Non-Specific Electronics Failure - Xerox C2424 - WorkCentre Color Solid Ink Service Manual

Non-Specific Electronics Failure

1.
Disconnect the Scanner cable from the electronics module and power on.
a.
Double check PS and PE indicators for any error code information. The
system self test is usually able to detect a failure that would cause this
symptom. Looking up the error code may save troubleshooting time.
b.
If the PS & PE indicators are steady and dimly-on, replace the electronics
module, reassembly and retest system.
c.
If the PS & PE indicators are blinking, brightly-on, or totally off, continue
troubleshooting. A dim but steady on condition indicates some firmware was
not properly loaded into a logic circuit.
d.
With power cord connected, touch the metal electronics module to discharge
any static electricity.
e.
Turn off system and wait 30 seconds for power supply capacitors to
discharge.
f.
Unplug power cord and remove system's covers.
g.
Unplug the following electronics module connectors (see "Plug/Jack Locator
Table" on page 10-2):
Power Control to I/O board (J800)
Power Control right (J400)
Printhead data (J130)
Waveamp signal (J790)
Power Control left (J390)
Y-Axis motor (J280)
h. This step removes all other circuits so the electronics module can be tested
alone.
i.
Plug in power cord and turn on power to the system.
j. The PE and PS indicators should flash an error code reporting that the
control panel is missing. If the proper error message is not flashed, replace
the electronics module and retest the system. If PE and PS indicators flash,
continue with troubleshooting.
k.
Turn off system and wait 30 seconds for power supply capacitors to
discharge
l.
Unplug the following electronics module connectors (see "Plug/Jack Locator
Table" on page 10-2):
Power Control to I/O board (J800)
Power Control right (J400)
Printhead data (J130)
Waveamp signal (' J790)
Power Control left (J390)
Y-Axis motor (J280)
This step prevents any faults from the motors, clutches and sensors from
preventing the I/O board and control panel from functioning.
General Troubleshooting 4-67