Note: links to listings are affiliate links for which the site may be compensated.

via
this auction
via the listing: "I had the synth serviced by an expert professional musical instrument repair company, serving the Pro Audio and Keyboard community - EPR Electronics in Florida in 2007. Here is a rundown of the work I had performed
Complete thorough cleaning of the interior and all boards.

Complete replacement of ALL Sliders with factory replacements.
Complete replacement of ALL Knobs/Potentiometers with factory replacements.
Replacement of the power capacitors.
Replacement of several resistors.
Replacement of main output jack.
Replacement of VCA IC Chip - Curtis 3360
Replacement of VCF - Roland IR3109
Replacement of internal memory battery
Replacement of many of the red LEDs on the control surface with blue, green, and yellow LEDs ( I got tired of the plain red). Now it looks as if you're at the helm of the Starship Enterprise."