17
177
MAINTENANCE
D
4RANSCEIVERPOWER
02/",%-
0/33)",%#!53%
SOLUTION
REF.
Power does not turn ON
when the [POWER] switch is
pushed.
s4HEPOWERCABLEISIMPROPERLYCONNECTED
s!FUSEISBLOWN
s2ECONNECTTHE$#POWERCABLECORRECTLY
s#ORRECTTHECAUSETHENREPLACETHEFUSEWITH
an equivalent fuse.
( Fuses are installed in the DC power cable
and in the internal PA unit.)
p. 27
p. 180
D
4RANSMITANDRECEIVE
02/",%-
0/33)",%#!53%
SOLUTION
REF.
No sound from the speaker.
s4HEAUDIOVOLUMELEVELISTOOLOW
s4HESQUELCHISCLOSED
s4HETRANSCEIVERISINTRANSMIT
s2OTATE THE ;!&= CONTROL CLOCKWISE TO OBTAIN A
suitable listening level.
s2OTATETHE;2&31,=CONTROLTOOCLOCKPOSI
-
tion to open the squelch.
s0USH ;42!.3-)4= 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.
s4HEANTENNAISNOTCONNECTEDPROPERLY
s4HEANTENNAFORANOTHERBANDISSELECTED
s4HEANTENNAISNOTPROPERLYTUNED
s4HEATTENUATORISTURNED/.
s2ECONNECTTOTHEANTENNACONNECTOR
s3ELECT AN ANTENNA SUITABLE FOR THE OPERATING
frequency.
s(OLDDOWN;45.%2=FORSECONDTOMANUALLY
tune the antenna. (HF/50 MHz frequency band
only)
s0USH;0!-0!44=TOSELECTh!44/&&v
—
p. 158
p. 159
p. 71
Received audio is unclear or
distorted.
s4HEOPERATINGMODEISNOTMATCHED
s4HE0ASSBAND4UNINGFUNCTIONISTURNED/.
s.OISE "LANKER FUNCTIONS WHEN RECEIVING A
strong signal.
s0
reamplifier is turned ON.
s4HE .OISE 2EDUCTION FUNCTION IS TURNED /.
and the [NR] control is too far clockwise.
s3ELECTASUITABLEOPERATINGMODE
s(OLD DOWN ;0"4#,2= FOR SECOND TO RESET
the function.
s0USH;."=TOTURN/&&THEFUNCTION
s0USH ;0!-0!44= ONE OR MORE TIMES TO TURN
OFF the function.
s3ETTHE;.2=CONTROLFORMAXIMUMREADABILITY
p. 43
p. 75
p. 76
p. 71
p. 77
;!.4s-%4%2= DOES NOT
function
s4HE !NTENNA 3WITCH FUNCTION HAS NOT BEEN
turned ON.
s3ET THE !NTENNA 3WITCH FUNCTION TO h!UTOv OR
“Manual” in the Set mode.
p. 163
Transmitting is impossible.
s4HE OPERATING FREQUENCY IS OUTSIDE THE SE
-
lected ham band.
s3ET THE FREQUENCY TO BE WITHIN THE SELECTED
ham band.
p. 37
Output power is too low.
s4HE ;2& 0/7%2= CONTROL IS SET TOO FAR COUN
-
terclockwise
s4HE;-)#'!).=CONTROLISSETTOOFARCOUNTER
-
clockwise
s4HEANTENNAFORANOTHERBANDISSELECTED
s4HEANTENNAISNOTPROPERLYTUNED
s2OTATETHE;2&0/7%2=CONTROLCLOCKWISE
s3ETTHE;-)#'!).=CONTROLTOASUITABLEPOSI
-
tion.
s3ELECT AN ANTENNA SUITABLE FOR THE OPERATING
frequency.
s(OLDDOWN;45.%2=FORSECONDTOMANUALLY
tune the antenna.
p. 46
p. 46
p. 158
p. 159
No contact can be made with
another station.
s4HE2)4OR
∂
TX function is turned ON.
s4HE 3PLIT FUNCTION ANDOR $UPLEX FUNCTION ARE
turned ON.
s0USH;2)4=OR;
∂
TX] to turn OFF the function.
s0USH ;30,)4= ANDOR ;$50=& IN THE h-v
screen) to turn OFF the function.
pp. 69, 81
pp. 65, 82
Transmit signal is unclear or
distorted.
s4HE ;-)# '!).= CONTROL IS SET TOO FAR CLOCK
-
wise.
s3ETTHE;-)#'!).=CONTROLTOASUITABLEPOSI
-
tion.
p. 46
Repeater cannot be ac-
cessed.
s4HESPLITORDUPLEXFUNCTIONISNOTTURNED/.
s4HEPROGRAMMEDSUBAUDIBLETONEFREQUENCYIS
wrong.
s0USH ;30,)4= ANDOR ;$50=& IN THE h-v
screen) to turn ON the function.
s2ESETTHEFREQUENCY
pp. 65, 82
p. 65
AM cannot be selected.
s4HE-(ZFREQUENCYBANDISSELECTED
s
Select the HF/50/144/430 MHz frequency band. pp. 43, 61
Transmitting is impossible in
AM.
s4HE
144/430/1200 MHz frequency band is se-
lected.
s
Select the HF/50 MHz frequency band.
pp. 43, 46
N
4ROUBLESHOOTING
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.