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tone board

  1. Birima

    Mixed up phono1 with aux1 after having disconnected everything

    Dear members, I have worked for days and nights to open my Marantz 2385, cleaning all pots, selectors, and push buttons, rewiring the tuner cord, and fixing some bulbs including the one from the dial pointer and stereo indicator. I am a total newbie so it has probably taken me longer than...
  2. ExcitableOne

    Concord MK10 tone control board not passing audio

    The tone control on the Concord MK10 I'm fixing for my friend seems to not be passing audio. Coming off the preamp, I get about 2v on a 60Hz (most dependable frequency for my DMM) and at the output of the tone control I get 0.005, the same voltage I get when doing a straight short. I replaced...
    • ExcitableOne
    • Thread
    • c458 concord ksc1815 sherwood sherwood s-7100 tone board
    • Replies: 85
    • Forum: Solid State
  3. Aaron99

    Marantz 2275 tone board pot broken (not shaft), recommendations?

    I am working on restoring a Marantz 2275. It has several issues that I am working through.... One of the issues was that the bass knob doesn't click between settings, it is continuously smooth. So I took out the tone board and see the back half of the pot sitting there. Luckily none of the...
    • Aaron99
    • Thread
    • broken marantz 2275 potentiometer tone board
    • Replies: 5
    • Forum: Marantz Audio
  4. Briant8

    Marantz 2250b noise with tone control selector switch

    Hello all of you wonderful Marantz gurus! I've got a frustrating little issue to ask about. Firstly, this was my first (mostly) complete recap adventure. I started with some swollen caps on the power supply board, then after more reading here went ahead and recapped the tone control board...
    • Briant8
    • Thread
    • marantz 2250b tone board tone selector
    • Replies: 8
    • Forum: Marantz Audio
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