Question about JVC AV-27D305 27" TV

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Green Hue with Pulsating Picture

My tv started having a green hue that i cant make go away then the sides and bottom corner started pulsating, It is a JVC 27D305 how can i remedy this problem

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Replace C933 = 1000uf a 16v

Posted on Jan 09, 2009

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Problem with the Toshiba 50H13 50 in. Rear Projection Television. Green tint


The tubes have aged and the colour balance between the tubes has shifted. You will need to redo it using a black/white test image: first the black (the cutoff point), then the white (the gain) on each tube - always start with the green colour. This is done on the final video amplifier of each tube by adjusting the corresponding semiadjustable resistors.

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you can not solve this by your self you must have technication to open the set,,,thir must be some thing wrong,may be deg plug had moved from its place

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My tv has a green hue around the edge and a concave appearance on the edges


that's due to an electromagnetic field.remove all gadgets that have magnets in them probably surround speakers from the tv area.with time the hue disappers.you can remove the hue manually also by using a magnet in front of the tv and gradually moving it away from the tv in the direction of the hue.

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Tv repairman. the green picture tube has an intermittent short in it. This is an expensive fix.

Mar 30, 2009 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Sony, tv comes on color fine, then turns red


I had the same problem with my TV, but the hue was blue. I was told that not only did I have to replace the picture tube that wasn't staying on, but I would have to replace them all because they would not mix properly. After much investigation, I found that there is an adjustment for a variable power supply to each tube that can brighten and lighten each tube. I adjusted the RED pot and my picture color issue was resolved! To access this adjustment you must remove the front panel on the TV. At the bottom corners there are two small screw covers that you must remove. Then un-screw the screws under the covers. Then pull the front panel off of the TV, (it hooks under the top near the screen so it will swing out from the bottom). Now remove the wooden panel in the center, (four screws). The pot adjustments are at the bottom of the TV. They are marked for Red, Blue, and Green. They are extremely sensitive, don't turn them much! If you over adjust you will get red, green, or blue lines on your screen. Adjust back down to remove these, (this is also the remedy for removing these lines that can appear over time). Good Luck and God Bless!

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1 Answer

57" Sony Wide Screen Projection TV with a green hue


You were given some pretty good advice but what you need now is a BK467 crt tester and the pin-out connections. Each tube, especially the green, will need to be tested for high/low emmisions and shorts. Don't take it on faith that having it rejuvenated will work for anything other than temporary either. You're probably lloking at replacing at least the green crt and it ain't cheep..
PS, don't kill the messenger either - - I don't like giving bad news and any shop you take it too will not relish in telling you what I just did.. I have 20 years in the repair industry and it's never pleasant telling a customer it's time for considering an new TV...

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1 Answer

Green hue


GO to service mode ,On std by mode press diplay-5-volume plus-power button on remote con.
reduce green drive to balance .For good adjustment you need white picutre .Also reduce brightness to noticeble lavel.

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1 Answer

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Short on the crt board, look in the green area. Probably an small 3 leg transistor.

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1 Answer

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Problem 1. Color patches at lower corners. These are caused by magnetic sources close to the TV. Do you have any Speakers close to the sides of the TV? Are they Magnetically sheilded? No? Move them away from the TV. Problem should then resolve itself in a couple of days. Problem2. Screen Slumping. Most likely a problem with the Pin cushion correction ckts. Get a good technician to have look. cost should not be much. Under 100$ plus Technician fees.

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