AOC L15X421, L20S421, L20W421 user manual Using a highly directional antenna may

	Using a highly directional antenna may
	inprove the picture.
No power	*Check that the TV￿s AC power cord is plugged
	into the mains socket.
	*Unplug the TV, wait for 60 seconds. Then re-
	insert plug into the mains socket and turn on
	the TV again.
No picture	*Check antenna connections at the rear of the
	TV to see if it is properly connected to the TV.
	*possible broadcast station trouble. Try another
	channel.
	*Adjust the contrast and brightness settings.
	*Check the V-Chip control. Some V-Chip
	modes could block the screen.
Good picture but no	*Increase the VOLUME.
sound	*Check that the TV is not muted; press the
	button on the remote control.
Good sound but poor	*Adjust the contrast, color and brightness
color	settings.
	Adjust TV
	Mode￿AIR￿or￿CATV￿.￿HRC￿.￿IRC￿,check that
	is ok or not.
Poor picture	*Sometimes, poor picture quality occurs when
	having activated an S-VHS camera or
	camcorder connected and having connected
	another peripheral at the same time. In this
	case switch off one of the other peripherals
Snowy picture and	*Check the antenna connection
noise
Horizontal dotted	line*This may be caused by electrical interference
	(e.g. hairdryer, nearby neon lights, etc.)
	*Turn off the equipment.
Television not	*Check whether the batteries are working.
responding to remote	Replace if necessary
control	*Clean the remote control sensor lens on the
	TV.
	*You can still use the buttons at the front of
	your TV.
	*Select the TV mode to be sure your remote
	control is in the TV mode.

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