Raymarine Autohelm ST6000, Service Manual

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Autohelm
Autohelm Autohelm
Autohelm
SeaTalk Service Manual 1
2. Technical Information
Contents
Page
1. Circuit Description (Course Computer PCB)
2
1.1 Power Supplies 2
1 .2 Microprocessor and Program Memory 2
1.3 Analogue to Digital Converter 2
1.4 Clutch Drive 3
1.5 SeaTalk Bus Transmit and Receive 3
1.6 Fluxgate Drive 3
1.7E2prom 3
1 .8 Supply Voltage Monitor 3
1.9 Alarm Drive 3
2. Circuit Description (Power Amplifier PCB) 3
2.1 Voltage Regulator (24V) Systems only) 3
2.2 Reverse Connection Protection 3
2.3 Bridge Amplifier 4
Illustrations
Fig. 1. Course Computer PCB Circuit Diagram 5
Fig. 2. Course Computer PCB Assembly/Parts List 7
Fig. 3. Power Amplifier PCB Circuit Diagram (12V and 24V) 9
Fig. 4. Power Amplifier PCB Assembly/Parts List (Z083 1 2V) 11
Fig. 5. Power Amplifier PCB Assembly/Parts List (Z084 24V) 13
Fig. 6. Terminal PCB Circuit Diagram 15
Fig. 7. Terminal PCB Assembly 17