9
MAINTENANCE
35
BASIC MANUAL
■ Troubleshooting
The following chart is designed to help you correct problems that 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.
L “AM” indicates the PDF type Advanced Manual.
The transceiver does not turn ON.
z The battery is exhausted.
→ Charge the battery pack, or replace
the batteries. (p. 6)
z Loose the connection of a battery pack
(case).
→ Clean the battery terminals.
z The battery polarity in the battery case
is reversed.
→ Check the battery polarity in the
case.
No sound comes from the speaker.
z The volume level is too low.
→ Rotate [VOL] to adjust the level.
(p. 7)
z The squelch level is too high.
→ Adjust the squelch level. (p. 12)
z The tone or digital squelch function is
turned ON.
→ Turn OFF the function. (AM)
z An external speaker is connected to the
[SP] jack.
→ Check the external speaker
connection.
Sensitivity is too low, and only strong
signals are heard.
z The coaxial cable is not connected or
shorted (External antenna is used).
→ Check the coaxial cable connection
or replace it with a new one.
z The Attenuator function is turned ON.
→ Turn OFF the attenuator. (p. 16)
No reply is received after a call.
z The duplex function is set, the receive
and transmit frequencies are dierent.
→ Set for simplex operation. (AM)
z No station is in range or on the same
frequency.
→ Wait for a while, and try again.
Frequency cannot be set.
z The Key Lock function is activated.
→ Cancel the Key Lock function.
(p. 20)
z The VFO mode is not selected.
→ Push [V/MHz] to select the VFO
mode. (p. 14)
The displayed frequency is
erroneous.
z The CPU has malfunctioned.
→ Reset the transceiver. (p. 34)
z External factors have caused a fault.
→ Remove and reattach the battery
pack/case. (p. 5)
Unable to transmit.
z The transmit power level is set to S-Low,
Low1, Low2, or Mid.
→ Set the transmit power level to High.
(p. 20)
z The PTT Lock function is activated.
→ Turn OFF the function on the MENU
screen. (p. 71)
z The Busy Lockout function is activated.
→ Turn OFF the function on the MENU
screen. (p. 71)
z The transmit frequency is out of the
amateur radio band.
→ Set the transmit frequency within the
amateur radio band. (p. 15)
A Program Scan does not start.
z The VFO mode is not selected.
→ Push [V/MHz] to select the VFO
mode. (p. 14)
z The same frequencies are entered into
the scan edges.
→ Enter dierent frequencies into the
scan edges. (AM)
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