Question about Sony KP-51HW40 51" Rear Projection Television

1 Answer

KP 51HW40 projection TV

When we turn the TV on there is a blue screen with wavy lines through it and we do have sound but within a second or two at the most it shuts off.

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  • 1rodya Sep 30, 2008

    I have the same problem. The picture comes thru for a few seconds then the screen fades to blue then the tv shuts off. What do I need to do?

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  • Sony Master
  • 3,459 Answers

Projection TV sets have two very common problems listed below.

Problem #1) Convergence


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

KP 51HW40 projection TV - bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Posted on May 07, 2010

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Posted on Jan 02, 2017

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Related Questions:

1 Answer

My KP-51HW40 clicks off after running for a period. The red power light blinks when it goes off but screen stays dark. When TV is shut off for a while it restarts and runs fine. The "On"...


Hi,
KP-51HW40 shuts off due to incorrect white balance and blue arch lines is an evidence of that incorrect white balance. I hope tv standby red light would flashing 5 times then 3 seconds pause and again 5 times when tv shuts down.
This is rear projection tv that has three picture tubes (red-green-blue) inside to generate picture that projected at front screen. These three picture tubes must be drive with correct drive voltage to produce good picture of each color.
Solution for your tv problem is Screen Voltage adjustment that can be done easily if you are handy with electronics stuff repair.
Let me know your expertise level to guide you more and if you feel unconformable by tv repair then local tv repairman will help you to adjust white balance in tv.
Hope these info will help you.
Let me know if you have additional questions.
Thanks.

Nov 05, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Screen turned orange, heard a sizzle sound tv


A capacitor has burned out. It may be on the motherboard or power supply.

Jul 09, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

TV turned off itself


Can you still turn it on?
If so, does it stay on with sound?

If the sound is ok and the picture is blue (even when changing channels, inputs, etc.) the lamp may have gone out.

Can you see the TV menu when you press the menu button on the remote or TV?

Jan 07, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Blue screen


This is easy to fix, pull off the front grill and turn the bottom left trim pot anti clockwise until the picture comes back. I am asuming the picture there and then it fades to blue. There is a step by step instruction on how to get the whole thing apart http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

Sep 15, 2008 | Sony KP-51HW40 51" Rear Projection...

3 Answers

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.

Aug 26, 2008 | Sony KP-51HW40 51" Rear Projection...

2 Answers

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.

Jun 30, 2008 | Sony KP-51HW40 51" 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...

1 Answer

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


Hello......
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.
Gopali

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

1 Answer

Kp-51hw40 problem


your blue tube is shorted unplug blue crt board see if set comes on and stays on!

Nov 07, 2007 | Sony KP-51HW40 51" Rear Projection...

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