Troubleshooting - RCA MRM400 Instruction Manual

52

TROUBLESHOOTING

Issues described in the following table are common operational issues. These types of errors are
generally due to improper connections, incorrect settings, or operator error due to incomplete
programming. These problems are usually not caused by unit failure. Before suspecting radio failure,
please refer to the relevant parts of this table and the solution instructions.
Question
Power did not respond.
Unable to connect
with GPS.
Can not scan.
MRM400 TM VHF Marine Two-Way Radio Instruction Manual
Possible Cause
1. The power cable is
not connected well.
2. The power cable
fuse is blown.
3. The voltage exceeds
17V or below 9V.
1. Connection error.
2. Different external
GPS format.
No set mark
channels (TAG).
Copyright © 2015 RCA Communications Systems
Solutions
1. Be sure the power cable is connected
correctly: red (+); black (-).
2. Find the cause of blown fuse, then
replace with a DC15A/32V fuse.
3. Be sure the adjust the
power supply is 13.8V.
1. Be sure the check the
connections are correct.
2. External GPS format should
be NMEA0183-2.0.
Set the channel you want to
scan to mark channels.
Ref.
page
10
11
1
11
11
23-26