114Installation and Service Guide: Color Controller E-46A
Troubleshooting
• All replaceable parts are:
• Present
• Properly aligned
• Installed securely
• Installed on the appropriate site
• The correct part for the system
• Not visibly damaged
• Chassis and contents have not been tampered with (no unauthorized
additions or changes have been made).
• Chassis does not contain any foreign objects.
Chassis, page 47.
• Motherboard, including components and traces, appears undamaged and
no foreign objects are evident.
• CPU is present, installed in the correct connector, well-seated, and
appears undamaged.
• CPU cooling unit is well-aligned and firmly attached.
• CPU fan (including fan cable) is well-positioned, installed in the correct
connector, and appears undamaged.
• Boards required on the motherboard are present, well-seated, and in the
correct slots.
• Battery is installed.
Motherboard (with the motherboard
replacement dongle), page 59.
Important: When replacing the motherboard,
carefully review the cautions on page 63.
• Each DIMM is well-seated and installed in the correct slot.
• DIMM connectors are not oxidized (reseating removes oxidation).
DIMMs for E-46A, page 69
Each board required is:
• Present
• Installed in the correct slot
• Well-seated
• Appears undamaged
Required cables (if applicable) are:
• Present
• Firmly connected in the correct connectors
• Not visibly damaged
Printer interface board, page 58
CPU is:
• Present
• Well-seated
• Not visibly damaged
The CPU cooling unit is:
• Ready for efficient thermal transfer
• Well-aligned
• Firmly attached
CPU with cooling assembly, page 70
Conditions to verify Part and additional page references
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