Dell 2130cn Service Manual page 267

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Step
Checking the connectors of the SENSOR PHOTO (SSF No
Paper Sensor) for connection
Check the connections between the PWBA MCU and
SENSOR PHOTO.
Are P/J23 and P/J233 connected correcly?
8
9
Does the error still occur when printing?
Checking the HARN ASSY L SIDE for continuity
Disconnect J23 from the PWBA MCU.
10
Disconnect J233 from the SENSOR PHOTO.
Is each cable of J23 <=> J233 continuous?
Checking the power to the SENSOR PHOTO
Disconnect J23 from the PWBA MCU.
11
Is the voltage across P23-6pin <=> ground on the PWBA
MCU, about +3.3 VDC?
Checking the SENSOR PHOTO for operation
Check the voltage across J23-8pin <=> ground on the
PWBA MCU.
12
Remove the CHUTE LOW (PL3.2.27) once to check the
operation.
Does the voltage change, when the actuator of the
SENSOR PHOTO is operated?
Check
1 - 241
Chapter 1 Troubleshooting
Remedy
Yes
Reconnect the
connector(s) P/
Go to step 10.
J23 and/or P/J233
correctly, then go
to step 9.
Go to step 10.
End of work.
Replace the
Go to step 11.
HARN ASSY L
SIDE.
Replace the
PWBA MCU.
Go to step 12.
(Refer to Removal
43/ Replacement
11.)
Replace the
PWBA MCU.
Replace the
(Refer to Removal
SENSOR
43/ Replacement
PHOTO.
11.)
No

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