Want to clean the front controlls on my AU-7900 amp.

Discussion in 'Exclusively Sansui' started by dpg3, Jun 16, 2017.

  1. dpg3

    dpg3 AK Subscriber Subscriber

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    I searched the Sansui forum here and Youtube for a detailed information on how to do this but didn't find any.
    I am a totally newbie to cleaning the amp, so I just need some detailed info how to clean the front controls of my AU 7900, so I don't damage anything.
    I have Deoxit and I know you spray it into the openings on the controls and turn them about a dozen times, once you take the top off the amp, just want to make sure I'm spraying it in the right places.
    I read that I might have to take the faceplate off to get at the various toggle switches is that true?
     
    Last edited: Jun 16, 2017
  2. dpg3

    dpg3 AK Subscriber Subscriber

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    Disconnected the amp and took the top off but not quite sure where to spray the Deoxit?
     
  3. Hyperion

    Hyperion Roobarb & Custard Subscriber

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    BLAH BLAH and dpg3 like this.
  4. dpg3

    dpg3 AK Subscriber Subscriber

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    I read the first thread and will checkout the second one. Just wish there was more info on the AU-7900 in particular.
     
  5. dpg3

    dpg3 AK Subscriber Subscriber

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    I've read both of these threads and the problem is even though the go into detail about cleaning an amp they don't specify how to clean on an AU-7900. I've taken the cover off the AU-7900 and I don't see any covers on the pots with access holes to spray the DeoxIT. I know I have to take the faceplate off to spray the switches can I access the other pots when I do that?
     
  6. petehall347

    petehall347 the brandy coffee man

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    could you post some pictures please ? it should maybe help .
     
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  7. bolero

    bolero Well-Known Member

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  8. petehall347

    petehall347 the brandy coffee man

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    if the bottom cover comes off go in that way .if not some taking apart is needed . front panel off . remove nuts from correct parts . pull out pcb with pots attached .
    sorry to be generalising here but never worked one .. most amps etc are pretty similar .
     
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  9. dpg3

    dpg3 AK Subscriber Subscriber

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    Yes I can, I'm going to work on it Tuesday when I have a day off. I'm also waiting for some DeoxIT to come in that I just ordered online.
     
  10. dpg3

    dpg3 AK Subscriber Subscriber

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  11. dpg3

    dpg3 AK Subscriber Subscriber

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    Yes I can do most of that just have to know where on the pots and switches do I spray the DeoxIT?
     
  12. Willy6

    Willy6 AK Subscriber Subscriber

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    In the hole..
     
  13. bolero

    bolero Well-Known Member

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  14. dpg3

    dpg3 AK Subscriber Subscriber

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    Yes, just need to know exactly where to spray.
     
  15. dpg3

    dpg3 AK Subscriber Subscriber

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    Here are some pictures not of my amp but they are exactly the same as my amp, I had the top and bottom off. Just need to know where to spray? I don't see the holes in the pots, that other people speak of, on amps where you spray into?
    DSC00776.JPG DSC00777.JPG IMG_4825.JPG
     
  16. petehall347

    petehall347 the brandy coffee man

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    i cant see the pots on those pictures .
     
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  17. dpg3

    dpg3 AK Subscriber Subscriber

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    OK thanks!!
     

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