Filter
Top Products
84
Troubleshooting
Problem Possible solution
• No power. • Is the AC cord disconnected?
• Check if you pressed < on the TV.
• When the power switch does not work, remove the power plug and insert it again, and press
< on the TV after waiting more than five seconds.
• The TV cannot be operated. • External influences such as lightning, static electricity, etc., may cause improper operation. In
this case, operate the TV after first turning off the power, or unplugging the AC cord and
re-plugging it in after one or two minutes.
• Remote control unit does not
operate.
• Are batteries inserted with polarity (e, f) aligned?
• Are batteries worn out? (Replace with new batteries.)
• Are you using it under strong or fluorescent lighting?
• Is a fluorescent light illuminating to the remote control sensor?
• Picture is cut off. • Is the image position correct?
• Are screen mode adjustments (Wide mode) such as picture size made correctly? (Pages
47f48, 68, 69 and 70).
• Strange colour, light colour, or dark
colour, or colour misalignment.
• Adjust the picture tone (Pages 37f39).
• Is the room too bright? The picture may look dark in a room that is too bright.
• Check the “Colour system” setting (Pages 43 and 50).
• Check the “HDMI auto view” setting (Page 49).
• Power is suddenly turned off. • The TV’s internal temperature has increased. Remove any objects blocking the vent or clean.
• Is the “Sleep timer” set? Select “Off” from the “Sleep timer” menu (Page 41).
• Is “No signal off” or “No operation off” activated? (Page 41)
• No picture.
• Are connections to external equipment correct? (Pages 28f31)
• Is the correct input source selected? (Page 19)
• Is a non-compatible signal being input? (Page 71)
• Is the picture adjustment correct? (Pages 37f39)
• Is the antenna connected properly? (Page 9)
• No sound. • Is the volume too low?
• If you do not clearly hear the sound for the visually impaired, go to “HOME” > “TV Menu” >
“Setup” > “Audio” > “Audio description setting” > “Mix level”, and select the upper level to turn
up the volume.
• Make sure that headphones are not connected.
• Check if you pressed e on the remote control unit.
• Is the proper item selected in the “Audio select” menu when connecting devices to the HDMI 2
terminal or the PC terminal? (Pages 29, 48 and 70)
• The TV sometimes makes a cracking
sound.
• This is not a malfunction. This happens when the cabinet slightly expands and contracts
according to changes in temperature. This does not affect the TV’s performance.
• AQUOS.NET top page cannot be
displayed.
• Is the ETHERNET cable connected correctly? (Page 54)
• Check the settings of “Network setup”. (Pages 54f57)
• Some Internet functions used on a
PC are not available from the TV.
• The TV has only limited functions compared with regular PC browsers. (Page 59)
• Miracast image/audio cannot be
output to the TV.
• Check pairing.
• Bluetooth (smartphone) playback
cannot be displayed on the TV.
• Check pairing.
Troubleshooting — Digital broadcasting
Problem Error code Possible solution
• No picture or no sound. — • Is the correct input source selected? (Page 19)
• Block noise appears on the screen. — • Is the antenna pointing in the correct direction?
• Check the “Signal strength” and “Quality” (Page 17).
• Are physical objects blocking the antenna?
• Is the antenna or antenna cable compatible with DTV broadcast?
• DTV broadcasts cannot be
received.
E202
• Is the DTV antenna set up properly?
• Is the antenna cable connected properly? (Page 9)
• Is the channel settings correct? (Page 17)
• A specific channel cannot be
received.
— • Check the “Signal strength” and “Quality” (Page 17).
• No broadcast now.
E203
• Check the current broadcast.
Appendix
LC90LE760X_EN_book.indb 84LC90LE760X_EN_book.indb 84 4/4/2014 3:10:14 PM4/4/2014 3:10:14 PM