Mobile X-ray systems · Mobile Art family

Shimadzu MUX100H: troubleshooting and error codes

The ServiceForge knowledge base holds 9 documented symptoms for the Shimadzu MUX100H, with 9 ranked causes, 18 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

Abnormal activity due to NEX-SH

System exhibits abnormal behavior related to NEX-SH component

Ranked causes

1. NEX-SH PCB malfunction or failure (unknown)

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

APR setting does not function as configured

APR parameter set to 0 but behaves as if set to 1

Ranked causes

1. Software bug in version prior to V1.52 (common)

First check

Verify APR setting responds correctly to configuration

Test point: APR parameter setting
Expected: APR operates at configured value (0 or 1, as set)

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

Battery does not charge when unit is plugged in

Unit fails to initiate charging after power connection

Ranked causes

1. Software version prior to V1.52 (common)

First check

Verify software version is V1.52 or higher

Test point: System firmware
Expected: V1.52 or later

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

Battery voltage indicator inaccurate

Battery indicator display does not correspond to actual battery voltage

Ranked causes

1. Software version prior to V1.52 (common)

First check

Recalibrate battery voltage detection

Test point: Battery voltage detection calibration
Expected: As specified in Appendix B of Mux-100H installation manual M503-E312

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

Motor power cuts off prematurely on startup

CPU cuts power to motor too quickly after power-on when Q6, Q7, Q8, Q9 on Mu-Driver 2 pcb are shorted

Ranked causes

1. Q6, Q7, Q8, Q9 shorted on Mu-Driver 2 pcb (rare)

First check

Measure motor runtime after power-on

Test point: Motor operation at startup
Expected: Motor runs continuously during normal operation seconds

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

NEX-SH PCB replacement procedure for MUX-100H and Evolution models

Complete procedure for exchanging NEX-SH PCB on affected systems including preparation, exchange, initialization, date/time adjustment and data restoration

Ranked causes

1. Service bulletin XR-201112 requirement (common)

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

Remove pulley and shaft assembly from column caution

Procedure to safely remove pulley, shaft, collar and bearing assembly from upper part of column during roller support replacement.

Ranked causes

1. Required disassembly step for roller support replacement (unknown)

First check

Undo press screw fixing collar

Test point: Collar press screw
Expected: Screw removed, collar loose

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

Replace roller supports in column assembly caution

Roller supports in the Mux-100(H) column assembly require replacement. Procedure involves tilting column down, removing weight and pulley assembly, detaching old roller supports, and installing new upper and lower roller support assemblies with proper alignment and cushioning.

Ranked causes

1. Worn or damaged roller supports requiring replacement (unknown)

First check

Verify shaft can be smoothly inserted into bearing of pulley before reassembly

Test point: Pulley bearing
Expected: Shaft inserts smoothly without resistance

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

X-ray tube anode continues rotation abnormally patient safety

Anode fails to stop rotating after X-ray exposure; insulating oil temperature rises, causing potential oil leakage from tube assembly and risk of operator or patient burns

Ranked causes

1. Abnormal NEX-SH PCB (common)

First check

Record current DIP switch and jumper settings on installed NEX-SH PCB

Test point: NEX-SH PCB
Expected: All switches and jumpers documented

7 more checks with pass and fail actions, 1 corrective action, and part numbers 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.