Troubleshooting Chart - Navman D100 Handbuch

Troubleshooting Chart

No display:
Check DC power connections and DC polarity with voltmeter. Voltage
must be between 10.7 and 16.6 volts.
No depth reading (--) at all depths:
1. Check transducer for growth or multiple coats of paint.
2. Check the transducer cable for cuts and sharp bends.
3. Substitute the transducer with a known good transducer hold it
sides
10 NAVMAN D100 User Manual