LG 50PK950 Training Manual page 35

X Drive Circuit Board Removal
X Drive Circuit Board Removal
Remove AC and Lay the Television down carefully on a padded surface.
Make sure to use at least two people for this process so as not to flex the panel glass.
Refer to next 3 pages for disassembly and precautions.
a) Remove the Back Cover.
b) Remove the Stand (4 Stand Screws were removed during back removal).
c) Remove the Stand Metal Support Bracket (5 Screws) 2 Plastic tap thread and 3 Metal thread.
d) Remove the Vertical support Braces marked "E".
Note: There is a Left and a Right brace. (5 Screws per/bracket) 2 Plastic tap thread and 3 Metal
thread.
(Note, the right brace has a Grounding wire from the AC input which must also be removed).
e) Remove the 13 screws holding the Heat Sink. (Warning: Never run the set with this heat sink
removed).
To remove the heat sink, lift up to release the tacky Chocolate (heat transfer material) and slide the
heat sink to the left to clear the connector wires on the right side.
Note: There are two large pieces of conductive tape on the right side of the Right X Board that must
be removed.
Also, note that there are several pieces of Chocolate heat transfer material attached all the way across
the underside of the heat sink.
X-DRIVE LEFT, CENTER AND RIGHT REMOVAL:
Disconnect all TCP ribbon cables from the defective X-Drive board and all other Ribbon cables going to
the board.
Remove the 5 screws holding the defective X-Drive board in place.
Remove the board. Reassemble in reverse order. Recheck VA / VS / VSC / -VY / Z-Bias.
35 October 2010 50PK950 Plasma