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ARCHIVED FORUM -- April 2007 to March 2012 READ ONLY FORUM
This is the first Archived Forum which was active between 17th April 2007 and
1st March February 2012
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Hello, I've just got from an auction site a NOS MMC20EN with standard headshell adaptor and tools, all in original box for 60 €. Although the tip is new, how will it sound like? The guy also had a new MMC4000 which sold for 40 €!
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There's always the possibility of a main volume pot contact issue, mine suffered from that. I also had another strange "distortion" problem but it was a bad speaker connector! You never can tell!
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Hi everyone, I've now finished re-capping and testing the Beomaster 6000. I used Elna Silmic (genuines!) and Nichicon Muse throughout. The printed tracks are so fragile though! Everything works great, the sound is superb. The most significant gains were in the bass department in in treble clearness and information retrieval. It is now my main amp
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Thank you. I will look further into this and shall keep you informed of course. But I'm beginning to think this is a purely mechanical issue.
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Yes, it is an LM324N. And yes, the muting circuit depends entirely—and only—on the signal given by the lift/lowering circuit. So the delay circuit works fine for me. If the IC was defective, the muting relay would not work at all, or the delay would be wrong. Which then excludes the amp/delay circuit failure! Back to mechanics then? Well
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Thank you both. Okay then, but the same circuit triggers the muting relay too, doesn't it, and that works just fine. There's something I don't quite get here. I know I am being a pain, but I hate it when I can't figure things out... All solders triple-checked by the way! Also, do you think the dampening is purely electronic or not?
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So how do you analyze the role of C9 then?
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The screw doesn't stick, I've checked this. The relay always clicks after the stylus has reached the disc. When the deck is cold, it is normally dampened, no problem at all. But after a few minutes' use, it falls quickly, almost freely.
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Thanks Martin. The pointy rest? When I try lifting the arm while playing (with a Q-tip) it is very free, it doesn't stick at all in the upper position.
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Hello! So, has anybody got any ideas about the cueing problem on these decks? I tried changing the feedback/delaying cap (C9) with a new Wima 1 μF/63V but it then refuses to lower, or at times it does lower veeerrrry slowly and the muting relay never triggers! Re-fitting the original, possibly defective (?) cap returns operation. Lift signal comes
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