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Sony A/V home receiver model:STR-AV1020

Discussion in 'Electronic Repair' started by [email protected], Mar 7, 2007.

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  1. Guest

    Sony A/V home receiver model:STR-AV1020,year: 1990 (guess),one of the
    back channels is not working and I found Q801=NTE382 & R802 to be
    defective,anyone have any common repair tips?.Thanks.

    Sidney
    E-mail:sidneybek(at)yahoo.com
    Dartmouth,Nova Scotia
    canada
     
  2. I would check the whole circuiut for cold solder/loose connections,
    check ESR of as many caps as possible, look for any more open resistors
    or bad semiconductors, be especially wary of any solder joint that
    appears to have overheated.
    Replace the defective components and best of luck.
    DO NOT connect your speakers until you are sure the unit is working
    properly with no DC on the speaker connectors or you could fry your
    speakers.
     
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