Raymarine Autohelm ST6000, Service Manual

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SeaTalk Service Manual 19
6. Special functions.
6.1 Display of Software Version
It is possible to display the version number of both Course Computer and Control
Unit software installed in a particular system. This is achieved by pressing both the
+10 and -10 keys together for 2 seconds and releasing. The display will show the
Control Unit Version (65 followed by Issue Level) for 10 seconds, followed by Course
Computer Version (66 followed by Issue Level). The pilot must be in standby mode at
the time. Each version is displayed for 10 seconds before the pilot reverts to standby.
A software history for each product is shown in the relevant Service Section.
6.2 Permanent Watch Alarm Mode.
The ST7000 autopilot can be set up in a permanent watch alarm mode, as required
by the Sea Fish Industry Authority (S.F.l.A).
It must be stressed that the selection of this mode is permanent and can only be
reversed by returning the Course Computer to Nautech.
Permanent Watch Alarm is achieved by first entering the calibration menu. Once in
calibration, regardless of display message, press the Auto, Standby, and Track keys
together for 1 second before releasing. The display will now show ‘SELECT WATCH’.
The user now has 10 seconds to select permanent watch alarm mode by again
pressing Auto, Standby and Track together for 1 second. The display will then show
‘WATCH ON’ for 10 seconds before reverting back to ‘CAL’. A normal exit from
calibration mode must now be executed.
6.3 Display Test Mode.
All display segments on the control unit can be switched on by pressing the +10, -10,
Standby and Display keys together. This mode can only be accessed after the unit
has been powered up with the yellow SeaTalk data wire open circuit. (This is best
disconnected in the Course Computer Connector box (Bus 1 and Bus 2).)
6.4 LCD Contrast Ratio Adjustment.
In certain circumstances, it may be necessary to adjust the contrast ratio of the Z082
Control Unit LCD. This procedure is detailed in Section 4 of the ZO82 Control Unit
Section.