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Re: Roland SC-88 Pro (hopefully) helpful hints

Thank you so much for that! Mine operates the same, but I hadn't spent enough time with it to figure that out. The manual doesn't seem too useful in the pertinent pages, because I tried to follow them when it wasn't working as well as the SC-8850 using its remapping all method. The second press of …

Re: Roland SC-88 Pro (hopefully) helpful hints

Well, of course a MIDI file can do the same and change the mode, but that's not the point. Besides, you can also switch modes while playback is already running. Doing it during playback after program changes have already occurred, will set every channel to pianos, but that can be fun in its own way …

Re: Fixing the Roland CM-500 Vibrato Bug

It's just the opposite, rather. There's an occasional behavior that I'm experiencing in Mode A with my v1.00 units that is presumably resolved with ROM version 1.02 (based on some vague information I'd received from Roland Japan a couple of decades ago). When you receive your ZE80482 unit, can you …

Re: Fixing the Roland CM-500 Vibrato Bug

This is the best outcome. :) I agree! :) It's just the opposite, rather. There's an occasional behavior that I'm experiencing in Mode A with my v1.00 units that is presumably resolved with ROM version 1.02 (based on some vague information I'd received from Roland Japan a couple of decades ago). …

Re: Fixing the Roland CM-500 Vibrato Bug

The last four digits of the serial number seem to loop based on some predetermined counter, and are probably only meaningful concerning production comparisons within the same month or year. In other words: ZD83743 < ZE13000 < ZE80482 Unless it was swapped for reasons unknown, the ZE80482 model you …

Re: Fixing the Roland CM-500 Vibrato Bug

Separate from the LFO/vibrato issue, I am currently troubleshooting yet another errant CM-500 behavior, this time related to the MIDI switching/handling function of the Mitsubishi 7702 MCU. If anyone happens to have a CM-500 with a serial number greater than ZE13000 (with corresponding "CM-500 1.02 …

Re: Fixing the Roland CM-500 Vibrato Bug

holy _this will rattle out and short something_ batman I like to think that I took precautions for that, and so I highly doubt it. These are stiff wires and solid solder connections, but my modules mostly stay put and we don't get earthquakes in Wisconsin. A tornado could occur, but then my CM-500 …

Re: Fixing the Roland CM-500 Vibrato Bug

Here's my CM-500 modification, which should allow for easy reversion for posterity and the original vibrato bug. I put the oscillator crystals on a switch, although it's a tight spot, so I probably should have insulated the oscillators' exteriors with heat shrink tubing too. I used my Hakko FR-300 …

Re: Fixing the Roland CM-500 Vibrato Bug

For anyone interested in performing this modification, I am willing to send, at my expense, the requisite 8 MHz crystal, IC socket (where needed), and modified ROM IC; just provide me with a shipping address via PM. You are so generous! I've already been sourcing everything for the modification, …

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