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Simple troubleshooting
Machine fails to work normally
1.Check whether there are other objects between remote control and television remote control receiving
window, thus leading to failure of remote control.
Remote control
failure
2.Check whether the battery electrode in the remote control is correct.
3.Check whether remote control needs to replace battery.
1.Whether set sleep or not.
Machine automatically
2.Check whether there is sudden power outage.
shut down
3.Check whether there is no signal automatic shutdown.
PC mode
1.Check whether display is set correctly.
2.Check whether resolution is the best resolution.
Signal out of range
3.Adjust line and field synchronization in menu.
1.Select automatic correction in menu.
Background has vertical
lines or streaks
2.Adjust clock and phase position in menu.
1.Check whether VGA is not well connected or has quality problem.
Image lack of color,
color is incorrect
2.Adjust chromaticity and brightness or contrast in menu.
1.Select automatic correction in menu.
Display format that is
not supported
2.Adjust clock and phase position in menu.
Touch Function
1.Check whether touch driver is installed and started.
Touch function invaild
2.Check whether the size of article touched is comparable with finger.
1.Check whether driver is properly installed and make correction.
Touch positioning not
correct
2.Check whether touch pen is facing the screen.
Video function can't work normally
1.Check whether the machine is started state.
No picture and no sound
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.
1.Check whether signal wire is well connected.
With horizontal or vertical
stripes or image dithering
2.Check whether other electronic equipment or power tools are placed around the machine.
1.Adjust chromaticity and brightness or contrast in menu.
No color, color is weak
or image is weak
2.Check whether signal wire is well connected.
Audio function can't work normally
1.Check whether mute button is pressed for mute.
With image but without
2.Press VOL. + / - to adjust volume.
sound
3.Check whether audio line is connected correctly.
1.Adjust sound balance in menu.
Only one speaker has
2.Check whether computer sound control panel only sets up one sound channel.
sound
3.Check whether audio line is connected correctly.
VGA output without
1.Check whether connect external device with headphone cable.
sound
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