Icom VHF MARINE TRANSCEIVER, IC-M502 Troubleshooting, Problem Possible Cause Solution

Models: IC-M502 VHF MARINE TRANSCEIVER

1 62
Download 62 pages 17.43 Kb
Page 44
Image 44

10 TROUBLESHOOTING

PROBLEM

POSSIBLE CAUSE

SOLUTION

REF.

No power comes ON.

• Bad connection to the power supply.

• Check the connection to the transceiver.

p. 35

 

 

 

 

No sound comes from

• Squelch level is too deep.

• Set squelch to the threshold point.

p. 8

the speaker.

• Volume level is too low.

• Set [VOL] to a suitable level.

p. 8

 

• Speaker has been exposed to water.

• Drain water from the speaker.

 

• Internal speaker is turned OFF.

• Turn the internal speaker ON in set mode.

p. 32

 

 

 

 

Sensitivity is low.

• The attenuator is activated.

• Push [LO/DX] to turn the function OFF.

p. 8

 

 

 

 

Transmitting is impossi-

• Some channels are for low power or re-

• Change channels.

pgs.

ble, or high power can-

ceive only.

 

6, 41

not be selected.

• The output power is set to low.

• Push [HI/LO] to select high power.

p. 8

 

 

 

 

Scan does not start.

• “TAG” channel is not programmed.

• Set the desired channels as “TAG” chan-

p. 13

 

 

nels.

 

 

 

 

 

No beep sounds.

• Beep tone is turned OFF.

• Turn the beep tone ON in set mode.

p. 32

 

• The squelch is open.

• Set squelch to the threshold point.

p. 8

 

 

 

 

Receive signal cannot

• Optional voice scrambler is turned OFF.

• Turn the optional voice scrambler ON.

p. 10

be understood.

• Scramble code is not set correctly.

• Reset the scramble code.

p. 33

 

 

 

 

Distress call cannot be

• MMSI (DSC self ID) code is not pro-

• Program the MMSI (DSC self ID) code.

p. 14

transmitted.

grammed.

 

 

 

 

 

 

40

Page 44
Image 44
Icom VHF MARINE TRANSCEIVER, IC-M502 instruction manual Troubleshooting, Problem Possible Cause Solution