Raymarine Autohelm ST6000, Service Manual

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Autohelm
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SeaTalk Service Manual 7
4. Functional Test
The Course Computer can be functionally checked by using the following procedure.
Pre checked equipment required;-
SeaTalk Control Unit (Z082)
Fluxgate Compass (Z105)
Pushpit Vane Transducer (Z087)
Rudder Reference Transducer (Z060)
Terminal PCB (Q006)
Terminal Block
Multimeter
Motor for Z083 (12V) (N002)
Motor for Z084 (24V) (N003)
Power Supply (min rating 20A)
SeaTalk Cable (D131)
Procedure:
a) Connect all units to course computer and terminal board PCB.
b) Position the rudder reference transducer arm diametrically opposite the cable
gland.
c) Connect 12V (Z083), 24V (Z084) electronic and heavy duty supplies (do not switch
on).
d) Start at Bench Test Stage 1. The procedure will determine if the course computer
is faulty or correct and in most cases will also identify the nature of the fault and
corrective action required. Some faults require further investigation and this is
covered in stage 2 and stage 3.