Question about Westinghouse LTV-30W2 Television
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Posted on Jan 02, 2017
SOURCE: My LTV-32w6 westinghouse powers on & has sound but displays black screen with very faint colored vertical lines. It shows like this for about 1min before it goes into standby mode & the blue p
Depends on what is causing it...
Vertical bands of faint black are generally caused by filtering capacitors and can be found in the power supply or the 5 volt supply or even the Video processing circuit...it is not an easy task to identify the source of Video hum bars.....we also call them Jailbars.
Another problem seen is faint black lines caused by the TV set being in 4:3 mode all the time....right at the edge of where the picture ends and the black pillars begin, we see a faint black line that never goes away and is normally seen with a full screen....
That is actually image retention, but it's caused by the crystals that create the picture becoming polarized or ionized over a very long period of time....and it's not easy to DE-Polarize them !
But there are some theories out on how to do that....
Certain people suggest running the TV overnight with an ALL-WHITE picture and some suggest an ALL BLACK PICTURE...and some suggest alternating between both !!
Now, a black picture is easy to make, you just deactivate the Video Mute (blue screen) and set it to an unused Video INPUT overnight....
About the only way to make a white screen is to use the USB port for pictures and take a very bright outdoor shot of a piece of white paper that hopefully is out of focus too....That would create an all-white picture that you can plug into your TV set overnight....
Now if you decide to try this, deactivate any displays on your TV set...all you do is press the display button until the Video and/or USB input numbers disappear....
Next day , set it back to normal TV and see if it's gone or if it's REDUCED....try it again if needed, or try the exact opposite if you see NO RESULTS....
Posted on Sep 20, 2012
Okay, if the screen is white! First, take apart and check the ribbon like cable that goes from your signal board (where you inputs are plugged in) to the lcd controller (under a small metal plate feed the lcd screen), see if loose and or reset! Secondly you either have a bad signal board or lcd controller!
Posted on Mar 04, 2009
Hello Deputyfields, it sounds like you will need to replace the inverter board. If you are technical enough you can open the unit and see if one of the transformers on the inverter board is bad. If the board is not damaged you can replace the transformer itself but in most cases replacing the inverter board is a lot easier. You will need to get the part # out of the board and you can purchase the board online by placing the part # on www.google.com, I normally recommend places like www.shopjimmy.com, www.invertercentral.com, www.parts4less.com.
Posted on Jan 24, 2011
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