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Subject: Re: [yamahacs80] IC m51623p ???

From: Fernando Zarone <fernandozarone@...>
Date: 2011-10-25

Yes, the M5162∗p ICs work as well as the corresponding IG∗∗∗∗.
I don't know whether this is a last rev of the machine, but it is from the factory for sure. No sign of any soldering...
Now, the CS 60 (great condition) only plays the voice n.1 and the voice n. 8. Fortunately, I do have the simple LED device for detecting the triggered voice (thank you, CSers!) . In the M boards the oscilloscope shows the presence of the right waveforms, but from the VCA IC 4 stage to the output O. I mean, it seems to be a common problem of those voices, not related to the individual boards!
Any suggestion from the CS gurus?

All the best
Fernando




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