RE: [AH] Pearl SC40 membrane buttons

From Peter Forrest
Sent Wed, Jan 24th 2018, 23:00

I just heard from the tech who is looking at this Pearl SC40.

"Very unfortunately although the pcb footprint looks like a normal Omron
tactile switch from behind they turn out to be some cheap nasty carbon puck
on a silicone dome type switch with a snap on custom cap (heck, even the
CASIO CZ1000 uses Omron switches!).
 
The carbon pucks suffer from the same issue as the ones in the Juno-106
keybed and lose conductivity and the silicone domes are supposed to act as
tactile return springs but they are too weak as the plastic sliders are
binding."

He searched for replacements without success. 

It looks like pretty terminal news.
Anyone have any ideas?
The basic sound is excellent, so it will be really sad if this design means
these machines don't survive.
Peter





-----Original Message-----
From: Florian Anwander [mailto:xxxxxxxxx@xxxx-xxxxxx.xx] 
Sent: 18 November 2017 16:18
To: xxxxxxxx@xxxxxxxxx.xxx
Subject: Re: [AH] Pearl SC40 membrane buttons

My SC-40 doesn't have membrane buttons. There are normal button caps and I
assume that inside it is working with usual momentary switches.