10/2006
6-36
Phaser 8510/8560MFP Multifunction Product
Electrical Troubleshooting
Initial Issue
Diagnostics
Electrical Troubleshooting
The Electronics Module contains the power supply, main board containing the image proces-
sor, and power control boards. The Backframe contains the Scanner Power Supply and the
Exit Module Control Board. If a component of the Electronics Module fails, and service is nec-
essary, replace the entire Electronics Module, with the exception of the NVRAM, RAM memory,
the Configuration Card, and either the Flash or Hard drive; no individual board troubleshooting
procedures or tests are necessary.
NOTE: If the system encounters certain fault conditions, the system may reboot up to three
times before displaying an error code. This is an attempt to correct the problem and reduce the
number of unnecessary service calls.
Following the suggested troubleshooting procedures in the specified sequence generally pro-
vides better test coverage than performing tests in a different order.
If either the Scanner turns on or the Exit Module initializes, the Scanner Power Supply is oper-
ational. If the Scanner turns on, but the Exit Module doesn’t initialize properly, then the Power
Supply may be operational, but the Exit Module Control Board may be malfunctioning.
NOTE: The image processor board enables the Scanner Power Supply and communicates
with the Exit Module, Scanner, DADF, and Control Panel. A faulty image processor controller
board can make it appear as if other subsystems are at fault.
System Ground Integrity
Intermittent or missing ground connections can result in system interference. As examples:
•
Blank or intermittent Control Panel display
•
I/O Board errors
•
False jam reporting
•
Erroneous thermistor readings
•
Damage to the electrical boards
Key Ground Connections
The following illustration shows the grounding points in the Print Engine. There is also a ground
point on the Backframe. Check that these grounding points are in contact with the frame.
Figure 1 System Grounds
Summary of Contents for PHASER 8560MFP
Page 1: ...701P01133 October 2006 Phaser 8560MFP Multifunction Product Service Documentation...
Page 4: ...10 2006 iv Phaser 8510 8560MFP Multifunction Product Initial Issue Introduction...
Page 22: ...10 2006 1 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Service Call Procedures...
Page 28: ...10 2006 2 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Error Messages and Codes...
Page 84: ...10 2006 3 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Image Quality...
Page 116: ...10 2006 4 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Repairs and Adjustments...
Page 194: ...10 2006 5 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Parts List...
Page 204: ...10 2006 6 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Diagnostics...
Page 256: ...10 2006 7 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Wiring Data...
Page 274: ...10 2006 8 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Theory of Operation...
