Simrad AP25 Instruction Manual page 93

Simrad AP25 Autopilot
Display readout
Compass data
missing
No connection
with IPS system
Failure active
Control Unit
ACXX high
temp.
Memory failure
ACXX
Com. failure with
ACXX
Low supply
voltage
92
Probable fault
No data from
selected compass.
Data missing or
erratic
Active control unit
goes silent.
Excessive
temperature inside
Autopilot
Computer
Wrong checksum
on memory
parameters or
variables.
Autopilot
Computer will use
default values.
Faulty Autopilot
Computer or poor
Robnet2 cable
connections from
the same.
Supply voltage less
than 10,8 Volts
Recommended action
1. If more that one compass is
connected to the system, refer to
the User Setup2/Source select menu
to select a different compass.
2. Make a source update if no
compass is available.
3. Check connections.
4. Replace compass PCB (Note: Do
not cut cables. There are screw
terminals inside).
Check connections to Volvo Autopilot
Interface. Also refer to the Volvo IPS
User Manual.
1. Press the STBY button on an
"Inactive" unit to reset.
2. Check/repair Robnet2 cable.
3. Replace the control unit PCB.
Switch off autopilot
Perform a "Master reset". Switch off
and on again. If the alarm is repeated,
replace Autopilot Computer PCB.
1. Check Robnet2 connectors and
cable.
2. Replace Autopilot Computer PCB.
1. Verify in the System Data Menu
2. Switch autopilot off, charge batteries
3. Check/repair battery charger
20222139A