Sv: [sdiy] tr909 schematics -> sequencer part

[Colin f]

> This particular 909 had an EPROM installed in a socket instead of the
> usual solderd in ROM , so I made a hex-dump if anyone need the 909
> program.

Hmm - I tried to socket my 909 ROM, but found the chip was in contact with
the panel once the socket height was added. I was worried that might put
strain on the board, so took it back out.
I took a hex dump of my ROM, but if you have the later ROM with the midi
clock bug fixed, that would be very useful...
I disassembled the 909 ROM too, but the NEC 781x assembler is rather
unusual, and not easy to follow.

Cheers,
Colin f



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