Uniden TRU9488 - Manual (Page 22)

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Activating.the.Key.Touch.Tone
Key.Touch.Tone.is.the.tone.your.keypad.makes.when.keys.are.pressed..You.can.turn.this.
tone.on.or.off.
Press.the. MENU.soft.key..Select.the.HANDSET.SETUP.or.BASE.SETUP.menu,.
and.then.the.KEY.TOUCH.TONE.submenu.
Move.the.cursor.to.select.ON.or.OFF.
Press.the.
OK soft key. You will hear a confirmation tone.
Adjusting.the.Display.(LCD.Contrast)
Contrast.adjusts.the.handset.and.base.display.brightness..Choose.from.one.of.the.0.
levels.for.optimum.viewing.
Press.the. MENU.soft.key..Select.the.HANDSET.SETUP.or.BASE.SETUP.menu,.
and.then.the.LCD.CONTRAST.submenu.
Press.
[ / ].on.the.four-way.function.key.to.adjust.the.contrast.of.the.display.
Press.the. OK soft key. You will hear a confirmation tone.
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2)
3)
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3)
K e y T o u c h T o n e
O n
O f f
BACK D E L E T E OK
K e y T o u c h T o n e
O n
O f f
BACK D E L E T E OK
L C D C o n t r a s t
‑ +
B A C K OK
L C D C o n t r a s t
‑ +
B A C K OK