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

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My JVC lt-42tg30j went to standby after not being used for a while and now it wont turn on any ideas

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Posted on Jan 02, 2017

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SOURCE: JVC TV (LT-32E478) Stuck (loops) in standby

Do you mean the JVC Logo keeps appearing?

If so, call JVC for the software update. I believe it may even be posted on their site. You can check in the TV menu to verify. You should have F108 or higher.

If the update doesnt apply, you need a Digital PWB for the TV because it is defective.

Posted on Apr 29, 2009

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SOURCE: JVC 32 inch LT-32DY8ZJ T turns on...shows green light....then turns to standby then back on then off again. Can this be repaired?

Good day..


That problem is usually cause of bad capacitors on the power supply section..

As you stated your TV works fine and after a minute the red light comes on...

That symptoms is cause of bad capacitors..Normally bad capacitors can check visually if the capacitors look like leak/bulged on the top that is the indication of bad one but not all bad capacitors are bulged some are not so in that case you have to used a special meter called capacitance meter..

This is the sample picture of bulged capacitors:


12_6_2011_5_59_01_am.jpg

Posted on Dec 06, 2011

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How do I fix my Jvc the screen won't power on. When I reset it the lights on the buttons light up...but shut off right away. It has power because the red light on the bottom left corner stays lit.


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1 Answer

Jvc lt 42tg30j


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.

Mar 26, 2014 | JVC LT-42X579 42 in. LCD TV

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

1 Answer

T.v sceen went out on my lt-42j300 what can it be


resources.jvc.com/Resources/00/01/15/YA678ien.pdf - United States
www.scribd.com/.../JVC-LCD-FLAT-Television-LT26WX84-Service-Manual -
use these manuals to troubleshoot and isolate your problem. This is a common thing.

May 17, 2010 | JVC LT-42J300 TV

1 Answer

JVC TV (LT-32E478) Stuck (loops) in standby mode...? Buttons on TV have no effect... Will not turn off?


Do you mean the JVC Logo keeps appearing?

If so, call JVC for the software update. I believe it may even be posted on their site. You can check in the TV menu to verify. You should have F108 or higher.

If the update doesnt apply, you need a Digital PWB for the TV because it is defective.

Apr 24, 2009 | JVC LT-32E478 TV

1 Answer

TV Won't Turn On - Think Fuse Blown


The set needs to be taken apart and visually inspected, look for a burnt spot and it could possibly be fixed by replacing the blown component, or else the wholr PCB must be replaced

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