Hey guys, I am having a fine time trying to syncronize an ampexx mm1200 with a adams smith zeta 3. the mm1200 has a modified dsub connector that has the shorting pins and I can run the transport from this cable simply shorting the pins. but when I hook up the zeta via a cable, I dont get any action. here is the document I have been working from:
My question is, are which connections are required to get basic functions running. (Ill worry about sync after I get something to work) I assume the capstan connects, the play and stop lines and cmd ground.
Also does anyone know how the zeta functions specifically? Im assuming open collector where the mm1200 supplies the operating voltage to the zeta open collectors but Its been a long time since Ive dealt with syncing a tape machine. (I get +14volts as the inital mm1200 HI state on all the transport function pins, is this too much? the cable doesnt ask for a pull down resistor.)
I have the zeta remote and it runs the midi fine, master and slave enables work and I can run generator into master and it seems to be working. And I have the mm12000 constants loaded.
yours truly, "sync-less in Orlando".