Question about Technics SA-EX320 Receiver

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We have had a Technics stereo for 16 years and have had NO problems until the last couple weeks. If the volume gets turned up, the signal will come on that tells us that there is an OVERLOAD. We have tried new speaker wires but that did not resolve the problem. Is the anything else we can check or try..summer is here and we look forward to a couple BBQ's, and because we are always about 50 feet from the patio and DOWN on the grass, it would much more pleasant to actually be able to hear the music. (It cuts-out around 4-6 -out of 20) We look forward to your reply as soon as possible! Thanks! Andrea :) ****P.S. In order to be able to send this...I had to choose a product option from the site list....Our receiver is a SA GX350!

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Disconnect the speaker wires at the receiver, turn up the volume, if it goes into protection, it's an internal problem and needs service. If it does not go into protection, re connect one speaker at a time and test. If it shuts down check the speaker itself, if they are as old as the receiver, chances are good that the surrounds on the speakers themselves have disintegrated. Older speakers used foam surrounds, newer ones use rubber or plastic composite material that will not disintegrate. What will happen is dust and moisture will get into the voice coil and cause a short, even though the speaker still plays. Hope this helps. If you need more help or just advice, post a comment, and I'll help if I can

Posted on Jul 01, 2009

  • abelrojo Jun 10, 2011

    i have a reciver SA-GX670 should i do the same thing for mine thats the same thing i turned up to 7 or 8 and say power off overload please let me know i ready change the speakers wire.

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If the amp shows overload...that means there is a short circuit in the out put . check the below .
1. Change the speaker wire(short circuit).
2. Change speaker .
3. internal short ckt ( IC ) take to a service center.

Posted on Apr 21, 2016

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Posted on Jan 02, 2017

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SOURCE: My Technics sa GX350 tuner

Hi mate, had the same problem with my amp.. Take the top off and there is a fan at the back, there are 2 piece's of copper flat wire that touch together and these do not touch anymore so when its turned up or the bass gets stronger it cuts off as the fan should kick in at this point. If you can get these to touch again (bend them) then the problem will be gone!! I have had to do this a few times now though so this is not a long term fix.. I may try soldering!

Posted on Jan 10, 2011

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Your connections seem to be right.

Let's distill this down to its simplest configuration... does the onboard FM produce sound? If not, nothing will.

NEVER USE MAXIMUM VOLUME FOR TROUBLESHOOTING.

Turn the volume control to something medium.

The errant switch, control or condition may change and you will suddenly release the amp's full power and possibly destroying your speakers. If a signal isn't audible at 1/2 volume it's probably not there.

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regards
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I would maybe get a computer fan, and just put it on top of the receiver and turn it on, or send it in for fixing. Also, do you have to crank the volume to get the speakers to play at your volume, and does the impeadence match the receiver. Because you may be pushing the receiver too hard.

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If this helps, please rate my response.

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