CTX p772L 用户手册

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9

1. Press " 

↵ 

↵ 

↵ 

↵ 

↵ 

" to open the OSD main menu.

2. Use the "

∇" and " ∆ " buttons to move through the displayed functions.

3. Press " 

↵ 

↵ 

↵ 

↵ 

↵ 

" to confirm your selected function.

Press the "

∆" button to enter the contrast, and press the "∇" or

"

∆" button to increase or decrease the contrast level, then press

" ESC" button to exit.

Press the "

∇" button to enter the brightness, and press the "∇"

or "

∆" button to increase or decrease the brightness level, then

press " ESC" button to exit.

Press " 

↵ 

↵ 

↵ 

↵ 

↵ 

" to adjust volume and enter sound playing mode.

• Normal Mode
a. Press the " ESC " button to enter sound playing mode in

mute mode

b. Press the " ESC " button to enter mute mode in sound playing

mode.

c. Press the " 

↵ 

↵ 

↵ 

↵ 

↵ 

" to turn on the OSD main menu.

• Power Saving Mode (when power indication lights amber)
a. Mute Hot Key (When playing music)

Press "ESC" to enter Mute Mode, and press "ESC" again to
return to sound playing mode.

b. Control the volume

In Power Saving Mode, press "

∇" or "∆" to enter the volume

tuning window, and press "

∆" or "∇" key to adjust the volume.

After 6 seconds, the volume tuning window will close
automatically.

a. Press "

∇" or "∆" to adjust volume .

b. Press " ESC " to leave this function.