Troubleshooting - Icom IC-M220 Instruction Manual

The transceiver does not turn ON.
z Bad connection to the power supply.
→ Check the connection to the transceiver and power supply. (p. 43)
z The fuse is blown.
→ Repair the problem, and then replace the fuse. (p. 45)
Little or no sound comes from the speaker.
z Squelch level is set too high.
→ Set the squelch to the threshold point. (p. 9)
z Volume level is set too low.
→ Set the volume level to a suitable level. (p. 9)
You cannot transmit with high power.
z Some channels are set for low power or receive only by regulations.
→ Change channels. (p. 7)
z The output power is set to low.
→ Push to select high power. (p. 5)
HI/LO
Scan does not start.
z More than 2 favorite channels are not set.
→ Set at least 2 favorite channels. (p. 13)
No beep sounds.
z The Key Beep function is OFF.
→ Turn ON the function. (p. 38)
Individual or Group ID cannot be set.
z The entered ID code is incorrect. The first digit must be set to between '1' and '9' for an
Individual ID.
→ Enter a correct ID code. (p. 15)
"??" blinks instead of the position and time.
z 23.5 hours have passed since you manually entered the position.
z The GPS position is invalid.
→ Enter the position and time. (p. 16)
"NO POS" and "NO TIME" are displayed instead of the position and time.
z The GPS signal is not correctly received.
→ Check the transceiver is located where it has a clear view to receive signal from
satellites. (p. 46)
→ Check the cable connection to NMEA In/Out leads. (p. 44)
z The position and time have not been manually entered.
→ Enter the position and time. (p. 16)

TROUBLESHOOTING

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