Troubleshooting - Navman G-PILOT 3380 Operation Manual

9

Troubleshooting

This troubleshooting guide assumes that you
have read and understood this manual.
It is possible in many cases to solve difficulties
without having to send the unit back to the
manufacturer for repair. Please follow this
troubleshooting section before contacting the
nearest Navman dealer.
There are no user serviceable parts. Specialized
methods and testing equipment are required
to ensure that the unit is reassembled correctly.
Repairs to the unit must only be carried out
by a service centre approved by Navman NZ
Limited.
Users who service the unit themselves will void
the warranty. More information can be found
on our Website: www.navman.com.
1 Unit will not turn on:
a Fuse blown or circuit breaker tripped.
b Battery voltage is outside the range 10.5 to
30.5 V DC.
c Power/data cable damaged.
2 G-PILOT makes too frequent course
corrections:
The value of response is too low (see
section 8-1).
3 When sailing a straight course, the boat
drifts from side to side of the course:
a The boat should drift from side to side of
the course when the G-PILOT steering is
optimized.
b Change to a profile suitable for boat speed
and sea conditions (see section 8-2).
c If the boat drifts too far from the course,
adjust response, ratio, counter rudder gain,
GPS gain (if G-PILOT is in GPS mode) or
wind gain (if G-PILOT is in wind mode)
(see section 8-1).
46
4 When sailing a straight course, the boat
drifts off course:
a Change to a profile suitable for boat speed
and sea conditions (see section 8-2).
b Adjust response, ratio, counter rudder gain,
GPS gain (if G-PILOT is in GPS mode) or
wind gain (if G-PILOT is in wind mode)
(see section 8-1).
5 When making a large course change, boat
does not follow the expected course:
a Change to a profile suitable for boat speed
and sea conditions (see section 8-2).
b Check turn rate is not too low
(see section 6-3).
c Adjust counter rudder gain
(see section 8-1).
6 Boat turns too sharply:
Reduce turn rate (see section 6-3).
7 The word SIMULATE flashes on the
display, values displayed are unexpected:
Unit is in simulate mode (see section 3-14).
8 The display fogs:
a Moist air has entered the breathing tube at
the rear of the unit. Air the boat or run unit
with backlight fully on.
b Water has entered the breathing tube.
Return unit for service.
NAVMAN
G-PILOT 3380 Operation Manual