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Hitachi 50UX11K wavy pic rolls

I have a Hitachi model 50UX11K which has a very wavy picture, although excellent color and contrast. The picture also tends to roll, even when the
ver hold control is adjusted. It had sounded like a bad comb filter, so I changed
to the S-Video input which is know to circumvent comb filter problems.
However, there was little or no change of the symptoms.


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Re: Hitachi 50UX11K wavy pic rolls

Hi Neil.
Do your TV image go back to normal after 10-20 minutes after being turned on, or does it stay like that for a long period of time.
When did you buy your TV? (how old is it?)(Do you still have the warranty?)
How long ago did that problem started?

Posted on Jan 03, 2008

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Re: Hitachi 50UX11K wavy pic rolls - Projection Televisions

Hi Neil
Did you change C325?

Posted on Jan 03, 2008

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Re: Hitachi 50UX11K wavy pic rolls

Sounds like the vertical controll circuit, it could just be a capicator that is on that circuit. as per the comb filter its very difficult to repair as the capacitors are micro and difficult to solder unless your soldering skills is very good. The is a place that repairs these comb filters i am not sure at what cost though. At any case you can bypass the comb filter by
1.) getting an s-video adapter for your vcr
2.) connect the vcr to the tv using the s-video adapter
3.) change the channels using your vcr.

I'd rcommend you get a professional to have a look at it and repair it as it is much to difficult to repair your self even if you have the service manual


Posted on Jan 03, 2008

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