Question about Samsung Televison & Video
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Posted on Jan 02, 2017
If lighting did strike, you would be suffering power supply problems, due to a power surge from the strike.
The problem sounds like it could be related to the LCD panel becoming faulty or if your able to test inside the unit with a multimeter, you can measure the voltages from the printed circuit boards, especisly those suppling power to the LCD panel as well as the Logic PCB, A small printed circuit board you will find either attatched to the LCD panel. I hope this helps.
Posted on Jun 07, 2010
SOURCE: 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
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 trouble shoot. Contact any service technician. The circuit will differ with models and versions.
Posted on Apr 18, 2015
Check the aerial is ok, try another aerial on the set. It is unusual for FP tvs to have a bad picture. If the aerial is tested as being good try resetting the set to the factory default and then retune the cannels. I am assuming that you are receiving the signal through an aerial and not through cable/satellite dish.
The reset process may not not resolve the issue in which case it is probably time to get the services of a qualified technician. The fact that the picture stays on channel probably indicates that it is not a tuner error but something in the display ciruitry .
Posted on Jun 16, 2015
T'Con board fault. If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
Posted on Jun 16, 2015
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