Read Sharp LC-20AD5E (serv.man2) User Guide / Operation Manual online
GB
-32
Troubleshooting
Appendix
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 LCD panel to malfunction.
Storage temperature: –20°C to +60°C.
•
•
Problem
Possible Solution
No power.
•
Check if you pressed on the TV. (See page 8.)
If the indicator on the TV lights up red, press on the remote control unit.
Is the AC cord disconnected? (See page 4.)
Check if you pressed on the remote control unit. (See page 8.)
•
•
•
Unit cannot be operated.
•
External influences such as lightning, static electricity, etc., may cause
improper operation. In this case, operate the unit after first turning the power
off, or unplugging the AC cord and re-plugging it in after 1 or 2 minutes.
•
Remote control unit does not
operate.
•
Are batteries inserted with polarity (+, −) aligned? (See page 5.)
Are batteries worn out? (Replace with new batteries.)
Are you using it under strong or fluorescent lighting?
Is a fluorescent light illuminating the remote control sensor?
•
•
•
•
Picture is stretched vertically.
•
Are wide mode adjustments made correctly? (See page 18.)
•
Strange colour, light colour, or
dark, or colour misalignment.
•
Adjust the picture tone. (See page 12.)
Is the room too bright? The picture may look dark in a room that is too bright.
Check the colour system setting. (See page 15.)
•
•
•
Power is suddenly turned off.
•
The unit’s internal temperature has increased.
Remove any objects blocking vent or clean.
Check the No signal off setting. (See page 17.)
Is sleep timer set? Press SLEEP on the remote control unit until it sets to Off.
•
•
•
No picture.
•
Is connection to other components correct? (See page 9.)
Is input signal type selected correctly after connection? (See page 14.)
Is the correct input source selected? (See page 9.)
Is picture adjustment correct? (See page 12.)
Is the antenna connected properly? (See page 4.)
•
•
•
•
•
No sound.
•
Is the volume too low? (See page 6 and 7.)
Make sure that headphones are not connected. (See page 7.)
Check if you pressed on the remote control unit. (See page 6.)
•
•
•
The TV sometimes makes a
cracking sound.
•
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.
•
Click on the first or last page to see other LC-20AD5E (serv.man2) service manuals if exist.