Question about Technics SA-EX700

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Receiver problems i just hooking up my receiver after moving and it continues to turn itself off after 2-3 seconds, what can i do to fix it???

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  • vickers0000 Mar 11, 2008

    KR-794 receiver. It shuts off after 3 seconds.

  • Colin L.Swan May 11, 2010

    What type of receiver please?

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I think that is the cooling fan...good luck

Posted on Aug 22, 2008

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Sorry can't really think what 's going on here!!!!
I can only suggest checking once again that everything is connected up correctly and there is no possible 'overload' function operating that you have not spotted.
Check in manual/handbook or e-mail the problem to the manufacturers customer services e-mail ( see their web-site ).
Good luck with your bold attempts to rectify this annoying problem!!!!!

Posted on Mar 11, 2008

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1 Answer

Where is pre out im having trouble hooking up amp and eq


You have to use the TAPE 2 (or monitor) on the receiver. It will take two sets of RCA cables. Both the receiver and the EQ will have an input and an output.

  • Run the output/REC (from TAPE 2) to the input on the EQ.
  • Then, run the input from the receiver (TAPE 2 again) to the output on the EQ.
The EQ will have another 2 sets of RCA jacks to hook up a second tape deck (because you used the jacks on the receiver for the EQ). You don't have to hook anything to these if you don't want to, or don't have a second tape deck.

The receiver will have a monitor button, which most of the time is labeled as TAPE 2/MONITOR. Select whatever input you want to use (CD, Tuner, Aux, etc.), then press the MONITOR/TAPE 2 button. When that is on, the EQ will be in the audio chain - you'll be able to use the EQ to adjust the sound. If you turn the MONITOR off it will take the EQ out of the audio chain - the EQ settings won't affect the sound.

Keep in mind, the EQ will also have a button to select the TAPE 2 input. If you have a second tape deck hooked up to the EQ, this is how to use it. Make sure that the tape input is off on the EQ, if you aren't listening to that second tape deck.

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1 Answer

Receiver turns on for 2 seconds and then turns off itself, tried on different power sources but problem persists.


Short circuited component/s at its audio output stage circuit. Contact any service technician to get it repaired. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

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Disconnect all speakers from Zone 1 and see if it stays on. If it does, you have a short on a speaker (probably cable). If not, you might have a blown output transistor on Zone 1. I have a DENON that I am fixing that does this, but only when I turn up volume. Creepy. Good luck !

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The 3 front speakers have started to buzz. When I unplug them in moves to the rear 2 speakers. I orginally thought it was the speakers so I got new ones, same problem. Not sure if it is my reciever getting...


This is a grounding issue either between pieces of equipment or inside the receiver itself.
There are other possible causes, but this will almost always be a grounding issue.
I recommend unplugging everything and hooking it up piece by piece till the buzz return to isolate the issue.
IE - start with nothing but the receiver and speakers hooked up. Turn on the radio. If the speakers buzz, the receiver has an issue and needs to be repaired or replaced.

If there's no buzz, hook up the DVD player. If the buzz returns, there's some issue between the DVD and the receiver....
If the buzz hasn't returned, hook up the.....<insert name of next piece of equipment here>
you get the idea.

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1 Answer

Keeps turning itself off


If Both speakers are working at a low volume and you turn it up and it clips and shuts off you have one of 3 problems. you have over driven your speakers and one has shorted the voice coil but still will work at low volume, its a overload protection for ohms short in receiver. unhook each speaker and turn balance to the one hooked up and turn up receiver if it shuts off do the same with other speaker to determine which side is bad. 2 speaker wires are touching at speaker or receiver. 3 a bad receiver output transister. Good luck.

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You've got a short in one of your speaker wires either at the receiver (most common) or at the speaker itself. you should only have a 1/2" of each side of the speaker wire stripped to put on each terminal, and when you strip them, twist them so there are no frays in the strands that will touch the other terminal. The receiver is protecting itself from harm. Turn it off then disconnect all speaker wires, examine each wire carefully before reinstalling, then turn the receiver back on. If it still says protection, look at each speaker and reconnect your wires the same way. If you still have a problem, disconnect the wires again at the receiver and turn on, at this point, if it say's protection, it needs to be serviced. Hope this helps

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Receiver cuts inself off about 15 seconds after you turn it on


you need to check your speakers connections to make sure nothing is touching and all is connected right and not to have to many spkrs on the channels, also only have the skrs on that you are using, make sure zone 2 / 3 are off and multi volm is turned down

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the clicking may have been coming from the relay itself, but it doesn't simply mean that the relay is faulty. clicking may also be caused by transformers, indicating that some electronic components have developed SHORT CIRCUIT. try measuring resistance of transistors and diodes near the power unit (unplug/turn the unit OFF of course) check also for the impedance of the output power transformers.
check the amplifier IC for short also.

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1 Answer

Receiver turning off by itself


I'm having the same problem with my AVR 435. Did anyone ever figure out how to fix this?

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2 Answers

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First thing to do is to take out the batteries out of the remote and see if it still turns on by itself. If it doesnt, go to http://www.remotes.com and get a new one. If it does still have a problem, Its most likly in the remote IR sensor or the microprocessor and this has or should be diagnoised by a trained tech as its all solid state and the way to do this would be to look at the waveforms in the remote,microprocessor,and power supply circuit. Good Luck

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