Are you using batteries or an external PSU? With hum problems it's always a
good idea to run the synth on batteries to check the power supply isn't at
fault.
HTH
Lucid.
----- Original Message -----
From: "David Chang" <
changmaster@...>
To: <
analogue@...>
Sent: Sunday, June 28, 2009 3:46 AM
Subject: [AH] MC-202 problems
> Hey AH,
> It seems that my MC-202 is experiencing problems. I fired up the unit
> this
> afternoon and after pressing the power button there is a hum that seems to
> appear (never did before). It seems to go away after I press several
> notes
> on the mini keyboard. The problem also seems to correct itself after I
> switch the ENV settings to GATE. Wondering if any of you have experienced
> any similar problems? I'm thinking the CEM3340 or Roland VCA chip may be
> faulty. Any ideas on how to determine the cause of the problem and how I
> can fix this?
>
> Thanks
> D
>
