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DOEPFER A-100 Series User Guide

DOEPFER A-100 Series
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For small DIY set-ups with up to eight modules and a maximum of 380 mA supply
current the A-100SSB (small supply/bus board) is intended. A-100SSB is the
combination of a small power supply (+12V/max. 380mA, -12V/max. 380mA) and a
bus board with 8 connectors for A-100 modules.
A slightly modified version of the A-100SSB is used also in the case A-100LC1: the
supply and bus unit of the A-100SSB are separated and connected via cables.
That's why there is a common user's guide for both units.
The power supply provides the voltages +12V and – 12V required to run the A-100
modules. In addition +5V are available which are required for some older A-100
modules and modules from other manufacturers.
The maximum current load is 380 mA for +12V, 380 mA for -12V, and 50 mA for
+5 V. If +5V is used the current is taken from the +12V source. In this case the
currents for +12V and +5V have to be added and the sum has to be not more than
380mA.
The A-100SSB/A-100LC1 bus provides connections for up to eight A-100 modules or
modules from other manufacturers which are 100% compatible. The busboard 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, ADSRs).
The pc board includes a switching power supply module that converts the incoming
mains voltage (110 – 240V AC) into the low voltages (+12VDC, -12VDC) required to
run the A-100 modules.
Important safety notes
A-100SSB/A-100LC1 is equipped with an IEC socket to establish the connection to
mains by using a suitable cable. During operation dangerous voltages are present at
the bottom of the pc board ! For this reason a metal cover is located at the bottom of
the pc board which prevents the touching of the dangerous parts of the circuit.

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DOEPFER A-100 Series Specifications

General IconGeneral
TypeModular Synthesizer System
ManufacturerDoepfer Musikelektronik GmbH
Power SupplyExternal Power Supply
Current ConsumptionDepends on modules installed
DimensionsVaries by case size
Number of SlotsVaries by case size
WidthVaries by case size

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