Appendix; Troubleshooting - Sharp AQUOS LC-40LE550U Manual De Operación

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.
CLEARING THE MASTER PASSWORD
If you forgot the password number, reset the secret number by following the procedures below:
1. Press MENU
2. Select "InitialSetup", press "ENTER"
3. Select "Individual Setup", press "ENTER"
4. Press number 7071
5. Select "Secret No."
6. Enter new password
• As a precautionary measure, make a note of your secret number above, cut it from this manual, and keep it in a safe place.
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)
38
• Check if you pressed POWER on the remote control unit. (See page
19.) If the indicator on the TV is still red, press POWER on the TV.
• Is the AC cord disconnected? (See page 8.)
• Has the power been turned on? (See page 19.)
• External influences such as lightning, static electricity, may cause
improper operation. In this case, operate the unit after first turning
off the power of the TV or unplugging the AC cord and re-plugging
it after 1 or 2 minutes.
• Are batteries inserted with polarity ( +, - ) aligned? (See page 10.)
• 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?
• Are screen mode adjustments such as picture size made correctly?
(See page 23.)
• Adjust the picture tone. (See page 26 and 27.)
• Is the room too bright? The picture may look dark in a room that
is too bright.
• Is the sleep timer set? (See page 21.)
• The unit's internal temperature has increased. Remove any
objects blocking vent.
• Is connection to other components correct? (See page 16.)
• Is the correct input selected? (See page 14.)
• Is the volume too low? (See page 21.)
• Have you pressed MUTE on the remote control unit? (See page 21.)
• 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.
Possible Solution