Kurzweil PC1SE Expansion Board Removal

"[email protected] [KurzList]" <[email protected]> 02 Apr 2019 14:30:18 -0700

Newsgroups	gmane.music.equipment.kurzweil
Message-ID	<[email protected]>

Is a Kurzweil PC1SE playable with the remaining sounds 
 after removing both the orchestral and classic keys roms ?