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Technics av control amp su-g88 classh+ - Sohowing Overload as soon as it turns on

Someone gave me thies receive (technics av control amp su-g88 classh+), when i connected the receiver, it says overload, Power off and On. I do it and it still occurs. Before i connected anything, since it was a gift, i opened it n checked the small fuses it had, they were good. Then when i conncted it showed me that, what can I do in reference to that.

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  • Anonymous Oct 01, 2008

    it sais overload

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5 Suggested Answers

  • 93 Answers

SOURCE: Technics SU-G91 OVERLOAD PROBLEM

OVERLOAD means that input signal level is too high. Can you be more specific? From which source you play music when OVERLOAD icon appears?

Posted on Oct 11, 2007

maklean
  • 1665 Answers

SOURCE: OVERLOAD MESSAGE

get a manual for ex-140 here
http://ec1.images-amazon.com/media/i3d/01/A/man-migrate/MANUAL000031494.pdf
or try ( i didnt check it) for ex-400 "Unsorted Technics Service Manuals" at
http://www.user-service-manuals.com/technics-service-manuals.htm

Posted on Feb 28, 2008

freetek
  • 5568 Answers

SOURCE: Overload on Technics SA DA10

This is an old message so you may not be interested any more.
There are a couple of possibilities; the high power of this unit seems to fry speakers fairly often and although they mostly fail 'open,' they can overheat causing the voice coil to lose its insultation and cause a short instead.

This may also be caused by the failure of one or more output modules causing the power supply to limit and give you the overload indication.
If an output module has failed and the unit is not limiting current, it may destroy speakers too.

Some knowledge and a decent meter would reveal the nature of the failure pretty quickly but describing the steps necessary to troubleshoot this is a little beyond the scope of this forum.

Posted on Apr 23, 2008

Sparky2012
  • 102 Answers

SOURCE: My Technics AV Control Receiver SA AX530 is in overload

An amplifier should never be turn on without speakers, it will overload internally.
make sure speakers work and try again.

Posted on Dec 04, 2009

Grubhead
  • 4678 Answers

SOURCE: on switching my technics sa-dx750 it says switching off overload

The question is what is causing the overload? The power supply or the output devices on the heat sink?
If you have accidently shorted a speaker wire, then the answer will be output devices, otherwise it could be anything in the power section. You may find a burnt or damged device with either of the causes.

Posted on Mar 09, 2010

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make sure speakers work and try again.

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I have a technics amplifier SU G75


I have a technics too, and faced the same problem. The solution is very simple just ensure the +ve and -ve wires are connected correctly for each speaker to the amp. Eg. red wire to the red knob and black wire to the black on both ends. sometimes this arises because the wires are of just one color however there will be some marking on the wire to indicate which is +ve and -ve. This took care of the overload problem.

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Have you checked the fuse in the unit?

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I had the same problem. As soon as the volume reached about 24db it would go into overload. I was able to fix it by soldering all the connections on the larger power module. The one connected the the heat sink. When I took it apart there where several solder points that had come loose.

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