Marantz CD67 error correction digital output - Page 2 - diyAudio
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Old 3rd October 2013, 08:21 PM   #11
jpprins is offline jpprins  Netherlands
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I cleaned the lens meticulously (checked with 15x magnifier) There was some dirt on it, which is gone now. For a moment I thought that did it, the player sounded better than ever (if that is possible), but no, there was the spiky noise again.
I've ordered the pickup mechanism on ebay for approx. 20 euros.
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Old 4th October 2013, 06:51 AM   #12
Mooly is online now Mooly  United Kingdom
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A new pick up stands a good chance of fixing it, especially as you felt a thorough lens clean seemed to improve things slightly. It all sounds like a marginal signal.
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Old 14th October 2013, 06:40 PM   #13
jpprins is offline jpprins  Netherlands
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I got a new unit but it appeared to be defective (of course).
By bending the contacts I could achieve that the laser could get to the start of the cd, and by endless tweaking the trimmer I even got it to play, but never without a lot of noise.
A different kind than the noise of my old unit, and I couldn't damp it out with my finger. There were no vibrations in the unit anyhow, so that's it! I put the new disc motor in the old unit and it played ok! The motor was worn out just too much for the player to correct any longer the tiniest reading errors due to the wobbly behaviour of the spinning disk.
Alas. I cannot put the cd-bearing-platter back on the motor in a reliable way. If I put it on fully, there is friction, if I put it on less firm, the laser cant focus, or it will in time sink to its friction position I suppose.
Well, the seller is sending me a new unit. Hope that one will be sound...
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Old 14th October 2013, 06:44 PM   #14
Mooly is online now Mooly  United Kingdom
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Bad luck with the new pickup but swapping the motor has proved the rest of the player is OK from what you say. Platters are just a push fit and secured with epoxy but they must run true. And the height must be right. If you look at a CD edge on and gentle turn the disc there should be no detectable up/down motion at the disc edge. Sadly very few non original pickups achieve that.
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