Gyro Interface Board
Synchro & Step
Gyro
Magnetic
Compass
Rudder
Commands
Plug
Interface Board
20169223D
AP9 M K3
AUTOPILOT
R
ALARM
RESET
NAV
HELMS-
AUTO
COMPASS
ILLUM
IN FO
IN CREASE
MAN
SELECT
COUNTER
RU DD ER
WEATHER
DECREASE
PORT
OFF
RUDDER
MICROPR.
PROM
Course Change Knob
Fig. 3-3
AP9 MK3 Electronic boards
Design and theory of operation
Key Board
STBD
AUTOPILOT
Display Board
Front Board
3-3