Xerox WorkCentre 5790 Series Service Manual page 113

03-350, 03-351, 03-354 IOT to Tray 1 and Tray 2 PWB Error
RAP
03-350 The IOT has detected no response from the tray 1 and 2 control PWB to the ping
request.
03-351 Tray 1 and 2 control PWB has detected a feed buffer overflow.
03-354 Communications failure. Tray 1 and 2 control PWB has detected a communications
failure.
Initial Actions
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to GP 14. Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
• Switch off the machine, then switch on the machine,
Xerox® WorkCentre® 5790 Family
WARNING
GP 14.
• Check the fault history file for other 03-XXX fault codes. If the 03-XXX fault codes occur
randomly, the cause may be due to electrical noise. Go to
Procedure
1. Switch off the machine,
nected.
2. Go to Flag 1. Check the harness. Repair as necessary,
3. Go to Flag 2. Check the +3.3V and 0V lines. Refer to:
• P/J271
• 01D +3.3V Distribution RAP.
• 01B 0V Distribution RAP.
4. Switch on the machine,
5. Re-load the software,
6. Install new components as necessary:
• Perform OF7
1.10 Item 2.
• Tray 1 and 2 control PWB,
Figure 1 Circuit diagram
May 2013
2-81
OF10
GP 14. Ensure P/J9 and P/J271 are correctly and securely con-
GP
GP 14. Perform OF7 IOT PWB Diagnostics RAP.
GP 4 Machine Software.
IOT PWB Diagnostics RAP before a new IOT PWB is installed,
PL 7.10 Item 2.
03-350, 03-351, 03-354
intermittent Failure RAP.
7.
PL
Status Indicator RAPs