Sony KP-51HW40 51" Rear Projection Television Logo

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Posted on Nov 06, 2007
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Sony kp-51hw40 it has red and green lines through picture

  • 4 more comments 
  • giantsfan71 Nov 09, 2007

    i have green lines in an circular fashion

  • bobo4 Dec 13, 2007

    I have green lines too but don't know how to get the front panal off to ajust need help!!!!!!!!!!!!!

  • Anonymous Mar 26, 2008

    Green horizontal lines also that curve at the ends. I need to know how to remove the speaker cover in order to adjust the "focus pack", I can reach it from the back but I can't see what I'm turning.

  • Anonymous May 03, 2008

    green lines that are curved.

  • samazf Aug 27, 2008

    You say to remove the front panel - how?

  • skuzleb Nov 12, 2008

    I have the same problem with the lines, but mine are red, and it also seems to saturate the rest of the picture at times.

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3 Answers

Eduard P

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  • Expert 71 Answers
  • Posted on Dec 06, 2007
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Yes you have bad green and red crt but with an adjustment you can still use it. remove the front panel and you'll see the focus pack (it;s a black piece with 6 rotating knobs on it. Adjust clock otherwise the red and green screen (the bottom line knobs) till the lines has gone. The better way to check it is to adujt in video input with no signal, just black screen.

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  • Master 1,694 Answers
  • Posted on Dec 04, 2007
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Replace convergence STK392-560 IC's....................T.

  • Vista Electronics Dec 04, 2007

    giantsfan71, your set might have bad CRT .........................T.

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  • Posted on Jan 04, 2009
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2 Related Answers

Anonymous

  • 3130 Answers
  • Posted on Apr 22, 2006

SOURCE: Picture Quality

without seeing a picture I can guess that you may have a shorted green crt or the drive going to it has changed and you may need to turn down the g2 control for the green. If the tube is shorted or bad see what type of warrantee you have on the crts as some sets have two to 5 years. Good Luck

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Anonymous

  • 119 Answers
  • Posted on Dec 21, 2006

SOURCE: Sony KP-51HW40 No Picture, only sound

how many thimes does the light blink, it's an indication as to where you should start looking for the cause of the problem

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Related Questions:

0helpful
1answer

I have no picture and the power light flashes green and then red.

Hi,
I can help you to solve your Sony tv problem.
Is it Sony KP-51HW40 tv or any other model?
How many times red light start blinking after three seconds long pause?
Let me know to proceed, can you check voltages with multimeter in tv circuit board?
Thanks.
0helpful
1answer

Front fabric panel

I have a Sony KP51HW40 TV that I am parting out. I could sell you the whole front panel. I also have the green and red picture tubes.
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
4answers

Green flashes then tv turns off

or a new lamp. you could first replace the lamp.
the screen might work fine for a couple of seconds, but then it fades away or deteriorates. This means the lamp is going bad.
0helpful
1answer

RED AND GREEN LINES HORIZONTALLY ACROSS TV

This sounds like you may have bad picture tubes. Most likely the green and red tubes. You would have to have them replaced and realigned. I would call a Sony ASC and get an estimate to verify this. An onsite service call could verify if this is what's causing your problem.
0helpful
3answers

Sony KP-51HW40 No Picture, only sound

to thus problem its very simple .! try to resolder at the back of the picture tube board.
1helpful
1answer

Picture Quality

without seeing a picture I can guess that you may have a shorted green crt or the drive going to it has changed and you may need to turn down the g2 control for the green. If the tube is shorted or bad see what type of warrantee you have on the crts as some sets have two to 5 years. Good Luck
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