KORG POLY-61 ANALOG SYNTHESIZER FULLY SERVICED MODIFIED CR2032 CLEAN UNIT

KORG POLY-61 ANALOG SYNTHESIZER FULLY SERVICED MODIFIED CR2032 CLEAN UNIT

Condition: Used

Description

KORG POLY-800 8-voice programmable polyphonic synthesizer released in 1983

Features DCO (Digitally Controlled Oscillator) for stable pitch

Analog circuitry after the VCF provides a distinctive sound character

Known for its wide tonal range, from bright leads to deep chord pads

Considered a highly affordable and innovative model at the time of release

Many units from this era suffered from NiCd battery leakage, often causing circuit corrosion and failure

This unit has undergone restoration work and circuit modifications to address these issues and is fully functional

Maintenance and operation status:

Internal battery circuit modified and replaced with a CR2032 holder-type battery

Charging circuit disabled and reverse current protection diode added for safe operation

Preset memory data is preserved reliably using the CR2032 system

All tact switches on the circuit board have been replaced with new parts for improved responsiveness

Potentiometers and input/output jacks have been cleaned

All keys have been tested for sound output

Factory preset data restored via external tape input

Interior and exterior cleaning completed

Included items:

Main unit (power cable directly attached)

Item Details

• Brand: Korg
• Type: Keyboard Synthesizer
• Number of Keys: 61
• Type of Keys: Synth
• Model: Korg Poly-61
• Analog/Digital: Analog
• Features: DCO Oscillators, Analog VCF/VCA, Patch Memory, Arpeggiator, Batte
• Country of Origin: Japan
• Customized: Unknown

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