Vintage Synth Repair

Notes on Prophet-5 sysex:
The P-5 has got a pretty awkward way of handling sysex.
First, you have to request each patch individually, bulkdump not possible.
And when the P-5 sends a patch, it's not terminated with F7.
(This can make it difficult to successfully dump the P-5 since many sysex programs will wait for an F7 before they continue sending requests.)
If one patch is requested it's terminated with F0, making the total number of bytes equal 52.
But if several patches are requested then the last patch for some reason won't have the F0 added.
So the size of a 40prog dump is 39*52+51=2119bytes. You then have to manually add an F7 to make the dump acceptable for some seq. programs
giving a total of 2120bytes for a complete bank dump of 40 progs.
That's what you get when you download the banks at this site.
Then there it's the problem of bank allocation.
When loaded from tape the patches always ends up in the active bank.
In the sysex code each patch is given a number from 0-119.
All factory sets found here will end up in bank1.
To be able to load them into bank 2 and 3 I've made a simple Win3.1 conversion program.

Here you can download the Prophet-5 midi implementation.

Notes on Prophet-10 sysex:
Same comments as for Prophet-5, but the dumpsize is 69 bytes per patch, 68 for the last patch in the dump.