Question about JVC AV-56P777 Television

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Won't power on

I push the power button, there is a clicking sound and the power remains off.

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The clicking sound is a protection switch that keeps turning off your TV because an internal error had been detected.

Try unplugging tv power cord for a couple of hours.

If this does not work , that means that there is a faulty component, in this case the TV should be inspected by a technician.

You can call support by using the phone number listed onthe TV user manual.

Posted on Nov 06, 2008

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Mitsubishi tv won't turn on


did you try new batteries in the remote? if the tv has buttons on the side and one of them being power di you try to push that? did you push tv power or cable power holding the buttons longer? those things might work.

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Projection screen HD tv wont turn on, when you push the power button the light turns on the tv clicks and then go right back off the picture never comes on. This all happens in a matter of seconds.


That sounds exactly like a burnt bulb issue to me which is easily replaceable. But without the exact model of your TV I won't be able to know for sure. If you could comment with the model of your TV I can do some more research for you.
If this helps please give a positive rating.

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I have a somsong hd tv and when i push the power button the tv want come on no picture. I hear a click sound every twenty seconds but no power seem to be getting to the picture tube tv mod# LNS4041DX


Based on your message, your TV has a bad high voltage section. Probably the HOT (Horizontal Output Transistor) failed or shorted and it either killed the high voltage or there's a current fluctuation; that is why the picture went, but there's a clicking sound. Then, when you turned it off or unplugged it the protection circuit remained active.

Once the high voltage fluctuates, that's the time the TV would create a clicking sound.

There's a 75% probability it will require a high voltage and horizontal deflection amplifier overhaul. The normal cost of that should be less than $200 if you take it in.

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The sound just goes all of the way up. on its own and the power button does not work


can you feel if you push the button if is clicking?
push the volumen up button and check if is making the clicking

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1 Answer

Philips60p8341


If you have any of the following problems you may want to check the site www.tvrepairkits.com for a repair kit. Most of the issue below are fairly common with the older Magnavox projection sets. 

Symptom: Screen shrinks and expands - may or may not correct itself after the TV warms up. After a few days, weeks, or months of having the shrinking/expanding problem you may loose all audio/video but the power light will remain lit!

(Note: The below symptoms typicaly occurs after having the expanding/shrinking screen problem above)

Symptom: No Audio or Video but power light is on

Symptom: Audio works but no Video. Power light still work

Symptom: No Video. Audio is intermittent. Power light still works

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have the power supply checked out sounds like it went out

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Damn TV....why doesn't it turn on when you push the power button??


Good Day, U-Fix- it;
Try this; CHECK FOR 10 VDC AT PIN 5 OF IC502 OF LOW, CHECK IC503 PART # 270P704010 ON THE MAIN PCB. 2. CHECK R529 .82 OHM 1/2 WATT OFF PIN 4 OF THE FLYBACK. IF OPEN CHECK C411 2200 UFD @ 35V AND IC 451 PART # 270P064020. ON THE MAIN PCB.

CHECK IC700 PIN 4 (AC-OFF) FOR 0 VOLTS DC, IF HIGH, CHECK FOR LEAKY D980 PART # 264P045040 ON THE MAIN PCB. 2. CHECK FOR 4.7 VOLTS DC AT CONNECTOR RF PIN 3 AND 4 ON THE SIGNAL PCB IF LOW SUSPECT PROBLEMS WITH THE SWITCHES/BUTTONS ON THE CONTROL PCB PART # 935D394001.
Good Luck, big IRISH.

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so the sound of mouse click is from the button being pushed.
is the light flashing codes at you in the form of flashing?
looks like you may have a short in the p/s.

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