Icom IC-7800 Instruction Manual - Page 174

MAINTENANCE 13 D Scanning PROBLEM POSSIBLE CAUSE SOLUTION REF. Programmed scan does • Squelch is open. not stop. • Set [SQL] to the threshold point. p. 3-9 Programmed scan does • The same frequencies have been programmed • Program different frequencies in scan edge p. 8-4 not start. in scan edge memory channels P1 and P2. memory channel P1 and P2. Memory scan does not • 2 or more memory channels have not been • Program more than 2 memory channels. start programmed. p. 8-4 Select memory scan does • 2 or more memory channels have not been • Designate more than 2 memory channels as p. 9-7 not start designated as select channels. select channels for the scan. D Display PROBLEM POSSIBLE CAUSE The displayed frequency • The dial lock function is activated. does not change properly. • A set mode screen is selected. • The internal CPU has malfunctioned. SOLUTION REF. • Push [LOCK] to turn the function OFF. p. 5-18 • Push [EXIT/SET] several times to exit the set p. 12-2 mode screen. • Reset the CPU. p. 13-7 I Main dial brake adjustment Light Heavy The tension of the main dial may be adjusted to suit you preference. The brake adjustment is located on the bottom side of the front panel. See the figure at left. Slide the brake adjustment to comfortable tension level while turning the dial continuously and evenly in one direction. I Voice synthesizer operation [SPEECH] for main [SPEECH] for sub The IC-7800 has built-in voice synthesizer to announce the frequency, mode, etc. (S-meter level can also be announced-p. 12-17) in clear, electronically-generated voice, in English (or Japanese). ➥ Push [SPEECH] to announce the currently selected frequency, etc. • Push [SPEECH] for 1 sec. to additionally announce the selected mode. ➥ Pushing a mode switch also announces the appropriate mode. (p. 12-17) The output level of the voice synthesizer can be adjusted in level set mode. (p. 12-5) 13-3