Question about JVC LT-42X579 42 in. LCD TV

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Jvc d.i.s.t. lc 32636-001b try to turn on from remote but all I get is a black screen which should be blue,there is sound but no picture.tried un plugging no change but kept switching on & off with remote lots of times &eventualy it comes back on .any idears

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Posted on Jan 02, 2017

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SOURCE: JVC 42 INCH PLASMA POWER LIGHT BLINKING ONLY NO PICTURE

no kidding? what is the problem so prevelant in this unit? obvious design flaw.

Posted on Jul 26, 2008

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SOURCE: JVC LCD TV LT-42X688-powers on, blank screen. no picture,no sound

You most definately have bad capacitors in the power supply. try and get it repaired as soon as possible, not an expensive repair that iv'e seen.

Posted on Feb 04, 2009

  • 1 Answer

SOURCE: JVC 42 inch LCD HD TV has no picture or sound

utencilio posted this fix. It worked for my JVC LT-42X579.

Okay, I found a fix! Called JVC, spoke to somebody there, here it is:
1)unplug the TV completely, no wall no power strips, completely
2)wait 10 sec
3)plug TV back in and Turn it on, the light will still be doing the same thing
4)wait 30 sec
5)ON THE TV, not the remote, locate the menu, volume (-) and power button.
6)while simultaneously holding down the menu and volume (-) button, pressed the power button ONCE and continue to hold the other 2 for 10 sec.
7)on the remote control, go to menu>settings>system info
*** now this I know as a FACT will work on systems that display: JVC - ver.5.32FO001, but I don't know of any other versions***
8)press the mute button on the remote twice
9)unplugg TV again and wait 10 sec.
10) plug TV in and turn on

It SHOULD be working normally now... Thanx to the guys a JVC support for this one, I know it seems like an obvious first place to look, but sometimes it isn't. I for one checked online forums first

Posted on Mar 08, 2009

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SOURCE: JVC LT 42x688 no picture just sound

Sorry, this has no easy fix. The good news is you do not need an LCD Panel. The bad news is the Video Processor has a problem.
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.

Posted on May 06, 2009

  • 1 Answer

SOURCE: JVC LCD TV LT-42X688-powers on, blank screen. no picture,no sound

Hi , I have the same problem with my LT-42X688,so i called the service of my extended warranty provider . the TV technician just left and told me the motherboard is the problem. he said its the third one this week he has seen with the same symptoms. he ordered the motherboard and i've got to wait 5 to 7 work days before the part will be in . I will keep you posted when the guy will return.

Posted on Jul 21, 2009

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