Question about JVC AV-27850 27" TV

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Tv problem i have an older mitsubihi tv its projection tv model vs5071 well i don't know where is the horozontal or vertical buttons located i need to adjust because it just keep on rolling could you please help thanks

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Re: tv problem

Generally buttons are located at front only. but if it is not there then it will be inside in the shape of small variable res. called preset. vertical hold button will be near vert.section &horz hold near h/ section.

Posted on Sep 30, 2007

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Hi there, I have the same model, and I had a simular problem , except my picture shrunk from each side of the screen into concave arc, if you know what I mean. I thought it might be a faulty horozontal output transistor, so I replaced that but did not fix it.
Eventually the picture quality dropped namely it became out of focus and i couldnt refocus it. Then it stopped all together and I heard a ticking sound, which I found was
coming from the line output transformer. A Tech friend told me it was probably a cracked or burnt out HV Capacitor, so checked them all and ofcourse they were all o.k.
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am right as they are not cheap.
I think I have the answer to your problem which is a very simple one:
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TNP 107985 which is located right next to the AV inputs on the back of the TV, the switch is a round white component with a lever on it, and is located on the top of the board, push it to the max forward position, this should help, but might not fix it enough
depending on how much space u have at the bottom. There are no other vertical height adjustments on this Model so it would have to be a faulty component, like a HV
capacitor or burnt out resistor, or not enough HT drive voltage, which suggests dare I
say it--- Line output Transformer, could be wrong though.
Anyway good luck with your problem, hope what I suggested helps.

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