Page 1
TopPage
LC-32/37A33T
SERVICE MANUAL
No. SY8T8LC37A33T
LCD COLOUR TELEVISION
LC-32A33T
MODELS
In the interests of user-safety (Required by safety regulations in some countries) the set should
be restored to its original condition and only parts identical to those specified should be used.
LC-37A33T
OUTLINE
This model is based on the LC-32A33M and is changed some parts. This Service Manual covers the modifications
alone. For the other points, refer to the LC-32A33M (No. SY7B8LC32A33M) Service Manual.
CONTENTS
OUTLINE AND DIFFERENCES FROM BASE MODEL
OUTLINE.................................................................... i
DIFFERENCES FROM BASE MODEL...................... i
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY
PRECAUTION...........................................................iii
PRECAUTIONS FOR USING LEAD-FREE
SOLDER .................................................................. iv
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS .................................................1-1
Parts Guide
CHAPTER 2. OPERATION MANUAL
[1] OPERATION MANUAL ..........................................2-1
CHAPTER 3. DIMENSIONS
[1] DIMENSIONS (LC-32A33T)...................................3-1
[2] DIMENSIONS (LC-37A33T)...................................3-2
CHAPTER 4. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS (LC-32A33T)......4-1
[2] REMOVING OF MAJOR PARTS (LC-37A33T)......4-6
CHAPTER 5. SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC DIAGRAM.........5-1
[2] MAIN Unit...............................................................5-2
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.
Page 2
LC-32/37A33T
LC-32/37A33T
OUTLINE AND DIFFERENCES FROM BASE MODEL
Service Manual
OUTLINE
This model is based on the LC-32A33M and is changed some parts. This Service Manual covers the modifications alone. For the other points, refer to
the LC-32A33M (No. SY7B8LC32A33M) Service Manual.
DIFFERENCES FROM BASE MODEL
LIST OF CHANGED PARTS (LC-32A33T)
Ref. No. Description
PRINTED WIRING BOARD ASSEMBLIES
R/C, LED Unit DUNTKE264FM03 ← —
KEY Unit DUNTKE266FM03 ← —
MAIN Unit DUNTKE508FM02 DUNTKE508FM15 Some internal parts changed
INVERTER/POWER Unit RUNTKA419WJQZ RUNTKA419WJN1 Change (Unit Replacement Item)
LCD PANEL
LCD Panel Module Unit R1LK315T3GW20W R1LK315T3GW30W Change
MAIN Unit
C8220 Capacitor RC-KZA620WJZZY — Delete
C8221 Capacitor RC-KZA620WJZZY — Delete
C8447 Capacitor VCKYCY1EB104KY — Delete
C8448 Capacitor VCCCCZ1HH680JY — Delete
C8449 Capacitor VCCCCZ1HH680JY — Delete
C8450 Capacitor VCCCCZ1HH101JY — Delete
C8451 Capacitor VCCCCZ1HH101JY — Delete
C8452 Capacitor VCAAPC1CJ226MY — Delete
C8453 Capacitor VCAAPC1CJ226MY — Delete
C8454 Capacitor VCCCCZ1HH101JY — Delete
C8455 Capacitor RC-KZA213WJZZY — Delete
C8456 Capacitor RC-KZA620WJZZY — Delete
C8457 Capacitor VCKYCY1EB104KY — Delete
C8460 Capacitor RC-KZA211WJZZY — Delete
IC801 IC RH-IXB886WJZZQ RH-IXB887WJZZQ Change
IC8403 IC VHITB6815FG-1Y — Delete
IC8404 IC RH-IXB420WJZZY — Delete
Q8412 Transistor VSTPCP8505+-1Y — Delete
Q8413 Transistor VSTPCP8602+-1Y — Delete
Q8414 Transistor VSTPCP8505+-1Y — Delete
R1340 Resistor VRS-TW2ED000JY — Delete
R1341 Resistor VRS-TW2ED000JY — Delete
R1342 Resistor VRS-TW2ED000JY — Delete
R8235 Resistor VRS-CZ1JF183FY — Delete
R8236 Resistor VRS-CZ1JF912FY — Delete
R8238 Resistor VRS-CZ1JF913FY — Delete
R8239 Resistor VRS-CZ1JF183FY — Delete
R8240 Resistor VRS-CZ1JF163FY — Delete
R8241 Resistor VRS-CZ1JF913FY — Delete
R8463 Resistor VRS-CZ1JF332FY — Delete
R8464 Resistor VRS-CZ1JF332FY — Delete
R8465 Resistor — VRK-SB1FF000JY Add
R8467 Resistor VRS-CZ1JF330JY — Delete
R8469 Resistor VRS-CZ1JF1R0JY — Delete
R8470 Resistor VRS-CZ1JF330JY — Delete
R8471 Resistor VRS-CZ1JF102FY — Delete
R8472 Resistor VRS-CZ1JF102FY — Delete
R8473 Resistor VRS-CZ1JF330JY — Delete
R8474 Resistor — VRK-SB1FF000JY Add
R8476 Resistor VRS-CZ1JF000JY — Delete
LC-32A33M
(No. SY7B8LC32A33M)
LC-32A33T
(No. SY8T8LC37A33T)
Note
i
Page 3
LC-32/37A33T
Ref. No. Description
R8479 Resistor — VRS-CZ1JF000JY Add
R8480 Resistor VRS-CZ1JF000JY — Delete
R8482 Resistor VRS-CZ1JF1R0JY — Delete
R8483 Resistor VRS-CZ1JF1R0JY — Delete
R8485 Resistor — VRS-CZ1JF000JY Add
R8486 Resistor VRS-CZ1JF000JY — Delete
CABINET AND MECHANICAL PARTS
Please refer to a Parts list
PACKING PARTS, ACCESSORIES AND SERVICE JIGS
Please refer to a Parts list
LC-32A33M
(No. SY7B8LC32A33M)
LC-32A33T
(No. SY8T8LC37A33T)
Note
LIST OF CHANGED PARTS (LC-37A33T)
Ref. No. Description
PRINTED WIRING BOARD ASSEMBLIES
R/C, LED Unit DUNTKE264FM03 ← —
KEY Unit DUNTKE266FM03 ← —
MAIN Unit DUNTKE508FM02 DUNTKE508FM16 Some internal parts changed
INVERTER/POWER Unit RUNTKA419WJQZ — Delete
POWER Unit — RDENCA288WJQZ Add (Unit Replacement Item)
INVERTER Unit — RUNTKA418WJN1 Add (Unit Replacement Item)
LC-32A33M
(No. SY7B8LC32A33M)
LC-37A33T
(No. SY8T8LC37A33T)
Note
LCD PANEL
LCD Panel Module Unit R1LK315T3GW20W R1LK370T3GW20W Change
MAIN Unit
IC801 IC RH-IXB886WJZZQ RH-IXB887WJZZQ Change
R1340 Resistor VRS-TW2ED000JY — Delete
R1341 Resistor VRS-TW2ED000JY — Delete
R1342 Resistor VRS-TW2ED000JY — Delete
CABINET AND MECHANICAL PARTS
Please refer to a Parts list
PACKING PARTS, ACCESSORIES AND SERVICE JIGS
Please refer to a Parts list
ii
Page 4
LC-32/37A33T
LC-32/37A33T
SAFETY PRECAUTION
Service Manual
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.
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.
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 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, sensitivity 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.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
TO EXPOSED
METAL PARTS
DVM
AC SCALE
1.5k ohm
10W
0.15µF
TEST PROBE
CONNECT TO
KNOWN EARTH
GROUND
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.
iii
Page 5
LC-32/37A33T
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:
Indicates lead-free solder of tin, silver and copper. Indicates lead-free solder of tin, silver and copper.
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.
Lead-free wire solder for servicing
PARTS CODE
ZHNDAi123250E BL J φ0.3mm 250g (1roll)
ZHNDAi126500E BK J φ0.6mm 500g (1roll)
ZHNDAi12801KE BM J φ1.0mm 1kg (1roll)
PRICE
RANK
PART
DELIVERY
DESCRIPTION
iv
Page 6
LC-32/37A33T
LC-32/37A33T
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS
Service Manual
Model
Item
LCD panel
Resolution 1,049,088 pixels (1366 768)
Video Colour System
TV
Function
Brightness
Viewing angles H : 176º V : 176º
Audio amplifier 10W 2
Speakers 10 4 cm 2pcs
Terminals Rear Antenna input
OSD language
Power Requirement
Power Consumption 133 W (0.8 W Standby)
Weight
Operating Temperature 0°C - 40°C
TV-Standard
Receiving
Channel
TV-Tuning System
STEREO/BILINGUAL
VHF/UHF
CATV
INPUT 1
INPUT 2
INPUT 3
INPUT 4
INPUT 5 (PC input)
MONITOR OUT VIDEO out, AUDIO out (S-Terminal in, MONITOR OUT no out)
RS-232C 9 pin D-sub male connector
Headphone Ø 3.5 mm jack (Audio output)
without stand 10.5 kg
with stand
LC-32A33T
32" (800 mm) Advanced Super View &
BLACK TFT LCD
PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
NTSC: M
VHF 2-13ch, UHF 14-69ch
S1 - S135ch
Auto Preset 135 ch
BTSC System
450 cd/m
UHF/VHF 75 DIN type
VIDEO in, AUDIO in, S-VIDEO in,
COMPONENT in (480I,576I, 480P, 576P, 720P/50Hz, 720P/60Hz, 1080I/50Hz, 1080I/60Hz)
VIDEO in, AUDIO in,
COMPONENT in (480I,576I, 480P, 576P, 720P/50Hz, 720P/60Hz, 1080I/50Hz, 1080I/60Hz)
HDMI (HDMI input) (480P, 576P, 720P/50Hz, 720P/60Hz, 1080I/50Hz, 1080I/60Hz), AUDIO in
(Ø 3.5 mm jack)
HDMI (HDMI input) (480P, 576P, 720P/50Hz, 720P/60Hz, 1080I/50Hz, 1080I/60Hz)
15 pin mini D-sub, AUDIO in (Ø 3.5 mm jack)
English/Traditional Chinese
AC 110V, 60 Hz
12.5 kg
2
LC-37A33T
37" (940 mm) Advanced Super View &
BLACK TFT LCD
15 4 cm 2pcs
168 W (0.8 W Standby)
14.0 kg
16.0 kg
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.
1 – 1
Page 7
LC-32/37A33T
CHAPTER 2. OPERATION MANUAL
[1] OPERATION MANUAL
Preparation
Part names
TV (Front)
LC-32/37A33T
Service Manual
TV/VIDEO button
Channel up ( )/down ( ) buttons
Volume up ( )/down ( ) buttons
MENU button
POWER (On/Off) button
Remote control sensor
The illustrations and on-screen displays 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-37A33T.
OPC sensor
OPC indicator*
SLEEP timer indicator
POWER indicator
*OPC: Optical Picture Control
2 – 1
Page 8
LC-32/37A33T
Preparation
TV (Rear)
AC INPUT terminal
INPUT 3 (HDMI) terminals
RS-232C terminal
Headphone jack
MONITOR OUTPUT
terminals
Regarding the headphone jack
Use headphones with a stereo mini plug (Ø 3.5 mm).
Be sure to unplug headphones from the jack when they are not
in use.
The speakers do not output volume when headphones are
plugged in.
The "Audio" menu cannot be operated when headphones are
plugged in.
You can set the volume to different levels for each input source.
INPUT 4 (HDMI) terminal
INPUT 5 (PC) terminals
INPUT 1 terminals
Antenna input terminal
INPUT 2 terminals
Volume display when headphones are plugged in
20
2 – 2
Page 9
Preparation
Remote control unit
POWER (STANDBY/ON)
To switch the power on and off.
LC-32/37A33T
0_9
Set the channel.
Press to return to the previous
(Flashback)
selected channel or external
input mode.
MPX
Select the sound
multiplex mode.
VOL /VOL
Set the volume.
(Mute)
Mute the sound.
PC
Directly select the
INPUT 5 terminal.
/ / / (Cursor)
Select a desired item on the
setting screen.
TV/VIDEO (INPUT SOURCE)
Select an input source. (TV,
INPUT 1, INPUT 2, INPUT 3,
INPUT 4, INPUT 5 (PC))
DISPLAY
Display the channel or input
information.
CH /CH
TV input mode: Select the
channel.
SLEEP
Set the Sleep timer.
MENU
Display the menu screen.
ENTER
Execute a command.
Return to the default screen.
EXIT
WIDE
Change the wide image mode.
FREEZE
Freeze a motion picture
on the screen.
RETURN
MENU mode: Return to the
previous menu screen.
OPC
To switch the Optical Picture
Control on and off.
AV MODE
Select an audio and video
setting : AV MODE
(STANDARD, MOVIE, GAME,
USER, DYNAMIC (FIXED),
DYNAMIC), PC MODE
(STANDARD, PC, USER).
2 – 3
Page 10
LC-32/37A33T
Preparation
Attaching the stand
Before attaching (or detaching) the stand, unplug the AC cord from the AC INPUT terminal.
Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being
damaged.
CAUTION
Attach the stand in the correct direction.
Be sure to follow the instructions. Incorrect installation of the stand may result in the TV falling over.
Confirm the screws supplied with the TV.
1
Screws ( 4)
(usedinstep3)
Attach the supporting post for the stand unit
2
onto the base as shown below.
Screw
Screws ( 5)
(usedinstep2)
Hex
key
3
bottom of the TV.
Insert and tighten the 4 screws into the 4
ԙ
holes on the rear of the TV.
Hex key
Screw
Soft
cushion
Insert the stand into the openings on the
Ԙ
NOTE
To detach the stand, perform the steps in reverse order.
2 – 4
Page 11
LC-32/37A33T
CHAPTER 3. DIMENSIONS
[1] DIMENSIONS (LC-32A33T)
LC-32/37A33T
Service Manual
LC-32A33T
575
523
Unit: mm
402
74 95
776
701.5
395.9
333
200
53
110
230
200
3 – 1
Page 12
LC-32/37A33T
[2] DIMENSIONS (LC-37A33T)
LC-37A33T
640
585
402
904
Unit: mm
71 96
824.4
463.8
370
200
55
100
230
200
3 – 2
Page 13
LC-32/37A33T
CHAPTER 4. REMOVING OF MAJOR PARTS
Service Manual
[1] REMOVING OF MAJOR PARTS (LC-32A33T)
1. REMOVING OF STAND ASS’Y AND REAR CABINET
1. Remove the 4 screws [1] and detach the Stand Ass’y.
2. Detach the Bass Cover [2].
3. Remove the 2 screws [3], 2 screws [4], 4 shafts [5], 3 screws [6], 6 screws [7] and detach the Rear Cabinet.
LC-32/37A33T
Rear Cabinet
Bass Cover
2
4
3
6
5
7
7
1
Stand Ass'y
4 – 1
Page 14
LC-32/37A33T
2. REMOVING OF SPEAKERS, BOTTOM COVER AND STAND ANGLE
1. Remove the 1 screw [1] and detach the Bottom Cover.
2. Remove the 4 screws [2] and detach the Stand Angle.
3. Disconnect SP connector and detach the Speaker-L and Speaker-R [3].
4. Detach the Speaker Sheet [4].
䬌䎶䎳䬍
3
Speaker Sheet Speaker Sheet
4
3
Speaker-R
Stand Angle
4
3
2
1
2
Bottom Cover
Speaker-L
4 – 2
Page 15
3. REMOVING OF CONNECTING CORD
1. Remove all the connectors from all the PWBs.
LC-32/37A33T
KEY PWB Unit
MAIN PWB Unit
R/C, LED PWB Unit
䬌䎵䎤䬍
䬌䎮䎰䬍
䬌䎩䎩䎦䬍 䬌䎩䎩䎦䬍
䬌䎮䎰䬍
INVERTER/POWER PWB Unit
䬌䎯䎥䬍
䬌䎳䎧䬍
䬌䎯䎥䬍
䬌䎳䎧䬍
䬌䎵䎤䬍
4 – 3
Page 16
LC-32/37A33T
4. REMOVING OF PWB UNITS
1. Remove the 1 screw [1] and detach the R/C, LED PWB Unit.
2. Detach the KEY PWB Unit [2] from Front Cabinet.
3. Remove the 4 screws [3] and detach the INVERTER/POWER PWB Unit.
4. Remove the 4 screws [4], 2 screws [5] and detach the MAIN PWB Unit.
4
5
MAIN PWB Unit
R/C, LED PWB Unit
KEY PWB Unit
3
2
INVERTER/POWER PWB Unit
1
4 – 4
Page 17
5. REMOVING OF CENTER ANGLE AND LCD ANGLE-A/B
1. Remove the 2 screws [1], 2 screws [2], 8 screws [3] and detach the Center Angle.
2. Remove the 2 screws [4], 4 screws [5] and detach the LCD Angle-A/B.
3. Detach the LCD Panel Module.
LC-32/37A33T
2
3
1
Center Angle
4
LCD Angle-A
1
5
2
3
Center Angle
LCD Angle-B
4
5
LCD Panel Module
5
LCD Angle-B
LCD Angle-A
5
4 – 5
Page 18
LC-32/37A33T
[2] REMOVING OF MAJOR PARTS (LC-37A33T)
1. REMOVING OF STAND ASS'Y AND REAR CABINET
1. Remove the 4 screws [1] and detach the Stand Ass'y.
2. Detach the Bass Cover [2].
3. Remove the 2 screws [3], 2 screws [4], 4 shafts [5], 4 screws [6], 6 screws [7] and detach the Rear Cabinet.
4
3
5
Rear Cabinet
2
Bass Cover
7
6
7
1
Stand Ass'y
4 – 6
Page 19
2. REMOVING OF SPEAKERS, BOTTOM COVER AND STAND ANGLE
1. Remove the 1 screw [1] and detach the Bottom Cover.
2. Remove the 4 screws [2] and detach the Stand Angle.
3. Disconnect SP connector and detach the Speaker-L and Speaker-R [3].
4. Detach the Speaker Sheet [4].
䬌䎶䎳䬍
3
LC-32/37A33T
Speaker Sheet Speaker Sheet
4 4
3
Speaker-R
2
Stand Angle
1
3
Speaker-L
2
Bottom Cover
4 – 7
Page 20
LC-32/37A33T
3. REMOVING OF CONNECTING CORD
1. Remove all the connectors from all the PWBs.
KEY PWB Unit
MAIN
PWB Unit
R/C, LED PWB Unit
䬌䎮䎰䬍
䬌䎵䎤䬍
䬌䎩䎩䎦䬍 䬌䎩䎩䎦䬍
䬌䎮䎰䬍
䬌䎯䎥䬍
䬌䎵䎤䬍
䬌䎯䎥䬍
䬌䎳䎧䬍
䬌䎳䎧䬍
POWER PWB Unit
䬌䎦䎱䎚䎕䎓䎕䬍 䬌䎦䎱䎚䎘䎓䎔䬍
INVERTER PWB Unit
4 – 8
Page 21
4. REMOVING OF PWB UNITS
1. Remove the 1 screw [1] and detach the R/C, LED PWB Unit.
2. Detach the KEY PWB Unit [2] from Front Cabinet.
3. Remove the 6 screws [3] and detach the POWER PWB Unit and INVERTER PWB Unit.
4. Remove the 4 screws [4], 2 screws [5] and detach the MAIN PWB Unit.
LC-32/37A33T
3
4
5
MAIN PWB Unit
R/C, LED PWB Unit
KEY PWB Unit
2
POWER PWB Unit
INVERTER PWB Unit
1
4 – 9
Page 22
LC-32/37A33T
5. REMOVING OF CENTER ANGLE AND LCD ANGLE-A/B
1. Remove the 8 screws [1] and detach the Center Angle.
2. Remove the 7 screws [2], 4 screws [3] and detach the LCD Angle-A/B.
3. Detach the LCD Panel Module.
Center Angle
1
1
LCD Angle-B
2
2
LCD Angle-A
2
Center Angle
3
3
LCD Panel Module
3
2
LCD Angle-B
2
LCD Angle-A
2
3
2
4 – 10
Page 23
LC-32/37A33T
5 – 1
LC-32/37A33T
Service Manual
CHAPTER 5. SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC DIAGRAM
1. VOLTAGE MEASUREMENT CONDITION:
1) The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 120V. Signals are fed by a color bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.
2. INDICATION OF RESISTOR & CAPACITOR:
RESISTOR
1) The unit of resistance "Ω" is omitted.
(K=kΩ=1000Ω, M=MΩ).
2) All resistors are ± 5%, unless otherwise noted.
(K= ± 10%, F= ± 1%, D= ± 0.5%)
3) All resistors are 1/16W, unless otherwise noted.
CAPACITOR
1) All capacitors are µF, unless otherwise noted.
(P=pF=µµF).
2) All capacitors are 50V, unless otherwise noted.
CAUTION:
This circuit diagram is original one, therefore there may be a slight
difference from yours.
SAFETY NOTES:
1) DISCONNECT THE AC PLUG FROM THE AC OUTLET
BEFORE REPLACING PARTS.
2) SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS
OPERATING.
IMPORTANT SAFETY NOTICE:
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.
Page 24
LC-32/37A33T
5 – 2
[2] MAIN Unit
•MAIN Unit-6
A
C
B
D
E
F
G
I
H
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LC-32/37A33T
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LC-32/37A33T
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PartsGuide
LC-32/37A33T
PARTS GUIDE
No. SY8T8LC37A33T
LCD COLOUR TELEVISION
LC-32A33T
Note:
The reference numbers on the PWB are arranged
in alphabetical order.
[1] PRINTED WIRING BOARD ASSEMBLIES
[2] LCD PANEL
[3] DUNTKE508FM15 (LC-32A33T)
DUNTKE508FM16 (LC-37A33T)
(MAIN Unit)
[4] CABINET AND MECHANICAL PARTS
(LC-32A33T)
[5] LCD PANEL UNIT (LC-32A33T)
[6] CABINET AND MECHANICAL PARTS
(LC-37A33T)
[7] LCD PANEL UNIT (LC-37A33T)
MODELS
CONTENTS
LC-37A33T
[8] SUPPLIED ACCESSORIES
[9] PACKING PARTS (NOT REPLACEMENT ITEM)
[10] SERVICE JIG (USE FOR SERVICING)
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.
Page 28
LC-32/37A33T
NO. PARTS CODE
PRICE
RANK
NEW
MARK
PAR T
DELIVERY
DESCRIPTION
[1] PRINTED WIRING BOARD ASSEMBLIES
N DUNTKE264FM03 AP N V R/C, LED Unit
N DUNTKE266FM03 AG N V KEY Unit
N DUNTKE508FM15 V MAIN Unit (LC-32A33T)
N DUNTKE508FM16 N V MAIN Unit (LC-37A33T)
N RDENCA288WJQZ BN N V POWER Unit (LC-37A33T)
N RUNTKA418WJN1 BL N V INVERTER Unit (LC-37A33T)
N RUNTKA419WJN1 BT N V INVERTER/POWER Unit (LC-32A33T)
N RUNTK3923TPZZ AN J GND Unit (Top) (LC-32A33T)
N RUNTK3924TPZZ AP J GND Unit (Bottom) (LC-32A33T)
N RUNTK3925TPZZ AP J GND Unit (Top) (LC-37A33T)
N RUNTK3926TPZZ AP J GND Unit (Bottom) (LC-37A33T)
[2] LCD PANEL
N R1LK315T3GW30W DA J 32"LCD Panel Module Unit (LC-32A33T)
N R1LK370T3GW20W DR J 37"LCD Panel Module Unit (LC-37A33T)
[3] DUNTKE508FM15 (LC-32A33T)/DUNTKE508FM16 (LC-37A33T) (MAIN Unit)
IC801 RH-IXB887WJZZQ BF N V IC
R8465 VRK-SB1FF000JY AA N J Resistor, 0 1/32W Metal Composition (LC-32A33T)
R8474 VRK-SB1FF000JY AA N J Resistor, 0 1/32W Metal Composition (LC-32A33T)
R8479 VRS-CZ1JF000JY AA J Resistor, 0 1/16W Metal Oxide (LC-32A33T)
R8485 VRS-CZ1JF000JY AA J Resistor, 0 1/16W Metal Oxide (LC-32A33T)
2
Page 29
[4] CABINET AND MECHANICAL PARTS (LC-32A33T)
19
1
26
27
21
21
28
2-1
2-3
2-2
17
32
2
5
8
13
29
33
33
34
34
11
11
10
14
15
3
22
10
9
16
16
6
7
20
1-5
1-1
1-7
1-4
1-6
1-3
1-2
1-9
1-9
1-6
1-7
23
12
24
25
INVERTER/POWER Unit
MAIN Unit
2-4
2-4
2-8
2-5
2-5
2-9
2-5
30
2-6
35
2-7
31
31
31
31
33
34
34
34
34
34
34
18
34
34
1-8
4
36
R/C, LED Unit
KEY Unit
37
38
38
9
LC-32/37A33T
3
Page 30
LC-32/37A33T
NO. PARTS CODE
PRICE
RANK
NEW
MARK
PAR T
DELIVERY
[4] CABINET AND MECHANICAL PARTS (LC-32A33T)
1 CCABAC007WJ42 BF N J Front Cabinet Ass'y
1-1 Not Available - - Front Cabinet
1-2 Not Available - - Badge, SHARP
1-3 HDECQA884WJ4A AN J SP Center Decoration
1-4 HDECQA890WJ4A AD J LED Cover
1-5 HPNLSA215WJ4A AS N J Speaker Sheet
1-6 PSPAHB411WJ4Z AD J Spacer (T-B), x2
1-7 PSPAHB412WJ4Z AC J Spacer (Side), x2
1-8 XEBS930P08000 AA J Screw, x3
1-9 PSPAHB562WJ4Z AB J Spacer, x4
2 CCABBB404WJ41 BD N J Rear Cabinet Ass'y
2-1 Not Available - N - Rear Cabinet
2-2 HINDPD056WJ4A AK N J Terminal Label
2-3 GCOVAC518WJ4Z AE J Hole Cover, x4
2-4 PSPAHB554WJ4Z AC N J Spacer, x2
2-5 PSPAHB555WJ4Z AB N J Spacer, x5
2-6 PSPAHB074WJZZ AB J Spacer, x2
2-7 PSPAHB567WJ4Z AA N J Spacer, x3
2-8 PSPAHB568WJ4Z AB N J Spacer, x2
2-9 PSPAHB574WJ4Z AB N J Spacer
3 R1LK315T3GW30W DA J 32"LCD Panel Module Unit
4 GCOVAA984WJ4A AC J Bass Cover
5 GCOVAC612WJ4A AF J Bottom Cover
6 HINDPD173WJ4A AD N V Model Label
7 JBTN-A718WJ4A AD J Operation Button
8 LANGKB358WJ4W AT J Stand Fix Angle
9 LANGKB399WJ4W AT J Center Angle LR, x2
10 LANGKB470WJ4W AD J LCD Angle-A, x2
11 LANGKB471WJ4W AD J LCD Angle-B, x2
12 LHLDW1033PEZZ AA J Cable Tie, x2
13 LHLDWA143WJKZ AC J Wire Holder
14 PSPAHB379WJ4Z AA J Spacer, x2
15 LHLDZA934WJKZ AB J Wire Holder, x2
16 LHLDZB015WJ4Z AG J
17 NSFTZ0134CEFW AD J Shaft, x4
18 PSPAHA992WJ4Z AC J Spacer, x2
19 PSPAHB557WJ4Z AB J Spacer
20 PSPAHB562WJ4Z AB J Spacer
21 PSPAZB850WJ4Z AQ J SP Spacer, x2
22 QCNW-H025WJQZ AM N J Connecting Cord (FFC), x2
23 QCNW-G834WJQZ AM J Connecting Cord (PD/LB)
24 QCNW-G835WJQZ AF J Connecting Cord (KM)
25 QCNW-G836WJQZ AM J Connecting Cord (RA)
26 QCNW-G837WJQZ AK J Connecting Cord (SP)
27 RSP-ZA321WJZZ AT N J Speaker Box-L
28 RSP-ZA322WJZZ AT N J Speaker Box-R
29 Not Available - N - No. Label
30 XBPS830P06000 AA J Screw (for HDMI), x2
31 XEBS940P12000 AB J Screw (for CAB A_Angle), x4
32 XEBS940P16000 AB J Screw (for CAB A_B), x6
33 XHPS730P14WS0 AB J Screw (for PWB Holder), x4
34 XHPS830P06WS0 AA J Screw (for Chassis/PWB), x23
35 XHPS830P10WS0 AB J Screw (for CAB B_Panel), x3
36 XEBS930P08000 AA J Screw (for LED PWB)
37 XEBS930P10000 AA J Screw (for AV Jack), x2
38 XHPS730P08WS0 AA J Screw (for Angle_Panel), x2
PWB Holder, x2
DESCRIPTION
4
Page 31
[5] LCD PANEL UNIT (LC-32A33T)
LC-32/37A33T
3-17
3-18
3-19
3-1
3-3
3-18
3-2
3-18
3-3
3-18
3-4
3-6
3-7
3-14
3-16
3-15
3
3-11
3-10
3-8
3-14
3-15
3-20
3-12
3-13
3-9
3-5
NO. PARTS CODE
[5] LCD PANEL UNIT (LC-32A33T)
3 R1LK315T3GW30W DA J 32"LCD Panel Module Unit
3-1 CANGKB549WJ01 AS J Bezel Ass'y Top
3-2 CANGKB549WJ02 AR J Bezel Ass'y Bottom
3-3 CANGKB548WJ01 AK J Bezel Ass'y L/R, x2
3-4 CHLDZB061WJ01 AT J P Chassis Ass'y L
3-5 CHLDZB062WJ01 AT J P Chassis Ass'y R
3-6 PSHEPA667WJZZ AU J Diffusion Sheet, x2
3-7 PSLDK3003TPZZ AY J Diffusion Plate
3-8 LHLDZA919WJKZ AL J Lamp Holder L
3-9 LHLDZA918WJKZ AL J Lamp Holder R
3-10 RLMPLA029WJN1 AR J Lamp Unit, x10
3-11 QSOCFA003WJZZ AD J Lamp Socket, x10
3-12 RUNTK3923TPZZ AN J GND Unit (Top)
3-13 RUNTK3924TPZZ AP J GND Unit (Bottom)
3-14 LHLDZA924WJKZ AB J Lamp Clip A, x2
3-15 LHLDZA925WJKZ AC J Lamp Clip B, x2
3-16 PMIR-A166WJZZ AU J Mirror Sheet
3-17 LCHSMA422WJZZ BA J BL Chassis Ass'y
3-18 LX-EZA028WJF9 AB J Screw (Bezel/P Chassis Fix), x12
3-19 LX-HZA039WJF7 AB J Screw (Bezel/BL Chassis Fix), x10
3-20 XHPS730P08KS0 AB J Screw (GND Unit), x4
PRICE
RANK
NEW
MARK
PAR T
DELIVERY
DESCRIPTION
5
Page 32
LC-32/37A33T
[6] CABINET AND MECHANICAL PARTS (LC-37A33T)
7
1-5
1-1
33
25
38
28
R/C, LED Unit
38
15
26
22
27
2-8
2-6
12
29
2-4
2-5
37
2-5
32
2-1
2-2
31
2-7
34
2-8
2-3
6
36
30
4
16
2
38
KEY Unit
19
1
1-6
1-6
1-6
1-7
1-2
1-3
INVERTER Unit
23
1-6
24
22
1-6
1-6
1-4
21
POWER Unit
20
15
37
9
35
38
10
35
18
35
38
18
17
20
11
3
17
17
35
14
10
11
35
38
38
9
38
38
35
38
8
37
MAIN Unit
38
5
13
6
Page 33
LC-32/37A33T
NO. PARTS CODE
PRICE
RANK
NEW
MARK
PAR T
DELIVERY
[6] CABINET AND MECHANICAL PARTS (LC-37A33T)
1 CCABAC008WJ42 BW N J Front Cabinet Ass'y
1-1 Not Available - - Front Cabinet
1-2 Not Available - - Badge, SHARP
1-3 HDECQA885WJ4A AN J SP Center Decoration
1-4 HDECQA890WJ4A AD J LED Cover
1-5 HPNLSA216WJ4A AT N J Speaker Sheet
1-6 PSPAHB472WJ4Z AC J Spacer (T-B), x6
1-7 XEBS930P08000 AA J Screw, x3
2 CCABBB403WJ41 BP N J Rear Cabinet Ass'y
2-1 Not Available - N - Rear Cabinet
2-2 GCOVAC518WJ4Z AE J Hole Cover, x4
2-3 HINDPD056WJ4A AK J Terminal Label
2-4 PSPAHB132WJ4Z AD J Spacer (Top Long)
2-5 PSPAHB573WJ4Z AC N J Spacer (Bottom), x2
2-6 PSPAHB574WJ4Z AB N J Spacer (Top Short)
2-7 PSPAHB576WJ4Z AB N J Spacer (Top Cover), x2
2-8 PSPAHB584WJ4Z AC N J Spacer (Side), x2
3 R1LK370T3GW20W DR J 37"LCD Panel Module Unit
4 GCOVAA984WJ4A AC J Bass Cover
5 GCOVAC612WJ4A AF J Bottom Cover
6 HINDPD172WJ4A AD N V Model Label
7 JBTN-A718WJ4A AD J Operation Button
8 LANGKB358WJ4W AT J Stand Fix Angle
9 LANGKB403WJ4W AU J Center Angle LR, x2
10 LANGKB492WJ4W AD J LCD Angle-A, x2
11 LANGKB493WJ4W AD J LCD Angle-B, x2
12 LHLDW1033PEZZ AA J Cable Tie, x2
13 PSPAZB699WJ4Z AC N J Leg Cushion, x3
14 LHLDZA934WJKZ AB J Wire Holder, x6
15 LHLDZB015WJ4Z AG J PWB Holder, x2
16 NSFTZ0134CEFW AD J Shaft, x4
17 PSPAGA344WJZZ AC J Spacer, x3
18 PSPAHB380WJ4Z AB J Spacer, x5
19 PSPAHB562WJ4Z AB J
20 PSPAHB575WJ4Z AD J Spacer, x2
21 PSPAZB202WJKZ AB J PWB Spacer
22 PSPAZB851WJ4Z AE J SP Spacer, x2
23 QCNW-H026WJQZ AN N J Connecting Cord (FFC), x2
24 QCNW-H079WJQZ AG N J Connecting Cord (KM)
25 QCNW-H081WJQZ AL N J Connecting Cord (RA)
26 QCNW-H171WJQZ AN N J Connecting Cord (PD/LB)
27 QCNW-H172WJQZ AK N J Connecting Cord (SP)
28 RSP-ZA304WJZZ AW N J Speaker Box-L
29 RSP-ZA305WJZZ AW N J Speaker Box-R
30 Not Available - N - No. Label
31 XBPS830P06000 AA J Screw (for HDMI), x2
32 XBPS940P10JS0 AB J Screw (for CAB B Top), x4
33 XEBS930P08000 AA J Screw (for LED/KEY-PWB)
34 XEBS930P10000 AA J Screw (for Terminal), x2
35 XEBS940P08000 AB J Screw (for LCD Fix), x7
36 XEBS940P16000 AB J Screw (for CAB B), x6
37 XHPS730P14WS0 AB J Screw (for PWB Holder), x4
38 XHPS830P06WS0 AA J Screw, x25
Spacer
DESCRIPTION
7
Page 34
LC-32/37A33T
[7] LCD PANEL UNIT (LC-37A33T)
3-22
3-21
3-22
3-21
3-1
3-3
3-2
3-21
3-22
3-22
3-21
3-3
3-4
3-6
3-22
3-8
3
3-18
3-13
3-10
3-12
3-16
3-16
3-17
3-16
3-20
3-14
3-15
3-19
3-11
3-9
3-7
3-5
NO. PARTS CODE
PRICE
RANK
[7] LCD PANEL UNIT (LC-37A33T)
3 R1LK370T3GW20W DR J 37"LCD Panel Module Unit
3-1 CANGKB426WJ02 BA J Bezel Ass'y Top
3-2 CANGKB426WJ01 AZ J Bezel Ass'y Bottom
3-3 CANGK4052TP01 AL J Bezel Ass'y L/R, x2
3-4 CHLDZA926WJ01 AP J P Chassis Ass'y Top
3-5 CHLDZA927WJ01 AP J P Chassis Ass'y Bottom
3-6 CHLDZA980WJ01 AL J P Chassis Ass'y L
3-7 CHLDZA981WJ01 AL J P Chassis Ass'y R
3-8 PSHEPA585WJZZ AT J Diffusion Sheet, x2
3-9 PSLDK3004TPZZ AY J Diffusion Plate
3-10 LHLDZA921WJKZ AL J Lamp Holder L
3-11 LHLDZA920WJKZ AN J Lamp Holder R
3-12 RLMP-0664TPZZ AQ J Lamp Unit, x12
3-13 QSOCFA003WJZZ AD J Lamp Socket, x12
3-14 RUNTK3925TPZZ AP J GND Unit (Top)
3-15 RUNTK3926TPZZ AP J GND Unit (Bottom)
3-16 LHLDZA925WJKZ AC J Lamp Clip A, x6
3-17 LHLDZA924WJKZ AB J Lamp Clip B
3-18 PMIR-A143WJZZ AW J Mirror Sheet
3-19 CCHSMA423WJ02 BE J BL Chassis Ass'y
3-20 XHPS730P06KS0 AB J Screw (GND Unit), x4
3-21 LX-HZA039WJF7 AB J Screw (Bezel/BL Chassis Fix), x12
3-22 LX-EZA028WJF9 AB J Screw (Bezel/P Chassis Fix), x6
NEW
MARK
PAR T
DELIVERY
DESCRIPTION
8
Page 35
[8] SUPPLIED ACCESSORIES
LC-32/37A33T
X1 X3
X5
Cable Clamp
Operation Manual RC Chinese Label
NO. PARTS CODE
X2
X6 X7
PRICE
RANK
AC Cord
NEW
MARK
DELIVERY
[8] SUPPLIED ACCESSORIES
X1 LHLDWA173WJKZ AE J Cable Clamp
!
X2 QACCZA084WJPZ AS N J AC Cord
X3 QCNCWA953WJZZ AX N V Adaptor
X4 RRMCGA666WJSA AV J Remote Control Unit
X5 TINS-E054WJZZ N V Operation Manual
X6 TLABHA184WJZZ AL N V RC Chinese Label
X7 CDAI-A441WJ02 BF N J Stand Unit
PAR T
X4
Stand Unit
DESCRIPTION
Remote Control Unit
9
Page 36
LC-32/37A33T
[9] PACKING PARTS (NOT REPLACEMENT ITEM)
S11
S10
S7
S8
S4
S7
S2
S3
S5
S6
S9
S12
S13
S15
S8
S14
S1
10
Page 37
LC-32/37A33T
NO. PARTS CODE
PRICE
RANK
NEW
MARK
PAR T
DELIVERY
[9] PACKING PARTS (NOT REPLACEMENT ITEM)
S1 SPAKCE723WJZZ - N - Packing Case (LC-32A33T)
S1 SPAKCE722WJZZ - N - Packing Case (LC-37A33T)
S2 SPAKFB417WJZZ - N - Stand Case
S3 SPAKFB418WJZZ - N - Stand Pad
S4 SPAKPA611WJZZ - - Wrapping Paper (LC-32A33T)
S4 SPAKPA801WJZZ - - Wrapping Paper (LC-37A33T)
S5 SPAKPB053WJZZ - N - Mirror Mat Sup
S6 SPAKPB054WJZZ - N - Mirror Mat Base
S7 SPAKXB828WJZZ - - Packing Add. (Top) (LC-32A33T)
S7 SPAKXB971WJZZ - - Packing Add. (Top) (LC-37A33T)
S8 SPAKXB829WJZZ - - Packing Add. (Bottom) (LC-32A33T)
S8 SPAKXB972WJZZ - - Packing Add. (Bottom) (LC-37A33T)
S9 SPAKAA373WJZZ - N - Cover Sheet
S10 SSAKA0005PEZZ - - Polyethylene Bag
S11 SSAKA0128AJZZ - - Polyethylene Bag
S12 SSAKHA042WJZZ - N - Polyethylene Bag for Screw
S13 SSAKKA001WJZZ - N - Polyethylene Bag for Cloth
S14 TLABV0182AJZZ - - No. Label
S15 SPAKFB567WJ4Z - N - Stand Pad (LC-37A33T)
[10] SERVICE JIG (USE FOR SERVICING)
N QCNW-G440WJQZ AP J Connecting Cord
N MAIN (P5204) - KEY (P151)
N QCNW-H278WJQZ AL N V Connecting Cord
N MAIN (P5203) - LED (P101)
N QCNW-H279WJQZ AP N V Connecting Cord
N MAIN (P2301/P2801) - POWER/INVERTER
N QCNW-H280WJQZ AH N V Connecting Cord
N MAIN (P1301) - SPEAKER
N QCNW-H281WJQZ AN N V Connecting Cord (FFC), x2
N MAIN (SC8201/SC8202) - LCD PANEL
DESCRIPTION
11
Page 38
LC-32/37A33T
COPYRIGHT 2008 BY SHARP CORPORATION
ALL RIGHTS RESERVED.
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
Dec. 2008
TQ2682-S SY. KD
SHARP CORPORATION
AV Systems Group
CS Promotion Center
Yaita, Tochigi 329-2193, Japan
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