Question about LG Televison & Video
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.
In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should be troubles hooted. Contact any service technician. The circuit will differ with models and versions.
Type in the brand name of your device, in the search box [at the top right] of the display window and the Search will start at once as you type in, and will show you all the related posts. It will make surf easy.
Posted on Mar 30, 2015
I'm not sure if it's the same for LG but my Sharp had a similar problem, the "main"board went bad. Cost me $150 to replace myself, repair shop wanted $500. It's like the motherboard in a computer but much easier to replace, just screws and connectors to deal with.
That was 3 years ago and it's still working fine.
I found your "Main Digital Board" for only $75!
Posted on Jan 12, 2015
It can be backlight lamps, CCFLs.
Posted on Mar 30, 2015
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Posted on Jan 02, 2017
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