

JJ sequencer
This OS
operates with the following product.
MPC2500, MPC2500LE,
MPC2500SE
|
This site is made so that it may operate
normally by Internet Explorer.
When download is impossible, please use Internet Explorer for a
browser.
| Version |
File
name |
Size |
Available |
Upload
day |
| 3.09 |
mpc2500_jv309.bin |
867KB |
Download |
Jan 09, 2009 |
|
| Please install XL from the load mode of free JJ OS
Ver3.09. |
| Version |
File name |
Size |
Available |
Upload day |
| 1.24 |
mpc2500_xl124.osx |
1116KB |
Download |
Jan 04, 2010 |
|
| File
name |
Size |
Available |
Upload
day |
| adsr_example.zip |
8KB |
Download |
Mar 30, 2008 |
|
Download
of OS1 and OS2 
Video of
the user's who is using JJ OS
MPC1000 JJ OS

JJ OS adjusts the
contrast of LCD by a [STOP]+ DATA wheel.
JJ OS Version
3.09
is
free.
Explanation of Version 3.09
On-line manual(Ver3.09)
How to Install Ver3.09
JJ OS Comparison
Chart
The price of XL is
US$113.00. (Download is free)
Unless it enters the password of XL, the save of XL is impossible.
Even if a function except a save does not enter a password, it
can be used altogether.
The screen of SAVE will be displayed if a password is put in.
The price of a password is US$ 113.00.
Payment is PayPal only.
The
password purchase is here. 
Explanation
of XL
How to Install XL
XL on-line
manual
XL_pdf manual 15MB
When you
change OS, please switch on a power supply, pressing the ERASE
button first.
Please press the ERASE button until a main screen is displayed.
If this operation is not performed, MPC may freeze or it may
crash.
Important (About compatibility)