Xerox WorkCentre 5790 Series Service Manual page 64

01C AC Power RAP
Use this RAP to identify AC power input and output failures.
Procedure
WARNING
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to GP 14. Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
Incorrect voltage may damage the machine. The machine must not be connected to the power
outlet if the voltage is incorrect.
WARNING
Take care when measuring AC mains (line) voltage. Electricity can cause death or injury.
Check the AC mains (line) voltage at the customer power outlet. The voltage measured is
within the electrical power requirements,
Y N
If the voltage is incorrect or the wiring of the main supply is found to be defective, inform
your technical manager and the customer. Do not attempt to repair or adjust the customer
supply.
Check the main power cord for continuity and damage. The main power cord is good.
Y N
Install a new main power cord, PL 1.10 Item
Switch on the machine, GP 14. Go to Flag
PJ22, Figure 1. The voltage measured is within the electrical power requirements,
22.
Y N
Go to Flag 2. Check for the AC voltage at PJ24 on the LVPS,
is present.
Y N
Switch off the machine, GP 14. Remove the power cord from PJ21,
Measure the resistance between ACL and ACN at PJ21 on the LVPS,
resistance reading is greater than 1M Ohms.
Y N
Remove the fuser module. On the fuser module at PJ100 measure the resis-
tance between pin 10 and pins 1, 2, 3 and 4,
an open circuit.
Y N
Install a new fuser module, (35-55 ppm)
10.10 Item 1 and a new LVPS and base module,
Check the wire harness between PJ24 and PJ100,
good.
Y N
Install a new fuser connector assembly, (35-55 ppm)
90 ppm) PL 4.10 Item 9
3.
A B C D
Status Indicator RAPs
01C
CAUTION
GP 22.
10.
1. Measure the voltage at the outlet connection,
Figure 2. The AC voltage
Figure
Figure
Figure 3. The reading is infinity,
PL 10.8 Item 1, (65-90 ppm)
PL 1.10 Item 3.
Figure 2. The harness is
PL 4.15 Item
and a new LVPS and base module, PL 1.10 Item
A B C D
Install a new LVPS and base module,
Install a new LVPS and base module,
Install a new LVPS and base module,
Check the power cords to the output device.
• 1K LCSS, PL 11.124 Item
• 2K LCSS, PL 11.26 Item
• HVF, PL 11.157 Item 4
GP
1.
1. The
Figure 1 Input and output connections
PL
9, (65-
May 2013
2-32
PL 1.10 Item 3.
PL 1.10 Item 3.
PL 1.10 Item 3.
8.
4.
PJ22 power supply for the output device.
PJ21
Xerox® WorkCentre® 5790 Family