Service manual Technics SX-AX7 Keyboard

Discussion in 'General Electronics Chat' started by grauerWolf60, Feb 12, 2016.

  1. grauerWolf60

    Thread Starter New Member

    Feb 10, 2016
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    Hello,

    i am new one. I search the complete service manual for the technics sa-sx7 synthesizer. can you help.
    The keyboard has no function. Only LCD background is lightning. I believe the power supply are damaged.
    Wolfgang
     
  2. grauerWolf60

    Thread Starter New Member

    Feb 10, 2016
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    Sorry
    read correctly: SX-AX7 Synthesizer
     
  3. Dodgydave

    Distinguished Member

    Jun 22, 2012
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    You have to download it from Technics.com, create a login member.
     
  4. grauerWolf60

    Thread Starter New Member

    Feb 10, 2016
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    Sorry

    the sx-ax7 synthesizer is not found. I need the service manual not the user manual.
    it doesn´t matter whether registrated or not. Nothing with ax7 or SX-AX7 is found on this site.
     
  5. absf

    Senior Member

    Dec 29, 2010
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  6. grauerWolf60

    Thread Starter New Member

    Feb 10, 2016
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  7. grauerWolf60

    Thread Starter New Member

    Feb 10, 2016
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    Hi bertus,

    i have a mistake in the thread heading and I get wrong replys. I tried to open no 2. thread but no possibility to close the thread. The correct name of the synthesizer is technics SX-AX7 instead of SA-SX7
     
  8. bertus

    Administrator

    Apr 5, 2008
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  9. grauerWolf60

    Thread Starter New Member

    Feb 10, 2016
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    Thanks for changing.
    after measuring power supply the dc dc converter has a problem. The coil has 0,8uH and the 100Ohm resistor is very hot.At load the 5V falls to 2.4V.
    I guess not enough power is supplied. Perhaps anywhere had a wiring plan on power supply.
     
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