Question about Sony KP-53HS30 53" Rear Projection HDTV-Ready Television

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Picture flashes and soft images

When the screen is mainly white or very light colored, the screen will go off for a second or two then come back on.  If it has the same picture on the screen, it will go off again.

Don't have this problem when the screen is less than half white.

Also, the picture seems to be soft, not neccesarily out of focus, but soft.

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Re: Picture flashes and soft images

Sounds like poor regulation replace regulator get back too me

Posted on Nov 02, 2007

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It seems color wheel problem in your tv that gets problem after some time and you hear high pitch noise along with picture flicker.
Color wheel need to be replaced to solve this issue. Required color wheel is available with (click to view image of part and price info) and it is job of qualified tv repairman because light engine will take apart for that.
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Mitsubishi Rear Projection WS

5ebe434.jpg A projection television and a convergence control method thereof are provided. The projection television, which magnifies images displayed on cathode ray tubes (CRTs) for the colors red, green, and blue using lenses and projects the magnified images onto a screen, includes a convergence control apparatus capable of adjusting the convergence while an input image signal is displayed, the convergence control apparatus including: an image signal decoder which processes the input image signal to generate a data signal, horizontal and vertical synchronous signals, and a start signal indicating the start of either the horizontal or vertical synchronous signal; a convergence control unit which normally projects an image signal output from the image signal decoder onto the screen and performs convergence control using a predetermined region of the screen displaced from a visible region of the screen according to a convergence control command; and a main microcomputer which inputs the convergence control command to the convergence control unit when the start signal is input from the image signal decoder, stops the convergence control when a completion signal is input from the convergence control unit, and performs a control operation to continuously display the image signal during the convergence control.
the pro in convergence control circuit better change tat..

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Samsung HLR5067W: Screen goes black - Audio Remains. Several months back my 5 years old HLR5067W started displaying the following behavior: - Launches OK - After running for a while (anywhere between...

When was last time you replaced Lamp? Ballast Board is what powers the lamp on.
Lamp Fan, if it is defective it will shut lamp off to protect it, if it is Not cooling the Lamp.
Mats has Lamps for $99.00 1-800-628-1118

Encompass Parts Distribution has 10 Ballast Boards in Stock for $68.96 they also list Service Manual Free for this Model# 1-800-638-3328

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Hi,Yes your problem sounds like the DMD board.This is how it works: Basically the light of the lamp goes through a tunnel that carries a color wheel(rotating disc with a gamma of colors that creates the colors on your tv)then the light of the lamp goes through the DMD board which is a chip composed of around 2 million pixels that creates the images and colors.When it starts to fail it will create black bars,pixelation,color distortion or white dots on screens. Here's a video that will help you find where the DMd chip is located : Have a blessed one!

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The solution is an easy fix. Ignore anyone telling you to take it to a service center or to replace the convergence driver. You need to access the service menu on your television by using your remote control:

DRIVE CONVERGENCE Adjustment (Using remote control)

•Use the inner RGB box pattern.

(1)Set the [SLEEP TIMER] key to 0 min.

(2)Press the [DISPLAY] key and the [VIDEO STATUS]key simultaneously.

(3)Press the [9] key to display the RGB box pattern.

(4)Select the R mode by pressing the [DISPLAY] key.

(5)Adjust the R mode to setting as same as G mode bypressing the [CH ]+ / [CH -] key.

(6)Select the B mode pressing by the [DISPLAY] key.

(7)Adjust the B mode to setting as same as G mode bypressing the [VOL] - / [VOL +] key.

(8)Check to see that the cross pattern is white. If thecross pattern is not white, readjust (5) to (6).

That's it, your color is now corrected. Yes, I know...your welcome.

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Click Here

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I would check the main power supply for a bad filter cap. That could cause the wavy lines. The different colors are probably a problem with the convergence circuit. Try resoldering the convergence ICs first. If that does not resolve it replace the ICs. Also check for low valued resistors in that same circuit or pico fuses.


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