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1152dc

  1. E

    Marantz 1152dc transistor replacement

    Hello AKers, I'm actually working on a friend's Marantz 1152dc which had a lot of corrosion caused 30 years ago by cat urine (just... imagine...) and then this amp stayed unused until now. I've made a lot of work on chassis, and fortunately inside the only board that had corrosion problems was...
  2. txc500

    Marantz 1152DC / 1180DC - How do you clean the rotary Tape Monitor Switch

    I have a recently acquired 1152DC Integrated amplifier. I'm cleaning the controls as they are very scratchy and touchy. The tape monitor switch is the most problematic. It looks to be enclosed with some openings and sits right next to a circuit board. Can someone shed light on how best to...
  3. Rubbertoe81

    Marantz 1152dc high dc offset

    My 1152dc is reading very high dc offset in the left channel from the speaker terminal. It climbs to almost 1vdc within a few minutes with the trimpot at minimum position, the right channel is ok. So far I have replaced all 2sa872 & 2sc1775 transistors on the main amp board with closely matched...
  4. goldswimmerb

    Marantz 1152DC Offset

    Hey all, looking for some assistance here, I have a Marantz 1152DC on the bench with a rather "drifty" DC offset, it tends to start around 200mv when the relay closes and as things warm-up drops down to where I have the adjustment point set, once there it seems to drift around slightly (eg I...
  5. Vintage Sampler

    Vintage Sampler

    Marantz 1152dc (3) Yamaha 2040 Wintec R1120
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