Troubleshooting
The problems described below are not always caused by malfunctions. Check the TV again before having the TV
serviced.
Problem
Possible Solution
• No power.
• Check if you pressed
POWER
on the remote control unit. (See page 18.)
If the indicator on the TV lights up red, press
POWER
.
• Is the AC cord disconnected? (See page 11.)
• Has the power been turned on? (See page 18.)
• Unit cannot be operated.
• External infl uences such as lightning, static electricity, etc., may cause improper
operation. In this case, operate the unit after fi rst turning the power off the TV or
unplugging the AC cord and re-plugging it in after 1 or 2 minutes.
• Remote control unit does not
operate.
• Are batteries inserted with polarity (
e
,
f
) aligned? (See page 17.)
• Are batteries worn out? (Replace with new batteries.)
• Are you using it under strong or fl uorescent lighting?
• Is a fl uorescent light shining on the remote control sensor?
• Picture is cut off.
• Is the image position correct? (See page 38.)
• Are screen mode adjustments such as picture size made correctly? (See pages 33,
34 and 78.)
• Strange colour, light colour, or
dark, or colour misalignment.
• Adjust the picture tone. (See pages 36 to 38.)
• Is the room too bright? The picture may look dark in a room that is too bright.
• Check the colour system setting. (See pages 25 and 50.)
• Check the HDMI auto view setting. (See page 48.)
• Power is suddenly turned off.
• The unit’s internal temperature has increased.
Remove any objects blocking the vent or clean.
• Check the ECO setting. (See page 32.)
• Is the sleep timer set? (See page 32.)
• No picture.
• Is the connection to external equipment correct? (See pages 14 and 15.)
• Is the correct input selected? (See page 49.)
• Is the picture adjustment correct? (See pages 36 to 38.)
• Is the antenna connected properly? (See page 11.)
• Is “On” selected in “Audio only”? (See page 28.)
• No sound.
• Is the volume too low? (See page 23.)
• Make sure that headphones are not connected. (See page 9.)
• 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.
Troubleshooting-Digital broadcasting
The error message about reception of broadcast
The example of an error message
displayed on a screen
Error code
Possible Solution
• Failed to receive broadcast.
E202
• Check the antenna cable. Check that the antenna is correctly setup.
• No broadcast now.
E203
• Check the broadcast time in the program guide.
85
Appendix
LC-40LB700X_en_j.indd 85
LC-40LB700X_en_j.indd 85
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