Rep 1.3 Ess Chassis; Rep 1.4 3.3 V Lvps Or 5 V Lvps - Xerox DocuColor 1632 Service Manual

REP 1.3 ESS Chassis

Parts List on PL 13.1
Removal
1. If a new PWB will be installed, record NVM values for new PWB.
To avoid personal injury or shock, do not perform repair or adjustment activities with
the power switch on or electrical power applied to the machine.
2. Remove Right Cover (REP 14.3).
3. Remove Top Cover (REP 14.1).
4. Remove Rear Cover (REP 14.2).
PWBís can be damaged by an electrostatic discharge. Observe all ESD procedures to avoid
component damage.
5. Remove ESS PWB (REP 1.12).
6. Remove ESS Chassis (Figure 1).
a. Push Harness Clips (2) down out of Chassis holes
b. Disconnect Harness P/Jís (6).
c. Disconnect Harness P/Jís (2).
d. Disconnect Switch from Chassis.
e. Loosen Screws (2) at front and remove Screws (2) at rear of machine.
f. Lift outer end of Chassis to disconnect Hidden Connector and then remove Chassis.
Screws (2)
Hidden
Connector
Switch
Screw
Harness
P/Jís (2)
Figure 1 Removing ESS Chassis
Replacement
NOTE: If the ESS PWB will be replaced with a new ESS PWB, discard the MAC ROM from the
new ESS PWB and install the MAC ROM removed from the old ESS PWB.
Repairs and Adjustments
REP 1.3, REP 1.4
WARNING
CAUTION
Harness
Screw
Clips
Outer
End
Harness
P/Jís (6)

REP 1.4 3.3 V LVPS or 5 V LVPS

Parts List on PL 9.1
Removal
To avoid personal injury or shock, do not perform repair or adjustment activities with
the power switch on or electrical power applied to the machine.
PWBís can be damaged by an electrostatic discharge. Observe all ESD procedures to avoid
component damage.
1. Remove Rear Cover (REP 14.2).
2. Remove High Voltage Power Supply Chassis
3. Remove appropriate LVPS (Figure
a. Disconnect appropriate Harness P/Jís (2).
b. Remove appropriate Screws (4) and remove LVPS.
Screws (2)
3.3 VDC
LVPS
Screws (2)
Figure 1 Removing LVPS
6/02
4-4
WARNING
CAUTION
(REP 1.6).
1).
Harness P/Jís
Screws
(2)
Harness P/Jís
Prelaunch Training/Review
5 VDC
LVPS
Screws
(2)
DC1632/2240