Rep 9.2.1 Ess Pwb - Xerox WorkCentre 5222 Service Manual

REP 9.2.1 ESS PWB

Parts List on PL 9.2
Removal
To avoid personal injury or shock, do not perform repair or adjustment with electrical
power applied to the machine.
Damage to electrical components is likely if static discharge reaches components. ESD proce-
dures must be used when removing or replacing PWBs.
Always wear a wrist strap to protect electrical parts from static damage. If a wrist strap is not
available, touch some metallic parts before servicing to discharge the static electricity.
A disabled machine with loss of serialization and billing data occurs if both the ESS PWB with
EPROM and the MCU PWB with EPROM are replaced at the same time.
1. Remove the ESS PWB (PL 9.2).
a. If present, remove Printer PWB
i. Disconnect network connection.
ii. Loosen thumbscrews and pullout Printer PWB to disconnect it from the ESS
PWB.
b. If present, remove FID PWB (PL
c. Loosen screws (2) and remove ESS Cover Assembly
d. Disconnect P/Js form ESS PWB.
e. Remove the screws and remove ESS PWB.
2. If a new ESS PWB will be installed, go to step 3. If the ESS PWB will be reinstalled after
service actions in other areas, reinstall the ESS PWB when appropriate to do so.
Pin breakage occurs if the EPROM is carelessly removed.
3. Remove EPROM from ESS PWB and save for installation on new or original ESS PWB
(Figure 1).
Repairs and Adjustments
REP 9.2.1
WARNING
CAUTION
CAUTION
(PL 9.2).
9.2), or FMO PWB (PL 9.2), or Hard Drive
(PL 9.2).
CAUTION
(PL 9.2).
Figure 1 ESS PWB EPROM Location (j0st40902)
February, 2008
4-54
Launch Version
WorkCentre 5225, 5230