LG DU-42PX12XC 42 in. Plasma HDTV Logo

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Harry Small Posted on Jul 24, 2012

42LF11-UA only half the screen shows a picture

1 Related Answer

Anonymous

  • 14553 Answers
  • Posted on Aug 27, 2012

SOURCE: green screen

check all inputs to see if only on for example component---what signal and where is this connected to on the set?

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My TV is a LG 47LN5700-UH I had a lightning strike near the house. Afterward TV would start but not boot completely. Now it won't start at all. Cable box also got fried at the same time.

The led driver AND the T-con board are bad. If you could see a picture with the flashlight then the T-con board would be good. It is not. The led driver can be on the main board or the power supply board. You can get these parts from here: TV Parts Universal TV Stands DLP Chips ShopJimmy
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I have a LG 42LF11- UA when i power on thw picture coms on blinks then dose this three more times then tv turns self off

Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
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How do i troubleshoot for a ball sensor,switch on a LG laundry washer?

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Tv hums and no picture

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Green screen

check all inputs to see if only on for example component---what signal and where is this connected to on the set?
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