Question about Sony KP-51WS500 51" Rear Projection Television

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Colors out of alignment; curved lines

In a comment a guy said he aligned the tubes/projectors manually (or was it the lamps?). i cannot align the colors with the three screws. do i need to align the tubes manually? how do i go about it?

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Re: colors out of alignment; curved lines

Please stop where you are! Expert technicians rarely align manually = only when CRT changed or someone tries to
correct an electronic anamoly mechanically........
Curved lines are caused by defective IC's = STK392-560....
Found mounted to heatsinks on " G " PCB.........T.

Please rate solution offered and ask for more help, if needed.

Posted on Nov 12, 2007

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My RCA P52937SG projection tv. Picture distorted. I beleive it has to do with the green circuit / projector. Everything needs to be aligned to green. Green projector is on, but, in alignment screen I get...

The tv have a problems known as a 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 is dead.The tv convergence board must have replace the 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

Mar 28, 2011 | RCA R52WH73 Projection Television

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Colors out of alignment; curved lines

Marilee, you will need to check on the service manual schematic of what types of voltages you have on the IC's now. Most of the time, there are whats called pico fuses that blow out when the convergence IC's blow out. They are located on the G board, and are yellow in color. They look like small resistors. Check them for continuity after you replace the IC's. By the way, did you use good replacement IC's for the convergence? There are all sorts of aftermarket types and factory rejects being sold out there via the web or from local electronic parts distributors. Make sure they are the original types. If you know how to read a schematic diagram, but do not have the service manual, let me know, leave an e-mail address, and I will be happy to send you some info on the replacement of the ICs as well as the factory service manual. Good Luck!

Nov 25, 2007 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Green line on left side of an image and a red line on right. Such as around a face. Colors just don't line up and picture is very fuzzy. Had another old rear projection and it had a way to align it. Can...

Your other model was more than likely a CRT projector where you coulod manually align the Red/Green/Blue guns. The one you have now is more than likely an LCD projector which can't be readily aligned. Sounds like the panel is failing.

Mar 13, 2011 | Zenith R57W46 57" Rear Projection...

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Picture is bowed inward and looks like a 3d image without the glasses. I also have a green, red, and blue line curving across the top of the picture.

Looks like the focusing lens may have moved a bit or the projector lamp has gone weak. Get a technician to check up the projector.

There's very little you can do here.

Mar 05, 2011 | RCA D52W20 52" Rear Projection HDTV-Ready...

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Tv works but picture color is off and its kinda dark looking there is no duel image so i know the color tubes are ok but there is a problem it almost looks like someone took a magnet to it

You have two problems, you have a convergence problem, the convergence board needs repair, and the other problem is the coolant needs change in the guns, (CRT's) and you are looking at 500 on repairs, you would be better off getting a new LCD.

Mar 02, 2011 | Philips 43P8341 43" Rear Projection...

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My screen has little dots appearing sometimes red sometimes blues behind the picture i just replaced the lamp bulb as i thought it would cure the problem

the projection tube needs to be adjust for color alignment, each tube (red, green, blue) must be aligned so you there would be no color smear appear on screen. if it is aligned try to set up the color balance, hue etc.

Feb 06, 2011 | Samsung Projection Televisions

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The red and blue projectors aren't aligned with the green projector. It is more sever towards the top of the screen. The green projector also has a curve in it at the top of the screen.

this is called convergence.
the set should normally have a function in the menu to adjust/reset this.
it sound like either the mirror in the tv is warped or the green lamp is out of alignment. if the convergence in the menu doent work then its a service job.

Feb 07, 2010 | Hitachi 61SWX10B 61" Rear Projection...

1 Answer

Picture is doubled and color has pink tint

The inherent problem with rear projection TV's.

It sounds like the projectors need balanced (or a lamp is failing) and aligned. The alignment can inadvertently be changed when the TV is moved, and seldom "just happens".

Any decent TV repairman can perform the required service. I would shop locally for one.

Dec 27, 2009 | Hitachi 53UWX10B 53" Rear Projection...

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Adjusting the convergence after replace convergence chips

Hello fmnii,

Believe it or not the easy part was the replacing of the convergence amplifiers. Now for the hard part, static and dynamic convergence of the TV. To do this, what I usually do is not trust the onboard cross-hatch and alignment patterns, for this I use a signal/pattern generator to create the cross-hatch and alignment patterns. I follow the static convergence instructions first, and then the dynamic convergence instructions. This process taks about 6 - 12 hours (Yes 6 - 12 hours) if done correctly. I say use the instructions because each TV set is different. It sounds like you have your static convergence well in hand and you just need to do the dynamic.

If you can, try to get a signal/pattern generator (I use the VA62A).

I wish you well,

Thank you,


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Fuzzy Blue...?

these set are bad about the blue tube messing up.. what happens is the convergence board witch generates alot of heat cooks the blue glycol.... basically growing algea in the blue tube... it is possible to remove the tube.. and remove glycol and clean the tube then replace and adjust..i have done a few here at the shop

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