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This manual is valid for A-100MBP and version 2 of A-100MNT, as well as for the
miniature case A-100MC. Version 1 and 2 of A-100MNT differ in the specifications for the
required external AC/AC-Adapter. Version 2 of A-100MNT can be identified by a label 12-
15V AC / > 400mA. The label is located on the pc board of the A-100MNT. In case of an A-
100MC a second label is located near the connector for the AC/AC adapter.
If your A-100MNT is not equipped with this label you probably own version 1 of the A-
100MNT. For this version of the A-100MNT another user's manual is valid !
A-100MBP has no such label. The specification "12-15V AC / > 400mA" is printed directly
to the pc board.
For small set-ups with a few modules only we offer the A-100MC (miniature case) and A-
100MNT/A-100MBP (miniature bus and power supply).
The A-100 MNT/A-100MBP are composed of a miniature power supply and system bus,
with connectors for four modules. It' s designed to be used in your own custom-designed
case.
The A-100MC is a small case with 32 HP width and a built in A-100MNT or A-100MBP.
The idea for both units is that then you can use only a few special A-100 modules - for
instance a miniature synthesizer or some filters or effect modules only as free-standing
pieces of equipment, which can easily be integrated with your other instruments or
recording equipment.
The A-100MNT/A-100MBP provide the usual A-100 supply voltages +12 V and -12 V, and
an additional +5 V supply, required only for a few older modules (e.g. A-190-1). The
maximum current loading capacity is 200 mA for +12 V and –12V, and 50 mA for the +5
V supply.
The A100MNT/A-100MBP system bus provides connections for four System A-100
modules. As well as the ±12V power supplies, it also carries the internal signals CV and
GATE which may be used if required. This depends upon the installed modules and if they
use the interal CV and/or Gate lines (e.g. Midi/USB interfaces, VCOs, ADSR).
The A-100 MNT/A-100MBP requires an external AC power supply (AC/AC adapter),
which has to be connected to the socket on the pc board or to the hole at the right side of
the case if you received an A-100MC.
• The external power supply has to output 12-15V AC and a minimum of 400mA. More
mA is fine (e.g. 500mA or 800mA or 1000mA).
• If by mistake an external power supply is used which outputs DC, the A-100 MNT/
A-100MBP will not work (probably only one of the two control LEDs will light up)!
• If you have ordered the A-100MNT/MBP only both the A-100 MNT/MBP and any
connected modules must be firmly fixed into a proper casing. Any sort of "flying
construction" is absolutely discouraged, because if two conductors from separate
modules accidentally make contact, (for instance if the bus-bars from one module ended
up touching another module' s bus-bars), damage will almost certainly result. In cases
like that, the guarantee is definitely void.
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