Sharp LC-32HT1U User manual

LC-32HT1U
SERVICE MANUAL
MODEL LC-32HT1U
LCD COLOR TELEVISION
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 specified should be used.
SHARP CORPORATION This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
SY5Q5LC32HT1U
Page
»LIST OF CHANGED PARTS .......................................................................................................................2
»IMPORTANT SERVICE SAFETY PRECAUTION ......................................................................................3
»SPECIFICATIONS ......................................................................................................................................6
»OPERATION MANUAL ...............................................................................................................................7
»DIMENSIONS ...........................................................................................................................................12
»REMOVING OF MAJOR PARTS ..............................................................................................................13
»TROUBLESHOOTING TABLE .................................................................................................................17
»OVERALL WIRING DIAGRAM .................................................................................................................18
»SYSTEM BLOCK DIAGRAM ....................................................................................................................20
»DIGITAL BLOCK DIAGRAM .....................................................................................................................22
»DESCRIPTION OF SCHEMATIC DIAGRAM ...........................................................................................25
»SCHEMATIC DIAGRAM ...........................................................................................................................26
»PRINTED WIRING BOARD ASSEMBLIES ..............................................................................................54
»PARTS LIST ..............................................................................................................................................72
»PACKING OF THE SET ............................................................................................................................82
CONTENTS
This model is based on the LC-32D4U and is equipped with a redesigned speaker.This Service
Manual covers the modifications alone. For the other points, refer to the LC-32D4U Service Manual.
OUTLINE

2
LC-32HT1U
Ref.No Description LC-32D4U LC-32HT1U Note
PWB ASSEMBLIES
DIGITAL Unit DUNTKD331FE13 DUNTKD331FE20 Some parts changed
AV Unit DUNTKD352DE18 DUNTKD352WE21 Some parts changed
KEY Unit DUNTKD353DE18 DUNTKD353WE01 No parts changed
R/C, LED Unit DUNTKD354DE18 DUNTKD354WE02 No parts changed
SP(L) Terminal Unit DUNTKD355WE01 Add
SP(R) Terminal Unit DUNTKD356WE01 Add
MAIN Unit DUNTKD376FE05 DUNTKD376FM08 Some parts changed
POWER Unit RDENCA139WJQZ RDENCA140WJQZ No parts changed
DIGITAL Sub Unit DUNTKD537FE01 Add
ËLCD PANEL
32"WIDE LCD PANEL MODULE Unit RLCUCA025WJZZ
ËDIGITAL Unit
Plese refer to the parts list.
ËAV Unit
IC1913 Integrated Circuit VHi24LC2BiN-1Y VHi24LC2BiN9ES Change
Q3051 Transistor VS2SA1530AR-1Y Add
Q3052 Transistor VS2SC3928AR-1Y Add
D3051 Diode VHD1SS355//-1Y Add
R3051 Metal Oxide VRS-CY1JF472JY Add
R3053 Metal Oxide VRS-CY1JF103JY Add
R3054 Metal Oxide VRS-CY1JF103JY Add
R3055 Metal Oxide VRS-CY1JF472JY Add
R3056 Metal Oxide VRS-CY1JF220JY Add
P3801 Plug QPLGNA324WJZZY Add
These parts is delete from "LC-32D4U". Delete
Q1110, L1103, C1110, C1113, C2709, C2714, R1114, R1118, R2713, P3102
ËSP(L) Terminal Unit
Please refer to the parts list.
ËSP(R) Terminal Unit
Please refer to the parts list.
ËMAIN Unit
IC1004 Integrated Circuit RH-iXB515WJQZQ RH-iXB665WJQZQ Change
R1086 Metal Oxide VRS-CY1JF472JY Add
These parts is delete from "LC-32D4U". Delete
R1022, P1001,P1003, SC1001
ËDIGITAL Sub Unit
Please refer to the parts list.
ËCABINET AND MECHANICAL PARTS, SUPPLIED ACCESSORIES, PACKING PARTS, SERVICE JIGS
Please refer to the parts list.
LIST OF CHANGED PARTS
LC-32D4U ➔ LC-32HT1U

3
LC-32HT1U
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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 "
å" 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.
CAUTION: FOR CONTINUED
PROTECTION AGAINST A RISK OF
FIRE REPLACE ONLY WITH SAME
TYPE FUSE.
WARNING
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:
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 120 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.
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 0.75 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.
IMPORTANT SERVICE SAFETY PRECAUTION
ËService work should be performed only by qualified service technicians who are thor-
oughly familiar with all safety checks and the servicing guidelines which follow:
DVM
AC SCALE
1.5k ohm
10W
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
0.15 µF
TEST PROBE
A V F701, F702 (5A, 250V)
F703 (1A, AC250V), F704 (117°C, 2A)

4
LC-32HT1U
PRECAUTION: POUR LA
PROTECTION CONTINUE
CONTRE LES RISQUES
D'INCENDIE, REMPLACER LE
FUSIBLE
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AVIS POUR LA SECURITE
De nombreuses pièces, électriques et mécaniques,
dans les téléviseur ACL présentent des caractéristiques
spéciales relatives à la sécurité, qui ne sont souvent
pas évidentes à vue. Le degré de protection ne peut
pas être nécessairement augmentée en utilisant des
pièces de remplacement étalonnées pour haute tension,
puissance, etc.
Les pièces de remplacement qui présentent ces
caractéristiques sont identifiées dans ce manuel; les
pièces électriques qui présentent ces particularités sont
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
ËNe peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement
accoutumé à toute vérification de sécurité et aux conseils suivants.
identifiées par la marque " å" et hachurées dans la
liste des pièces de remplacement et les diagrammes
schématiques .
Pour assurer la protection, ces pièces doivent être
identiques à celles utilisées dans le circuit d'origine.
L'utilisation de pièces qui n'ont pas les mêmes
caractéristiques que les pièces recommandées par
l'usine, indiquées dans ce manuel, peut provoquer des
électrocutions, incendies, radiations X ou autres
accidents.
AVERTISSEMENT
1. N'entreprendre aucune modification de tout circuit.
C'est dangereux.
2. Débrancher le récepteur avant toute réparation.
VERIFICATIONS CONTRE L'INCEN-DIE ET
LE CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur, effectuer
les vérifications suivantes.
1. Inspecter tous les faisceaux de câbles pour s'assurer
que les fils ne soient pas pincés ou qu'un outil ne soit
pas placé entre le châssis et les autres pièces
métalliques du récepteur.
2. Inspecter tous les dispositifs de protection comme les
boutons de commande non-métalliques, les isolants,
le dos du coffret, les couvercles ou blindages de réglage
et de compartiment, les réseaux de résistance-
capacité, les isolateurs mécaniques, etc.
3. S'assurer qu'il n'y ait pas de danger d'électrocution en
vérifiant la fuite de courant, de la facon suivante:
•Brancher le cordon d'alimentation directem-ent à une
prise de courant de 120V.
•A l'aide de deux fils à pinces, brancher une résistance
de 1.5 kΩ10 watts en parallèle avec un condensateur
de 0.15µF en série avec toutes les pièces métalliques
exposées du coffret et une terre connue comme une
conduite électrique ou une prise de terre branchée à
la terre.
•Utiliser un voltmètre CA d'une sensibilité d'au moins
5000Ω/V pour mesurer la chute de tension en travers
de la résistance.
•Toucher avec la sonde d'essai les pièces métalliques
exposées qui présentent une voie de retour au châssis
(antenne, coffret métallique, tête des vis, arbres de
commande et des boutons, écusson, etc.) et mesurer
la chute de tension CA en-travers de la résistance.
Toutes les vérifications doivent être refaites après avoir
inversé la fiche du cordon d'alimentation. (Si
nécessaire, une prise d'adpatation non polarisée peut
être utilisée dans le but de terminer ces vérifications.)
La tension de pointe mesurèe ne doit pas dépasser
0.75V RMS (correspondante au courant CA de pointe
de 0.5mA RMS) .
Dans le cas contraire, il y a une possibilité de choc
électrique qui doit être supprimée avant de rendre le
récepteur au client.
DVM
ECHELLE CA
1.5k ohm
10W
0.15 µF
SONDE D'ESSAI
AUX PIECES
METALLIQUES
EXPOSEES
BRANCHER A UNE
TERRE CONNUE
A V
F701, F702 (5A, 250V)
F703 (1A, AC250V), F704 (117°C, 2A)

5
LC-32HT1U
Precautions for using lead-free solder
1Employing 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:
2Using 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.
3Soldering
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.
Indicates lead-free solder of tin, silver and copper.
Lead-free wire solder for servicing
Part No, ★Description Code
ZHNDAi123250E J φ0.3mm 250g(1roll) BL
ZHNDAi126500E J φ0.6mm 500g(1roll) BK
ZHNDAi12801KE J φ1.0mm 1kg(1roll) BM
LFa
Indicates lead-free solder of tin, silver and copper.

6
LC-32HT1U
Specifications

TV
Function American TV Standard ATSC/NTSC System
VHF/UHF VHF 2-13ch, UHF 14-69ch
CATV 1-125ch
Audio multiplex BTSC System
Terminals AV in, COMPONENT in
INPUT 2 AV in, COMPONENT in
INPUT 4 Audio in, HDMI in with HDCP
ANALOG ANTENNA 75 ΩUnbalance, F Type for VHF/UHF/CATV in x 1
INPUT 3 S-VIDEO in, AV in
OSD language English/French/Spanish
Power Requirement AC 120 V, 60 Hz
Power Consumption
Weight
Accessories Operation manual (x1), AC cord (x1), Cable clamp (x1), Cable tie (x1)
TV-standard (CCIR)
Receiving
Channel
Rear INPUT 1
LCD panel
Number of dots 3,147,264 dots (1366 x 768 X 3 dots)
Brightness 450 cd/m 2
Viewing angles H : 170°V : 170°
Audio out 10W x 2
MONITOR OUTPUT S-VIDEO out, AV out (Not available in the PPV TV mode)
 
Digital Terrestrial
Broadcast (8VSB)
2-69ch
Digital cable
(64/256 QAM)
1-135ch
146 W
32" Advanced Super View & BLACK TFT LCD
DIGITAL ANTENNA 75 ΩUnbalance, F Type for Digital Air x 1
TRANSPORT RJ-11
TV + stand + speaker
TV + speaker
47.4 lbs./21.5 kg
38.6 lbs./17.5 kg
TV + stand 41.9 lbs./19.0 kg
Dimension
(W x H x D)
(in inches)
•Aspartofpolicy of continuous improvement, SHARP reservestherighttomakedesign and specification changes for
productimprovementwithoutpriornotice.Theperformancespecificationfiguresindicatedarenominalvaluesofproduction
units. There may be some deviations from these values in individual units.
Operating temperature +32°F to +104°F (0°C to +40°C)
TV + stand + speaker
TV + stand
TV + speaker
TV only
3149/64
x 2521/32 x 113/8
3149/64 x 2521/32 x 113/8
3149/64 x 237/32 x 431/64
3149/64 x 1913/32 x 41/4
TV only 33.1 lbs./15.0 kg
DIGITAL AUDIO OUTPUT Optical Digital audio output x 1 (PCM/Dolby Digital)

7
LC-32HT1U
Operation Manual
Part names
POWER indicatorOPC sensor
TV (Front)
POWER button
INPUT button
Volume buttons (VOL
Ð/+
)
Channel buttons (CH )
Remote control sensor
*OPC: Optical Picture Control
(See the OPERATION MANUAL FOR HOTEL OPERATOR.)
OPC indicator*
NOTE
•See the OPERATION MANUAL for status indicator.
Part names
TV (Rear)
*
1
Press RESET if the TV cannot return to its original state after performing various operations. •AV MODE resets to DYNAMIC (Fixed) •TV channel returns to the default channel in the PPV TV mode and to initial channel (Air: 2ch, Cable: 1 or 2ch) in the
Normal TV mode.
•Audio setting initializes •Surround resets to off •Image position initializes
*
2
Press SYSTEM RESET if the TV does not operate after starting up.
*
3
The MONITOR OUTPUT terminal is not available in the PPV TV mode.
*
4
The TRANSPORT terminal is designed for hotel communication. Do not use it for other purposes.
NOTE
•Pressing RESET will not work if the TV is in standby mode. •PressingRESET willnotdeletechannelpreset orsecret number.SeetheOPERATION MANUAL FOR HOTEL OPERATOR
toclear thesecretnumber whenyouknow it.Seethe OPERATION MANUAL FOR HOTEL OPERATOR toinitializethe TV settings to the factory preset values when you forget your secret number.
RESET*
1
INPUT 3
terminals
SYSTEM RESET*
2
ANALOG IN terminal
AC INPUT terminal
RS-232C terminal
INPUT 2 terminals
INPUT 1
terminals
INPUT 4 terminals
MONITOR OUTPUT terminals*
3
TRANSPORT terminal*
4
DIGITAL AIR IN terminal
DIGITAL AUDIO
OUTPUT terminal

8
LC-32HT1U
Part names
Remote control unit (Optional accessory)
1 TV POWER: Switch the TV power on or standby.
2DISPLAY: Display the channel information. 3SOURCE POWER: Turn the power of the external
equipment on and off.
4External equipment operational buttons: Operatethe
external equipment.
50– 9: Set the channel. 6(DOT) 7INPUT: SelectaTV input source. (TV, INPUT 1, INPUT
2, INPUT 3, INPUT 4)
8 VOL
+/Ð
: Set the volume.
9SURROUND: Select Surround settings. 10 FREEZE: Set the still image. Press again to return to
normal screen.
11 EXIT: Turn off the menu screen. 12 SLEEP: Set the sleep timer. 13 AUDIO: Selectsthe MTS/SAPorthe audiomodeduring
multi-channel audio broadcasts.
14 FUNCTION: Switches the remote control for TV, CBL/
SAT, VCR, DVD and AUDIO operation. Indicator lights up for the current mode. *Toenterthecoderegistrationmode,youneedtopress
FUNCTION and DISPLAY at the same time.
15 LIGHT : When pressed all buttons on the remote
control unit will light. The lighting will turn off if no operationsare performed within about 5 seconds. This button is used for performing operations in low-light situations.
16 VIEW MODE: Select the screen size. 17 ENT: Enters a channel selection when choosing with
the 0 – 9 buttons.
18 FLASHBACK: Return to the previous channel or input
external mode.
19 CH : Select the channel. 20 MUTE: Mute the sound. 21 MENU: Display the menu screen. 22 ENTER: Selectadesireditemonthescreen.
23 RETURN: Return to the previous menu screen.
24 FAVORITE CH
A,B,C,D: Select four preset favorite channels in four different categories. While watching, you can toggle the selected channels by pressing A, B, C and D.
25 FAVORITE: Register favorite channel. 26 CC: Display captions during closed-caption source. 27 AV MODE: Select an audio or video setting.
(STANDARD, MOVIE, GAME, USER, DYNAMIC (Fixed), DYNAMIC.)
NOTE
When using the remote control unit, point it at the TV. Seethe OPERATION MANUAL FOR HOTEL OPERATOR for details on the functions of each button.
3 2
114
5 6 4 8
17 15
16 18 19
7
20
10
9
21
11 23
24 25
12 13 27
22 26
Part names
CLONE DEVICE (Optional accessory)
1LEARN indicator: Lights up while storing the TV
settings from the TV to the CLONE DEVICE.
2DONE indicator: Lightsup whenstoringor transferring
is finished.
3TEACH indicator: Lights up while transferring the TV
settings from the CLONE DEVICE to the TV.
4MEMORY SELECT indicator: Indicateswhich memory
bank is selected.
5LEARN button: StoretheTVsettings fromtheTVtothe
CLONE DEVICE.
6TEACH button: TransfertheTVsettingsfromtheCLONE
DEVICE to the TV.
7ROOM button: TheTVturnsoff andentersthe ROOM
mode when the TV is in the MASTER mode. You can turnonorofftheTVwhentheTVisintheROOMmode.
8MASTER button: TheTV is turned on and enters the
MASTER mode when the TV is turned off. The menu screendisplayswhentheTVisturnedonintheMASTER mode or the ROOM mode. The TV is turned off and entersthe PPV TV mode whentheTV is in the Normal TV mode.
9DIAGNOSTICS button: Perform operational tests.
10 MEMORY SELECT button: Selectthememory bankto
store or transfer data.
11 TRANSPORT (RJ-11) connector: Connect to the TV
when storing or transferring the data.
NOTE
•When using the CLONE DEVICE, point it at the TV. •Seethe OPERATION MANUAL FOR HOTEL OPERATOR
for details on the functions of each button.
•YoucannotuseIR(infra-red)devicestosendsignalswhen
the TRANSPORT (RJ-11) connector is connected to the TRANSPORT terminal of the TV via an RJ-11 cable.
•TheTRANSPORT(RJ-11)connectorisdesignedfor hotel
communication. Do not use it for other purposes.
2
1
5 6 7 8 9 10
3 4
11
The CLONE DEVICE is only for hotel operators.
'"\ |

9
LC-32HT1U
TV (rear view)
Setting the TV
Preparation
Connect the AC plug for the TV into the power outlet.
1 3
Remove the terminal covers on the rear of the TV. Place the ferrite core in the space indicated in the below figure and bundle the cords properly with a cable clamp and cable tie.
CAUTION
•TO PREVENT RISK OF ELECTRIC SHOCK, DO NOT TOUCH UN-INSULATED PARTS OF ANY CABLES WITH THE
AC CORD CONNECTED.
Press down the upper hooks to remove the covers toward you.
2
Attach your antenna to the back of the TV.
4
To power outlet
NOTE
•The TV can be swiveled 10 degrees right and left with TV stand attached. •You cannot tilt the screen vertically.
AC cord
Preparation
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Cable without a CATV
converter
Combination
VHF/UHF antenna
Separate VHF/UHF
antenna
Connecting Antenna Cable
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!$( 
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!$( 
  
When connecting the RF cable to the TV set, do not tighten F-type connector with tools. If tools are used, it may cause damage to your TV set. (The breaking of internal circuit, etc.)
F-type connector should be finger-tightened only.
NOTICE
Antennas
Toenjoyaclearerpicture,useanoutdoorantenna.Thefollowingisabriefexplanationofthetypesofconnections thatareusedforacoaxialcable.Ifyouroutdoorantennausesa75-ohmcoaxialcablewithanF-typeconnector , plug it into the antenna terminal at the rear of the TV set.
Connecting to the PPV terminal box
Connect the TV and the PPV terminal box as shown.
RJ-11 cable (supplied by Pay Per View provider)
Coaxial cable (commercially available)
To power outlet To room antenna terminal
PPV terminal box
Hotel server
Connection for
a clear digital signal
Signal splitter
(commercially available)

10
LC-32HT1U
Preparation
“Off” is selected in OPC setting “On”or “On: Display” is selected in OPC setting
Simple operations for watching a TV program Turning on the power TV status indicator (POWER)
POWER indicator
Press POWER on the TV.
•POWERindicator (Blue): TheTV ison. (After afew seconds,an
image appears with sound.)
Turning off the power
Press POWER on the TV. •The TV enters standby mode and the image on the screen
disappears.
•The POWER indicator on the TV gradually turns off.
NOTE
•Ifyouare notgoing to usethis TV fora long periodof time,be
sure to remove the AC cord from the power outlet.
Lights off Lighting(Green)
ON OFF/Standby
Lighting (Blue) Lights off
TV status indicator (OPC)
*OPC: Optical Picture Control
POWER
OPC indicator
For hotel guests, use the remote control unit supplied by the Pay Per View provider to operate the TV.
IMPORTANT: IFTHEUNITDOESNOTPOWERON-UNPLUG THE AQUOS TELEVISION FROMTHEOUTLETANDREPEAT THE INSTALLATION STEPS. IF YOU STILL ENCOUNTER NO POWER, PLEASE CONTACT US AT 1-800-BE-SHARP.
Appendix
Removing the speakers
1 2
3
Remove the terminal covers. Perform the same steps for both sides. Unfasten the screws.
Perform the same steps for both sides.
Unplug the speaker cable. Perform the same steps for both sides.
CAUTION
•Do not remove the stand and speakers from the TV unless using an optional bracket to mount it. •Beforeperformingwork,spreadcushioningoverthebaseareatolaytheTVon.Thiswillpreventitfrombeing
damaged.
NOTE
•To re-attach the speakers, perform the steps in reverse order.
4 Lift, then remove the speaker box from the TV.

11
LC-32HT1U
Appendix
Removing the stand
Before detaching (or attaching) the stand, unplug the AC cord from the AC INPUT terminal.
CAUTION
•Do not remove the stand from the TV unless using an optional wall mount bracket to mount it. Before attaching/detaching stand •Before performing work make sure to turn off the TV. •BeforeperformingworkspreadcushioningoverthebaseareatolaytheTVon.Thiswillpreventitfrombeing
damaged.
NOTE
•To attach the stand, perform the above steps in reverse order.
2
Unfasten the four screws used to secure the stand in place.
1
Unfastenthescrewusedtosecurethe bracket in place.
Setting the TV on the wall
CAUTION
•Installing the Liquid Crystal Television requires special skill that should only be performed by qualified service
personnel. Customers should not attempt to do the work themselves. SHARP bears no responsibility for improper mounting or mounting that results in accident or injury.
Using an optional bracket to mount the TV •You can ask a qualified service professional about using an optional bracket to mount the TV to the wall. •Carefully read the instructions that come with the bracket before beginning work.
Hanging on the wall Wall mount bracket. (See the bracket instructions for details.)
About setting the TV angle
Vertical mounting Angular mounting
3
Detach the stand from the TV. (Hold the stand so it will not drop from the edge of the base area.)
10°
Appendix
•No power •Unit cannot be operated. •Remote control unit does not
operate.
•Picture is cut off/with sidebar
screen.
•Strangecolor, light color, or color
misalignment
•Power is suddenly turned off. •No picture •No sound
Problem Possible Solution
•Check if you pressed TV POWER on the remote control unit.
If the indicator on the TV is off, press POWER on the TV.
•Is the AC cord disconnected? •External influences such as lightning or static electricity may cause improper
operation.Inthiscase,operatetheunitafterfirstturning onthepower oftheTV or unplugging the AC cord and replugging it in after 1 or 2 minutes.
•Is the FUNCTION set correctly? Set it to the TV setting position.
•Are the batteries inserted with polarity (
+
,
Ð
) aligned? (See the OPERATION
MANUAL FOR HOTEL OPERATOR.)
•Are the batteries worn out? (Replace with new batteries.) •Are you using it under strong or fluorescent lighting? •Is a fluorescent light illuminated near the remote control sensor? •Is the image position correct? (See the OPERATION MANUAL FOR HOTEL
OPERATOR.)
•Are screen mode adjustments such as picture size made correctly? (See the
OPERATION MANUAL FOR HOTEL OPERATOR.)
•Adjust the picture tone. (See the OPERATION MANUAL FOR HOTEL
OPERATOR.)
•Is the room too bright? The picture may look dark in a room that is too bright. •Is the sleep timer set? (See the OPERATION MANUAL FOR HOTEL
OPERATOR.)
•Checkthepowercontrolsettings.(See theOPERATION MANUAL FOR HOTEL
OPERATOR.)
•The unit’s internal temperature has increased.
Remove any objects blocking vent or clean the vent.
•Istheconnection toothercomponentscorrect?(SeetheOPERATION MANULA
and the OPERATION MANUAL FOR HOTEL OPERATOR.)
•Is the correct input signal source selected for the connection? (See the
OPERATION MANUAL FOR HOTEL OPERATOR.)
•Is the correct input selected? (See the OPERATION MANUAL FOR HOTEL
OPERATOR.)
•Isthepictureadjustmentcorrect?(See theOPERATION MANUAL FOR HOTEL
OPERATOR.)
•Is the volume too low? (See the OPERATION MANUAL FOR HOTEL
OPERATOR.)
•Is“Variable”selectedin“OutputSelect”?(SeetheOPERATION MANUAL FOR
HOTEL OPERATOR.)
Troubleshooting
Cautions regarding use in high and low temperature environments •Whentheunitisused in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly
delayed. This is not a malfunction, and the unit will recover when the temperature returns to normal.
•Donotleavetheunitinahotorcoldlocation.Also,donotleavetheunitinalocationexposedtodirectsunlightornear
a heater, as this may cause the cabinet to deform and the Liquid Crystal panel to malfunction. Storage temperature:–4°F to
+
140°F (
–
20°C to
+
60°C)
Troubleshooting-Digital broadcasting
Error messages about reception of broadcast
Examples of error messages displayed on the screen
Error code Possible Solution
•Failed to receive broadcast.
E202
•No broadcast now.
E203
•Checkthe antenna cable. Check that the antenna iscorrectly
set up.
•Check the broadcast time in the program guide.

12
LC-32HT1U
Dimensions
Unit: inch/(mm)
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
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

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

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


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 



    

   








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

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


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





















   


   


 
 

13
LC-32HT1U
REMOVING OF MAJOR PARTS
1. Remove the AC Cover and Jack Cover 1.
2. Detach the SD Card Cover 2.
3. Remove the 1 lock screw 3and detach the Bracket Cover .
4. Remove the 4 lock screws 4and detach the Stand.
5. Remove the SP Wire(L) and SP Wire(R) 5.Remove the 4 lock screws 6, and detach the Speaker Box.
6. Remove the 13 lock screws 7, 9 lock screws 8, 3 lock screws 9, and detach the Rear Cabinet.
Jack Cover
1
AC Cover
1
3
Bracket
Cover
Stand
4
SP Wire (R)
SP
Wire (L)
Speaker Box
6
5
5
6
9
8
8
Rear
Ca inet
7
SD Card
Cover
2

14
LC-32HT1U
11. Remove the connectors,(P5703,P3103,P1105,P1801,P1802,P2501,P3805,P3101,P3201,P3202,P8801,P8901,
P9601,CN1,CN2,CN801,CN802,CN803,CN804,CN805,CN7502,CN7501,and CN7601) Remove the 1 Coaxial
Cable.
7. Remove the 7 lock screws 0and detach the Center Angle.
8. Detach the LCD Control Shield q.
9. Remove the 1 Rivet w from the Main Shield A and detach the Wire Holder.
Remove the 5 lock screws eand detach the Main Shield A.
10. Remove the connectors,(P11/P12). Remove the 2 lock screws rand detach the Digital Sub PWB.
P3101
P1105
P5703
CN803 CN801
CN802
CN804
CN805
P3103
P8901
P8801
P3202
P3203
P9601
P3201
P1801
P1802
CN1 CN2
CN7501
CN7601
CN7502
P3805
Coaxial Cable
P2501
LCD Control Shield
Main Shield A
Rivet
Wire Holder
10
11
Center Angle
12
13
Digital Sub PWB
14
P11 P12


15
LC-32HT1U
12. Remove the 4 lock screws tand detach the Digital PWB.
13. Remove the 4 lock screws yand FFC. Detach the Main Shield B.
14. Remove the 3 lock screws uand detach the Jack Cover C, and Earth Spring C.
15. Remove the 2 lock screws iand detach the Main PWB.
16. Remove the 3 lock screws oand the 1 lock screw p, and detach the AV PWB. Remove 1 lock screw aand
detach the Jack Cover B. Remove the 4 lock screws sand detach the Jack Cover A.
17. Remove the 6 lock screws dand detach the Power PWB.
18. Remove the 4 lock screws fand detach the LCD Control PWB.
19. Remove the KEY PWB.
19-1. Remove the 2 lock screws gfrom the Top Control Cover.
19-2. Remove the 3 lock screws hfrom the KEY PWB.

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" #$ 
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$ 
*

16
LC-32HT1U
20. Remove the 2 lock screws jand detach the SP (R) Terminal PWB.
21. Remove the 3 lock screws kand detach the Speaker Brackt (R).
22. Remove the 2 lock screws land detach the SP (L) Terminal PWB.
23. Remove the 3 lock screws ;and detach the Speaker Brackt (L).
24. Remove the 2 lock screws
31 and detach the R/C, LED PWB.
25. Remove the 2 lock screws
32 and detach the LCD Panel Module.
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


17
LC-32HT1U
TROUBLESHOOTING TABLE
YES
NO
No Picture/Sound signals of PPV come out
Is the PPV signal outputted to the following pins from the RJ-11 of
DIGITAL Sub unit Is the PPV signal inputted to the following pins from the RJ-11 of DIGITAL Sub unit
Pin(1) :<TV_CLK >,Pin(4) :<TV_DATA>
Check the Terminal External Box
Pin(2) :<MTI>
YES
Is the signal inputted to the following pin from P12 of connector of
DIGITAL Sub unit Is the signal outputted to the following pin from P12 of connector of DIGITAL Sub unit
Pin(2) : <RXD> Pin(1) :<TXD>
NO
Check the DIGITAL Sub unit
NO
Check the Digital unit
NO
NO
No PPV- RemoteControl(R/C) signal of PPV comes out
Is the PPV signal outputted to the following pins from the RJ-11 of
DIGITAL Sub unit
Pin(6) :<TVIR>
Is the signal inputted to the following pin from P11 of connector of
DIGITAL Sub unit
Pin(1) : <TVIR>
Check the AV unit
NO

1918
LC-32HT1U
LC-32HT1U
87109654321
A
B
C
D
E
F
G
H
1716 19181514131211
OVERALL WIRING DIAGRAM
37"はランプ９ヶ
BTO B
PA
DS
80 1 80 1
30 1
130
KM
LV SH
79 80
12
60 1 160
SP
SH
PE
14 1
17
71
15
19
19 20
12
MAIN UNIT
DIGITAL UNIT
POWER
UNIT
LCD CONTROL UNIT
DP
KM
KEY UNIT
RA
LED UNIT
DIGITAL S b UNIT
QCNW-D629WJPZ
FPC : QPWBMC494WJPZ FPC : QWBMC494WJPZ
DP
LV
RS-232C
CONTROL
U/V
TUNER
HDMI
AUDIO
INPUT
AC IN
15
17
39 40
12
79 80
12
39 40
12
DA
112
DA
112
QCNW-D080WJQZ
DS
19
SD-CARD
ﾃﾞｼﾞﾀﾙﾁｭｰﾅｰ
BOARD
To
BOARD
14 1
GT
AV UNIT
S-VIDEO
V-IN3
MON.-OUT
V-IN1,2
COMP-1,2
DIGITAL
AUDIO
OUTPUT
14
12
10 1
1
6
PG2
PA
12 1
PD
18
PE
112
SP-R
INVERTER
UNIT
61
10 1 61
To LAMP
To LAMP
To LAMP
To LAMP
To LAMP
To LAMP
To LAMP
外
販
ラ
イ
ン
用
CN7601
PG1
MI
10 1
10 1
DS
QCNW-D776WJQZ
QCNW-D775WJQZ QCNW-D769WJQZ QCNW-D772WJQZ
QCNW-D779WJQZ
QCNW-D784WJQZ
QCNW-D782WJQZ
QCNW-D788WJQZ
QCNW-D078WJQZ
FFC
QCNW-D766WJQZ
QCNW-D081WJQZ
RA
71
112
QCNW-D820WJQZ
CN7501
CN7502
To LAMP
41 1 3
P11 P12
41
P3801
P3102
41
P9001
QCNW-E207WJQZ
RJ-11


2120
LC-32HT1U
LC-32HT1U
87109654321
A
B
C
D
E
F
G
H
1716 19181514131211
SYSTEM BLOCK DIAGRAM
BtoB(40)
SC4002
Comp_Cb
Comp_Cr
YCbCr
Comp_Y
DIN_H
DIN_V
IC3301
IXB405WJ
Video Processer
YPbPr 16bit
CK,HD,VD
14.318MHz
Xtal
P_UATxD
P_UARxD
SLOW BUS
LVDS OUT
DTV IN
CVBS1
P3201
(30p FFC)
HDMI_H
MAIN
AGC,AFT
SP
(4p)
SP-J
BtoB (80) SC4001
EXT.
SP
Disclete
LPF
Buffer
Y/VOUT1
C/Comp1_Cb
Comp1_Cr
IC3302
DDR
IXB375WJ
128Mbit
AV to Main I/F (60FFC) SC3701
80 FFC80 FFC
IC4002
EEPROM
BR24L64F
POWER
INPUT
CHANNEL
VOL
KEY
CPU
M16C
KM
(5p)
LCD
LCD
PANEL
CN7
(2p)
R/L,U/D
P3203
(6pin )
I2C
Y/V
CCVBS2
C
YCbCr
HV
CPU BUS
Data 8bit
Address
CS[3:0],RD#,WR#
BCLK
SCL_A,SDA_A
SCL_TR,SDA_TR
I2C
EEPROM_SCL/SDA
24MHz
Xtal
AGC,AFT,OPC,AVPWB,
KEY1,KEY2,QTEMP
Thermister
TH1002
M1103J03
R/C
LED(3)
OPC
UART
SC1001
(40pin )
R/C
PNL+5V
AVPWB
KEY1,KEY2
A/D(7)
QTEMP
Flash
B515WJ
Mbit
PS_ON
D_POW
PNL-POW
EU_DPOW
+10V
BU+5V
I/O
LED(3)
IC3201
LVDS
Reciever
DS90C386
IC3202
LVDS
Transmitter
DS90C385A
IC4003
CPLD_3
B585WJ
PNL_H
PNL_V
Isoleted BUS
Data 8bit
Address
STB,OFL,OSC
INV+5V
RX_PD
PE (12p)
P1801
IC1014
CPLD_12
Buf
TEMP[3:1],O/S_SET,FRAME
P3202
(7pin )
POWER CIRCUIT
INV CIRCUIT
BU+3.3
V
+9V_
A
+5V_
A
+5
V
+3.3
V
+2.5V_D
D
+2.5V_T
R
+1.8V_T
R
+1.8V_V
A
+1.8V_V
L
5V
REG
+10V
REG_PNL
INT4
PD (8p)
P1802
+3.3V +1.8V+2.5V
+2.5V
IC3805
Audio SWITCH
NJM2750
IC3800
AV SWITCH
MM1630AQ
INPUT 3
S Video
INPUT 2
Component2
Monitor
Out
Main Y/V
TV
Main
Out
Video1
Video2
Video3
HDMI-Analog
INPUT 1
Component1
LR/Main
Main C/Cb
CVBS
YCVBS
CVBS
LR
YPbPr
DTV/CVBS
Monitor Out
DTV/YCVBS
DVI_LR
AV
OPTICAL
OUT
DA
(12p)
IC2501
MSPMSP3440
SIF_1
SC1_Out
IC2700
SOUND DSP
NJU26111
SC1_IN
SC2_IN
DACA_L/R
HDMI_SPDIF
IC2709
SOUND DIT
AK4353
IC2707
SW
LVX125T
I2S_IN
IC2702
A/D DIR DAC
AK4586VQ
SC4_IN SC2_Out
MONO_IN
SIF_2
DAC
MCK
I2S
RX1
D/A
A/D
TX
IC2502
Digital AMP
TA2024
RX2
DTV_SPDIF
Audio
Control
DTV/LR
SP_L/SP_R
RELAY
INPUT 4
HDMI
IC1912
HDMI RX
SII9021
RX_x8
HDMI_YPbPr
HDMI
AUDIO
HDMI_HV
RS232C
Rx/Tx
UPD4721
RS-232C
(D-SUB)
IC1104
VIDEO
0UT SW
M52055
CVBS
UART
IC1102
M62320FP
SDA3,
SCL3
SDA3,
SCL3
SDA_A,SCL_A,I2CEXT
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SCL3_3
IC2708
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M62320
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SCL3_2
OPT_CNOUT
AFT,AGC
D.POW
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SCL3_3
I2C_SDA55,
I2C_SCL55
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SCL3_3
DS
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I2C EXT
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SCL_A
I2CEXT
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CVBS
SIF
SYSTEM RESET
RESET
RA
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OPC LED
POW_LED_R
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Main Cr
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CVBS
YPbPr
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L/R
Video1
Video2
Video3
IC2507
BA4560
IC1913
IC1106
S
R/C
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LED
O1,O2
IC3808
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OPC
AFT,AGC
PWB
Revision
LED(3)
DSP RESET
HOTP_CONT
HDMI_WP
SDA3,
SCL3
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N_MAIN_WE0
N_MAIN_CE[1:0]
TX_PD
Buf
PNL_CLK
ERR Buf
PNL_PL1
AND +3.3V
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ERR_PNL
IC1003
EEPROM
BR24L08F
AC_DET
P_UATxD
P_UARxD
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STBY_POW
STBY_POW
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I2C_SCL5,I2C_SDA5
SW
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FET
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KM
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CN4
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PA
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CN6
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CN7
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BU18V
24V
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UR35V
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EU-D-POW
PE
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PD
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UR13V
UR6V
5V
MAIN
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Video4
D/CVBS
DIGITAL
Digital Tuner
TU8001 SD-CARD
SC8701
PH1_Lite
Digital AV decode &
Main CPU
IC8101
CPLD
IC9101
I2C_0
SLOW BUS
Vout
DDR
256Mb*2
IC8301
IC8302
FLASH
128Mb
IC8451
DS
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SPDIF
Digital Audio
UART
Demodulator
IC8601
DA
(
12
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TS
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EEPROM
IC845
3
isolate
I2C_1
DAC
IC880
1
LR
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1
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4
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IC10
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P900
1
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2322
LC-32HT1U
LC-32HT1U
87109654321
A
B
C
D
E
F
G
H
1716 19181514131211
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