20 Most Recent JVC LT-32X576 32 in. LCD Television Questions & Answers

sounds to me like the fluorescent backlighting is going bad in the top half of your set.

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main 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. 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. Search the site by type in the "brand name" to your device; in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Back-light inverter fault. Contact any service technician. If you wish to get some details, check the site linked here. Surf the site in "MOSAIC" view. It will make surf easy. Surf the site with patience. http://electronicshelponline.blogspot.com/

My screen has vertical multiple colors lines

This could be in the main processor board, or in the display substrate itself. The service rep would test by trying out boards until he gets to the fault. After board replacement he would check any recommended calibrations, and then return the set to the customer. If the set is more than a few years old, it may not be possible have new boards. Jerry G.

You may have power supply problem due to bad caps, or bad main board, or shorted circuits that stop the TV from going on to protect itself. You need to open it up and do in-depth troubleshooting.
Please read my guide first if you are going to DIY repair.

Basic LCD monitor and TV troubleshooting guide: http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide http://www.fixya.com/support/r7406380-tv_training_manuals Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you. Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series

I have the same problem. I finally convinced JVC's tech support to help me out (they **** by the way) and I got the schematics for all the boards in the unit. From looking at them I believe it is the Digital Signal Board. I will post results soon.

All LCD tvs HDMI cables support both video and audio.Tries another HDMI cable or tries another HDMI hub port on the tv.

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

there is a firmware update for this model download from jvc website onto a thumb drive and plug it into the side plug.

you must hit the input button on the side of the TV until your input is detected.

Seems digital process board has problem.
It would be nice if you post TV picture here that will describe us better whats going on.
Thank you.

Anytime an LCD has a shade of pink, that means the CCFL lamps are about to go out. Now that you have a black screen, I'd say you just need some new bulbs.

Sounds like the backlight failed for whatever reason. Up close with a flashlight can you see a pic?? If so, Id's suspect a fuse in the backlight panel or the panel itself...