Ganz ZR-DHC830NP Instruction Manual page 98

3. Adjust the Brightness/Contrast/Sharpness to adjust the picture quality .
4. Click on the button to restore default settings.
Enlarge picture display
Enlarge picture display
1. Select the channel on which you want to enlarge the display in search mode.
2. Click button several time to enlarge the picture on screen.
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