Troubleshooting; Cautions Regarding Use In High And Low Temperature Environments - Sharp LC-37D44E Service Manual

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 DTV menu screen is displayed
in monochrome and hard to select
the item.
• The TV sometimes makes a
cracking sound.

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.
IMPORTANT NOTE ON RESETTING THE PIN
We suggest that you remove the following instruction from the operation manual to prevent children from
reading it. As this operation manual is multilingual, we also suggest the same with each language. Keep it in a
safe space for future reference.
• Check if you pressed
If the indicator on the TV lights up red, press
• Is the AC cord disconnected?
• Check if you pressed
• 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.
• Are batteries inserted with polarity (+, -) aligned?
• Are batteries worn out? (Replace with new batteries.)
• Are you using it under strong or fluorescent lighting?
• Is a fluorescent light illuminated to remote control sensor?
• Is the image position correct?
• Are screen mode adjustments (4:3 Mode/WSS) such as picture size made
correctly?
• 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.
• Check the HDMI Setup setting.
• The unit's internal temperature has increased.
Remove any objects blocking vent or clean.
• Check the power control setting.
• Is sleep timer set? Press SLEEP on the remote control unit until it sets to Off.
• Is connection to other components correct?
• Is input signal type selected correctly after connection?
• Is the correct input source selected?
• Is non-compatible signal being input?
• Is picture adjustment correct?
• Is the antenna connected properly?
• Is "On" selected in "Audio Only"?
• Is the volume too low?
• Make sure that headphones are not connected.
• Check if you pressed
• Check if "Monochrome" is set to "On". If so, set it to "Off".
• 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.
1 – 4
Possible Solution
on the remote control unit.
.
on the TV.
on the remote control unit.
LC-37D44E/S/RU-BK/GY