Question about Sharp 55R-WP4H 55" Rear Projection Television

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Adjusting the TV horizontally

The problem with my TV is that it is cutting off just the right side of the picture, but the left side is fine. I tried going to the menu but it only lets me adjust the screen vertically. Any ideas on how to get the right side of my TV back would be greatly appreciated.

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Re: Adjusting the TV horizontally

There is not a horizontal center on this TV set. This is a fault with the horizontal sweep correction circuit I'm afraid. This circuit is a high voltage circuit and should onlt be serviced by a trained tech. Good Luck

Posted on Jun 29, 2007

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The picture sits about 2 inches to the left of the screen. Anything that is positioned on the left hand side gets cut off. Any suggestions for adjusting the picture horizontally?

You should post more specifics for what you are using this TV for when this happens.

Have you tried different inputs/are they all doing the same thing?
Also, if you are using this TV for a computer monitor via S-Vid or any type of converters, you could have an issue from the signal coming through and not the TV itself.

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Toshiba 61H70

Does the rest of the viewing picture looks like the picture below?b66a18b.jpg

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Does that set have whats called a color wheel, if so that maybe you problem, and replacement is how you fix it.

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Sony lcd projection tv vertical adjustment KF-50E200A

Try changing the settings for the video formats, widescreen, regular, and all that. There are angle mirrors in the back of the tv that direct the projected image on the screen. The mirrors are positioned such that if, says, a piece of a metal bracket or something falls down inside the projection area, it'll fall right against the projection lens and block the image. Open up the back of the tv and follow the light path from the screen backwards to its source and make sure there's no debris in the projection path.

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How to center a screen?

Horizontal centering is performed in the service menu. Beware! You can mess up a lot of stuff in this menu.

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With TV off ON Front Panel board Press and hold vol-&ch- at same time untill set comes back on you should now be in Service Menu ,try adjusting convergence then.

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1 Answer

Red horizonal convergence tilts instead of adjusting evenly.

For your hitachi unit one of the convergence IC is bad along with couple of low value resistance on
the convrgence board.

Good luck

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Hitachi 51SWX20B Convergence problem


Your TV has a convergence problem. Here are some of the most common symptoms.

Screen looks 3D
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed in or warped.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence or magic focus section.

Try to adjust the convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

Its a fairly easy fix on the Hitachi sets.

You can get a repair kit that includes all the parts from The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc.
Everything you need to fix it yourself.

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1 Answer


That is not a vertical roll from side to side, this is a horizontal rolling. if the vertical had a roll it would be going from top to bottom. This is most likely a coupling between the horizontal sync circuit and the sync separator circuit. Good Luck

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