Actually i've been reading about -6.5v/+8.5v (1/0) process almost everywhere in the manuals, and precisely this is what pushed me to really check the KAS LSI's, when i realized my TR1-TR8 didnt follow those values (I have more -4v/+6v).
So, i checked the 26600 and 26700, and there again i couldnt find -6.5v/+8.5v values everywhere, instead
i got a few confusing values here and there:
YM26600
- Note terminals (Pins 7-19)= +2.3v(Note on) / -3.8v(Note off)
- U1-U5 (Pins 20-24)= +2.5v(Note on) / +8.4v(Note off)
- N1-N4 and B1-B3: Inconstant results...Probably need to read more about LSI functions first to get the logic
-All other values seem to be ok
YM26700
-CH1 (Pin 38)= 1v (stuck from lowest C to highest C)
-N1-N4 and B1-B3: Inconstant results...same as above
-All other values seem to be ok
KAS Board
TR1-TR8= -4.3v(Note on) / 5.5v(Note off)
TR9= -3.7v
At least, the top octave (i guess U5) is responding something ;)
Great if it inspires you something to start with! :-)
Thank for the help,
Luca