Uniden UM415 English Owners Manual - Page 37

Maintenance And Troubleshooting

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Page 37 highlights

2. Connect the YELLOW wire of the accessory cable to the POSITIVE (+) wire of your chartplotter's NMEA data INPUT 3. Be certain all wire connections are secure and that all open wires are adequately covered. NOTE: To extend the life of the radio, use waterproof tape to seal electrical connections. Connecting to an External Speaker You can use an external speaker to monitor the radio from a different part of your boat or in a noisy environment. If you adjust the VOLUME-PWR knob on the radio, it will also adjust the external speaker volume. Your radio supports an external speaker with the following specifications:  Minimum impedance of 4 Ohms  Minimum power handling of 10 Watts 1. Connect the BLACK wire of the accessory cable to the GROUND WIRE of your external speaker. 2. Connect the RED wire of the accessory cable to the POSITIVE (+) WIRE of your external speaker. 3. Be certain all wire connections are secure and that all open wires are adequately covered. NOTE: To extend the life of the radio, use waterproof tape to seal electrical connections. Maintenance and Troubleshooting Due to its rugged design, your radio requires very little maintenance. However, it is a precision electronic instrument, so you should follow a few precautions:  If the antenna has been damaged, you should not transmit except in the case of an emergency. A defective antenna may cause damage to your radio.  You are responsible for continued FCC technical compliance of your radio.  You should arrange for periodic performance checks with your dealer. Problem The radio won't power on. The radio won't transmit. Things to Try Check the power connections. Check the fuse. Check the master battery switch and branch circuit that connect to the radio. Make sure you are not in weather or scan mode. Make sure you are not trying to transmit on a receiveonly channel (see the channels and frequency tables beginning on page 40). Make sure you are transmitting at the correct power level for this channel (see the channels and frequency tables beginning on page 40). Make sure the duration of each transmission is less than 5 minutes. English 37

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²µ
English
Connect the YELLOW wire of the accessory cable to the POSITIVE (+) wire of your
chartplotter’s NMEA data INPUT
Be certain all wire connections are secure and that all open wires are adequately
covered.
NOTE: To extend the life of the radio, use waterproof tape to seal electrical connections.
Connec°ng to an External Speaker
You can use an external speaker to monitor the radio from a different part of your boat or in
a noisy environment. If you adjust the
VOLUME-PWR
knob on the radio, it will also adjust the
external speaker volume.
Your radio supports an external speaker with the following specifications:
Minimum impedance of 4 Ohms
Minimum power handling of 10 Watts
Connect the BLACK wire of the accessory cable to the GROUND WIRE of your external
speaker.
Connect the RED wire of the accessory cable to the POSITIVE (+) WIRE of your external
speaker.
Be certain all wire connections are secure and that all open wires are adequately
covered.
NOTE: To extend the life of the radio, use waterproof tape to seal electrical connections.
MAINTENANCE AND TROUBLESHOOTING
Due to its rugged design, your radio requires very little maintenance. However, it is a
precision electronic instrument, so you should follow a few precautions:
If the antenna has been damaged, you should not transmit except in the case of an
emergency. A defective antenna may cause damage to your radio.
You are responsible for continued FCC technical compliance of your radio.
You should arrange for periodic performance checks with your dealer.
Problem
Things to Try
The radio won’t power on.
Check the power connections.
Check the fuse.
Check the master battery switch and branch circuit
that connect to the radio.
The radio won’t transmit.
Make sure you are not in weather or scan mode.
Make sure you are not trying to transmit on a receive-
only channel (see the channels and frequency tables
beginning on page 40).
Make sure you are transmitting at the correct power
level for this channel (see the channels and frequency
tables beginning on page 40).
Make sure the duration of each transmission is less
than 5 minutes.
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