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

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Jvc lt 42tg30j

Wont turn on blue blinking light

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These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power led, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating, to many popular brand TVs and other devices. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.

Posted on Mar 26, 2014

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Posted on Jan 02, 2017

  • 105 Answers

SOURCE: JVC LT-32P679 Blinking Power Light, Automatic Shutoff

1. Hold [menu] and [vol-] button on the side of the TV
2. while holding these, press the [power] button on the side of TV (NOT remote)
3. blue light comes ON and stays ON
4. wait 10 seconds then let go of [menu] and [vol-]
5. wait another 30 seconds and some type of picture should appear

I think this is right. I got it from the JVC call centers guys so sorry if I missed or messed up a step.

Posted on Apr 29, 2009

josetejas
  • 300 Answers

SOURCE: JVC LT-42E488. No picture. JVC logo comes up for a few seconds.

A firmware update might fix it. Call an authorized servicer, explain the symptom.

Posted on Jan 29, 2010

  • 1 Answer

SOURCE: My JVC LT-47X579 is not "turning on" since we

hmm i had the same problem the saturday before on my lt-42x579but i didnt have anything hooked up to it blue light came on then flashed ..no pic this happend one week after it was pd off from a rental store we should investigate

Posted on Jan 03, 2011

  • 1 Answer

SOURCE: JVC LT-42X579 blinking blue light

wow thanks you thanks you God bless you who figured it out worked fabulously thanks again

Posted on Jun 19, 2012

spr1949
  • 1182 Answers

SOURCE: jvc lt-42tg30j connecting to computer

Can you please follow guidelines given in the operation manuals of both?

Posted on Aug 23, 2012

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Jan 18, 2016 | JVC Televison & Video

1 Answer

JVC LT-42TG30J Doesn't start, blue light flashes


Could be an open internal fuse or power supply failure

Mar 18, 2017 | Televison & Video

1 Answer

Jvc lt-42tg30j connecting to computer


Can you please follow guidelines given in the operation manuals of both?

Aug 22, 2012 | JVC Televison & Video

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My 52 in jvc model lt-52x579 turns on but there is no picture or sound and about two seconds later the led light for the power starts to blink i tried to turn it off but it just keeps on trying to turn on...


Sound like the power supply board has gone out .Unplug the tv for 2 or 3 minutes and plug it in again and try to turn on. Some times they will come on .But It sounds like the PSB is going out .

Feb 14, 2011 | JVC LT-52X579 52 in. LCD TV

1 Answer

My JVC LT-47X579 is not "turning on" since we


hmm i had the same problem the saturday before on my lt-42x579but i didnt have anything hooked up to it blue light came on then flashed ..no pic this happend one week after it was pd off from a rental store we should investigate

Dec 22, 2010 | JVC LT-42X579 42 in. LCD TV

1 Answer

JVC LT-42E488. No picture. JVC logo comes up for a few seconds.


A firmware update might fix it. Call an authorized servicer, explain the symptom.

Jan 16, 2010 | JVC LT-42E488 Television

1 Answer

I have a JVC LT-42X579 TV. I got home tonight and


This is common problem of the failure of power supply board inside TV. You need technician to figure out this problem.

Aug 13, 2009 | Televison & Video

4 Answers

JVC LT-32P679 Blinking Power Light, Automatic Shutoff


1. Hold [menu] and [vol-] button on the side of the TV
2. while holding these, press the [power] button on the side of TV (NOT remote)
3. blue light comes ON and stays ON
4. wait 10 seconds then let go of [menu] and [vol-]
5. wait another 30 seconds and some type of picture should appear

I think this is right. I got it from the JVC call centers guys so sorry if I missed or messed up a step.

Mar 17, 2009 | JVC LT-32P679 32 in. LCD TV

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