Question about Vizio L32 32 in. LCD HDTV

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My Vizio HDTV has green/red snow on dark/white colors and it usually disappears but now it comes back for very long periods of time. I've done research and its come down to the LVDS cable. So, what are the steps to replacing an LVDS cable in my 32" Vizio HDTV?

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Usually if the LVDS cable between the main board and the T-CON board is bad, you will loose one of the three color signals, you may have thermal problem with the T-CON board. I would run the TV with the back open to see if it will take longer for the problem to appear, or get a can of freeze spray for electronic troubleshooting and cool down the T-CON board (board is under the metal shield that you will have to remove to get to all the cables, I would remove the shield and put the screws back in to keep the T-CON board in place).
The TV as shown in my album has bad T-CON board, the pictures get pixelated and scrambled after about 1/2 hour, I was using a small fan to keep it cool until I finally found a replacement T-CON board. Bad LVDS driver IC on the main board can also be the problem. Right now we need to find out if it is heat related problem or not.
http://s807.photobucket.com/albums/yy352/budm/VIZIO%20L32HDTV10A/

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.

Posted on Dec 31, 2010

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