Question about Samsung Televison & Video

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LOST PICTURE ONTHE TV.

Please could you tell us how to repair our Tv as we have lost the picture, but not the sound. Samsung model:LA40B650T1F MODEL CODE LA40B650T1FXXY TYPENO LA40B650.Await your reply Simon Rawlins

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 42 inch LG Plasma TV - Lost picture

ysus pcb that supplies voltage to the panel is faulty

Posted on Dec 15, 2007

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moto34
  • 155 Answers

SOURCE: Samsung LCD Tv

Try this:
Access menu service by press on your command, with your TV OFF:

INFO + MENU + MUTE + POWER ON

Then you should get access to Service Menu.

The last item says: RESET

This will do a reset to the TV.

Make no harm.

WARNING: If when on service menu you feel tempted to "screw" on anything FIRST take note on ALL you change! You can compromise the TV ...

Posted on May 03, 2008

  • 92 Answers

SOURCE: vizio 47" lcd no picture no sound has power

this could be one of two problem. first, check if you have back light. If you do then the problem is with the M/B. Second, if you don't have back light then the inverter is bad and needs to be replace.

Posted on May 20, 2009

  • 1 Answer

SOURCE: no picture or sound, light comes on in the front and have to unplug tv to turn it off.

I had this exact problem on my Vizio 47" HDTV. I removed the speakers and all the screws on the back cover. Took the cover off and located the fuses on the largest circuit board. The are in the upper right hand corner of the board. There are 3 of them in a row labeled LF 1.5, LF 3.0 and LF 3.0. The are white in color with copper ends. I took a volt meter and measured continuity across all fuses individually and found the LF 1.5 to be blown. The guy at the electronics store sold me a barrel 1.5A fuse and told me to soldier it across the top of the blown fuse. It took an extra set of hands but the TV works perfectly.

Posted on Jun 23, 2009

premtech
  • 934 Answers

SOURCE: no picture on flat panel tv. has sound

Sounds like the digital control board, 6871qch038a Lg Digital Control Module subs to 6871qch038c. But that's just a first something I would check in this unit. Replace also capacitor C19, 630V big blue square cap very common failure for no video. You might want to shop this one thee are a host of problems with this unit that would certainly get some needed attention if a qualified tech were testing it and looked up the bulletins.
Good Luck!

William Rayburn, CET
Premium Technologies

Posted on Oct 05, 2009

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This is a common problem with this model and typically due to failed capacitors in the power supply Karen. More info:

Repair Article: http://www.earthinfo.org/samsung-tv-makes-a-strange-clicking-sound/

Replacement caps: http://www.electronix.com/television-repair-capacitors-c-16_68.html

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I have a Philips Magnavox Projection TV.

I had dish satelight install on my TV. It worked well for two days, then the picture started showing in a square box. I ffixed the convergence and it seemed okay. The next day I turned on the tv and it had sound, but no picture. When I press the status button, the picture would come on then go right back out. Now I don't have any sound or picture. Here is the model information:

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