Simrad Robertson AP9 Mk3 - Fig. 3-14 Dual Analogue PCB - Simplified Diagram

Robertson AP9 MK3 Autopilot
3-14 20169223D
10kHz Feedback hi
SW1-1
1
0
+/-10V
Ext. inp.
IC4
RV4
1
2
3
4
5
6
101010
23 4
TB21
DC/DC
CONV.
+/-15V
IC2
AD.
CONV.
IC21
Vreg.
Vinp.
+VR
RV5
R2 R3
R4
RV3
S2
S1
1
0
1
0
+/-10V from
bus
R1R9
0-10V
OSC.
S21
1
0
+15V
IC3
4-20mA
generator
Q1-Q2-Q3
RV2
RV1
SW1SW1SW1
+VR
+
+
+
_
_
_
V
V
I
I
V inp.
V inp.
Galvanic
isolated
S22
1
0
Feedback lo
J2
2
Fig. 3-14
Dual Analogue PCB - Simplified diagram