Navman W100, User Manual, Page: 13 / 72

11 NAVMAN W100 User Manual
Troubleshooting Chart
No display:
Check DC power connections and DC polarity with voltmeter. Voltage must
be between 10.7 and 16.6 volts.
Faulty wind speed or wind direction indication:
1. Possible defective Masthead Cable
2. Possible defective Masthead Assembly
3. Possible defective instrument
Remove the Masthead Assembly from the masthead and connect it directly
to the instrument red moulded cable. If the indication is normal, the Masthead
Cable is defective. If the problem persists, contact your supplier for service.
NOTE: The instrument and Masthead Assembly may be connected directly
for linearisation of the repaired or new equipment prior to installation.
No wind speed or wind direction indication
Check the DC power source applied to the NAVMAN W100.
Simulation Mode
At power up, if all the segments display for 5 seconds then the instrument
is in simulation mode.