Power-Up Error Messages And Led Codes; Bist Error Reporting - Xerox WorkCentre C2424DX Service Manual

Power-Up Error Messages and LED Codes

The system has three sets of tests that are run when first powered on:
Built-In Self Tests (BIST)
Power On Self Tests (POST)
Print Engine Self Tests (PEST)
Note
BIST and POST errors are not stored in the fault history logs.

BIST Error Reporting

BIST verifies basic electronics module CPU operation and reports failures by
utilizing the rear interface panel PS and PE LEDs. These tests occur immediately at
power-up, before POST tests are run or the control panel is initialized.
The following table defines the blink patterns associated with a failure.
BIST Error Reporting Blink Pattern Definition Table
PE LED PS LED
Off or 1 Off or 1
Blink, and Blink, and
then off then off
On Solid On Solid
(dimly) (dimly)
Off PS and
control
panel 1/2
sec. blink
1 Rapid
blinking
2 Rapid
blinking
Error Messages and Codes
Description
The power supply could not remain regulated when DC power
was applied so it was shut down.
Follow the troubleshooting procedures for electrical shorts (see
"Electrical Troubleshooting" on page 4-58 and check the power
supply fuses).
Initialization failure. The system is held in reset mode. This can
be caused by an electronics module fault or a +3.3 V power
supply regulation failure (see "Electrical Troubleshooting" on
page 4-58). Also, see "Verifying Power Supply Operation - Print
Engine" on page 4-71.
Boot loader memory test failure. Ensure the systems RAM chips
are properly seated and that the correct RAM type for this
system is installed. For specifications on approved RAM types
for this system, see "System Specifications" on page 1-12.
CPU bridge and/or PCI bus is not communicating. Reboot the
printer, if the error still occurs, replace the electronics module.
ROM not responding. Reboot the printer, if the error still occurs,
replace the electronics module.
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