Icom IC-7100 Advanced Instructions - Page 356
Display, Scanning, PROBLEM, POSSIBLE CAUSE, SOLUTION
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Previous view 19 MAINTENANCE Troubleshooting DDTransmit and receive (Continued) PROBLEM POSSIBLE CAUSE SOLUTION REF. The antenna is not prop- • The antenna SWR is adjusted too high. • Adjust the antenna SWR. Sec. 6 erly tuned. • Check the coaxial cable. • Change the length of the coaxial cable. Sec. 2 The supply voltage de- • The capacity of power supply is too low. • Use a power supply with capacity of at Sec. 2 creases when transmit- least 22 Amperes. ting. The continuous transmis- • The time-out timer activates. sions is inhibited. • Turn OFF the time-out timer function. Sec. 17 Transmitting is impossible • T he 144/430 MHz frequency band is se- • Select the HF/50 MHz frequency band. Sec.3 in AM. lected. No voice synthesizer au- • T he speech level is set to minimum. dio from the speaker. • Adjust the speech level. Sec. 17 Cloning error occurs when • T he CI-V data transfer speed is set to 300 • Set the CI-V data transfer speed to other Sec. 17 reading or writing through or 1200 bps. than 300 and 1200 bps. the USB cable. • T he CI-V data transfer speed is set to • Select the Clone mode in the Others Set C S - 7 1 0 0 Auto, but cloning is performed with 300 or mode. Instruction 1200 bps. manual DDDisplay PROBLEM POSSIBLE CAUSE The displayed frequency • The dial lock function is turned ON. does not change. SOLUTION REF. • H old down SPEECH OFF the function. for 1 second to turn Sec. 5 DDScanning PROBLEM POSSIBLE CAUSE SOLUTION REF. A Programmed scan does • The same frequencies have been pro- • Program different frequencies into the Sec. 12 not start. grammed into both "1A-3A" and "1B-3B" "1A-3A" and "1B-3B" scan edge memory of the scan edge memory channels. channels. A Memory scan does not • 2 or more memory channels have not • Program more than 2 memory channels. Sec. 11 start. been programmed. A Select memory scan • 2 or more memory channels have not • Designate more than 2 memory channels Sec. 12 does not start. been designated as select channels. as select channels for the scan. A Mode select memory • 2 or more memory channels with the de- • Program more than 2 memory channels Sec. 11 scan does not start. sired mode have not been programmed. with the desired operating mode. 19-13