Uniden UM380 사용자 설명서

34 English

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. 

#

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: 

 x

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. 

 x

You are responsible for continued FCC technical compliance of your radio. 

 x

You should arrange for periodic performance checks with your dealer. 

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 37).

Make sure you are transmitting at the correct power 

level for this channel (see the channels and frequency 

tables beginning on page 37).

Make sure the duration of each transmission is less 

than 5 minutes.

Noise comes out of the speaker 

all the time

Adjust the squelch level; it is probably too low.

I can’t hear anything (no 

volume) from the speaker.

Adjust the squelch level; it is probably too high.

I can transmit, but no one can 

hear me.

Check your UIC channel settings (see Setting the UIC 

channel mode (USA/CAN/INT) on page 6).

The display flashes, and I don’t 

know why.

The display will flash if the radio is in a watch mode or 

in scan mode. Try turning off scanning, Weather Alert 

Watch, or Triple/Dual Watch (see page 6.)

I can’t read the display.

Adjust the contrast and backlight brightness level (see 

page 16)

The display is too bright at 

night.

Adjust the backlight brightness level.

Turn off the radio; hold CALL-MENU button and turn it 

back on (see page 16)

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4/13/2011   11:25:18 AM