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SANSUI AU-20000

Discussion in 'Exclusively Sansui' started by vic, Nov 9, 2018 at 5:57 PM.

  1. vic

    vic Active Member

    Messages:
    179
    SANSUI AU-20000 hello, can anyone help me change the voltage to 240v on this amp, picture attached
    thanks
     

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  2. vic

    vic Active Member

    Messages:
    179
    SANSUI AU-20000
    hello, can anyone help me change the voltage to 240v on this amp, picture attached
    thanks
     

    Attached Files:

  3. petehall347

    petehall347 the brandy coffee man Subscriber

    Messages:
    27,868
    Location:
    uk.. the middle bit
    manual is on hi-fi engine .
     
  4. petehall347

    petehall347 the brandy coffee man Subscriber

    Messages:
    27,868
    Location:
    uk.. the middle bit
  5. vic

    vic Active Member

    Messages:
    179
    hi thanks but I cant follow the diagram can you tell me which colour wire goes where? I think at the moment its set to 120v
     
  6. petehall347

    petehall347 the brandy coffee man Subscriber

    Messages:
    27,868
    Location:
    uk.. the middle bit
    first remove both short jumper wires leaving the other wires in place . then jumper 3 to 4 . tighten the screws and good to go .
    yes it is set to 120v in your pic .
     

     

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  7. vic

    vic Active Member

    Messages:
    179
    so remove the 2 white wires in the middle and place them where? see pic
     
  8. pete_mac

    pete_mac Super Member

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  9. petehall347

    petehall347 the brandy coffee man Subscriber

    Messages:
    27,868
    Location:
    uk.. the middle bit
    lose one jumper wire . connect other one to terminals 3 and 4 ..
     
  10. vic

    vic Active Member

    Messages:
    179
    thank you I have attached pic let me know if this is right also I noticed one of the plugs has come lose or is that meant to be unplugged,
    pic attached
     

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  11. vic

    vic Active Member

    Messages:
    179

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  12. pete_mac

    pete_mac Super Member

    Messages:
    2,832
    Location:
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    Sure is!

    Let's compare your pic to the service manual (click pic to enlarge):


    vic au20000.jpg
     
  13. OnTheBlitz

    OnTheBlitz ->"There's nothing I won't eat, including YOU!" Subscriber

    Messages:
    19,399
    Location:
    -27.125817, -109.276726
    Looks correct to me as well.

    That 20000 looks incredible! Please post your thoughts once you start it up.
     
    SansuiJavier likes this.
  14. vic

    vic Active Member

    Messages:
    179
    thank you
     
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  15. petehall347

    petehall347 the brandy coffee man Subscriber

    Messages:
    27,868
    Location:
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    looks wired correctly according to the manual .
    what is that plug for ?
     
  16. vic

    vic Active Member

    Messages:
    179
    Not sure I plugged it back in must have come lose. I noticed when u turn that switch that has left right l and r and normal position. When I turn it to normal position the right channel not working but when it’s in the left right position it works on both channels? Should I be concerned? Thanks
     

     

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  17. petehall347

    petehall347 the brandy coffee man Subscriber

    Messages:
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    Location:
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    looks like there is a problem with the pre amp stage right channel
     
  18. vic

    vic Active Member

    Messages:
    179
    I cant get the tone control to work only works on tone defeat, also I noticed there are 2 wires that are not plugged on the power board and the plugs have some sort of a stop to them, do I need to plug those 2 grey wires, picture attached
     

    Attached Files:

  19. petehall347

    petehall347 the brandy coffee man Subscriber

    Messages:
    27,868
    Location:
    uk.. the middle bit
    looks like someone beat you to it and was diagnosing a fault .
    do you have the history of it ?
     
  20. vic

    vic Active Member

    Messages:
    179
    Sorry started another because the first one was about power voltage, So I thought not many will reply for the current problem
    thanks
     

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