Troubleshooting - Icom M700PROE Instruction Manual

7

TROUBLESHOOTING

What appears to be equipment malfunction may not be
damaging or difficult to solve. Check the following chart
before making any adjustments or sending the trans-
ceiver to an Icom Service Center.
PROBLEM
Power does not come on
when [POWER] is
pushed.
No sound comes from the
speaker.
Sensitivity is too low and
only strong signals are
audible.
Received audio is unclear
or distorted.
Your signal does not
reach as far away as
usual.
Transmit signal is unclear
or distorted.
All indicators appear and
the channel number
cannot be read.
22
POSSIBLE CAUSE
• Power cable is improperly connected.
• Blown fuse.
• The [SPEAKER] switch is turned on.
• Microphone is not connected.
• The squelch is closed.
• Antenna is not properly matched to the
operating frequency.
• Wrong tuner condition is selected in set
mode.
• Wrong type of emission is selected.
• AGC is deactivated while receiving a
strong signal.
• Noise blanker is turned on when
receiving a strong signal.
• The [CLARITY] control is rotated too
far clockwise or counterclockwise.
• Antenna tuner is improperly matched to
the operating frequency when manual
tuning is selected.
• CW or FSK mode is selected for voice
transmission.
• Wrong type of emission is selected.
• Microphone is too close to your mouth.
• The highest contrast is selected in set
mode.
SOLUTION
• Reconnect the cable securely.
• Check for cause, then replace the fuse
with a spare one.
• Turn off the [SPEAKER] switch.
• Connect the microphone to the
[MICROPHONE] connector.
• Push the [SQL] switch to turn the
squelch off.
• Push [TUNE] to tune the connected
antenna tuner or select "automatic
tuning" using set mode when an
optional AT-130 is connected.
• Set the proper condition for the
connected tuner.
• Push [MODE] to select the proper
operating mode.
• Push [AGC] to activate the AGC
function.
• Push [NB] to turn the noise blanker off.
• Adjust the [CLARITY] control to receive
proper audio output.
• Push [TUNE] to tune the connected
antenna tuner or select "automatic
tuning" using set mode.
• Push [MODE] to select USB mode (or
AM, R3E, etc.).
• Push [MODE] to select the proper
operating mode.
• Speak into the microphone naturally
and do not hold the microphone too
close to your mouth.
• Set to the proper display contrast.
REF.
p. 18
p. 21
p. 2
p. 2
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pgs.
2, 11
p. 11
p. 3
p. 9
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pgs.
2, 11
p. 3
p. 3
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p. 13