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Old 05-02-2018, 09:38 AM   #10
budm
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Join Date: Feb 2010
City & State: S.F. Bay area
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Line Voltage: 120V 60Hz
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Posts: 35,739
Default Re: 55ub850v no picture

LG 6871L-3703M (6870C-0502C) T-Con Board.
There many power supplies Voltages that need to be tested.
Pictures provided by shopjimmy.
Attached Images
File Type: jpg TCON-6871l-3703m-V test points.jpg (2.27 MB, 15 views)
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Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956

Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999

Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl

Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/

TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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