Question about Flat Panel Televisions
Hi, my RCA 32 inch L32WD12 LCD TV has a problem with an over abundance of green in the picture. The whole picture is not too green, in fact most of the picture/pixels are great as they should be, but there are green splotches or patches of the picture that have way too much green showing in them. It tends to be in the whiter areas of the picture whatever is showing either hi def or standard def. It's like whatever part of the picture is green then all of those pixels show nothing but green, then it moves to another area depending on what's showing.
I would love to find out which module to change myself as I do have some repair/electronics experience. Thanks for your help!
some of these panels were mis-calibrated from the factory after not aging long enough. Let the TV run for atleast 2 hours and adjust the Vs and Vscan voltages. When it is blue in the left I have found generally the Vs is about 10 volts too high.
Posted on Jun 25, 2007
SOURCE: LG 42PX3DCV 42 in.
Pixel misfiring (diffusion errors) are caused when the tv is not firing and erasing the pixels correctly. It can be caused by a number of things, usually a voltage or waveform is off somewhere. If you just bought the tv, return it and get another. If you are out of warrany, you can remove the back panel and run the tv to check the voltages. Don't touch the heatsinks! they're electrically hot and will zap you.. the voltages are labeled on the back of the plasma panel with a sticker. first check Vs and Va. sometimes you can check -Vy, Vset, Vscan and others if labeled on the board. If you have to adjust waveforms you need a very $$ o-scope and should get qualified technician to adjust. If a board is bad, its likely your power supply or Y-sustain pcb, and less likely your Z-sustain or contol (logic) board.
Posted on Dec 07, 2008
I'm sure you all thought of this but if someone does not state the easy fix then the easy fix doesn't get done.
I had the same thing happen to my Sam46inch1081, it just started doing it, no slow fade in over time.
I have cable with the HD box, all I did to fix it was unplug the power from the back of the hdbox, wait a few seconds plug power back in and have it reboot. Problem was solved.
Like I said, easy fix for me, don't know if this will help you, but ya never know.
Just thinking out loud here but maybe its not your tv but some other equipment you have added to it other than the hdbox.
Posted on Dec 23, 2009
a better solution is to replace the LVDS cables or just reseat them as the contractor stated it could be a motherboard but about 90% of the time it is actually the LVDS cables ohm load that puts toomuch load on the motherboard. the cheapest solution if out of warranty is buy an lvds cable and simply replace it if the issue still exist after the cable is replaced it will be a motherboard issue but any time you have red green or blue speckles on a vizio TV you should always swap the cable first since quite simply put it is the most common point of failure with that issue.
Posted on Feb 01, 2010
Tips for a great answer:
Dec 09, 2012 | RCA L32WD12 32 in. LCD HDTV
Mar 06, 2011 | RCA L32WD12 32 in. LCD HDTV
Feb 20, 2011 | Sansui HDLCD3210 32 in. LCD TV
Oct 03, 2010 | RCA L32WD12 32 in. LCD HDTV
Sep 12, 2010 | RCA L32WD22 32 in. LCD HDTV
Jun 21, 2010 | RCA L32WD12 32 in. LCD HDTV
Apr 13, 2010 | RCA L32HD31 32 in. LCD HDTV
Mar 01, 2009 | RCA L32W11 32 in. HD-Ready LCD Television
Oct 12, 2008 | RCA L32WD12 32 in. LCD HDTV
Oct 26, 2016 | Bush Flat Panel Televisions
288 people viewed this question
Usually answered in minutes!