Canon imagePRESS C800 Series, Technical & Service Manual

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Comprehensive system inspection
If the previous checks did not solve the problem, perform a component inspection.
A comprehensive inspection allows you to verify that each hardware component is properly
installed and configured. It also prevents the unnecessary replacement of expensive components.
Component Actions
External connectors • See
Check external connections on page 121
• Cables, cable connectors, and mating connectors are undamaged.
Internal components All replaceable parts are:
• Present
• Properly aligned
• Installed securely
• Installed on the appropriate site
• The correct part for the system
• Appear undamaged
Chassis and contents have not been tampered with.
Chassis does not contain any foreign objects.
Motherboard • Motherboard, including components and traces, appear undamaged,
and no foreign objects are evident
• CPU is present, well-seated, and appears undamaged.
• CPU cooling assembly is well-aligned and firmly attached.
• Each fan (including fan cable) is well-positioned (not upside down),
installed in the correct connector (CPU_FAN1), and appears undam-
aged.
• Boards required on the motherboard are present, well-seated, and in
the correct slots.
• Battery is installed.
DDR3 modules • Each DIMM is well-seated.
• Each DIMM is of the same brand and type.
• Each DIMM is seated in the correct port. Pairs DIMM1/DIMM3 and
DIMM2/DIMM4
PCI boards 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
• Appear undamaged
4
Comprehensive system inspection
Chapter 10 - Troubleshooting 123