3-158
Phaser 7500 Printer Service Manual
Error Messages and Codes
2
Perform the following steps:
■
Check the Flat Cable between the
MCU PWB J554 and the LPH Rear
PWB (K) J558 for open circuit,
short circuit, and poor contact.
■
Check the Flat Cable between the
LPH H PWB (K) J566 and the LPH
(K) J574 for open circuit, short
circuit, and poor contact
(connection within the LPH Unit).
■
Check the connector (P/J578)
between the LPH Rear PWB (K)
and the LPH H PWB (K) for
damage and debris.
■
Check the LPH Unit (K) for
improper installation.
■
Perform the
LED EEPROM
test in
Diagnostics.
Are they normal, without any short
circuits, poor contacts, and etc.?
Replace the
following parts
in sequence:
■
LPH Unit (K)
(REP 2.1,
)
■
LPH Cable
Assembly
■
LPH Rear
PWB (REP
2.4,
)
■
MCU PWB
(REP 18.12,
)
Repair the
sections that
have short
circuits and
poor contacts.
Troubleshooting Procedure (Continued)
Step
Actions and Questions
Yes
No
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: ......