DOWNLOAD Sharp LC-42LE40E Service Manual ↓ Size: 12.63 MB | Pages: 127 in PDF or view online for FREE

Model
LC-42LE40E
Pages
127
Size
12.63 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-42le40e.pdf
Date

Sharp LC-42LE40E Service Manual ▷ View online

LC-32LE40E-LC-42LE40E 
SERVICE MANUAL 
                                                                        
LCD COLOUR TELEVISION 
 
 
LC-32LE40E 
MODEL     
LC-42LE40E
 
 
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its orig- 
inal condition and only parts identical to those specified should be used. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Parts marked with " 
 " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the 
safety and performance of the set. 
 
 
 
SAFETY PRECAUTION 
IMPORTANT SERVICE SAFETY PRECAUTION ..................2
PRECAUTIONS FOR USING LEAD-FREE SOLDER ...........3
 
CHAPTER 1. OPERATION MANUAL 
[1] SPECIFICATIONS ............................................................4
[2] OPERATION MANUAL .....................................................6
[3] DIMENSIONS .................................................................11
 
CHAPTER 2. REMOVING OF MAJOR PARTS 
[1] ASSY/PANEL REMOVAL................................................12
[2] SET RE-ASSEMBLY.......................................................22
 
CHAPTER 3. ADJUSTMENT PROCEDURE 
[1] ADJUSTMENT PROCEDURE ........................................23
[2] SOFTWARE UPGRADE PRODUCE ..............................35
 
CHAPTER 4. TROUBLESHOOTING TABLE 
[1] TROUBLESHOOTING TABLE .......................................41
 
CHAPTER 5. MAJOR IC INFORMATIONS 
[1] MAJOR IC INFORMATION .............................................50
[2] DETAIL ICs INFORMATION ...........................................62
CONTENTS
CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM 
[1] BLOCK DIAGRAM ..........................................................72
[2] WIRIGN DIAGRAM ……..................................................74
 
CHAPTER 7. PRINTED WIRING BOARD 
[1] MAIN UNIT PRINTED WIRING BOARD …..……............76
[2] POWER UNIT PRINTED WIRING BOARD ....................78
[3] KEY UNIT PRINTED WIRINGBOARD ............................82
[4] IR UNIT PRINTED WIRING BOARD ..............................82
 
CHAPTER 8. SCHEMATIC DIAGRAM 
[1] MAIN SCHEMATIC DIGRAM .........................................83
[2] POWER SCHEMATIC DIGRAM .....................................96
[3] KEY SCHEMATIC DIGRAM …………….......................101
[4] IR SCHEMATIC DIGRAM ..........................
................
...102
 
CHAPTER 9. PARTS GAUILD 
[1] SPARE PARTS LIST .........................
.........................
..103
[2] CABINET PARTS .........................................
..............
..151
[3] PACKING PARTS ………………………………………155
SHARP 
SHARP CORPORATION
LC-32LE40E-LC-42LE40E 
SAFETY PRECAUTION 
IMPORTANT SERVICE SAFETY PRECAUTION 
 
 
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the 
servicing guidelines which follow:
 
 
 WARNING 
1.  For continued safety, no modification of any circuit should be 
attempted. 
2.  Disconnect AC power before servicing.
 
 
CAUTION: 
FOR CONTINUED PROTECTION AGAINST A 
RISK OF FIRE REPLACE ONLY WITH SAME 
TYPE FUSE. 
F9901/F9902 (6.3A/250V)
 
 
 BEFORE RETURNING THE RECEIVER 
(Fire & Shock Hazard)
 
Before returning the receiver to the user, perform the following 
safety checks:
 
3.  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. 
4.  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. 
5.  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. 
•   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. 
•  Use an AC voltmeter having with 5000 ohm per volt, or higher, sen- 
sitivity or measure the AC voltage drop across the resistor. 
•  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 1.05 V 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.
 
 
 
DVM 
AC SCALE 
1.5k ohm 
10W 
 
 
 
0.15 µF 
TEST PROBE 
 
TO EXPOSED 
METAL PARTS 
 
 
 
 
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 
SAFETY NOTICE  
Many electrical and mechanical parts in LCD color 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 identified in this manual; electrical components having such 
features are identified by “ 
 
” and shaded areas in the 
Replacement Parts List and Schematic Diagrams. 
 
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, fire or other hazards. 
 
 
 
 
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 
 
CONNECT TO KNOWN 
EARTH GROUND 
LC-32LE40E-LC-42LE40E 
PRECAUTIONS FOR USING LEAD-FREE SOLDER 
 Using lead-free wire solder 
•  When fixing 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. 
 
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 confirm 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, file it with steel wool or fine sandpaper. 
 
•  Be careful when replacing parts with polarity indication on the PWB silk. 
 
LC-32LE40E-LC-42LE40E 
CHAPTER 1. 
OPERATION MANUAL
 
[1] SPECIFICATIONS 
 
Item  
32” LCD COLOUR TV  
Model: LC-32LE40E  
42” LCD COLOUR TV  
Model: LC-42LE40E  
LCD screen size  
32” diagonal  
42” diagonal  
Number of dots  
3,147,264 dots (1366 x 768 x 3 dots)  
6,220,800 dots (1920 x 1080 x 3 dots)  
Video Colour System  
PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60 
 
TV Function  
TV-Standard 
Analogue  
CCIR (B/G, I, D/K, L/L’) 
 
Digital  
DVB-T (2K/8K OFDM), DVB-C 
 
Receiving 
Channel  
VHF/UHF  
ATV: IRA-E69, DVB-T: E5-E69 
 
CATV  
S-band, S1–S41ch 
 
TV-Tuning System  
Auto Preset 1599 ch, Auto Label, Auto Sort  
Stereo/Bilingual  
NICAM/A2  
Audio amplifier  
10 W x 2  
10 W x 2  
Speaker  
132(H) x 27(W) x 26(D) mm 
 
132(H) x 27(W) x 26(D) mm 
 
Rear  
ANTENNA  
UHF/VHF 75 Ω  
RS-232C  
D-sub 9 pin male connector  
SCART  
SCART (AV input, Y/C input, RGB input, TV output ) 
 
PC IN  
D-sub 15 pin (AV input), Ø 3.5mm jack (Audio input) 
 
COMPONENT  
Y/Pb(Cb)/Pr(Cr), RCA pin (L/R) 
 
SPDIF OUT  
Digital audio output  
AV OUT  
RCA pin (AV output)  
HDMI 1  
Digital video and audio input, ARC  
HDMI 2  
Digital video and audio input  
Side  
C. I. (Common Interface)  
EN50221, R206001, CI Plus specification  
AV IN  
RCA pin (AV input)  
USB  
Software update, multi-media play 
 
HEADPHONE  
Ø 3.5mm jack (Audio output)  
OSD Language  
English, German, French, Italian, Dutch, Spanish, Greek, Portuguese, Swedish, 
Finnish, Russian, Polish, Turkish, Hungarian, Czech, Slovak, Danish, Norwegian, 
Estonian, Latvian, Lithuanian, Slovenian, Bulgarian, Croatian, Romanian, Serbian, 
Ukrainian, Gaelic, Belarussian.  
Power Requirement  
AC 220–240 V, 50 Hz 
 
Power Consumption  
59 W (Standby < 0.3W) (Method 
IEC62087)  
93 W (Standby < 0.3W) (Method 
IEC62087)  
Weight  
8.2 kg (Without stand), 9.4 kg (With 
stand)  
12.79 kg (Without stand), 15.72 kg 
(With stand)  
Operating temperature  
0°C to +40°C 
 
 
•  As a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without 
prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in 
individual units. 
 
NOTE  
• Refer to the inside back cover for dimensional drawings.  
• Audio cannot be output through the HDMI terminal.
 
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Sharp LC-42LE40E Service Manual ▷ Download

  • DOWNLOAD Sharp LC-42LE40E Service Manual ↓ Size: 12.63 MB | Pages: 127 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp LC-42LE40E in PDF for free, which will help you to disassemble, recover, fix and repair Sharp LC-42LE40E LCD. Information contained in Sharp LC-42LE40E 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.