Gp 20 Long Boot Diagnostic Tests - Xerox workcentre 5335 series Service Manual

GP 20 Long Boot Diagnostic Tests

Purpose
This procedure steps through the Power On Self Test portion of the machine boot-up sequence
to diagnose problems with the ESS PWB and installed memory, etc.
Procedure
Turn the power ON while pressing <Energy Saver> + <Start> to diagnose any failures in the
ESS PWB and installed memory, etc. This takes approx. 5 mins to complete.
1. Turning the power ON while pressing <Energy Saver> + <Start> displays "-- BOOT
MODE -- LONGDIAG MODE" at the top left side and starts the Diag.
NOTE:
If an error is detected, the Error Code (Chain-Link) will be displayed on the Control Panel.
(Unlike in the Download Diag, the diagnostic result of each item is not displayed.)
2. When the Diag has completed successfully, "-BOOT MODE-" and then "ALL OK" are
displayed at the top left side. Turn OFF the machine.
Diagnostics Contents
The following shows the Diag Items and the Fail Codes that are displayed for "NG" Diagnostic
Results.
Table 1 NG Diagnostic Results
Test Name Test Contents (Overview)
1 Standard RAM Test Standard RAM read/write verify test
2 Extension RAM Test Extension RAM read/write verify test
3 Standard ROM Test Standard ROM checksum test
4 NVRAM Test NVRAM read/write verify test
5 UI Cable Disconnect Disconnect detection of UI Cable
Detection
6 MCU Connection Detects the connection with the IOT
Detection
7 Font ROM Test Standard Font ROM checksum test
8 EEPROM Test EEPROM read/write verify test
EEPROM expected value data test
9 Timer Test Timer operation check (RTC) test
10 Page Memory Test Page Memory Device Test
11 IIT Test IIT device test
12 USB 1.0 Host Test USB 1.1 Host device test
13 USB 2.0 Host Test USB 2.0 Host device test
14 USB 2.0 Device Test USB 2.0 Target device test
Initial Issue
WorkCentre 5335 Family Service Documentation
Test Name
15 HDD Test
16 Image Log Test
17 PDF High Compres-
sion PDF Test
18 UI Test
19 Standard ROM Write
Mode Test
UI Panel
Display (Fault
Code)
116-315
116-316
116-317
116-323
016-326
016-328
116-380
016-351
016-350
116-364
016-315
016-371
016-364
016-365
07/2011
6-57
BUS Updated 12/2011
Table 1 NG Diagnostic Results
Test Contents (Overview)
HDD device test
UFS test
Image EXT PWB test
Image COMP PWB test
UI device test
QRY test
General Procedures & Information
UI Panel
Display (Fault
Code)
016-366
016-367
016-368
016-362
016-336
GP 20