Hallo Colin! Normally the Roland samplers have a fuse resistor at the mouse port. At least the S330 has it - I don't have the S550 schematics here so I can't have a look at that one. But I think it is the same. Have a look at the attached schematics. (Sorry the schematics will be killed for the group emails - ask me per private email if you need it). But the S50 doesn't have the fuse resistor and not the buffer between the port and ASIC as you can see here: http://rrzs42.uni-regensburg.de/~hep09515/keyboards/s-50/Schematics/600dpi/… Ciao Peter http://come.to/ullrich Zitat von Colin Shapiro <musos(a)icon.co.za>za>: ---------------------------------- Ein Service von http://www.news.at

Am 23.07.2009 um 00:47 schrieb Colin Shapiro: On the S-330, pin 5 of the ext control jack is connected to +5V via a fuse resistor. Don't know for the S-550, but since it's the same mouse, it's probably just the same here. You could check the voltage on pin 5 (pin 9 is ground) with a voltmeter. If there's no voltage present, most probably the fuse resistor is blown. The schematic says it's value is 0.15 ohms. Ingo

There was a recent eBay auction where a guy was selling a USB to Serial mouse converter with his S-550. He also claimed it would work on an S-760.  Search the completed listings, and maybe you could contact him for more info. Good Luck Ingo,    Would it be possible to make a converter cable that would plug into the S-330 and the other end of the cable would be USB to plug-in a regular USB mouse? Was there a good reason why Roland designed it this way, or was it to sell a propriety mouse?    Best regards,    David  -----Original Message----- From: David A. Roth <david(a)roth-music.com> To: sgroup sgroup <sgroup(a)sgroup.ca> Sent: Thu, Jul 23, 2009 11:05 am Subject: Re: [sgroup] Mouse port ?? Ingo,    Would it be possible to make a converter cable that would plug into the S-330 and the other end of the cable would be USB to plug-in a regular USB mouse? Was there a good reason why Roland designed it this way, or was it to sell a propriety mouse?    Best regards,    David    On Jul 23, 2009, at 8:09 AM, Ingo Debus wrote:    > adly that happened to me.  >   _______________________________________________  Sent by the sgroup mailing list  sgroup(a)sgroup.ca  For subscribe/unsubscribe: http://www.sgroup.ca/mailman/listinfo/sgroup  See http://www.generalconcepts.com/sgroup/ for more information. 

Also the same port style as Atari ST, Amiga, Commodore 64, Atari 400/800, etc. However, note that many of these platforms *also* do not have compatible interchangeability with their mouse ports. The Roland samplers used MSX-style mice, and I'm going to bet that the internals or "brains" of these samplers contain a lot of the same logic as the old MSX-based home computers of the mid-to-late 80s. Just another standard, using its own standard :) Sorry to hear that another mouse port bit the dust. - t

http://morganstudios.com/WhatIsThis.mp3 Anyone know what library that came from?