Question about Sony KP-51HW40 51" Rear Projection Television

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After 5 minutes of good use screen goes redish color

When i turn on tv all good.5 minutes later screen slowly gets red all over. do i need a new lamp? Or is it a washout lens deal?

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  • 308 Answers

It certainly sounds like the Red CRT (picture tube) has heater-cathode leakage and is not likely worth repairing, as all 3 tubes usually have to be replaced at the same time for best picture quality.

Posted on Feb 11, 2007

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Posted on Jan 02, 2017

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1 Answer

The screen turns blue after about 2 minutes of turning on the TV


Sony TVs has an Optical Block issue. If there is an issue with the optical block, then there will be green, blue patches or tint on the TV display. Try resetting the TV to the factory settings and try Power resetting the TV. Turn Off the TV and remove the power plug from the wall outlet for 1 minute and reconnect it and check the operation. If the issue still persists, then TV may require service. You can contact the Customer relations team and check for the available options. Sony had repaired free of cost for such issues. Hence, contact the customer relations.

Jul 25, 2010 | Sony KP-57HW40 57" Rear Projection...

1 Answer

53 inch projection tv...seems like the color red and color blue have shifted giving me a picture with red and blue shadows


For CRT projection TV's, this indicates that the Green picture tube is burned (warn out). The less green that strikes the screen, the more redish the image will look. You will need to find an old school TV repair shop that knows how to replace picture tubes.
In the case of a DLP style TV, the color wheel needs replacing.

Dec 29, 2009 | Hitachi Televison & Video

2 Answers

My tv no longer shows the color red. No idea what


I have sound but my tv screen is black. Sometimes when I turn on the tv I get a picture but after 15 minutes or so the screen goes black again.
It's a 4 year old LCD.

Nov 23, 2009 | Samsung LE40R73BD 40 in. HD-Ready LCD...

1 Answer

Screen blanking out, turning everything redish, or blueish, etc.


the IC on the board needs replacement  as they r at there last stage.

Jan 05, 2009 | Hitachi 51F59 51" HDTV Projection...

1 Answer

After a few minutes the color goes to intense red and green


My tv didn't turn green, but the red separated significantly. It started off happening after a few minutes of being on (I suppose the defective part was "warming up"), then it got to where it was like that immediately upon turning the tv on. In my case, I had to pay a tv repair man $350 for a new part. There are 2 microcircuits that control the color alignment--one that controls the red only, and the other controlls the other 2 colors, blue and green I believe. Maybe your part is the blue/green controller, mine was red. The repair man said these parts fail so rarely they don't stock the part. The cost of repair may be different for a different part, but either way you have to choose if it's worth that cost to you. If you get rid of it, I'll buy your tv stand ;-), I bought mine from a friend and didn't get the stand in the deal.

Dec 14, 2008 | Mitsubishi WT-42315 42" TV

1 Answer

Mitsubishi cs-40503 tint problem


internal codes are good, but when the is like what you post then a tech is what you need.it seems that one of the problem is the flyback transformer or the CRT cap.have a tech check you unit.

Sep 08, 2008 | Mitsubishi CS-40503 TV

1 Answer

Red picture


I would just call westinghouse and lie saying that you are still under warranty. Everything I have read about their tech support screams poor communication, confusion, and lack of manpower, so it would probably work.

Apr 12, 2008 | Westinghouse LVM-37w1 37 in. HD-Ready LCD...

1 Answer

Color changes


Your tv has three crt guns that correspond to how it makes colors.

If its just one color acting weird it might be the crt gun for red. That sucks cause it will be hard to replace. I think its possible to fix it but it might not be worth it... Sorry...

Feb 20, 2008 | Mitsubishi WS-65807 65" Rear Projection...

1 Answer

JVC 48WP74 HDTC rear projection


While it is true JVC tubes rarely fail, they can give trouble.
Another possible solution is bad screen / focus block......
Remove lower front grill panel and access board...Check for
smooth adjustment of RGB screen and focus.....let me know....T..

Sep 28, 2007 | JVC AV-48WP74 48" Rear Projection...

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