Question about JVC AV-48WP74 48" Rear Projection HDTV-Ready Television

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No picture my jvc powers on, but no picture, makes a noise

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  • Sandraj May 03, 2008

    solid blue light

  • Anonymous Feb 02, 2009

    tv comes on ,sound/black screen no picture?

  • paulpenajr13 Feb 02, 2009

    tv comes on ,have sound/black screen no picture

  • paulpenajr13 Feb 02, 2009

    tv,sound/no picture,black

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No picture /have sound tv comes on

Posted on Feb 02, 2009

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Alot of sets turn solid blue when the signal is lost . check your antenna or cable inputs might be chewed up by pets mostly.
try feeding in a dvd player, or VCR signal and see if that plays on channel 3 or 4 ... if not you might need a new tuner.

Posted on May 10, 2008

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1 Answer

I have a JVC AV-65WP74, I went to bed watching the TV then turned it off for the night but the next day when I turned it back on the blue light came on on the TV but no picture, the TV makes a fast...


The clicking you hear is probably caused by a relay that controls the incoming AC to the main power supply. This is a protective reaction to a problem in the power supply itself or an overload due to a failure downstream from the supply. This is not a likely DIY repair. You will probably need a technician to determine which of these two likely problems it is.

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1 Answer

The led light is blinking, no picture and a strange noise every so often. What could it be?


Transformer's it shorted,that where the noise is comming from.The power supply board is dead.That the board where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board fo the replacement.

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1 Answer

Clicking on the power supply board(no picture or sound)


If you hear a buzzing, humming or rapid clicking noises this could be a problem with your ballast.Might be a good idea though to pull out your lamp just ensure its not damaged.You can find these at discount-merchant.com

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1 Answer

Loud popping on jvc av56wp74


if the noise is from inside the tv in the back,the high voltage transformer that feeds the anode for the rgb tubes,28000volts probably is arcing.

May 23, 2009 | JVC AV-56WP74 56" Rear Projection...

1 Answer

I have JVC 56" rear projector tv model av-56wp30 that is not working all of a sudden. There is a quiet clicking noise in the back of the tv when i turn it on but the is no picture. Also the blue light...


Call for service; The problem is in one of the following areas; Power supply feed back loop, High voltage switcher, Flyback transformer, or Power on relay....accordianman

Jul 22, 2008 | JVC Projection Televisions

3 Answers

Tv wont power up makes a noise but no picture


Your power transformer is likely shot. It'll cost at least $200 to have it replaced. Someone can come to your house to diagnose it. Usually costs around $65.

Nov 03, 2007 | JVC AV-56WP74 56" Rear Projection...

1 Answer

JVC AV-65WP74 65 in. Rear Projection... Problem:


I'm having a problem with my JVC 65WP74 the screen shows double pictures at the top and in the middle.

Oct 10, 2007 | JVC AV-65WP55 65" Rear Projection...

1 Answer

No responce except thumping noise


PLEASE TRY TO CHANGE AGAIN THE CONVERGANCE IC'S

Oct 02, 2007 | JVC AV-48WP30 48" Rear Projection...

2 Answers

Jvc 48" tv model av-48wp34


Sounds like you lost the High Voltage. The beating sound is the power supply trying to start up. After a predetermined time it will quit to protect the set. This is a very common problem and typically not that much to repair. If you are not an electronics repair technician you should find a reputable repair shop and enlist their services. I would not think the cost should exceed $150.00 to repair. Good luck.

Jun 18, 2007 | JVC AV-48WP30 48" Rear Projection...

1 Answer

High pitched noise


There is a singing coil in the power supply. This set uses whats called a Switch Mode Power Supply(SMPS) and as the picture changes, so does the amount of current the TV draws. Thats why the sound changes with the picture. This could be an indication that a part is going to fail soon or it is just a loose coil winding or a transformer winding. You should have the set checked out by a pro to be sure. Good Luck

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