ViewSonic CDE6561T CDE7061T-1 User GuideEnglish - Page 45

Press the Mute/ Unmute button.

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Video not working properly No picture / No sound 1. Check POWER status. 2. Check the signal cable. Picture trembling 3. Check that the internal PC is installed correctly. 1. Check the signal cable. Poor picture 2. Check if other electronics are interrupting the signal. 1. Adjust chroma, brightness and contrast settings in the menu. 2. Check the signal cable. Audio not working properly No sound 1. Press the Mute/ Unmute button. 2. Adjust the volume. One speaker only 3. Check the audio cable. 1. Adjust the sound balance in the menu. 2. Check the sound control panel settings of the computer. 3. Check the audio cable. No sound from VGA-OUT 1. Check that the audio cable is properly connected. 37

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37
Video not working properly
No picture / No sound
1.
Check POWER status.
2.
Check the signal cable.
3.
Check that the internal PC is installed correctly.
Picture trembling
1.
Check the signal cable.
2.
Check if other electronics are interrupting the
signal.
Poor picture
1.
Adjust chroma, brightness and contrast settings in
the menu.
2.
Check the signal cable.
Audio not working properly
No sound
1.
Press the Mute/ Unmute button.
2.
Adjust the volume.
3.
Check the audio cable.
One speaker only
1.
Adjust the sound balance in the menu.
2.
Check the sound control panel settings of the
computer.
3.
Check the audio cable.
No sound from VGA-OUT
1.
Check that the audio cable is properly connected.