Sharp LC-20B8U Antenna, ■Cautions regarding use in high and low temperature environments, Troubleshooting (Continued)

Troubleshooting (Continued)

■Before calling for repair services, make the following checks for possible remedies to the encountered symptoms.

Antenna

Problem	Check item
The picture is not sharp.	• The reception may be weak.
	• The quality of the broadcast may also be bad.
The picture moves.	• Make sure the antenna is facing the right direction.
	• Make sure the outside antenna is connected.
The picture is doubled or	• Make sure the antenna is facing the right direction.
tripled.	• There may be reflected electric waves from mountains or buildings.
	• There may be interference from automobiles, trains, high voltage lines,
The picture is spotted.	neon lights, etc.
	• There may be interference between the antenna cable and AC cord. Try
	positioning them further apart.
	• Is the unit receiving interference from other devices?
There are stripes on the	Transmission antennas of radio broadcasting stations, transmission
	antennas of amateur radios and cellular phones may also cause interfer-
screen or colors fade.	ence.
	• Use the unit as far apart as possible from devices that may cause possible
	interference.

PC

Problem	Check item	Reference
		page
	• Make sure the RGB cable is properly connected.	33
	• Make sure the output signal of the PC and the input signal	34
There is no image.	setting of the LCD TV set are matched.
	• Some software prohibit video playback on an external display	–
	when playing back a video with a notebook PC. This is not
	attributable to a problem with the LCD TV set.
	• Make sure the PC audio cable is properly connected.	33
	• Check if “PC SOUND SELECT” is set to “INPUT5 (PC)”.	23
There is no sound.	• Check if the mute function activates, or if the volume is set to	16
	minimum.
	• V-CHIP BLOCK may have been activated while an item other	23
	than “INPUT5 (PC)” is selected in “PC SOUND SELECT”.
The text is blurred.	• Adjust “CLOCK” and “PHASE” using the FINE SYNC. menu.	34
The image is not displayed in	• Adjust “H.POS.” and “V.POS.” using the FINE SYNC. menu.	34
the center of the screen.

■Cautions regarding use in high and low temperature environments

•When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed. This is not a malfunction, and the unit will recover when the temperature returns to normal.

•Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a heater, as this may cause the cabinet to deform and the LCD panel to malfunction.

Storage temperature: –4°F to +140°F (–20°C to +60°C)

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