Icom IC-705 Basic Manual page 82

10
MAINTENANCE
Troubleshooting
Problem
While operating in the Memory
mode, you changed the
operating frequency, mode,
and so on, but a selected
memory channel contents are
not changed.
Cannot hear the speech after
pushing .
"OVF" is displayed.
The spectrum scope's
sensitivity is too low, and only
strong signals are displayed.
Cannot transmit voice
memories.
Cannot save TX/RX histories
or sound data.
"No SD Card is found." is
displayed.
"– No File –" is displayed on
the FIRMWARE UPDATE
screen.
The touch screen is not
working correctly.
The current time is reset.
Even when turning ON the
NTP function, the clock is not
automatically set.
Possible Cause
They were not overwrote already
in the selected memory.
The speech level is too low.
An excessively strong signal is
being received.
The reference level is too low.
"DATA OFF MOD" is set to "USB"
or "WLAN" by control from an
external device, and so on.
A microSD card is not inserted.
A microSD card is not
recognized.
The firmware file is in an incorrect
folder.
The firmware file name is
different.
The microSD card is not
formatted.
The touched point and the
detected point may be different.
The transceiver has not been
used for a long time, with the
battery detached or the DC
power cable disconnected.
The transceiver is not connected
to the Internet.
The transceiver IP address is
wrong.
10-5
Solution
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.
Adjust "SPEECH Level" in the
Speech setting.
Set the RF gain lower.
("RFG" is displayed.)
Turn ON the Attenuator.
Turn OFF the Preamplifier
(P.AMP OFF).
Set the reference level to a
higher level.
Set "DATA OFF MOD" to
"MIC,USB" (default) or "MIC."
Insert a microSD card.
Confirm that a microSD card is
inserted.
Reinsert a microSD card.
Exchange with a new microSD
card.
Copy the firmware file into the
IC-705 folder.
Download the firmware file again.
Format the microSD card.
Calibrate the touch screen on the
OTHERS screen.
Connect the transceiver to the
power source to charge the
backup battery of the internal
clock.
Confirm the network settings.
Turn ON the DHCP function to
automatically get the IP address,
or set the correct IP address.
REF.
AM
p. 8-5
p. 3-8
p. 4-1
p. 4-1
p. 5-1
p. 8-13
p. 6-1
p. 6-1
AM
p. 6-1
AM
p. 9-1
AM
p. 8-20