Question about JVC HD-61Z575 61" Rear Projection HDTV-Ready Television

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Audio failure..... I turned on the TV and the sound came on for a split second and then spike off like a short. It never came back!

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Maybe your tv ecounter audio has short circuit, or maybe your speaker became busted. Need a repairman to fix it.

Posted on Apr 21, 2008

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Have a 55" pioneer rear projection tv, was working great, turned it off and when turning back on it comes on for a split second and it shuts off


Take the back of of your set. You should see if there are leds on the circuit boards that light up when you try to turn on set. Use these for reference.
If only D146 on the power supply lights up then the problem is the power boar.
If D1503 lights up then the problem is the audio circuit on the amp board.
If D2614 then the shut down is due to lack of vertical deflection. It could be caused by a defective amp assy or convergence control assy. Checj for convergence drive signal at CN2302 pin 1. If missing, IC2308 on convergence control assy is probably defective. You can confirm by checking blanking signal input on pin 1 of IC2308.
Good luck to you.

Mar 20, 2013 | Pioneer SD-P55A5K 55" Rear Projection...

1 Answer

My T.V. is making a weird clicking/popping/thumping sound and it sounds like it's coming from the speakers. It will do it for a few seconds stop and then do it again. It pauses the audio when it does...


Tries tv and cables or satalites services boxes unplug,replug it back like about an hour later for tv to do a whole tv set resetting itself back to factory setting and those services boxes rebooting and updating it software.Recheck all tv wires connections and sevices boxes for input cables wires for lose cables wire connections and damages connections cables wires.These steps should help,for stopping the volume just suddenly raise up and out of control for no apperance reasons.

May 28, 2011 | Mitsubishi WD-57732 Projection Television

1 Answer

I PLUG MY SPEAKER WIRES INTO THE BACK PART OF THE TV, BUT FORGOT TO UNPLUG MY WIRE FROM THE RADIO AN TURN THE RADIO UP AN THE TV WENT OUT. NOW THE TV HAS NO SOUND AND IT KICKS ON AND OFF. TV REPAIR MAN...


Very bad!! By connecting the radio and the TV to the same speakers at the same time, the TV lost and you have blown up the audio amplifiers in the TV. this type of failure can involve a short circuit in the amplifier which could cause the TV to turn itself off as a protection measure.
Didn't the repair person tell you all this?

Dec 27, 2009 | RCA D52W19 52" Rear Projection Television

1 Answer

Tv won't come on and you can hear an sizzling sound from the back of tv.


hello it sound like somethink shorting out could be a disk capacitor split open you'll need to take the back of to check it out all the best

shaun

Aug 04, 2009 | RCA Televison & Video

1 Answer

61 inch Ultravision Digital tv,no sound when I turn it on


check for defective IC401 audio amp
also check d409 d410 d414 d413 for short
and check electroletic caps in audio amp

Jan 14, 2009 | Hitachi UltraVision CineForm 55VG825 55"...

2 Answers

Tv comes on and shutts off immediately


he was checking to see if the set stayed on with the ICs out if it did the ICs are shorted. Its easier to unplug the convergence yokes and try it but some techs do it differently

Apr 29, 2008 | Philips 43PP9202 43" Rear Projection...

1 Answer

Power failure lost tv


The chirpping noise is significant, it means that the smps is loading down because of a direct short, possibly in the horz. output transistor. But that is most likely not all the problem or the damage. It wasn't losing the power that hurt it was getting it back and the power most likely spiked with enough of a surge to damage the LSB (Large Signal Board)... I've seen at least a half dozen of these in the last six months with the same scenerio and the only repair for this is to replace the LSB, unfortunately they are no longer available so the next best thing is to have it rebuilt.
The part number of the LSB is 313503712571 and at Vance Baldwin they're $353.00 with a $30.00 core plus shipping. You're better off having the shop tear it down and send the board directly into PTS Electronics. At least you've got a rough idea what you're facing..
Hope this helps!
Bill

Nov 26, 2007 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Power Surge?


Sound? audio from station.. or noise this set is going into shutdown. the processor is seeing a problem with its safety cuircits and shutdown the set it will try to restart the set 3 times and then lock it down. it can be many things. the processor has an error log.. technician can get in and read codes.

Nov 16, 2007 | RCA D52W19 52" Rear Projection Television

2 Answers

Will not Turn-on


the deflection/convergence board requires replacing.the set is checking itself and found a problem and went into shut down.

Sep 04, 2007 | Samsung HCL4715W 47" Rear Projection...

1 Answer

TV pops and shuts off


Its two maybe three issues that your having trouble with. First thing is the convergence. That problem could be a cold solder connection on the convergence IC's or the Ic's have a thermal problem, as after they heat up they go bad. The second is the popping. This could be an issue with the rear channel Audio output Ic intermittanly shorting and shutting down the set, or it could be a bad ground around the picture tubes, or a leaky hi voltage block, or a second anode lead going to the picture tubes could be split. The other common problem with this set is the STR#### regulator IC in the power supply. Now unless your a tech you shouldnt attempt any of these repairs as there is very high voltage in this set and could cause great harm to you. seek the help of an authorized repair shop for Toshiba. Try this # if you cant find one in your area 800-457-7777 Good Luck

Jun 09, 2006 | Toshiba 55H70 55" Rear Projection...

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