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

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Kp-51ws500 Rear Projections TV - Blue rainbows and poor color

Blue Rainbows worsening on dark background. The color and sharpness doesn't seem as good when it was new 4 years ago either. Are the picture tubes going out?


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Re: Kp-51ws500 Rear Projections TV - Blue rainbows and poor color - Sony KP-51WS500 51" Rear Projection Television...

Tubes ok may need adjustment.

Posted on Nov 26, 2007

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Blue background with "rainbow" like

Check the info from this link to see it it applies to the rainbow lines from your TV.

Jan 04, 2011 | Sony KP-65WS500 65" Rear Projection...

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Picture is OK, but colors are off and there is a blue star background that shows on dark colors.

Hello, With most rear projections there is usually an alignment to do with the set up with your TV. This is so the red, blue and green projectors align together to give the correct colouring. This sounds to me what may be causing the outlining of the blue. This can also make it seem off colour. Look in the set up menu of the tv and see if you can find this alignment feature. Usually a cross will appear and you move a blue, red, and green cross with the arrows on your remote to align over the original white one. If this does not work, it may also mean that one of your projectors, that is the red, blue or green one may be failing causing the off colouring. Hopefully this alignment may fix it for you.

Oct 26, 2009 | Sony Grand WEGA KDF-60XBR950 60" Rear...

1 Answer

Kp-51ws500 all my channels have a blue hue to them Color adjustments on menu do not help TV is 5 years old, just started recently

if blue has retrace lines,turn down blue g2 control located through the front of tv after front lower bezel and cover boare removed

Jun 13, 2009 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Further assistance needed

I just replied you and here once again...

Please pull front speaker grill and find focus block, fixed at corner having 6 control knobs on it.
Find Blue Screen control knob there.
Put your TV in AV mode to get dark screen and just press Display button on remote to have AV display.
Now slightly rotate control knobs counter clock wise until thin lines (retrace) disappear. Job is done and put back speaker grill, press display button again to disappear screen display.

Dec 13, 2008 | Sony KP-51WS500 51" Rear Projection...

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Very fine blue lines veiwable when the background has black in it

You need to adjust (actually bit decrease) G2 volts (calls Screen volts) of Blue gun.
If you are familiar with big TV repair and have electronics knowledge then let me know to guide you further.
thank you.

Dec 13, 2008 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Colors no aligned

Hi Chin,
Please check faded color resistors (in big size) on D board and also check dry solder joints on D board.
If above seems OK then ICs STK-392-560 are suspected and needs to be replaced.
Let me know if you need further info.

Nov 29, 2008 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Blue rainbows lines

I can help you out because I have circuit details of KP-65WV600but let me know what does it mean of blue rainbow lines?
I would appreciate if you post picture of those blue lines to understand problem of TV.
Thank you.

Nov 24, 2008 | Sony KP-51WS500 51" Rear Projection...

1 Answer


Click here to find info on how to fix those lines in your TV. Be very careful when working on it, there are high voltages going around when the TV is ON.
Good Luck.

Nov 24, 2008 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Sony KP-57WS510 rainbows and arches

no the shape doesnt matter as long as the STK numbers are the same. I would make sure that the replacements are origional sanyo ICs as often the cheaper versions do not last very long.

Mar 18, 2008 | Sony KP-57WS510 57" Rear Projection HDTV

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