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Robertson AP9 MK3 Autopilot
Provisions have been made for offset and level adjustments of the
output signals by the SW1, containing four switches, and trim
potentiometers RV13-14 and 15. The adjustment procedure is
described under section Installation: Analogue signal, Rudder &
Thruster (page 5-50.).
SOLID STATE BOARD
This PCB performs the switching of the solenoids.
There are three versions:
All versions are made from the same PCB. Only the components
related to the solid state switch-"relays" are different. The differences
are listed on the detailed schematics. (Drw. N1-012815)
A simplified diagram is shown below.
Q1
+15V
SAFE
RELAY
S1
S2
S3
1 3/4 2
TB12
3-10
• D90: switching 19-40V DC, 3A
• D91: switching 110V DC, 1A
• D92: switching 110/220V AC, 1A
Q3
IC1
REG.
LD2
LD1
JUMPER
SWITCH
Q2
V
R
IC4-A
Q5
V
R
IC4-B
LIMIT SWITCH
Solid state PCB - Simplified diagram
LD5
V
R
OPTO
IC6-C
Q4
IC5
LD3
STBD
IC2
LD4
PORT
IC3
Fig. 3-11
Q6
OPTO
IC6-D
R21
H
L
F2
F1
4 5 6 TB14
SOL.
SUPPLY
20169223D
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