Question about Technics SA-DA10 Receiver

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No, its my Technics SA-GX550 amplifier - have a problem - HELP!!

The overload light comes on so nothing works. This is with nothing hooked up to the thing. My email is rogervice1@sbcglobal.net i have the same problem whit SA-DA10 ( overload ) also if i turn up the volume or bass .If it works it works good. i bought it in this state . what about the light in the volume button and input selector ? mine doesn't work . i allready checked the connections some have already been repaired the rest looks good can't see anything bad . WHO CAN HELP ME this thing must show it's beautifull sound . Could it be a slightly defected condensator ? or defect in the Fan ? Greetings Jan Henk from Delfzijl Holland

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  • hennep Mar 13, 2009

    Ok then i have to take a look at it again . my fan doesn't work either who knows where the sensor of the fan is located ? the E Mail adress in my message isn't mine it came from someone whit the same problem.

  • hennep Mar 14, 2009

    yes that's the best i can do but i allready did that and he said its 1 faulty pre out channel but i think its the fan that doesn't work because it shut's down when it is getting hot . I have tested the fan it works good so it has to be the sensor of it because it doesn't get power .

  • hennep Mar 14, 2009

    Ok i checked it again and find something. Next to the cooling ribs on the lower ( biggest ) print plate near the 2 black transistors ( there's a little plate over them whit one screw ) on the cooling ribs there's a Diode missing . Its number D 708 . Can someone tell me what cind of diode it needs to be ? Someone whit the same reciever maybe ?

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  • Master
  • 583 Answers

You probably need to check the whole board with multimeter as it looks that multiple parts having problem on it.check all the components on the main board and replace the faulty parts.or taking it to a technician is also very much adviseable

Posted on Mar 13, 2009

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  • Master
  • 1,268 Answers

The relay circuit might be grounded. You need to check potential burned components on the circuit board.

Posted on Mar 12, 2009

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  • Technics Master
  • 19,396 Answers

You need to take apart the unit to test it , startig from the volume controls.

Posted on Mar 12, 2009

  • Ginko
    Ginko Mar 12, 2009

    Hi,

    You need to disassemble the unit and test the internal component to fix the problem.

    If the unit goes in overload only on low colume, then the problem can be a faulty volume control, replace it.

    To test the rest of the unit , grab a service manual and test components following the troubleshooting diagrams in service manual.

    You can get service manual from websites below:






    Technics SA-DA10 Service Manual




    Technics Service Manuals


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petertaussig33@hotmail.com

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