Simrad AP27, AP26 manual Pcb

Simrad AP26 and AP27 Autopilots

Display readout	Probable fault	Recommended action
Rudder test failed	Following conditions	Refer to recommended actions for
	may exist:	the specific probable faults.
	a) Rudder feedback
	failure
	b) Autopilot
	Computer current
	overload
	c) Bypass/clutch
	overload
	Rudder moves in only	a) Check the connections
	one direction	b) Replace the Autopilot Computer
	a) Poor connection to	Power PCB
	one of the
	solenoids
	(continuously
	running pump)

b)Faulty Power PCB in autopilot computer

Rudder test not	a) Check connections
completed within 2	b) Replace the Main PCB
min.	c) Check the Power PCB for traces
a) Poor connections
	of burned transistors. – Change
to the drive unit	Power PCB.
b) Faulty Main PCB
in the Autopilot
Computer
c) Faulty Power PCB
in the Autopilot
Computer
Rudder moves at full	Replace Autopilot Computer Power
speed to one side.	PCB
a) Faulty Power PCB
in Autopilot
Computer

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