DOEPEFER A-157-2, A-157-3 User Manual

DOEPFER System A-100 Trigger-Sequenzer A-157-2/3
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1. Introduction
The Trigger-Output Module A-157-2 and the Control­Input Module A-157-3 are both required to drive the Trigger Sequenzer A-157-1:
The Control-Input Module A-157-3 is used to control the sequencers run functions (start / stop / reset / clock). You can either control them manually using the push buttons, or by applying external signals of +3 Volts. Please note: To run the sequencer, an external clock signal has to be patched to the A-157-3 clock input socket. Please refer to page 2.
2. A-157-2 Trigger Output Module
The Trigger-Output Module A-157-2 is self explaining. The eight sockets provide the trigger signals (+12V) for each sequencer track.
IMPORTAND: Before installing the modules A-157-2 and A-157-3 please read carefully the setup instructions on pages 3 and 4 !
Trigger-Sequenzer A-157-2/3 System A-100 DOEPFER
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3. A-157-3 Control Input Module
The Control-Input Module A-157-3 is used to control the sequencers run functions (start / stop / reset / clock). You can either control them manually using the push buttons, or by applying external signals of +3 Volts, resp. a clock signal.
3.1. Control keys / inputs
Start
Hitting the key (or routing a positive pulse into the respective jack) will get the sequencer going from the current step position.
Stop Hitting the key (or routing a positive pulse into the respective jack) will stop the sequencer at the current step position.
Reset With the next incoming clock pulse, a key hit (or routing a positive pulse into the respective jack) will start thesequence at step #1.
Clock Each time you are hitting the key (or routing a positive pulse into the respective jack), the sequencer will advance to the next step. A steady clock signal (pulsewave) is used to drive the sequencer at a steady pace.
Func. 1-4
(not implemented yet)
DOEPFER System A-100 Trigger-Sequenzer A-157-2/3
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4. Setting up the A-157-2/3 modules
The A-157-1 main module needs to be mounted in your eurorack case side by side the A-157-2 trigger output module and the A-157-3 control input module. Simply connect flat ribbon cables with the following sockets:
(1) the socket labelled „JP2“ of the A-157-2 trigger output
module with the socket labelled „JP3“ on the A-157-1 trigger matrix PCB.
(2) the socket labelled „JP1“ of the A-157-3 control input
module with the socket labelled „JP4“ on the A-157-1 trigger matrix PCB.
(3) the socket labelled „JP1“ of the A-157-2 trigger output
module with the A-100 bus power connector.
(4) the socket labelled „JP1“ of the A-157-1 trigger matrix
module with the A-100 bus power connector.
Please make sure that the position of the flat ribbon cables coloured stripes fit to the figure on the following page resp. to the labelling on the PCBs.
The figure on the following page will show you claerly all necessary connections. Again – please strictly observe these instructions!
WARNING: STRICTLY OBSERVE THESE INSTRUCTIONS!
Install carefully and gently. Doepfer cannot accept responsibility or liability for modules damaged by installing them improperly or by using brute force.
Trigger-Sequenzer A-157-2/3 System A-100 DOEPFER
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