding STUDY INF. entry	warning
`ER–402`	Illegal Study Eye Catcher	STUDY INF. EYE CATCHER field differs from expected signature	warning
`ER–403`	Illegal Study ID Deleted	STUDY ID in STUDY INF. differs from STUDY POINTER contents	warning
`ER–404`	Study in Old Area Deleted	STUDY POINTER in old area chains to STUDY INF. in new area	warning
`ER–405`	Old Study Inf. Study Deleted	STUDY POINTER in new area chains to STUDY INF. in old area	warning
`ER–406`	Same Area Inf. Study Deleted	STUDY POINTER with duplicate area found in STUDY INF.	warning
`ER–407`	No Buffer for Image Inf.	System cannot allocate memory buffer to read IMGINF	error
`ER–408`	Image Inf. Size Over	IMGINF data exceeds allocated buffer size	error
`ER–409`	Illegal Image Inf Eye Catcher	IMGINF EYE CATCHER field signature is invalid	warning
`ER–410`	Illegal Study No Image Deleted	STUDY NO. differs between STUDY INF. and IMAGE INF.	warning
`ER–411`	Duplicate Image Inf Deleted	Duplicate IMAGE IDs found in IMGINF	warning
`ER–412`	No Image Data Image Inf Deleted	IMAGE DATA not found for corresponding IMGINF entry	warning
`ER–413`	Illegal Study ID Image Deleted	STUDY ID mismatch between IMAGE INF. and IMAGE POINTER	warning
`ER–414`	Illegal Study ID Image Deleted	IMAGE ID mismatch between IMAGE INF. and IMAGE POINTER	warning
`ER–415`	Same Area Image Inf. Deleted	Duplicate area detected in IMAGE DATA storage	warning
`ER–416`	Image Data Area Size Over	Required IMAGE DATA storage exceeds available space	error
`ER–417`	Duplicate Image Pointer Deleted	Duplicate IMAGE POINTER found with same area IMGINF	warning
`ER–418`	Image Pointer Area Size Over	Required IMAGE POINTER storage exceeds available space	error
`ER–419`	Same Area Image Inf Deleted	Two IMGINF entries found in same storage area	warning
`ER–420`	Image Inf Area Size Over	Required IMGINF storage exceeds available buffer	error
`ER–421`	No Image Inf Study Inf Deleted	STDINF entry exists with no associated IMGINF	warning
`ER–422`	Study Inf Area Size Over	Required STDINF storage exceeds available space	error
`ER–430`	Event Code Error	IMAGE FILE MANAGEMENT PROCESSOR received illegal event	error
`ER–431`	Event Sequence Error	Event received at illegal timing during IMAGE FILE MANAGEMENT operation	error
`ER–432`	Logical Error	Logic error in IMAGE FILE MANAGEMENT processor operation	error
`ER–433`	Image Already Stored	Image attempted for storage already exists on MT or FD	warning
`ER–434`	Image Already Exist	Image retrieval attempted for image already in system memory	warning
`ER–435`	Image Not Found	Image retrieval or store operation fails; image not on requested disk or device	error
`ER–436`	Image in Scan Study, No Load	Cannot load image study number that matches current scanning study	warning
`ER–437`	OD Study Incorrect, No Store	Only Study Inf. OR only Image Inf. exists; incomplete study cannot be stored to OD	warning
`ER–440`	OD Study Inf Nothing	Study has Image Inf. file but OD cannot find corresponding image data	error
`ER-440`	OD Study information nothing	OD operation interrupted by unexpected system shutdown	error
`ER-441`	OD Image information nothing	OD operation interrupted by unexpected system shutdown	error
`ER–441`	OD Image Inf. Nothing	Study exists on OD but Image Inf. file missing; study cannot be accessed	error
`ER–442`	OD Study Inf. Incorrect	Image count mismatch between Study Inf. and actual Image Inf. file entries on OD	warning
`ER-442`	OD Study information incorrect	OD operation interrupted by unexpected system shutdown	error
`ERRG`	Gantry Processor error	RAM or ROM check error, gantry azimuth initialize failure	error
`ERRG LED ON`	Gantry Processor detected error and hanged up	RAM/ROM/servo error or gantry rotation initialization failure	error
`ERRM`	Management Processor error	RAM or ROM check error on TGP board	error
`ERRM LED ON`	Management Processor detected error and hanged up	RAM/ROM failure during power-on	error
`ERROR XXXXXXXX`	Unspecified system or hardware error occurred	System encounters internal error during file access, processing, or display operation	critical
`ERRS LED ON`	OGP Scan Processor error detected	RAM/ROM/communication failure during power-on or operation	error
`ERRT`	Table Processor error	RAM or ROM check error in Table Processor	error
`ERRT LED ON`	Table Processor detected error and hanged up	RAM/ROM failure or display check failure during power-on	error
`F0`	Time Out Error	General timeout in system operation	error
`F001`	(Memory Space) Table full	Memory management table overflow	error
`F012`	(Packet transmission) Busy	Packet transmission queue full or busy	warning
`F01D`	(Packet transmission) Failed	Packet transmission operation failed	error
`F022`	(Packet reception) Busy	Packet reception handler busy or overloaded	warning
`F02D`	(Packet reception) Failed	Packet reception operation failed	error
`F101`	Initialization table full	Ethernet initialization task encounters full table condition	warning
`F102`	Initialization busy	Ethernet board busy during initialization	warning
`F103`	Initialization abnormal pattern	Unexpected data pattern during initialization	error
`F104`	Initialization over range	Parameter exceeds valid range during initialization	error
`F106`	Initialization request doubled	Duplicate initialization request received	warning
`F107`	Initialization abnormal designated address	Invalid address specified during initialization	error
`F108`	Initialization not found	Expected initialization resource not detected	error
`F10C`	Initialization retry counts exceed specifications	Multiple initialization attempts fail	critical
`F10D`	Initialization failed	Ethernet board initialization does not complete	error
`F10E`	Initialization not supported	Initialization function unavailable on this hardware	warning
`F10F`	Initialization not ready	Ethernet board not ready for initialization	warning
`F111`	Transmission table full	Ethernet transmission queue overflow	warning
`F112`	Transmission busy	Ethernet board occupied during transmission	warning
`F113`	Transmission abnormal pattern	Invalid data pattern in transmission buffer	error
`F114`	Transmission over range	Transmission data exceeds buffer capacity	error
`F116`	Transmission request doubled	Duplicate transmission request detected	warning
`F117`	Transmission abnormal designated address	Invalid destination address for transmission	error
`F118`	Transmission not found	Transmission endpoint not detected	error
`F11C`	Transmission retry counts exceed specifications	Multiple transmission attempts fail	critical
`F11D`	Transmission failed	Ethernet transmission does not complete	error
`F11E`	Transmission not supported	Transmission mode unavailable	warning
`F11F`	Transmission not ready	Ethernet board not ready to transmit	warning
`F121`	Reception table full	Ethernet reception buffer overflow	warning
`F122`	Reception busy	Ethernet receiver occupied	warning
`F123`	Reception abnormal pattern	Invalid pattern in received data	error
`F124`	Reception over range	Received data exceeds buffer size	error
`F126`	Reception request doubled	Duplicate reception request	warning
`F127`	Reception abnormal designated address	Invalid source address in received data	error
`F128`	Reception not found	Reception endpoint not detected	error
`F12C`	Reception retry counts exceed specifications	Multiple reception attempts fail	critical
`F12D`	Reception failed	Ethernet reception incomplete	error
`F12E`	Reception not supported	Reception mode unavailable	warning
`F12F`	Reception not ready	Ethernet receiver not initialized	warning
`F2`	Cannot Display During Horizontal Blanking	Display refresh attempted during horizontal blanking interval	warning
`F201`	Initialization table full	Second Ethernet interface initialization queue overflow	warning
`F202`	Initialization busy	Second Ethernet interface busy	warning
`F203`	Initialization abnormal pattern	Abnormal data during second interface init	error
`F204`	Initialization over range	Parameter exceeds range on second interface	error
`F206`	Initialization request doubled	Duplicate request on second interface	warning
`F207`	Initialization abnormal designated address	Invalid address on second interface	error
`F208`	Initialization not found	Expected resource missing on second interface	error
`F20C`	Initialization retry counts exceed specifications	Multiple failures on second interface init	critical
`F20D`	Initialization failed	Second interface initialization fails	error
`F20E`	Initialization not supported	Function unavailable on second interface	warning
`F20F`	Initialization not ready	Second interface not ready	warning
`F211`	Transmission table full	Transmission queue overflow on second interface	warning
`F212`	Transmission busy	Second interface transmitter occupied	warning
`F213`	Transmission abnormal pattern	Bad data pattern in transmission	error
`F214`	Transmission over range	Transmission data too large	error
`F216`	Transmission request doubled	Duplicate transmission request	warning
`F217`	Transmission abnormal designated address	Invalid destination address	error
`F218`	Transmission not found	Endpoint not detected	error
`F21C`	Transmission retry counts exceed specifications	Multiple transmission failures	critical
`F21D`	Transmission failed	Transmission incomplete on second interface	error
`F21E`	Transmission not supported	Mode unavailable	warning
`F21F`	Transmission not ready	Transmitter not ready	warning
`F221`	Reception table full	Reception buffer overflow on second interface	warning
`F222`	Reception busy	Receiver occupied on second interface	warning
`F223`	Reception abnormal pattern	Invalid pattern in received data	error
`F224`	Reception over range	Received data too large	error
`F226`	Reception request doubled	Duplicate reception request	warning
`F227`	Reception abnormal designated address	Invalid source address	error
`F228`	Reception not found	Reception endpoint missing	error
`F22C`	Reception retry counts exceed specifications	Multiple reception failures	critical
`F22D`	Reception failed	Reception incomplete on second interface	error
`F22E`	Reception not supported	Mode unavailable on second interface	warning
`F22F`	Reception not ready	Receiver not initialized on second interface	warning
`F911`	Ethernet board initialization table full	Ethernet board init queue overflow	warning
`F912`	Ethernet board initialization busy	Ethernet board busy during init	warning
`F913`	Ethernet board initialization abnormal pattern	Abnormal data during board init	error
`F914`	Ethernet board initialization over range	Parameter exceeds range during init	error
`F916`	Ethernet board initialization request doubled	Duplicate init request on board	warning
`F917`	Ethernet board initialization abnormal address	Invalid address during board init	error
`F918`	Ethernet board initialization not found	Expected resource missing from board	error
`F91C`	Ethernet board initialization retry counts exceed specifications	Multiple init failures on board	critical
`F91D`	Ethernet board initialization failed	Board initialization does not complete	error
`F91E`	Ethernet board initialization not supported	Init function unavailable on board	warning
`F91F`	Ethernet board initialization not ready	Board not ready for init	warning
`F921`	Ethernet board queue transmission table full	Queue transmission buffer overflow	warning
`F922`	Ethernet board queue transmission busy	Queue transmission in progress	warning
`F923`	Ethernet board queue transmission abnormal pattern	Invalid data in queue transmission	error
`F924`	Ethernet board queue transmission over range	Transmission data exceeds capacity	error
`F926`	Ethernet board queue transmission request doubled	Duplicate queue transmission request	warning
`F927`	Ethernet board queue transmission abnormal address	Invalid address in queue transmission	error
`F928`	Ethernet board queue transmission not found	Transmission endpoint missing	error
`F92C`	Ethernet board queue transmission retry counts exceed specifications	Multiple transmission failures in queue	critical
`F92D`	Ethernet board queue transmission failed	Queue transmission incomplete	error
`F92E`	Ethernet board queue transmission not supported	Transmission mode unavailable	warning
`F92F`	Ethernet board queue transmission not ready	Transmission not initialized	warning
`F931`	Ethernet board mail transmission table full	Mail transmission queue overflow	warning
`F932`	Ethernet board mail transmission busy	Mail transmission in progress	warning
`F933`	Ethernet board mail transmission abnormal pattern	Invalid data in mail transmission	error
`F934`	Ethernet board mail transmission over range	Mail data exceeds buffer capacity	error
`F936`	Ethernet board mail transmission request doubled	Duplicate mail transmission request	warning
`F937`	Ethernet board mail transmission abnormal address	Invalid destination in mail transmission	error
`F938`	Ethernet board mail transmission not found	Destination not detected	error
`F93C`	Ethernet board mail transmission retry counts exceed specifications	Multiple mail transmission failures	critical
`F93D`	Ethernet board mail transmission failed	Mail transmission incomplete	error
`F93E`	Ethernet board mail transmission not supported	Transmission mode unavailable	warning
`F93F`	Ethernet board mail transmission not ready	Transmission not initialized	warning
`F941`	Ethernet board temporary stop table full	Stop command queue overflow	warning
`F942`	Ethernet board temporary stop busy	Stop operation in progress	warning
`F943`	Ethernet board temporary stop abnormal pattern	Invalid data in stop command	error
`F944`	Ethernet board temporary stop over range	Stop parameter exceeds range	error
`F946`	Ethernet board temporary stop request doubled	Duplicate stop command	warning
`F947`	Ethernet board temporary stop abnormal address	Invalid target address	error
`F948`	Ethernet board temporary stop not found	Target not detected	error
`F94C`	Ethernet board temporary stop retry counts exceed specifications	Multiple stop command failures	critical
`F94D`	Ethernet board temporary stop failed	Stop command unsuccessful	error
`F94E`	Ethernet board temporary stop not supported	Stop function unavailable	warning
`F94F`	Ethernet board temporary stop not ready	Stop not initialized	warning
`F951`	Ethernet board operation resumption table full	Resume queue overflow	warning
`F952`	Ethernet board operation resumption busy	Resume operation in progress	warning
`F953`	Ethernet board operation resumption abnormal pattern	Invalid data in resume command	error
`F954`	Ethernet board operation resumption over range	Resume parameter exceeds range	error
`F956`	Ethernet board operation resumption request doubled	Duplicate resume command	warning
`F957`	Ethernet board operation resumption abnormal address	Invalid target address for resume	error
`F958`	Ethernet board operation resumption not found	Resume target not detected	error
`F95C`	Ethernet board operation resumption retry counts exceed specifications	Multiple resume failures	critical
`F95D`	Ethernet board operation resumption failed	Resume command unsuccessful	error
`F95E`	Ethernet board operation resumption not supported	Resume function unavailable	warning
`F95F`	Ethernet board operation resumption not ready	Resume not initialized	warning
`F961`	Ethernet board task deletion table full	Deletion queue overflow	warning
`F962`	Ethernet board task deletion busy	Deletion operation in progress	warning
`F963`	Ethernet board task deletion abnormal pattern	Invalid data in deletion command	error
`F964`	Ethernet board task deletion over range	Deletion parameter exceeds range	error
`F966`	Ethernet board task deletion request doubled	Duplicate deletion request	warning
`F967`	Ethernet board task deletion abnormal address	Invalid target for deletion	error
`F968`	Ethernet board task deletion not found	Target not located	warning
`F96C`	Ethernet board task deletion retry counts exceed specifications	Multiple deletion failures	critical
`F96D`	Ethernet board task deletion failed	Task deletion unsuccessful	error
`F96E`	Ethernet board task deletion not supported	Deletion function unavailable	warning
`F96F`	Ethernet board task deletion not ready	Deletion not initialized	warning
`F971`	Ethernet board task load start table full	Task load queue overflow	warning
`F972`	Ethernet board task load start busy	Task load in progress	warning
`F973`	Ethernet board task load start abnormal pattern	Invalid data in task load	error
`F974`	Ethernet board task load start over range	Load data exceeds capacity	error
`F976`	Ethernet board task load start request doubled	Duplicate task load request	warning
`F977`	Ethernet board task load start abnormal address	Invalid load address	error
`F978`	Ethernet board task load start not found	Load target not located	error
`F97C`	Ethernet board task load start retry counts exceed specifications	Multiple task load failures	critical
`F97D`	Ethernet board task load start failed	Task load did not complete	error
`F97E`	Ethernet board task load start not supported	Task load function unavailable	warning
`F97F`	Ethernet board task load start not ready	Task load not initialized	warning
`F981`	Ethernet board next operation mode setting table full	Mode setting queue overflow	warning
`F982`	Ethernet board next operation mode setting busy	Mode setting in progress	warning
`F983`	Ethernet board next operation mode setting abnormal pattern	Invalid data in mode setting	error
`F984`	Ethernet board next operation mode setting over range	Mode parameter exceeds valid range	error
`F986`	Ethernet board next operation mode setting request doubled	Duplicate mode setting request	warning
`F987`	Ethernet board next operation mode setting abnormal address	Invalid mode target address	error
`F988`	Ethernet board next operation mode setting not found	Mode target not located	error
`F98C`	Ethernet board next operation mode setting retry counts exceed specifications	Multiple mode setting failures	critical
`F98D`	Ethernet board next operation mode setting failed	Mode setting unsuccessful	error
`F98E`	Ethernet board next operation mode setting not supported	Mode setting unavailable	warning
`F98F`	Ethernet board next operation mode setting not ready	Mode setting not initialized	warning
`F991`	Ethernet board memory access table full	Memory access queue overflow	warning
`F992`	Ethernet board memory access busy	Memory access in progress	warning
`F993`	Ethernet board memory access abnormal pattern	Invalid data pattern in memory access	error
`F994`	Ethernet board memory access over range	Access address exceeds memory range	error
`F996`	Ethernet board memory access request doubled	Duplicate memory access request	warning
`F997`	Ethernet board memory access abnormal address	Invalid memory address specified	error
`F998`	Ethernet board memory access not found	Memory location not accessible	error
`F99C`	Ethernet board memory access retry counts exceed specifications	Multiple memory access failures	critical
`F99D`	Ethernet board memory access failed	Memory access unsuccessful	error
`F99E`	Ethernet board memory access not supported	Memory access type unavailable	warning
`F99F`	Ethernet board memory access not ready	Memory not initialized	warning
`FA71`	Task load start table full	System task load queue overflow	warning
`FA72`	Task load start busy	System task load in progress	warning
`FA73`	Task load start abnormal pattern	Invalid data in system task load	error
`FA74`	Task load start over range	Task load data exceeds capacity	error
`FA76`	Task load start request doubled	Duplicate system task load request	warning
`FA77`	Task load start abnormal address	Invalid system task load address	error
`FA78`	Task load start not found	System task not located	error
`FA7C`	Task load start retry counts exceed specifications	Multiple system task load failures	critical
`FA7D`	Task load start failed	System task load did not complete	error
`FA7E`	Task load start not supported	Task load function unavailable	warning
`FA7F`	Task load start not ready	System task not initialized	warning
`FA91`	System memory access table full	System memory access queue overflow	warning
`FA92`	System memory access busy	System memory access in progress	warning
`FA93`	System memory access abnormal pattern	Invalid pattern in system memory access	error
`FA94`	System memory access over range	System memory address exceeds range	error
`FA96`	System memory access request doubled	Duplicate system memory access request	warning
`FA97`	System memory access abnormal address	Invalid system memory address	error
`FA98`	System memory access not found	System memory location not accessible	error
`FA9C`	System memory access retry counts exceed specifications	Multiple system memory access failures	critical
`FA9D`	System memory access failed	System memory access unsuccessful	error
`FA9E`	System memory access not supported	System memory access type unavailable	warning
`FA9F`	System memory access not ready	System memory not initialized	warning
`F.E.`	Circuit Breaker Off alarm	Circuit breaker opened due to overcurrent	error
`FF`	Initialize failure of plasma display (PDC)	PDC fails to initialize display during power-up	critical
`FILE NOTHING`	Specified file does not exist in system	User enters name of file that is not stored in system memory	error
`INVALID CURSOR`	Cursor positioned out of valid range or incorrectly placed	User attempts ROI, MAGNIFY, PROFILE (H), PROFILE (V), HISTOGRAM, NUMERICAL, or WHERE functions with cursor positioned outside image bounds	warning
`INVALID ENTRY`	Unacceptable parameter or value entered in menu	User enters data outside acceptable format or range for non-RANGE menus	warning
`INVALID FILE`	File name format is incorrect or file is corrupted	User enters file name with incorrect spelling or format, or file data is corrupted	error
`IP/Ethernet address error`	IP address or ethernet address not set	ETC initialization without valid network configuration	error
`LANCE error`	LANCE initiate error, initial error of memory for LANCE, or LANCE initial timeout	Ethernet controller initialization failure	critical
`Memory error`	Work area insufficient or file read error	Memory allocation failure or file system access error during initialization	critical
`MS-000`	Abort Button on	Abort Button has been pressed	info
`MS-001`	Start Timeout	Scan Start Timeout (Didn't press the [Start] button in time)	warning
`MS-002`	Insert KEY-FD	"Key" floppy diskette is not inserted	error
`MS-003`	X-Ray Over Range Detect	X-Ray DATA (DAS Data) overrange	warning
`MS-004`	FPU Busy	FPU is busy	info
`MS-005`	Tube Warm up End	Tube Warm up Routine has completed	info
`MS-006`	Tube Warm up Canceled	Tube Warm up routine was canceled	info
`MS-007`	Reconstruction's Queue Full	Number of Queue request for priority Recon is full	warning
`MS-008`	Recon Completion	Reconstruction Completed	info
`MS-009`	Calibration End	Calibration Program has completed	info
`MS-010`	Calibration Canceled	Calibration routine was canceled	info
`MS-011`	Warm up Scan Set Timeout	Scan set wait for Warm up Scan Timeout (Didn't push [Scan Set] in time)	warning
`MS-012`	Data Compare Error	Discrepancy between transferred data and expected data during DAS Data Transfer Test	error
`MS-060`	Display Busy	The requested program is canceled because Display is in use	info
`MS-070`	Image Data Full (Delete & Reset)	Reconstructed Data can not be store in Disk, for Disk is full of Image Data	error
`MS-071`	Image inf. Full in Study	Reconstruction is impossible because Image Inf. of study is full	error
`MS-072`	Next Scan Preparation Time Out	In Dynamic Scan, Scan is not completed within specified delay time	warning
`MS-073`	Pleas delete images in Disk!	Current number of vacant images less than 100	warning
`MS-099`	On Dynamic Scan	The current function stops for Dynamic Scan	info
`O.C.`	Over Current alarm	Motor winding short or shorted transistor detected	error
`O.H.`	Over Heat alarm	Servo Amp temperature exceeds threshold	warning
`O.L.`	Over Load alarm	Mechanical or motor load exceeds limit	error
`P.E.`	Dynamic Brake Function Fail alarm	Dynamic brake resistor or voltage issue	warning
`RANGE ERROR`	Entered MIN and MAX values are invalid or out of acceptable range	MIN value is greater than or equal to MAX value, or values exceed ±1000000	warning
`RINGS`	Workstation to Scan Processor communication error	Communication signal loss between workstation and OGP board	error
`RINGS LED ON with ERRS`	OGP communication error detected	Slip ring communication failure or timeout during OGP-Management Processor handshake	error
`ROM mismatch`	ROM level does not match program level	ETC firmware load or version mismatch during power-up	critical
`S.E.`	Speed Error alarm	Motor speed does not match commanded speed	warning
`SVALM`	Servo alarm detected	Servo amplifier detects fault condition	warning
`SVALM LED ON`	Servo alarm detected by Gantry Processor	Servo amplifier malfunction or motor failure during gantry initialization	error
`TBLSTOP`	Table cradle control loss	TGP loses control of cradle In/Out operation	error
`V.E.`	Voltage Error Power Fail alarm	Input voltage drop or connection failure	warning
`WARM-UP ERROR`	Warm-up sequence data out of acceptable range	Final scan data collection falls outside specified limits	error
`WARM-UP ERROR`	Warm-up routine completed but data validation failed	Data collected during calibration scan #5 falls outside specified data range or warm-up scans encounter errors	error

Likely causes and actions for each code are in ServiceForge. Connect ServiceForge to your AI

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ServiceForge knowledge base record. Field-unverified unless technicians confirmed it. A teaching summary of the record, not a service manual. Export 2026-10-14.