Bedienungsanleitung Sharp LC-57D90U Operation Manual (Seite 69 von 78) (Englisch)

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Appendix

• 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

• Upgrade is displayed continuously.

Problem Possible Solution

• Check if you pressed TV POWER on the remote control unit. (See page 15.)

If the indicator on the TV is off, press POWER on the TV.

• Is the AC cord disconnected? (See page 6.)

• 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 TV

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 7.)

• 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 44.)

• Are screen mode adjustments such as picture size made correctly? (See pages

48 and 49)

• Adjust the picture tone. (See pages 26 to 28.)

• Is the room too bright? The picture may look dark in a room that is too bright.

• Check the input signal setting. (See page 46.)

• Is the sleep timer set? (See page 51.)

• Check the power control settings. (See page 30.)

• The unit’s internal temperature has increased.

Remove any objects blocking vent or clean the vent.

• Is connection to other components correct? (See pages 33 to 38.)

• Is correct input signal source selected after connection? (See page 46.)

• Is the correct input selected? (See page 46.)

• Is a non-compatible signal being input? (See page 69.)

• Is picture adjustment correct? (See pages 26 to 28.)

• Is “On” selected in “Audio Only”? (See page 50.)

• If, after inserting the CableCARD security module, you are unable to receive

broadcast service, remove the CableCARD security module and reinsert.

• Is the volume too low? (See page 18.)

• Is “Variable” selected in “Output Select”? (See page 51.)

• Verify your antenna cable is connected property.

• Reinsert the CableCARD security module. If the trouble still exists after reinserting

the CableCARD security module and verifying the antenna cable, please contact

your Cable Provider Company.

Troubleshooting

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)

LC-57D90U(E)-068-075 06.1.12, 2:57 PM68

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Sharp LC-57D90U Operation Manual Seite 69

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