Epson 821 manual Interference or distortion appear in images, Is an extension cable being used?

Problems Solving

78

Interference or distortion appear in images

		Check	Remedy
Are the image signal format settings correct?			If a composite videog or S-Videogsource is connected to the projector, use the "Video Signal"
			menu command to select the signal format.
		Only when projecting images
			"Signal" - "Video Signal" sp.57
		from a video source
Are the cables connected correctly?			Check that all of the cables required for projection are securely connected. sp.18– p.25
Is an extension cable being used?			If an extension cable is used, electrical interference may affect the signals. Use the accessory cables
			and check if this helps.
Has the correct resolution been selected?			Set the computer so that the signals that are output are compatible with this projector.
			"List of Supported Monitor Displays" sp.99
	Only when projecting computer images
			s Computer documentation
Have the "Sync.g" and "Trackingg" settings			Press the [Auto] button on the remote control or the [Enter] button on the projector's control panel to
been adjusted correctly?			carry out automatic adjustment. If the images have not been adjusted correctly after using automatic
			adjustment, you can make the adjustments using the "Sync." and "Tracking" menus. sp.41, p.42
	Computer and RGB video signals only