Dell 2130cn Service Manual page 248

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Step
Checking the power to the SENSOR PHOTO
Disconnect J421 from the PWBA FEED H.
6
Is the voltage across P421-9pin <=> ground on the PWBA
MCU, about +3.3 VDC?
Checking the SENSOR PHOTO for operation
Check the voltage across J421-5pin <=> ground on the
7
PWBA MCU.
Does the voltage change, when the ACTUATOR NO
PAPER is operated?
Check
1 - 222
Chapter 1 Troubleshooting
Remedy
Yes
Replace the
PWBA FEED H.
Go to step 7.
(Refer to Removal
43/ Replacement
11.)
Replace the
PWBA FEED H.
Replace the
(Refer to Removal
SENSOR
43/ Replacement
PHOTO.
11.)
No

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