Sharp Aquos LC 20D30U - Manual (Page 43)

41
Troubleshooting (Continued)
Problem Check item
Reference
page
There is no image.
• Make sure the RGB cable is properly connected.
• Make sure the output signal of the PC and the input signal
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.
37
38
–
There is no sound.
• Make sure the PC audio cable is properly connected.
• Check if the mute function activates, or if the volume is set to
minimum.
37
18
The text is blurred. • Adjust “CLOCK” and “PHASE” using the FINE SYNC. menu. 38
The image is not displayed in
the center of the screen.
• Adjust “H.POS.” and “V.POS.” using the FINE SYNC. menu. 38
■ Before calling for repair services, make the following checks for possible remedies to the encountered symptoms.
Problem Check item
The picture is not sharp.
The picture moves.
• The reception may be weak.
• The quality of the broadcast may also be bad.
• Make sure the antenna is facing the right direction.
• Make sure the outside antenna is connected.
The picture is doubled or
tripled.
• Make sure the antenna is facing the right direction.
• There may be reflected electric waves from mountains or buildings.
The picture is spotted.
• There may be interference from automobiles, trains, high voltage lines,
neon lights, etc.
• There may be interference between the antenna cable and AC cord. Try
positioning them further apart.
There are stripes on the
screen or colors fade.
• Is the unit receiving interference from other devices?
Transmission antennas of radio broadcasting stations, transmission
antennas of amateur radios and cellular phones may also cause
interference.
• Use the unit as far apart as possible from devices that may cause possible
interference.
■
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)
Antenna
PC
LC-20D30U_E_book.indb 41 2005/12/15 11:27:49