On my tv, whether it be a tv show or a blu-ray movie, whenver ther is a dark spot on the screen, like the black of night, or black hair on someon or anything like that at all I get spots all over the area. This is really frustating when I am watching a Blu-Ray movie that has a lot of dark in it, like the new Batman movie. The TV I currently have is a Maxent 42 inch plasma tv. This is a old one, it came out before they started putting HDMI ports in the TV so I have to use an HDMI to DVI cable. Is there anything that can be done to stop this?
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I had the same red dots in the dark areas and it was driving me nuts. I also have a toshiba 50hp66. Luckily I found out that it's an easy fix. Open up the back of your tv and on the left side you will see two adjustment pots labelled Vsc and Vy. I first marked with a sharpie where the factory defaults were. Then I adjusted down (to the left) the Vy a little and the red spots were gone! My TV looks like new. Hope this helps.
this issue is tape from the edge of the panel falling onto the screen.You will have to remove the cabinet and the panel from the bezel(front cabinet).remove the screws from the lcd outer edge. Take of the tape.Be very carfull of the ribbon cable that goes to the lcd controller and to the lcd screen itself. They break easy. If you do , its over. you will need a new panel. to much money and work. best to leave it alone.I have fixed it several times for people with warrentys. It is just anoying but will not hurt your tv.
The dancing spots can be sorted by you taking the back panel off and adjusting the va and vs adjusting nobs , you will need a multimeter so you you can adjust the voltage to the right settings that are on a sticker on the back of the panel. You must remember to connect the black pointer to the earthed wire to get and the red to the live wire that has va or vs at the end of it. The right voltage measurements will be be found on a sticker at the back of the panel.
I advise you not to touch the setup and setdn nobs as these are factory settings and should not be touched.
If the va and vs do not sought the problem then try the vy and vsc adjusting nobs but only touch those if the va and vs does not fix your problem first.
Once you have done everything right your tv should be better then before with clearer pictures.
I hope this helps and be careful not to get zapped.