User's Manual

Troubleshooting47
10/16/14
No picture and no sound 1.Check whether the machine is started state.
2.Check whether signal wire is well plugged, whether
INPUT is corresponding to it.
3.If in internal computer mode, check whether internal
computer is started.
With horizontal or
vertical stripes or image
dithering
1.Check whether signal wire is well connected.
2.Check whether other electronic equipment or power
tools are placed around the machine.
No color, color is weak
or image is weak
1.Adjust chromaticity and brightness or contrast in menu.
2.Check whether signal wire is well connected.
With image but without
sound
1.Check whether mute button is pressed for mute.
2.Press VOL. + / - to adjust volume.
3.Check whether audio line is connected correctly.
Only one speaker has
sound
1.Adjust sound balance in menu.
2.Check whether computer sound control panel only sets
up one sound channel.
3.Check whether audio line is connected correctly.
VGA output without
sound
1.Check whether connect external device with headphone
cable.