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041-327 MCU PWB F4 Open RAP
BSD-ON:
BSD 1.9 - Power Interlock Switching (2 of 2)
BSD-ON:
BSD 10.2 - Fusing
BSD-ON:
BSD 10.4 - Exit 2 Drive
Fuse 4 on the MCU PWB has blown.
NOTE: Remove the cause of Fuse meltdown before replacing the MCU PWB.
When turning the power OFF, turn OFF the power switch first and then the main power switch.
Chip fuses on the MCU PWB seldom fail because of an internal MCU problem. The cause is
almost always a short circuit in the wiring or components fed by the fuse. You MUST determine
the source of the short before replacing the MCU PWB.
Procedure
1.
Check the Fuser Fan
(PL
4.1) circuit +24 Volt
age, and then replace the faulty parts or repair the circuits.
2.
Check the Exit Gate Solenoid
(PL
17.4) circuit +24 Volt
overvoltage, and then replace the faulty parts or repair the circuits.
3.
Turn the power OFF and replace the MCU PWB
Initial Issue
WorkCentre 5335 Family Service Documentation
CAUTION
IOT wirenets
for overcurrent and overvolt-
IOT wirenets
for overcurrent and
(PL
18.2).
BUS Updated 12/2011
041-328 MCU PWB F5 Open RAP
BSD-ON:
BSD 1.9 - Power Interlock Switching (2 of 2)
BSD-ON:
BSD 8.1 - Trays 1~5 Paper Feeding
BSD-ON:
BSD 10.6 Exit 1 Drive/OCT Control
Fuse 5 on the MCU PWB has blown.
NOTE: Remove the cause of Fuse meltdown before replacing the MCU PWB.
When turning the power OFF, turn OFF the power switch first and then the main power switch.
Chip fuses on the MCU PWB seldom fail because of an internal MCU problem. The cause is
almost always a short circuit in the wiring or components fed by the fuse. You MUST determine
the source of the short before replacing the MCU PWB.
Procedure
1.
Check the MSI Feed Solenoid
overvoltage, and then replace the faulty parts or repair the circuits.
2.
Check the Offset Motor
(PL
17.1) circuit +24 Volt
voltage, and then replace the faulty parts or repair the circuits.
3.
Turn the power OFF and replace the MCU PWB
07/2011
2-757
CAUTION
(PL
13.2) circuit +24 Volt
IOT wirenets
for overcurrent and
IOT wirenets
for overcurrent and over-
(PL
18.2).
Status Indicator RAPs
041-327, 041-328
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