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

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JVC 56in. is broken

My rear projection tv isbroke it will turn on but thre is no picture and the only audio is a thump thump like a heartbeat any help would be appreciated. I really just want to know if it is worth fixing or should i just get a new model

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Id probably get a new model once they are past the 5 year mark its about time for a new one

Posted on Aug 26, 2008

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The tv turns on but there is no picture. just an audio thump thump. like a drum. any ideas


Look inside front panel. Look under right side picture tube for oil leakage on signal board. If you see a puddle and possibly corrosion, then the tv is toast.

Jan 17, 2011 | Mitsubishi VS-60601 60" Rear Projection...

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Power light blinks , no picture or sound , just the speakers pulsating.making a heartbeat sound.


Sounds like the TV needs some type of serivice. But just to cover your bases try unplunging it from the power from the wall and let it rest for about 5 minutes. Then plug it back in to the power and try to turn it on using the power button on TV rather then the remote. See if that works. If it doesnt call JVC.

Sep 13, 2010 | JVC AV-48WP74 48" Rear Projection...

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I have a AV-56WP74. Recently it stopped working. If the unit is powered on, the speakers just thumped like a heartbeat. Then the power light just blinked. I found some solutions on this site. I found a 2.2...


replace the ICs

here is a tutorial I made:
http://www.fixya.com/support/r5001731-convergence_diagnosing_convergence
Let me know if I can be of further assistance.

Sep 07, 2010 | JVC AV-56WP74 56" Rear Projection...

1 Answer

No picture when you plug tv in but the power comes on and then you hear a low thump thump thump


disconnect power to the convergence module if thump go away replace convergence ic's.

Nov 03, 2009 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Same problem. Heartbeat sound, no picture, no sound....


If you have no audio or video and the TV is making a chirping or clicking sound the most likely cause is the convergence chips have shorted. You can get the parts and instructions on how to do the repair from www.TvRepairKits.com

Jul 22, 2009 | JVC AV-56WP74 56" Rear Projection...

1 Answer

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I hate to tell you this but its a good chance its your light engine,if the dots begin to spread over the TV it is the Light engine.

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1 Answer

Jvc 56in. rear projection. wavy lines, double visioned


you need to change converance chips do both STK392-120 you can also use 150

Apr 25, 2009 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Our JVC 56in rear projection tv cut off and when we tried to turn it back on is makes a thumping sound and the blue light on the front blinks and the thumping sound gets louder... Help??


The problem is one of the video drive IC's on the crt boards is bad. These IC's are located behind the front speaker grille. The board connected to the bottom of the crt's will have these ic's on them. They will be screwed into a metal "heatsink" The part number is TDA6111Q

Nov 28, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Thumping


when I turn on my tv there is a black screen and a loud thumping noise.What do I do?

Jul 29, 2008 | JVC AV-48WP74 48" Rear Projection...

1 Answer

JVC AV-56WP30 Two Years Old. Up And Croaked


Hi What you are discribing is a condition call power supply overcurrent shutdown the TV is going into a protection mode to prevent further circuit damage you really to call in a tech with JVC projection TV repair skills to fix this problem for you good luck windman

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