Pioneer SX-737 protection circuit problems

Discussion in 'Pioneer Audio' started by M&M, Nov 3, 2015.

  1. rikardo

    rikardo New Member

    Messages:
    4
    dbt=dim bulb tester, easy to build
    as i mentionned earlier my 737 was clicking on and off repeatedly, so i changed few transistors on protection board and also all caps on that board, maybe some on the power supply one as well but i did not change anything on the AWH-033 one
     
  2. vinylisfinal

    vinylisfinal Super Member

    Messages:
    1,768
    Location:
    Bedford ohio
    what was the outcome?
     
  3. rikardo

    rikardo New Member

    Messages:
    4
    Hi, recaping and changig the transistors on protection board solved the problem. I have 2 sx-737 : silver face and black face, i have only recaped the silver one.
     
  4. vinylisfinal

    vinylisfinal Super Member

    Messages:
    1,768
    Location:
    Bedford ohio
    AF transistors on driver board solved this. intermittently noisy
     

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