Icom ID-4100A User Manual - Page 71

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