Instruction manual

Simrad AP35 Autopilot
92 22083083K
Display readout Probable fault Recommended action
Rudder test failed
(cont’d)
Rudder test not completed
within 2 min.
a) Poor connections to
drive unit
b) Faulty Main PCB in
junction unit
c) Faulty Power PCB in
junction unit
a) Check connections
b) Replace PCB
c) Check PCB for traces of burnt
transistors. – Change PCB.
Rudder moves at full speed
to one side.
a) Faulty Power PCB in
junction unit
Replace PCB
Compass data missing No data from selected
compass.
1. If more that one compass is
connected to the system, refer to the
USER SETUP menu to select a
different compass.
2. Check connections/Interface menu.
3. Replace compass PCB or interface
PCB (Note: Do not cut cables. The
PCB contains screw terminals).
Comm. failure active
Control
Active control unit
(including FU35) goes
silent.
1. Press STBY button on "Inactive"
unit to reset.
2. Check/repair Robnet cable.
3. Replace control unit/FU50 PCB.
J3XX current overload Drive unit shut down due to
excessive load or short
circuit.
1. Check Drive unit/Drive unit
installation/Manual steering/
Rudder
2. Disconnect Drive unit. If fault is
still present, replace junction unit
Power PCB.
Low 15 volt Internal 15 Volt supply in
Junction Unit below limit.
1. Replace junction unit Main PCB
2. Replace junction unit Power PCB
if Mains voltage is 12V.