Appendix; Troubleshooting; Troubleshooting (D-Tv) - Sharp AQUOS LC-42D83M Operation Manual

Appendix

Troubleshooting

Problem
• No power.
• Unit cannot be operated.
• Remote control unit does not
operate.
• Picture is cut off.
• Strange colour, light colour, or
dark, or colour misalignment.
• Power is suddenly turned off.
• No picture.
• No sound.
• The TV sometimes makes a
cracking sound.

Troubleshooting (D-TV)

Problem
• No picture or no sound.
• Block noise appears on the
screen.
• D-TV broadcasts cannot be
received.
• A specifi c channel cannot be
received.
Cautions regarding use in high and low temperature environments
• When the unit is used in a low temperature space (e.g. room, offi ce), 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: f 20°C to e 60°C.
• Check if you pressed POWER on the remote control unit. (See page 14.)
If the indicator on the TV lights up red, press POWER.
• Is the AC cord disconnected? (See page 10.)
• Has the power been turned on? (See page 14.)
• External infl uences such as lightning, static electricity, etc., may cause improper
operation. In this case, operate the unit after fi rst turning the power off the TV or
unplugging the AC cord and re-plugging it in after 1 or 2 minutes.
• Are batteries inserted with polarity ( e , f ) aligned? (See page 13.)
• Are batteries worn out? (Replace with new batteries.)
• Are you using it under strong or fl uorescent lighting?
• Is a fl uorescent light shining on the remote control sensor?
• Is the image position correct? (See page 35.)
• Are screen mode adjustments such as picture size made correctly? (See pages 30,
31 and 57.)
• Adjust the picture tone. (See pages 33 to 35.)
• Is the room too bright? The picture may look dark in a room that is too bright.
• Check the colour system setting. (See pages 21 and 50.)
• Check the input signal setting. (See page 59.)
• Check the HDMI Setup setting. (See page 48.)
• The unit's internal temperature has increased.
Remove any objects blocking the vent or clean.
• Check the power control setting. (See pages 28 and 29.)
• Is the sleep timer set? (See page 28.)
• Is the connection to external equipment correct? (See pages 11, 12, 48, 56 and 57.)
• Has the input signal setup been performed correctly after connection? (See page
59.)
• Is the correct input selected? (See page 49.)
• Is the picture adjustment correct? (See pages 33 to 35.)
• Is the antenna connected properly? (See page 10.)
• Is "On" selected in "Audio Only"? (See page 25.)
• Is the volume too low? (See page 19.)
• Make sure that headphones are not connected. (See page 8.)
• 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.
• Is the correct input source selected? (See page 49.)
• Is the antenna pointing in the correct direction?
• Check the Signal Level and Quality. (See page 43.)
• Are physical objects blocking the antenna?
• Is the antenna or antenna cable compatible with D-TV broadcasts?
• Is the D-TV antenna set up properly?
• Is the antenna cable connected properly? (See page 10.)
• Are the channel settings correct? (See pages 43 and 44.)
• Check the Signal Level and Quality. (See page 43.)
Possible Solution
Possible Solution
65