12.07.2015 Views

Autohelm Inboard Autopilots (ST6000 and ST7000 systems) Service ...

Autohelm Inboard Autopilots (ST6000 and ST7000 systems) Service ...

Autohelm Inboard Autopilots (ST6000 and ST7000 systems) Service ...

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<strong>Autohelm</strong>1. Type CR Interface Box PCB Circuit DescriptionThe course computer clutch signal activates RLY1 which in turn supplies current to abypass valve, if fitted. D1 suppresses any inductive spikes produced when the valveis switched <strong>and</strong> D2 protects against supply misconnection.Each solenoid drive is derived by connecting one side of the solenoid to a motorterminal <strong>and</strong> the other side to 0V.2SeaTalk <strong>Service</strong> Manual

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