Troubleshooting; Information On The Software License For This Product; Software Composition; Obtaining Source Code - Sharp LC-32A28L Service Manual

LC-32A28L, LC-42A48L
Appendix

troubleshooting

problem
No power
Unit cannot be operated
Remote control unit does not operate
Picture is cut off /with sidebar screen
Strange color, light color, or color misalignment
Power is suddenly turned off
No picture
No sound
The TV sometimes makes a cracking sound
1. When a lamp in LCD panel is broken and the
protector circuit in inverter operates and we
tune on the this set, LED keep red? or Green?
2. Service man only change the lamp in LCD
panel?
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: -4°F to +140°F (-20°C to +60°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 GNU
General Public License (hereafter GPL), a GNU Lesser General Public License (hereafter LGPL) or other license Agreement.

obtaining source code

Some of the open source software licensors require the distributor to provide the source code with the executable software components. GPL and
LGPL include similar requirements. For information on obtaining the source code for the open source software and for obtaining the GPL, LGPL, and
other license agreement information, visit the following website:
http://www.sharpusa.com/gpl
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:
• linux kernel/busybox/uClibc/zlib/libpng/libjpeg
CLEARING THE SECRET NUMBER
1. Press MENU to display the MENU screen, and then press ▲/▼ to select "Parental" and press ► to enter it.
2. Press 0000 as a master code, and then press ▲/▼ to select "Change Password" and press ► to enter it.
possible Solution
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?
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.
1. Is the SOURCE set correctly? Set it to the TV setting position.
2. Are batteries inserted with polarity (+, -) aligned?
3. Are batteries wron out?
4. Are you using it under strong or fluorescent lighting?
5. Is a fluorescent light illuminated near the remote control sensor?
1. Are screen mode adjustments such as picture size made correctly?
1. Adjust the picture tone.
2. Is the room too bright? The picture may look dark in a room that is too bright.
3. Check the input signal setting.
1. Is the sleep timer set?
2. The unit's internal temperature has increased. Remove any objects blocking vent.
1. Is connection to other components correct?
2. Is correct input signal source selected after connection?
3. Is the correct input selected?
4. Is picture adjustment correct?
1. Is the volume too low?
2. Have you pressed MUTE on the remote control unit?
1. This is not malfuntion. This happens when the cabinet slightly expands and contracts according to change in
temperature. This does not affect the TV's performance.
1. If the lamp(s) is(are) broken, panel inverter will not kick on the lamps, so TV set phenomena will be "no picture
on display."
But the TV system is still working, that is the RC can also control LED.
When AC power on, the LED will keep last status and when use RC DC power on, the LED will keep green light.
2. The failed panel should be sent back to Panel maker (CMO) via RMA process.
Panel maker (CMO) will not rework the lamps at customer's side since the repaired panel should be checked
through regular inspection flow to secure the quality.
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