Icom IC-M421 Instruction Manual page 52

7
SET MODE
D D Dual/Tri-watch
Select the watch function from Dualwatch or tri-watch. (p. 11)
Dual/Tri
Tri-watch
˘Dualwatch
D D Beep tone
You can select the silent operation by turning beep tones
OFF, or you can have confirmation beeps sound at the push
of a key by turning beep tones ON.
Beep
˘ON
OFF
Beep tone ON (default)
46
--Set Mode--
<ENT˘OK>
Dualwatch (default)
--Set Mode--
<ENT˘OK>
D D Backlight
The LCD backlight level can be adjusted from OFF, Min
(dark), Mid and Max (bright).
--Set Mode--
Backlight
˘Max
Mid
Min
<ENT˘OK>
LCD backlight level MAX (default)
D D LCD contrast
This item adjusts the contrast of the LCD in 8 steps. 1 is the
lowest contrast, and 8 is the highest contrast.
--Set Mode--
Contrast
6
5
˘4
<ENT˘OK>
LCD contrast level 4 (default)
≥
≤
≥