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

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Screen slowly turns blue...

Like when a little kid holds thier breath... starts out great when you turn it on and in about 10 minutes the green gun is dark and the screen is all blye. How do I tell if it's the gun or the cicuit behind it? Can I switch the red and green guns just to test it out?

Thanks,

I'm holding my breath now......

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  • mcanirlin Jul 27, 2008

    This is truly amazing. I got this TV from Craig's list for free because the screen turned blue. Noticed that the color was a little over driver...retrace lines. Found the post on FixYa that told how to get rid of the lines and guess what? Pictures not blue anymore. Seems that if the color is over driven too much, the entire set tuns off. If it's overdriven a little too much it can shut down one of the guns. In my case it was the green gun. So, before you replace a gun, turn all those screws on the bottom row CCW and reset the set. I'll bet my set isn't the only one with this issue. THANK YOU FixYa. I'm going back to watch my TV now.....

  • shannonrenae Aug 24, 2008

    okay same problem here but my screen slowly turned blue and now is constant blue but you can hear what is playing. I called around and no help and I was informed I needed to change the tubes..red and green..only I cant find the parts anywhere and I really REALLY want my tv back before the NFL season is in full swing..btw I am a woman so please speak lamemans terms to me if solution available and yes I also had the squigly lines before the screen starting fading but I tried the flash focus and nothing happened and I cleaned out the back ..help HELP before the season starts.

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I had blue lines showing up on my screen, then the other night my screen started to flutter the blue, bright to dim and back. So I followed this link to resolve the blue lines and the blue flutter was resolved as well. Hope this helps.

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

Posted on Aug 12, 2008

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1 Answer

The only color I have on my tv is green. How do I fix this problem


mcid1515,

If you have an older set you probably need to turn up the screen drives on the red and blue guns. The largest part of the color signal is the green with red and blue much less. If the gun drives put out less as they age, and they will, periodically the screen drives need boosted. I have a tip at

http://www.fixya.com/support/r6814105-adjust_screen_drive_crt_projection_tvs

This will walk you through the process of setting the screen drives.

Thanks for using FixYa and for the great rating.

hardrocko

Feb 28, 2011 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

I gotta a green screen


It is possible that you have a shorted green CRT, you can remove the front speaker cover, and you will fine a focus block, and if you turn down the green screen voltage, very slowly, the green should turn down. if not then the gun (CRT) will have to be replace, If it does turn down, then go into the menu and turn the color are the way down and that should give you a black and white picture. If it is not black and white. adjust the red, blue, and green screen voltages until you receive a good black and white picture. Turn slowly they are touchy, and if turn to high, you will get retrace lines and the TV will shut down.

Nov 14, 2010 | Toshiba 61A60 TV

1 Answer

Need to clean lenses and do manual focus/alignment of guns on a VS-5055. How do I get access to them and adjust? Thank you.


the lenses are accessable by removing lower back of unit,clean them with a damp paper towel-wipe them off with a dry one.put back back on unit.
screen/focas controls are in front of unit.remove speaker grill remove black cover using phillips screwdriver.you will see 2 sets of controls.one row is focas.one row is screen controls.red,green,blue.turn each focas control slowly to get the clearest picture for each color.screen controls are touchy(if you turn then too high unit will shut off)if the black and white picture was good i would not adjust screen controls.if it was bad turn blue and green screens down all the way.picture is now red turn green up until it turns yellow then turn blue up until it turns white

Sep 19, 2009 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

Fix a color problem


What you want to do is degauss the tube.
I do not believe a supplier will sell a CRT to anyone thats not a TV Tech. Safety/liability issues. The CRT is vacuum sealed and will implode if broken and the tv has 25000 volts even after unplugged for several days !!!
A CRT may cost as much as a new tv.

Several methods some people have found useful are;

Soldering Gun Method (NOT soldering iron)

1. Hold the soldering gun to that the rear of the case is toward the screen (the tip is facing away from the screen at a 90 degree angle) A magnetic field is generated by the transformer in the handle.
2. Place the gun in the center of the screen and turn it on, keeping it near but not touching the screen (to prevent scratching)
3. Slowly move it to the top edge (or any edge), then slowly around the outer part of the screen (but still in front of the glass) until you return to the top (or the edge you moved out to), again slowly return the gun to the center of the screen.
4. Keeping the gun on, slowly pull it straight away from the crt until there is no more distortion visible (usually 3-4 feet), then turn the gun off.

Rigged Drill Method ( parts can fly off so take care)

1. Get a magnet and tape it to the end of a high RPM drill and make sure it is held in place very tightly, use Duct or packing tape
2. Hold the rigged drill next to the spot to be fixed, make sure it is about 1-2 inches away from the screen
3. Now pull the trigger an you'll see the screen blur fast, this is normal so do not worry
4. Whilst the drill is running, slowly pull away from the screen and you may see it is fixed
5. This process may need to be repeated due to magnet strength and drill speed but it will work
6. Due to physics the fast, random turning of the magnet/s will fix the screen's colors

Mar 27, 2009 | RCA Televison & Video

1 Answer

My TV Screen turns green or blue after 10 minutes of the tv on


You have a chip that is overheating due to heatsink coumpound being dried up. You need to find that chip and heatsink and apply new compound to both parts.

Mar 18, 2009 | Mitsubishi WD-73827 73" HDTV DLP TV

3 Answers

Flip Mino won't turn on!


I had the same problem. Here are the steps I took to fix it.

1. Adjust the power options on your laptop to ensure it does not sleep/hiberate ever.
2. Reset the camcorder by inserting a paperclip into the hole in the tripod mount. Hold the paperclip in there for about seven seconds.
3. Then immediately plug the flip into the cpu.
4. You may not see anything besides the little blinking white light on the USB arm for a while (about 30 minutes maybe) but leave it in.
5. Eventually it should spring to life and show the recharging battery on the little screen (the Flip Share program may start too.)
6. Leave it charging until the little white light stops flashing - full charge about 3 hours.
7. You can then remove the flip and change the power settings back to normal.

Feb 03, 2009 | Pure Digital Flip Video Ultra Camcorder

1 Answer

Hitachi 46510 blue screen-Shuts down


Good Day, 6slimshandy9;

Try and look this;

Shuts down at turn on, LEDs D955 & D956 come on & turn off asap, the rest of the LEDs on power supply will go off slowly.
Cause: Found QEA6 (2315381) and QEA7(2315391) shorted in Blue CRT PWB.

I hope this was helpful, big IRISH. Or try unplugging the blue crt socket and if it turns off. If it stays on suspect bad CRT.

Jul 29, 2008 | Hitachi 46F510 46" Projection HDTV

5 Answers

KP51ws500 turns green and shuts itslelf off


There may be several causes but, one is that when any color gun is being over driven, the Sony shuts down the gun to protect it. Try this. Remove the front of the set by removing the two screws from each lower corner. Next remove the black panel held on by 5 or 6 screws. Now you should see a panel with 6 potentiometers on it. Turning the ones on the bottom row CCW reduces the drive. Turn the color down and if all the guns stay lit, SLOWLY turn them up until you get the color balance that you like.

May 02, 2008 | Sony KP-51WS500 51" Rear Projection...

1 Answer

FADING TO BLUE SCREEN


Sounds like you have a problem with the blue gun in your picture tube or its drive circuit. You might remove the back cover and gently tap on the neck of the picture tube using a plastic screwdriver handle while watching the screen in a mirrow. If the picture flashes back on or on and off then the picture tube is the problem. If this is a projection tv you have three separate tubes : red, green & blue. you'd need to tap the blut one.Gently!!!! Stargazer

Feb 13, 2007 | Sony KP-53HS20 TV

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