X-ray systems · ACR family

Kodak ACR-2000: troubleshooting and error codes

The ServiceForge knowledge base holds 65 documented symptoms for the Kodak ACR-2000, with 98 ranked causes, 166 diagnostic checks with test points and expected values, and 0 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

No Galvanometer Movement caution

Galvanometer beam does not sweep across the scan plate during laser operation.

Ranked causes

1. Failed drive circuitry on Data Acquisition PCA (common)
2. DACQ adjusted to zero Galvo span (occasional)
3. Galvo drive signal cable damaged or disconnected (occasional)
4. Galvo Driver PCA failed (occasional)
5. Galvanometer mechanical failure (rare)

First check

Disable PMT High Voltage and install laser interlock

Test point: AUX/IO connector on Data Acquisition PCA
Expected: Connector removed and Laser interlock key installed

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

Galvo motor not operating high voltage

Laser galvo mirror motor does not move or scan across phosphor screen

Ranked causes

1. DACQ board malfunction (common)
2. Galvo driver board failure (common)
3. Galvo motor failure (common)
4. Drive cable J2 malfunction (occasional)

First check

Observe laser beam movement during scan test

Test point: Light Collection Chamber width
Expected: Laser beam extends full width in both directions

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

Laser scan linearity out of specification radiation

Parameter values CAL+, CAL−, Sum of Deltas, or Distance to first edge exceed specified tolerances when tested with linearity test pattern

Ranked causes

1. GALVO SPAN potentiometer R59 out of adjustment (common)
2. GALVO OFFSET potentiometer R58 out of adjustment (common)
3. GALVO DRIVER BOARD potentiometers out of adjustment (occasional)
4. Sum of Deltas parameter out of tolerance (occasional)

First check

Ensure room has minimum light and 5-minute warmup complete

Test point: Equipment ambient
Expected: Room dark, READER at normal operating temperature

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

DI-2000 Self Test Failure

Autozero and/or AGC diagnostic tests fail during self-test execution.

Ranked causes

1. Excessive ambient light in room (common)
2. PMT offset adjustment out of specification (occasional)
3. Photomultiplier tubes (PMTs) defective (occasional)

First check

Run DDT option 13/5 and verify Autozero voltage

Test point: Autozero voltage reading
Expected: within +1 volts (closer to 0 is better), +1 volts

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

LUT (Look-Up Table) transfer or configuration fails

LUT file does not transfer to DACQ BOARD or LUT settings incorrect; affects image contrast and tone mapping

Ranked causes

1. LUT file format or compatibility issue (occasional)
2. DACQ BOARD hardware issue (occasional)
3. Invalid calibration table (occasional)

First check

Load LUT file to DACQ BOARD

Test point: DDT option 4; DACQ BOARD LUT memory
Expected: LUT file transferred successfully; no errors reported

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

No Photomultiplier Tube Output high voltage

PMT does not produce output signal; PMT Output Voltage mean data value is abnormally high or near zero.

Ranked causes

1. Laser not emitting light (common)
2. PMT High Voltage Power Supply failed (common)
3. Bent pins on cable between PMT Preamp and Data Acquisition PCA (occasional)

First check

Perform PMT Output Voltage Adjustment from Chapter 5

Test point: PMT Output Voltage mean data value
Expected: between 600 and 1000 normally digital units, 600–1000

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

Scan file image capture fails or produces poor quality radiation

Captured image is missing data, corrupted, or poor quality; image stored on DATA CONTROL BOARD memory

Ranked causes

1. IMAGE CONTROL BOARD or memory issue (occasional)
2. SCANNER DRIVER error (occasional)
3. Phosphor screen contamination or mechanical jam during scan (occasional)

First check

Initiate scan file capture

Test point: SCANFILE.EXE or DDT option 1
Expected: Scan completes; image stored in memory as default file lsdt.img

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

Scan line noise or degraded signal quality detected

Scan line displays noise or weak signal; noise value high; affects image clarity

Ranked causes

1. High sensor noise or contamination (occasional)
2. Laser power degraded or misaligned (occasional)
3. Scan linearity drift requiring adjustment (occasional)

First check

Display noise value to assess signal quality

Test point: DDT option 20; scan line signal
Expected: Noise level within acceptable baseline range

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

Screen/phosphor plate motor control failure

Motor does not move screen forward/backward during scan; jammed or unresponsive

Ranked causes

1. Screen motor not receiving power or control signal (common)
2. Screen mechanically jammed or obstructed (occasional)
3. Screen motor parameters misaligned or out of spec (occasional)

First check

Energize screen motor and verify movement

Test point: DDT option 12; screen motor and phosphor plate
Expected: Motor activates; screen moves in commanded direction smoothly

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

System will not detect phosphor screens radiation

Screen moves into system several inches and stops without backing up; detector fails to register screen presence

Ranked causes

1. Failed laser module (common)
2. Insufficient laser light output (occasional)
3. Laser misalignment with screen detectors (rare)

First check

Visually confirm laser is emitting light

Test point: Laser beam path inside scanner
Expected: Visible laser light emitting from laser module

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

Calibration: Dosimeter TL-4818 exposure measurement radiation

Procedure to verify and adjust X-ray exposure using TL-4818 dosimeter before adjustment or calibration

Ranked causes

1. Exposure measurement verification required (common)
2. LCD display does not indicate correct value (occasional)

First check

Verify LCD display initial reading

Test point: LCD display on dosimeter
Expected: 0.00

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

Calibration: PMT output voltage adjustment and reference blue LED adjustment radiation

Plate exposed at standard X-ray dosage must produce consistent count level during scanning. PMT high voltage adjusted to give ~600 counts; blue reference LED adjusted to maintain sensitivity via AGC circuit.

Ranked causes

1. PMT sensitivity requires calibration to standard dose exposure (common)
2. Blue reference LED requires adjustment for AGC function (common)

First check

Verify X-ray exposure dose accuracy

Test point: High resolution dose meter reading
Expected: 8 mR ±0.05 mR, ±0.05 mR
Tools: High resolution X-ray dose meter

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

Calibration: PMT output voltage balancing radiation

Two PMT tubes must have matched output amplitudes for consistent image acquisition. If one PMT cannot match the other, both must be replaced as a set.

Ranked causes

1. PMT tube gain mismatch requires balancing (occasional)
2. PMT tubes cannot be matched and require replacement (rare)

First check

Verify X-ray exposure dose for balancing plate

Test point: High resolution dose meter
Expected: 4 mR ±0.05 mR, ±0.05 mR
Tools: High resolution X-ray dose meter

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

Image is white or blank

Acquired image appears completely white or blank

Ranked causes

1. PMT power supply malfunction (common)
2. Bent pins in cable between PMT preamplifier and DAC acquisition board (common)

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

Laser beam not centered in light collection chamber radiation

Beam does not project to center of light collection chamber within tolerance

Ranked causes

1. Galvo mirror misalignment (common)
2. Laser diode module misalignment (occasional)

First check

Verify beam center position

Test point: Light collection chamber opening
Expected: Beam at center +/- 0.5 inches

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

Pixel clock or scan timing parameters incorrect

Scan timing off; pixels not captured at correct intervals; image distorted or incomplete

Ranked causes

1. Scan timing parameters drift or misconfiguration (occasional)
2. DACQ BOARD timing circuit fault (rare)

First check

Display current pixel clock and scan parameters

Test point: DDT option 11; parameter menu
Expected: Current values displayed; note deviation from expected defaults

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

PMT output voltage out of specification radiation

Voltage measured at PMT PREAMP BOARD test point is not -300V DC or higher; output signal is weak or absent.

Ranked causes

1. Bent pins on cable between PMT PREAMP and DACQ boards (common)
2. Missing or low 24V DC at PMT POWER SUPPLY (occasional)

First check

Measure voltage at TP2 on PMT PREAMP BOARD

Test point: TP2 (PMT PREAMP BOARD)
Expected: -300 V DC or higher VDC
Tools: Digital Multimeter set to DC

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

Start/End of film detection not triggering radiation

PHOTOSENSOR fails to detect laser light off PHOSPHOR SCREEN or ISFILM signal does not become positive when film is detected

Ranked causes

1. PHOTOSENSOR misalignment or obstruction (common)
2. DACQ BOARD signal detection failure (occasional)

First check

Verify PHOTOSENSOR detects laser light off PHOSPHOR SCREEN

Test point: PHOTOSENSOR output
Expected: Signal present

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

Vertical lines in images

Random but repeatable vertical lines appear in successive radiographic images

Ranked causes

1. Lint blocking laser beam near focal point (common)
2. Laser beam misalignment (occasional)

First check

Digitize test image and compare with baseline

Test point: System output
Expected: No vertical lines or fewer lines than before cleaning

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

Autozero test does not complete radiation

Autozero diagnostic fails to finish or complete successfully

Ranked causes

1. Excessive ambient light in room (common)

First check

Measure ambient light level

Test point: room environment
Expected: 2 EV or less

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

Blue REF/ISL film board replacement high voltage

Remove and install Blue REF/ISL film board with main power disconnected and dangerous voltage warning observed

Ranked causes

1. Blue REF/ISL film board requires replacement (unknown)

First check

De-energize equipment

Test point: Main power switch
Expected: Equipment powered off

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

Calibration: AGC adjustment radiation

Automatic Gain Control compensation for ambient light during Start of Scan; PMT output adjusted to 6-V maximum with laser beam at center of light collection chamber

Ranked causes

1. Ambient light variation requires AGC recalibration (occasional)

First check

Verify PMT output voltage at light collection chamber center

Test point: PMT output
Expected: 6-V maximum
Tools: Diagnostic tool, voltmeter

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

Calibration: Calibration table generation radiation

Generate new calibration (CAL) table after PMT balancing or maintenance. Procedure varies by software version (NT driver <2.00 vs ≥2.00 or DOS/95/98 ≥3.60).

Ranked causes

1. CAL table must be regenerated after PMT adjustments (common)

First check

Verify X-ray exposure for CAL plate

Test point: High resolution dose meter
Expected: 4 mR ±0.05 mR, ±0.05 mR
Tools: High resolution X-ray dose meter

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

Calibration: Laser beam alignment in light collection chamber radiation

Laser beam position and alignment in the optical path must be verified and adjusted to specification before operation.

Ranked causes

1. Laser beam misaligned after installation or service (unknown)

First check

Laser beam visible on GALVO MIRROR after energizing equipment

Test point: GALVO MIRROR
Expected: Laser beam visible

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

Calibration: PMT output voltage balance reference blue LED high voltage

Adjust blue LED reference voltage to mean value of 1071±10 using potentiometer R2 on REF BLUE LED/SCREEN PRESENT BOARD

Ranked causes

1. Calibration procedure for blue LED reference output (unknown)

First check

Energize blue LED

Test point: REF BLUE LED/SCREEN PRESENT BOARD
Expected: Blue LED energized

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

Calibration: PMT preamp offset high voltage

Set offset value for photomultiplier tube preamplifier to specification 0.0 ± 0.1 mV

Ranked causes

1. PMT preamp offset requires calibration (unknown)

First check

Remove main cover

Test point: Main cover
Expected: Cover removed

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

Calibration: REF BLUE LED/SCREEN PRESENT BOARD high voltage

Adjust potentiometer R2 to achieve Mean value of 1071±10 after energizing blue LED via command-line tool

Ranked causes

1. Potentiometer R2 requires calibration after board replacement or installation (common)

First check

Open command prompt and navigate to DDT tool directory

Test point: Command line
Expected: c:\lsdt32\tools> prompt visible

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

Calibration: Scan Linearity Adjustment

Ensure laser beam reads single line of data in linear region; verify 14 test bars are evenly sampled and positioned within scan range. Adjust beam movement rate and position using potentiometers.

Ranked causes

1. Beam movement rate incorrect or bars mispositioned (common)

First check

Run LNADJDT program and observe Cal+ and Cal- error percentages

Test point: Screen display from LNADJDT
Expected: CAL+ and CAL- errors less than 2% (nominal), less than 3% (preferred), or less than 5% (allowable), nominal <2%, preferred <3%, allowable <5%

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

Calibration: Scan Linearity setup and verification

Prepare unit environment and verify test pattern placement for scan linearity measurement

Ranked causes

1. Ambient light interference with linearity test (common)

First check

Place 14 inch Linearity Adjust Pattern in input slot

Test point: Input slot
Expected: Vertical lines facing unit, widest red bar toward abort button
Tools: 14 inch Linearity Adjust Pattern P/N 0070-966

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

CLUT calibration out of specification

CHKCLUT program reports pixel-to-optical-density conversion is incorrect; scanner produces wrong density values

Ranked causes

1. CLUT file incorrect or outdated (common)

First check

Verify CLUT file correctness using CHKCLUT utility

Test point: Command line interface
Expected: CHKCLUT passes without out-of-specification errors
Tools: CHKCLUT utility, step wedge film, density file

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

Debug screen display toggle

Enable or disable debug screen display mode to view internal program status information during operation

Ranked causes

1. Need internal program status information for troubleshooting (occasional)

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

Diagnostic command execution and system troubleshooting

Access to scanner microprocessor via serial port terminal connection to run diagnostic utilities and troubleshooting commands

Ranked causes

1. Diagnostic access requires terminal connection to serial port (common)

First check

Verify serial port connection parameters

Test point: RS-232 serial line (RJ-11 connector next to SCSI connector)
Expected: Connection established at 9600 baud, 8 bits, No Parity, 1 stop bit (or 56K baud if configured)

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

Diagnostic scan to obtain system information radiation

Run diagnostic scan to collect diagnostic data and system status information

Ranked causes

1. Need system diagnostic data for troubleshooting (common)

First check

Launch DDT diagnostic program

Test point: DOS command prompt
Expected: DDT menu displays with options including Diagnostic Scan

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

DMA controller register dump with caution caution

Dump internal DMA (Direct Memory Access) controller registers; use with caution as command can cause data loss during active transfers

Ranked causes

1. Advanced troubleshooting of DMA controller for data transfer issues (rare)

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

Exit diagnostic program and return to command line

Quit LSDTISO.EXE diagnostic program to access command line prompt for system configuration and diagnostic utilities

Ranked causes

1. Need to exit program to access command line diagnostics or utilities (common)

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

Horizontal lines and banding in images

Dark horizontal bands or horizontal lines appear in radiographic images, particularly at top and bottom

Ranked causes

1. Excessive ambient light in room (common)

First check

Measure ambient light level in room

Test point: Scanner room environment
Expected: 2EV maximum

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

Image density non-uniform or side lighter than expected

Image brightness uneven; one side of image noticeably lighter

Ranked causes

1. PMT malfunction (common)

First check

Run DDT.EXE diagnostic on PMTs

Test point: PMT output value
Expected: Output value not approximately 4095

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

Image has light horizontal lines

Light horizontal lines appear in the image.

Ranked causes

1. Binds occur in the transport (common)

First check

Clean the transport path

Test point: Transport mechanism
Expected: Transport path clear of obstructions

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

Image has vertical lines

Vertical lines visible in acquired image

Ranked causes

1. Beam blocked by particles in optics path (common)

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

Incorrect dosimeter reading due to missing lead shielding radiation

Dosimeter value may be false by 20% if lead sheet or lead apron not used under dosimeter during measurement

Ranked causes

1. Lead shielding not placed under dosimeter (common)

First check

Verify lead shielding present under dosimeter

Test point: Floor area under dosimeter
Expected: Lead sheet or lead apron visible

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

Input guide and output tray cleaning

Daily cleaning of input guide and output tray with anti-static spray maintains proper mechanical operation and prevents dust accumulation.

Ranked causes

1. Dust and contamination accumulate in input guide and output tray (common)

First check

Visually inspect input guide and output tray

Test point: Guide and tray surfaces
Expected: Clean, dust-free, no debris

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

Laser beam out of focus radiation

Laser beam is not visibly in focus on the scanning surface

Ranked causes

1. Connector misalignment or loose setscrews (common)

First check

Verify laser beam focus on paper surface

Test point: Post-it notes placed on slot
Expected: Laser beam is visibly in focus

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

Laser beam position verification before operation radiation

Verify laser beam is visible and properly positioned in optics after energizing equipment before proceeding with adjustment.

Ranked causes

1. Laser beam not visible on GALVO MIRROR (occasional)

First check

Interlock key installed

Test point: INTERLOCK KEY location
Expected: Key is installed

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

Laser radiation exposure hazard radiation

Operator or technician may be exposed to laser beam if equipment covers are removed during operation

Ranked causes

1. Equipment operated without protective covers (rare)

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

No laser light output radiation

Power is on and interlock key installed, but no laser beam projects onto galvo mirror

Ranked causes

1. Laser Module failure (unknown)

First check

Verify laser light presence

Test point: Galvo mirror
Expected: Beam projects onto galvo mirror

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

Non-uniformity of image density

One side of image is significantly darker or lighter than the other side; uneven grayscale across radiograph

Ranked causes

1. Failed Photo-Multiplier Tube (PMT) (common)

First check

Disconnect first PMT cable and digitize test image

Test point: PMT #1 cable connection
Expected: Image quality unchanged if PMT #1 is functional; significant degradation if PMT #1 is failed

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

Photomultiplier Tube not detecting laser radiation

PMT (Photomultiplier Tube) module not responding to laser input; laser diode module not emitting beam.

Ranked causes

1. Laser Diode Module not functioning (common)

First check

Run DDT.EXE diagnostic and verify LASER DIODE MODULE emits beam

Test point: Laser diode output
Expected: Visible laser beam
Tools: DDT.EXE software

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

Plate detector not receiving laser beam radiation

Isfilm signal spikes not visible or beam not hitting three detectors

Ranked causes

1. Roof mirror height misalignment (common)

First check

Measure Isfilm signal

Test point: DDT menu option 20
Expected: Three spikes approximately 1600 in amplitude

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

PMT damage from light exposure caution

Photomultiplier tube (PMT) can be damaged if exposed to light during maintenance when main cover is removed and equipment is energized.

Ranked causes

1. Main cover removed with J14 connected and equipment energized without light protection (common)

First check

Verify room light level is minimized

Test point: Room ambient
Expected: Minimum light conditions

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

PMT light damage risk during maintenance patient safety

Photomultiplier tube (PMT) exposure to light when main cover is removed with J14 connected and equipment energized

Ranked causes

1. Main cover removal without light protection (common)

First check

Verify photographic cloth is in place before removing main cover

Test point: Equipment main cover
Expected: PHOTOGRAPHIC CLOTH 1F1622 covering PMT area

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

PMT Preamp Offset Adjustment caution

Adjust PMT preamp offset voltage to 0mV ±0.1mV to ensure proper photomultiplier tube signal conditioning

Ranked causes

1. PMT Preamp offset voltage not at 0mV (occasional)

First check

Measure voltage at TP9 on DACQ PCA with PMT HV disabled

Test point: TP9 DACQ PCA
Expected: 0mV, ±0.1mV
Tools: DVM set to mV range

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

Replace DATA ACQUISITION (DACQ) BOARD high voltage

DACQ board removed and reinstalled with driver software and calibration files loaded

Ranked causes

1. DACQ board failure or replacement (unknown)

First check

De-energize and disconnect main power

Test point: Main power switch and connector
Expected: Equipment powered off, main connector disconnected

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

Replace lamps in light box high voltage

Lamps in the light box have failed or need replacement as part of maintenance

Ranked causes

1. Lamp end-of-life or failure (common)

First check

De-energize equipment

Test point: main power
Expected: de-energized

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

Replace reader unit high voltage

Reader unit removal and installation procedure for maintenance or replacement

Ranked causes

1. Reader unit requires replacement or service (unknown)

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

Replace SCSI board high voltage

SCSI board removal and installation procedure with file transfer requirements

Ranked causes

1. SCSI board failure or obsolescence requiring replacement (unknown)

First check

De-energize the equipment and disconnect main power

Test point: Equipment power switch and main power connector
Expected: Equipment powered down, no mains voltage present

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

Replace STATUS LED GREEN BOARD high voltage

Board removal and installation procedure for maintenance or fault correction.

Ranked causes

1. STATUS LED GREEN BOARD requires replacement (unknown)

First check

De-energize the equipment

Test point: Main power
Expected: Equipment powered off

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

Room lighting verification for PMT protection patient safety

Ensure adequate darkness in work area before performing PMT-sensitive maintenance

Ranked causes

1. Inadequate room darkness during PMT-exposed service (occasional)

First check

Assess ambient room lighting conditions

Test point: Service work area
Expected: Minimum light level in room

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

Scanner MTF performance out of specification

CHKMTF program detects modulation transfer function does not meet specifications; image sharpness degraded

Ranked causes

1. Scanner optical or mechanical performance degraded (unknown)

First check

Measure scanner MTF using CHKMTF utility

Test point: MTF test film scan
Expected: MTF values within specification limits
Tools: CHKMTF utility, MTF test film

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

Scanner X/Y linearity out of specification

CHKXYLIN program detects pixel or line spacing is non-linear; scan geometry is distorted

Ranked causes

1. X/Y line spacing measurement error or optical distortion (unknown)

First check

Measure X and Y axis linearity using CHKXYLIN utility

Test point: Linearity test film scan
Expected: X and Y line spacing within specification; default threshold 1.25
Tools: CHKXYLIN utility, linearity test film

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

SCSI FIFO error flag status check

Monitor internal FIFO (First In First Out) buffer error flag status to diagnose data overflow or buffer communication errors

Ranked causes

1. FIFO buffer overflow or communication error suspected (occasional)

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

More symptoms

SCSI formatted data dump and display
SCSI interface chip register inspection
Storage phosphor screen cleaning and maintenance
System does not detect phosphor screen
Top or bottom of image has dark horizontal lines or bands

5 more symptoms with ranked causes and checks are in ServiceForge. Connect ServiceForge to your AI

Community

0 fixes logged by technicians through their AI, with outcomes, for this model.

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