Sharp LC-32LE40E User manual

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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.
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
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

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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

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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.

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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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Environmental Specifications
*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 (Standard) 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.
NOTE
• The power consumption of On-Mode varies depending on the images the TV displays.

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[2] OPERATION MANUAL
Remote Control

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TV (Front)
TV (Side/Rear)

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Preparation
Supplied Accessories
Mount the TV base
1. Put the TV with its face down on a safe surface covered by a soft and smooth cloth. 2. Adjust the TV base to the bottom of the TV. Please be sure the
arrow heads are facing front.
3. Fasten the screws by using a cross-head screwdriver (not supplied).
NOTE
• To detach the TV stand, do these steps in reverse order.
Wall Mounting
TV screen size VESA-compatible wall bracket
(W x H) Screw type (Metric)
32” 200 x 100 mm 4 x 10 mm
42” 400 x 400 mm 4 x 10 mm
Note
• At the time of purchasing wall bracket, please check if there is enough space between the wall bracket and TV terminals for the terminal connection

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Preparation
Installing Batteries in the Remote Control Unit
1 Insert two AAA batteries into remote control. Make sure the (k) and (l) ends are facing correct direction.
2Replace the cover.
NOTE
• If you are not going to use the remote control for a long time, remove the batteries to avoid damaging remote control caused by chemical leakage.
CAUTION
Improper use of batteries can result in chemical leakage or explosion. Be sure to follow the instructions below:
• Do not mix batteries of different types. Different types of batteries have different characteristics.
• Do not mix old and new batteries. Mixing old and new batteries can shorten the life of new batteries or cause chemical leakage in old batteries.
• Remove batteries as soon as they have worn out. Chemicals that leak from batteries can cause a rash. If you find any chemical leakage, wipe thoroughly
with a cloth.
• The batteries supplied with this product may have a shorter life expectancy due to storage conditions.
Note on disposing batteries:
The batteries provided contain no harmful materials such as cadmium, lead or mercury.
Regulations concerning used batteries stipulate that batteries may no longer be thrown out with the household rubbish. Deposit any used batteries free of
charge into the designated collection containers set up at commercial businesses.
Using the Remote Control Unit
Use the remote control unit by pointing it towards the remote control sensor. Objects between the remote control unit and sensor may block proper
operation.

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Appendix
Troubleshooting
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.
Acknowledgements
The following open source software components are included in this product:
Linux kernel/Modutils/Glibc/Zlib/Libpng

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[3] DIMENSIONS

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CHAPTER 2. REMOVING OF MAJOR PARTS
[1] ASSY/PANEL REMOVAL
LC-32LE40E
Note: Put the TV face down on a safe surface that is covered by a soft and smooth cloth to avoid damaging LCD Panel.
Front View
Fig 1
Back View
Fig 2
Step 1. Remove the base.
A. Remove 3 screws as fig 3 and put out the base.
Fig 3

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B. Remove 4 screws as Fig 4 to detach the stand.
Fig 4
Step 2. Remove the rear cover.
Remove 16 screws as Fig 5
Fig 5
Step 3. Remove the bkt_stand.
Remove 4 screws as Fig 6

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Fig 6
Step 4. Remove the power board.
Remove 6 screws and unplug 2 cables as Fig 7
Fig 7

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Step 5. Remove the scaler board.
Remove 6 screws and unplug 4 cables as Fig 8
Fig 8
Step 6. Remove the speakers(L/R).
Remove as Fig 9 and Fig 10
Fig 9
Fig 10

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Step 7. Remove the bkt_panel and separate the panel and bezel.
Remove 10 screws as Fig 11
Fig 11
Step 8. Bezel assy.
The bezel assy as Fig 12
Fig 12

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LC-42LE40E
Note: Put the TV face down on a safe surface that is covered by a soft and smooth cloth to avoid damaging LCD Panel.
Front View
Fig 1
Back View
Fig 2
Step 1. Remove the base.
A. Remove 4 screws as fig 3 and put out the base.
Fig 3

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B. Remove 4 screws as Fig 4 to detach the stand.
Fig 4
Step 2. Remove the rear cover.
Remove 19 screws as Fig 5
Fig 5
Step 3. Remove the bkt_stand.
Remove 4 screws as Fig 6

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Fig 6
Step 4. Remove the power board.
Remove 6 screws and unplug 2 cables as Fig 7
Fig 7

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Step 5. Remove the scaler board.
Remove 6 screws and unplug 4 cables as Fig 8
Fig 8
Step 6. Remove the speakers(L/R).
Remove as Fig 9 and Fig 10
Fig 9
Fig 10