Xerox WorkCentre 5790 Series Service Manual page 422

LED 1
LED 2
Figure 1 LED location
Status Indicator RAPs
11B-120, 11C-120
11C-120 1K LCSS Power Distribution RAP
The 1K LCSS has an integral power supply providing +24V and +5V supplies to the 1K LCSS
PWB. The AC power for the 1K LCSS power supply comes from the LVPS and base module of
the machine.
Procedure
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to GP
death or injury. Moving parts can cause injury.
Take care when measuring AC mains (line) voltage. Electricity can cause death or injury.
Do not connect the finisher power cord directly to the AC wall outlet. The finisher cannot oper-
ate without the machine. The machine controls the distribution of electricity to the finisher for
correct power on and power off sequencing.
Close or cheat all the 1K LCSS interlocks.
Y N
Go to Flag 2. +24V is available at
and 3.
Y N
Disconnect P/J1. +24V is available at
pins 5 and 3 on the end of the harness.
Y N
Go to Flag 1. Disconnect the 1K LCSS power cord from PJ22 on the
Control Assembly. ACL is available at PJ22 between pins 1 and 3 on the
LVPS and base module.
Y N
Go to the 01C
Remove the 1K LCSS,
supply module away from the 1K LCSS frame. Go to
between PJ22 and CN1. The wiring is good.
Y N
Repair the wiring.
Install a new power supply module,
Perform the steps that follow:
• Check for a short circuit or an overload in the wiring or components connected
to the +24V on the 1K LCSS PWB. Refer to
• Perform the 11F-120
1K LCSS PWB, PL 11.124 Item
+24 V is available at P/J5
Y N
Go to the 11-300-120, 11-302-120, 11-303-120
Perform the steps that follow:
A
May 2013
2-390
WARNING
14. Disconnect the power cord. Electricity can cause
WARNING
CAUTION
LED 2 on the 1K LCSS PWB is illuminated.
P/J1 between pins 1 and 2, also between pins 5
P/J1 between pins 1 and 2, also between
AC Power RAP.
REP 11.12-120. Loosen the 2 screws and lift the power
Flag
PL 11.124 Item 2.
GP 7.
1K LCSS PWB Damage RAP. If necessary install a new
1.
pin 3 on the 1K LCSS PWB.
Interlocks RAP.
Xerox® WorkCentre® 5790 Family
Power and
1. Check the wiring