U6-4 Nvm Read/Write Cannot Be Executed; U6-5 Cpu Power To Access Nvm Is Not Enough - Xerox WorkCentre 5020 Service Documentation

U6-4 NVM Read/Write Cannot Be Executed

BSD-Reference: CH3.2 (Figure 2)
Explanation
• During NVM read/write, the NVM Ack NG state was detected.
• Or, during NVM repairs, an NVM write error was detected five times.
Procedure
Check each AIOC PWB connector. Each connector is connected securely.
Y N
Connect each connector securely.
Turn the power OFF and ON. U6-4 recurs.
Y N
Completed
Replace the AIOC PWB (PL 8.1) (REP 8.1.1).
Status Indicator RAPS
U6-4, U6-5

U6-5 CPU Power To Access NVM Is Not Enough

BSD-Reference: CH3.2 (Figure 2)
Explanation
At NVM write, the NVM queue full state was detected.
Procedure
Execute diagnostics [29-49] to check the ROM version.
Mode) The ROM is the latest version.
Y N
Upgrade the ROM to the latest version.
Replace the AIOC PWB (PL 8.1) (REP 8.1.1).
July, 2007
2-30
(How to Enter the Diagnostic
Initial Issue
WorkCentre 5020