Sharp LC-22LE250E-V User manual

1
LC-22LE250
LC-24LE250
SERVICE MANUAL
LED LCD COLOUR TELEVISION
160mm
125mm
100mm
80mm
63mm
50mm
40mm
31.5mm
25mm
20mm
A-data-1
sharp.
Corporate Trademark
DVB-T / DVB-C (HDTV), PAL B/G, I / SECAM B/G, D/K, L/L’ SYSTEM COLOUR TELEVISION
In the interests of user safety (required by safety
regulations in some countries) the set should be re-
stored to its original condition and only parts identical
to those specied should be used.
CONTENTS
TABLE OF CONTENTS ....................................................................................................................... 2
ELECTRICAL SPECIFICATIONS ....................................................................................................... 5
IMPORTANT SERVICE SAFETY PRECAUTIONS ................................................................................ 6
OPERATION MANUAL ........................................................................................................................... 9
DIMENSIONS .................................................................................................................................... 12
CAUTION WHEN REMOVE THE REAR CABINET .................................................................................... 14
INTRODUCTION ............................................................................................................................... 17
CIRCUIT DESCRIPTIONS .................................................................................................................. 20
SOFTWARE UPDATE ...................................................................................................................... 54
TROUBLESHOOTING ............................................................................................................................ 55
SERVICE MENU SETTINGS .................................................................................................................... 62
OVERALL WIRING DIAGRAM ................................................................................................................ 67
SCHEMATIC DIAGRAMS ........................................................................................................................ 69
PRINTED WIRING BOARD ............................................................................................................. 80
CABINET AND MECHANICAL COMPONENTS ................................................................................... 81
REPLACEMENT PARTS LISTING ...................................................................................................... 83
Issued: 17th June 2013
SE00LC22LE250
MODEL
LC-22LE250E-/ V/ K/ RU
LC-24LE250E-BK/E-WH
LC-24LE250K-BK/K-WH
LC-24LE250V-BK/V-WH
LC-24LE250RU-BK/RU-WH
This document has been published to
be used for after sales service only.
The contents are subject to change without notice.
SHARP ELECTRONICS (UK) Limited
4 Furzeground Way, Stockley Park
Uxbridge, UB11 1EZ, UK
50231102
LCD COLOUR TELEVISION OPERATION MANUAL
ENGLISH
LC-32LE350E-BK
LC-32LE350E-WH
LC-39LE350E-BK
LC-39LE350E-WH
LCD-FARB-TV BEDIENUNGSANLEITUNG
DEUTSCH
TELEVISIONE A COLORI LCD MANUALE DI FUNZIONAMENTO
ITALIANO
FRANÇAIS
TÉLÉVISEUR LCD COULEUR MODE D'EMPLOI
17MB95S CHASSIS
SHARP CORPORATION

2
LC-24LE250
LC-22LE250
TABLE OF CONTENTS
i SPECIFICATIONS ...................................................................................................................... 5
ii IMPORTANT SERVICE SAFETY PRECAUTIONS .................................................................... 6
iii OPERATION MANUAL .............................................................................................................. 9
iv DIMENSIONS ............................................................................................................................ 12
VCAUTION WHEN REMOVE THE REAR CABINET ................................................................... 14
1. INTRODUCTION ......................................................................................................................... 17
1.1. General Block Diagram .............................................................................................. 18
1.2. MB60 Placement of Blocks ......................................................................................... 19
2. TUNER ....................................................................................................................................... 20
A. ST2156 Terrestrial and Cable TV Tuner
A.1 Description ................................................................................................................. 20
A.2 Features .................................................................................................................... 20
3. AUDIO AMPLIFIER STAGES ……………………………………………………………….….……. 23
A. Main Amplifier (TAS5719) (6-8 W option)............................................................................. 23
a. General Description .................................................................................................... 23
b. Features ...................................................................................................................... 23
c. Pin Descriptions and functions..................................................................................... 24
B. Main Amplifier (TS4962M) (2,5 W. option) ............................................................................ 26
a. General Description..................................................................................................... 26
b. Features ...................................................................................................................... 26
c. Pin descriptions and functions ..................................................................................... 27
C. Headphone Amplifier Stage ................................................................................................ 28
4. POWER STAGE.......................................................................................................................... 29
FDC 642P ................................................................................................................................. 30
a. General Description ..................................................................................................... 30
TPS65251 .................................................................................................................................. 30
a. General Descriptions .................................................................................................... 30
b. Features ....................................................................................................................... 31
MP1484 .................................................................................................................................... 33
a. General Descriptions ................................................................................................... 33
b. Features ....................................................................................................................... 33
APL5910 ................................................................................................................................... 35
a. General Descriptions .................................................................................................. 35
b. Features ...................................................................................................................... 35
LM1117 ..................................................................................................................................... 37
a. General Descriptions .................................................................................................. 37
b. Features Descriptions ................................................................................................. 37

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LC-22LE250
LC-24LE250
5. MICROCONTROLLER –MSTAR MSD8WB9BX ......................................................................... 38
a. General Description ...................................................................................................... 38
b. Features ....................................................................................................................... 39
6. 1Gb. DDR3 SDRAM .................................................................................................................... 42
Hynix H5TQ1G630FA
a. Description ................................................................................................................... 42
b. Features ....................................................................................................................... 42
7. 1Gb G-die DDR3 SDRAM ............................................................................................................ 43
Samsung K4B1G1646G
a. Key Features ...............................................................................................................43
b. Description .................................................................................................................. 44
8. 2Gbit (256M x 8 bit) NAND FLASH MEMORY ..............................................................................45
H27U2G8F2CTR-BC
a. Key Features ............................................................................................................... 45
b. Descriptions ................................................................................................................ 46
9. 16M-BIT (16Mx1) CMOS SERIAL NAND FLASH EEPROM ....................................................... 48
Mx25L1602 Mstar SPI FLASH
a. Key Features .............................................................................................................. 48
b. General Description ................................................................................................... 50
10. USB INTERFACE ....................................................................................................................... 51
USB2512B
a. General Descriptions ................................................................................................. 52
b. Features .....................................................................................................................52
c. Applications ................................................................................................................ 52
11. CI INTERFACE ........................................................................................................................... 53
12. SOFTWARE UPDATE ................................................................................................................ 54
13. TROUBLESHOOTING ................................................................................................................ 55
A. No Backlight Problem .................................................................................................. 55
B. CI Module Problem ........................................................................................................56
C. Staying in Stand-by Mode Problem ...............................................................................58
D. IR Problem .................................................................................................................... 58
E. Keypad Touchpad Problems ......................................................................................... 58
F. USB Problem .................................................................................................................60
G. No Sound Problem ........................................................................................................60
H. Standby On/Off Problem ............................................................................................... 61
I. No Signal Problem ..........................................................................................................61
14. SERVICE MENU SETTINGS ...................................................................................................... 62
15. OVERAL WIRING DIAGRAM ..................................................................................................... 67

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LC-24LE250
LC-22LE250
16. SCHEMATIC DIAGRAMS .......................................................................................................... 69
17. PRINTED WIRING BOARD ....................................................................................................... 80
18. CABINET AND MECHANICAL COMPONENTS ........................................................................ 81
19. REPLACEMENT PARTS LISTING ............................................................................................. 83
20. CABINET AND MECHANICAL PARTS LISTING .......................................................................103

5
LC-22LE250
LC-24LE250
ELECTRICAL SPECIFICATIONS
2
LC-32LE210
LC-32LE220
ELECTRICAL SPECIFICATIONS
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 malfunc-
tion, 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.
Specifications
•As a part of our policy of continuous im-
provement, SHARP reserves the right to
make design and specification changes
for product improvement without prior
notice. The performance specification fig-
ures indicated are nominal values of pro-
duction units. There may be some devia-
tions from these values in individual unit
s.
Environmental Specifications
*1 On-Mode (W) (HOME MODE)
*2 Energy-Save-Mode (W) ECO
*3 Standby-Mode (W)
*4 Off Mode (W)
*5 Annual Energy Consumption (kWh)
*6 Annual Energy Consumption
Energy-Save-Mode (kWh)
ECO
Item 24” LCD COLOUR TV, Model:
LC-24LE210E,
LC-24LE220E
32” LCD COLOUR TV, Model:
LC-32LE210E, LC-32LE220E,
LC-32LB220E, LC-32LS220E
LCD Panel 24" BLACK TFT LCD LED TV 32” BLACK TFT LCD LED TV
Resolution 6.220.800 dots (1.920 x 1.080 pixels)
Video Colour System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
TV
Func-
tions
TV Standard Analogue CCIR (B/G, I, D/K, L/L’)
Digital DVB-T (2K/8K OFDM)(H.264), DVB-C (Only Lx220)
Receiving Channel
VHF/UHF E2–E69 ch, F2–F10 ch, I21–I69 ch, IR A–IR J ch (Digital: IR A ch–E69 ch)
CATV Hyper-band, S1–S41 ch
TV-Tuning System Auto Preset 999 ch: non-Nordic / 9999 ch: Nordic (ATV: 99 ch), Auto Label, Auto Sort
STEREO / BILINGUAL NICAM/A2
Viewing angles H: 176°, V: 176°
Audio Amplifier
Speaker (25 mm x 100 mm) x 2 (30 mm x 100 mm) x 2
Terminals
TV Antenna UHF/VHF 75 Din type (Analogue & Digital)
SERVICE Ø 3.5 mm jack
SCART SCART (AV input, RGB input, TV output, Y/C input)
PC INPUT VGA (D-Sub 15pin), Ø 3.5mm jack
COMPONENTS COMPONENT IN: Y/PB(CB)/PR(CR), RCA (AUDIO R/L)
HDMI1 HDMI, Ø 3.5mm jack
HDMI2 HDMI, Ø 3.5mm jack
HDMI3 HDMI, Ø 3.5mm jack
AV RCA connector (AV input)
MEDIA PLAYER/ TIME-SHIFT/
USB REC
USB 2.0 HOST (A type)
DIGITAL AUDIO OUTPUT RCA S/PDIF digital audio output.
C. I. (Common Interface) EN50221, R206001, CI+ speci cation (Only Lx220)
Headphones Ø 3.5 mm jack (Audio output)
OSD language
Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Italian,
Latvian, Lithuanian, Norwegian, Polish, Portuguese, Russian, Slovak, Slovene, Spanish,
Swedish, Turkish, Ukrainian, Byelorussian, Romanian.
Power Requirement AC 220–240 V, 50 Hz
Power Consumption (IEC62087 Method) 30W (0.25 W Standby) 85W (0.25 W Standby)
Weight 4,9 Kg (Without stand), 6 Kg (With stand) 8,5 Kg (Without stand), 9,8 Kg (With stand)
Operating Temperature 0 °C to +40 °C
*1 Measured according to IEC 62087 Ed. 2.
*2 For further information about the Energy Save function,
please see related pages in this operation manual.
*3 Measured according to IEC 62301 Ed. 1.
*4 Measured according to IEC 62301 Ed. 1.
*5 Annual energy consumption is calculated on the basis
of the On-Mode (HOME MODE) power consumption,
watching TV 4 hours a day, 365 days a year.
*6 Annual energy consumption is calculated on the basis of
the Energy-Save-Mode power consumption, watching TV
4 hours a day, 365 days a year.
32”
63 W
48 W
0.25 W
0.18 W
92 kWh
71 kWh
LCD COLOUR TV, Model:
LC-32LE210E, LC-32LB220E, LC-32LE220E, LC-32LS220E.
32” TFT LCD LED TV
10 W x 2
(30 mm x 100 mm) x 2
85 W (0.25 W (Standby)
8,5 Kg (Without stand), 9,8 Kg (With stand)
English - 9 -
Antenna/Cable Connection
Connect the “aerial” or “cable TV” plug to AERIAL
INPUT (ANT) socket located on the back of the TV.
Aerial or Cable
VGA
SPDIF
HDMI2
Coax.OUT
227528
Notication
Manufactured under license from Dolby Laboratories.
TRADEMARK ACKNOWLEDGMENT
“Dolby” and the double-D symbol are trademarks of
Dolby Laboratories.
“HDMI, the HDMI logo and High-Denition Multimedia
Interface are trademarks or registered trademarks of
HDMI Licensing LLC.”
Information for Users on Disposal of Old
Equipment and Batteries
[European Union only]
These symbols indicate that equipment with these
symbols should not be disposed of as general
household waste. If you want to dispose of the
product or battery, please consider the collection
systems or facilities for appropriate recycling.
Notice: The sign Pb below the symbol for batteries indicates
that this battery contains lead.
Products
Battery
Specication
TV Broadcasting PAL B/G D/K K
Receiving Channels VHF (BAND I/III) - UHF
(BAND U) - HYPERBAND
Number of Preset
Channels
10000
Channel Indicator On Screen Display
RF Aerial Input 75 Ohm (unbalanced)
Operating Voltage 220-240V AC, 50Hz.
Audio German+Nicam Stereo
Audio Output Power
(WRMS.) (10% THD)
2 x 2,5
Power Consumption 50 W
Weight 4,35
TV Dimensions DxLxH
(with foot)
153 x 514 x 352
TV Dimensions DxLxH
(without foot)
35 x 514 x 316
Operation
temperature and
operation humidity:
5ºC up to 45ºC, 85%
humidity max
English - 9 -
Antenna/Cable Connection
Connect the “aerial” or “cable TV” plug to AERIAL
INPUT (ANT) socket located on the back of the TV.
Aerial or Cable
VGA
SPDIF
HDMI2
Coax.OUT
227528
Notication
Manufactured under license from Dolby Laboratories.
TRADEMARK ACKNOWLEDGMENT
“Dolby” and the double-D symbol are trademarks of
Dolby Laboratories.
“HDMI, the HDMI logo and High-Denition Multimedia
Interface are trademarks or registered trademarks of
HDMI Licensing LLC.”
Information for Users on Disposal of Old
Equipment and Batteries
[European Union only]
These symbols indicate that equipment with these
symbols should not be disposed of as general
household waste. If you want to dispose of the
product or battery, please consider the collection
systems or facilities for appropriate recycling.
Notice: The sign Pb below the symbol for batteries indicates
that this battery contains lead.
Products
Battery
Specication
TV Broadcasting PAL B/G D/K K
Receiving Channels VHF (BAND I/III) - UHF
(BAND U) - HYPERBAND
Number of Preset
Channels
10000
Channel Indicator On Screen Display
RF Aerial Input 75 Ohm (unbalanced)
Operating Voltage 220-240V AC, 50Hz.
Audio German+Nicam Stereo
Audio Output Power
(WRMS.) (10% THD)
2 x 2,5
Power Consumption 50 W
Weight 4,35
TV Dimensions DxLxH
(with foot)
153 x 514 x 352
TV Dimensions DxLxH
(without foot)
35 x 514 x 316
Operation
temperature and
operation humidity:
5ºC up to 45ºC, 85%
humidity max
English - 9 -
Antenna/Cable Connection
Connect the “aerial” or “cable TV” plug to AERIAL
INPUT (ANT) socket located on the back of the TV.
Aerial or Cable
VGA
SPDIF
HDMI2
Coax.OUT
227528
Notif cation
Manufactured under license from Dolby Laboratories.
TRADEMARK ACKNOWLEDGMENT
“Dolby” and the double-D symbol are trademarks of
Dolby Laboratories.
“HDMI, the HDMI logo and High-Definition Multimedia
Interface are trademarks or registered trademarks of
HDMI Licensing LLC.”
Information for Users on Disposal of Old
Equipment and Batteries
[European Union only]
These symbols indicate that equipment with these
symbols should not be disposed of as general
household waste. If you want to dispose of the
product or battery, please consider the collection
systems or facilities for appropriate recycling.
Notice:The sign Pb below the symbol for batteries indicates
that this battery contains lead.
Products
Battery
Specif cation
TV Broadcasting PAL B/G D/K K
Receiving Channels VHF (BAND I/III) - UHF
(BAND U) - HYPERBAND
Number of Preset
Channels
10000
Channel Indicator On Screen Display
RF Aerial Input 75 Ohm (unbalanced)
Operating Voltage 220-240V AC, 50Hz.
Audio German+Nicam Stereo
Audio Output Power
(WRMS.) (10% THD)
2 x 2,5
Power Consumption 50 W
Weight 5,20
TV Dimensions DxLxH
(with foot)
153 x 563 x 381
TV Dimensions DxLxH
(without foot)
36 x 563 x 345
Operation
temperature and
operation humidity:
5ºC up to 45ºC, 85%
humidity max
A01_[GB]_MB95S_4847UK_DVBT_C_24205LED_ROCKER_SILVER16_10081844-10083115_50232547_basic IB.indd 9 28.01.2013 15:50:12
English - 9 -
Antenna/Cable Connection
Connect the “aerial” or “cable TV” plug to AERIAL
INPUT (ANT) socket located on the back of the TV.
Aerial or Cable
VGA
SPDIF
HDMI2
Coax.OUT
227528
Notif cation
Manufactured under license from Dolby Laboratories.
TRADEMARK ACKNOWLEDGMENT
“Dolby” and the double-D symbol are trademarks of
Dolby Laboratories.
“HDMI, the HDMI logo and High-Definition Multimedia
Interface are trademarks or registered trademarks of
HDMI Licensing LLC.”
Information for Users on Disposal of Old
Equipment and Batteries
[European Union only]
These symbols indicate that equipment with these
symbols should not be disposed of as general
household waste. If you want to dispose of the
product or battery, please consider the collection
systems or facilities for appropriate recycling.
Notice:The sign Pb below the symbol for batteries indicates
that this battery contains lead.
Products
Battery
Specif cation
TV Broadcasting PAL B/G D/K K
Receiving Channels VHF (BAND I/III) - UHF
(BAND U) - HYPERBAND
Number of Preset
Channels
10000
Channel Indicator On Screen Display
RF Aerial Input 75 Ohm (unbalanced)
Operating Voltage 220-240V AC, 50Hz.
Audio German+Nicam Stereo
Audio Output Power
(WRMS.) (10% THD)
2 x 2,5
Power Consumption 50 W
Weight 5,20
TV Dimensions DxLxH
(with foot)
153 x 563 x 381
TV Dimensions DxLxH
(without foot)
36 x 563 x 345
Operation
temperature and
operation humidity:
5ºC up to 45ºC, 85%
humidity max
A01_[GB]_MB95S_4847UK_DVBT_C_24205LED_ROCKER_SILVER16_10081844-10083115_50232547_basic IB.indd 9 28.01.2013 15:50:12
LC-22LE250 LC-24LE250

6
LC-24LE250
LC-22LE250
LC-20B5E
TO EXPOSED
METAL PARTS CONNECT TO
KNOWN EARTH
GROUND
DVM
AC SCALE
1.5k ohm
10W
0.15 µF
TEST PROBE
SAFETY NOTICE
Many electrical and mechanical parts in LCD television have special safety-related characteristics.
These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarily
increased by using replacement components rated for higher voltage, wattage, etc.
Replacement parts which have these special safety characteristics are identied in this manual; electrical components
having such features are identied by “ “.
For continued protection, replacement parts must be identical to those used in the original circuit.
The use of a substitute replacement parts which do not have the same safety characteristics as the factory recommended
replacement parts shown in this service manual, may create shock, re or other hazards.
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualied service technicians who are thoroughly familiar with all
safety checks and the servicing guidelines which follow:
WARNING
1. For continued safety, no modication of any circuit should be attempted.
2. Disconnect AC power before servicing.
BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)
Before returning the receiver to the user, perform the following safety checks:
1. Inspect all lead dress to make certain that leads are not pinched, and check that hardware is not lodged between the
chassis and other metal parts in the receiver.
2. Inspect all protective devices such as non-metallic control knobs, insulation materials, cabinet backs, adjustment and
compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators, etc.
3. To be sure that no shock hazard exists, check for leakage current in the following manner.
• Plug the AC cord directly into a 220~240 volt AC outlet. (Do not use an isolation transformer for this test).
•Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled by a 0.15µF capacitor in series with all exposed metal
cabinet parts and a known earth ground, such as electrical conduit or electrical ground connected to an earth ground.
•A true RMS reading multimeter should be used for this test, especially where the equipment uses a switch mode
power supply which may result in very non-sinusoidal leakage current.
•Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal cabinet,
screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor.
All checks must be repeated with the AC cord plug connection reversed. (If necessary, a nonpolarized adaptor plug must
be used only for the purpose of completing these checks.)
Any reading of 1.05V peak (this corresponds to 0.7 mA. peak AC.) or more is excessive and indicates a potential shock
hazard which must be corrected before returning the monitor to the owner.
!
CAUTION: FOR CONTINUED PROTECTION AGAINST A RISK OF
FIRE REPLACE ONLY WITH SAME TYPE
FS1, FS2 (T 3.15A L250V)

7
LC-22LE250
LC-24LE250
PRECAUTIONS FOR USING LEAD-FREE SOLDER
1 Using lead-free wire solder
When xing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead
wire solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40°C, we recommend you to
use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our
service station or service branch in your area.
2 Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220°C which is higher than the conventional lead solder by
40°C, and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended
period of time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be
exceeded, remove the bit from the PWB as soon as you conrm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and
off the power of the bit as required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every
use of it.
When the tip of the soldering bit is blackened during use, le it with steel wool or ne sandpaper.
Be careful when replacing parts with polarity indication on the PWB silk.
Lead-free wire solder for servicing.

8
LC-24LE250
LC-22LE250
END OF LIFE DISPOSAL
A. Information on Disposal for Users (private households)
1. In the European Union
Attention: If you want to dispose of this equipment, please do not use the ordinary dust bin!
Used electrical and electronic equipment must be treated separately and in accordance with legislation that requires
proper treatment, recovery and recycling of used electrical and electronic equipment.
Following the implementation by member states, private households within the EU states may return their used
electrical and electronic equipment to designated collection facilities free of charge*. In some countries* your local
retailer may also take back your old product free of charge if you purchase a similar new one.
*) Please contact your local authority for further details.
If your used electrical or electronic equipment has batteries or accumulators, please dispose of these separately
beforehand according to local requirements.
By disposing of this product correctly you will help ensure that the waste undergoes the necessary treatment, recovery
and recycling and thus prevent potential negative effects on the environment and human health which could otherwise
arise due to inappropriate waste handling.
2. In other Countries outside the EU
If you wish to discard this product, please contact your local authorities and ask for the correct method of disposal.
For Switzerland: Used electrical or electronic equipment can be returned free of charge to the dealer, even if you don’t
purchase a new product. Further collection facilities are listed on the homepage of www.swico.ch or www.sens.ch.
B. Information on Disposal for Business Users
1. In the European Union
If the product is used for business purposes and you want to discard it:
Please contact your SHARP dealer who will inform you about the take-back of the product. You might be charged for
the costs arising from take-back and recycling. Small products (and small amounts) might be taken back by your local
collection facilities.
For Spain: Please contact the established collection system or your local authority for take-back of your used
products.
2. In other Countries outside the EU
If you wish to discard of this product, please contact your local authorities and ask for the correct method of disposal.
Attention: Your product
is marked with this
symbol. It means that
used electrical and
electronic products
should not be mixed
with general household
waste. There is a
separate collection
system for these
products.
End of life disposal
The battery supplied with this product contains traces of Lead.
For EU: The crossed-out wheeled bin implies that used batteries should not be put to the general household waste!
There is a separate collection system for used batteries, to allow proper treatment and recycling in accordance with
legislation. Please contact your local authority for details on the collection and recycling schemes.
For Switzerland: The used battery is to be returned to the selling point.
For other non-EU countries: Please contact your local authority for correct method of disposal of the used battery.
28

9
LC-22LE250
LC-24LE250
OPERATION MANUAL
English - 10 -
Viewing remote control
Teletext
Press “”button to enter. Press again to activate mix
mode. Press once more to exit. Follow the instructions
displayed on digital teletext screen.
Digital Teletext (for UK only)
Press “”button to view digital teletext information.
Operate it with the coloured buttons, cursor buttons
and the OK button. The operation method may differ
depending on the contents of the digital teletext. Follow
the instructions displayed on the digital teletext screen.
When the “”button is pressed again, the TV returns
to television broadcast.
TV
1. Standby / On
2. Channel list
3. Volume up-down
4. Menu on/off
5. OK / Confirm
6. Return / Back
7. No Function
8. My button 1 (*)
9. My button 2 (**)
10. Coloured buttons (Red, Green, Yellow, Blue)
11. Mono-Stereo Dual I-II / Current language
12. Fast rewind (in media browser mode)
13. Pause (in media browser mode) / Timeshift recording
14. Programme recording
15. Play (in media browser mode)
16. Stop (in media browser mode)
17. Fast forward (in media browser mode)
18. Subtitle on-off / Subtitle (in media browser mode)
19. Image size
20. Teletext - Mix
21. Media Browser
22. Electronic programme guide
23. Exit
24. Navigation buttons
25. Quick menu On-Off
26. Info / Reveal (in TXT mode)
27. Programme up/down
28. Mute
29. Previous programme / Now (in EPG mode)
30. Numeric buttons
31. AV / Source
NOTE: The Remote Control range is approximately 7m
/ 23ft.
Using My button 1 (*)
Press MY BUTTON 1 for five seconds when on a desired
source, channel or link, until the “MY BUTTON IS SET”
message is displayed on the screen. This confirms that
the selected MY BUTTON is now associated with the
selected function.
Using My Button 2 (**)
Press MY BUTTON 2 for five seconds when on a desired
source, channel or link, until the “MY BUTTON IS SET”
message is displayed on the screen. This confirms that
the selected MY BUTTON is now associated with the
selected function.
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Operation Manual (Continued)
English - 8 -
Viewing the TV
TV Control button & Operation
1.Up direction
2. Down direction
3. Programme/Volume / AV / Standby-On selection
switch
The Control button allows you to control the Volume/
Programme/ Source and Standby-On functions of
the TV.
To change volume: Increase the volume by pushing
the button up. Decrease the volume by pushing the
button down.
To change channel: Press the middle of the button,
the channel information banner will appear on screen.
Scroll through the stored channels by pushing the
button up or down
To change source: Press the middle of the button
twice, the source list will appear on screen. Scroll
through the available sources by pushing the button
up or down.
To turn the TV off: Press the middle of the button down
and hold it down for a few seconds, the TV will turn
into standby mode.
, switch is used for turning the TV on or off.
Standby Notif cations
1) If the TV does not receive any input signal (e.g.
from an aerial or HDMI source) for 5 minutes, the TV
will go into standby. When you next switch-on, the
following message will be displayed: “Standby Cause
No Signal” Press OK to continue.
2) If the TV has been left on and not been operated
for a while, the TV will go into standby. When you next
switch-on, the following message will be displayed.
“Standby Cause No Operation” Press OK to
continue.
Inserting the Batteries into the Remote
Lift the cover on the back of the remote upward
gently. Install two AAA batteries. Make sure to
match the + and - ends of the batteries in the
battery compartment (observe the correct polarity)
Replace the cover.
Connect Power
IMPORTANT:The TV set is designed to operate on
220-240V AC, 50 Hz socket. After unpacking, allow
the TV set to reach the ambient room temperature
before you connect the set to the mains. Plug the
power cable to the mains socket outlet.
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Operation Manual (Continued)
English - 11 -
NOTE:When connecting a device via the YPbPr or Side AV input, you must use a connection cables
to enable connection. See the illustrations above. |
To enable PC audio, you will need to use the SIDE AV
CONNECTION cable’s WHITE & RED inputs. |If an external device is connected via the SCART socket, the TV
will automatically switch to AV mode.|When receiving DTV channels (Mpeg4 H.264) or while in Media Browser
mode, output will not be available via the scart socket. |When using the wall mounting kit (optional), we recommend
that you plug all your cables into the back of the TV before mounting on the wall. |Insert or remove the CI module
only when the TV is SWITCHED OFF. You should refer to the module instruction manual for details of the settings.
Connector Type Cables Device
Scart
Connection
(back)
VGA
Connection
(back)
SIDE AV
SIDE AV
PC/YPbPr
Audio
Connection
(side) Side Audio/Video
Connection Cable
(Supplied)
PC Audio Cable
(Not supplied)
HDMI
Connection
(back)
SPDIF
Connection
(back)
SIDE AV
SIDE AV
Side AV
(Audio/Video)
Connection
(side)
AV Connection Cable
(supplied)
HEADPHONE Headphone
Connection
(side)
PC to YPbPr
YPbPr Video
Connection
(back) PC to YPbPr Connection Cable (Not supplied)
USB
Connection
(side)
CI
Connection
(side)
CAM
module
Viewing the Connections
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DIMENSIONS
English - 20 -
Dimensional Drawings LC-22LE250

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English - 21 -
Dimensional Drawings LC-24LE250
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CAUTION WHEN REMOVE THE REAR CABINET
Speaker wire is quite short, for this reason when remove the rear cabinet the connector
and the wire can be damaged

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Steps to Remove Rear Cabinet :
1.- Remove thes screws
2-- Get up the Rear Cabinet 10 cm maximun
10 cm Maximun

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3-- Remove Speaker Wire
4-- Remove AC Cord

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INTRODUCTION
3
1. INTRODUCTION
17MB95S main board is driven by MStar SOC. This IC is a single chip iDTV solution that
supports channel decoding, MPEG decoding, and media-center functionality enabled by a
high performance AV CODEC and CPU.
Key features includes,
• Combo Front-End Demodulator
• A multi standart A/V format decoder
• The MACEpro video processor
• Home theatre sound processor
• Internet and Variety of Connectivity Support
• Dual-stream decoder for 3D contents
• Mılti-purpose CPU for OS and multimedia
• Peripheral and power management
Supported peripherals are:
• 1 RF input VHF I, VHF III, UHF
• 1 Side AV (CVBS, R/L_Audio)
• 1 SCART socket(Common)
• 1 Side YPbPr
• 1 Side S-Video(Common)
• 1 PC input(Common)
• 3 HDMI input
• 1 Common interface(Common)
• 1 S/PDIF output
• 1 Headphone(Common)
• 2 USB
• 1 Ethernet-RJ45
• 1 External Touchpad(Common)

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1.1 General Block Diagram
54
15. General Block Diagram

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1.2 Placement of Blocks

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CIRCUIT DESCRIPTIONS
4
2. TUNER
A. SI2156 Terrestrial and Cable TV Tuner:
A.1. Description:
The Si2156 integrates a complete hybrid TV tuner supporting all worldwide terrestrial and
cable TV standards. Leveraging Silicon Labs’ field proven digital low-IF architecture, the
Si2156 maintains the unmatched performance and design simplicity of the Si2153 while
further reducing footprint size and bill of materials cost. No external LNAs, tracking filters,
wirewound inductors, or SAW filters are used.
Compared with competing silicon tuners and discrete MOPLL-based tuners, the Si2156
delivers superior picture quality and a higher number of received stations in crowded and
near/far real-world reception conditions. The high linearity and low noise RF front-end
delivers superior blocking performance and higher sensitivity in the presence of strong
undesired channels and interference.
The Si2156 integrates the complete signal path from antenna input to IF outputs for both
analog and digital transmission standards. Compared to traditional discrete MOPLL-based
tuners, the Si2156 eliminates hundreds of external components including external LNAs,
tracking filter varactors and inductors (unlike competing silicon tuners), and SAW filters,
resulting in the simplest, lowest-cost BOM for a hybrid TV tuner.
Interfacing the Si2156 seamlessly with the Si2165 DVB-T/C demodulator creates a
complete terrestrial and cable DVB-T/C receiver plus PAL/SECAM tuner.
A.2. Features:
- Worldwide hybrid TV tuner
- Analog TV: NTSC, PAL/SECAM
- Digital TV: ATSC/QAM, DVB-T/C, ISDB-T/C, DTMB
- 42-1002 MHz frequency range
- Compliance to A/74, NorDig, D-Book, C-Book, ARIB, EN55020, OpenCable™
specifications
- Best-in-class real-world reception
- Exceeds discrete MOPLL-based tuners
- Highly integrated, lowest BOM
- No SAW filters or wirewound inductors required
- Integrated LNAs and complete tracking filters