Question about LG LFD790 System

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My LG LFD790 is hooked up to my TV correctly but sudenly will not show up on the screen. The audio is fine you just cant see the picture. I have the TV on and start th LG LFD790 and the blueish LG screen apears for 2 seconds, flickers and then goes blank. The LG LFD790 makes a slight click sound when the screen goes blank. My first thought was a blown fuse but i dont know how to get to the fuses? can you help?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: LG LFD790 installed with cable

TV CONTROLLS LFD790

Posted on Jun 18, 2008

Jma11
  • 140 Answers

SOURCE: no sound when using the TV

1- Find the two audio out female RCA jacks on your tv. One is red one is white. Some older tvs may not have any, if so you are out of luck.
2- Purchase a stereo patch cord (male x male RCA) long enough to reach the LG's Subwoofer.
3- Connect the red and white plugs to the tv output and connect the red and white plugs to the "Aux In" female RCA jacks on the subwoofer.
4- Select stereo input for sound on the LG's user interface.

You will be able to upconvert the stereo input to various surrond modes by studying the control manual.

:).

Posted on Nov 30, 2008

  • 2 Answers

SOURCE: 42 inch LG Plasma TV - Lost picture

Hi , I recently had the same problem which I was determined to fix . So I did a few weeks of research to find that it was the Y SUS board which burns out. I'm sure you realized that the TV gets hot. Personally I think this is why. circuit boards don't like heat and I've learned that the cooling fans are a joke. I replaced the board and got my picture back. I proved the fan theory because after the screen started to act up. I placed a cooling fan near the vent holes on top and the problem cleared right up,It also helps if you lower the brightness which helps out on the heat situation.I will soon be adding a fan with a temp. sensor. This shoud help if your screen has lines when you initially turn the cool TV on.then I have Some other costless solutions. Hope this helped these are great TV's and like our cars we maintain them not throw them away..................................Mr Wiseman

Posted on Jan 30, 2009

  • 2 Answers

SOURCE: frozen picture on LG LCD 37"

Try One of your working TVS and connect it to your cable outlet of the TV that is having problems. If that TV Does not work then there may be a degraded fitting or the Leg coming of the splitter to that outlet could have a Low Signal Problem
Next Take the First TV that was not working properly and put it on the cable outlet of one of the TVs that is working properly and if the TV set works on that Channel then you know it is not your TV that it must be the cable

Posted on Feb 28, 2009

  • 1 Answer

SOURCE: Problems with LG Vu CU920 Cellular Phone mobile TV

the TV icon wont turn off!

Posted on Aug 25, 2009

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1- Find the two audio out female RCA jacks on your tv. One is red one is white. Some older tvs may not have any, if so you are out of luck.
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:).

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