Dell 2135cn Service Manual page 323

Step
Checking the ACTUATOR REGI ROLL for shape and
operation
Remove the CHUTE LOW (PL3.2.27) once to check the
17
shape and operation.
Are the shape and operation of the ACTUATOR REGI
ROLL normal?
Checking the connectors for connection
Check the connections between the PWBA MCU and
DRIVE ASSY MAIN (Main Motor).
Are P/J21 and P/J211 connected correctly?
18
Checking the HARN ASSY MAIN MOT for continuity
Disconnect J21 from the PWBA MCU.
19
Disconnect J211 from the DRIVE ASSY MAIN.
Is each cable of J21 <=> J211 continuous?
Checking the power to the DRIVE ASSY MAIN
Disconnect J21 from the PWBA MCU.
20 Are the voltages across J21-2pin/J21-4pin <=> ground on
the PWBA MCU, about +24 VDC when the interlock switch
(HARN ASSY INTERLOCK) is pushed?
Checking the connectors of the SOLENOID FEED
(Cassette Feed Solenoid) for connection
Check the connections between the PWBA MCU and
SOLENOID FEED.
Are P/J23 and P/J231 connected correctly?
21
Checking the HARN ASSY L SIDE for continuity
Disconnect J23 from the PWBA MCU.
22
Disconnect P231 from the SOLENOID FEED.
Is each cable of J23 <=> P231 continuous?
Checking the power to the SOLENOID FEED
Disconnect J23 from the PWBA MCU.
23 Is the voltage across P23-1pin <=> ground on the PWBA
MCU, about +24 VDC when the Interlock Switch (HARN
ASSY INTERLOCK) is pushed?
Version 1 2008.02.01
Check
1 - 295
Chapter 1 Troubleshooting
Remedy
Yes
Replace the Reseat the
PWBA MCU. ACTUATOR REGI
(Refer to Removal ROLL. If broken or
31/ Replacement deformed, replace
29.) it with a new one.
Reconnect the
connector(s) P/
Go to step 19.
J21 and/or P/J211
correctly.
Replace the
Go to step 20. HARN ASSY
MAIN MOT.
Replace the Replace the
DRIVE ASSY PWBA MCU.
MAIN. (Refer to (Refer to Removal
Removal 33/ 31/ Replacement
Replacement 27.) 29.)
Reconnect the
connector(s) P/
Go to step 22.
J23 and/or P/J231
correctly.
Replace the
Go to step 23. HARN ASSY L
SIDE.
Replace the
PWBA MCU.
Go to step 24. (Refer to Removal
31/ Replacement
29.)
No