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130 STACK OVERFLOW
• Indicates that the software has crashed. This may be due to
excessive electrical noise near the pilot computer. Remove any
sources of electrical noise then power OFF and back ON again to
clear the fault. If the problem persists, consult your local Cetrek
dealer or distributor.
131 700 CONTROL HEAD ALARM
• Indicates that data from the 700 control head is not present.
Check the cable and connections.
134 715-730 CONTROL HEAD ALARM
• Indicates that data from the 715 or 730 control head is not
present. Check the cable and connections.
165 COMPASS TIMEOUT
• The Pilot computer is not receiving heading information from the
compass. Check the wiring. If a 580 sensor is connected, check
PL8, pins 2, 3 and 4. Their voltage should be 2.5V ±1.5V, if they
are not, the 580 compass is faulty.
167 EXTERNAL DIGITAL COMPASS ALARM
• The repetition rate of the NMEA input to the 619 from the
compass is too slow (>200ms).
176 RATE GYRO ALARM
• Indicates that the data signal from the optional Rate Gyro is no
longer present (PL19 pin4 is at 5V). PL19 pin4 should be at a
nominal 2.5V when data is present.
192 GYRO STEPPER ALARM
• Indicates that the data signals from the Gyro stepper are faulty,
all ‘high’ or all ‘low’.
198 RUDDER FEEDBACK FAULT
• This may be caused by a fault in the Rudder Feedback Unit,
wiring, excessive travel on the Rudder Feedback Arm or the link J1
is set incorrectly.
Check that the Rudder Feedback Unit has been correctly installed.
200 MOTOR PHASING CHECK
• This indicates that the rudder setting data is wrong. Repeat the
rudder setting routine detailed in the control head User’s Guide.
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