DOWNLOAD Sharp LC-24LE240EK Service Manual ↓ Size: 18.35 MB | Pages: 84 in PDF or view online for FREE

Model
LC-24LE240EK
Pages
84
Size
18.35 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-24le240ek.pdf
Date

Sharp LC-24LE240EK Service Manual ▷ View online

1
LC-24LE240
SERVICE MANUAL
  LED LCD 
COLOUR TELEVISION
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 specifi ed should be used.
CONTENTS
TABLE OF CONTENTS .......................................................................................................................      2
ELECTRICAL SPECIFICATIONS .......................................................................................................      5
IMPORTANT SERVICE SAFETY PRECAUTIONS  ................................................................................      7 
OPERATION MANUAL ...........................................................................................................................      9
DIMENSIONS .....................................................................................................................................   13 
INTRODUCTION ..................................................................................................................................   14
CIRCUIT DESCRIPTIONS ..................................................................................................................   17
SERVICE MENU SETTINGS ...........................................................................................................   49
SOFTWARE UPDATE ............................................................................................................................   53
TROUBLESHOOTING .....................................................................................................................  54
OVERAL WIRING DIAGRAM ...........................................................................................................  63
SCHEMATIC DIAGRAMS ................................................................................................................  64
PRINTED WIRING BOARD .......................................................................................................................   74
REPLACEMENT PARTS LISTING ............................................................................................... 75
CABINET AND MECHANICAL PARTS ...................................................................... 81
                       Issued: 4th May 2012
SE00LC24LE240E
MODEL
LC-24LE240E
LC-24LE240EK
LC-24LE240EV
   17MB62 
CHASSIS
SHARP  CORPORATION
2
LC-24LE240
TABLE OF CONTENTS
ELECTRICAL SPECIFICATIONS 
 
..........................................................................5
IMPORTANT SERVICE SAFETY PRECAUTIONS....................................................7
OPERATION MANUAL...............................................................................................9
DIMENSIONS.............................................................................................................13 
INTRODUCTION........................................................................................................14
 
General Block Diagram ..............................................................................15
 
MB62 Placement of Blocks ....................................................................16
CIRCUIT DESCRIPTIONS ....................................................................................17
 Tuner 
...........................................................................................17
 Audio 
Amplifi 
er Stage with AZAD2102(U163, U164).......................19
 Audio 
Amplifi er Stage with TPA3113(U168) ...........................................22
 
Power Stage ................................................................................................24
 Microcontroller-MSTAR(U5) 
..........................................................................29
 
CI Interface ..............................................................................................34
 
USB Interface ...........................................................................................34
 
DDR2 SDRAM K4T1G164QF (U155) ...................................................35
 
Scaler and LVDS Sockets .....................................................................37
 
SPI Flash Memory-MX25L1005 (U158)................................................38
 
NAND Flash Memory- NAND512XXA2C (U162)...........................................40
 
MP2012 (U176) .........................................................................................42
 
RTA8283A (U23,U173) .....................................................................................43
 
MP1583 (U174) .......................................................................................44
 
LM1117(U175, U180, U181)...........................................................................45
 FDC642.....................................................................................................46
 FDC604P.....................................................................................................47
SERVICE MENU SETTINGS.................................................................................49
SOFTWARE UPDATE .............................................................................................53
TROUBLESHOOTING.......................................................................................54
OVERALL WIRING DIAGRAMS.............................................................................63
SCHEMATICS DIAGRAMS......................................................................................64
PRINTED WIRING BOARD.....................................................................................74
PARTS LISTING......................................................................................................75
CABINET AND MECHANICAL PARTS...................................................................81
 
3
LC-24LE240
Digital
Reception
MHEG-5 ENGINE compliant with ISO/IEC 13522-5 UK engine Profi le 1
for UK
Object carousel support compliant with ISO/IEC 135818-6 and UK DTT profi le
Frequency range: 474-850 MHz  for UK  models
170-862 MHz for EU models
Transmission standard: DVB-T. MPEG-2, MPEG-4
Demodulation: COFDM with 2K/8K FFT mode
FEC: all DVB modes
Video: MP@ML, PAL, 4:3/16:9
Audio: MPEG Layer I&II 32/44.148kHz.
A01_MB62_[GB]_1910UK_IDTV_TC_PVR_BRONZE19_24942LED_ROCKER_ZIGGO_10077476_50211339.indd 38
15.03.2012 16:27:33
Cautions regarding use in high and low temperature environments
•  When the unit is used in a low temperature space (e.g. room, offi ce), 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
.
•  As a part of our policy of continuous im-
provement, SHARP reserves the right to 
make design and specifi cation  changes 
for product improvement without prior 
notice. The performance specifi cation fi g-
ures indicated are nominal values of pro-
duction units. There may   be some devia-
tions from these values in individual units.
Digital Reception (DVB-C)
Transmission Standards: 
DVB-C, MPEG2, DVB-C, MPEG4
i. DEMODULATION 
-Symbolrate: 4.0 Msymbols/s to 7.2 Msymbols/s
- Modulation: 16-QAM , 32-QAM ,64-QAM, 128-QAM 
and 256-QAM
ii. VIDEO
- All MPEG2 MP@ML formats with up-conversion and 
fi ltering to CCIR601 format.
-CVBS analogue output
iii. AUDIO 
-All MPEG1 Layer 1 and 2 modes
-Sampling frequencies supported are 32, 44.1 & 48 
kHz
Specifi cations
TV BROADCASTING
PAL/SECAM B/G D/K K’ I/I’ L/L’
RECEIVING CHANNELS
VHF (BAND I/III)
UHF (BAND U)
HYPERBAND
NUMBER OF PRESET CHANNELS
1000
CHANNEL INDICATOR
On Screen Display
RF AERIAL INPUT
75 Ohm (unbalanced)
OPERATING VOLTAGE
220-240V AC, 50Hz.
AUDIO
German + Nicam Stereo
AUDIO OUTPUT POWER (W
RMS.
) (10% THD) 
2 x 2,5
POWER CONSUMPTION (W)
50 W (max)
< 0,5 W
 (Standby)
PANEL
16:9 display, 
24” (60 cm)
 Screen Size
DIMENSIONS (mm)
DxLxH (With foot): 
149 x 580,4 x 404,8
Weight (Kg): 
5,65
DxLxH (Without foot): 
35,5 x 580,4 x 379,6
Weight (Kg): 
5,00
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15.03.2012 16:27:33
ELECTRICAL SPECIFICATIONS
4
LC-24LE240
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 identifi ed in this manual; electrical components 
having such features are identifi 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, fi re or other hazards.
IMPORTANT SERVICE SAFETY PRECAUTION
Service work should be performed only by qualifi ed service technicians who are thoroughly familiar with all 
safety checks and the servicing guidelines which follow:
WARNING
1. For continued safety, no modifi 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  
 F700, 
F701
 
(T 3.15A L250V)
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  • DOWNLOAD Sharp LC-24LE240EK Service Manual ↓ Size: 18.35 MB | Pages: 84 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp LC-24LE240EK in PDF for free, which will help you to disassemble, recover, fix and repair Sharp LC-24LE240EK LCD. Information contained in Sharp LC-24LE240EK Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.