January 2016
4-8
WorkCentre WorkCentre 4150/4250/4260WorkCentre 4150/4250/42604150/
REP 1.5
Repairs and Adjustments
REP 1.5 Main PWB (4250/4260/4265)
Parts List on PL 1.15, PL 1.20
Removal
NOTE: This procedure should only be performed on the 4250/4260/4265 machines. For the
4150 procedure, refer to the table of contents.
NOTE: The WorkCentre 4250 and 4260 Main PWBs look similar, but have different software
versions (4250 software begins with 15, 4260 software begins with 30). These PWBs are not
interchangeable.
WARNING
Switch off the electricity to the machine. Disconnect the power cord from the customer
supply while performing tasks that do not need electricity. Electricity can cause death or
injury. Moving parts can cause injury.
WARNING
Take care during this procedure. Sharp edges may be present that can cause injury.
CAUTION
Before performing this procedure, refer to General Disassembly Precautions, GP 10.
CAUTION
Ensure that E.S.D. procedures are observed during the removal and installation of the main
PWB. Make a visual check to ensure that the pins are fully inserted, without being damaged.
1. Power off the machine. Disconnect the power cord.
2. Disconnect any connectors on the left side of the machine that may be attached to the
Main PWB: ethernet connection, etc.
3. If a new main PWB is to be installed, go to GP 3 Machine Status. If possible, print the fol-
lowing reports:
• System Configuration.
• Local Address Book Members.
• Group Address Book Members.
4. Remove the Rear Cover, PL 28.10 Item 6:
a. Dislocate the two chained locating pins at the bottom of the Rear Cover.
b. Remove the six mounting screws.
5. If installed, remove the OSOK, PL 1.15 Item 23.
6. Remove the SIM PWB (Figure 1).
Figure 1 Removing the SIM PWB (4265)
1
Disconnect CN35 on the Main PWB.
2
Remove the two mounting screws,
and remove the SIM PWB.
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