Revision 1.4.16a Page 239
10 Troubleshooting
If you notice unexpected operation of the Maretron DSM250, follow the troubleshooting
procedures in this section to remedy simple problems.
Symptom Troubleshooting Procedure
No activity on the display Check the connection to the NMEA 2000
and
connector and tighten if necessary
Ensure that power is supplied to the connected
NMEA 2000
®
cable
Expected data appears as a dash “-“
instead of a value
Use the N2KAnalyzer tool to verify whether the
device providing the data to the network is in
transmitting a valid data value.
Data fluctuates between two different
values
Two devices on the network are transmitting the
same data. Check the Instance Numbers on all
devices transmitting that data.
If these steps do not solve your problem, please contact Maretron Technical Support (refer to
Section12 for contact information).
Warning: There are no user-serviceable components inside the Maretron DSM250. Opening the
DSM250 will expose the sensitive electronic components to adverse environmental conditions that
may render the unit inoperative. Please do not open the DSM250, as this will automatically void the
warranty. If service is required, please return the unit to an authorized Maretron service location.
