General Troubleshooting 4-61d. With power cord connected, touch the metal electronics module to dischargeany static electricity. ESD damage to the system may occur if staticelectricity is discharged to system electronics.e. Turn off system and wait 30 seconds for power supply capacitors todischarge. Damage to circuits within the electronics module may occur if thepower supply capacitors are not allowed to fully discharge.f. Unplug power cord and remove system's covers. Use caution around motors,pulleys and live AC connections when working with the system covers off.g. Examine system for loose grounding connections, especially the groundstrap on the Y-axis motor. Eliminate the possibility of internally generatedESD from affecting system.h. Plug in all cables removed during service. Trace through all service stepsperformed to reattach any cables that were unplugged duringtroubleshooting.i. Attach system covers.j. Perform full test of system.System Continuously Resets or Resets Unexpectedlya. Check the main AC voltage. For troubleshooting AC voltages, see page 4-72.b. Disconnect the network cable, if this corrects the problem go to "NetworkProblems" on page 4-81.c. Try entering Service Diagnostics, see page 4-4.d. If you are able to enter service diagnostics, view the fault history for anyerror codes that may be causing the system to reboot. Troubleshoot any errorcodes reported.e. Turn the system off and unplug the document feeder. If the system powers onnormally, replace the document feeder.f. Turn the system off and unplug the scanner. If the system powers onnormally, replace the scanner.g. Replace the electronics module.Control Panel Is Blank and the PS and PE Indicators are Flashing anError CodeThe system has detected a fault condition but can't display a message on theLCD. Some portion of the chain of devices used to drive the LCD may bedefective since an error message is not displayed.1. See "Power-Up Error Messages and LED Codes" on page 3-3 for definitions andsolutions.
