Question about Sony KP-43T90 43" Rear Projection Television

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No good picture

My tv is 6years old. the picture is dull. you cant see it good in the day time. a little better at night. everybody wants me to bring it to the shop. its to big!!!! can you tell me what to do? thanks kim trask

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The life span of CRT television is about 30.000 hours. Please calculate and give me the feedback info. Thanks, Arpi

Posted on Mar 26, 2007

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You need to take it to the tech or call one that do home repair your crt neck board socket needs to be change.

Posted on Mar 26, 2007

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I have a three and a half year old Pioneer 50 inch Plasma TV. I have been very happy with the picture till now. However this week the picture appears a little dull. White color appear like off white. I...


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AKAI PROJECTION TV 54" - 6 YEARS OLD, DULL PICTURE


PLEASE BE CAREFUL WHEN DOING THIS PROCESS!!! YOU WILL DESTROY YOUR CIRCUIT BOARD LIKE I DID IF YOU DO NOT TAKE YOUR TIME OR ARE CAREFUL!!
What you need to do is clean the CRT coolant inside the TV. Here is a forum that I SHOULD have read before doing mine:

CRT COOLANT REPLACEMENT AND CLEANING

I was lazy and not taking my time to take care in not dripping any CRT coolant and some got on my circuit board, ( I felt confident since I had changed the Blue CRT 2 years prior) and I was only able to see about 1 hour of the best viewing my TV has ever given me since it was new, it looked like a miracle had happened. My TV was "dull" as the best way to describe it, colors faded, kinda fuzzy. I briefly researched into it again to refresh my memory then jumpted right into not really taking any precautions. I got lazy and didn't take out the CRT's like I did the first time with the Blue CRT and paid the price for it. Let me tell you, theirs nothing worse than getting a perfect brand new like picture only to loose it and hour later because of carelessness. Take out the CRT's, take your time, label everything and take pics, the reward is WELL worth it. Oh ya, you can use Mineral oil instead of the coolant that they sell at stores. Its not conductive, and dose'nt damage the circuit board if u spill a little. I used Baby Oil the first time I did it and when I went back to change the green CRT this time around it was still crystal clear, no discoloration in the Blue CRT I had done 2 years prior. I hope your results come out better than mine did!!

Dec 29, 2010 | Akai PT5492S 54" Rear Projection...

1 Answer

Lost entire picture, sound and everything else OK


check the invertor boards resistors they power the back lights
also check for any capactors that have blown (raised tops) they look little bateries

Dec 12, 2009 | Element Electronics FLX3220F 32 in. LCD TV

1 Answer

P42HDTV Visio Plasma TV. The picture is bad grainy/snowy.


Doing some warranty work for Visio, I ran into this same problem. I replaced the video and power boards, among other things. Turned out to be a bad panel, which isnt viable to replace. Best to get Visio to agree they made a lemon (as all their products are in my humble opinion) and have them send you a new tv, or even better, buy a tv that is NOT a visio. You can get great deals on LG and Samsung these days, both decent quality tvs.

Sep 02, 2009 | Televison & Video

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Need to fix the color and screen


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Nov 11, 2008 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

JVC i art 32" flat screen


Does anyone know where can I buy a screen for a 27" LCD Insignia TV. Model is NS-27LCD? My screen creaked. I checked out e-bay and have not found a broken TV with a good screen. Does anyone know where I can buy a screen at. 
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3 Answers

Pictures taken at night yellowihs an dreddish


In photo editing programs there are Hue settings where you can easily fix that problem. There are off course night lens filters but not for amateur cameras.

Apr 10, 2008 | Polaroid A500 Digital Camera

1 Answer

Brightness


as you said your tv is about 3 years old. we cant tell that the picture tube is defective and im sure your CRT socket is in solid contact at that 3 years old tv. for me it could be a path ways to the CRT wirings. a blurry picture may cause a insufficient voltage or a lost of voltage ratings. try to check if you can see and test a leaky capacitor 16V 1000mf near from the CRT wirings ending in contact to the main board. if you cant fix this problem contact a pro to solve your problem. good luck

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