Question about Samsung PCH521R 52" Rear Projection Television

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The area on the top part of the tv and the area on the bottom part of the tv have two parabolic lines, one green and one red. The picture has a shadow and is unclear.

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  • tlicea Jan 14, 2009

    I would like to complete the repairs myself if you can help. I was unable to find the ICs. If you can help and tell me where the ICs are then I am sure that I will be able to do it. Thank you.

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This is a convergence problem that can be as simple as bad connections at the convergence ICs or defective ICs. If you can solder and anre comfortabel working inside the set, you may be able to repair this yourself. Let me kow if you wish to attemp the repair and I'll provide additional details and instructions.

Dan

Posted on Jan 14, 2009

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This problems ur tv have can't not be fix by adjustment.The tv have a problems known as convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.These parts on the tv convergence board,must be replaced to repair the tv convergence board to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

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http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/

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I am told my Hitachi 61SDX01B (UltraVision/Ultrascan) has "Green Geometry"


Sounds like a convergence promblem.

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

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 www.TvRepairKits.com. 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

Hitachi 61SDX01B


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accurate because the red and blue convergence overlays on

the green.If you have more than an alignment issue,that will need

repair before adjustments are attempted.

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1 Answer

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