3-98
Phaser 7500 Printer Service Manual
Error Messages and Codes
MCU PWB F7 Blows
Fuse 7 on the MCU PWB has opened.
Note
Remove the cause of Fuse failure before replacing the MCU PWB.
Applicable Chain-Link Code
•
041-330
: PWBA MCU F7 Fuse Break Fail
Initial Actions
•
Power cycle the printer.
•
If the problem persists, follow the procedure below.
1. Check the following parts circuits for over current and overvoltage, grounded
wires, and then replace the faulty parts or repair the circuits, and replace the
Fuse.
•
Drive Fan (REP 18.15,
•
HV Fan (REP 4.3,
•
1st BTR Contact Retract Clutch
•
Takeaway Clutch (REP 15, 1,
2. Replace the MCU PWB (REP 18.12,
Troubleshooting Reference
Applicable Parts
Wiring and Plug/Jack Map References
■
1st BTR Contact Retract
Clutch, PL3.2.12
■
HV Fan, PL4.3.4
■
Takeaway Clutch, PL15.1.1
■
MCU PWB, PL18.3.6
■
Drive Fan, PL18.3.17
■
Fuse
Summary of Contents for PHASER 7500
Page 1: ...Phaser 7500 Color Printer Phaser 7500 Service Manual Xerox Internal Use Only ...
Page 2: ......
Page 60: ...1 30 Phaser 7500 Printer Service Manual General Information ...
Page 448: ...3 310 Phaser 7500 Printer Service Manual Error Messages and Codes ...
Page 484: ...4 36 Phaser 7500 Printer Service Manual General Troubleshooting ...
Page 544: ...5 60 Phaser 7500 Printer Service Manual Print Quality Troubleshooting ...
Page 545: ...6 Chapter Adjustments and Calibrations In this chapter Adjustments Calibrations ...
Page 554: ...6 10 Phaser 7500 Printer Service Manual Adjustments and Calibrations ...
Page 562: ...7 8 Phaser 7500 Printer Service Manual Cleaning and Maintenance ...
Page 900: ...9 118 Phaser 7500 Printer Service Manual Parts List ...
Page 958: ...10 58 Phaser 7500 Printer Service Manual Plug Jack and Wiring Diagrams ...
Page 980: ...11 22 Phaser 7500 Printer Service Manual Reference ...
Page 990: ...I 10 Phaser 7500 Printer Service Manual Index ...
Page 991: ......