FS8M External MIDI Interface 1.0 p 2
INTRODUCTION
The FS8M External MIDI interface replaces the FS8 footswitch and allows MIDI control
of the amplifier. You cannot use the footswitch and the interface at the same time.
CONNECTORS ON THE PANEL
8
7
6
5
4
3
2
1
0
15
14
13
12
11
10
9
TO
AMP
6-15
VDC
PIN
NEG.
MIDI
IN
MIDI
THRU
MIDI
CHANNEL
6-15 VDC PIN NEG.
The interface requires DC power to operate. This power can be obtained from a wall-
wart style power supply, or from the 12VDC POWER OUT connector on the Rivera
Head Master.
Depending on which model you ordered, you should have received a power supply or a
cable.
If it ever becomes necessary to replace the power supply, here are a few guidelines:
Because it is internally regulated and does not draw much current, the interface is very
tolerant of voltage. Any DC voltage from about 6 to 15V will work. The size and polarity
of the connector was deliberately chosen to be compatible with commonly available
stomp box power supplies of the wall-wart variety. Supplies made by Roland or Korg
should work fine.
WARNING!
There is no agreement among power supply manufacturers on the polarity of
connectors. You MUST select a power supply with the center contact NEGATIVE and
the outer barrel POSITIVE or the unit will not work! Also, you must use a DC supply. An
AC supply WILL NOT work! DO NOT assume that just because the connector fits, it will
work. Read the label on the power supply, and if it is not labeled, use a voltmeter.
TO AMP
Use a cable with 8 pin male DIN connectors on each end. You should have received a
cable with your unit. Be careful with this cable. It IS NOT commonly available in most
music or electronic stores.