Question about Sony KP-43T70 43" Rear Projection Television

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Sony KP-43T70 Was watching the televisionand the screen shut down and the volume as well. Now there is a red light that stays on continuously. Please Help.

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Re: sony KP-43T70

A steady red light is an indication of a power supply regulation problem.. Its not a job that can be done by a do-it your selfer or an end user. Sorry man those days are done. You should for your health and best interest, seek out a local TV repair peep to assist you with this repair.

Posted on Sep 13, 2006

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Lamp part number

KP-43T70 is a CRT based rear projector and does not use a Lamp like newer LCD/DLP projectors. It uses 3 (Red, Green, Blue) glycol liquid cooled CRT's (like the picture tubes of yesteryear) to produce the image/light as opposed to a Lamp.

Nov 27, 2013 | Sony KP-43T70 43" Rear Projection...

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Sony kp-43770 tv red and green colors will not align how do i correct this,i have used the focus button no success

convergence chips will need to be replaced and I think model number is not correct that was posted, kp-43t70 instead of kp-43770?

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I have a sony rear projection Tv 43 inch about 13 years old the red light in front blinks continuously when the on button is pushed and nothing else happens\r\ndue to it's age will I be able to get it...

It has been quite sometime, that I have repaired this TV. In one case the audio IC with standby is bad. The symptom you describe, is my first area of trouble shooting. You may resist the temptation to replace this TV. I understand. It would be better to replace this TV. Sony is a unique TV, and parts for this may be substituted with non originals. Even if this set is repaired, it will be a matter of short time that it will go down. I would certainly shop for a new Sony flat screen TV. Your chances of having a long running TV is in your best interest. Thanks for asking and show all hands of support!

Aug 15, 2011 | Sony KP-43T70 43" Rear Projection...

1 Answer

Sony KP-511HW40 fleshing with green color and shuts off

this is a common fault adjust the little black box in front behind the small wooden cover. you will see 6 controls don't adjust any of the top 3 only the bottom knobs 1 for each color. slowly back the control counterclockwise turn the set on and wait untill it shows a picture, slowly adjust the control for the color in question utill the color balance is correct- black and white with the color setting turned down all the way with the user menu when balance is ok you are all set.. turn the color back up with user control. rtepeat process if needed.

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4 Answers

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.

Aug 23, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Kp-43t70 red out of adjustment

It seems, from your description, that the convergence circuit is failing. The usual components that fail are the convergence integrated circuits.

Dec 20, 2007 | Sony KP-43T70 43" Rear Projection...

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Sound stays on & picture goes to blank screen

I do not see any reference on this problem and I even checked with Sony. If you are on a cable box, I suspect that is the problem.

Oct 25, 2007 | Sony KP-43T70 43" Rear Projection...

1 Answer

Sony KP-57HW40

Have a Tech. replace the focus/screen block if the problem continues you have a bad red CRT.

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