Bedienungsanleitung Sharp LC-90LE757 (Seite 80 von 94) (Englisch)

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Appendix

Troubleshooting

Problem Possible solution

• No power. • Is the AC cord disconnected?

• Check if you pressed a on the TV.

• 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 46, 58 and 59)

• Strange colour,

light colour, or dark

colour, or colour

misalignment.

• Adjust the picture tone.

• 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 48).

• 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 40).

• Is “No signal off” or “No operation off” activated? (Page 40)

• No picture. • Are connections to external equipment correct?

(Pages 27_32)

• Is the input signal type selected correctly after connection?

(Page 47)

• Is the correct input source selected? (Page 19)

• Is a non-compatible signal being input? (Page 61)

• Is the picture adjustment correct? (Pages 36_38)

• Is the antenna connected properly? (Page 10)

• Refer to “Picture / Audio test” (Page 80).

• No sound. • Is the volume too low?

•

If you do not clearly hear the sound for the visually impaired,

go to “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 28, 30 and 47)

• Refer to “Picture / Audio test” (Page 80).

• 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.

• Net TV start page

cannot be displayed.

• Is the ETHERNET cable connected correctly? (Page 64)

• Check the settings of “Network setup” (Pages 64–65).

• 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 66).

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