Controller Related Malfunctions Rap - Xerox FaxCentre 2121 Service Manual

Status Indicator RAPs

12 Controller Related Malfunctions RAP

Switch off the electricity to the machine. Disconnect the power cord from the customer supply
while performing tasks that do not need electricity. Electricity can cause death or injury. Moving
parts can cause injury.
Description
The following are controller related malfunctions and failures:
• Engine Initialization failure.
• Engine I/F failure.
• ROM Malfunction.
• DRAM Malfunction.
• EEPROM Malfunction.
• Video transfer malfunction.
• Data decompression failure.
• Video output failure.
• Unsupported engine failure.
Checks and Causes
1. Check the flat cable connections
2. Check the harness between PJ1 on the
Main PBAand PJ4201 in the CPU (Wiring
Diagram 1).
2-14
WARNING
Table 11: Controller Related Malfunction
1. Tighten loose connections or correct and re-
place connections as necessary.
2. Tighten if the connection is loose, or correct
as necessary.
3. If Malfunctions still occur, Install a new CPU
(PL 5).
11/06
Solutions
FaxCentre 2121/2121L