Appendix; Troubleshooting - Sharp Aquos LC 26GD4U Operation Manual

Appendix

Troubleshooting

Problem
• No power
• Unit cannot be operated.
• Remote control unit does not
operate.
• Picture is cut off/with sidebar
screen.
• When playing back video in card
mode, a part of the image is
missing or the image is out of
position.
• Strange color, light color, or color
misalignment
• Power is suddenly turned off.
• No picture
• No sound
• The upgrade screen will continue
to be displayed indefinitely.
Alternatively, it may appear and
disappear repeatedly.
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 Liquid Crystal panel to malfunction.
Storage temperature: –4°F to +140°F (–20°C to +60°C)
92
Possible Solution
• Check if you pressed TV POWER on the remote control unit. (See page 20.)
If the indicator on the Display lights up red, press TV POWER on the remote
control unit.
• Is the AC cord disconnected? (See page 10.)
• Has the main power been turned on? (See page 20.)
• External influences such as lightning, static electricity, may cause improper
operation. In this case, operate the unit after first turning on the power of the
Display or unplugging the AC cord and replugging it in after 1 or 2 minutes.
• Is the FUNCTION set correctly? Set it to the TV setting position.
• Are batteries inserted with polarity (e, f) aligned? (See page 13.)
• Are batteries worn out? (Replace with new batteries.)
• Are you using it under strong or fluorescent lighting?
• Is a fluorescent light illuminated near the remote control sensor?
• Is the image position correct? (See page 62.)
• Are screen mode adjustments such as picture size made correctly? (See pages
68 and 69)
• The video playback setting has been affected as a result of moving the image
position when playing back a still image in card mode.
It is recommended not to move the image position when playing back images
from a card.
• Adjust the picture tone. (See pages 31 to 34.)
• Is the room too bright? The picture may look dark in a room that is too bright.
• Check the input signal setting. (See page 66.)
• Is the sleep timer set? (See page 71.)
• Check the power control settings. (See page 36.)
• The unit's internal temperature has increased.
Remove any objects blocking vent or clean the vent.
• Is connection to other components correct? (See pages 51 to 57.)
• Is correct input signal source selected after connection? (See page 66.)
• Is the correct input selected? (See page 66.)
• Is a non-compatible signal being input? (See page 93.)
• Is picture adjustment correct? (See pages 31 to 34.)
• Is "On" selected in "Audio Only"? (See page 70.)
• Is the volume too low? (See page 23.)
• Is "Variable" selected in "Output Select"? (See page 71.)
• Is "On" selected in "Center Channel Input"? (See page 84.)
• Is the cable antenna connected? Remove the CableCARD, reconnect the Antenna
correctly, and then reinsert the CableCARD. If the problem is still not resolved,
contact your cable company.