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Pioneer pro-107 unit shuts down sometimes shortly after you first turn it on, and after it plays for a while. In order to cut unit on, it must be unplugged from the AC. Also, there is no indication of any problem in the picture, unit just shuts down.

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Please check if the sleep timer is activated on the unit ,please unplug the cable for 30 min and then replug it back and set back to factory settings if the problem exists please change different power out if the problem continues you may need it to get it checked by authorized service men to service the tv or if within warranty get it fixed by the company ..................................

Posted on Jun 12, 2008

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You could be having a failing power board, or faulty components on the board like capacitors/resistors.Easiest (but not necessarily cheapest) option would be to replace the entire power board at one go.

However, having said that, it is very difficult to diagnose the exact fault without doing spot testings on the unit. I would recommend getting a qualified repairman to take a look and diagnose the issue.

If you would like to attempt a DIY, you will need a service manual to guide you. You can find one here:
http://servicemanuals.vstore.ca/

However, be aware that there are voltages inside your TV set that can kill, even if unplugged.

If you found the solution useful, kindly take a moment to "Accept" my solution.

Posted on Jun 12, 2008

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1 Answer

Sanyo tv model dp50747 keeps shutting off automatically


Short circuited PCB inside it. Any one printed circuit board will have short circuited component/s; in turn draws tremendous current during switch-On, and the short circuit protection circuit inside the TV activates, and shuts it down, is happening now. Contact any service technician, or authorized service centre for Panasonic. This is not a user repairable fault.
If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

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Unit heats up and shuts off. Will not come back on for several minutes. Sometimes plays for awhile and then powers off again.


Unit most likely heats up if not ventalited or..amplifier is overloading due to speaker impedance issues. Start with only Front L and R speaker connected. see what happens. Most new amps however have short circuit protection and cuts out as a safety if speakers are not connected properly or if speakers are loading down the amplifier. the 6.1 is fairly new.. is it still under factory warranty?

May 06, 2010 | Yamaha RX-V2300 Receiver

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Elite pro 610-hd, shuts off after only about 10-15min of play, light snap and done.


sounds like you have in intermittent short at one of the picture tubes. Probably a small hole in the bell housing of one of the picture tubes that arcs to ground once the high voltage reaches a certain level, then arcs to ground & shuts the TV off. Not cheap to repair. Probably will cost about $500

Apr 04, 2010 | Pioneer PRO-610 58" Rear Projection...

2 Answers

Screen on pioneer DEH-P780MP not working


It could be an internal malfunction. It would be a power issue if there was no power going to anything. I would take it to an authorised pro in electronics. Even call him up and tell him whats wrong with it. He may be able to help you over the phone. This one is not a cut and dry DIY. Sorry.

Jun 14, 2008 | Pioneer DEH-P780MP CD Player

1 Answer

Power problem?


???

1. Is the head unit powering the speakers directly or through an amp?
2. What ohm load (4,8,) per channel and how many speakers?
3. Does it do it with the bass set all the way down?

If you have access to a voltmeter see what the voltage is on the yellow and black wires when it is diming. It should be stable ~ 13.5v with car on. if its < 10v when dimming either there is:

1. Shorted speaker lead.
2. Bad ground to radio.
3. loose power feed to radio.
4. Ohm load below 4 ohms, causing the eccess current draw.

May 15, 2008 | Pioneer DEH-P4500MP CD Player

1 Answer

Pioneer elite pro 100


My set is doing the same thing again. The last time I fixed this (4 years ago) it was a capacitor gone bad in the power supply for the 24v standby circuit. (C166)
The service manuals can be ordered directly from Pioneer Part Number ARP3014 for Pro-100 model.

Apr 10, 2008 | Pioneer PRO-100 TV

1 Answer

Sound problem


You have a shorted speaker or a speaker with a bad voice coil. This has been confirmed by the fact that the audio amplifier is shutting down (protection) but the unit stays powered on. The speakers will play for a few seconds or maybe even longer at lower volume, but any length or time or an increase in volume will immediateley shut off sound. This is due to the fact that a shorted speaker wire/connection will ground out or short to one another. If you have checked all connections behind the radio AND at the speakers and found no problems, then it is a voice coil on the speaker. A shorted voice coil will work until the speaker cone moves causing the short or until enough power passes through the voice coil's short to turn off the radio.
Solution:
1. You can use a voltmeter set to check continuity to test for a speaker short. Disconnect all speakers from the radio and connect one side of your meter to ground and the other to the speaker lead. An audible "beep" will confirm a short.
2. The other method would be to disconnect all speakers and re-connect them one by one until the radio's sound output shuts off again. This will be your shorted speaker.
I hope this information was helpful.

Apr 07, 2008 | Pioneer DEH-1800 CD Player

1 Answer

Cuts on & off


how are your speakers-if the speakers are not in good condition or they cannot handle the power that your head unit puts out the radio will shut down to protect itself- also check your ground line to the radio if the ground is not clean the unit can show the same symptom

Mar 08, 2008 | Pioneer DEH-P3500 CD Player

1 Answer

VSX-D704S


Have the speakers disconnected and turn on unit. If it still shuts down due to thermal protection the amplifier IC pack is damaged. Amplifier IC is tied to one side of the power supply by design. The left channel is probably shorted at the MOSFET on the pack. Nothing you can do but have it serviced. This is a common PIONEER failure.

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2 Answers

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I have been dealing with the same problem with the identical set. I'm pretty handy so rather than junk the set, I took off the rear panel and stuck a small fan in the back to cool down the inside of the cabinet. I love the picture on this TV so I'm doing all I can to save it. Sometimes it doesn't turn on so I have now taken off the front panel (speaker cover) and also the front access panel. I carefully reach inside and have to wrap on the part (with a long wooden spoon) that I hear clicking from when I hit the power button. I used to just give the cabinet a swift kick and it usually would turn on, sometimes after several kicks. Kick it, then hit the power button. So whatever the problem(s), it's not keeping me from watching a gerat picture. I have a feeling that if I took my air compressor and blew out all of the dust from all over the components, it'd probably solve the problem of it shutting itself off after an hour or so. Why it doesn't always turn on is anyone's guess, but a good tap or two with my wooden spoon here and there and it turns on eventually.

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