111Installation and Service Guide: Color Controller E-46A
Troubleshooting
Checking external connections
Before removing the side and front panels of the E-46A to check internal components, eliminate the most obvious
sources of problems. Verify the following:
• All interface cables to the E-46A are plugged into the proper connectors on the E-46A connector panel (see
page 19).
• The power cable is plugged into the wall power outlet.
• The LED on the network port is blinking to indicate network activity (see page 42).
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 side and front panels of the E-46A.
Use the guidelines and procedures in Replacing parts when disassembling, checking, and reassembling the E-46A.
To check internal components
1 Shut down, and then open the E-46A (see page 51).
2 Inspect inside the E-46A
• Make sure that no foreign materials have been dropped into the chassis.
• Make sure that the DVD and hard disk drive data cables are connected to the correct SATA connectors on the
motherboard.
• Look for obviously loose boards and reseat each board securely in its connector on the motherboard.
• Look for obviously loose cables and reseat each cable connector firmly.
• Make sure that each connector is properly aligned with its mating connector. If the pins are offset from each
other, the affected board will not function properly.
3 Reassemble the E-46A and verify its functionality (see page 86).
Before you remove E-46A panels to inspect and handle internal components, see “Precautions” on
page 12. Use standard ESD precautions when handling printed circuit boards and other electronic
components.
Before you touch any components inside the E-46A, attach a grounding strap to your wrist and
discharge any static electricity on your body by touching a metal part of the E-46A.