Important
The block diagram also represents the modular design of the ASR-10. Each one of the main components
represented in the diagram can be replaced, if necessary, without disturbing the other components in the
system. Looking at the diagram you see:
1. Disk Drive
2. Power Supply Board
3. Digital Jack Board
4. Digital I/O Board
5. Digital Board
6. Keyboard (KPC Board on Rack)
7. Analog Jack Board
8. Analog Board
9. Keypad/Display Board
10. SCSI Board
ll.OEX6sr
Board
.12.
Pitch and Mod. Wheel
Assembly
Data storage and retrieval device.
Converts AC voltages to regulated DC and unregulated AC and DC to
be distributed throughout the system.
Connections to facilitate the use of the optional digital I/O board. MIDI
jacks, CV pedal jack, and footswitch jacks
Optional board that enables the ASR-10 to use digital audio data directly
from a digital source, such as DAT. It also allows the ASR-10 to output
digital audio data directly to a digital recorder, such as DAT.
The engine of the ASR-10. It has the microprocessor, the sound
processor, operating system memory, sound memory, effects processor,
and floppy disk controller. It also has the circuitry to control all inputs
to and outputs from the system.
Sends performance information (note on, note off, pressure) to the ASR-
10 digital board. Also handles communications to and from the
keypad/display board.
Has the input pre-amp circuitry on it, all of the audio inputs and outputs
(except for OEX-6).
Converts analog audio signals into digital audio signals and passes them
to the digital board. Converts digital audio signals to analog audio
signals and supplies them to the audio outputs and headphone amplifier
Transmits button presses to the digital board through the keyboard, and
receives display data from the digital board through the keyboard. See
figure 7 for further details.
Allows access to SCSI devices for storage and retrieval of data, and disk
track digital recording. It is an optional board on the ASR- 10 keyboard.
Optional board on the ASR-10 keyboard. Adds three additional stereo D
to A converters for six additional analog outputs.
Transmits pitch and modulation wheel movements to the digital board. It
is not included on the ASR-10 rackmount.
8
ASR Service Manual
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