BenQ RM8602K User Manual - Page 79

to adjust volume., With image but without

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Troubleshooting 75 No picture and no sound With horizontal or vertical stripes or image dithering No color, color is weak or image is weak With image but without sound Only one speaker has sound VGA output without 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. • Check whether signal wire is well connected. • Check whether other electronic equipment or power tools are placed around the machine. • Adjust chromaticity and brightness or contrast in menu. • Check whether signal wire is well connected. • Check whether mute button is pressed for mute. • Press VOL+/VOL- to adjust volume. • Check whether audio line is connected correctly. • Adjust sound balance in menu. • Check whether computer sound control panel only sets up one sound channel. • Check whether audio line is connected correctly. Check whether connect external device with headphone cable.

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Troubleshooting
75
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 chromaticity and brightness or contrast in menu.
• Check whether signal wire is well connected.
With image but without
sound
• Check whether mute button is pressed for mute.
• Press
VOL+
/
VOL-
to adjust volume.
• Check whether audio line is connected correctly.
Only one speaker has
sound
• Adjust sound balance in menu.
• Check whether computer sound control panel only sets
up one sound channel.
• Check whether audio line is connected correctly.
VGA output without
sound
Check whether connect external device with headphone
cable.