SHARP LC-52LE640U, LC-52C6400U, LC-60LE640U, LC-60C6400U, LC-70LE640U Diagram

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LC-52/60/70LE640U,C6400U (1st Edition)

SERVICE MANUAL

No. S12V452LE640U

LCD COLOR TELEVISION

LC-52LE640U
LC-52C6400U
LC-60LE640U
LC-60C6400U
LC-70LE640U

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-70C6400U

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 3. DIMENSIONS

[1] DIMENSIONS (LC-52LE640U/C6400U)........ 3-1

[2]

DIMENSIONS (LC-60/70LE640U,C6400U)

CHAPTER 4. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS (LC-

52LE640U/C6400U)....................................... 4-1

[2] REMOVING OF MAJOR PARTS (LC-

60LE640U/C6400U)....................................... 4-7

[3] REMOVING OF MAJOR PARTS (LC-

70LE640U/C6400U)..................................... 4-13

.......... 3-2

[4] The location putting on the heat measure

sheet............................................................ 4-19

[5] Precautions for assembly ............................4-20

CHAPTER 5. ADJUSTMENT

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

[2] PUBLIC MODE SETTING PROCEDURE......5-15

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 (Center icon LED used) ........................6-1

[3] TROUBLESHOOTING TABLE ......................6-5

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

Parts Guide

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.

LC-52/60/70LE640U,C6400U (1st Edition)

LC52LE640U

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-52/60/70LE640U,C6400U (1st Edition)

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-52/60/70LE640U,C6400U (1st Edition)

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-52/60/70LE640U,C6400U (1st Edition)

LC52LE640U

OUTLINE

Service Manual

MAJOR SERVICE PARTS

PWB Unit

Ref No. Parts No. Description

N DKEYMF733FM84 MAIN Unit (LC-52LE640U/C6400U)
N DKEYMF733FM83 MAIN Unit (LC-60LE640U/C6400U)
N DKEYMF733FM82 MAIN Unit (LC-70LE640U/C6400U)
N DUNTKG015FM01 R/C, OPC Unit
N DUNTKG014FM01 ICON Unit
N DUNTKF800FM53 KEY Unit
N RUNTKA936WJQZ Wi-Fi Unit
N RUNTKA931WJQZ POWER/DRIVE Unit (LC-52LE640U/C6400U)
N RUNTKA932WJQZ POWER/DRIVE Unit (LC-60LE640U/C6400U)
N RUNTKA933WJQZ POWER/DRIVE Unit (LC-70LE640U/C6400U)
N DUNTKF975FM03 LCD CONTROL Unit (LC-52LE640U/C6400U)
N DUNTKF975FM02 LCD CONTROL Unit (LC-60LE640U/C6400U)
N DUNTKF975FM01 LCD CONTROL Unit (LC-70LE640U/C6400U)

NOTE: *1 Replace MAIN PWB Units (DKEYMF733FM**) in case of IC8401, IC3303 or IC8455 failure.

*2 Replace LCD CONTROL Units (DUNTKA975FM**) in case of IC5803 failure.

OTHER Unit

Ref No. Parts No. Description

N R1LK520D3GV00Z 52" LCD Panel Module Unit (LK520D3GV00Z)
N R1LK600D3GV00Z 60" LCD Panel Module Unit (LK600D3GV00Z)
N R1LK695D3GW80Z 70" LCD Panel Module Unit (LK695D3GW80Z)

IC For Exclusive Use Of The Service

Ref No. Parts No. Description Q'ty

IC2001 RH-iXD241WJNSQ IC R5F21368CNFP (Monitor Microcomputer) 1

Service Jigs

Ref No. Parts No. Description Q'ty

N QCNW-C222WJQZ Connecting Cord L=1000mm 80pins, LCD Control Unit to LCD Panel Unit 2
N QCNW-M580WJQZ Connecting Cord L=1000mm 41pins, Main to LCD Control Unit (LW) 1
N QCNW-L795WJQZ Connecting Cord L=1000mm 24pins, Main to POWER Unit (PD) 1
N QCNW-L807WJQZ Connecting Cord L=1000mm 4pins, Power to LCD Control Unit (PL) 1

iv

LC-52/60/70LE640U,C6400U (1st Edition)

LC52LE640U

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS

Service Manual

LCD
panel

Item

LC-70LE640U/

LC-70C6400U

Model:

Size

70Class (69 ˴"Diagonal)

1

/

2

60"Class (60

Resolution 2,073,600 pixels (1,920 x 1,080)

Model:

LC-60LE640U/

LC-60C6400U

1

Diagonal) 52"Class (52

/

"

32

Model:

LC-52LE640U/

LC-52C6400U

1

Diagonal)

/

"

32

TV-standard (CCIR) American TV Standard ATSC/NTSC System

VHF/UHF VHF 2-13ch, UHF 14-69ch

CATV 1-135ch (non-scrambled channel only)

TV
Function

Receiving
Channel

Digital Terrestrial
Broadcast (8VSB)

Digital cable

*1

(64/256 QAM)

2-69ch

1-135ch (non-scrambled channel only)

Audio multiplex BTSC System

Audio out 10 W x 2

HDMI 1 HDMI in with HDCP, Audio in (Ø 3.5 mm stereo jack), ARC

HDMI 2 HDMI in with HDCP

Back panel
vertical
inputs

HDMI 3 HDMI in with HDCP

HDMI 4 HDMI in with HDCP

AUDIO OUT Audio out (Ø 3.5 mm stereo jack)

USB 1 Photo/Music/Video mode, Software update

COMPONENT COMPONENT in

VIDEO 1 AV in

Terminals

Back panel
surface
inputs

VIDEO 2 AV in

PC IN

ANALOG RGB (PC) in (15-pin mini D-sub female connector),
Audio in (Ø 3.5 mm stereo jack)

RS-232C 9-pin D-sub male connector

75 ǡ Unbalance, F Type x 1 for Analog (VHF/UHF/CATV) and Digital (AIR/CABLE)

Optical Digital audio output x 1 (PCM/Dolby Digital)

Back panel
horizontal
inputs

ANT/CABLE

AUDIO IN Audio in (Ø 3.5 mm stereo jack)

DIGITAL AUDIO OUTPUT

ETHERNET Network connector

USB 2 Photo/Music/Video mode, Software update

OSD language English/French/Spanish

Power Requirement AC 120 V, 60 Hz

Power Consumption

Weight

Dimension
(WxHxD)
(inch)

*2

TV + stand 86.0 lbs./39.0 kg 61.7 lbs./28.0 kg 56.2 lbs./25.5 kg

TV only 79.4 lbs./36.0 kg 56.2 lbs./25.5 kg 49.6 lbs./22.5 kg

TV + stand

TV only

Operating temperature

*1

Emergency alert messages via Cable are unreceivable.

*2

The dimensional drawings are shown on the inside back cover.

228 W
(0.1 W Standby with AC 120 V)

47

19

/

63˴˴x39˴˴x13˴ 54˴˴x34˴˴x13˴ 47˴˴x30˴˴x13˴

19

63˴˴x38˴˴x3˴ 54˴˴x33˴˴x2˴ 47˴˴x29˴˴x2

/

32

32

7

/

/

32

32

+32q㧲 to +104q㧲 (0 to +40)

188 W
(0.1 W Standby with AC 120V

1

/

8

1

/

2

17

11

/

32

17

/

32

1

/

/

32

1

59

/

/

2

150 W

)

(0.1 W Standby with AC 120 V)

9

8

64

/

16

9

/

16

23

1

/

/

64

8

3

27

/

/

32

32

• As part of policy of continuous improvement, SHARP reserves the right to make design and specication changes for
product improvement without prior notice. The performance specication figures indicated are nominal values of production
units. There may be some deviations from these values in individual units.

1 – 1

tae

s

t

eaequpetcoe

cto

u

t

t

o

ope

ato

s

3

etasoteud

oSeectu

cto

LC52LE640U

CHAPTER 2. OPERATION MANUAL

[1] OPERATION MANUAL

TV (Front)

TV (Rear/Side)

LC-52/60/70LE640U,C6400U (1st Edition)

Service Manual

OPC sensor*

Center Icon illuminationRemote control sensor

* OPC: Optical Picture Control

POWER

button

MENU

button

INPUT

button

Channel
buttons
(

CH

Volume
buttons
(

VOL

USB 2

terminal

/)

/)

ETHERNET

terminal

Antenna/
Cable in

DIGITAL AUDIO
OUTPUT terminal

AUDIO IN terminal

(shared for PC IN
and HDMI 1) *3

*1*2

RS-232C terminal

PC IN terminal

VIDEO 2

terminals

VIDEO 1

terminals

COMPONENT

terminals

*1

AUDIO OUT terminal

*1

USB 1 terminal

HDMI 1 terminal

ARC: Audio Return Channel

HDMI 2 terminal

HDMI 3 terminal

HDMI 4 terminal

2 – 1

LC-52/60/70LE640U,C6400U (1st Edition)

Remote Control Unit

1

18

19

2

3

4
5

20
21

6

7

8
9

10
11

22

23
24

25
26

12

13

27

14

15

28
29

16

30

17

• When using the remote control unit, point it at the TV.

1 POWER: Switch the TV power on or enter standby.
2 TV, STB, DVD.VCR, AUDIO: Switches the remote

control for TV, STB, BD, DVD, VCR and AUDIO operation.
* To enter the code registration mode, you need to press
an appropriate button (STB, DVD

DISPLAY at the same time.

3 External equipment operational buttons: Operate the

external equipment.

4OPTION:Display the Link Operation Menu screen. This

button will function only when AQUOS LINK is used.

5 SLEEP: Set the sleep timer.
6 0-9: Set the channel.

٨

(DOT)

7
8CC:Display captions from a closed-caption source.
9AVMODE:Select an audio or video setting.
10 MUTE: Mute the sound.
11 VOL+/-: Set the volume.
12 MENU: Display the menu screen.
13 AAL: Display the TV+Web screen.
14 ˴/˴/˴/˴, ENTER: Select a desired item on the screen.
15 EXIT: Turn off the menu screen.
16 FAVORITE CH: Set the favorite channels.
17 A, B, C, D: Select 4 preset favorite channels in 4 different

categories.
While watching, you can toggle the selected channels by
pressing A, B, C and D.

18 DISPLAY: Display the channel information.
19 POWER (SOURCE): Turns the power of the external

equipment on and off.

20 FREEZE: Set the still image. Press again to return to

normal screen.

21 AUDIO: Selects the MTS/SAP or the audio mode during

multichannel audio broadcasts.

22 ENT: Jumps to a channel after selecting with the 0-9

buttons.

23 FLASHBACK: Return to the previous channel or external

input mode.
24 VIEW MODE: Select the screen size.
25 INPUT: Select a TV input source. (TV, HDMI1, HDMI2,

HDMI3, HDMI4, COMPONENT, VIDEO1, VIDEO2, PC IN,

Home Network (DLNA), USB)
26 CH˴/˴: Select the channel.
27 SmartCentral: Display the application window.
28 RETURN: Return to the previous menu screen.
29 NETFLIX: Display the Netfl ix screen.
30 FAV APP 1, 2, 3: You can assign your favorite

applications to these buttons.

٨

VCR or AUDIO) and

2 – 2

LC-52/60/70LE640U,C6400U (1st Edition)

QUICK REFERENCE

Attaching the Stand

• Before attaching (or detaching) the stand, unplug the AC cord.

• 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.

• Do not remove the stand from the TV unless using an optional wall mount bracket to mount it.

• Be sure to follow the instructions. Incorrect installation of the stand may result in the TV falling over.

• After attaching the stand to the TV, do not hold the stand when you put up, set up, move or lay down the TV.

Confirm that there are 12 screws (8 long screws

1

and 4 short screws) supplied with the stand unit.

Set the post for the stand unit onto the

Ԙ

2

polystyrene foam.
Attachthebasetothepost.

ԙ

Insert and tighten the 8 screws into the 8 holes

Ԛ

on the bottom of the base.

• Hold the stand unit securely with one hand, and then
tighten the screws.

Insert and tighten the 4 screws into the 4 holes on

4

the rear of the TV.

Short screws

2

2

1

1

1

FRONT

Insert the stand into the openings on the bottom of the TV.

3

• Make sure that the stand is firmly inserted into the TV.
Improper installation may result in tilting of the TV set.

Soft cushion

Long
screws

• To detach the stand, perform the steps in reverse order.

• In the installation procedure, be careful not to catch your
fingers between the TV set and the floor.

2 – 3

LC-52/60/70LE640U,C6400U (1st Edition)

LC52LE640U

CHAPTER 3. DIMENSIONS

[1] DIMENSIONS (LC-52LE640U/C6400U)

Service Manual

LC-52LE640U/LC-52C6400U

479/16(1208)

21

15

*1

7

/64(536)

3

/4(400)

815/32(215)

(771)

64

/

23

30

*1

Active area

*2

Thinnest part

(739)

32

/

3

29

(17)

64

/

43

4523/64(1152.0)

64

/

33

25

*1

(648.0)

(419)

2

/

1

16

(286)

64

/

17

11

(400)

4

/

3

15

41

5
(143)

/

64

131/8(333)

1

4

/

2

(114)

3

*2

/64(26.4)

1

27

/32(72)

2

AN-52AG4

6

(159)

Unit: inch (mm)

(51)

5°

64

/

1

2

(345)15

32

/

19

13

(391)

64

/

25

17

/

64

3 – 1

[2] DIMENSIONS (LC-60/70LE640U,C6400U)

LC-52/60/70LE640U,C6400U (1st Edition)

LC-70LE640U/LC-70C6400U

6319/32(1615)

*1

217/64(536)

153/4(400)

(1009)

64

/

47

39

(976)

16

/

7

38

(115)

64

/

34

4

6019/32(1538.88)

815/32(215)

*1

(865.62)

32

/

3

34

(538)

16

/

3

21

(190)

64

/

31

7

(400)

4

/

3

15

23

5
(136)

/

64

5
(137)

21/64(51)

*2

Unit: inch (mm)

31/2(89)

1

/8(333)

13

5°

25

/

64

759/
(201)

(263)

64

/

23

10

(461)20

32

/

5

18

(512)

64

/

11

64

LC-60LE640U/LC-60C6400U

5417/32(1385)

*1

217/64(536)

153/4(400)

(872)

32

/

11

34

(839)

2

/

1

33

(52)

16

/

1

2

5211/32(1329.12)

16

/

7

29

815/32(215)

*1

(747.63)

(470)

2

/

1

18

(230)

16

/

1

9

(400)

4

/

3

15

3

5
(146)

/

4

417/

(115)

1

13

/8(333)

32

AN-52AG4

7

*2

1

/64(27.9)

59

/64(74)

2

6
(169)

(156)

5°

64

/

9

6

(395)17

16

/

9

15

(442)

32

/

13

21

/

32

*1

Active area

*2

Thinnest part

AN-52AG4

3 – 2

LC-52/60/70LE640U,C6400U (1st Edition)

LC52LE640U

CHAPTER 4. REMOVING OF MAJOR PARTS

Service Manual

[1] REMOVING OF MAJOR PARTS (LC-52LE640U/C6400U)

1. Removing of Stand Unit and Rear Cabinet.

1. Remove the 4 lock screws and detach the Stand Unit .

2. Remove the 1 lock screw and detach the AC Cord Cover .

3. Disconnect AC wire and detach the AC Cord .

4. Remove the 4 VESA Hole Covers , 11 lock screws , 3 lock screws and 17 lock screws and detach the Rear Cabinet .

3

AC Cord Cover

2Stand Unit

4

[AC]

1

Rear Cabinet

10

[AC]

5

AC Cord

7

VESA Hole Cover

6

8

9

[Precaution when removing the rear cabinet]

If the rear cabinet is removed with the set upright, the speakers may fall; it results in connector disconnection. Therefore, never remove the rear cab­inet with the set upright.

Be sure to remove the rear cabinet with the screen side down.

Screws for fixing Speaker
and Rear Cabinet

[Precaution when mounting the rear cabinet]

Put the speakers in place with the screen side down, and attach the rear cabinet.

Since the speakers are fixed by the rear cabinet, they cannot be fixed without the rear cabinet.

Speaker incline.

4 – 1

Speaker fall down.

LC-52/60/70LE640U,C6400U (1st Edition)

[Precautions when fixing the Rear Cabinet]

When fixing the Rear Cabinet, be careful not to catch the backlight LED harness, speaker harness and other harnesses in it.

• The hooks on the external wall of the Rear Cabinet are fitted in the Front Cabinet Ass’y. After putting the Rear Cabinet in place, fit the hooks
securely; then tighten the screws.

(Work method of Rear Cabinet fixation)

Rear Cabinet
(Mat parts)

Front Cabinet Ass'y
(Luster parts)

There is a gap without the fingernail fitting in completely only when covering
with Rear Cabinet.
It becomes the factor of a gap increase of Front Cabinet Ass'y/Rear Cabinet
and the Rear Cabinet misregistration.

(Front Cabinet Ass’y/Rear Cabinet fingernail fixation place)

17 places

Please tighten the screw after Rear Cabinet is firmly pushed, and the
fingernail is confirmed.

4 – 2

LC-52/60/70LE640U,C6400U (1st Edition)

2. Removing of Speaker (L/R), KEY Unit and Fixing Metal Angle.

1. Detach the Bottom Cover

2. Disconnect the SP wire.

3. Detach the Speaker (L) , Speaker (R) .

4. Disconnect the RC wire.

5. Detach the KEY Unit Ass’y .

6. Disconnect the KM wire.

7. Remove the 2 lock screws and detach the Key Button from Key Button Cover .

8. Detach the KEY Unit from Key Button .

9. Remove the 19 lock screws and detach the Fixing Metal Angle .

MAIN Unit

KEY Unit Ass'y

KEY Unit

Key Button
Cover

4

[SP]

7

5

[RC]

8

[KM]

6Key Button

Fixing

10

Metal
Angle

9

1Bottom

Cover

[SP]

4 – 3

2Speaker (L)3Speaker (R)

3. Removing of Connectors

1. Disconnect the following connectors from the MAIN Unit. (PD, LV, PL, Cl, UB)

2. Disconnect the following connectors from the POWER/DRIVE Unit. (PD, LA)

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

[LA]

[LA]

[PD]

[PL]

[LW]

LC-52/60/70LE640U,C6400U (1st Edition)

MAIN UnitPOWER/DRIVE Unit

LCD CONTROL Unit

MAIN Unit

[PD]

[LV]

[PL]

[CI]

[UB]

4 – 4

LC-52/60/70LE640U,C6400U (1st Edition)

4. Removing of 60” LCD Panel Module Unit, LCD CONTROL Unit, MAIN Unit, POWER/DRIVE Unit.

1. Remove the 8 lock screws .

2. Detach the 14 Fixing Metal Angles .

3. Remove the 8 Hooks and detach the 60” LCD Panel Module Unit .

4. Remove the 2 Connecting Cords , 2 Ferrite Cores and 6 lock screws and detach the LCD CONTROL Unit .

5. Remove the 5 lock screws and detach the Shield (MAIN Unit) .

6. Remove the 3 lock screws and detach the MAIN Unit and Terminal Angle (Bottom) .

7. Remove the 6 lock screws and detach the POWER/DRIVE Unit and AC Cord Barrier .

8. Remove the 8 lock screws and detach the 2 Center Angles .

Shield
(MAIN Unit)

9

POWER/DRIVE Unit

14

13

Angle

2Fixing Metal

Angle

10Terminal Angle

(Bottom)

8

11

MAIN Unit

12

15AC Cord Barrier

2Fixing Metal

2 Fixing Metal

Angle

2

Fixing Metal
Angle

2 Fixing Metal

Angle

1

16

Center
Angle

17

1

16

1

3

60" LCD Panel
Module Unit

Hook

1

5Ferrite Core

Hook

6

7

LCD CONTROL Unit

4 Connecting

Cord

17 Center

Angle

4 – 5

5. Removing of R/C OPC Unit, ICON Unit, WiFi Unit.

1. Detach the R/C OPC Unit .

2. Disconnect the RA wire.

3. Remove the 1 lock screw and detach the ICON Unit .

4. Disconnect the CI wire.

5. Detach the WiFi Unit .

6. Disconnect the UB wire.

Front Cabinet Ass'y

LC-52/60/70LE640U,C6400U (1st Edition)

1R/C OPC Unit

[RA]

[CI]

3ICON Unit

[UB]

4 WiFi

2

Unit

4 – 6

LC-52/60/70LE640U,C6400U (1st Edition)

[2] REMOVING OF MAJOR PARTS (LC-60LE640U/C6400U)

1. Removing of Stand Unit and Rear Cabinet.

1. Remove the 4 lock screws and detach the Stand Unit .

2. Remove the 1 lock screw and detach the AC Cord Cover .

3. Disconnect AC wire and detach the AC Cord .

4. Remove the 4 VESA Hole Covers , 11 lock screws , 20 lock screws and detach the Rear Cabinet .

䎖

䎤䎦䎃䎦䏒䏕䏇䎃䎦䏒䏙䏈䏕

䎗

䎤䎦䎃䎦䏒䏕䏇

䎘

䎹䎨䎶䎤䎃䎫䏒䏏䏈

䎙

䎶䏗䏄䏑䏇䎃䎸䏑䏌䏗

䎕

䎃䎦䏒䏙䏈䏕

䎾䎤䎦䏀

䎔

䎛

䎚

[Precaution when removing the rear cabinet]

If the rear cabinet is removed with the set upright, the speakers may fall; it results in connector disconnection. Therefore, never remove the rear cab­inet with the set upright.

Be sure to remove the rear cabinet with the screen side down.

Screws for fixing Speaker
and Rear Cabinet

Speaker incline.

䎾䎤䎦䏀

䎵䏈䏄䏕䎃䎦䏄䏅䏌䏑䏈䏗

䎜

Speaker fall down.

[Precaution when mounting the rear cabinet]

Put the speakers in place with the screen side down, and attach the rear cabinet.

Since the speakers are fixed by the rear cabinet, they cannot be fixed without the rear cabinet.

4 – 7

LC-52/60/70LE640U,C6400U (1st Edition)

[Precautions when fixing the Rear Cabinet]

When fixing the Rear Cabinet, be careful not to catch the backlight LED harness, speaker harness and other harnesses in it.

• The hooks on the external wall of the Rear Cabinet are fitted in the Front Cabinet Ass’y. After putting the Rear Cabinet in place, fit the hooks
securely; then tighten the screws.

(Work method of Rear Cabinet fixation)

Rear Cabinet
(Mat parts)

Front Cabinet Ass'y
(Luster parts)

There is a gap without the fingernail fitting in completely only when covering
with Rear Cabinet.
It becomes the factor of a gap increase of Front Cabinet Ass'y/Rear Cabinet
and the Rear Cabinet misregistration.

(Front Cabinet Ass’y/Rear Cabinet fingernail fixation place)

17 places

Please tighten the screw after Rear Cabinet is firmly pushed, and the
fingernail is confirmed.

4 – 8

LC-52/60/70LE640U,C6400U (1st Edition)

2. Removing of Speaker (L/R), KEY Unit and Fixing Metal Angle.

1. Detach the Speaker (L) , Speaker (R) .

2. Disconnect the SP wire.

3. Disconnect the RC wire.

4. Detach the KEY Unit Ass’y .

5. Disconnect the KM wire.

6. Remove the 2 lock screws and detach the Key Button from Key Button Cover .

7. Detach the KEY Unit from Key Button .

8. Remove the 4 Hooks and detach the 2 Bottom Cover .

䎰䎤䎬䎱䎃䎸䏑䏌䏗

䎮䏈䏜䎃䎥䏘䏗䏗䏒䏑䎃䎦䏒䏙䏈䏕

䎚

䎾䎮䎰䏀

䎮䎨䎼䎃䎸䏑䏌䏗䎃䎤䏖䏖䏃䏜

䎮䎨䎼䎃䎸䏑䏌䏗

䎙

䎖

䎗

䎘

䎮䏈䏜䎃䎥䏘䏗䏗䏒䏑

䎶䏓䏈䏄䏎䏈䏕䎃䎋䎵䎌

䎾䎶䎳䏀

䎾䎵䎦䏀

䎫䏒䏒䏎 䎫䏒䏒䏎

䎛

䎥䏒䏗䏗䏒䏐䎃䎦䏒䏙䏈䏕

䎕

䎾䎶䎳䏀

䎶䏓䏈䏄䏎䏈䏕䎃䎋䎯䎌

䎔

4 – 9

3. Removing of Connectors

1. Disconnect the following connectors from the MAIN Unit. (PD, LV, PL, Cl, UB)

2. Disconnect the following connectors from the POWER/DRIVE Unit. (PD, LA)

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

LC-52/60/70LE640U,C6400U (1st Edition)

䎳䎲䎺䎨䎵䎒䎧䎵䎬䎹䎨䎃䎸䏑䏌䏗

䎾䎯䎤䏀

䎾䎯䎤䏀

䎾䎳䎧䏀

䎾䎳䎯䏀

䎯䎦䎧䎃䎦䎲䎱䎷䎵䎲䎯䎃䎸䏑䏌䏗

䎰䎤䎬䎱䎃䎸䏑䏌䏗

䎰䎤䎬䎱䎃䎸䏑䏌䏗

䎾䎯䎹䏀

䎾䎳䎧䏀

䎾䎯䎹䏀

䎾䎳䎯䏀

䎾䎦䎬䏀

䎾䎸䎥䏀

4 – 10

LC-52/60/70LE640U,C6400U (1st Edition)

4. Removing of 60” LCD Panel Module Unit, LCD CONTROL Unit, MAIN Unit, POWER/DRIVE Unit.

1. Remove the 21 Hooks and detach the 60” LCD Panel Module Unit .

2. Remove the 2 Connecting Cords , 2 Ferrite Cores and 6 lock screws and detach the LCD CONTROL Unit .

3. Remove the 5 lock screws and detach the MAIN PWB Shield .

4. Remove the 3 lock screws and detach the MAIN Unit and Terminal Angle (Bottom) .

5. Remove the 6 lock screws and detach the POWER/DRIVE Unit and AC Cord Barrier .

6. Remove the 12 lock screws and detach the 2 Support Ass’y .

7. Remove the 16 lock screws and detach the 4 VESA Angle Ass’ .

䎙

䎹䎨䎶䎤䎃䎤䏑䏊䏏䏈䎃䎤䏖䏖䏃䏜

䎹䎨䎶䎤䎃䎤䏑䏊䏏䏈䎃䎤䏖䏖䏃䏜

䎔䎖

䎤䎦䎃䎦䏒䏇䏈䎃
䎥䏄䏕䏕䏌䏈䏕

䎫䏒䏒䏎

䎔䎚

䎔䎚

䎔䎙

䎳䎲䎺䎨䎵䎒䎧䎵䎬䎹䎨
䎃䎸䏑䏌䏗

䎔䎙

䎔䎕

䎔䎔

䎫䏒䏒䏎

䎰䎤䎬䎱䎃䎳䎺䎥䎃䎶䏋䏌䏈䏏䏇

䎔䎙

䎹䎨䎶䎤䎃
䎤䏑䏊䏏䏈䎃䎤䏖䏖䏃䏜

䎔䎚

䎔䎙

䎹䎨䎶䎤䎃
䎤䏑䏊䏏䏈
䎤䏖䏖䏃䏜

䎔䎚

䎚

䎛

䎷䏈䏕䏐䏌䏑䏄䏏䎃䎤䏑䏊䏏䏈
䎋䎥䏒䏗䏗䏒䏐䎌

䎫䏒䏒䏎

䎜

䎰䎤䎬䎱䎃䎸䏑䏌䏗

䎔䎓

䎫䏒䏒䏎

䎶䏘䏓䏓䏒䏕䏗䎃䎤䏖䏖䎊䏜

䎔䎗

䎔䎘

䎔

䎙䎓䎅䎯䎦䎧䎃䎳䏄䏑䏈䏏䎃䎰䏒䏇䏘䏏䏈䎃䎸䏑䏌䏗

䎯䎦䎧䎃䎦䎲䎱䎷䎵䎲䎯

䎘

䎃䎸䏑䏌䏗

䎖

䎩䏈䏕䏕䏌䏗䏈䎃䎦䏒䏕䏈

䎶䏘䏓䏓䏒䏕䏗䎃䎤䏖䏖䎊䏜

䎔䎘

䎔䎗

䎗

䎕

䎦䏒䏑䏑䏈䏗䏌䏑䏊䎃䎦䏒䏕䏇

4 – 11

5. Removing of R/C OPC Unit, ICON Unit, WiFi Unit.

1. Detach the R/C OPC Unit .

2. Disconnect the RA wire.

3. Detach the ICON Unit .

4. Disconnect the CI wire.

5. Detach the Wi-Fi Unit .

6. Disconnect the UB wire.

䎩䏕䏒䏑䏗䎃䎦䏄䏅䏌䏑䏈䏗䎃䎤䏖䏖䏃䏜

LC-52/60/70LE640U,C6400U (1st Edition)

䎬䎦䎲䎱䎃䎸䏑䏌䏗

䎾䎦䎬䏀

䎐

䎾䎸䎥䏀

䎾䎵䎤䏀

䎕䎖

䎵䎒䎦䎃䎲䎳䎦䎃䎸䏑䏌䏗

䎔

4 – 12

LC-52/60/70LE640U,C6400U (1st Edition)

[3] REMOVING OF MAJOR PARTS (LC-70LE640U/C6400U)

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

1. Remove the 4 lock screws and detach the Stand Unit .

2. Remove the 1 lock screw and detach the AC Cord Cover .

3. Disconnect AC wire and detach the AC Cord .

4. Remove the 4 VESA Hole Covers , 9 lock screws and 21 lock screws and detach the Rear Cabinet Ass’y .

䎖

䎤䎦䎃䎦䏒䏕䏇䎃䎦䏒䏙䏈䏕

䎗

䎤䎦䎃䎦䏒䏕䏇

䎔

䎘

䎾䎤䎦䏀

䎶䏗䏄䏑䏇䎃䎸䏑䏌䏗

䎹䎨䎶䎤䎃䎫䏒䏏䏈䎃䎦䏒䏙䏈䏕

䎕

䎙

䎛

䎚

䎾䎤䎦䏀

䎜

䎵䏈䏄䏕䎃䎦䏄䏅䏌䏑䏈䏗䎃䎤䏖䏖䏃䏜

[Precautions when mounting and removing the rear cabinet]

Basically, there is no problem as in LC-60LE632U. However, the screws on both sides are not tightened together with the Rear Cabinet Ass’y.

The inside is fixed by the module and Speaker.

Therefore, it does not come away completely, but only one side can come off.

Tighten together with the
Rear Cabinet Ass'y.

Fix with the 70" LCD Panel Module Unit.

4 – 13

Only one side (outer) can come off.

[Precautions for assembly]

Push

Push

Push

Push

Push

Push

Push

Push

CAUTION

Set it so that there may not be a clearance between Front Cabinet Ass'y and Rear Cabinet Ass'y.

19

places

LC-52/60/70LE640U,C6400U (1st Edition)

There is a gap without the fingernail fitting
in completely only when covering with Rear Cabinet Ass'y.

(Front Cabinet Ass’y/Rear Cabinet Ass’y fingernail fixation place)

The fingernail is surely fixed when Rear cabinet Ass'y is
firmly pushed, and the gap disappears.

4 – 14

LC-52/60/70LE640U,C6400U (1st Edition)

2. Removing of Speaker (L/R) and KEY Unit.

1. Disconnect the SP wire.

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

3. Disconnect the RC wire.

4. Detach the KEY Unit Ass’y .

5. Disconnect the KM wire.

6. Remove the 2 lock screws and detach the Key Button from Key Button Cover .

7. Detach the KEY Unit from Key Button .

8. Remove the 4 Hooks and detach the 2 Bottom Cover .

䎰䎤䎬䎱䎃䎸䏑䏌䏗

䎮䏈䏜䎃䎥䏘䏗䏗䏒䏑䎃䎦䏒䏙䏈䏕

䎛

䎮䎨䎼䎃䎸䏑䏌䏗䎃䎤䏖䏖䏃䏜

䎮䎨䎼䎃䎸䏑䏌䏗

䎚

䎾䎮䎰䏀

䎗

䎘

䎮䏈䏜䎃䎥䏘䏗䏗䏒䏑

䎙

䎶䏓䏈䏄䏎䏈䏕䎃䎋䎵䎌

䎾䎶䎳䏀

䎾䎵䎦䏀

䎫䏒䏒䏎 䎫䏒䏒䏎

䎜

䎜

䎾䎶䎳䏀

䎥䏒䏗䏗䏒䏐䎃䎦䏒䏙䏈䏕

䎖

䎔

䎔

䎶䏓䏈䏄䏎䏈䏕䎃䎋䎯䎌

䎕

4 – 15

3. Removing of Connectors

1. Disconnect the following connectors from the MAIN Unit. (PD, LV, PL, Cl, UB)

2. Disconnect the following connectors from the POWER/DRIVE Unit. (PD, LA)

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

LC-52/60/70LE640U,C6400U (1st Edition)

䎳䎲䎺䎨䎵䎒䎧䎵䎬䎹䎨䎃䎸䏑䏌䏗

䎾䎯䎤䏀

䎾䎯䎤䏀

䎾䎳䎧䏀

䎾䎳䎯䏀

䎯䎦䎧䎃䎦䎲䎱䎷䎵䎲䎯䎃䎸䏑䏌䏗

䎰䎤䎬䎱䎃䎸䏑䏌䏗

䎰䎤䎬䎱䎃䎸䏑䏌䏗

䎾䎯䎹䏀

䎾䎯䎹䏀

䎾䎳䎯䏀

䎾䎦䎬䏀

䎾䎸䎥䏀

䎾䎳䎧䏀

4 – 16

LC-52/60/70LE640U,C6400U (1st Edition)

4. Removing of 70” LCD Panel Module Unit, LCD CONTROL Unit, MAIN Unit, POWER Unit.

1. Remove the 24 Hooks and detach the 70” LCD Panel Module Unit .

2. Remove the 2 Connecting Cords , 2 Ferrite Cores , 6 lock screws and detach the LCD CONTROL Unit .

3. Remove the 2 look screws and detach the 2 Spacers .

4. Remove the 6 lock screws and detach the POWER Unit .

5. Remove the 5 lock screws and detach the MAIN PWB Shield .

6. Remove the 3 lock screws and detach the MAIN Unit and Terminal Angle (Bottom) .

7. Remove the 12 lock screws and detach the 2 Support Ass’y .

8. Remove the 16 lock screws and detach the 4 VESA Angle Ass’ys .

䎔䎓

䎹䎨䎶䎤䎃䎤䏑䏊䏏䏈䎃䎤䏖䏖䏃䏜

䎹䎨䎶䎤䎃䎤䏑䏊䏏䏈䎃䎤䏖䏖䏃䏜

䎫䏒䏒䏎

䎔䎛

䎔䎛

䎔䎚

䎔䎚

䎳䎲䎺䎨䎵䎃䎸䏑䏌䏗

䎰䎤䎬䎱䎃䎳䎺䎥䎃䎶䏋䏌䏈䏏䏇

䎔䎔

䎛

䎔䎚

䎹䎨䎶䎤䎃䎤䏑䏊䏏䏈
䎃䎤䏖䏖䏃䏜

䎔䎕

䎔䎛

䎜

䎔䎚

䎹䎨䎶䎤䎃
䎤䏑䏊䏏䏈

䎔䎖

䎰䎤䎬䎱䎃䎸䏑䏌䏗

䎤䏖䏖䏃䏜

䎔䎛

䎔䎗

䎫䏒䏒䏎

䎷䏈䏕䏐䏌䏑䏄䏏䎃䎤䏑䏊䏏䏈
䎋䎥䏒䏗䏗䏒䏐䎌

䎫䏒䏒䏎

䎔

䎫䏒䏒䏎

䎶䏓䏄䏆䏈䏕

䎶䏘䏓䏓䏒䏕䏗䎃䎤䏖䏖䎊䏜

䎚䎓䎅䎯䎦䎧䎃䎳䏄䏑䏈䏏䎃䎰䏒䏇䏘䏏䏈䎃䎸䏑䏌䏗

䎯䎦䎧䎃䎦䎲䎱䎷䎵䎲䎯䎃䎸䏑䏌䏗

䎚

䎘

䎙

䎔䎙

䎗

䎔䎘

䎖

䎩䏈䏕䏕䏌䏗䏈䎃䎦䏒䏕䏈

䎕

䎦䏒䏑䏑䏈䏗䏌䏑䏊䎃䎦䏒䏕䏇

䎚

䎶䏓䏄䏆䏈䏕

䎙

䎶䏘䏓䏓䏒䏕䏗䎃䎤䏖䏖䎊䏜

䎔䎙

䎔䎘

4 – 17