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Troubleshooting-Digital Broadcasting - Sharp Aquos LC C4067U Operation Manual

Sharp lcd tv user manual
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Table of Contents
Appendix
Troubleshooting
Problem
No power
Unit cannot be operated.
Remote control unit does not
operate.
Picture is cut off/with sidebar
screen.
Strange color, light color, or color
misalignment
Power is suddenly turned off.
No picture
No sound
The TV sometimes makes a
cracking sound.

Troubleshooting-Digital Broadcasting

The error message about reception of broadcast
The example of an error message
displayed on a screen
Failed to receive broadcast.
No broadcast now.
Cautions regarding use in high and low temperature environments
When the unit is used in a low temperature space (e.g. room, offi ce), 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: f 4°F to
e 140°F ( f 20°C to e 60°C)
Check if you pressed POWER on the remote control unit. (See page 12.) If the
indicator on the TV does not light up, press POWER on the TV.
Is the AC cord disconnected? (See page 8.)
Has the power been turned on? (See page 12.)
External infl uences such as lightning, static electricity, may cause improper
operation. In this case, operate the unit after fi rst turning off the power of the TV or
unplugging the AC cord and replugging it in after 1 or 2 minutes.
Are batteries inserted with polarity ( e , f ) aligned? (See page 9.)
Are batteries worn out? (Replace with new batteries.)
Are you using it under strong or fl uorescent lighting?
Is a fl uorescent light illuminated near the remote control sensor?
Is the image position correct? (See page 20.)
Are screen mode adjustments such as picture size made correctly? (See page 16.)
Adjust the picture tone. (See page 18.)
Is the room too bright? The picture may look dark in a room that is too bright.
Check the input signal setting. (See page 20.)
Is the sleep timer set? (See page 13.)
Check the power control settings. (See page 19.)
The unit's internal temperature has increased. Remove any objects blocking vent or
clean.
Is connection to other components correct? (See page 11.)
Is correct input signal source selected after connection? (See page 24.)
Is the correct input selected? (See page 24.)
Is picture adjustment correct? (See page 18.)
Is "On" selected in "Audio Only"? (See page 24.)
Is a non-compatible signal being input? (See page 30.)
Is the volume too low? (See page 13.)
Is "Variable" selected in "Output Select"? (See page 24.)
Have you pressed MUTE on the remote control unit? (See page 13.)
This is not a malfunction. This happens when the cabinet slightly expands and
contracts according to change in temperature. This does not affect the TV's
performance.
Check the antenna cable. Check that the antenna is correctly setup.
Check the broadcast time in the program guide.
27
Possible Solution
Possible Solution

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