Question about Samsung Televison & Video

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Hi, I have a samsung flat panel tv model UN29F4000, has sound and looks like no picture but if looked at in the dark you can see a faint image. Powersupply board changed with same results. Thanks

No sound, faint image noticed in a dark room, in a lighted room the screen looks black

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  • Samsung Master
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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://electronicshelponline.blogspot.com/
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 trouble shoot. Contact any service technician. The circuit will differ with models and versions.

Posted on Apr 18, 2015

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  • Samsung Master
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Looks like the back lights are not working. The older TV sets had fluorescent tubes, the newer have LED's voor back lighting. I would look there, or visit a repair shop. Or when the TV is old, start saving up for a new one.

Posted on Apr 18, 2015

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