STUDIO REPAIR » Roland » JUNO-60 »  Chorus PCB     [Image 28 of 51]  :: Jump To  
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Roland Juno-60  •  Chorus PCB
Left side view with up-lifted bender unit to unsheathe the chorus PCB
Roland Juno-60 - Opened * …

Roland Juno-60 - Opened * Opened case - left side view

Roland Juno-60 - Opened * Opened case - right side view

Roland Juno-60 - Circuit Boards * In this view you can see all the PCBs: both panel boards, the main board, the power supply, the bending unit and the chorus PCB.

Roland Juno-60 - Main Board * …

Roland Juno-60 - Opened * Left Hand Controller Section Dismounted

Roland Juno-60 - Bending Unit PCB * …

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Roland Juno-60 - Chorus PCB - Image by Nikolaus Riehm - Equipment courtesy of Marek Hemmann
Roland Juno-60 - Chorus PCB * Chorus circuitry consists of one MN3009 256-stage BBD per channel, driven by a MN3101 clock generator and modulated by a separate chorus LFO on the right panel PCB.

Roland Juno-60 - Chorus PCB * A dusty chorus PCB

Roland Juno-60 - Chorus PCB * Chorus circuitry consists of one MN3009 256-stage BBD per channel, driven by a MN3101 clock generator and modulated by a separate chorus LFO on the right panel PCB.

Roland Juno-60 - Right Panel PCB * Dismounted right panel PCB

Roland Juno-60 - Right Panel PCB * The right hand panel PCB contains the Intel 8251 USART for the DCB connection

Roland Juno-60 - Picture * The right hand panel PCB contains the masked-programmed 80C49 panel controller. It scans all pots, sliders, buttons and stores the patches into memory and handles the cassette tape writing and reading.

Roland Juno-60 - Memory * IC11 and IC12 is the battery backed-up patch memory. 1k x 4 bit per chip = 1 kilo byte



 
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