EPROM for Sequential Circuits Prophet VS Version 1.45 Firmware Update

Sequential Circuits Prophet VS firmware OS update v 1.45

This is firmware update 1.45 and is based on the latest official released operation system by Sequential Circuits (SCI). This operation system update/upgrade requires two eprom chips as revealed in the article`s photos and the chips will be labeled to help you locate the correct chip socket. For more info, please check below.

Features/improvements:

 • NV PROGRAM NUMBER: Program Number is now remembered after power off

 • DATA INC/DEC: Data increment/decrement function has been added for fine adjustment

 • LFO SYNC: By default the VS has free running LFOs. If you change the 8th digit of the patch name to an 'S' (e.g. "Zenny 1S") then both LFOs are synced to the keys. If the 8th digit is an 'X' ("Zenny 1X") only LFO 1 is synced. LFO 2 will free-run!

 • ARP SYNC: Arpeggios are synced with the playing of the first note. Clock is reset when the first note is played.

 • LFO Sync & ARP Sync menu options: Adds "LFO Select" and "ARP Option" menu items, both are global features and saved in memory.

 • MASTER TUNE: Under the master tune screen a field has been added which provides a +\- 12 semitone transposition!!

 • LOCAL ON/OFF: Under the MIDI options switch a screen has been added to provide local keyboard enable and disable.

 • NRPN MSB/LSB IN & OUT: The original software had the byte order flipped LSB->MSB so many controllers (BCR2000, BeatStep Pro, etc) would not function correctly. HUGE IMPROVEMENT!

 • MIDI BUG FIX: In the original code, both ARP Rate and Split Point were disabled in the MIDI routine. The ARP Rate MIDI bug is fixed so now its NRPN controllable. If the ARP is off and you send the Rate NRPN then the ARP will turn on.

Note:

• Fully verified before shipping and professionally packaged in anti-static material.
• The Sequential Circuits Prophet VS on the picture is not for sale :)