Xerox Phaser 7100

Error Troubleshooting
Phaser 7100 Service Manual Xerox Internal Use Only2-444
6. Check the voltage supply (+3.3VDC) to the
Feeder PWB.
Measure the voltage between the Feeder PWB
GND <=> P/J419-4.
Is there a voltage (approx. +3.3VDC) output?
Replace the Feeder
PWB (REP 15.22
Feeder PWB on
page 4-285).
Go to step 7.
7. Check the voltage output (+3.3VDC) from the
MCU PWB.
Measure the voltage between the MCU PWB
GND <=> P/J461-7.
Is there a voltage (approx. +3.3VDC) output?
Go to step 8. Go to +3.3VDC Power
Troubleshooting on
page 2-458.
8. Check the connection between the Feeder PWB
and MCU PWB.
Are the connectors P/J419, P/J4611, and P/J461
connected securely?
Replace the
following parts in
sequence:
•Option Feeder 1
Relay Harness
Assembly
• Option Harness
Assembly
Connect the
connectors P/J419,
P/J4611, and P/J461.
Troubleshooting Procedure (Continued)
Step Actions and Questions Yes No