10
MAINTENANCE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
10-3
Troubleshooting (Continued)
PROBLEM
POSSIBLE CAUSE
SOLUTION
REF.
The transceiver
automatically switches to
transmit while receiving.
The VOX function is ON.
Turn OFF the VOX function in the Multi-
function menu.
The VOX gain is set too high.
Adjust the VOX gain.
Cannot contact with
another station, even if
receiving and transmitting
seem normal.
The Split function is activated.
( The transmit and receive frequencies
are different.)
Push
SPLIT
to turn OFF the Split
function.
The RIT function or the
∂
TX function
is
ON, and a different receive or transmit
frequency is set.
Push
RIT
or
TX
to turn OFF the
function.
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.
Rotate
TWIN PBT
CLR
to clear the settings. p. 4-3
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 desktop microphone gain is too high.
The operating frequency
is not properly changed by
rotating
MAIN DIAL
.
The Dial Lock function is activated.
Hold down
SPEECH
to turn the Dial
Lock function OFF.
Programmed scan does
not start.
The same frequencies have been set in
scan edge memory channels P1 and P2.
Set different frequencies in scan edge
memory channels P1 and P2.
–
Memory scan does not
start.
No, or only 1 memory channel is set.
Set at least 2 memory channels.
Select memory scan does
not start.
No, or only 1 memory channel is
designated as a Select channel.
Designate at least 2 memory channels
as Select channels for the scan.
–
The contents of a selected
memory channel is not
changed.
The contents of the selected memory
channel were changed, but they are not
saved.
When you want to save the changed
settings, touch [MW] for 1 second to
write them into the memory channel on
the VFO/MEMORY screen.
–
Cannot hear the speech
after pushing
SPEECH
.
The speech level is too low.
Adjust “SPEECH Level” in the Speech
setting.
The antenna SWR is too
high.
The antenna is not properly tuned.
Adjust the antenna SWR.
The antenna SWR should be less than 3.
The coaxial cable is not suitable.
Use a coaxial cable whose characteristic
impedance is 50 Ω.
“OVF” is displayed.
An excessively strong signal is received. Rotate
AF
RF/SQL
(outer) counter
clockwise.
Turn ON the attenuator.
Turn OFF the Preamplifier (P.AMP OFF).
Turn ON the Digital Selector function.
The touch screen is not
working correctly.
The touched point and the detected point
may be different.
Calibrate the touch screen in the
OTHERS screen.