Sharp LC-19LS410UT, Service Manual

Page: 11 / 115

2008-03-14
LC-19LS410UT, LC-22LS510UT
11
Appendix
troubleshooting
problem possible Solution
No power 1. Check if you pressed
POWER
on the remote control unit. If the indicator on the TV does not light up, press
POWER
on the TV.
2. Is the AC cord disconnected?
3. Has the power been turned on?
Unit cannot be operated. 1. 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.
Remote control unit does not operate. 1. Is the
SOURCE
set correctly? Set it to the TV setting position.
2. Are batteries inserted with polarity (+, -) aligned?
3. Are batteries worn out?
4. Are you using it under strong or fluorescent lighting?
5. Is a fluorescent light illuminated near the remote control sensor?
Picture is cut off/with sidebar screen. 1. Are screen mode adjustments such as picture size made correctly?
Strange color,light color, or color misalignment 1. Adjust the picture tone.
2. Is the room too bright? The picture may look dark in a room that is too bright.
Power is suddenly turned off. 1. Is the sleep timer set?
2. The unit’s internal temperature has increased. Remove any objects blocking vent.
No picture
1. Is connection to other components correct?
2. Is the correct input selected?
3. Is picture adjustment correct?
No sound 1. Is the volume too low?
2. Have you pressed
MUTE
on the remote control unit?
The TV sometimes makes a cracking sound. 1. 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.
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)