Icom IC-R9500 [156/194] Troubleshooting

Icom IC-R9500 [156/194] Troubleshooting
Troubleshooting
The following chart is designed to help you correct
problems which are not equipment malfunctions.
If you are unable to locate the cause of a problem or
solve it through the use of this chart, contact you near-
est Icom Dealer or Service Center.
DD
Receiver power
DD
Receiving
PROBLEM POSSIBLE CAUSE SOLUTION REF.
No sounds come out from
the speaker.
Sensitivity is too low, and
only strong signals are
audible.
Received audio is unclear
or distorted.
The [ANT] switch does not
function
[AFC] cannot be turned
ON.
[AUTOTUNE](AFC) can-
not be turned ON.
[VSC] cannot be turned
ON.
[ANF] cannot be turned
ON.
[NOTCH1]/[NOTCH2]
cannot be turned ON.
The filter width cannot be
changed.
A synthesized voice is not
emitted when pushing
[SPCH].
No sounds come out or
output level is too low from
[S/P DIF OUT], [ACC],
[LINE OUT], [REC OUT].
•Volume level is too low.
The squelch is closed.
The RF gain is too decreases sensitivity.
The antenna is not connected properly.
The attenuator is activated.
•Adifferent antenna for HF band is selected.
•Wrong operating mode is selected.
PBT function is activated.
Noise blanker is turned ON when receiving a
strong signal.
Preamp is activated.
The noise reduction is activated and the [NR]
control is too far clockwise.
The selected frequency is above 30 MHz.
The operating mode is not set in FM or WFM
mode.
The operating mode is set in FM, WFM, FSK
or P25 mode.
The operating mode is set in CW, FSK or P25
mode.
The operating mode is set in CW, FSK or P25
mode.
The operating mode is set in FM, WFM or P25
mode.
The operating mode is set in WFM or P25
mode.
“Speech Level” in the level set mode is too low
“SPEECH Mix” in the others set mode is OFF.
Either the audio tone controls is too decreas-
es position
Rotate [AF] clockwise to obtain a suitable lis-
tening level.
•Turn [SQL] to 10 o’clock position to open the
squelch.
Rotate [RF GAIN] clockwise to obtain an
enough sensitivity.
Re-connect the antenna.
Push [ATT] several times to select “ATT OFF.”
Push [ANT] several times to select the correct
antenna for the HF band.
Select a suitable operating mode.
Push [PBT CLR] for 1 sec. to reset the function.
Push [NB] to turn the noise blanker OFF.
Push [P.AMP] once or twice to turn the function
OFF.
Set the [NR] control for maximum readability.
Select a frequency below 30 MHz.
Select FM or WFM mode to activate AFC.
Select AM, SSB or CW mode to activate AUTO-
TUNE.
Select FM, WFM, AM or SSB mode to activate
VSC.
Select FM, WFM, AM or SSB mode to activate
ANF.
Select AM, SSB, CW and FSK mode to activate
MN1/MN2.
Select FM, AM, SSB, CW and FSK mode.
•Set “Speech Level” to enough level in the set
mode.
Set “SPEECH Mix” to All or Operation in the set
mode.
Rotate [BASS] or [TREBLE] clockwise to obtain
an enough audio output.
p. 3-8
p. 3-8
p. 3-8
p. 5-9
p. 9-3
p. 3-7
p. 5-11
p. 5-15
p. 5-9
p. 5-16
pgs. 3-4,
9-3
pgs. 3-7,
5-17
pgs. 3-7,
5-17
pgs. 3-7,
8-3
pgs. 3-7,
5-16
pgs. 3-7,
5-16
pgs. 3-7,
5-12
p. 11-6
p. 11-11
p. 3-9
PROBLEM POSSIBLE CAUSE SOLUTION REF.
12-2
12
MAINTENANCE
Power does not come on
when the [POWER] switch
is pushed.
Power cable is improperly connected.
DC-DC power plug is improperly connected.
The internal power supply is turned OFF.
The fuse is blown.
Re-connect the AC power cable correctly.
Re-connect the DC-DC power plug correctly.
•Turn the internal power supply ON.
Check for the cause, then replace the fuse.
p. 3-2
p.12-8

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