Roland System 700 Main Console - semi-modular synthesizer
One of my dreams come true!

The Main Consome and Keyboard Controler also known respectivelly as block 2 and block 1 of the huge Roland System 700. The main Console is of the semi-modular kind, that is some inputs an outputs are internally patched.

Main Console modules

VCOs 702A/B/C
Voltage controlled oscillators
guts of VCO1
guts of VCO2 & 3
 		Schematics

VCFs 703E/B
Voltage controlled filters (E : 24dB/oct; B : 12dB/oct multimode)
guts of VCF1
guts of VCF2
 		Schematics 703A

Schematics 703B

VCAs 704A/B
Voltage controlled amplifiers
guts of VCA
Schematics

NOISE+RING MODULATOR 708A
Noise generators + Balanced modulator
guts of Noise RM
Schematics


SAMPLE AND HOLD 709A
guts of S&H
Schematics

SPRING REVERB+PHASER+OUTPUT MIXER+TUNER 711A
Spring reverberation + Phaser + Audio mixer/paner + Tuning references
guts of OUTPUT
guts of OUTPUT 		Schematics

KEYBOARD INTERFACE+VOLTAGE SOURCE+HEADPHONES 712A
Interface for two keyboard controllers + Adjustable voltage sources + Headphones output
guts of interface, voltage source, headphones
Schematics

LFOs 706A/B
Low frequency triggable oscillators, (A) adjustable delay
guts of LFO1
guts of LFO2
 		Schematics


PREAMPLIFIER+ENVELOPE FOLLOWER+INTEGRATOR 707A
Signal pre-amplifier + Envelope follower + Integrater/Signal smoother

guts of the pramp, envelope follower, integrator
Schematics

Dual ADSR 705A
Dual envelope generator ADSR
guts of the dual ADSR
Schematics

MIXER+MULTIPLES+PSU PANEL  716A+710A+718A
Summing mixer/inverter+ Multiples + Power control panel
guts of mixer
guts of power control and multiples
 		Schematics 716A

Schematics 718A

KEYBOARD CONTROLER 701
5 octaves keyboard controller

Schematics

The schematics available on this page are my redrawings of scans of the original schematics which can be found at Florian Anwander's website.