Sony STR-DH100. Puffing smoke and flashing protected.

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  • tucocaps
    Badcaps Veteran
    • Apr 2013
    • 331
    • United Stated
    #1

    Sony STR-DH100. Puffing smoke and flashing protected.

    Picked up this broken unit a long time ago, and thought I would take a stab at fixing. When I got it, it was clicking on and then off with no display. The main power fuse was blown. 6.3A 125 V. I replaced with a 7 amp, 250V fuse, and plugged in. Shortly after I saw some smoke, and looked at the front panel, and it was flashing "protected" or something like that.

    Unplugged right away, and fuse didn't blow. After pulling out the main board, I notice there is a strange layer of residue under it. I thought it had come from the transformer, but it appeared clean. Don't see any other obvious damage on the main, but I think there may be some near the fuse area after seeing that smoke.

    Thanks for any ideas!
    Tags: None
    • tibimakai
      Badcaps Legend
      • Jan 2012
      • 3680
      • USA
      #2
      Re: Sony STR-DH100. Puffing smoke and flashing protected.

      Probably somebody spilled something on it.
      Clean the board very well first.

        Comment

        • fzabkar
          Badcaps Veteran
          • Mar 2009
          • 772
          • Australia
          #3
          Re: Sony STR-DH100. Puffing smoke and flashing protected.

          Service manual:

            Comment

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