Finisher/Sorter Communication Failure Rap - Xerox DocuColor 12/DCCS50 Service Manual

3-319 Finisher/Sorter Communication Failure RAP

The 3-319 Fault Code indicates a communication failure between the IOT PWB and the Fin-
isher PWB.
Initial Actions
Refer to BSD12.4 PWB Communications (Finisher) and to BSD 12.7, Monitoring, in this proce-
dure.
Procedure
PO/PO the machine. Fault Code 3-319 is still declared.
Y N
If an intermittent is suspected, perform the following:
• Check the connections to the IOT CPU PWB and the Finisher PWB, and the inter-
connecting harness
• Reseat P/J405 at the IOT CPU PWB, P/J1027, and
and P880, the Double Plug
Check for +5 VDC at P/J1026-3. +5 VDC is measured at P/J1026-2 on the Finisher PWB.
Y N
Perform the following:
• Go to +5VDC Wire Nets and check for an open/short circuit
• Go to the +5 VDC Power (IOT LVPS) RAP
Check for +24 VDC at P/J1026-1 on the Finisher PWB. +24 VDC is measured at
4.
Y N
Perform the following:
• Go to +24VDC-1 Wire Net and check for an open/short circuit
• Go to the +24 VDC Power (IOT LVPS) RAP
Perform the following:
• Go to Flag 1 on BSD 12.4, and check the following wires for an open/short circuit:
– Check the wire between Mailbox Control PWB P/J1027-1 and IOT CPU PWB
J405-1
– Check the wire between Mailbox Control PWB P/J1027-2 and IOT CPU PWB
J405-2
– Check the wire between Mailbox Control PWB P/J1027-3 and IOT CPU PWB
J405-3
– Check the wire between Mailbox Control PWB P/J1027-4 and IOT CPU PWB
J405-4
• Replace the Finisher PWB (PL 18.4)
• Replace the IOT CPU PWB (PL 9.2)
Reissue
DocuColor 12/DCCS50
P/J1026 at the Finisher PWB,
P/J1026 -
P/
P/
P/
P/
1/05
8d-3
3-319 Finisher/Sorter Communication Failure RAP
Finisher/Sorter