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C hapter 9: F ault F inding
Chapter 9: Fault Finding
The autopilot display is blank
The autopilot display shows C ODE LOC K at power on
The displayed compass heading does not agree with the
ships compass
Vessel turns slowly and takes a long time to come on to
course
Vessel overshoots when turning on to a new course
The autopilot appears to be unstable in Track mode, or track-
holding is slow
The autopilot appears to be unstable on Northerly headings
in the Northern hemisphere and Southerly headings in the
Southern hemisphere
Display shows C AL LOC K when entering calibration
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