Troubleshooting - Furuno FM-3000 Operator's Manual

9. Troubleshooting

PROBLEM
No power comes ON.
No sound comes from
the speaker.
Sensitivity is low.
Transmitting is impossi-
ble, or high power can
not be selected.
Scan does not start.
No beep sounds.
Receive signal cannot
be understood.
Distress call cannot be
transmitted.
47
POSSIBLE CAUSE
• Bad connection to the power supply.
• Squelch level is too high.
• Volume level is too low.
• Speaker has been exposed to water.
• Internal speaker is turned OFF.
• The attenuator is activated.
• Some channels are for low power or re-
- ceive only.
• The output power is set to low.
• 'TAG' channel is not prog rammed.
• Beep tone is turned OFF.
• The squelch is open.
• Optional voice scrambler is turned OFF.
• Scramble code is not set correctly.
• MMSI (DSC self ID) code is not pro-
grammed.
• Check the connection to the transceiver.
• Set squelch to the threshold point.
• Set [VOL] to a suitable level.
• Drain water from the speaker.
• Turn the internal speaker ON in Set mode.
• Push [LO/DX] to turn the function OFF.
• Change channels.
er can
• Push [HI/LO] to select high power.
• Set the desired channels as 'TAG' chan-
nels.
• Turn the beep tone ON in Set mode.
• Set squelch to the threshold point.
• Turn the optional voice scrambler ON.
• Reset the scramble code.
• Program the MMSI (DSC self ID) code.
SOLUTION REF.
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p. 7
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pgs.
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