10 TROUBLESHOOTING

PROBLEM

POSSIBLE CAUSE

SOLUTION

REF.

The transceiver does

• Bad connection to the power supply.

• Check the connection to the transceiver.

p. 58

not turn ON.

 

 

 

 

 

 

 

No sound from speaker.

• Squelch level is too high.

• Set [SQL] to the threshold point.

p. 8

 

• Volume level is too low.

• Set [VOL] to a suitable level.

p. 8

 

• Speaker has been exposed to water.

• Drain water from the speaker.

 

 

 

 

Transmitting is impossi-

• Some channels are programmed for low

• Change channels.

pgs. 6,

ble, or high power can

power or receive only in regulations.

 

7, 69, 70

not be selected.

• The output power is set to low.

• Push [H/L] to select high power.

p. 8

 

 

 

 

Scan does not start.

• TAG channel is not programmed.

• Set the desired channels as TAG channels.

p. 13

 

 

 

 

No beeps.

• Beep tones are turned OFF.

• Turn the beep tone ON in Set mode.

p. 56

 

• The squelch is open.

• Set [SQL] to the threshold point.

p. 8

 

 

 

 

Distress call cannot be

• MMSI (DSC self ID) code is not pro-

• Program the MMSI (DSC self ID) code.

p. 15

transmitted.

grammed.

 

 

 

 

 

 

66

Page 72
Image 72
Icom IC-M505 instruction manual Troubleshooting, Problem Possible Cause Solution