TMQ AP4 - Page 61

TMQ AP4 Autopilot (AP4S10) 61 of 62 Version 4.96 9/10/2017
AP4 drives rudder hard over when switched to AUTO
Possible fault
 Rudder feedback cable disconnected from AP4
 Defective rudder feedback cable
 Disconnected rudder feedback linkage
 Broken rudder feedback linkage or arm
 Rudder feedback unit failure
AP4 drives rudder in one direction only
Possible fault
 Rudder limit switch not set correctly
 Partial drive circuit failure (FET)
Boat does not follow in GPS waypoint steering (alarm sounding)
Possible fault
 Route not selected in GPS
 GPS interface cable not connected to AP4
 Incorrect data output from GPS
 No valid data fix by GPS
 Faulty interface cable
 Reversed wires on interface cable
 GPS mode not selected on AP4
 Failure of isolator IC1 in AP4
Active Remote does not function correctly with AP4
Possible fault
 Active remote not connected to AP4
 Special mode r-2 not selected
 Active remote failure