SHARP LC-60LE660U SERVICE MANUAL

TopPage

Pravin Mevada

LC-60/70LE660U,C6600U

SERVICE MANUAL

No. S84B1LC60LE66

1st Edition

LCD COLOR TELEVISION

LC-60LE660U
LC-60C6600U
LC-70LE660U

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.

CONTENTS

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRE-

CAUTION ............................................................i

PRECAUTIONS A PRENDRE LORS DE

LA REPARATION...............................................ii

PRECAUTIONS FOR USING LEAD-FREE

SOLDER ........................................................... iii

OUTLINE

MAJOR SERVICE PARTS ................................iv

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS ......................................... 1-1

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL .................................. 2-1

CHAPTER 5. ADJUSTMENT

[1] ADJUSTMENT PROCEDURE ......................5-1

CHAPTER 6. TROUBLESHOOTING TABLE

[1] Failure diagnosis by LED in front of cabinet........6-1

[2] LED flashing specification at the time of an

error (Power and Timer icon LED used)........6-1

[3] TROUBLESHOOTING TABLE ......................6-4

CHAPTER 7. MAJOR IC INFORMATIONS

[1] MAJOR IC INFORMATIONS .........................7-1

CHAPTER 8. OVERALL WIRING/SYSTEM BLOCK
DIAGRAM

[1] OVERALL WIRING DIAGRAM ......................8-1

[2] SYSTEM BLOCK DIAGRAM .........................8-2

LC-70C6600U

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS ................................................ 3-1

CHAPTER 4. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS (LC-

60LE660U/C6600U)....................................... 4-1

[2] REMOVING OF MAJOR PARTS (LC-

70LE660U/C6600U)....................................... 4-5

[3] The location putting on the heat measure

sheet .............................................................. 4-9

[4] Precautions for assembly............................. 4-10

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.

Parts Guide

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

LC-60/70LE660U,C6600U

LC-60LE660U

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.

CAUTION: FO R C O N T I N U E D PROTECTION
AGAINST A RISK OF FIRE REPLACE ONLY WITH
SAME TYPE FUSE.

F7001 (250V 5A)

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 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.

DVM

AC SCALE

1.5k ohm
10W

0.15µF

TEST PROBE

TO EXPOSED
METAL PARTS

CONNECT TO
KNOWN EARTH
GROUND

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

SAFETY NOTICE

Many electrical and mechanical parts in LCD color television have
special safety-related characteristics.

These characteristics are often not evident from visual inspection, nor
can protection afforded by them be necessarily increased by using
replacement components rated for higher voltage, wattage, etc.

Replacement parts which have these special safety characteristics are
identified in this manual; electrical components having such features

are identified by " " and shaded areas in the Replacement Parts List
and Schematic Diagrams.

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

For continued protection, replacement parts must be identical to those
used in the original circuit.

The use of a substitute replacement parts which do not have the same
safety characteristics as the factory recommended replacement parts
shown in this service manual, may create shock, fire or other hazards.

i

LC-60/70LE660U,C6600U

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux
conseils suivants.

•

AVERTISSEMENT

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 D'INCENDIE,
REMPLACER LE FUSIBLE

F7001 (250V 5A)

A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ
10 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 (corre­spondante au courant CA de pointe de 0.5mA).
Dans le cas contraire, il y a une possibilité de choc électrique qui
doit être supprimée avant de rendre le récepteur au client.

VERIFICATIONS CONTRE L'INCEN-DIE ET LE
CHOC ELECTRIQUE

Avant de rendre le récepteur à l'utilisateur, effectuer les vérifica­tions suivantes.

3.

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.

4.

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 résistancecapacité, les isolateurs mécaniques, etc.

5.

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. (Ne pas utiliser de transformateur d'isolation pour
cet essai).

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

AUX PIECES
METALLIQUES
EXPOSEES

DVM

ECHELLE CA

1.5k ohm
10W

µ

F

0.15

SONDE D'ESSAI

BRANCHER A UNE
TERRE CONNUE

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 identifiées par la marque " " 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.

ii

LC-60/70LE660U,C6600U

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

iii

LC-60LE660U

OUTLINE

Service Manual

MAJOR SERVICE PARTS

PWB Unit

NO. PARTS CODE DESCRIPTION

N DKEYMG460FM01 MAIN Unit (LC-60LE660U/C6600U)
N DKEYMG460FM02 MAIN Unit (LC-70LE660U/C6600U)
N DUNTKG477FM01 LCD CONTROL Unit (LC-60LE660U/C6600U)
N DUNTKG477FM02 LCD CONTROL Unit (LC-70LE660U/C6600U)
N DUNTKG448FM04 KEY Unit
N DUNTKG447FM04 RC/ICON Unit
N RUNTKB293WJZZ Wi-Fi Unit
N RUNTKB285WJQZ POWER/LED DRIVER Unit (LC-60LE660U/C6600U)
N RUNTKB286WJQZ POWER/LED DRIVER Unit (LC-70LE660U/C6600U)

NOTE: *1 Replace LCD CONTROL PWB Units (DUNTKG477FM01/02) in case of IC5807 failure.

OTHER Unit

NO. PARTS CODE DESCRIPTION

N R1JE601D3HA10Z 60" LCD PANEL Unit (Open Cell) (LC-60LE660U/C6600U)
N R1JE695D3HC50Z 70" LCD PANEL Unit (Open Cell) (LC-70LE660U/C6600U)

LC-60/70LE660U,C6600U

Service Jigs

NO. PARTS CODE DESCRIPTION Q'ty

N QCNW-C222WJQZ Connecting Cord L=1000mm 80pins, LCD Control Unit to LCD Panel Unit 2
N QCNW-F676WJQZ Connecting Cord L=1000mm 41pins, Main to LCD CONTROL Unit (LW) 1
N QCNW-M539WJQZ Connecting Cord L=1000mm 24-24/4pins, Power-Main/LCD CONTROL Unit (PD) 1

iv

LC-60/70LE660U,C6600U

LC-60LE660U

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS

Service Manual

1 – 1

LC-60LE660U

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL

LC-60/70LE660U,C6600U

Service Manual

2 – 1

LC-60/70LE660U,C6600U

※

３

2 – 2

LC-60/70LE660U,C6600U

2 – 3

LC-60/70LE660U,C6600U

2 – 4

LC-60LE660U

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS

LC-60/70LE660U,C6600U

Service Manual

3 – 1

LC-60/70LE660U,C6600U

LC- 70LE660U/LC- 70C6600U

Unit: inch (mm)

Unité: pouce (mm)

Unidad: pulgada (mm)

*1 Active area/Área activa/Zone active
*2 Thinnest part/Parte más delgada/Partie la plus mince
*3 Including projecting parts/Incluyendo partes salientes/Parties saillantes incluses

3 – 2

LC-60LE660U

CHAPTER 4. REMOVING OF MAJOR PARTS

Service Manual

[1] REMOVING OF MAJOR PARTS (LC-60LE660U/C6600U)

1. Removing of Stand Unit and Rear Cabinet Ass'y.

1. Remove the 4 lock screws (1) and detach the Stand Unit (2).

2. Remove the 1 lock screw (3) and detach the AC Cord Cover (4).

3. Disconnect AC Wire and detach the AC Cord (5).

4. Remove the 1 lock screw (6), 26 lock screws (7) and detach the Rear Cabinet Ass'y (8).

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LC-60/70LE660U,C6600U

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4 – 1

LC-60/70LE660U,C6600U

2. Removing of connectors, Bottom Cover and KEY Cover Ass'y.

1. Remove the 8 Hooks and detach the 2 Bottom Covers (1).

2. Disconnect the following connectors from the MAIN Unit. (PD, UB, SP, LW, RA)

3. Disconnect the following connectors from the LCD CONTROL Unit. (LW, PL)

4. Disconnect the following connectors from the POWER/LED DRIVER Unit. (PD, L1)

5. Disconnect the following connectors from the Wi-Fi Unit. (UB)

6. Disconnect the following connectors from the RC/ICON Unit. (RA)

7. Remove the 2 lock screws (2) and detach the KEY Cover Ass'y (3) and disconnect the KM connector.

8. Remove 3 hooks and detach the KEY Unit (4) from the KEY Cover Ass'y (3).

L1

PD

PL

LW

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*QQM *QQM

RA

UB

SP
LW
RA

PD

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UB

KM

4 – 2

LC-60/70LE660U,C6600U

3. Removing of Middle Cabinet Ass'y, Speaker Unit (L/R), RC/ICON Unit and Wi-Fi Unit.

1. Remove the 4 lock screws (1) and detach the Speaker Unit (L) (2), Speaker Unit (R) (3).

2. Remove the 5 lock screws (4) and detach the Middle Cabinet Ass'y (5).

3. Remove the 2 hooks and detach the RC/ICON Unit (6) from the Middle Cabinet Ass'y (5).

4. Remove the 2 hooks and detach the Wi-Fi Unit (7) from the Middle Cabinet Ass’y(5).

5. Remove the 2 connecting Cords(FFC80P) (8), 2 Ferrite Cores (9).

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4 – 3

LC-60/70LE660U,C6600U

4. Removing LCD CONTROL Unit, MAIN Unit, POWER/LED DRIVER Unit, Stand Fix Angle Ass'y and VESA
Angle Ass'y

1. Remove the 6 lock screws (1) and detach the LCD CONTROL Unit (2).

2. Remove the 6 lock screws (3) and detach the POWER/LED DRIVER Unit (4).

3. Remove the 2 lock screws (5) and detach the Terminal Angle (Side) (6).

4. Remove the 1 lock screw (7) and detach the Terminal Angle (Bottom) (8).

5. Remove the 3 lock screws (9) and detach the MAIN Unit (10)

6. Remove the 12 lock screws (11) and detach 2 Stand Fix Angle Ass'y (12)

7. Remove the 8 lock screws (13) and detach 4 VESA Angle Ass'y (14)

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4 – 4

[2] REMOVING OF MAJOR PARTS (LC-70LE660U/C6600U)

1. Removing of Stand Unit and Rear Cabinet Ass'y.

1. Remove the 4 lock screws (1) and detach the Stand Unit (2).

2. Remove the 1 lock screw (3) and detach the AC Cord Cover (4).

3. Disconnect AC Wire and detach the AC Cord (5).

4. Remove the 1 lock screw (6), 30 lock screws (7) and detach the Rear Cabinet Ass'y (8).

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LC-60/70LE660U,C6600U

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4 – 5

LC-60/70LE660U,C6600U

2. Removing of connectors, Bottom Cover and KEY Cover Ass'y.

1. Remove the 8 Hooks and detach the 2 Bottom Covers (1).

2. Disconnect the following connectors from the MAIN Unit. (PD, UB, SP, LW, RA)

3. Disconnect the following connectors from the LCD CONTROL Unit. (LW, PL)

4. Disconnect the following connectors from the POWER/LED DRIVER Unit. (PD, L1)

5. Disconnect the following connectors from the Wi-Fi Unit. (UB)

6. Disconnect the following connectors from the RC/ICON Unit. (RA)

7. Remove the 2 lock screws (2) and detach the KEY Cover Ass'y (3) and disconnect the KM connector.

8. Remove 3 hooks and detach the KEY Unit (4) from the KEY Cover Ass'y (3).

L1

PD

Ԙ Ԙ

PL

LW

RA

*QQM *QQM

UB

SP
LW
RA

PD

UB

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KM

4 – 6

LC-60/70LE660U,C6600U

3. Removing of Middle Cabinet Ass'y, Speaker Unit (L/R), RC/ICON Unit and Wi-Fi Unit.

1. Remove the 2 lock screws (1) and detach the Speaker Unit (L) (2), Speaker Unit (R) (3).

2. Remove the 6 lock screws (4) and detach the Middle Cabinet Ass'y (5).

3. Remove the 2 hooks and detach the RC/ICON Unit (6) from the Middle Cabinet Ass'y (5).

4. Remove the 2 hooks and detach the Wi-Fi Unit (7) from the Middle Cabinet Ass’y(5).

5. Remove the 2 connecting Cords(FFC80P) (8), 2 Ferrite Cores (9).

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4 – 7

LC-60/70LE660U,C6600U

4. Removing LCD CONTROL Unit, MAIN Unit, POWER/LED DRIVER Unit, Stand Fix AngleAss'y and VESA Angle
Ass'y.

1. Remove the 6 lock screws (1) and detach the LCD CONTROL Unit (2).

2. Remove the 6 lock screws (3) and detach the POWER/LED DRIVER Unit (4).

3. Remove the 2 lock screws (5) and detach the Terminal Angle (Side) (6).

4. Remove the 1 lock screw (7) and detach the Terminal Angle (Bottom) (8).

5. Remove the 3 lock screws (9) and detach the MAIN Unit (10)

6. Remove the 12 lock screws (11) and detach 2 Stand Fix Angle Ass'y (12)

7. Remove the 8 lock screws (13) and detach 4 VESA Angle Ass'y (14)

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4 – 8

[3] The location putting on the heat measure sheet

(1) Stick***
PSPAZC805WJKZ
COOLER:25X 25 X8t (x2)

LC-60/70LE660U,C6600U

4 – 9

LC-60/70LE660U,C6600U

[4] Precautions for assembly

1. Points to be checked and precautions when servicing the unit

Mount the main PWB Ass’y on the backlight chassis and check that the EMI-prevention parts are not peeled and twisted from the access holes. (The
EMI-prevention parts, conductive nonwoven fabric gaskets, must be seen from the access holes.)

[Countermeasure]

Attach the conductive nonwoven fabric gaskets on the shielded case on the main PWB.

(2) Stick ***

PSPA Z C69 0 WJZ Z
CONDUCTR:8x 25 5

(1) Prepare***

CANGKE406WJ31

TERM A NG SIDE A SSY

(1) Prepare***

LANGKE407WJ3W

TERM A NG BOTTOM

(2) Stick***

PSPA Z C6 91WJZ Z
CONDUCTR:8x 180

4 – 10