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Posted on Oct 01, 2009
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Technics SA-AX7 OVERLOAD problem

If my SA-AX7 works on low volume it may work ok for big time, but if turn volume high aprox for 20 minutes, sound is off an message appear like OVERLOAD.

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  • Anonymous Mar 16, 2014

    whene I turn the volume up the fan wasent working I repaced it same probleme

  • James Jones
    James Jones Sep 14, 2014

    This sounds like the cooling fan has failed, that's what causes the amp to shut down, because if it didn't, it would over heat, that's why the amp shuts off for safety of fire, because the cooling fan only operates in high volumes only, so I recommend replacing the cooling fan, because that's what's the cause, make so sure you order the right correct fan.

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shaun taylor

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  • Master 1,527 Answers
  • Posted on Oct 01, 2009
shaun taylor
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Hello there are 2 big capacitor behind the metal heatsink see if one has swelled up if so change them both then check the output chip to see if there are any dry joints then when you've check all and still the same then you may have to change the output transistor g ood luck

shaun

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Related Questions:

0helpful
1answer

Hi I have SA-EH550 technics HI-fi music system. Start my system low volume no any problems but I adjust volume high after some time system go stop and show error code f61 Please give solutions. Thanks..
On some systems F61 is to do with the fan not working properly, sometimes blocked with dust. On others it's a power amplifier failure. Yours does sound like a power amp problem, but both should be checked.
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Sep 26, 2018 • Technics Audio Players & Recorders
0helpful
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Works fine at low volume, shuts off at maybe one third volume
This sounds like the cooling fan has failed, that's what causes the amp to shut down, because if it didn't, it would over heat, that's why the amp shuts off for safety of fire, because the cooling fan only operates in high volumes only, so I recommend replacing the cooling fan, because that's what's the cause, make so sure you order the right correct fan.
Read full answer
Jan 22, 2014 • Technics SA-AX7
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I have a Technics SA-gx550 receiver and it i turn up the volume it shuts off and the red overload light comes on.
wich is low imp in my technics sa-gx550 please tell me?
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Sep 06, 2010 • Technics Audio Players & Recorders
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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.
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Dec 04, 2009 • Technics SA-AX530 Receiver
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I have a technics sa-ax7 receiver and have sudenly lost sound on the right hand speakers.can they still be repaired. What could be the problem. Thanks
1). Look for a blown fuse on back - or inside. I had this similar problem with a Technics SA 5060 (vintage) receiver, and there were 2 separate fuses for left and right channels. One may be blown.
2). Try switching speakers (physically switch the left and right input plugs in their jacks - or wires if no jacks. If the left speaker doesn't work now, there is an issue with the speaker that has no sound. Run an ohm meter on these speakers as well to check them. There should be 8 ohms approximately. If no reading, then your apeaker is probably blown. If you can see a short on ohm meter 0 ohms) then you have a short circuit in your speaker.
Fred
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Sep 21, 2009 • Technics SA-AX7
2helpful
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Overload at medium (4-6) volumes. Can you adjust or disable the overload protection on these Technics amps??
try this mate:
http://www.electronicspoint.com/googlesearch.php?cx=002919058480771089906%3A03mranmmdze&cof=FORID%3A10&ie=UTF-8&q=Technics+SA-GX550&sa=Search#862
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May 23, 2009 • Technics SA-EX400 Receiver
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Technics sa-dx940 tv volume control
Check the sound setting on your TV, is it Fixed level out, if so you have to turn volume up on TV to go through the receiver.
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SAAX7 Technics stereo receiver stops broadcasting after 20-30 min
Ron- The fan does not turn on when the receiver is first powered on, it will run when the amplifiers begin to run HOT, they are kinda controlled by a thermo switch, if the fan does not turn on usually the receiver will shut down and display a OVERLOAD message in the display panel. My advise is to keep the unit well ventailated with plenty of breathing space around the top vent closure, this will allow air flow when loud volume output is used. Also use the rated ohm speakers with the SA-AX7,
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Jan 25, 2009 • Technics Audio Players & Recorders
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Have you tried connecting speakers? What was the result?

Yes, when you turn the volume up on these amps (or when the output gets past a certain level) the cooling fan should automatically come on.
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Oct 14, 2008 • Technics SA-DA10 Receiver
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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.

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Hi I have SA-EH550 technics HI-fi music system. Start my system low volume no any problems but I adjust volume high after some time system go stop and show error code f61 Please give solutions. Thanks..

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