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Simrad AP26 and AP27 Autopilots
122 20221586B
Display readout Probable fault Recommended action
Com. failure with
ACXX
Faulty Autopilot
Computer or poor
Robnet2 cable
connections from
the same.
1. Check Robnet2 connectors and
cable.
2. Replace Autopilot Computer Main
PCB.
Low supply
voltage
Mains voltage less
than 9 Volts
1. Verify in the System Data Menu
2. Switch autopilot off, charge
batteries
3. Check/repair battery charger
High supply
voltage
AC20/AC40 Mains
exceeds 44 V
AC10 Mains
exceeds 29 V
1. Verify in the System Data Menu
2. Switch the autopilot off
3. Check / repair battery charger