KORG POLY-61 Owner's Manual

Pages 116

Year 1984

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KORG POLY-61 Specification

The KORG POLY-61 is a polyphonic analog synthesizer that was released in 1982, showcasing a blend of analog and digital technologies. It features six-voice polyphony, allowing users to play rich, full chords with ease. Each voice is equipped with two digitally controlled oscillators (DCOs), providing stable, tunable waveforms that include sawtooth and pulse waves. The POLY-61 includes a resonant low-pass filter per voice, which can be modulated for dynamic sound shaping. The envelope generator is an ADSR type, facilitating detailed control over amplitude and filter dynamics.

The POLY-61's architecture is digitally controlled but retains the warm sound characteristics of analog synthesis. Its interface includes a membrane switch panel and a parameter-based editing system, enabling precise adjustments through a combination of button presses and a single data slider. This design reflects the transition period of synthesizers moving from knobs to button-based interfaces.

A notable feature of the POLY-61 is its arpeggiator, which offers various modes for creating rhythmic patterns automatically. The synthesizer also supports a chord memory function, allowing users to store and recall chord shapes easily. The onboard chorus effect adds depth and movement to the sound, expanding its sonic palette.

Connectivity includes standard 1/4-inch audio outputs and a control input for the arpeggiator clock, facilitating synchronization with external devices. Although it lacks MIDI capability, the POLY-61's robust sound engine and performance features make it a versatile instrument for both studio and live applications. With its unique combination of digital control and analog sound generation, the KORG POLY-61 remains a distinctive instrument in the landscape of vintage synthesizers.

KORG POLY-61 F.A.Q.

How do I perform a factory reset on the KORG POLY-61?

To perform a factory reset on the KORG POLY-61, turn off the synth, then hold down the "WRITE" button while turning it back on. This will restore the factory settings.

What should I do if some keys on the KORG POLY-61 are not responding?

If certain keys are not responding, check for dust or dirt under the keys and clean if necessary. Also, inspect the key contacts and the ribbon cable connections to ensure they are secure.

How can I save my custom patches on the KORG POLY-61?

To save custom patches, press the "WRITE" button followed by the memory location number where you want to save the patch. Make sure you are in the program mode when doing this.

What is the best way to maintain the KORG POLY-61's battery?

Regularly check the battery voltage and replace it every few years to prevent leakage, which can damage the circuit board. Consider installing a battery holder for easier future replacements.

How do I troubleshoot tuning issues on the KORG POLY-61?

If you experience tuning issues, use the built-in auto-tune function by pressing and holding the "TUNE" button until the tuning process completes. Also, check if the internal battery is functioning properly.

Can I connect the KORG POLY-61 to modern MIDI equipment?

The KORG POLY-61 does not have native MIDI capabilities; however, you can use a MIDI retrofit kit to add MIDI functionality. Several third-party options are available for this purpose.

What should I do if the display on my KORG POLY-61 is not working?

If the display is not working, check the power supply and the connections to the display circuit. Inspect for any loose cables or signs of damage on the display itself.

How can I clean the exterior of my KORG POLY-61?

Use a soft, dry cloth to clean the exterior of the synth. Avoid using any solvents or abrasive cleaners that could damage the finish or the labels.

What are the common issues with the KORG POLY-61 and how can they be fixed?

Common issues include key contact problems, battery leakage, and tuning drift. Regular maintenance, replacing the battery, and cleaning the key contacts can help prevent these issues.

How can I enhance the sound capabilities of my KORG POLY-61?

Enhance the sound by using external effects processors, such as reverb and chorus pedals. Additionally, consider MIDI retrofitting for more control options from external sequencers.