Troubleshooting - Icom IC-M700PRO Instruction Manual

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
transceiver 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.
The 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 can
not be read.

TROUBLESHOOTING

POSSIBLE CAUSE
÷
Power cable is improperly connected.
The DC power cable fuse or circuitry
÷
fuse is blown.
÷ The [SPEAKER] switch is turned OFF.
÷ Microphone is not connected.
÷
The squelch is closed.
÷
Antenna is not properly matched to the
operating frequency.
Wrong tuner is selected in the set
÷
mode.
÷
The squelch is set to deep.
÷ Wrong operating mode 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.
The antenna tuner is improperly
÷
matched to the operating frequency
when manual tuning is selected.
÷ CW or FSK mode is selected for voice
transmission.
÷ The wrong operation mode is selected.
÷
Microphone is too close to your mouth.
The highest contrast is selected in the
÷
set mode.
SOLUTION
÷
Reconnect the cable securely.
Find and repair the cause of the
÷
problem and then replace the damaged
fuse with a new one.
÷ Turn ON the [SPEAKER] switch.
÷
Connect the microphone
[MICROPHONE] connector.
÷
Adjust the squelch to proper level or
push [SQL] to turn it OFF to receive
weak signals.
÷
Push [TUNE] to tune the using antenna
tuner or select "automatic tuning" in the
set mode when using an optional
AT-130.
Set the proper tuner for the connected
÷
tuner.
÷ Adjust the squelch to proper level.
÷ 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 using antenna
tuner, or select "automatic tuning" in
the 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.
÷
7
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