Ok, so I probed all the IC's actually. First, both BBD's pass zero signal on pins 7 and 8. Quite as a church mouse there. Of the 12 IC's the following are the only pins to pass signal.
IC 1 - pins 2 & 7
IC 2 - pin 5 barely audible but still there
IC 11 - pins 4 & 12
IC 12 - pins 2 & 6.
All other IC's and pins pass no signal or really any noise at all for that matter. No static etc...
Voltage readings:
IC 1: IC 5: IC 7: IC 12:
1: 0 3.77-5.09 .6 - 6.0 ( quite the swing) 4.6
2: 4.6 .9-1.64 3.28 4.6
3: 4.6 1.5 2.1-4.5 4.6
4: 0 0 0 0
5: 4.6 3.31 3.31 4.6
6: 4.6 3.31 3.31 4.6
7: 4.6 2.2-4.5 2.5-4.1 4.6
8: 9.21 6.24 6.62 9.21
IC 1 - pins 2 & 7
IC 2 - pin 5 barely audible but still there
IC 11 - pins 4 & 12
IC 12 - pins 2 & 6.
All other IC's and pins pass no signal or really any noise at all for that matter. No static etc...
Voltage readings:
IC 1: IC 5: IC 7: IC 12:
1: 0 3.77-5.09 .6 - 6.0 ( quite the swing) 4.6
2: 4.6 .9-1.64 3.28 4.6
3: 4.6 1.5 2.1-4.5 4.6
4: 0 0 0 0
5: 4.6 3.31 3.31 4.6
6: 4.6 3.31 3.31 4.6
7: 4.6 2.2-4.5 2.5-4.1 4.6
8: 9.21 6.24 6.62 9.21