Kp57wv600 sony tv with red background and red dominance.

the blue electron gun is failing. Time to get a new tv

Your red tube is weak or defective. If weak, gain can be adjusted up on the red tube.(cheapest cost) If red tube circuit is defective that will have to be fixed by a technician.(cost between $100 to $200) If tube is worn out, it will have to be replaced(250 to 500). Any work should be done by a qualified tech. Prices will vary depending on your area.
If set is over 5 years old, I recommend replacement.

CRTs use 3 "guns" to mix the 3 "primary" colours (RED, BLUE, GREEN). One of the other guns has stopped working, leaving the RED gun as the "dominant" colour.

Spend $30, and buy a pre-owned 15" LCD monitor.
Or, spend $100, and buy a new 17" LCD monitor.

one of the color guns has failed there are 3 RED BLUE GREEN So red and blue make brown theres how it becomes sepia in color

I had a television that went to a bright shade of blue.A friends neighbor worked for sony television plant where the new tubes came down the assembly line.His job was to make sure tubes were working fine,if one color was dominant then his job was to smack the front center of the tube with a rubber mallot to fix the problem.He suggested i try that with my tube while the set was on.It worked and solved my blue problem.Apparently he explained,the gun connections in the tube came loose and to fix it was to smack it this caused the connection to reweld itself.For you I would use the palm of an open hand and smack the tube dead center with a good hard smack.Dont be afraid of breaking the glass because its very thick and strong.Give this a try.Hope it helps.Good luck!

you will need to call an electronic repair shop to get this problem resolved

remove the front speaker assembly and the small access panel behind it and you will see a small square control assembly with 6 dials on it 3 control the color guns and 3 control the 3 gun focus. Try turning down the red control slightly they will be set up just like the CRTs red green and blue.

More than likely you don't have to replace the CRT. Go to this blog for instructions for how to fix the most common problems.
http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

At the bottom of the page there are comments from users. There are several users that explain how to take off the front panel and where things are located. The model KP57WV600 is different than the pictures in the blog, including the fact that the order of the red, green, and blue adjusters are different.

If you try it and it's not successful and you still want to try to replace the CRT yourself, google KP57WV600 service manual and you can buy it for $9.99 and download it right away.

I wish you well.

these tv's have a problem with bad crt's you could try to replace the red but a better choice would be all three

Be very carefull replacing the fluid as leaks will short stuff out and are messy.