Yamaha CS80

Hey Guys,

I was wondering if there is any fellow CS-80 owner in the Frankfurt,
Germany area.

Now this is peanuts for all you technically skilled people out there,
but while my CS80 is in perfect condition, Voice Card 2 in Channel I
requires a bit of tuning in the low range.

I know I need to acquire this skill, but doing it for the first time,
I'd appreciate if someone was around who has done this before.

Cheers
Worsel