ViewSonic CDE8451 Car Video System User Manual


 
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To adjust the volume:
1. Press INPUT button on remote control to display the input setting menu.
2. Press RIGHT button on remote control or click “Volume” icon directly with touch
pen to enter Brightness Setting menu.
3. Press LEFT/ RIGHT button on remote control or drag icon directly with touch pen
to adjust the value.
4. Press < Mute > button on remote control or click mute icon directly with touching
pen to enable or disable mute function.
5. Press EXIT key on remote control or click blank area outside menu with touch
pen to quit the on-screen menu.