LG PS-N550WPR Service Manual page 24

Major components Disassemble
Assemble and Repair instruction
How to replace the power PCB
1. After disassembling the door assembly, remove the
filter.
Loosen the screws of 6 positions.
2. Loosen the screw (1 position) attached on the control
PCB case using a
(Loosen the screws (2 positions) attached on the
power PCB using a
When disconnecting the connector, be careful not to
damage the PCB.
screw driver.
screw driver.)
-24-