Main Pba - Samsung SCX4521F - B/W Laser - All-in-One Service Manual

Disassembly and Reassembly

5.15 Main PBA

1. Before you remove the Main PBA, you should
remove:
- Scan Ass'y (Refer to the 5.9)
- Middle Cover (Refer to the 5.13)
2. Unplug the all Connectors from the Main PBA, as
shown below.
DEVE
LIU
Clutch
SMPS/HVPS
Main Motor
LSU
Service Manual
5-16
Thermister
3. Remove the six screws securing the Main PBA and
remove it.
Main PBA
Samsung Electronics