STUDIO REPAIR - Korg Polysix - Effects Board

Picture Content Information
▪ Device:		Korg Polysix
▪ Topic:		Effects Board
▪ Abstract:		KLM-368A
▪ Owner:		Equipment courtesy of Jan-A. Czmok
▪ Creator:		Image by Nikolaus Riehm
▪ Website:		studiorepair.com
▪ Editor:		Nikolaus Riehm

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Korg Polysix • Effects Board

KLM-368A

Korg Polysix - Voice Board * KLM-366B (New Production)

Korg Polysix - Voice Board * KLM-366B (New Production): Soldering Side

Korg Polysix - Opened * A Polysix Equipped with an EES MIDI Interface (Piggyback on the CPU Board)

Korg Polysix - Voices Circuitry * Discrete Built VCOs

Korg Polysix - Voices Circuitry * SSM2044 4-Pole VCF & SSM2056 ADSR Integrated Circuits

Korg Polysix - CPU Board * PCB KLM-367A w/ Piggyback EES Midicomp MIDI-Extension

Korg Polysix M - PolySixM * PolySix M Circuit Board PS6M.1

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Korg Polysix - Effects Board - Image by - Equipment courtesy of

Korg Polysix - Power Supply * KLM-376

Korg Polysix - Panel Board * KLM-371

Korg Polysix - Bender Box * Left Hand Controller Section

Korg Polysix - Photocoupler * HTV P1501 Photocoupler

Korg Polysix - Photocoupler Fix * Replacing Faulty HTV P1501 Photocoupler w/ FET-based Circuitry (Schematic by Stefan Schmitt, 2015)

Korg Polysix - Photocoupler Fix * Replacing Faulty HTV P1501 Photocoupler w/ FET-based Circuitry (Schematic by Stefan Schmitt, 2015)

Korg Polysix - Testing * …

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