Question about Sony KP-57WS500 57" Rear Projection Television

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Blue and red work good the green bows up and down on end

What can i do to fix this or how much it well cost to fix it

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This is a convergence problem that could be as simple as bad connections on the pins of the convergence ICs or defective ICs. If you can solder, you can fix this yourself. The parts should be around $25-$50. Let me know if you wish to attempt this repair and I'll supply additional details and instructions.

Dan

Posted on Nov 17, 2008

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The screen is red blue and green static like dots


Ur tv convergence are dead.Must know how to solders?Must repalced 2 STK convergence ICS,and some or all it resistors.Tries websites Tv repair World.com,Tvrepairkits.com to buy a convergence kit to rerpair the tv ur self.The shop will cost u $300-350 for parts and labors.

Apr 22, 2010 | Philips 60PP9202 60" Rear Projection...

1 Answer

3 screen colors have separated and screen is bowed in the middle.


I take it this is a projection TV. so they use three lensed CRTs red green and blue. you should have a setup screen that projects a grid pattern. red green and blue. there is SOMEWHERE a adjustment that overlaps the three projected grid patterns. Making a WHITE single grid pattern. red green and blue make white light. Pin cushioning is the bowing. you may find a POT to adjust on the back of the set. I have no idea what set you have.
Lastly.. Pin cushioning can also be caused by faulty flyback transformers.
Hope I could help.. new here LOL
Happy Fixing =)

Jul 12, 2009 | Projection Televisions

1 Answer

Wont autofocus, bow in blue color at top, cant adjust blue convergence


hello it's the convergance chips my be the problem get a quote from an engineer its a big job 2 do yourself trust me i've repaired a few my self i hope you get it fixed good luck

shaun

May 21, 2009 | Samsung Projection Televisions

1 Answer

Cheap Fix?


I will strongly advise you to replace the two STK392-120 as a pair. and this will cure your bowing picture problem. You may need to re-converge your set. best of luck.

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2 Answers

Convergence


sounds like you have a problem only with red and green. Does the picture bow? if the Picture bows then most likely you have lost all convergence. then is will be a convergence power board issue that will have to be replaced or repaired. If you go into setup and try to manually adjust convergence does the crosshairs move up and down side to side on both red and blue if they do. then you may just need a technician to adjust convergence in factory mode

Mar 09, 2008 | Projection Televisions

1 Answer

Mitsubishi Vs-6047 Convergence Problem...Please Help!


usally convergence green is split between 2 ics. so if your blue and red are still good. it might be the green output resistors. The

Jan 08, 2008 | Mitsubishi VS-6047 60" Rear Projection...

4 Answers

Sony KP-46WT510 Rear Video Projector Convergence Problem


Subject

Video bowed in, convergence out, PS5001

Symptoms / Customer Description
Video bowed in and convergence is out.
[Primary Symptom Code: 1436 ]

Solution

Found PS5001 on G board was open.

HQ Comments: Could be cold solder joint on one of the STK IC's on the D Board. They run hot and the solder connection might have broken down causing intermittent condition which could have opened the fuse on the
-22v line.

You can find the full repair manual Here!

Nov 18, 2007 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Zenith 50" R56W36


maybe on your remote press menu and find converence and use the keys to move the red first over the green then move the blue over the yellow ..by standing back and just using the remote....should end up with white lines. and dont hit that button again once set. a tech should do this quickly and charge you minium.

Aug 16, 2007 | Zenith R56W36 56" Rear Projection...

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