Question about LG 42 42LK450 42 LCD TV

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LG LCD TV 42LK450 - Sound but screen is black..

Prior going to black had vertical lines across total screen - have replaced the T-Con board as I thought the vertical lines were caused by that - no success, than the backlight inverter board. Have checked the capacitors on the pwoer board and they all look fine. Have also put in the old t-con with the new inverter board.

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  • Contributor
  • 47 Answers

Sorry but you have a bad panel. Repair cost is prohibitive. The T-con was a good choice, but is the last step to the panel.

Posted on Mar 16, 2014

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circuitworld
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SOURCE: Hi, I have a 50

Tv has a short on the vertical scan board, the board needs to be replaced. The board cost around $89 bucks its a pretty easy fix one you could do yourself....


Posted on Nov 03, 2009

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SOURCE: trying to replace t-con board on a 47lg50 lcd tv,

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Posted on Dec 08, 2009

jmgldsmth
  • 1869 Answers

SOURCE: sound but only white screen no menu

try to: find the t-con circuit board in any country on ebay; replace the board yourself (it's easy) it's about $60.00 usd here

Posted on Jul 22, 2010

SOURCE: LG 42LK450 flat screen.I tried auto tuning but

If your trying to receive over the air make sure the TV is not set to a Cable mode, if your on Cable your new TV is most likely a ATSC tuner (digital) and the cable company can map channels any way they want. If your old TV had the older style cable tuner, the lineup will be different.
HDTV has level thresholds, if the signal is weak you wont see anything, but the old TV would.
Without knowing much about where or what sort of TV your using, these are my best ideas.

Posted on Oct 26, 2011

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