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Technics stereo receiver model # SA-G78 overload

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  • Anonymous Mar 18, 2008

    Technics SA-EX700 goes in "overload" sound drops.. What now?

  • wwu65 Jan 05, 2009

    i have the overload problem, how to slove it. thanks.

    Wei Wu

  • Anonymous Mar 15, 2014

    I want to hook up my toshiba stereo receiver model no SA-3500 to my audiovision tv so I can listen to the radio

  • Anonymous Mar 15, 2014

    How can i listen to the radio through my audiovision tv using my toshiba stereo receiver model no SA-3500?



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Loose connection on "POWER-SUPPLY" and sometimes solder loose on "C I S BOARD" due to extreme - heat of amplifier. $137.51 repair done in 1HR as I waited at CENTURY SOUND ELECTRONICS.

Posted on Feb 01, 2010

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Power transformers done do u know how to get in ther to replace or not then buy new one alot work

Posted on Jan 19, 2008


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I have a Technics AV control stereo receiver sa-g78 Whenever I turn it up a little louder than says overload then it powers off...I need someone to tell me what I need to do...but dumb it down...

Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.

Jan 28, 2011 | Technics Audio Players & Recorders

1 Answer

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.

Mar 08, 2010 | Technics SA-DX750 Receiver

2 Answers

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.

Dec 04, 2009 | Technics SA-AX530 Receiver

3 Answers

Overload at medium (4-6) volumes. Can you adjust or disable the overload protection on these Technics amps??

try this mate:

May 23, 2009 | Technics SA-EX400 Receiver

1 Answer

Overload signal

The overload is the same as protect mode. Remove the speaker wires and turn the unit back on. If the message remains, there is a problem internal to the unit in the final stage of the amp.

Please let me know the results of the test above.


Mar 02, 2009 | Technics Audio Players & Recorders

3 Answers

Technics SA-G9057 overload

Check the fan connections at the back. The connections (just two flimsy metal prongs) came apart (I believe), so I have had to re-enforce them with electrical tape so the connections stay together until I investigate a further replacement fan. For now the connections are extremely sensitive to motion/viberation/impact/etc... but it does work now.

Sep 23, 2008 | Technics SA-EX300 Receiver

1 Answer

Probleme with my home theatre...technics..av control stereo receiver- model SA-G76

just an idea maybe check the position of speaker select switch some models have
a or b
or a+b

Apr 24, 2008 | Audio Players & Recorders

2 Answers

Technics sa-g78 no sound from front speakers

This happens on mine also. My theory is a relay. If you turn the volume up (Waaay up) momentarily, you "burn through" the oxidation on the relay and the sound comes back - for awhile. Some day, I'll get in there and replace it with something more robust.

Aug 06, 2007 | Technics SA-AX540 Receiver

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