Question about JVC AV-56WP74 56" Rear Projection HDTV-Ready Television

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After a power surge My Jvc Av-56wp74 big screen Tv won't come on.

The power button blinks and a clicking sound from possibly a relay is all I get. Is there anything I can do myself to fix the probem?

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  • youngblood12 Apr 02, 2009

    i have the same problem theres also a clocking noise that matches the beat i think its either a bad relay not for sure though im gonna troubleshoot it let me know if anyone can help out with this problem

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 Try this: Works with most crazed computer based devices.Remove power (unplug) unit for 1 minute then plug in

Posted on Dec 14, 2008

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JVC AV-56WP74 56 in. Rear Projection red projector is not showing images and big red line in tv


If the red line looks like a swoosh of red across the screen it may be the convergence Ic having an issue.

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Possible power surge earlier today. TV will not


If your TV was plugged into a power strip with a surge arrestor, the power strip may need a reset (if there is a reset button) or replacement (those surge arrestors are only good for so many "hits". Try plugging the TV in elsewhere.
If it was not plugged into a surge suppressor, it is time to call a repairman.

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JVC AV-56WP74 Please help wavy 3d


If you do not have hand soldering skills or know how to use a multimeter, I would suggest to replace the whole assembly.
If you know how to solder you can just replace 2 ICs that are mounted on the big black heatsinks and possibly 1 or more resistors.
Click here to find the entire assembly for your TV.
Good Luck.

May 02, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

JVC TV TROUBLE


If you guys do not have hand soldering skills or know how to use a multimeter, I would suggest to replace the whole assembly.
If you know how to solder you can just replace 2 ICs that are mounted on the big black heatsinks and possibly 1 or more resistors.
Click here to find the entire assembly for your TV.
The link provided is for parts for the AV-56WP74 model ONLY. For the 65 inches; you should contact the vendor and provide the correct model number.
Good Luck.

Apr 22, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Jvc av-56wp74 power up failure


Hello hwkdoc,

 

What has happened is that your shutdown circuit relay has tripped and it looks like it also may have malfunctioned. This however is not the cause of your problem but a symptom. The cause of your problem is an over-current condition caused by one of the systems in your TV, I would suspect the high voltage power supply or the switching low voltage power supply. These are the first places to look, if they are not the problem then check the convergence correction amplifiers. Right now the shutdown circuit is keeping the TV from coming on. If you do not have a background in electronics I would advise you to have a qualified TV technician analyze and repair your TV.

 

Thank you,

 

Shuttle83 

Oct 15, 2007 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Big screen tv repair


There is a short in this TV set somewhere. The TV set is trying to come on but because of the short, the power supply shuts down. No if it is not the over current shutdown, it could also be the main power supply with an over voltage shutdown protection mode. These are solid state TV sets and should only be worked on by trained techs. Good Luck

Sep 28, 2007 | JVC AV-56WP74 56" Rear Projection...

3 Answers

JVC AV-56WP74


sounds like a power supply7 problem such as a power regulator is bad or maybe the Horizonbtal deflection cu8rcuity is defective. sounds like something if you ask me? should be taken care of by the pros??? Im sorry not being able to assist you better but these sets have hundreds of volts nin them and shoulnt be played with by an unauthoized service company.. Good Luck

May 19, 2006 | JVC AV-56WP74 56" Rear Projection...

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