Question about Mitsubishi WT-42313 42" Rear Projection HDTV-Ready Television

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Redness in PIcture

I have had my TV for 4yrs and all of a sudden the screen has turned to a red blurr and there is a red vertical line on the left side of the screen. The redness has created red ghost images. If I turn the TV off for awhile it returns to normal, but only last about 5 mins and then it turns red again. What should I do?

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Re: Redness in PIcture

I'm very good with electronics and could do the soldering myself but i was wondering, do you have the instructions for the dis-assembly and where on the board the chips are? Also i was told by a local repair guy that i would need some kind of alignment codes. Does anyone know anything about that?

Posted on Jul 01, 2008

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Re: Redness in PIcture

This is a failure for the convergence amps.. Replace both STK392-110 amps using STK392-150's instead for greater reliability and then re-converge..
If you're taking this to a shop to have it done it's not that expensive of a repair - but make sure you get your estimate in writing and make sure you relate to the tech that you want the 150's instead of the 110's...
Have a great day!

Posted on Dec 08, 2007

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VIZIO 42 CLASS RAZOR LED SMART TV M420KD picture has lots of green ghosting and thin white vertical line through left side of screen also

Hi Charlene,

please try with video input from any device,and i think you are using local antenna and it has gain problem or your tuner section of the tv is not working correctly.
if distroted pictures comes with video input signal it is video amp and processing unit problem.
you have to go for repair shop for fix that.

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1 Answer

Redness in picture

The Convergence amps in this TV set will need to be replaced. This is a typical repair that has to be repaired in almost every tube type projection TV set ever made. Not really a hard job, but a knowledge of printed circuit boards and soldering will be needed and if you do not have the soldering and unsoldering skills, leave the repair to a pro. A repair such as this will run anywhere from 225 up yp 400 bucks. Good Luck and let us know how this repair worked out for you.

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Sony Trinitron 20" TV (KV-2093R) Suddenly Shut Off

2 things that will cause that vertical IC or Yoke! Listen to this one went on service call 2wks ago Customer had a 50 INCH1988 pioneer big screen replaced 3 capacitors resolder poor connections TV is now working like New ?

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Sony rear projection screen is red then tv shuts off

Can be 1 of 2 things. 1st the red tube just needs the voltage to it turned down. In the front of TV (you have to remove the lower front half of TV to access it) is a plastic square with 6 knobs. The from left to right top knobs control focus for blue,green red. The bottom knobs control voltage to each tube in same order (so lower right knob for red) turn SLOWLY to left to reduce voltage until excessive red and lines go away. If you over turn left or right set will turn off. If that does not fix it or if lines reappear then option 2 is that red picture tube is failing outright and needs replacement.

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I have a thin red vertical line on the left side of my Philips LCD TV

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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

Screen turns red after 10 minutes

First, lets see exactly what is happening and what is causing it. If your picture starts out fine, and after 10 minutes or so you notice that the picture is getting redder, and the redness slowly gets worse and worse, until finally there is red everywhere with faint curved lines, then chances are your Red Screen control is set just a hair too high. This is a very simply thing to correct. If, on the other hand, the picture is fine for 10 minutes or so and then suddenly flashes very bright red, followed by the set shutting down, then your red picture tube has developed a short in it, usually between the heater and cathode. A good tech might be able to remove the short by arcing. What is your set doing? The KP-51WS500 is one of the newer 16x9 1080i HD sets and the tubes are available from any Sony distributor. When they told you the tubes are not available, that was their way of saying they do not want to bother helping you. The Sony tubes are quite inexpensive, costing about $175, and they come complete with sealed coolant chambers, so replacing a tube is quick and simple.

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2 Answers

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I had the same problem with mine 2 years ago (TV was 1.5 years old at that time) I had extended warranty on TV and it was fixed by Sony at no cost to me. Now yesterday I have another problem with it. All of a sudden screen went BLUE. No Sound either. It could be the CRT (That's what I read here) Out of luck this time. Will call local Repair shop (70 miles away) and see how much it will cost to fix it. Good luck.

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1 Answer

No picture/vertical lines on screen

it's called retrace lines ,your screens are set to high or focus block assy which has the screen adjustments on it also is faulty

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