Icom IC-7700 ■Main dial brake adjustment, DScanning, D Display, DFormat USB-Memory, MAINTENANCE

MAINTENANCE 13DScanning

PROBLEM			POSSIBLE CAUSE	SOLUTION	REF.
Programmed	scan	does	• Squelch is open.	• Set [SQL] to the threshold point.	p. 3-9
not stop.
Programmed	scan	does	• The same frequencies have been programmed	• Program different frequencies in scan edge	p. 8-3
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.	p. 8-3
start			programmed.
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	SOLUTION	REF.
The displayed frequency	• The dial lock function is activated.	• Push [LOCK] to turn the function OFF.	p. 5-17
does not change properly.	• A set mode screen is selected.	• Push [EXIT/SET] several times to exit the set	p. 12-2
		mode screen.
	• The internal CPU has malfunctioned.	• Reset the CPU.	p. 13-7

DFormat USB-Memory

PROBLEM			POSSIBLE CAUSE			SOLUTION	REF.
Format	error	appears	• The inserted USB-Memory capacity is smaller	• Insert	a	USB-Memory larger than 64 MB or	p. 12-26
when formatting in FAT32			than 64 MB.	select the FAT format.
Format	error	appears	• The inserted USB-Memory capacity is larger	• Insert	a	USB-Memory smaller than 2 GB or	p. 12-26
when formatting in FAT			than 2 GB.	select the FAT32 format.

■Main dial brake adjustment

[MAIN DIAL]

Brake

adjustment Light Heavy

The tension of the main dial may be adjusted to suit your preference.

The brake adjustment is located on the bottom side of the front panel. See the figure at left.

Slide the brake adjustment to a comfortable tension level while turning the dial continuously and evenly in one direction.

13-3