DOEPFER A-173-2 Micro Keyboard Receiver User Manual
- June 16, 2024
- DOEPFER
Table of Contents
DOEPFER A-173-2 Micro Keyboard Receiver
DOEPFER MUSIKELEKTRONIK GMBH ANALOG MODULAR SYSTEM A-100
A-173-2 Micro Keyboard Receiver
Position and function of the pin headers and trimming potentiometers Board A.
Specifications:
- JP4: External MIDI In (not used)
- JP5: Internal MIDI In (connect to JP4 of A-173-1)
- P4: Scale Gate
- P2: Scale CV
- P3: Offset Gate
- P1: Offset CV
- JP1: Bus Connector
| Header/Component | Description |
|---|---|
| JP4 | ext. Midi In (not used) |
| JP5 | int. Midi In (to JP4 of A-173-1) |
| P4 | Scale Gate |
| P2 | Scale CV |
| P3 | Offset Gate |
| P1 | Offset CV |
| JP1 | Bus Connector |
Product Usage Instructions:
Connecting the A-173-2 Micro Keyboard Receiver:
To use the A-173-2 Micro Keyboard Receiver, follow these steps:
- Ensure that your A-100 Analog Modular System is powered off.
- Locate the JP1 Bus Connector on the A-173-2 module and connect it to the corresponding bus connector on your A-100 system.
- If you want to use external MIDI input, connect your MIDI device to the JP4 (external MIDI In) on the A-173-2 module. If not using external MIDI, skip this step.
- To use internal MIDI input, connect the JP5 (internal MIDI In) on the A-173-2 module to the JP4 of the A-173-1 module.
- Connect the Scale Gate (P4) and Scale CV (P2) outputs to the desired destinations in your modular system.
- Connect the Offset Gate (P3) and Offset CV (P1) outputs to the corresponding inputs on your modules, if required.
Board Layout Description
The image displays the detailed layout of the A-173-2 Micro Keyboard Receiver
board. It includes various electronic components such as ICs, resistors,
capacitors, diodes, and pin headers. Each component is marked with identifiers
such as “IC2”, “R41”, and “C9”. Additionally, specific parts of the board are
highlighted to represent different control voltage and gate signals, such as
“Scale Gate” and “Offset CV”. There are also notations for connections to
other modules, like “int. Midi In” which connects to “JP4 of A-173-1”. The
image is detailed and provides a visual representation of the circuitry for
users familiar with electronic schematics.
Configuring Scale and Offset:
The A-173-2 Micro Keyboard Receiver allows you to configure the scale and
offset for precise control over the output. Follow these steps:
- Power on your A-100 system.
- Use the trimming potentiometers located on Board A of the A-173-2 module to adjust the Scale Gate (P4), Scale CV (P2), Offset Gate (P3), and Offset CV (P1) as per your requirements.
Using the A-173-2 Micro Keyboard Receiver:
Once the A-173-2 is connected and configured, you can start using it with
your modular system. Here are some guidelines:
- When using external MIDI input, ensure that your MIDI device is sending the appropriate MIDI messages to control the A-173-2.
- When using internal MIDI input, ensure that the A-173-1 module is properly configured to receive MIDI messages and send them to the A-173-2.
- The Scale Gate and Scale CV outputs can be connected to modules that require gate and control voltage signals for pitch scaling.
- The Offset Gate and Offset CV outputs can be connected to modules that require gate and control voltage signals for pitch offsetting.
Frequently Asked Questions (FAQ)
Can I use both external and internal MIDI input simultaneously?
No, you cannot use both external and internal MIDI input simultaneously. You can choose either external or internal MIDI input based on your requirements.
How do I know if the A-173-2 Micro Keyboard Receiver is receiving MIDI signals?
To ensure the A-173-2 is receiving MIDI signals, check the MIDI settings on your connected MIDI device. Additionally, you can use an appropriate MIDI monitor or check the LED indicators on the A-173-2 module to verify MIDI activity.
What is the purpose of JP4 and JP5
JP4 is an external MIDI input that is not used, and JP5 is an internal MIDI input that connects to JP4 of the A-173-1 module.
How are the scale and offset functions implemented on the A-173-2?
The scale function is controlled by P4 (Scale Gate) and P2 (Scale CV), while the offset function is controlled by P3 (Offset Gate) and P1 (Offset CV).
What is the function of JP1?
JP1 serves as the bus connector for the module.