Sharp LC-32DH57RU, LC-32DH57S Service Manual page 9

Troubleshooting
Problem
• No power.
• The TV cannot be operated.
• Remote control unit does not operate.
• Picture is cut off.
• Strange colour, light colour, or dark colour,
or colour misalignment.
• Power is suddenly turned off.
• No picture.
• No sound.
• The TV sometimes makes a cracking
sound.
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: + 5 °C to + 35 °C.
Information on the software license for this product
Software composition
The software included in this product is comprised of various software components whose individual copyrights are held by SHARP or by
third parties.
Software developed by SHARP and open source software
The copyrights for the software components and various relevant documents included with this product that were developed or written
by SHARP are owned by SHARP and are protected by the Copyright Act, international treaties, and other relevant laws. This product also
makes use of freely distributed software and software components whose copyrights are held by third parties. These include software
components covered by a BSD-like License or other license agreement.
We are unable to answer any questions about the source code for the open source software. The source code for the software
components whose copyrights are held by SHARP is not distributed.
Acknowledgements
The following open source software components are included in this product:
• Freetype • unicode • Teletext font • libpng • zlib
• Check if you pressed on the remote control unit. If the indicator on the TV lights up red, press
• Is the AC cord disconnected?
• Check if you pressed on the TV.
• 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.
• 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 illuminating to the remote control sensor?
• Is the image position correct?
• Are screen mode adjustments (WIDE MODE) 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.
• The TV's internal temperature has increased. Remove any objects blocking the vent or clean.
• Is sleep timer set? Set to "Off" by pressing SLEEP on the remote control unit.
• Is "No Signal Off" or "No Operation Off" activated?
• Are connections to external equipment correct?
• Is the correct input source selected?
• Is a non-compatible signal being input?
• Is the 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 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?
• 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.
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Possible Solution
LC-32DH57E/RU/S
.