Icom ID-4100A Basic Manual page 71

PROBLEM
Transmitting is • Duplex function are ON, and the transmit
impossible, or the and receive frequencies are different.
transmit power level • The transmit power level is set to LOW or
is low. MID.
• The PTT Lock function is activated.
• The Busy Lockout function is activated.
The displayed • The CPU has malfunctioned.
frequency is • External factors have caused the fault.
erroneous.
Frequency cannot be • The Lock function is activated.
set.
• The VFO mode is not selected.
A Program Scan does • The VFO mode is not selected.
not start. • The same frequencies are entered into the
scan edges.
A Memory Scan does • The Memory mode is not selected.
not start. • Only one or no memory channel has been
programmed.
During tone squelch • Transmitter's microphone gain is too high.
operation, the received
audio breaks off at the
other station.
Transmission is • The Time-out timer function is activated.
automatically cut off.
*"AM" indicates the Advanced manual.
POSSIBLE CAUSE
MAINTENANCE
SOLUTION
• Turn OFF the Duplex function.
• Set the transmit power level to HIGH.
• Turn OFF the PTT Lock function.
• Turn OFF the Busy Lockout function.
• Reset the transceiver.
• Disconnect and connect to the DC power
supply.
• Hold down [LOCK] for 1 second to turn OFF
the Lock function.
• Push [V/M] to select the VFO mode.
• Push [V/M] to select the VFO mode.
• Enter different frequencies into the scan
edges.
• Push [V/M] to select the Memory mode.
• Program two or more memory channels.
• Set the microphone sensitivity to low.
• Turn OFF the Time-out timer function.
9
REF.
AM
sec. 8
p. 26
p. 35
p. 35
p. 53
–
p. 24
9
p. 21
p. 21
AM
sec. 2
p. 21
p. 41
p. 35
p. 35
56
BASIC MANUAL