Roland System-100 Model-101

Provides an overview of the physical arrangement of components and boards.

Explains the function and composition of various printed circuit board assemblies.

Illustrates the overall functional relationships between different circuit blocks.

Shows the pin configurations and top views of various semiconductor components used.

Detailed schematic illustrating the Voltage Controlled Oscillator (VCO) circuit.

Diagram showing the physical placement of components on the VCO-4 board.

Schematic detailing the Voltage Controlled Filter (VCF) and Voltage Controlled Amplifier (VCA) circuits.

Diagram showing component placement on the VCF-VCA (OP-27) board.

Schematic for the PS-22/PS-24 power supply board.

Schematic for the A-440 Hz Standard Oscillator (OP-30) board.

Diagram showing component placement on the power supply board.

Procedure for adjusting the +14V and -14V output voltages of the power supply.

Procedure for calibrating keyboard control voltage outputs for accurate pitch.

Steps to adjust the triangular and square wave forms of the VCO.

Procedure to set the pulse width modulation for the VCO wave forms.

Steps to calibrate the VCO frequency output across the keyboard range.

Procedure to adjust the DC balance of the Voltage Controlled Filter for symmetrical output.

Procedure to set the frequency range variation for the VCF across keys.

Steps to calibrate the VCF cutoff frequency for accurate pitch response.

Procedure to set the cutoff point for the Voltage Controlled Amplifier.

Procedure to adjust the DC balance of the VCA for minimal audible artifacts.

Procedure to set the zero point for the ADSR Envelope Generator output.

Procedure to set the output level for the noise generator.

Procedure to tune the internal A-440 Hz oscillator using a tuning fork.

Procedure to adjust the LFO output wave form to a sawtooth shape.

Visual identification of major mechanical and external components.

Detailed layout of controls, jacks, and switches on the front panel.

Exploded view and component layout for the keyboard mechanism.

Diagrams showing knob and cover part numbers and placement.