Question about Sony KP-57HW40 57" Rear Projection Television

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Turn tv on screen is light blue then picture fades then, screen shuts off???

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Blue tube is bad need to replace blue tube.. Tube no longer avail will need to be special ordered and my run from 350.00 up to replace part.

Posted on Mar 07, 2010

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TV FADES TO BLUE AND THEN PICTURE DISSAPPEARS- AND SOMETIMES TV SHUTS OFF AFTER GOING BLACK WITH CONCENTRIC GREEN LINES


Turn your screen drive down to green and blue tube.
You have a focus/screen drive control block that you can adjust each tube R/G/B

Mar 17, 2010 | Sony KP-65WV600 65" Rear Projection...

1 Answer

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,
Skyassoc

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

1 Answer

Full Color fading to blue then screen turns off. Repairable?


Here is what you need to do.

1.) You need to remove the entire plastic piece below the front of the screen. You most likely will find 3 screws on either side in back that you have to remove.

2.) The grill will not come out easy, pull from one side and then when it starts to come loose from the other side(there are several plastic pegs that hold it in.) Then from the bottom pull out( most of these sets have square plastic tabs at the top that tuck in.)

3.) With the grill removed locate the inspection plate behind it (it usually has 6 screws.) You will have to tilt the grill to the left and on its side as several cables are connected to it--they are held in place with trash bag like ties that you can release to get some room.

4.) With the inspection plate removed you will see a fairly small (about 3 inch square) BLACK PLASTIC BLOCK WITH SIX CONTROLS-usually they are marked with whiteout so someone can tell if they have been adjusted.

5.) You need to look very close at the block with a flashlight----usually the top three controls are FOCUS--don't touch those.
The lower three are usually marked Screen and if you look very close you will see b, g, r(blue green red)

6.)Usually the blue will be on the bottom left--it does vary

7.) Once you locate the BLUE screen control have the set on and turn it down--if the set is shutting down you may have only a few seconds to try to turn it down---usually to the left with the Blue Screen control.

8.) Best way to do this if the set is on is on a video input with nothing connected--you turn the blue down until the set stays on and then very slowly turn it up until you see a slightly blue screen with or without diagonal trace lines----if you get it to turn on this way turn the blue screen back down slowly until the blue screen and trace lines just disappear.

Let me know if you get it to work--Like I said if it is shutting down you may have to slowly turn the blue screen down a few times to get it to stay on.

I do this here for free and if this helps you at all give me a vote here--it costs you nothing.

Regards, SD TECH

Sep 17, 2009 | Sony KP-65WS500 65" 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

Picture and screen


http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

Jan 02, 2008 | Sony KP-51HW40 51" Rear Projection...

2 Answers

JVC Projection TV shuts down by itself.


47" JVC TV TURN THE POWER ON THERE ARE SOME BLUE LIGHTS THAT COME ON BUT NOT THE TV. THEN AFTER A FEW SECONDS THE BLUE LIGHTS FADE AWAY.

Dec 15, 2007 | Toshiba 50H81 50" Rear Projection...

1 Answer

SONY KP-57HW40


you are experiencing one or more of three things
1.the crt itself is damaged
2. the vertical ic on blue crt board is bad
3. the focus block is bad
if you hire a sony authorized technician they should be well aware of this problem.

Oct 22, 2007 | Sony KP-57HW40 57" Rear Projection...

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