Question about Sony KP-46WT500 46" Rear Projection HDTV-Ready Television

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Sony big screen tv, no color

Picture fades out to a blue screen after a short period soon as turned on.

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Re: sony big screen tv, no color

My tv looks blurry and i dont know how o fix it.

Posted on Sep 06, 2008

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Re: sony big screen tv, no color

Focus block or neck boards on thr picture tubes

Posted on Nov 15, 2007

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Turn on the big screen sony tv, but fades to blue

You probably have a bad BLUE CRT. Due to the cost and the length of time it would take to repair, I would not invest the money into it. It would require a Qualified Service Person to come to your home and remove the BLUE CRT assembly and send it back to SONY to be rebuilt. Estimated cost would be around 800.00. I would check prices of a replacement set.
I hope this helps,

Oct 27, 2009 | Sony KP-46WT500 46" Rear Projection...

1 Answer

TV screen Flashes blue and then shuts off.

When it flashes blue, are the flashes bright blue lines going across the screen with the picture in the background, if so, It sounds like the Blue tube or blue driver circuit is breaking down after a short period of time. If this is the case, the uPC that controls the set is detecting a large current drain on and is shutting the set off for protection, An engineers expert eye is required I`m afraid. Ian.

Jul 24, 2009 | Sony KP-65WS500 65" Rear Projection...

2 Answers

Screen fades to blue.

The Blue SCREEN setting is too high. These adjustments are located inside the TV behind the front panel. There are two screws behind covers and then a wooden panel to remove to access the adjustments. The leftmost set are for BLUE, the middle are GREEN, and the right are RED. The top row are FOCUS and the bottom are SCREEN. Focus will focus/unfocus the tube and Screen will adjust the power of that tube (there are 3 tubes, one for each color). If Screen is adjusted too high, horizontal lines will appear (my TV had red lines, but I played around with the knobs and saw that it could happen on any of the colors). Additionally, if SCREEN is set even higher than that, the tube could go so high that it turns the whole screen that color (in your case, blue). If this happens the TV will shut down, probably due to either overheating or overvolting. To fix this issue, turn the appropriate SCREEN dial down until the lines go away. In your case, you want to turn the lower left dial down. Don't turn it too far down, if you turn it more than necessary the TV can give you an AKB error (noted by the STANDBY light flashing a sequence of 5 blinks).

Apr 02, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Picture comes on then fades to blue

Check the info from this website to see if you are able to fix your TV. You should turn the blue screen control down slightly counterclockwise. If that did not work, then more likely you have a video amplifier IC defective or a blue CRT.

Dec 19, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Blue screen sony

blue crt shorting use crt restorer to lift short or replace picture tube /crt

Aug 19, 2008 | Sony KP-46WT500 46" Rear Projection...

1 Answer

The picture on my Sony KP57WS500 is starting to fade to blue after being on a short period of time. ANY IDEAS?

Good Day;
A blue picture after it's been on for a bit is normally one of several things. The most common for your Sony is the CRT, tube, the second most common problem is the blue CRT 'IC'(chip). The IC is located is on the blue crt board.
The best way to determine this is to remove the speaker grill(on front of TV), then inner panel, the blue tube will be on your right hand side. Remove that little board at the end of the tube.THIS AFTER YOU HAVE UNPLUGGED THE POWER FROM THE WALL. Plug TV back in turn TV on. If TV comes on with picture and there is no blue in the picture, The tube is bad, if TV turns off it's the IC.
Good Luck, BI.

Jun 18, 2008 | Projection Televisions

5 Answers

No picture but has sound

switch on no picture but short period of sound then nothing

Jan 20, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Sony KP-51HW40 51 in. Rear Projection turns blue

First reduse the G2 voltage for the blue c.r.t,and watch if the unit works for longer period (offcource blue colour will be not present).After reducing G2 voltage to blue c.r.t still behaves the same than c.r.t is faulty and you have to replace.
Pls count the red led blinking when it goes off,incase it goes to std by mode.

Dec 14, 2007 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Sony Kp-51hw40

Sounds like a bad solder connection in the sweep power supply. Not a repair for the novice I'm afraid. If you get it fixed before the set goes out completely, it should not be that expensive of a repair. Good Luck

Jun 03, 2007 | Sony KP-51HW40 51" Rear Projection...

3 Answers

Picture then fades to blue.

Please post me on this as well. My Sony just turned 4 yrs this Jan and just last week it started having the same problem. -Thanks!

Mar 02, 2007 | Sony KP-65WS500 65" Rear Projection...

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