103Installation and Service Guide: Color Controller E-85
Troubleshooting
• “Inspecting the system” on page 104
This section provides a more comprehensive checklist that you can use to check the E-85 internally and externally. If
your initial checks fail, you may want to go through this checklist before concluding that you need to replace a cable or
component.
To troubleshoot specific symptoms, see “Table 6: E-85 error messages and conditions” on page 109.
Checking interface cables
Before removing the left panel of the E-85 to check internal components, eliminate the most obvious sources of problems.
Verify the following:
• All interface cables to the system are plugged into the proper connectors on the connector panel of the E-85 (see
Figure 3).
• The power cable is plugged into the wall supply.
• The E-85 is powered on.
• The upper LED next to the 10/100/1000 Mbps network port is blinking to indicate network activity (see page 37).
Figure 44: E-85 connector panel
If all the connectors are properly in place and the power is on, proceed to the next stage of troubleshooting.
Checking internal components
To check the internal components, you must remove the left panel of the E-85.
Use the guidelines and procedures in Replacing parts when disassembling, checking, and reassembling the E-85.
To check internal components
1 Shut down, remove all cables from the back, and then open the E-85 (see page 48).
To access the motherboard, you must remove the left panel.
2 Inspect the inside of the E-85.
• Make sure that no foreign materials have been dropped into the chassis.
• Look for loose boards and reseat each board securely in its connector on the motherboard.
• Look for loose cables. Reseat each connector firmly.
Caution:Before you remove E-85 panels to inspect and handle internal components, see “Precautions” on page 10.
Use standard ESD precautions when handling printed circuit boards and other electronic components.
Important: Before you touch any components inside the E-85, attach a grounding strap to your wrist and
discharge any static electricity on your body by touching a metal part of the E-85.
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