Poor picture
• Adjust chroma, brightness and contrast in the menu�
• Check the signal cable�
Audio not working properly
No sound
• Check the mute key�
• Adjust the volume�
• Check the audio cable�
One speaker
• Adjust the sound balance in the menu�
• Check the setting in sound control panel of the computer�
• Check the audio cable�
VGA-OUT
silence
• Check if the earphone is properly connected�
2016/12/01
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