Sharp LC-26SB25E, Service Manual

Page: 9 / 172

2008-03-14
LC-26SB25E/S/RU, LC-32SB25E/S/RU, LC-42SB55E/S/RU
9
Appendix
troubleshooting
problem possible Solution
No picture 1. Connect power cord correctly.
2. Turn on power.
3. Connect signal cable correctly.
4. Press any button on the LCD TV.
Abnormal colours Connect signal cable correctly.
Twisted picture 1. Connect signal cable correctly.
2. Please use compatible signal.
Picture too dark Adjust brightness and contrast.
Audio only, no images 1. Please check if input signal is connected correctly.
2. TV-RF signal must not be lower than 50dB.
Picture only, no audio 1. Connect signal cable correctly.
2. Adjust volume to proper level.
3. Connect audio signal cable correctly.
4. TV-RF signal must not be lower than 50dB.
Cannot use remote control 1. Please change battery.
2. Turn off power for 10 seconds; and then restart power.
Cannot receive sufficient channels
through antenna
Please use the Channel scan function to increase the number of channels not included in memory.
No colours Please adjust the colour setup
Blinking picture accompanied by ghost
image
1. Check the connection of antenna/signal cable.
2. Check if channel is in play mode.
3. Press signal source and change input mode.
Broken lines or segments
Adjust antenna.
Keep the TV away from noise sources, such as automobiles, neon lights, and hair dryers.
Certain TV channels are blocked (Hope to
acquire some channels)
Please use the Update scan method to add the channels not included in memory
Overlapping images or ghost images Please use multi-directional outdoor antenna. (If your TV is subject to the influence of nearby mountains or
buildings).
Cannot use a function If the item you choose turns gray, that item cannot be selected.
Cannot receive programs Please use the Update scan method to add the channels not included in memory.
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?
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.
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: +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 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.sharp-eu.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:
•linuxkernel•modutils•glibc•zlib•libpng