Dell 1135N Service Manual page 149

Alignment and Troubleshooting
3) Abnormal noise
Description : There is noise when copy.
Check the right position of the
1. Check the Scanner Motor
Scanner Motor, and check the any
and any mechanical disturbance.
mechanical disturbance in the
CIS carriage part.
Replace main PBA.
2. Check the Motor Driver in Driver PBA.
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Service Manual