LC-39LE751EK (serv.man3) - Sharp TV Service Manual (repair manual)

lc-39le751ek (serv.man3) service manual
Model
LC-39LE751EK (serv.man3)
Pages
127
Size
21.94 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-39le751ek-sm3.pdf
Date

Read Sharp LC-39LE751EK (serv.man3) Service Manual online

1
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
MODELS
LC-39LE750E/V
LC-39LE751E/K/RU/V
LC-39LE752E/V
LC-50LE750E/V
LC-50LE751E/K/RU/V
LC-50LE752E/V
SERVICE MANUAL
  LED LCD 
COLOUR TELEVISION
Wi-Fi  & 3D Ready / DVB-T / T2 / C / S / S2  PAL
 
B/G, I 
/ SECAM
 B/G, D/K, L/L’ 
SYSTEM COLOUR TELEVISION
SHARP  CORPORATION
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
ELECTRICAL SPECIFICATIONS ........................................................................................  2
IMPORTANT SERVICE SAFETY PRECAUTIONS .........................................................................   4
OPERATION MANUAL ....................................................................................................................   6
DIMENSIONS .................................................................................................................... 23
REMOVING OF MAJOR PARTS .....................................................................................................  24
SERVICE ADJUSTMENTS .............................................................................................................  33
PUBLIC MODE ....................................................................................................................................    44
SOFTWARE UPGRADING .............................................................................................................  47
MAJOR ICs INFORMATION .....................................................................................................  48
BLOCK DIAGRAMS .....................................................................................................................  63
SCHEMATIC DIAGRAMS .......................................................................................................  66
PRINTED WIRING BOARDS .........................................................................................................  114
REPLACEMENT PARTS LIST .......................................................................................................  121
CABINET AND MECHANICAL PARTS ............................................................................................  160
PACKING OF THE SET .......................................................................................................................  164
                       Issued: 30
th 
August 2013
L
L
L
L
L
L
SE00LC39LE750
LC-39LE750E/V  (B)
LC-39LE751E/K/RU/V (B)
LC-39LE752E/V  (B)
LC-50LE750E/V (B)
LC-50LE751E/K/RU/V (B)
LC-50LE752E/V
2
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
ELECTRICAL SPECIFICATIONS
Specifications
Item
39” LCD COLOUR 
TV, Models: 
LC-39LE750E/RU/V 
LC-39LE751E/K/RU/V
LC-39LE752E/RU/V
LC-39LE754E/RU/V
LC-39LU751E
LC-39LM752E/V
LC-39LK752E
LC-39LX752E
50” LCD COLOUR 
TV, Models: 
LC-50LE750E/RU/V 
LC-50LE751E/K/RU/V
LC-50LE752E/RU/V
LC-50LE754E/RU/V
LC-50LU751E
LC-50LM752E/V
LC-50LK752E
LC-50LX752E
60” LCD COLOUR 
TV, Models: 
LC-60LE751E/K/RU/V
LC-60LE752E/RU/V
LC-60LE754E/RU/V
LC-60LU751E
LC-60LM752E
LC-60LK752E
LC-60LX752E
70” LCD COLOUR TV, 
Models: 
LC-70LE751E/K/RU 
LC-70LE752E/RU
LC-70LE754E/RU
LCD Panel (LED TV)
39” BLACK TFT
50” BLACK TFT
60” BLACK TFT
70" BLACK TFT
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, DVB-C2 (LE754 only), DVB-T2(LE751/754 only), 
DVB-S/S2 (LE752/754 only) 
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 Ampli¿ er
15 W + 15 W (Music power)
Speaker
(96 mm x 30mm) x 2
Terminals
TV Antenna
VHF/UHF
UHF/VHF 75 Ÿ Din type (Analogue & Digital)
Satellite (752/754 
series only)
75 Ÿ F type (DVB-S/S2)
SERVICE
Ø 3.5 mm jack
SCART
SCART (AV input, RGB input, TV output, Y/C input)
PC INPUT
VGA  (D-Sub 15pin), Ø 3.5 mm jack (shared with HDMI)
COMPONENTS
COMPONENT IN: Y/PB(CB)/PR(CR), RCA (AUDIO R/L)
HDMI1
HDMI, Ø 3.5 mm jack (shared with PC INPUT), ARC, 3D.
HDMI2
HDMI, Ø 3.5 mm jack (shared with PC INPUT), 3D.
HDMI3 
HDMI, Ø 3.5 mm jack (shared with PC INPUT), 3D.
HDMI4 
HDMI, Ø 3.5 mm jack (shared with PC INPUT), 3D.
USB 1
USB 2.0 HOST (A Type) 
USB 2 
USB 2.0 HOST (A type)
USB 3  (WIFI) 
USB 2.0 HOST (A type) (Wi-Fi use only)
ETHERNET (10/100)
Network connector
AV
RCA connector (AV input)
S/PDIF OUT
RCA S/PDIF digital audio output.
C. I. (Common Interface)
EN50221, R206001, CI+ speci¿ cation
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, Croatian, Serbian.
Power Requirement
AC 220–240 V, 50 Hz
Power Consumption (IEC62087 Method)
99W 
(0.24W Stby)
121W 
(0.24W Stby)
175W 
(0.24W Stby)
229W 
(0.24W Stby)
Weight
10.7Kg (Without stand) 
12.3 Kg (With stand)
16.7Kg (Without stand) 
18.5Kg (With stand)
24.3Kg (Without stand) 
27Kg (With stand)
37.5Kg (Without stand) 
40.5Kg (With stand)
Operating Temperature
0 °C to +40 °C
3
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
DIFFERENCES (B) SUFFIX
Parts Name/ Description
LC39/50LE750/751/752 
LC39/50LE750/751/752   (B)
Remarks
Main Unit LE750
DUNTKG135FM04
DSETKG135WE02
Fully interchangeable
Main Unit LE751
DUNTKG135FM08
DSETKG135WE05
Fully interchangeable
Main Unit LE752
DUNTKG135FM07
DSETKG135WE01
Fully interchangeable
Serial number
Starts from:
xxxx11112 
Starts from:
xxxx31112 
Important notes for servicing:
• 
The only difference between models with “B” suffi x and without suffi x is the Main Unit.
• 
Both Main Units are fully interchangeable.
• 
When you need to order the Main Unit for models with (B) suffi x, you have to  order tuner shields code also as is 
shown below:
 
 
LE750  (B) series
 
DSETKG135WE02 + PSLDMB855WJFW + PSLDMB856WJFW
 
LE751  (B) series
 
DSETKG135WE05 + PSLDMB855WJFW + PSLDMB856WJFW
 
 
LE752 (B) series
 
DSETKG135WE01 + PSLDMB855WJFW + PSLDMB856WJFW + RTUDSA034WJQZ
• 
When you need to order the Main Unit for models without (B) suffi x you have to  order  the Main Unit code as is 
shown below:
 
 LE750 
series
 DUNTKG135FM04 
 
 LE751 
series
 DUNTKG135FM08 
 LE752 
series
 DUNTKG135FM07
4
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
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  F101 (T4 AH / 250V)
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Here you can read online and download Sharp LC-39LE751EK (serv.man3) Service Manual in PDF. LC-39LE751EK (serv.man3) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp LC-39LE751EK (serv.man3) LCD. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.