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ha1137w

  1. G

    Project/One Mark IVB - Deviton 4080 FM mute and stereo problem

    Hi guys, I've encountered an odd problem with this Deviton 4080 receiver I've pickup up. First of all, it's an obscure German rebranding of an already obscure Project/One mark IVB receiver. (It says Mark IVB on the transformer and meters.) So I haven't been able to find any schematics or...
    • Gertjan90
    • Thread
    • deviton fm muting fm stereo ha1137w mark ivb project/one
    • Replies: 0
    • Forum: Solid State
  2. P

    SX-737 tuner AWE-043

    Hi Pioneer Friends, I got a working SX-737 still with original parts. It’s still running with the old parts and I plan a major recap and transistor replacement on all boards, except the tuner board AWE-043. That board seems a bit tricky according to Larrys post here...
  3. JoseHH

    TU-717 crackling noises in audio output, cutting out the sound intermittently

    This tuner worked fine for several years since I bought it second hand. Two years ago I noticed it began producing a crackling noise in FM and I thought it was bad reception. This problem slowly became so severe that it started to cut the sound intermittently which became a very annoying...
    • JoseHH
    • Thread
    • crackling noise ha1137w intermitent sound muting circuit tu-717
    • Replies: 8
    • Forum: Exclusively Sansui
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