[sdiy] Roland DIN sync - pin 4 use?

[Synth-DIY]

Hi!

trevor at resonance.fsnet.co.uk skriver:
>Does anyone actually use pin 4 on the Roland DIN sync24 interface?

I have a SBX-80 - a SMPTE syncronizer/master clock. It doesn't not use (send) pin
4 at all. At least the schematics says so. I don't have full schematics on the
909 but the SBX-80 is of the same age as the 909 so they might share the non-use
of pin 4.

The 606 uses pin 4 for TAP, just like the 303.

regards Per

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