Question about LG 42LB5D 42 in. LCD Television
Posted by Anonymous on
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Posted on Jan 02, 2017
you won't find any just ,
use a thermal probe or thermal gun as heat is likely the issue ,
if nothing else replace the main diode /rectifier and caps.
I find that if I replace the hottest items that usually the fix
if there is room for a small fan you will be doing them a great service and extend the life of the tv.
you may find some info on the power supply from one of these links they are generic enough
Posted on Jun 10, 2008
I do not have the schematic, but have a testing / troubleshooting guide for the 60PC1D 1st and 2nd generation, which gives some good insight in organization and functionality of the power boards.
This is what we ourselves step on when repairing - LG often does not publish schematics for power boards and sustain boards.
contact us if interested
Posted on Sep 30, 2012
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Sep 11, 2017 | LG Televison & Video
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Sep 30, 2012 | LG 60PC1D 60 in. Plasma Television
Apr 07, 2012 | LG 42LC2D 42 in. LCD HDTV
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.
Jan 19, 2011 | LG L1730SF 17" LCD Monitor
Jun 09, 2008 | LG 42PX5D 42 in. Plasma HDTV
May 07, 2008 | Televison & Video
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