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I have a problem in power supply on a jvc wide screen projection tv. it is not the power supply board.

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What is the model number of your set? Need that info to even begin to help you.

Posted on Apr 03, 2008

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Green and Red (thin lines) across entire screen [JVC 70 G886 HD TV]. Screen went to all green (wide and thin) within 1/2 hour and picture hasn't come back. "Input selection" box is visible and clear...


Try a "hard reset" first by unplugging the set for 30 seconds. and if no help, you may have a problem with the SMPS power supply, it might have a bad capacitor or two by now. Worth repair if engine is good compared to a flat panel.

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First check the power supply of your TV,multimeter the export voltage of power supply.if it is defective you can replace it.
if not you need check main boards,and inverter boards
From Wisiny.com can find those parts,power supply,inverter boards and t-con

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My jvc hd56g787 went off and now will not come back on, the blue and red light just keep flashing. We had a warning that the tube needed to be replaced for about a week before this. How do I know if it is...


Tv have none of any kind of forces to causes like an objects or person hitting it to the tv LCD screen panel wright?Yes,than tv is good no problems there as tube wise.The tv power supply board it is the causes and the problems.That the board where the tv power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish tv power supply board for the replacement.

Aug 31, 2011 | JVC HD-56G787 Television

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I have a JVC-HD projection TV model 56G786 and all of a sudden it will not power on. When you try to turn it on the blue light on the power button goes on but after a few seconds it starts flashing and...


Hi,

The JVC 56G786 users manual will not give you a clear or specific answer about confirming bulb failure with the LED lamp or power indicators located on the front of the TV.

If the TV was operating normally for an extended period of time (months or years) and will not start, the problem is almost always bulb failure. If the "Lamp Replacement" warning previously appeared "On-Screen" and the TV will not start, bulb has failed.

The first step in a "no picture" situation with a JVC LCD Rear Projection TV is bulb replacement. There is no way to measure the bulb. Sometimes the bulb is visibly broken or damaged when it fails. Remove the lamp cage and have a look.

The JVC Lamp Gallery has all the JVC models and lamp numbers listed. There is also a link to DIY JVC bulb and lamp installation.

If a good bulb is installed correctly and the TV still does not start, you need a technician. There are no user serviceable parts other than the bulb. Failure of ballasts, power supply boards or controller boards is rare in these TVs.

easyab

May 05, 2011 | JVC HD-56G786 56" Rear Projection HDTV

1 Answer

My jvc tv led light and power light blinking and no picture.


Power supply board have the problems and the causes.It failing and not giving the tv the wright voltages to the rest of the tv anymore.That the board,where the board the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Dec 06, 2010 | JVC HD-56G787 Television

1 Answer

I have JVC 52 inch HDTV and changed my light now after 4 years. It just blinks, does not turn on. what do I do


Tries tv unplug,replug it back like an hour later.The tv now it resetting itself back to the factory setting.The tv now,should work.Not,than the tv power supply board have problems and is the cause.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Nov 05, 2010 | JVC HD-52G787 52" Projection Television

1 Answer

My tv will not power on. It starts to power on, and then the power light starts to flash, and then it powers off and the lights flash really fast


Power supply board it dead.Replaced the power supply board will solved this problems.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

May 03, 2010 | JVC HD-52G787 52" Projection Television

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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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Jvc av-48wp74 48 in. just blanked out


check the power supply board remove the back cover just follow the power cable/plug in cord, remember unplug the tv set first you will see a fuse on the power supply board maybe is pop/open if no luck sell parts on ebay will get $$$....

Jan 17, 2009 | JVC AV-48WP74 48" Rear Projection...

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How do i reset my jvc tv


Either a bad lamp or bad reciver board.If audio amp ic on reciver board shorts ,it will kill part of supply and lamp ballast will not turn on and fire lamp.

Dec 28, 2008 | JVC HD-52G886 52" Rear Projection HDTV

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