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42 in JVC LT-42X688 screen has gone all haywire, looks like the matrix! sound works great but picture on everyone input doesnt work....fixable?

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Yes the unit is fixable. As long as the screen did not get cracked then the problem with your unit is most likely the video IC being bad. All you need to do is get a service tech to open up the unit locate the picture IC and replace it. Once this is done the unit should be operational again.
Hope this solution has been helpful?

Posted on May 18, 2011

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Posted on Jan 02, 2017

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1. This TV has setting for the HDMI input that allows you to select the HDMI Audio or Analog(red/white wire) audio. Make sure this is correct

2. Most cable boxes are DVI not HDMI. If DVI then you actually do need to use those Red/white cables. If HDMI, refer back to #1.

3. The cable box has a setting to select the Audio output, HDMI (digital) or Analog(red/white cables). Just like #1, this has to be set.

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This TV has x3 Boards. The one you should replace first is the one in the middle. If this doesn't fix it, try the one on the right. The Part #s are on the Boards if you wanna try ebay.

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