Dell 3130cn - Color Laser Printer, Service Manual

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Chapter 1 Troubleshooting
Version 1 2008.02.15
29
Checking the HARN ASSY R SIDE for continuity
Disconnect P/J25 from the PWBA MCU.
Disconnect P/J251 from the DRIVE ASSY PH.
Is each cable of P/J25 <=> P/J251 continuous?
Go to step 23.
Replace the
HARN ASSY R
SIDE.
30
Checking the power to DRIVE ASSY PH
Disconnect the connector of P/J25 on the PWBA MCU.
Are the voltages across ground <=> J25-1pin/J25-2pin on
the PWBA MCU, about +24 VDC when the interlock switch
(HARN ASSY INTERLOCK) is pushed? Replace the
DRIVE ASSY PH.
(Refer to Removal
17/Replacement
27.)
Replace the
PWBA MCU.
(Refer to Removal
30/Replacement
14.)
31
Checking the connectors of the CLUTCH ASSY PH REGI
for connection
Check the connections between the PWBA MCU and
CLUTCH ASSY PH REGI.
Are P/J23 and P/J231 connected surely?
Go to step 32.
Reconnect the
connector(s)
P/J23 and/or
P/J231 surely.
32
Checking the HARN ASSY R SIDE for continuity
Disconnect P/J23 from the PWBA MCU.
Disconnect P/J231 from the CLUTCH ASSY PH REGI.
Is each cable of P/J23 <=> P/J231 continuous?
Go to step 33.
Replace the
HARN ASSY R
SIDE.
33
Checking the power to CLUTCH ASSY PH REGI
Disconnect the connector of P/J23 on the PWBA MCU.
Is the voltage across ground <=> J23-1pin on the PWBA
MCU, about +24 VDC when the interlock switch (HARN
ASSY INTERLOCK) is pushed?
Replace the
CLUTCH ASSY
PH REGI.
(Refer to Removal
40/Replacement
4.)
Replace the
PWBA MCU.
(Refer to Removal
30/Replacement
14.)
Step Check Yes No