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10-4
BASIC MANUAL
MAINTENANCE
10
10
Problem
Possible Cause
Solution
REF.
No power output or the output
power is too low.
The microphone is bad, or the
[MIC] jack is shorted or defective.
Test the microphone and check
the [MIC] jack.
The antenna SWR is more than
3:1.
Adjust the antenna for an SWR of
less than 3:1.
AM
The antenna is not properly
tuned.
Connect an external antenna
tuner, and tune the antenna.
–
The transmit signal is unclear
or distorted in the SSB mode.
The transceiver’s microphone
gain is too high.
Adjust the MIC GAIN level so
that the meter reading swings
between 30 and 50% of the ALC
scale.
The received audio in the SSB
mode is unclear or distorted.
The incorrect sideband is
selected.
Toggle between USB and LSB.
The PBT function is activated.
Hold down
to clear the
settings.
Cannot contact with another
station, even if receiving and
transmitting seem normal.
The Split function is ON, and the
transmit and receive frequencies
are different.
(
is displayed.)
Touch [SPLIT] in the FUNCTION
screen to turn OFF the Split
function.
The RIT function or the
∂
TX
function is ON, and the transmit
and receive frequencies are
different.
(“RIT” or “
∂
TX” is displayed.)
Push
to turn OFF the
function.
There is no response after
transmitting.
The Duplex function is ON,
and the transmit and receive
frequencies are different.
Touch [DUP] several times in the
FUNCTION screen to turn OFF
the Duplex function.
AM
The operating frequency does
not change when rotating
.
The Dial Lock function is ON.
Hold down
to turn OFF the
Dial Lock function.
In the VFO mode, the
operating frequency is not
properly changed by rotating
.
The function assigned to
is wrong.
Push
to turn OFF the
RIT or
∂
TX function.
Hold down
to assign the
kHz Tuning Control or Select the
Memory Channel function.
The display turns OFF.
The Screen Saver function is ON.
( The POWER indicator blinks
green.)
Operate something (push key,
and so on) to reset the screen
saver startup time.
The backlight brightness
automatically changes.
The Auto Adjust function is ON.
Touch [Auto Adjust] in the “LCD
Backlight” screen to turn OFF the
Auto Adjust function.
(“Auto Adjusting” disappears.)
A Programmed scan does not
start.
The same frequencies have been
set in the scan edges (00 ~ 24).
Set different frequencies in the
scan edges.
AM
A Memory scan does not start. No, or only 1 memory channel
is set.
Set at least 2 memory channels.
AM
A Select memory scan does
not start.
No, or only 1 memory channel is
assigned as a Select channel.
Assign at least 2 memory
channels as Select channels for
the scan.
AM
Troubleshooting
Summary of Contents for IC-705
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