Icom IC-7410 Instruction Manual

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MAINTENANCE
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D4RANSCEIVERPOWER
02/",%- 0/33)",%#!53% SOLUTION REF.
Power does not turn ON
when the [POWER] switch is
pushed.
s4HEPOWERCABLEISIMPROPERLYCONNECTED
s!FUSEISBLOWN
s2ECONNECTTHE$#POWERCABLECORRECTLY
s#ORRECTTHECAUSE THENREPLACETHE FUSE WITH
an equivalent fuse.
( Fuses are installed in the DC power cable
and in the internal PA unit.)
p. 19
p. 99
D4RANSMITANDRECEIVE
02/",%- 0/33)",%#!53% SOLUTION REF.
No sound from the speaker. s4HEAUDIOVOLUMELEVELISTOOLOW
s4HESQUELCHISCLOSED
s4HETRANSCEIVERISINTRANSMIT
s2OTATE THE ;!&= CONTROL CLOCKWISE TO OBTAIN A
suitable listening level.
s2OTATETHE;2&31,=CONTROLTOOCLOCKPO-
sition to open the squelch.
s0USH ;42!.3-)4= TO RECEIVE OR CHECK THE
SEND line of an external unit, if connected.
p. 31
p. 32
p. 34
Sensitivity is too low, and only
strong signals are audible.
s4HEANTENNAISNOTCONNECTEDPROPERLY
s4HEANTENNAFORANOTHERBANDISSELECTED
s4HEANTENNAISNOTPROPERLYTUNED
s4HEATTENUATORISTURNED/.
s2ECONNECTTOTHEANTENNACONNECTOR
s3ELECT AN ANTENNA SUITABLE FOR THE OPERATING
frequency.
s(OLDDOWN;45.%2=FORSECONDTOMANUALLY
tune the antenna.
s0USH;0!-0!44=TOTURN/&&THEATTENUATOR
—
p. 82
p. 83
p. 55
Received audio is unclear or
distorted.
s4HEOPERATINGMODEISNOTMATCHED
s4HE0ASSBAND4UNINGFUNCTIONISTURNED/.
s4HE.OISE"LANKERFUNCTIONISTURNED/.WHEN
receiving a strong signal.
s0REAMPLIlERISTURNED/.
s4HE .OISE 2EDUCTION FUNCTION IS TURNED /.
and the [NR] control is too far clockwise.
s3ELECTASUITABLEOPERATINGMODE
s(OLD DOWN ;0"4#,2= FOR  SECOND TO RESET
the function.
s0USH;."=TOTURN/&&THEFUNCTION
s0USH;0!-0!44=ONCEORTWICETOTURN/&&
the function.
s3ETTHE;.2=CONTROLFORMAXIMUMREADABILITY
p. 31
p. 59
p. 60
p. 55
p. 61
;!.4s-%4%2= DOES NOT FUNC-
tion
s4HE!NTENNA3WITCHFUNCTIONISSETTOh/&&v s3ET THE !NTENNA 3WITCH FUNCTION TO h!UTOv OR
“Manual” in the Set mode.
p. 87
Transmitting is impossible. s4HE OPERATING FREQUENCY IS OUTSIDE THE SE-
lected ham band.
s3ET THE FREQUENCY TO BE WITHIN THE SELECTED
ham band.
p. 26
Output power is too low. s4HE ;2& 072= CONTROL IS SET TOO FARCOUNTER-
clockwise.
s4HE ;-)#= CONTROL IS SET TOO FARCOUNTERCLOCK-
wise.
s4HEANTENNAFORANOTHERBANDISSELECTED
s4HEANTENNAISNOTPROPERLYTUNED
s2OTATETHE;2&072=CONTROLCLOCKWISE
s3ETTHE;-)#=CONTROLTOASUITABLEPOSITION
s3ELECT AN ANTENNA SUITABLE FOR THE OPERATING
frequency.
s(OLDDOWN;45.%2=FORSECONDTOMANUALLY
tune the antenna.
p. 34
p. 34
p. 82
p. 83
No contact can be made with
another station.
s4HE2)4OR∂TX function is turned ON.
s4HE3PLITFUNCTIONISTURNED/.
s0USH;2)4=OR;∂TX] to turn OFF the function.
s0USH;30,)4=TOTURN/&&THEFUNCTION
pp. 53, 65
p. 66
Transmit signal is unclear or
distorted.
s4HE;-)#=CONTROLISSETTOOFARCLOCKWISE s3ETTHE;-)#=CONTROLTOASUITABLEPOSITION p. 34
Repeater cannot be accessed. s4HE3PLITFUNCTIONISNOTTURNED/.
s4HE PROGRAMMED SUBAUDIBLE TONE FREQUENCY
is wrong.
s0USH;30,)4=TOTURN/.THEFUNCTION
s2ESETTHEFREQUENCYUSINGTHE3ETMODE
p. 66
p. 52
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.

Icom IC-7410 Specifications

General

Brand	Icom
Model	IC-7410
Category	Transceiver
Language	English