JVC AV-56WP74 56" Rear Projection HDTV-Ready Television Logo

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Posted on Apr 21, 2010

AV-56WP74 was watching and picture went out also making thumping noise - replaced convergence and now wont do anything

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  • Contributor 27 Answers
  • Posted on Apr 21, 2010
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Joined: Nov 20, 2009
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Check all of the large resistors on the convergence board. Usually at least one will be fried. Most likely, the 2.2 ohm if I remember correctly. Of course, make sure all the plugs are correct and plugged in.

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0helpful
1answer

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.
0helpful
1answer

I was watching Tv and my tv went out and start making a thumping nosie, what could it be?

Mine is doing the exact same thing. Was wondering if you had gotten any good advice yet.
1helpful
1answer

BOUGHT JVC AV-56WP74 IN JUNE 2004. 52

It is worth getting an estimate. From the symptom you explained, it looks like the horizontal output transistor became defective.
0helpful
1answer

Convergence IC + Resistor swap = Blue light clicking noise

Good Day,
It sounds like you may have slightly diconnected a cable. Look for the large RED cable/wire that goes to the Blue tube and make sure that they are very secure. When doing this make sure the TV is off.

Good Luck, BIG IRISH.
0helpful
2answers

Turns on has blue light thats it no sound or picture

convergance amps are failing and need to be replaced along with the 2 burnt resistors not a bad job they are locate on a smaal board in front behind the front panel on a large heat sink you can take the board out and work on it
0helpful
1answer

Convergence problem with my jvc tv

Its actually a easy repair but its recommended that the convergence resistors need replacement as well. You can get the parts at the following link and they provide free detailed instructions with pictures. You need two STK392-110 Convergence ICs and you would need the JVC convergence Resistor kit #1 also. Heres the link.
http://servicemanuals.vstore.ca/
0helpful
1answer

Green color convergence

make sure you hooked everything up properly and that all connections are tight
0helpful
1answer

JVC AV-56WP74 Red Convergence is Off

Sorry,I don't send E-mail instructions......see my powered
products for many convergence repair solutions........T.
0helpful
1answer

No responce except thumping noise

PLEASE TRY TO CHANGE AGAIN THE CONVERGANCE IC'S
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