Contents
Contents
1.1 PCB Changes ................................................................................................. 1
1.3 PCB Details .................................................................................................... 4
PCB Layout .................................................................................................. 6
2.1 Functional test ................................................................................................. 9
2.2 Magnetic deviation .......................................................................................... 9
Disassembly ............................................................................................... 14
Assembly ................................................................................................... 16
Tools required: ............................................................................................ 18
Motor drive box ........................................................................................... 18
Procedure ................................................................................................. 19
Circuit Diagram..................................................................................... 5
PCB Component list ............................................................................. 7
Belt removal ....................................................................................... 14
Motor removal .................................................................................... 14
Gearbox removal ................................................................................ 15
Gearbox assembly.............................................................................. 16
Motor assembly .................................................................................. 16
Drive ring closure ................................................................................ 17
ST4000+ Autopilots Service Manual 83115-1