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

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Access service menu on jvc LT-42P300

Service menu

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Here is the source to get the service mode code
JVC http://tvservicemenu.blogspot.com/search/label/JVC

Posted on Jan 02, 2015

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  • JVC Master
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If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.

Posted on Aug 12, 2014

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SOURCE:

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Posted on Jan 02, 2017

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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

  • 1316 Answers

SOURCE: How do I use timer on JVC LT-42P300

For turned OFF enter in the set menu select the sleeper time(15-30...minutes).
For set the turn ON if you do not have the good signal it is imposibile.

Posted on Sep 02, 2009

  • 8 Answers

SOURCE: JVC LT-42P300 Remote Codes

try other codes for different tv's. or try the search mode on your remote control. you may need a newer remote that is compatible with your tv

Posted on Sep 19, 2009

BElectric
  • 1140 Answers

SOURCE: I have a LT32X576 JVC.

Hi there,

Firstly, you need to be in "TV mode" to make adjustments in the audio/sound menu. If you are using a cable or satellite receiver connected by HDMI, Composite, Component or S-Video cables, the TV will be in an external input mode and the audio menu on the TV will not be accessible.

Try pressing the INPUT button on your JVC remote repeatedly until you are back in TV mode. Then open the menu again and see if the audio settings are accessible. (Watching TV channels from a cable or satellite receiver using INPUT 1, 2, 3 or 4 does not mean you are in TV mode).

Secondly, if you are using a cable or satellite receiver, it is quite common for the TV to appear to lose audio because the receiver has "crashed" and has stopped sending audio to the TV. This can be resolved by re-setting (re-booting) the cable/satellite receiver. Some have a reset button on the front or back, some need to be switched off and on again, and others need to be disconnected from the power supply for a minute or so.

You really need to establish why there is no audio. It is a good idea to test the TV with another external source, e.g. DVD player, VCR or game system if you have one. If you have audio on the TV from one of these devices, there is no problem with the TV. If you are using a cable or satellite receiver, these are likely to be the cause of the problem.

If there is an audio failure with the TV, it is likely to be either something simple as detailed above, or a hardware fault with the TV, which may require professional repair.

Please try the simple tests above and let me know the results if you need further assistance. Please reply to be by clicking on "Add a Comment" below your question.

Thanks,
BElectric

Posted on Mar 02, 2011

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