via this eBay listing

Everything works as it should — zero issues.
I purchased this in 2023 from a 100% feedback eBay seller. He made the following updates:
- power supply electrolytic capacitors replaced
- voice board electrolytic capacitors replaced
- firmware upgraded with Tauntek one: you can now easily control and program the synth with any midi controller
- keyboard dismantled and contacts and bus bar cleaned
- meticulously calibrated
- panel board and case fully dismantled, cleaned and polished
PLEASE NOTE: This is a 220-volt unit. You will need a step-up transformer to use this in the U.S. or Asia. This auction includes the power cable with the Euro/U.K. plug as shown in the photos, but no step-up transformer is provided."