Roland MC4

[jupiter4]

Hi All,

I've just got hold of a Roland MC4B microcomposer. Much fun and frolics :)

Does anyone have any service/schem info for this? On the front is two holes
for pot trimmers, (which I am not going to touch!, unless I know what they
are). I would like to attenuate the system beep that it makes when it goes
through various modes, it gets a bit much after an hour or so. I am sure this
is just a simple circuit, and a hopefully a resistor pad might quieten it
down. It could also be a nightmare inside. I haven't opened it up yet. Anyone
have any info?

Cheers, Dave...