AUTOHELM ST7000 / ST6000 TYPE CR Interface Box – Z085 – 3015-038B PERFECT! RARE.
Works perfectly, fully tested with guarantee.
All type CR systems are driven with a standard course computer and terminal board which interfaces to a type CR interface box (Z085).
The same interface box is used for both 12V and 24V systems and can be functionally tested by using the following procedure.
Type CR Interface Box PCB Circuit Description:
The course computer clutch signal activates RLY1 which in turn supplies current to a bypass valve, if fitted. D1 suppresses any inductive spikes produced when the valve is switched and D2 protects against supply misconnection.
Each solenoid drive is derived by connecting one side of the solenoid to a motor terminal and the other side to 0V
Type CR Parts List PCB detail 3015-038
Diode MR751 D1 02031
Diode (Fast Recovery) MR850 D1 02036
PCB Connector 07-212
Relay T9030A RL1 15057
Raymarine / Raytheon