Xerox Phaser 7100

Error Troubleshooting
Phaser 7100 Service Manual Xerox Internal Use Only2-278
5. Check the conductivity between the HVPS1 PWB
and MCU PWB.
Is the connection between P/J551 <=> P/J477
conducting properly?
Go to step 6. Replace the Main
Harness Assembly.
6. Check the voltage supply (+24VDC) to the HVPS2
PWB.
Measure the voltage between the MCU PWB
GND <=> P/J468B-B10.
Is there a voltage (approx. +24VDC) output?
Close the Interlock Switch and check.
Go to step 7. Go to +24VDC Power
Troubleshooting on
page 2-455.
7. Check the voltage supply (+24VDC) to the HVPS1
PWB.
Measure the voltage between the MCU PWB
GND <=> P/J477-9.
Is there a voltage (approx. +24VDC) output?
Close the Interlock Switch and check.
Replace the HVPS2
PWB (REP 12.1 HVPS2
PWB on page 4-202).
Go to step 8.
Go to +24VDC Power
Troubleshooting on
page 2-455.
8. Does the error persist? Replace the HVPS1
PWB (REP 12.13
HVPS1 PWB on
page 4-221).
Go to step 9.
Troubleshooting
complete.
9. Does the error persist? Replace the MCU PWB
(REP 12.4 MCU PWB
on page 4-206).
Troubleshooting
complete.
Troubleshooting Procedure (Continued)
Step Actions and Questions Yes No