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Sansui 771

Discussion in 'Beginner Electronics' started by Ev, Sep 13, 2004.

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  1. Ev

    Ev Guest

    A whisp of smoke came from this receiver on the weekend and I am nervous to
    use it now. It used to take a second and there would be a click, then it
    would power up. Now the click is not there, but it still seems to work fine,
    but static comes over the speakers on power up. The resistor that smoked is
    next to the little plastic switch looking thing on the right side of the
    board. Ya think it can be repaired or is it toast-tea-toes...Thanks. I don't
    know my way around this stuff at all.

    Ev
     
  2. Dana Raymond

    Dana Raymond Guest

    My guess is that the speaker cutout relay circuit died. I believe its
    supposed to disable the speakers until the set is ready. Hence, no click and
    you get static at startup.

    Just my 2 cents as I don't work with audio electronics
     
  3. loedown

    loedown Guest

    I agree,
    Audio output relay circuit, contacts either welded on, or
    timing circuit has bitten the dust

    Paul
     
  4. Ev

    Ev Guest

    Thank you to the gentlemen that replied, appreciate the input...

    Ev
     
  5. Ev

    Ev Guest

    Oh, btw, ya figure the old fossil can be repaired at a reasonable cost or is
    it ripe for target practice?

    Ev
     
  6. Dana Raymond

    Dana Raymond Guest

    I'm not sure how much it can be repaired. If you want to talk to repair
    experts, try sci.electronics.repair. They may be able to give you a better
    informed opinion.

    Repair will depend on someone having the schematics or repair manual, the
    availability of parts, etc. However, the kind of problem your receiver has
    should be simple to isolate and repair from a technical point of view.

    Good luck.
     
  7. loedown

    loedown Guest

    Parts expense should be no more than $10 AUD, repair will be around $80 AUD

    Paul
     
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