I'm thinking you might benefit from a camera with autofocus
Good job though, i was wondering about the RX21, someone told me the bends weren't as good as the RX17............... or was that the RX120 i'm thinking of?
My camera phone's definitely not the best tool for the job but its all I have unfortunately! Can't blame it all on the phone though, some of it is my jittery hands..
I can't comment on the other drum machines as this is the only one I've ever touched.. I am intrigued to know the family connections though.
For example in my RX21 there's a socketed chip that is manufactured by Yamaha but looks to my uneducated eye like an EEPROM - I wondered if that's where the samples are stored and if its possible to replace/hack it somehow.
EEPROMS are usually fairly small, often 8-pin devices. The sound ROM would be about a 28-pin or 32-pin chip. The number might give some clue to its capacity, or you might get something from the manual. In any case, nearly all mask-programmed ROMs, EPROMs and Flash memories follow the JEDEC standard for pin layout.
Whether or not you can understand what's in the ROM is another matter ;-)
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