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8
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 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.
No contact is possible with
another station.
Frequency cannot be set
via the keypad.
FSK ITU channels cannot
be selected.
26
POSSIBLE CAUSE
• Power cable is improperly connected.
• Blown fuse.
• The [SPEAKER] switch is turned ON.
• Microphone is not connected.
• RF gain is set too deeply and several
segments of the S-meter appear.
• The squelch is closed.
• Antenna is not properly matched to
the operating frequency.
• RF gain is set too deeply.
• 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 re-
ceiving a strong signal.
• The [CLARITY] control is rotated too
far clockwise or counterclockwise.
• The transmit power is set low.
• Antenna tuner is improperly matched
to the operating frequency when man-
ual 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.
• Wrong transmit frequency is set.
• The [CE] key is not pushed ("s" does
not appear) before digit entry.
• 2182 kHz is selected with the
[2182KHz] switch.
• SITOR operation is set OFF 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 [MI-
CROPHONE] connector.
• Push [FUNC], then [RX] to reset the
RF gain. (RF GAIN 9 applies audio.)
• Push [SQL] switch to turn the squelch
OFF.
• Push [TUNE] to tune the connected
antenna tuner or select "automatic tun-
ing" using set mode when an optional
AT-130/E is connected.
• Push [FUNC], then [RX] to reset the
RF gain.
• Set to the proper condition for the con-
nected tuner.
• Push [MODE] to select the proper op-
erating mode.
• Push [AGC] to activate the AGC func-
tion.
• Push [NB] to turn the noise blanker
OFF.
• Adjust the [CLARITY] control to receive
proper audio output.
• Push [FUNC], then [TX] to reset the
transmit power. (RF-PWR 3 is maxi-
mum power.)
• Push [TUNE] to tune the connected
antenna tuner or select "automatic tun-
ing" using set mode.
• Push [MODE] to select J3E mode (or
H3E, R3E, etc.).
• Push [MODE] to select the proper op-
erating mode.
• Speak into the microphone naturally
and do not hold the microphone too
close to your mouth.
• Push [TX FREQ] to check and store
the correct transmit frequency.
• Push [CE] ("s" appears), then enter
the desired frequency.
• Push [2182KHz], then set the fre-
quency.
• Set "SITOR" to ON in set mode.
REF.
p. 19
p. 25
p. 2
p. 2
p. 10
p. 10
p. 13
p. 10
p. 13
p. 9
p. 10
p. 10
p. 10
p. 9
p. 9 or
p. 13
p. 9
p. 9
—
p. 8
p. 8
p. 6
p. 13
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