Troubleshooting; Remote Control - Sharp LC-50LB261U Important Information Manual

CAUTION
Damage requiring service
Unplug this TV from the power outlet and refer servicing
to qualified service personnel under the following
conditions:
• When the power supply cord or plug is damaged or
frayed.
• If liquid has been spilled or objects have fallen into
your TV.
• If your TV has been exposed to rain or water.
• If your TV does not operate normally by following the
operating instructions. Adjust only those controls
that are covered by the operating instructions
because incorrect adjustment of other controls may
result in damage and will often require extensive
work by a qualified technician to restore your TV to its
normal operation.
• If your TV has been dropped or damaged in any way.
• When your TV exhibits a distinct change in
performance.
Outdoor antenna grounding
If an outside antenna or cable system is connected to your
TV, make sure that the antenna or cable system is
grounded to provide some protection against voltage
surges and built-up static charges. Article 810 of the
National Electrical Code, ANSI/NFPA No. 70, provides
information with respect to correct grounding of the mast
and supporting structure, grounding of the lead-in wire to
an antenna discharge unit, size of grounding conductors,
location of the antenna-discharge unit, connection to
grounding electrodes, and requirements for the grounding
electrode.
7
Note to CATV system installer
Article 820 of the National Electrical Code, ANSI/NFPA No.
40 provides guidance for correct grounding. Specifically, it
states that the cable ground must be connected to the
grounding system of the building as close to the point of
cable entry as practical.
Condensation
Moisture will form on the TV if the TV is brought from cool
surroundings into a warm room or if the temperature of
the room rises suddenly. When this happens, the TV's
performance may be impaired. To prevent this, let the TV
stand in its new surroundings for about an hour before
switching it on, or make sure that the room temperature
rises gradually.
Condensation may also form during the summer if the TV
is exposed to the breeze from an air conditioner. In such
cases, change the location of the TV.
4
Antenna lead-in wire
1
1 Grounding clamp
2
2
Antenna discharge unit
3
3 Grounding conductors
4
4
Ground clamps
5
5
Power service grounding
6
electrode system
6
Electric service equipment
7
Mobile telephone warning
To avoid interference with your TV picture and sound,
operating problems, or even damage, keep your cordless
and cellular telephones away from the TV.
End of life directives
Your TV may contain materials that are regulated for
environmental reasons. Your TV also contains materials
that can be recycled and reused. To help protect the
environment, contact your local authorities for information
about disposal or recycling and about finding a recycler in
your area before you dispose of your TV.
Non-active pixels
The LCD panel contains almost 3 million thin film
transistors, which provide exceptionally sharp video
quality. Occasionally, a few non-active pixels may appear
on the screen as a fixed blue, green, or red point. These
non-active pixels do not adversely affect the performance
of your TV, and are not considered defects.

Troubleshooting

Warning
Do not try to repair your TV yourself. Contact
authorized service personnel.

Remote control

Problem Solution
Remote control does
• Make sure that the power cord is correctly connected to
not work
your TV and a power outlet.
• Make sure that there are no obstructions between the
remote control and the remote control sensor on the front
of the TV.
• Point the remote control directly at the remote control
sensor on your TV. For the location of the remote control
sensor, see "Front view" in your Quick Setup Guide.
• Make sure that the batteries are installed correctly. See
"When can I turn on my TV" in your Quick Setup Guide.
• Replace dead batteries with new batteries. See "When can
I turn on my TV" in your Quick Setup Guide.
Trouble programming
• Replace dead batteries with new batteries. Refer to the
your existing
User Guide that accompanied your universal remote
universal remote
control.
control
• Refer to the User Guide that accompanied your universal
remote control and contact the manufacturer if problems
persist.
General
Problem Solution
No power
• Make sure that the power cord is correctly connected to
your TV and a power outlet.
• Unplug the power cord, wait 60 seconds, then plug the
cord back in and turn on your TV.
• Other devices (for example, a surround sound receiver,
external speakers, fans, or hair dryers) may be interfering
with your TV. Try turning off one device at a time to
determine which device is causing interference. After you
have determined which device is causing interference,
move it further from the TV to eliminate the interference.
"No signal" error
• Press INPUT and make sure that you have selected the
message is displayed
correct input for the device or service you are trying to use.
• If you are using a cable or satellite box, use the remote that
came with that box to change channels.
• Make sure that you have the correct input selected to view
channels from the cable or satellite box.