Question about JVC AV-48WP30 48" Rear Projection Television

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Jvc 52z575 dark TV

My JVC 52" projection lcos TV has went through 6 bulbs in 5 years. I am used to changing them. The picture started progressively getting dark over the last month or two. It's darkest in the middle about 2/3 from the top and gradually changes.

Changed the bulb twice and it didn't improve. Any ideas what the problem could be?

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  • Anonymous Apr 23, 2009

    The back is totally open. Using a vacuum cleaner I sucked the dust out of all the the vents and inlets. I did the same to the fan when I changed the light bulb last. Could there be dust on something inside that would be blocking the light. I had a 4 year service plan, they changed several boards including a recall.

    Thanks for you input.

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The life estimate for a bulb is about 5000 hours, and if the bulb is dieing before that is very obvious you have another issue on the TV

That Could be a temperature problem, like a cooling system is failing (usually the is two fan around that) or a lot of dust in the cooling system. another one could be temp sensor also maybe failing and is not sensing high temperatures and is no turning off the TV

Also make sure you have enough ventilation in the back of the TV


Hope this give you a better idea of the problem
thanks

Posted on Apr 23, 2009

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JVC HD-52Z575 tv shows only a grey picture screen. I was watching a channel and tried to change channels and new channel won't come up, only grey screen.


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1 Answer

How do you reset the the lamp use time, after bulb replacement, on a JVC HD-52Z575 52inch Rear Projection HDTV


andycjavier,

See my tip at

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Mar 07, 2011 | JVC HD-52Z575 52" Rear Projection...

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The sound suddenly went out on our JVC HD52Z575, that is about seven years old and otherwise works well.


The sound board is gone.... it's not worth it to repair. Just use the analog audio out from the TV to the external audio system. that's what I do on mine.

Dec 27, 2010 | JVC HD-52Z575 52" Rear Projection...

1 Answer

Lost


You will need to have a service center come out to try to reset the TV using the reset jig. A JVC authorized service center will be the only ones that will have access to and training to use this jig. It is a good chance reseting it fix the color problem but it could also be something more serious.

Apr 22, 2008 | JVC HD-52Z575 52" Rear Projection...

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Blue light and lamp light flashing, no picture.


Look in the owners manual for the directions on how to remove the lamp. Your model the lamp goes in from the front on the left looking at the TV. There is a thumb screw in the back on the corner holding the left front speaker on. Under the panel there is another thumb screw holding the lamp door on. You will need a Phillips screw driver to remove the lamp. You will most likely find that the lamp is bad. You will either have to order a lamp directly from JVC, a service center or a parts distributor.

Apr 21, 2008 | JVC HD-52Z575 52" Rear Projection...

1 Answer

No picture.


The lamp is turned on by a high voltage ballast, very similar to the ones in your fluorsecent light fixtures. Your ballast is starting to fail. You should have your TV serviced by a JVC authorized service center because they have the training to deal with this issue. Waiting until it fails could very likely cause more servere damage especially if it fails shorted then the power supply will need to be replaced as well.

Mar 23, 2008 | JVC HD-52Z575 52" Rear Projection...

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