Touch Function
Touch function
invalid
Check whether the size of article touched
is comparable with finger.
Touch positionning
not correct
Check whether touch pen is facing the
screen.
No picture and no
sound
Check whether the machine is started
state.
Check whether signal wire is well plugged,
whether INPUT is corresponding to it.
If in internal computer mode, check
whether internal computer is started.
With horizontal or
vertical stripes or
image dithering
Check whether signal wire is well
connected.
Check whether other electronic equipment
or power tools are placed around the
machine.
No color, color is
weak, or image is
weak
Adjust chromatic and brightness or
contrast menu.
Check whether signal wire is well
connected.
Video Function Can’t Work Normally
17
Speechi 2022
