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.
OUTLINE
This model is based on the LC-26/32/37D4U and is equipped with a redesigned speaker. This Service Manual
covers the modifications alone. For the other points, refer to the LC-26/32/37D4U Ser vice Manual.
CONTENTS
» LIST OF CHANGED PARTS ...........................................................................................................................2
» IMPORTANT SERVICE SAFETY PRECAUTION ........................................................................................5
» PARTS LIST ...............................................................................................................................................27
» PACKING OF THE SET .............................................................................................................................35
LC-37D6U
Page
SHARP CORPORATION
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LC-26D6U
LC-32D6U
LC-37D6U
LIST OF CHANGED PARTS
LC-26D4U → LC-26D6U
Ref.No.DescriptionLC-26D4ULC-26D6UNote
PWB ASSEMBLIES
DIGITAL UnitDUNTKD331FE12DUNTKD331FE08No parts changed
AV UnitDUNTKD352DE17DUNTKD352WE04No parts changed
KEY UnitDUNTKD353DE17DUNTKD353WE01No parts changed
R/C, LED UnitDUNTKD354DE17DUNTKD354WE02No parts changed
MAIN UnitDUNTKD376FE04DUNTKD376FM01Some parts changed
SP(L) Terminal Unit DUNTKD355WE01
SP(R) Terminal Unit DUNTKD356WE01
POWER UnitRDENCA138WJQZ
CABINET AND MECHANICAL PARTS
Please refer to a Parts list.
PACKING PARTS AND ACCESSORIES
Please refer to a Parts list.
RLCUCA024WJZZ
2
LIST OF CHANGED PARTS
LC-32D4U → LC-32D6U
Ref.No.DescriptionLC-32D4ULC-32D6UNote
PWB ASSEMBLIES
DIGITAL UnitDUNTKD331FE13DUNTKD331FE10No parts changed
AV UnitDUNTKD352DE18DUNTKD352WE05No parts changed
KEY UnitDUNTKD353DE18DUNTKD353WE01No parts changed
R/C, LED UnitDUNTKD354DE18DUNTKD354WE02No parts changed
MAIN UnitDUNTKD376FE05DUNTKD376FM02Some parts changed
SP(L) T erminal Unit DUNTKD355WE01
SP(R) T erminal Unit DUNTKD356WE01
POWER UnitRDENCA139WJQZ
CABINET AND MECHANICAL PARTS
Please refer to a Parts list.
PACKING PARTS AND ACCESSORIES
Please refer to a Parts list.
RLCUCA025WJZZ
3
LC-26D6U
LC-32D6U
LC-37D6U
LIST OF CHANGED PARTS
LC-37D4U → LC-37D6U
Ref.No.DescriptionLC-37D4ULC-37D6UNote
PWB ASSEMBLIES
DIGITAL UnitDUNTKD331FE14DUNTKD331FE11No parts changed
AV UnitDUNTKD352DE19DUNTKD352WE06No parts changed
KEY UnitDUNTKD353DE19DUNTKD353WE01No parts changed
R/C, LED UnitDUNTKD354DE19DUNTKD354WE02No parts changed
MAIN UnitDUNTKD376FE06DUNTKD376FM03Some parts changed
SP(L) Terminal Unit DUNTKD355WE01
SP(R) Terminal Unit DUNTKD356WE01
POWER UnitRDENCA140WJQZ
CABINET AND MECHANICAL PARTS
Please refer to a Parts list.
PACKING PARTS AND ACCESSORIES
Please refer to a Parts list.
RLCUCA026WJZZ
4
LC-26D6U
2
2
2
2
LC-32D6U
LC-37D6U
IMPORTANT SERVICE SAFETY PRECAUTION
Ë
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
» Use an AC voltmeter ha ving with 5000 ohm per v olt,
or higher, sensitivity or measure the A C v oltage drop
1. For continued safety, no modification of any circuit
should be attempted.
2. Disconnect AC power before servicing.
CAUTION: FOR CONTINUED
PROTECTION A GAINST A RISK OF
FIRE REPLACE ONLY WITH SAME
A V
TYPE FUSE.
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.
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
TO EXPOSED
METAL PARTS
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.
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
and shaded areas in the
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.
components having such features are identified b y " å"
Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement
accoutumé à toute vérification de sécurité et aux conseils suivants.
AVERTISSEMENT
de 0.15µF en série avec toutes les pièces métalliques
exposées du coffret et une terre connue comme une
1. N'entreprendre aucune modification de tout circuit.
C'est dangereux.
2. Débrancher le récepteur avant toute réparation.
PRECAUTION: POUR LA
PROTECTION CONTINUE
CONTRE LES RISQUES
VERIFICATIONS CONTRE L'INCEN-DIE ET
LE CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur, effectuer
les vérifications suivantes.
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.
T outes les vérifications doiv ent être refaites après av oir
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.)
Tous les courants mesurés ne doivent pas dépasser
0.5 mA.
Dans le cas contraire, il y a une possibilité de choc
électrique qui doit être supprimée avant de rendre le
récepteur au client.
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,
DVM
ECHELLE CA
1.5k ohm
10W
le dos du coffret, les couvercles ou blindages de réglage
et de compartiment, les réseaux de résistancecapacité, 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
0.15 µF
SONDE D'ESSAI
prise de courant de 120V. (Ne pas utiliser de
transformateur d'isolation pour cet essai).
• A l'aide de deux fils à pinces, brancher une résistance
de 1.5 kΩ 10 watts en parallèle a vec un condensateur
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
identifiées par la marque " å " et hachurées dans la
liste des pièces de remplacement
schématiques
.
et les
diagrammes
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.
6
LC-26D6U
LC-32D6U
LC-37D6U
Precautions for using lead-free solder
1 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:
L Fa
Indicates lead-free solder of tin, silver and copper.
2 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 ser vice branch in your area.
3 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, remov e 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 allo y ed 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
Part No,★DescriptionCode
ZHNDAi123250EJφ0.3mm250g(1roll)BL
ZHNDAi126500EJφ0.6mm500g(1roll)BK
ZHNDAi12801KEJφ1.0mm1kg(1roll)BM
Indicates lead-free solder of tin, silver and copper.
7
LC-26D6U
LC-32D6U
LC-37D6U
SPECIFICATIONS
ItemModel: LC-37D6U
LCD panel37" Advanced Super
View & BLACK TFT LCD
Model: LC-32D6UModel: LC-26D6U
32" Advanced Super
View & BLACK TFT LCD
26" Advanced Super
View & BLACK TFT LCD
Number of dots3,147,264 dots (1366 × 768 × 3 dots)
TV
Function
TV-standard (CCIR)
Receiving
Channel
VHF/UHF
CATV1-125ch
Digital Terrestrial
Broadcast (8VSB)
Digital cable
(64/256 QAM)
American TV Standard ATSC/NTSC System
VHF 2-13ch, UHF 14-69ch
2-69ch
1-135ch
Audio multiplexBTSC System
Brightness450 cd/m
2
Backlight Life60,000 hours (at Backlight Standard position)
Viewing anglesH : 170° V : 170°
Audio out10W × 2
Terminals
Rear
INPUT 1
INPUT 2
INPUT 3
AV in, COMPONENT in
AV in, COMPONENT in
S-VIDEO in, AV in
INPUT 4Audio in, HDMI in with HDCP
ANALOG ANTENNA
DIGITAL ANTENNA
MONITOR OUTPUT
DIGITAL AUDIO OUTPUT
CableCARD slot
75 Ω Unbalance, F Type for VHF/UHF/CATV in × 1
75 Ω Unbalance, F Type × 2 (for Digital Air × 1/Digital Cable in × 1)
S-VIDEO out, AV out
Optical Digital audio output × 1 (PCM/Dolby Digital)
68 pin PCMCIA × 1
OSD languageEnglish/French/Spanish
Power Requirement
Power Consumption
Weight
TV only
AC 120 V, 60 Hz
188 W
48.5 lbs./22.0 kg
146 W124 W
38.6 lbs./17.5 kg29.3 lbs./13.3 kg
12.1 lbs./5.5 kgStand8.8 lbs./4.0 kg8.2 lbs./3.7 kg
Dimension
(W × H × D)
(in inches)
TV + stand + speaker
TV + stand
TV + speaker
TV only
60.6 lbs./27.5 kgTV with stand
37
36
/64
3637/64
3637/64
3637/64
×
×
×
×
2811/32
2811/32
2515/16
221/8
×
×
×
×
123/64
123/64
431/64
41/4
47.4 lbs./21.5 kg37.5 lbs./17.0 kg
3149/64
×
2521/32
×
3149/64
3149/64
3149/64
×
×
×
2521/32
237/32
1913/32
×
×
×
113/8
113/8
431/64
41/4
2617/32
2617/32
2617/32
2617/32
×
×
×
×
2221/64
2221/64
205/16
1629/64
×
×
×
×
1035/64
1035/64
431/64
41/4
AccessoriesOperation manual ( ×1), Remote control unit ( ×1), AC cord ( ×1), "AAA" size
battery ( ×2), Cable clamp ( ×1), Cable tie ( ×1)
Operating temperature+ 32°F to + 104°F (0°C to + 40°C)
As 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.
8
Part names
TV (Front)
TV (Rear)
POWER indicatorOPC sensor
POWER button
INPUT button
Volume buttons (VOL / )
Channel
buttons
(CH / )
Remote control sensorOPC/DL indicator
* 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 initial channel (Air:2ch, Cable:1 or 2ch)
Audio setting initializes
Surround resets to off
Image position initializes
**Press SYSTEM RESET if the TV does not operate after starting up.
NOTE
Pressing RESET will not work if the TV is in standby mode.
Pressing RESET will not delete channel preset or secret number.