Read Sharp LC-40LE700E (serv.man14) User Guide / Operation Manual online
41
Troubleshooting
Problem
Possible solution
No power.
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Turn on (;) the MAIN POWER switch on the left side of the TV (Page 4).
Check if you pressed B on the remote control unit. If the indicator on the TV lights up red, press
B.
Is the AC cord disconnected?
Check if you pressed a on the TV.
Check if you pressed B on the remote control unit. If the indicator on the TV lights up red, press
B.
Is the AC cord disconnected?
Check if you pressed a on the TV.
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The TV cannot be operated.
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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.
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.
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Remote control unit does not operate.
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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?
Are you using it under strong or fluorescent lighting?
Is a fluorescent light illuminating to the remote control sensor?
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Picture is cut off.
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Is the image position correct?
Are screen mode adjustments (WIDE MODE) such as picture size made correctly? (Pages 31 and 37)
Are screen mode adjustments (WIDE MODE) such as picture size made correctly? (Pages 31 and 37)
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Strange colour, light colour, or dark
colour, or colour misalignment.
colour, or colour misalignment.
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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 29 and 34).
Is the room too bright? The picture may look dark in a room that is too bright.
Check the “Colour system” setting (Pages 29 and 34).
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Power is suddenly turned off.
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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 26).
Is “No signal off” or “No operation off” activated? (Page 26)
Is the “Sleep timer” set? Select “Off” from the “Sleep timer” menu (Page 26).
Is “No signal off” or “No operation off” activated? (Page 26)
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No picture.
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Are connections to external equipment correct? (Pages 16_18)
Is the input signal type selected correctly after connection? (Page 34)
Is the correct input source selected? (Page 12)
Is a non-compatible signal being input? (Page 38)
Is the picture adjustment correct? (Pages 23_24)
Is the antenna connected properly? (Page 8)
Is “On” selected in “Audio only”? (Page 25)
Is the input signal type selected correctly after connection? (Page 34)
Is the correct input source selected? (Page 12)
Is a non-compatible signal being input? (Page 38)
Is the picture adjustment correct? (Pages 23_24)
Is the antenna connected properly? (Page 8)
Is “On” selected in “Audio only”? (Page 25)
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No sound.
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Is the volume too low?
Make sure that headphones are not connected.
Check if you pressed e on the remote control unit.
Is the proper item selected in the “PC audio select” menu when connecting devices to the HDMI 2
terminal or the EXT 4 terminal? (Pages 16 and 25)
Make sure that headphones are not connected.
Check if you pressed e on the remote control unit.
Is the proper item selected in the “PC audio select” menu when connecting devices to the HDMI 2
terminal or the EXT 4 terminal? (Pages 16 and 25)
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The TV sometimes makes a cracking
sound.
sound.
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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.
changes in temperature. This does not affect the TV’s performance.
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Cautions regarding use in high and low temperature environments
When the TV 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 TV will recover when the temperature returns to normal.
Do not leave the TV in a hot or cold location. Also, do not leave the TV in a location exposed to direct sunlight or near a heater, as this
may cause the cabinet to deform and the LCD panel to malfunction.
Storage temperature:
a malfunction, and the TV will recover when the temperature returns to normal.
Do not leave the TV in a hot or cold location. Also, do not leave the TV in a location exposed to direct sunlight or near a heater, as this
may cause the cabinet to deform and the LCD panel to malfunction.
Storage temperature:
e 5 °C to e 35 °C.
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Appendix
LC-LE700E_GB.indd 41
LC-LE700E_GB.indd 41
2009/07/13 14:51:46
2009/07/13 14:51:46
Click on the first or last page to see other LC-40LE700E (serv.man14) service manuals if exist.