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JVC tube tv modle # AV-27980 won't turn on at all.

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Check the low voltage regulators and the horizontal output transistor.

Posted on May 21, 2008

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JVC Modle HD-61FN97 2006 65 inch tv light went out replaced it now can not adj brightness


Aside from the customer controls you might be able to turn the screen controls up a bit to get more brightness, they are on a black block inside the set.

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I have a jvc av-56wp74 56 in rear projection tv it has a lil purplehalf moon on upper left corner about 1 ft wide and 2 inches down and the tpo lefthand corner is lil blurry the rest of tv is fine any help...


Well David, it sounds like you need to unplug and open back and try to stick your head up in set and look down into CRT's tubes, you may have phopser damage on one of the tubes, you will need to turn on to see it just be careful not to touch anything electrical

Feb 02, 2011 | JVC AV-56WP74 56" Rear Projection...

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JVC 65 inch AV-65WP55 tv, the color red is failing


The tube is old. You need to contact a service center. He may try to boost it from inside. If it doesn't work, then need a new tube.

Jan 09, 2010 | JVC AV-65WP55 65" Rear Projection...

1 Answer

TV Has no pitcher


you could have a shorted tube Green disconnect CRT board from green tube if set stays on tube is shorted also check video ic on crt board.

Dec 07, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

JVC AV-56WP74


You would need the service manual in order to change the picture tube properly as there are dangerous voltages stored inside the tube also the tube would have to be set up properly as well. You can get the service manual for your model at the following link. They will email it too you right after purchase. Heres the link.
http://servicemanuals.vstore.ca/

May 28, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Tv comes on then goes black power light blinks on and off modle # JVC AV-56WP74 56


Check the coils on the main board. Coils mean round ferrite donuts (1 inch or less) with copper wires on it. I have seen this come out.
if not check convergence amp ic's
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Dec 20, 2007 | JVC AV-56WP74 56" Rear Projection...

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Roger, if your contrast (sometimes called picture) and brightness controls are at max you can increase the tubes brightness by turning the "screen control" clockwise, be advised a little turn goes a long ways, don`t crank it too far or you will get retrace lines, you will have to remove the back from the set and follow the red wire down from the tube to the "flyback transformer" on the front of the flyback are 2 controls, focus and screen, do not move the focus control, this should fix your problem.

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1 Answer

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try unplugging for a few seconds the plug it back in

Jul 11, 2007 | JVC AV-48WP30 48" Rear Projection...

1 Answer

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sounds like your crt tubes...meaning Red, Green and Blue are out of alignment...or possibly 1 of the crt's is burned out.

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