Sharp Lc 32le340m Maintenance Manual

							 
SERVICE MANUAL
LC-32LE240M/340M(1stEdition)
No. SY1V132LE340M
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 PRE-
CAUTION ............................................................i
PRECAUTIONS FOR USING LEAD-FREE 
SOLDER ............................................................ ii
OUTLINE
MAJOR SERVICE PARTS ................................ iii
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS ......................................... 1-1
CHAPTER 2. OPERATION MANUAL
[1] OPERATION MANUAL .................................. 2-1
CHAPTER 3. REMOVING OF MAJOR PARTS
[1]  REMOVING OF MAJOR PARTS ................... 3-1
CHAPTER 4. ADJUSTMENT
[1] ADJUSTMENT PROCEDURE ....................... 4-1
[2]  USB Clone (Smart Loader) ............................ 4-7
[3]  PUBLIC MODE SETTING PROCEDURE........ 4-8CHAPTER 5. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE ...................... 5-1
CHAPTER 6. OVERALL WIRING/BLOCK DIAGRAM
[1]  OVERALL WIRING DIAGRAM ...................... 6-1
[2]  SYSTEM BLOCK DIAGRAM ......................... 6-2
CHAPTER 7. PRINTED WIRING BOARD ASSEM-
BLIES
[1] MAIN Unit ...................................................... 7-1
CHAPTER 8. SCHEMATIC DIAGRAM
[1]  DESCRIPTION OF SCHEMATIC DIA-
GRAM ............................................................ 8-1
[2] MAIN Unit ...................................................... 8-2
Parts Guide
TopPage
CONTENTS
LCD COLOUR TELEVISION
LC-32LE240M
LC-32LE340M
MODELS
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. 
						

							LC-32LE240M/340M(1stEdition)
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SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRECAUTION
„WA R N I N G
1. For continued safety, no modification 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:
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 110-240 volt AC outlet.
• Using two clip leads, connect a 1.5k ohm, 10 watt resistor paral-
leled by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as electrical conduit or elec-
trical 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 0.74 Vrms (this corresponds to 0.5 mA rms AC.) or
more is excessive and indicates a potential shock hazard which
must be corrected before returning the monitor to the owner.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
SAFETY NOTICE
Many electrical and mechanical parts in LCD colour 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.
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the 
servicing guidelines which follow: 
DVM
AC SCALE
1.5k ohm
10W
TO EXPOSED
METAL PARTSCONNECT TO
KNOWN EARTH
GROUND
0.15µF
TEST PROBE 
						

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ii
PRECAUTIONS FOR USING LEAD-FREE SOLDER
„Employing lead-free solder
• “PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The
alphabetical character following LF shows the type of lead-free solder. 
Example:
„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 dam-
age 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.
Lead-free wire solder for servicingIndicates lead-free solder of tin, silver and copper. Indicates lead-free solder of tin, silver and copper.
PARTS CODEPRICE 
RANKPART 
DELIVERYDESCRIPTION
ZHNDAi123250E BL Jφ0.3mm 250g (1roll)
ZHNDAi126500E BK Jφ0.6mm 500g (1roll)
ZHNDAi12801KE BM Jφ1.0mm 1kg (1roll) 
						

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OUTLINE
MAJOR SERVICE PARTS
„PWB UNIT
 
„OTHER UNIT
 
 Ref No. Part No. Description
N DUNTKF998FMG4 MAIN Unit (LC-32LE340M)
N DKEYMF998FMG5 MAIN Unit (LC-32LE240M)
N RUNTKA929WJQZ POWER Unit
N RUNTKA927WJZZ LED PWB A
N RUNTKA928WJZZ LED PWB B
Ref No. Part No. Description
N R1LK315T3HB00W LCD Panel Unit 
						

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CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS
ItemModel
LC-32LE240M LC-32LE340M
Screen size
80 cm
Resolution
1,049,088 pixels (1366
x768)
Video Color System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
TV
FunctionTV-Standard NTSC: M
Receiving
ChannelVHF/UHF 48.00
—863.25 MHz
CATVS1—S41ch (including Hyperband)
TV-Tuning System Auto Preset 99 ch
STEREO/BILINGUAL MTS: M
Viewing angles H : 176º V : 176º
Audio amplifier/Speakers
5W
x2 / 3.14
x14.4 cm 2pcs
Terminals Antenna input
UHF/VHF 75 DIN type
INPUT 1 HDMI (HDMI input), AUDIO in ( 3.5 mm jack)
INPUT 2 VIDEO in, AUDIO in
INPUT 3 VIDEO in, AUDIO in, COMPONENT in
INPUT 4 (PC input) 15 pin mini D-sub, AUDIO in (common use with INPUT 1) ( 3.5 mm jack)
AUDIO OUT AUDIO out
USB USB
Headphone 3.5 mm stereo
OSD language English/Simplified Chinese/Arabic/French/Portuguese/Russian/Persian/Thai/
Vietnamese/Indonesian
Power Requirement AC 110
—240 V, 50/60 Hz
Power Consumption 55 W (0.8 W Standby)
Dimensionswithout stand
750 (W)
x478 (H)
x55 (D) mm
with stand
750 (W)
x508 (H)
x222 (D) mm
Weight 7.6 kg (without stand) / 8.5 kg (with stand)
Operating Temperature 0°C
—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.
• 
						

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CHAPTER 2. OPERATION MANUAL
[1] OPERATION MANUAL
Part names
TV (Front)
POWER indicator
Light off Power off.
Lighted (Red) The TV is in standby mode.
Lighted (Green) The TV is on.Remote control sensor
TV (Rear)
1
2
3
4
5
13
12
8
10
10 9
9
116
7
1 POWER(On/Off) button
2 MENUbutton
3INPUTbutton
4Channel up ( )/down ( ) buttons
5Volume up (
+) /down (
-) buttons
6INPUT 1 (HDMI) terminal*
7INPUT 4 terminal*
8INPUT 3 terminals
9AUDIO OUT terminals
10INPUT 2 terminals
11Antenna input terminal
12USB terminal
13Headphone jack ( 3.5 mm)
The speakers do not output volume
when headphones are plugged in.
* The INPUT 1 and INPUT 4 terminals can both use the same audio input terminal. However, the proper item must be
selected in the "PC audio select" menu.
The illustrations in this operation manual are for explanation purposes and may vary slightly from the actual operations.
The illustrations used throughout this manual are based on LC-32LE340M.
•
•
• 
						

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Remote control unit
1
2
5
7
8
9
10
11
6
3
4
12
13
14
15
17 16
18
7VOL+
/VOL-
Set the volume.
(VOL
+) Increasethe volume.
(VOL
-) Decreasethe volume.
8 (Mute)
Press Mutes sound.
Press again Restores sound.
Mute will be canceled after 30 minutes. However, the TV
will not suddenly output loud sound as the volume level will
be set to 0 automatically. Increase the volume level by
pressingVOL+
.
9 (Cursor)
Select a desired item on the setting screen.
ENTER
Execute a command.
10 COLOUR ADJ. (FREEZE)
Freeze a motion picture on the screen and adjust the color
tone of the still image.
11 Color (Red/Green/Yellow/Blue)
The colored buttons are correspondingly used to select the
colored items on the screen.
12 ECO
Reduce overall power consumption based on user
preferences.
13 PHOTO
Display your pictures directly on the TV screen.
14 INPUT (INPUT SOURCE)
Select an input source.
15 CH /CH
TV input mode: Select the channel.
(CH) Increase the channel number.
(CH) Decrease the channel number.
16 MPX
Select the sound multiplex mode.
17 MENU
Display the menu screen.
18 RETURN
MENU mode: Return to the previous menu screen. 1 POWER (STANDBY/ON)
To switch the power on and off.
2 DISPLAY
Display the channel or input information.
3 SLEEP
Set the Sleep timer.
0 hr. 30 min. 1 hr. 00 min.
2 hr. 30 min.1 hr. 30 min.
2 hr. 00 min. Off
40…9
Set the channel.
5 (Flashback)
Press to return to the previous selected channel
or external input mode.
6AVMODE
Select an audio and video setting.
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2 – 3
Attaching the stand
Before attaching (or detaching) the stand, unplug the AC cord from the AC outlet.
Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from
being damaged.
1Confrm the screws supplied with the TV.
Screw driver ScrewSoft
cushion Screws (x 4)
(usedinstep3)
2Insert the stand base to the stand post on the
bottom of the TV. ( )
3Insert and tighten the 4 screws into the 4 holes
on the bottom of the stand base. ( )
NOTE
To detach the stand, perform the steps in reverse order.
CAUTION
Do not attach or detach the stand without holding it.
Doing so can cause the stand to fall, resulting in serious
personal injuries as well as damage to the stand.Stand
•
•
•
• 
						

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CHAPTER 3. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS
1. Removing of the Rear Cabinet Ass’y and Stand Base
1. Remove the 4 screws  and detach the Stand Base  .
2. Remove the 1 screw  , 3 screws  and 8 screws .
3. Detach the Rear Cabinet Ass’y  .
6 Rear Cabinet Ass'y
2
1 4
3
Stand Base 5 
						

							LC-32LE240M/340M(1stEdition)
3 – 2 2. Removing of Connectors
1. Disconnect the following connectors from MAIN Unit. (SP, PD, LW)
2. Disconnect the following connectors from POWER Unit. (PD, LA)
3. Disconnect the following connectors from Panel Ass’y. (LW, LA1, LA2)
POWER Unit MAIN UnitPanel Ass'y
[LW]
[LA1][LA]
[LA2] [PD][LW]
[SP]
[PD]