LG 42PG20 - Circuit Board Removal Procedures

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Plasma Fall 2008 42PG20
Switch Mode Power Supply Board Removal
Disconnect the following connectors: P812, P813, CN101
Remove the 8 screws holding the PWB in place
Remove the PWB
When replacing, be sure to readjust the Va/Vs voltages in accordance with the Panel Label.
Confirm VSC, -Vy and Zbias as well.
Y-SUS Board Removal
Y Drive Board Removal
Notes: 1) All Plugs listed are from left to right Pin 1,2, 3, ETC.
2) Remember to be cautious of ESD as some semiconductors are CMOS and prone to static failure
Disassembly Procedure for Circuit Board Removal
Disassembly Procedure for Circuit Board Removal
Disconnect the following connectors: P201, P801, P101, P202
Remove the 8 screws holding the PWB in place
Remove the PWB
When replacing, be sure to readjust the Va/Vs voltages in accordance with the Panel Label.
Confirm VSC, -Vy and Zbias as well.
Disconnect the following Flexible Ribbon Connectors: P1, P2, P3, P4, P5, P6, P7 and P8
Disconnect the following connectors: P201, P801, P101, P202
Remove the 3 screws holding the PWB in place
Remove the PWB by lifting slightly and sliding the PWB to the left unseating P204 and P200
from the Y-SUS PWB