Dell 3130cn Service Manual page 246

Step
Checking the ROLL ASSY SEPARATER, ROLL ASSY
FEED MSI and ROLL ASSY TURN for shape and opera-
tion
Open the MSI.
9 Are the ROLL ASSY SEPARATER, ROLL ASSY FEED
MSI and ROLL ASSY TURN installed correctly?
Also are they not contaminated and /or damaged, and
rotate smoothly?
Check these ROLLs by turning them with your finger.
Checking the connectors of the SENSOR PHOTO (REGI
SENSOR) for connection
10 Check the connections between the PWBA MCU and
REGI SENSOR.
Are P/J29, P/J292 and P/J2922 connected surely?
Checking the HARN ASSY REGI SNR for continuity Dis-
connect P/J2922 from the REGI SENSOR.
11
Disconnect P/J292 from the HARN ASSY R SIDE.
Is each cable of P/J2922 <=> P/J292 continuous?
Checking the HARN ASSY R SIDE for continuity
Disconnect P/J29 from the PWBA MCU.
12
Disconnect P/J292 from the HARN ASSY REGI SNR.
Is each cable of P/J29 <=> P/J292 continuous?
Checking the power to REGI SENSOR
Disconnect the connector of P/J29 on the PWBA MCU.
13
Is the voltage across ground <=> J29-8pin on the PWBA
MCU, about +3.3 VDC?
Checking the REGI SENSOR for operation
Measure the voltage across ground <=> J29-10pin on the
14 PWBA MCU.
Does the voltage change, every time the actuator of the
REGI SENSOR is operated?
Checking the connectors of the SOLENOID FEED MSI for
connection
15 Check the connections between the PWBA MCU and
SOLENOID FEED MSI.
Are P/J29 and P/J234 connected surely?
Checking the HARN ASSY R SIDE for continuity
Disconnect P/J29 from the PWBA MCU.
16
Disconnect P/J234 from the SOLENOID FEED MSI.
Is each cable of P/J29 <=> P/J234 continuous?
Checking the power to SOLENOID FEED MSI
Disconnect the connector of P/J29 on the PWBA MCU.
17 Is the voltage across ground <=> J29-7pin on the PWBA
MCU, about +24 VDC when the interlock switch (HARN
ASSY INTERLOCK) is pushed?
Version 2 2008.03.27
Check
1 - 220
Chapter 1 Troubleshooting
Yes
Replace the
PWBA MCU.
Replace the trou-
(Refer to Removal
30/Replacement
14)
Go to step 11.
and/or P/J2922
Go to step 12.
Go to step 13. HARN ASSY R
Go to step 14. (Refer to Removal
30/ Replacement
Replace the
PWBA MCU. Replace the SEN-
(Refer to Removal
30/ Replacement (REGI SENSOR).
14.)
Go to step 16.
Go to step 17. HARN ASSY R
Replace the
SOLENOID
FEED MSI.
(Refer to Removal
(Refer to Removal
30/ Replacement
15/ Replacement
29.)
No
bled ROLL(s).
Reconnect the
connector(s)
P/J29, P/J292
surely.
Replace the
HARN ASSY
REGI SNR.
Replace the
SIDE.
Replace the
PWBA MCU.
14.)
SOR PHOTO
Reconnect the
connector(s)
P/J29 and/or
P/J234 surely.
Replace the
SIDE.
Replace the
PWBA MCU.
14.)