Question about Mitsubishi VS-55707 TV

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Screen Jumpy on various Inputs

All inputs but the main cable input are jumpy. Sound is fine but video bounces really bad.

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This unit had a very bad problem with the pip bord

Several caps have to be replaced on the board

I would have a tv repair shop do it for you

You have to remove surface mount caps and replace them which is hard to do

Posted on Feb 10, 2009

  • tom woodward
    tom woodward Feb 10, 2009

    This unit had a very bad problem with the pip bord

    Several caps have to be replaced on the board

    I would have a tv repair shop do it for you

    You have to remove surface mount caps and replace them which is hard to do


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Is this a projection? If so the internal components could have issues and I wouldn't recommend trying to repair that. If it is a LCD or Plasma if may be an issue with that specific input or cable. Try another input like the antenna or cable input and see if it has the same issue. If it does the issue is again internal. If not than the one input may be the issue. Try replacing the cable or changing the device on the bad input. It that works great if not, you may not be able to use the one input. Also try and unplug the TV for an hour and try again. Good luck!

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Please cycle the unit through the various inputs to make sure it is on one with something hooked up to it.

Either that or a defective cable someplace--double check the hookup and start with just a DVD or something connected to a single input to see for yourself if any input is working.

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OK, I have one of these TVs, and here's a thought: There's nothing wrong with the TV nor with the cable converter box. Please bear with me. Since I don't know how much you may know about TVs in general and this one in particular, I'm going to assume you know nothing and go from there.

This TV has several different "inputs", which are ways a signal can be transferred from its source to the TV, where it "outputs" the video image. I believe this particular TV has 5 different inputs: In descending order of the quality of the video signal, there're one S-video input (a 4-pin video connector plus red & white audio), three composite video inputs (3 connectors each: yellow video and red/white audio--audio connectors are the same for both s-video and composite), and one coax connector (a single large screw-on connector with a little wire sticking up through the center of it) for a total of five different inputs.

The problem with these Apex TVs is that they always default to the Antenna/coax input first when they are restarted. Most people use the TV to display an input signal (like the cable box or a DVD player) connected either to the S-video or to one of the 3 composite video inputs, not to the coax input, which just displays the channel numbers from 1-125 when it's set to do that (hit the "display" button on your remote to toggle showing the channel numbers for the coax input). If there's no signal coming into the coax input, the screen with appear blue. (If it's blue, it simply means it's not getting a signal via the input to which the TV is currently set. You can turn off the blue screen in the menu settings, but then you'll just get a blank screen. It's probably better just to leave the screen blue; at least you can tell the TV's actually trying to display something that way.)

You have to manually select the proper input by pressing the "video" button either on the remote (lower right corner) or the "video" button directly on the TV (hidden control panel under the middle of the margin around the bottom of the TV screen. You'll have to press on the door, and the whole control panel rolls open to reveal another set of composite inputs and some buttons. The video button is the one farthest to the left.)

Anyhow, by pressing the video buttons, you'll cycle through the various inputs. Assuming your cable converter box is functioning properly, powered on, receiving a signal from the cable company, and connected to the TV via a(n) appropriate wire(s) connected correctly, you should see the output from the cable box on the screen when you cycle through to display the proper video input.

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