Question about JVC AV-56P575 56" Rear Projection HDTV-Ready Television

1 Answer

Power issue, clicking noise, turns off

No other symptoms noticed. One day won't turn on. Plugged TV back into the outlet, Front power light (blue) comes on, then after about 3 seconds, there is a rapid "Clicking" noise near the power supply (where the cord enters the TV set in the rear bottom of unit), and then the set turns off. The screen is never engaged. I do have the unit plugged into a good APC power strip surge protector, which is operating normally. All other devices operating normally. Is this the power supply? Can I replace it?
Thanks a million. - Steve

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  • kstar724 Aug 28, 2008

    I am having the same problem. I had a repair man look at it. He told me that it was the red CRT. There was liquid coming out of it. Well he was supposed to order the part and come back to fix it. He never showed back up again. His number is no longer in service. Now I am having trouble finding someone to work on it, since it was taken apart. Would like to get an idea of what I need to do. Thank you

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1 Answer

The clicking is the power on relay closing and opening. This happens because the TV has several built in safety systems that will detect and over voltage and over current load situation.The power supply starts up for an instant, senses and overload of either or both kinds and then the safety switches trigger a cutoff. When this happens the power supply will not start up again because another circuit called a latch keeps it disabled. By unplugging the AC cord and trying to start it again releases the latch until the failure triggers it again.
On these TVs the power supply is rarely the cause of the shutdown. Something further down inside the TV has failed. Replacing just the power supply will not fix the problem. The most common reason there would be an overload would be in the high voltage circuit that lights up the 3 CRTs, next would be the coils around the CRTs that bend the beams to make the picture. This is normal circuit aging and wearing out. Unless you are very skilled with trouble shooting TVs I would recommend having a service center look at it. An authorized JVC shop would be your best choice because they will have access to the manuals and bulletins and have probably had other similar JVC units thru their shops.

Posted on May 17, 2008

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Tv will not power up



Press the TV button or ON/OFF button while remote is in TV mode and there's a source of power to the outlet or outlet strip.

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Check the wall receptacle (or extension cord) to make sure it is "live" by plugging in something else, such as a lamp.

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The self-diagnostic function of the projection TV will cause the STANDBY light to blink or flash when the television detects an issue.

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  2. Unplug the TV power cord from the electrical outlet.
  3. Let the TV remain without power for 60 seconds.
  4. Plug the power cord back into the electrical outlet. NOTE: If the TV is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the TV.
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If the issue is still unresolved after following all of the troubleshooting steps, service may be required . Please note the number of times the STANDBY light flashes and relay that information to the service center.

Source

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If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
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  2. Unplug the TV power cord from the electrical outlet.
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If the issue is still unresolved after following all of the troubleshooting steps, service may be required . Please note the number of times the STANDBY light flashes and relay that information to the service center.

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Good Day;
Try this:

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The power-cycling was a result of the damaged board.

The point of this story is that the broken part may be a symptom of the real problem.

I hope this helps someone!

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