JVC LT-32P679 32 in. LCD TV - Answered Questions & Fixed issues

If your set is led or lcd your Tcon board is getting to the end of its life, its the lowest cost board in a TV

Set-up (Programming) procedure is too much to type in here, and is not practical and it will differ brand-to-brand remote controls. If you wish to get more; check the sites linked here. It has set-up code list & set-up procedure to many popular brand remote controls. One among it has general set-up codes to check with TVs and other devices are given, in the order of the 'device's brand name list' in alphabetical order. Pull up older posts. Search the sites by type in the brand name to your device in its search box at the top right part of the display window. It will help you to find the document easily. http://electro-medical.blogspot.com/

The first step in troubleshooting this would be to perform a reset on the TV. You can do this by unplugging it from power for a couple of hours. Once you've done this, plug it back in and power it on and see if any issues persist.

If there is audio but no video you may be experiencing processor failure and some additional troubleshooting is going to be needed.

If there's no video or audio, chances are something caused the TV to short out somewhere. Most of the time the culprit is the actual power supply itself. The repairs on these aren't too difficult or pricey and if the TV is still under warranty you should be able to get it fixed for free.

Fault with its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

If it doesn't turn ON at all; the fault should be with its main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Yea u gotta turn it off from your system menu via Remote

Service mode entry method to this set is too much to type in here, and is not practical. For more information go to http://electronicshelponline.blogspot.com/

Is the screen black or blue?

I would either call JVC to see if known issue or to inquire if set has a lockout feature that kills remote and all button features----other possible reason in main board with all micro functions has a problem.

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.

HelloCheck the connection strip from T'Con board to LCD panel for any loose contact, at the connection point. If this connection is OK, replace its T'Con [Timing Control] board, with same number.

Look inside for a blown fuse.

Open it up and look for a fuse.

Cable system is grounded to electrical system. Most electronics have fuses inside. Open it up and look for blown fuse.

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.

try this , i think it will help,
http://resources.jvc.com/Resources/00/01/13/YA590ien.pdf

best regards

First there is not a picture tube in this set, it's called LCD which is a Liquid Crystal Display, kind of like a laptop computer monitor. If your panel is out then it could be an inverter board bad or if you don't have LED lights on then it could be your power supply. Try shopjimmy.com or discount-merchant.com or google for other parts distributors.

Depending on what your trying to accomplish, just go to radioshack and buy the adapter.

I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.

Hope this helps

Power supply replacement.