Hi,


I am running in the same problem as Mark Kono did in June:
My MS-404 worked fine with MIDI; I used it as MIDI-Slave of a MIDI
keyboard or with an Alesis MMT-8 as Sequencer. Now I connected the
MS-404 to Logic Pro and it shows the same behaviour as Mark described:

MIDI-Note on produces a positive Gate and a Note CV of 0 Volt.
I can change the reference note in MIDI-Learn Mode, but the Learn Mode
appearently does not react on Program changes, because I cannot change
e.g. the trigger polarity (prgchng #7 or #8).

I usually have the EPROM with revision 1.05, but also tried Revision 1.03.

I tried the reset described in the Manual of the MCV4(as recommended
from Dieter): press and hold learn butt, switch on and hold until learn
LED starts blinking; after that switch off an on again. But it did not
work: after switching on with pressed Learn-button the Learn-LED never
started blinking.

So how can I make the MS-404 react on MIDI again

Florian

PS: The MS-404 works fine under control of an external CV in. There is
no voltage change happening already at the output of the D/A-converter.
Hardware defect in the D/A is possible, but I don't assume so, because
the Gate is working.