Samsung ML-4551ND - Main PBA

Service Manual
Disassembly and Reassembly
5-8
Samsung Electronics
5.8 Main PBA
1. Before you remove the Main PBA, you should
remove: - Cover Right (Refer to the 5.7)
2. Unplug the all Connectors, as shown below.
3. The Connectors are located, as shown below.
4. Remove two screws and take out the Dummy
Bracket.
5. Remove six screws and take out the Main PBA.
Duplex
SMPS/HVPS
PBA
PTL
Cover Open
Thermistor
LSU
Toner
Sensor
DEVE
Motor
DPX_SOL
Key Panel
HDD(Optional)
Network
Card
Main Motor
Exit Sensor
Connector
PBA
Memory(Optional)
USB
Port
P1284
Port
Connector
SCF
Key Panel
BRACKET
NIC HOLE
Main PBA