Question about Sanyo HT32744 32" TV

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Screen has green and reddish spots in two upper corners

We had two large speakers next to the TV, but we moved them about six months ago and occassionally still have spots on the screen.

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Re: Screen has green and reddish spots in two upper...

It sounds like the screen has become magnetized by the magnets in the speakers.

Inside all analog TVs is a device called a degaussing coil. When you turn on the TV for the first time (cold), the degaussing coil is energized for a couple seconds to demagnetize the screen and then it goes off.

You can purchase an external degaussing coil and demagnetize the screen youself. A degaussing coil looks like a small hula-hoop about 6-8 inches in diameter with a AC line cord attached. I've even made these coils out of long lengths of enameled wire, electrical tape and a line cord.

Once itas plugged into the wall outlet, you hold it close to the screen (1/2' away) with the hoop facing the screen and move the hoop in a circular pattern, covering all areas of the screen and slowly move the hoop away from the screen while still moving in a circular patten until your about 2-3 feet from the screen.

If you did it right, the color splotches will be gone.

It's possible that the coil in your set is bad. The coil is energized for a few seconds when you turn on your TV and then it shuts off a few seconds later. You can try turning on the set for around 30 seconds, and then turn it off. Wait about 10 minutes and turn on the set again. Doing this several times may let the sets internal coil (if its working) to demagnetize the screen. If not, you'll need to use a degaussing coil.

Let me know if I can be of further assistance to you.

Good Luck!

Posted on Feb 10, 2008

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Re: Screen has green and reddish spots in two upper...


Thanks for the solution. I'll give it a try. Also, I have surround sound and don't need the speakers in the set. Would it work to remove/disable those speakers (i.e. will that get rid of the problem permanently?)? Second is it practical to do so?

Thanks again for offering me some hope.


Posted on Feb 10, 2008

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