Question about JVC HD-52G786 52" Rear Projection HDTV

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Tv problem jvc hd56g786

The tv was working fine, then the picture got darker and you could hardly see anything.  So I turned off the tv and now it won't come back on.  Also, the Power Led and Lamp/Program blink simultaneously.  What is wrong with the tv?

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Re: Tv problem jvc hd56g786

Your lamp bulb is probably finished so get a new lamp bulb they are easy to replace just look for a small panel on the side of you tv all you need is a flat head screw driver to open the panel and you should be able to pull out the lamp bulb

Posted on Nov 04, 2007

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JVC HD-52Z575 TV that has briteness an color purity problems.

From what little I have read about these TVs parts are High Call JVC 1-800-233-1060 Ask for TECH surrport them them what your problem is If it doe turn out to be Light engine Call UED for price of rebuilt one 1-800-648-6657 Also go to website ENCOMPASS look up your Model number they will have a listing of Parts 1-800-638-3328 You can try Downloading to USB stick in formation to it reprogram eeprom to TV sometime this will correct problem! GOOD LUCK with the repair.JVC downloads.

Oct 01, 2009 | JVC HD-52G886 52" Rear Projection HDTV

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My JVC 56G787 is dark and bright is turned all the way up

You need a professional.
Stop using the TV until it is repaired.
Continue to use it and your problems will multiply and grow more expensive.
Call the manufacturer to find you nearest authorized service center.

MR. TV Sales & Service Inc
Milwaukee Wisconsin 53405
(414) 762-8600
Established 1974

Mar 24, 2009 | JVC HD-56G787 Television

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Please help!!! Problem with JVC DLP TV

You need to replace the power supply board. The new ones have a bigger heat sink - obviously JVC knows about the problem because they made the new ones bigger. It cost $250 from JVC and I installed it myself - took about 3 hours to do. If you are not tech savvy call a repairman. Hope this helps.

Feb 03, 2009 | JVC HD-52G786 52" Rear Projection HDTV

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Picture gets darker

Apparently there is a loose connection somewhere. Please have unit checked out by a pro tech

Aug 01, 2008 | Sony KP-51HW40 51" Rear Projection...

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If the Mirror broke while the TV was sitting upright, the pieces of glass got down inside the light engine and the cooling fans. I don't think you took the light engine apart to clean out all of the glass so the main cooling fan is probably not running and causing the warning. There is no sensor for the mirror. Did you remove the chassis to clean the glass? You cna remove it again and try powering it up out of the cabinet. There are four fans that need to be running. If the light engine is filled with glass the fan at the bottom of the air exhaust will not turn.
I am fairly certain that since the TV was discarded there is more wrong with it than a broken mirror.

Jan 22, 2008 | JVC HD-52G786 52" Rear Projection HDTV

2 Answers

JVC convergencehas to be adjusted everytime the TV is turned on

You will need to enter servicer mode to do the alignment then
save is in service manual........
Does your set have an auto-focus selection ? Try that first...T.

Dec 26, 2007 | JVC AV-48WP30 48" Rear Projection...

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JVC tv model HD56G786

It's easy, you just have to go back into the menu setup for the auto channel/tuner setup and rescan for channels. I'd noticed this as well when playing around with the tv when I'd bought it and it had done the same to me.

Dec 10, 2007 | JVC HD-52G786 52" Rear Projection HDTV

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