Raymarine Autohelm ST3000, Руководство пользователя

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Chapter 3: Maintenance & Fault Finding 31
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SYMPTOM SOLUTION
The autopilot display is blank. No power – check the fuse/circuit breaker.
The displayed compass heading does
not agree with the boat’s compass. The compass has not been corrected for
deviation – carry out the deviation and
alignment procedures (see page 56).
Drive unit steers hard over as soon as
Auto is engaged Drive operating sense set incorrectly.
Refer to page 53.
Boat turns slowly and takes a long
time to come on to course. Rudder gain too low (see page 59).
Boat overshoots when turning on to a
new course. Rudder gain too high (see page 59).
The autopilot appears to be unstable
on Northerly headings in Northern
hemisphere (or Southerly headings in
Southern hemisphere). Northerly/Southerly heading correction
not set up (see page 65).
Display shows ‘CAL OFF’ when
entering calibration. Calibration access has been prevented
(see page 66).
The autopilot will not ‘talk’ to other
SeaTalk instruments. Cabling problem – make sure all the
cables are connected properly.
Position information not received. Navigator not transmitting the correct
position data.
The autopilot will not auto advance to
the next waypoint. No bearing to waypoint information
received from the navigator.
The autopilot will not display
Distance to Waypoint, Bearing to
Waypoint or Waypoint Number. Incorrect NMEA sentences transmitted
from position sensor. Refer to product
handbook for information about
information transmitted.
Drive slips under normal operating
conditions. Return the drive to your nearest service
representative.
81194_1.book Page 31 Wednesday, July 25, 2001 12:10 PM