Sharp LC-13S1U, LC-15S1U, LC-20S1U Operation Manual page 52

TROUBLESHOOTING (Continued)
Antenna
Problem
The picture is
not sharp.
The picture
moves.
The picture is
doubled or
tripled.
The picture is
spotted.
There are
stripes on the
screen or
colors fade.
I 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 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)
• 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.
• Make sure the antenna is facing the right direction.
• There may be reflected electric waves from mountains or
buildings.
• 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.
• Is the unit receiving interference from other devices?
Transmission antennas of radio broadcasting stations, transmis-
sion 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.
Check item
51