Xerox DocuColor 12/DCCS50 User Manual

1/05
2-7
DocuColor 12/DCCS50
+5 VDC Power (IIT/IPS) RAP, +12 VDC Power (IOT
Status Indicator RAPs
Reissue
+5 VDC Power (IIT/IPS) RAP
This RAP is used to repair failures in the +5 VDC Power circuit (IIT LVPS) when directed by
another RAP.
Initial Actions
• Use BSD 1.3 in the following procedure:
Procedure
Disconnect J5. Go to Flag 1 on BSD 1.3, and check for ACH between J5-3 and J5-2 on the
harness side. ACH is measures between J5-3 a
nd J5-2 on the harness side.
YN
Go to the A
C P
ower RAP.
Go to Flag 2 on BSD
1.3. Less than +1 VDC is measured at P/J11A-1.
YN
Go to Fl
ag 3 on BSD
1.3. Less than +1 VDC is measured at P/J11A-13.
YN
Perform the following:
• Replace the IOT Drive PWB (PL 9.
2).
•
Replace the IOT CPU PWB (PL 9.
2).
Replace the AC Driver PWB (PL 9.3).
Go to Flag 4 on BSD
1.3, and perform the following:
1. Check the wiring at P/J33 f
or open/short circuits (between the IIT/IPS LVPS and the
DADF, and the PRE IPS).
2. Replace the IIT LVPS (PL 3.
5).
+12 VDC Power (IOT LVPS) RAP
This RAP is used to repair short circuits in the +12 VDC Power circuit when directed by another
RAP.
Initial Actions
• Use BSD 1.2 in the following procedure:
Procedure
Disconnect P/J22 from the IOT LVPS and check for +12 VDC at P/J22-1 on the IOT LVPS.
+12 VDC at P/J22 on
the IOT LVPS checked OK.
YN
Replace the IOT LVPS (PL 9.3).
Disconnect the following connectors from their respective PWBs:
• P
/J395 from the Half Tone PWB (PL 9.2).
• P/J4
11 fro
m the IOT Drive PWB (PL 9.2).
Reconnect P/J22 t
o the IOT LVPS, and check for +12 VDC at P/J22-1. +12 VDC is mea-
sured at P/J22
-1.
YN
Go to F
lag 6 on BS
D 1.2, and check the wires for a short circuit to ground.
Measure for +12 VDC at P/J22-1 aft
er reconnecting P/J395, and P/J411 one by one to their
respective PWBs. Note what PWB, if any, loads down the +12 VDC. +12 VDC was OK after
reconn
ecting P/J395 to the Half Tone PWB.
YN
Perform the following:
• Go to Wirenet +12/-12V DC involving the Half Tone PWB and disconnect all compo-
nents from the Half Tone PWB which are supplied with +12 VDC.
• Reconnect the components one-by-one to the Hal
f T
one PWB, while checking which
component/circuit loads down the +12 VDC.
• Check the wiring to the suspected component for an open/short circuit.
• Replace the component, which loads down the +12 VDC.
Perform the following:
• Go to Wirenet +12/-12V DC involving the
IOT Drive PWB and disconnect all components
from the IOT Drive PWB which are driven by +12 VDC (and not checked earlier in this
RAP).
• Reconnect the components one-by-one to the IOT
Drive PW
B, while checking which com-
ponent/circuit loads down the +12 VDC.
• Check the wiring to the suspected component for an open/short circuit.
• Replace the component, which loads down the +12 VDC.

Xerox DocuColor 12/DCCS50 Specifications

General

Brand	Xerox
Model	DocuColor 12/DCCS50
Category	All in One Printer
Language	English