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

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The colors are out of focus, the blue and yellow are not aligned with the rest of the picture.

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The repair kit for that issue is at the following link. The kit contains the parts and the CD with instructions
http://servicemanuals.vstore.ca/product_info.php/pName/sony-kp46wt510-convergence-repair-kit/cName/convergence-repair-kits

Posted on Oct 08, 2009

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The top of the screen is yellow color then drops down in a swoop and more yellow and blue. otherwise picture is good, pushed the magic focus but it did no good. thanks for any help


The magic focus button don't work.The tv have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis alignment,have colors shadows or 3D pictures.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts,must be replaced on the tv convergence board to solved the tv convergence picture problems.The shop,will cost u $300-350 for parts and labors.

Oct 15, 2010 | Hitachi 65TWX20B 65" Rear Projection...

2 Answers

Can i realine the lens myself it has a yellow tint and yhe lettering is out of focus


If you have yellow coloring on everything, this is not a lens alignment problem. Either you have a color balance problem (weak blue) or the coolant fluid in one or more CRTs is going bad. The coolant liquid is supposed be clear, but with age it breaks down and turns yellow.

First, unplug the set and remove the back. Use a mirror if you have to, but look down at the top of each CRT using a bright light. They should be colored red, green or blue, with no yellow to muddy the color. That's a quick check on the coolant condition.

You can replace the coolant, but be very careful not to spill any inside the set. Broken-down coolant can short out electronics and cause a lot of damage to the circuitry, especially in the high-voltage sections. Some people prefer to remove the CRTs from the set for this process, but that is a considerable amount of work. Others use kits with pumps to remove the coolant, and work inside the set with reasonable precautions - if there is enough room. There are a number of good tutorials on-line, or at least there were when I last looked two years ago.

I recommend getting the color right before attempting the focus. Bad coolant may scatter the light and fuzz up the picture, so check that out first and post back what you find.

If you have yellow fringes on otherwise normal colored objects, the blue convergence is off. This will also make lettering appear out of focus. Most RPTVs have a procedure for bringing up a convergence pattern (a grid of dots) using the remote control. The dots should all be white or have very little color fringing. Follow the directions, and make small adjustments, then check the effects all around the picture. Correcting one section may cause a change elsewhere. Use a ruler to make sure the dots stay in the right place; otherwise you may end up with a distorted picture.

Caution to other readers: do not try to adjust convergence if you have a "bow-tie" shaped picture in one or more colors. This indicates a convergence amplifier failure, which must be fixed first.

Oct 12, 2010 | Samsung HCN5527W 55" Rear Projection...

1 Answer

Color is fine but in top right corner have blue and yellow distortion but the rest of the screen picture is ok


The tv have a problems known as a convergence problems,it dead.Any colors lines R,G,B mis alignment anywhere in the picture screen.The tv convergence board have dead 2 STK convergence ICS and some or all it resistors are dead.These parts must be replaced on the tv convergence board to solved the tv picture convergence problems.

Oct 09, 2010 | Hitachi 60DX10B 60" Rear Projection...

1 Answer

Picture is unclear color are off


there are a few things you might be able to do. First I would try the auto focus or alignment feature of the set. there should be a option in menu to realign the lamps.

May 24, 2010 | Sony KP-51HW40 51" Rear Projection...

2 Answers

I have a blue and yellow shadows in my picture and when i use the perfect focus all the colors are in line except the blue.


Sounds like the STK packs are bad. Maybe change convergance amps along with protect fuses or low ohm resistors on the PCB

Oct 13, 2009 | Akai PT5598HD 55" Rear Projection...

1 Answer

Yellow and blue color ruins total picture on 50" tv,can't get rid


lupe0112,

I'm no expert, but I think that you have a problem with the convergence of the 3 color guns. I've been working on a similar problem. As a first step, have you tried "Magic Focus?" The Magic Focus button for the Hitachi 53UDX10B is at the left of the small front panel controls that also include your RCA composite and SVideo connectors. Let the set warm up for about 20 minutes (as recommended by the user guide), and then press the Magic Focus button. When you press the Magic focus button, the set will auto align the 3 color guns. If this doesn't fix your problem, unplug the TV for at least 4 hours and try again.

Jan 08, 2009 | Hitachi 53UDX10B 53" Rear Projection...

2 Answers

Colors off


Set all convergence controls to center and then manually set all tubes to as close as possible to coincide with each other. Then, use those electronic potentiometers to fine tune the picture.

Dec 06, 2008 | RCA P60920BL 60" Rear Projection...

1 Answer

Loss of color picture


I have a blue-ish yellow ghost tint which just appeared on my 51" 51SWX20B made July 2002. Did the magic focus got a number 5 at the end. Did you get a number when you did the magic focus?

Dec 01, 2007 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

Blue and yellow color


Blue should converge on top of "yellow".Bad connection(s)

on blue convergence IC.Replace both IC's for durable repair.

Check pico fuses.Reset convergence alignment.

Oct 17, 2007 | Samsung HCL552W 55" Rear Projection...

1 Answer

Color Alignment


get a shop manual,it tells how to do the whole convergence process and how to store it to the rom memory to save it.

Mar 15, 2007 | Hitachi 43FWX20B 43" Rear Projection...

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