Dell 3130cn Service Manual page 255

Step
Checking the power to the DUP JAM SENSOR
Disconnect the connector of P/J430 on the PWBA DUP-H.
9
Is the voltage across ground <=> J430-1pin on the PWBA
DUP, about +3.3 VDC?
Checking the SENSOR PHOTO (DUP JAM SENSOR) for
operation
Disconnect the connector of P/J430 on the PWBA DUP-H.
10 Is the voltage across ground <=> J430-3pin on the PWBA
MCU
Does the voltage change, every time the actuator of the
DUP JAM SENSOR is operated?
Checking the connectors of the PWBA DUP-H and PWBA
MCU for connection
11 Check the connections between the PWBA DUP-H and
PWBA MCU.
Are P/J428, P/J2720, P/J272 and P/J27 connected surely?
Checking the HARNESS ASSY DUP UNIT for continuity
Disconnect P/J428 from the PWBA DUP-H.
12 Disconnect P/J2720 from the HARNESS ASSY FRONT
COVER.
Is each cable of P/J428 <=> P/J2720 continuous?
Checking the HARNESS ASSY FRONT COVER for conti-
nuity
13 Disconnect P/J2720 from the HARNESS ASSY DUP UNIT.
Disconnect P/J272 from the HARN ASSY R SIDE.
Is each cable of P/J2720 <=> P/J272 continuous?
Checking the HARN ASSY R SIDE for continuity
Disconnect P/J272 from the HARNESS ASSY FRONT
14 COVER.
Disconnect P/J27 from the PWBA MCU.
Is each cable of P/J272 <=> P/J27 continuous?
Checking the power to the PWBA DUP-H
Disconnect the connector of P/J27 on the PWBA MCU.
15
Is the voltage across ground <=> J27-17pin / J27-18pin on
the PWBA MCU, about +24 VDC?
Checking the connectors of the PWBA DUP-H and
CLUTCH DUP for connection
16 Check the connections between the PWBA DUP-H and
CLUTCH DUP.
Are P/J431 connected surely?
Checking the power to the CLUTCH DUP
Disconnect the connector of P/J431 on the PWBA DUP.
17
Is the voltage across ground <=> J431-1pin on the PWBA
DUP, about +24 VDC?
Version 1 2008.02.15
Check
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Chapter 1 Troubleshooting
Yes
Go to step 10.
FEEDER ASSY
Go to step 11.
Replacement 39.)
Go to step 12. P/J428, P/J2720,
Replace the HAR-
Go to step 13. NESS ASSY DUP
Replace the HAR-
Go to step 14.
FRONT COVER.
Go to step 15. HARN ASSY R
Replace the
FEEDER ASSY
DUP
(Refer to Removal
(Refer to Removal
30/ Replacement
5/ Replacement
39.)
Go to step 17.
Replace the
FEEDER ASSY
DUP
(Refer to Removal
5/ Replacement
39.)
No
Go to step 11.
Replace the
DUP. (Refer to
Removal 5/
Reconnect the
connector(s)
P/J272 and/or
P/J27 surely.
UNIT.
NESS ASSY
Replace the
SIDE.
Replace the
PWBA MCU.
14.)
Reconnect the
connector(s)
P/J431 surely.
Go to step 18.