SEQUENTIAL 500 PRO FX SERVICE MANUAL ocr

Sequential Circuits, Inc. MODEL 500 PRO-FX SYSTEM CONTROLLER 3051 North First Street PRELIMINARY SERVICE DATA San 3ose, CA 9513^-2093 Manual No. TN500-0 (な08) 946-5240 Issued: September, 1982 TELEX: 36料12 INTR Nijverheidsweg 11c 36^1 RP Mijdrecht TELEX:12721 SQNTL NL SEQUENTIAL CIRCUITS, INC. All rights reserved. Printed in USA. PRELIMINARY INFORMATION All subject to change. The System Controller is a Z-80-based microcomputer running from a PROM. Two RAM ICs are standardly included, but up to six RÁM ICs can be added. System Inputs include the control switches, footswitches, tape input (sync tones and data), and the ADC voltage, Vade, which is multiplexed from each module and processed in the computer by U22^f DAC and U227 ADC window comparator, similarly to ADC function in the Rev 3 Prophet-5s. 0225 System Bus transciever transfers data from the Module Bus to the Controller data bus. Sy

Sequential Circuits, Inc. MODEL 500 PRO-FX SYSTEM CONTROLLER 3051 North First Street PRELIMINARY SERVICE DATA San 3ose, CA 9513^-2093 Manual No. TN500-0 (な08) 946-5240 Issued: September, 1982 TELEX: 36料12 INTR Nijverheidsweg 11c 36^1 RP Mijdrecht Netherlands 02979-6211 TELEX:12721 SQNTL NL Copyright©1982 by SEQUENTIAL CIRCUITS, INC. All rights reserved. Printed in USA. PRELIMINARY INFORMATION All subject to change. The System Controller is a Z-80-based microcomputer running from a PROM. Two RAM ICs are standardly included, but up to six RÁM ICs can be added. System Inputs include the control switches, footswitches, tape input (sync tones and data), and the ADC voltage, Vade, which is multiplexed from each module and processed in the computer by U22^f DAC and U227 ADC window comparator, similarly to ADC function in the Rev 3 Prophet-5s. 0225 System Bus transciever transfers data from the Module Bus to the Controller data bus. System outputs include the switch and display LEDs, tape output (sync tones and data), Slot Selects (from U108), data via the transceiver, and Vdac, which is strobed to the Module Bus and demultiplexed within installed modules. TRIMS The only Controller…