LG 42PW350 - Disassembly Procedure for Circuit Board Removal; Switch Mode Power Supply Board Removal; Y-SUS Board Removal

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Note: 1) Remember to be cautious of ESD as some semiconductors are CMOS and prone to static failure.
Disassembly Procedure for Circuit Board Removal
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Disconnect the following connectors: P811, P813 and SC101.
Remove the 6 screws holding the SMPS in place.
Remove the board. When replacing, be sure to readjust the Va/Vs voltages in accordance with the Panel
Label Also re
confirm VSC
Vy and Z
Bias as well
Label
.
Also
,
re
-
confirm
VSC
, -
Vy
and
Z
-
Bias
as
well
.
Y-SUS Board Removal
Disconnect the following connectors: P206, and Ribbon Cable P101.
To remove P101, lift up on the locking mechanism and pull the ribbon cable out.
Remove the 8 screws holding the Y-SUS in place.
Remove the Y-SUS board by lifting slightly upward (to clear standoff collars) and then to the right while
gently prying apart P211~213.
When replacing, be sure to readjust the Va/Vs voltages in accordance with the Panel Label.
Confirm
-
Vy and Z
-
bias as well.
Y-Drive Board Removal
Confirm
Vy
and
Z
bias
as
well.
Disconnect P101~P106 Connectors to the Panel
Remove the 3 screws holdin
g
the Y-Drive board in
p
lace.
Board Standoff
g
p
Lift up slightly (to clear standoff collars), then slide to the left while gently
prying apart P101, P102 and P106. Remove the Y-Drive Board.
Collar
Note: Y-SUS, Z-SUS and Y-Drive boards are mounted on board stand-offs that have a small collar.
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June 2011 42PW350 Plasma
49
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