Post (Power On Self Test) - Xerox Phaser 8400 Service Manual

POST (Power On Self Test)

When these tests begin the front panel has been initialized. In most cases, if an error
occurs, a text message is displayed on the front panel along with an LED blink code
flashing on all three LEDs (front panel LED, PS LED and PE LED). The sum of the
flashes, blinking in increments of 5, equal the error code. For example, 7 flashes
equals error code 7
POST (Power On Self Test) Error Messages
Front PS, PE
Panel and Front
Error Panel
Code LEDs
01.01 Flutter then
01 blinks
02.01 Flutter then
02 blinks
02.02 Flutter then
02 blinks
03.01 Flutter only
03.02 Flutter then
03 blinks
03.03 Flutter only.
03.04 Flutter then
03 blinks
04.01 Flutter then
04 blinks
04.02 Flutter then
04 blinks
04.03 Flutter then
04 blinks
04.04 Flutter then
04 blinks
05.01 Flutter then
05 blinks
05.02 Flutter only
3-4
.
Description
* Before replacing the electronics module do the following:
1. Unplug all cables.
2. Plug in the AC power cable and power on the electronics
module.
If the error blink pattern has changed, the problem may not be in
the electronics module. Refer to "Electronics Troubleshooting" on
page 4-51.
* Bad error code, POST hard error.
* Failed machine check, POST hard error.
* System panic, POST hard error.
Titan ID read failure, POST soft error.
* Titan mismatch, POST hard error.
Titan version mismatch, POST soft error.
* Titan access failure, POST hard error.
* Bandit ID read failure, POST hard error.
* Bandit ID mismatch, POST hard error.
* Bandit TMVL mismatch, write/read failed, POST hard error.
* Bandit TMVH mismatch, write/read failed, POST hard error.
* Communications error. PLD I/O Board serial, link down/bad
parity, POST hard error.
Communications error. PLD I/O Board serial, mismatch, POST soft
error.
Phaser 8400 Color Printer