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"Recently maintained and upgraded by a professional synth engineer:
power supply (220V) electrolytic/tantalum capacitors and regulators are replaced
all voice board electrolytic/tantalum capacitors are also replaced
new battery box with 2x AAA batteries (for easy future replacement) is installed
ROM has been upgraded to the latest version 14.0 (mainly fixes various midi bugs and introduces Unison detune)
new Z-80 CPU is installed in socket
internal boards, sliders and keyboard contacts are cleaned
most of the ICs are socketed (for easier future maintenance)
the instrument & wheel are fully calibrated/tuned
factory presets are restored"
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