17
177
MAINTENANCE
D Transceiver power
PROBLEM POSSIBLE CAUSE SOLUTION REF.
Power does not turn ON
when the [POWER] switch is
pushed.
•Thepowercableisimproperlyconnected.
•Afuseisblown.
•Re-connecttheDCpowercablecorrectly.
•Correctthecause,then replace thefusewith
an equivalent fuse.
( Fuses are installed in the DC power cable
and in the internal PA unit.)
p. 27
p. 180
D Transmit and receive
PROBLEM POSSIBLE CAUSE SOLUTION REF.
No sound from the speaker. •Theaudiovolumelevelistoolow.
•Thesquelchisclosed.
•Thetransceiverisintransmit.
•Rotate the [AF] control clockwise to obtain a
suitable listening level.
•Rotatethe[RF/SQL]controlto11o’clockposi-
tion to open the squelch.
•Push [TRANSMIT] to receive or check the
SEND line of an external unit, if connected.
p. 45
p. 44
p. 46
Sensitivity is too low, and
only strong signals are au-
dible.
•Theantennaisnotconnectedproperly.
•Theantennaforanotherbandisselected.
•Theantennaisnotproperlytuned.
•TheattenuatoristurnedON.
•Re-connecttotheantennaconnector.
•Select an antenna suitable for the operating
frequency.
•Holddown[TUNER]for1secondtomanually
tune the antenna. (HF/50 MHz frequency band
only)
•Push[P.AMP/ATT]toselect“ATTOFF.”
—
p. 158
p. 159
p. 71
Received audio is unclear or
distorted.
•Theoperatingmodeisnotmatched.
•ThePassbandTuningfunctionisturnedON.
•Noise Blanker functions when receiving a
strong signal.
•Preamplifier is turned ON.
•The Noise Reduction function is turned ON
and the [NR] control is too far clockwise.
•Selectasuitableoperatingmode.
•Hold down [PBT-CLR] for 1 second to reset
the function.
•Push[NB]toturnOFFthefunction.
•Push [P.AMP/ATT] one or more times to turn
OFF the function.
•Setthe[NR]controlformaximumreadability.
p. 43
p. 75
p. 76
p. 71
p. 77
[ANT•METER] does not
function
•The Antenna Switch function has not been
turned ON.
•Set the Antenna Switch function to “Auto” or
“Manual” in the Set mode.
p. 163
Transmitting is impossible. •The operating frequency is outside the se-
lected ham band.
•Set the frequency to be within the selected
ham band.
p. 37
Output power is too low. •The [RF POWER] control is set too far coun-
terclockwise
•The[MICGAIN]controlissettoofarcounter-
clockwise
•Theantennaforanotherbandisselected.
•Theantennaisnotproperlytuned.
•Rotatethe[RFPOWER]controlclockwise.
•Setthe[MICGAIN]controltoasuitableposi-
tion.
•Select an antenna suitable for the operating
frequency.
•Holddown[TUNER]for1secondtomanually
tune the antenna.
p. 46
p. 46
p. 158
p. 159
No contact can be made with
another station.
•TheRITor∂TX function is turned ON.
•The Split function and/or Duplex function are
turned ON.
•Push[RIT]or[∂TX] to turn OFF the function.
•Push [SPLIT] and/or [DUP](F-2) (in the “M1”
screen) to turn OFF the function.
pp. 69, 81
pp. 65, 82
Transmit signal is unclear or
distorted.
•The [MIC GAIN] control is set too far clock-
wise.
•Setthe[MICGAIN]controltoasuitableposi-
tion.
p. 46
Repeater cannot be ac-
cessed.
•ThesplitorduplexfunctionisnotturnedON.
•Theprogrammedsubaudibletonefrequencyis
wrong.
•Push [SPLIT] and/or [DUP](F-2) (in the “M1”
screen) to turn ON the function.
•Resetthefrequency.
pp. 65, 82
p. 65
AM cannot be selected. •The1200MHzfrequencybandisselected. •
Select the HF/50/144/430 MHz frequency band.
pp. 43, 61
Transmitting is impossible in
AM.
•The
144/430/
1200 MHz frequency band is se-
lected.
•
Select the HF/50 MHz frequency band.
pp. 43, 46
■ 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 your
nearest Icom Dealer or Service Center.
To Next Page
Loading...
Need help?
General
