Sony KP-51WS500 51" Rear Projection Television Logo

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

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Have a sony kp 51ws500 with a perfect picture for 30sec than the picture fade to a blue screen bow at top and bottom for 2 min than turn off red power blinks

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Replace TDA6120Q on the blue CRT board.

Credit: http://www.repairworld.com

Posted on Nov 26, 2010

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0helpful
1answer

I have a Sony KP 51WS500. When I turn the TV on, the picture is beautiful. However, after 1-2 minutes, the picture "smears" and I have red horizontal lines everywhere.

Hi,
Sounds like the red picture tube is acting up, there is a voltage control in the front of the tv ..you have to remove the front bottom cover of tv.Depending on model some have screws along the back side,others have 2 screws on the front at the bottom, usually hidden by plastic disks covering the tops.There are wires attached to the front so carefully remove.should be enough slack to just set aside. There is a small door held on with several screws. remove that and you will see the voltage control. It is a plastic square with 6 knobs. Get a good look at it each tube has 1 focus and 1 screen control you want the screen. sometimes the block is put in upside down so that the right knob will actually be for red, and not blue. slowly turn the control to the left, this will decrease voltage. if you turn too far the set will shut off. if it does just twist knob back the other way and try turning on again. You want to turn just enough to make the lines go away. If they won't go away the tubes are shot. If they do go away it might be only a temp fix, usually tubes cause the problem it's just a question of how bad they are. Good luck!
0helpful
1answer

Picture fades in and out to the color blue. sometimes entire picture is blue

id check the blue screen control first
its at the bottom of the set you will have to take the front panel off and behind it is another small black panel remove that one
and to select any function those controls need to be attached so slide that front panel to the left there and take you remote put the tv on video input
and there are sic controls on this little black screen control block
look for the screen controls and turn the blue one just slightly clockwise and you will see the blue screen will light up and you will have little arched lines turn the control back slowly till the lines disaper and the screen goes black

and then cycle the set off give it five mins or so and restart it and see if every thing returns and your video is being displayed then switch it back to your input and view and reassemble
0helpful
3answers

Screen turns blue

it seems as if many models of sony happen to have the same problems!!!
0helpful
1answer

Sony kp 51ws500 Screen fades to blue

the tuner is going out on it or has gone out and yes its fixable
3helpful
3answers

KP-51HW40 Sony 51" Fades to blue screen

The service manual on page 8 shows how to adjust the Red/Blue/Green screen voltages. To get to the adjustment board, take the front speaker grill off (two screws at the bottom left and right) and set it aside. No need to disconnect any wires. Then remove the plywood board with 4 screws that exposes the screen/focus adjustments. The top 3 adjustments are for focus, and you need not mess with these. The bottom 3 adjustments are for Red/Blue/Green screen voltage rough adjustments. My screen showed red lines, so I had to turn the bottom right adjustment with a philips head screwdriver just slightly until the red gun retrace lines where no longer visible.
0helpful
2answers

Kines on Screen and Fading

Open up the front of the set by removing the speaker screen and the black piece of particle board. on the bottom right you will see 4 knobs. Turn those knobs slowly till the arcs go away. The 3 knobs on the bottom are for color. the 3 on top are for the focus.
0helpful
1answer

Convergence problem

did you try to do convergence thru the menu system?
0helpful
2answers

Sony KP-51WS500

does it have blue video image?
0helpful
3answers

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!
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