Xerox WorkCentre Pro 423 Service Manual page 150

WorkCentre Pro 423/428
U9-31 MCU/SW PWB Failure (BSD 3.1C)
If Power OFF/ON does not solve the problem, replace the
MCU/SW PWB (PL7.2).
U9-32 MCU/SW PWB Failure (BSD 3.1C)
If Power OFF/ON does not solve the problem, replace the
MCU/SW PWB (PL7.2).
U9-33 MCU/SW PWB Failure (BSD 3.1C)
If Power OFF/ON does not solve the problem, replace the
MCU/SW PWB (PL7.2).
U9-41 MCU/SW PWB Failure (BSD 3.1C)
If Power OFF/ON does not solve the problem, replace the
MCU/SW PWB (PL7.2).
H5-61 FINISHER Interface Abnormal (BSD 3.1E)
Check between the MCU/SW PWB and FINISHER CONT PWB
for an open wire or poor contact. If no problem is found, replace
the MCU/SW PWB (PL7.2) and FINISHER CONT PWB
(PL13.16) in this order.
H5-62 FINISHER Interface Abnormal (BSD 3.1E)
Check between the MCU/SW PWB and FINISHER CONT PWB
for an open wire or poor contact. If no problem is found, replace
the MCU/SW PWB (PL7.2) and FINISHER CONT PWB
(PL13.16) in this order.
H5-63 FINISHER Interface Abnormal (BSD 3.1E)
Check between the MCU/SW PWB and FINISHER CONT PWB
for an open wire or poor contact. If no problem is found, replace
the MCU/SW PWB (PL7.2) and FINISHER CONT PWB
(PL13.16) in this order.
H5-64 FINISHER Interface Abnormal (BSD 3.1E)
Check between the MCU/SW PWB and FINISHER CONT PWB
for an open wire or poor contact. If no problem is found, replace
the MCU/SW PWB (PL7.2) and FINISHER CONT PWB
(PL13.16) in this order.
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H5-81 FINISHER Failure (BSD 12.8)
Enter Diag. Mode and execute Chain12 Func22.
Does the COMPILE MOTOR rotate?
Y N
Execute Chain12 Func22. Is each voltage +12 VDC
between FINISHER CONT PWB CN12-1/2/3/4(+) and
GND(-) ?
Y N
Is the voltage +24 VDC between the FINISHER
CONT PWB CN1-1(+) and GND(-) ?
Y N
Perform +24VDC FIP.
Replace the FINISHER CONT PWB. (PL13.16)
Check between the FINISHER
COMPILEMOTOR for an open wire or poor contact. If no
problem is found, replace the COMPILE MOTOR.
(PL13.12)
Execute Chain12 Func5. Turn on and off the TAMPER HOME
POSITION SENSOR with the tamper.
Does the display change (H/L)?
Y N
Perform the General-purpose transmission sensor FIP.
Check the actuator at the TAMPER HOME POSITION SENSOR.
If no problem is found, replace the FINISHER CONT PWB
(PL13.16).
CHAPTER 2 TROUBLESHOOTING
H5-82 FINISHER Failure (BSD 12.10)
Are the TOP COVER and FRONT DOOR closed securely?
Y N
Close the TOP COVER or FRONT DOOR.
Enter Diag. Mode and execute Chain12 Func29.
Does the STAPLE MOTOR rotate?
Y N
Check between CN10 of the FINISHER CONT PWB and
the STAPLER UNIT for an open wire or poor contact.
The connection is normal?
Y N
Repair an open wire or poor contact.
Replace the STAPLE HEAD. (PL13.3)
CONT PWB and Turn the power off and remove the STAPLE HEAD. Turn the
power on with the connector connected and execute Chain12
Func16. Turn the STAPLE MOTOR gear manually.
Does the display change (H/L)?
Y N
Check between CN10 of the FINISHER CONT PWB and
STAPLER UNIT for an open wire or poor contact.
The connection is normal.
Y N
Repair an open wire or poor contact.
Replace the STAPLE HEAD. (PL13.3)
Replace the MCU/SW PWB. (PL7.2)
Level 2 Troubleshooting