1/05
8e-6
DocuColor 12/DCCS50
40-284, 40-285 / 40-286
Reissue
Electronic Pre-Collation (EPC)
40-284 EPC Hard Drive Detection RAP
Control Logic did not detect the presence of an EPC Hard Drive.
Initial Actions
Refer to EPC BSDs (Chain 01) and EPC BSDs (Chain 03) for this procedure.
Initialize the EPC (GP 1).
Procedure
There is +5VDC from pin 4 to pin 3 of P656 on the EPC Hard Drive.
YN
There is +5VDC from pin 1 to pin 2 of P653 on
the
EPC PWB.
YN
There is +5VDC from pin 8 to pin 5 of P640 on
the
EPC PWB.
YN
Go to Fl
ag 2 and Fl
ag 3 on BSD 1.1 (EPC DC Power). Check for an open circuit
or an open fuse F6. If the wires are OK, replace the IOT LVPS (PL 9.3).
Replace the EPC PWB (PL 2
0.1).
Go to Flag 4 on BSD
1.1 (EPC DC Power). check for an open circuit.
There is +12VDC from pin 1 to pin 2 of P656 on th
e EPC Hard Drive.
YN
There is +12VDC from pin 4 to pin 3 of P653 o
n th
e EPC PWB.
YN
There is +12VDC from pin 1 to pin 4 of P640 o
n th
e EPC PWB.
YN
Go to Fl
ag 1 and Fla
g 2 on BSD 1.1 (EPC DC Power). Check for an open cir-
cuit. If the wires are OK, replace the IOT LVPS (PL 9.
3).
Replace the EPC PWB (PL 2
0.1).
Go to Flag 4 on BSD
1.1 (EPC DC Power). check for an open circuit.
Reseat the EPC Hard Drive Cable on the Hard Drive and on the EPC PWB. Switch the power
off t
hen on. If the problem continues, replace the following parts in the order listed until the
problem is resolved:
• EPC Hard Drive Cable (P
L 2
0.1)
• EPC Hard Drive (PL 20
.1)
• EPC PWB (PL 20.1)
40-285 / 40-286 EPC Memory Failure RAP
40-285: Page Buffer read/write check error
40-286: DIMM
Failure
Initial Actions
• Switch the power off then on.
• Initialize the EPC (GP 1).
Procedure
If the problem continues, reseat the Memory PWB (PL 20.1). If the problem persists, replace
the Memory PWB. If the fault remains, replace the EPC PWB (PL 20.1).
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