2-86 Service Manual
5060-4xx
927 error code
RIP Fan service check
930 error code
LVPS
This problem with the fuser circuits is usually the zero crossover signal from the LVPS not working correctly.
Step Actions and questions Yes No
1 Turn the power off and manually spin the fan and check
that it rotates freely.
Does the fan rotate freely?
Go to step 2 Replace the “RIP
fan” on
page 4-69
2
Check the RIP fan cable connection to the system
board, J3 for correct installation.
Is the cable installed correctly?
Go to step 3 Install the cable
correctly
3
Disconnect the RIP fan from J3 on the system board
and check the voltages on J3.
Are the voltages correct?
Replace the “RIP
fan” on
page 4-69
Replace the
“System board”
on page 4-72
Step Action and questions Yes No
1 LVPS cable - check the LVPS cable to J33 on the
system board to make sure it is seated correctly. Go to
“System board” on page 5-8.
Is the cable seated correctly?
Go to step 2 Install the cable
correctly
2
Voltage checks - Disconnect J10 from the system
board assembly. Go to “System board” on page 5-8.
Check the voltage at J33, on the cable. It measures
approximately +3.7 V dc.
Is the voltage correct?
Go to step 3 Replace the
following FRUs in
order:
1. “LVPS
assembly”
on page 4-46
2. “System
board” on
page 4-72
3
Is 930 error still displayed? Replace the
“LVPS
assembly” on
page 4-46
Problem solved
Pin Fan on Fan off Fan
disconnected
Fan switch on
Fan
disconnected
Fan switch off
J3-1 +1.6 V dc +3.3 V dc +3.3 V dc +3.3 V dc
J3-20 V0 V0 V 0 V
J3-3 +1.9 V dc 0 V dc 0 V +2 V dc
J3-4 +24 V dc +24 V dc +24 V dc +24 V dc
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