110Installation and Service Guide: Color Controller E-85
Troubleshooting
Startup (continued)
Fiery QuickTouch is
discolored and/or no logo
appears on the LCD.
One of the following:
• Faulty Fiery QuickTouch cable or
connections
• Faulty Fiery QuickTouch
• Loose CPU connection(s)
• Faulty CPU(s)
• Faulty motherboard
1 Recheck the Fiery QuickTouch cable connection. If the
problem persists, replace the Fiery QuickTouch (see
page 56).
2 If the problem persists, verify the CPU and CPU fan
connections, and verify that the CPU heatsinks are
securely installed (see page 69).
Test the CPUs by removing the CPU installed in socket
CPU1 and rebooting.
• If the system fails to boot up properly, the CPU in
socket CPU0 is faulty and should be replaced.
• If the system boots up properly, the CPU in socket
CPU0 is good and the CPU that you removed from
socket CPU1 may be faulty. To test this, remove the
CPU from socket CPU0, install the other CPU in
socket CPU0, and reboot. If the system fails to boot
up properly, the CPU currently installed in socket
CPU0 is faulty and should be replaced.
Symptom Possible cause Suggested action
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