Sharp lc 46d92u, lc 52d92u schematic

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LC-46D92U/LC-52D92U

SERVICE MANUAL

No. SY6A3LC46D92U

LCD COLOR TELEVISION

LC-46D92U

MODELS

In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its orig-

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.

inal condition and only parts identical to those specified should be used.

LC-52D92U

CONTENTS

SAFETY PRECAUTION

IMPORTANT SERVICE SAFETY PRE-

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

PRECAUTIONS A PRENDRE LORS DE

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

PRECAUTIONS FOR USING LEAD-FREE

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

CHAPTER 1. OPERATION MANUAL

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

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

[3] DIMENSIONS ................................................ 1-8

CHAPTER 2. REMOVING OF MAJOR PARTS

[1] REMOVING OF MAJOR PARTS

(LC-46D92U).................................................. 2-1

[2] REMOVING OF MAJOR PARTS

(LC-52D92U)................................................ 2-11

CHAPTER 3. ADJUSTMENT

[1] ADJUSTMENT PROCEDURE ....................... 3-1

CHAPTER 4. TROUBLESHOOTING TABLE

[1] TROUBLE SHOOTING TABLE...................... 4-1

CHAPTER 6. OVERALL WIRING DIAGRAM/BLOCK
DIAGRAM

[1] OVERALL WIRING DIAGRAM ......................6-1

[2] SYSTEM BLOCK DIAGRAM .........................6-3

[3] MAIN BLOCK DIAGRAM............................... 6-5

CHAPTER 7. PRINTED WIRING BOARD

[1] MAIN UNIT PRINTED WIRING BOARD........7-1

[2] TERMINAL UNIT PRINTED WIRING

BOARD.......................................................... 7-9

[3] KEY UNIT PRINTED WIRING BOARD .......7-15

[4] R/C, LED UNIT PRINTED WIRING

BOARD........................................................7-16

[5] SP Unit ........................................................7-25

[6] FRC Unit ......................................................7-17

CHAPTER 8. SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIA-

GRAM............................................................8-1

[2] SCHEMATIC DIAGRAM ................................8-2

Parts Guide

CHAPTER 5. MAJOR IC INFORMATIONS

[1] MAJOR IC INFORMATIONS.......................... 5-1

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-46D92U/LC-52D92U

LC-46D92U

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: FOR CONTINUED PROTECTION
AGAINST A RISK OF FIRE REPLACE ONLY WITH
SAME TYPE FUSE.

F701 (250V 8A), F702 (250V 2A)
F4702 (250V 4A),
F4701/F4703 (250V 3A 127

O

C)

• 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

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.

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

TO EXPOSED
METAL PARTS

AC SCALE

1.5k ohm
10W

0.15µF

TEST PROBE

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-46D92U/LC-52D92U

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

F701 (250V 8A), F702 (250V 2A)
F4702 (250V 4A),
F4701/F4703 (250V 3A ~ 127

O

C)

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).

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.

DVM

ECHELLE CA

1.5k ohm
10W

µ

F

0.15

SONDE D'ESSAI

AUX PIECES
METALLIQUES
EXPOSEES

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

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-46D92U/LC-52D92U

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-46D92U

CHAPTER 1. OPERATION MANUAL

[1] SPECIFICATIONS

LC-46D92U/LC-52D92U

Service Manual

Item

LCD panel

Number of dots

TV-standard (CCIR)

TV
Function

Receiving
Channel

Audio multiplex

Audio out

Terminals

Rear

OSD language

Power Requirement

VHF/UHF

CATV
Digital Terrestrial

Broadcast (8VSB)

Digital cable

1

*

(64/256 QAM)

INPUT 1

INPUT 2

INPUT 3

INPUT 4

INPUT 5

INPUT 6

INPUT 7

ANTENNA

DIGITAL AUDIO OUTPUT

OUTPUT

46" Advanced Super View & BLACK TFT
LCD

6,220,800 dots (1920x1080x3 dots)

American TV Standard ATSC/NTSC System

VHF 2-13ch, UHF 14-69ch

1-135ch (non-scrambled channel only)

2-69ch

1-135ch (non-scrambled channel only)

BTSC System

15Wx2

AV in, COMPONENT in

S-VIDEO in, AV in

Audio in, COMPONENT in

HDMI in with HDCP

HDMI in with HDCP

Audio in, HDMI in with HDCP

Audio in, DVI-I in with HDCP

75ΩUnbalance, F Typex1 for Analog (VHF/UHF/CATV) and Digital (AIR/CABLE)

Optical Digital audio outputx1 (PCM/Dolby Digital)

Audio out

English/French/Spanish

AC 120 V, 60 Hz (FOR NORTH AMERICA)

Model: LC-46D92U Model: LC-52D92U

52" Advanced Super View & BLACK TFT
LCD

AC 110-240 V, 50/60 Hz (FOR OTHERS)

Power Consumption

TV+stand+speaker

Weight

TV+stand

TV+speaker 65.0 lbs./29.5 kg

287 W (0.7 W Standby with AC 120V)

80.5 lbs./36.5 kg

75.0 lbs./34.0 kg

TV only 59.5 lbs./27.0 kg

TV+stand+speaker

2

Dimension*
(WxHxD)
(in inches)

TV+stand

TV+speaker

TV only

Operating temperature

1

*

Emergency alert messages via Cable are unreceivable.

2

*

The dimensional drawings are shown on the inside back cover.

4413/16x3115/64x1211/

13

/

44

13

/

44

13

44

/

32°F to+104°F (0°C to+40°C)

+

15

16

16

16

64

/

31

x

x

x

28

27

x

7

8

4

/

x

13

32

/

x

57

12

4

64

11

64

/

64

/

57

64

/

328 W (0.7 W Standby with AC 120V)

92.6 lbs./42.0 kg

87.1 lbs./39.5 kg

77.2 lbs./35.0 kg

71.7 lbs./32.5 kg

50

5011/

5011/

5011/

11

/

3

64

34

x

3

64

34

x

1

64

32

x

9

64

30

x

11

8

/

8

/

64

/

16

/

64

12

/

x

11

64

/

12

x

59

64

4

/

x

59

64

/

4

x

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.

Optional accessory

The listed optional accessory is available for the Liquid
Crystal Television. Please purchase it at your nearest shop.

Additional optional accessories may be available in the near
future. When purchasing, please read the newest catalogue for
compatibility and check the availability.

1 – 1

Part name

Wall mount bracket

Model number

AN-52AG1

LC-46D92U/LC-52D92U

[2] OPERATION MANUAL

Part names

TV (Front)

Remote control sensor

OPC sensor*

NOTE

*OPC: Optical Picture Control

TV (Rear)

Channel buttons

(CH /)

Volume
buttons

(VOL /)

HDMI terminal (INPUT 4)

OPC indicator*

SLEEP indicator**

POWER indicator**

INPUT button

AC INPUT terminal

POWER button

HDMI terminal (INPUT 5)

HDMI terminal (INPUT 6)

DVI terminal (INPUT 7)

DIGITAL AUDIO OUTPUT terminal

AUDIO terminal (INPUT 7)

AUDIO terminals (INPUT 6)

Antenna/Cable in

INPUT 3 terminals

INPUT 2 terminals

INPUT 1 terminals

AUDIO
OUTPUT
terminals

RS-232C
terminal

1 – 2

Part names

LC-46D92U/LC-52D92U

Remote control unit

114

2
3

4

5

6

7

8

9

10

11 23

12

13 27

15

16

17

18

19

20

21

22

24

25

26

1 TV POWER: Switch the TV power on or enters standby.
2 DISPLAY: Display the channel information.

3 SOURCE POWER: Turns the power of the e xternal

equipment on and off.

4 External equipment operational buttons: Operate the

external equipment.

50…9:Set the channel.
6 (DOT):
7INPUT:Select a TV input source. (TV, INPUT 1, INPUT

2, INPUT 3, INPUT 4, INPUT 5, INPUT 6, INPUT 7)

8VOL/:Set the volume.
9 SURROUND: 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: Selects the MTS/SAP or the audio mode during

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.

* To enter the code registration mode, you need to press

FUNCTION and DISPLAY at the same time.

15 LIGHTD: When pressed all buttons on the remote

control unit will light. The lighting will turn off if no
operations are 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: Jumps to a channel after selecting with the 0…9

buttons.

18 FLASHBACK:Return to the previous channel or external

input mode.

19

CH / : Select the channel.
20 MUTE: Mute the sound.
21 MENU: Display the menu screen.
22 ////ENTER: Select a desired item on the

screen.

23 RETURN: Return to the previous menu screen.
24 FAVORITE CH

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.

25 FAVORITE: Set the favorite channels.
26 CC: Display captions from a closed-caption source.
27 AV MODE: Select an audio or video setting. (When the

input source is TV, INPUT 1, 2 or 3: STANDARD, MOVIE,

GAME, USER, DYNAMIC (Fixed), DYNAMIC. When the

input source is INPUT 4, 5, 6 or 7: STANDARD, MOVIE,

GAME, PC, USER, DYNAMIC (Fixed), DYNAMIC)

NOTE

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

1 – 3

LC-46D92U/LC-52D92U

Appendix

Removing the stand

Before detaching (or attaching) 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 w ork make sure to turn off the TV.
Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being
damaged.

12

Unfasten the four screws used to
secure the stand in place.

NOTE

To attach the stand, perform the above steps in reverse order.

Hex key

Detach the stand from the TV.
(Hold the stand so it will not drop
from the edge of the base area.)

3

Attach the stand hole covers.
(Align the tabs of the covers with the
holes on the TV, and press until they
lock into place.)

Setting the TV on the wall

CAUTION

This TV should be mounted on the wall only with the AN-52AG1 (SHARP) wall mount bracket. The use of other
wall mount brackets may result in an unstable installation and may cause serious injuries.
Installing the TV 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 AN-52AG1 bracket to mount the TV to the
wall.
Carefully read the instructions that come with the bracket before beginning work.

Hanging on the wall

AN-52AG1 wall mount bracket.
(See the bracket instructions for details.)

Vertical mounting

NOTE

Detach the cable clamps on the rear of the TV when using the optional mount bracket.

Angular mounting

About setting the TV angle and height adjustment

Angle of TV

1

Height

2

Adjustment

0/5/10/15/20°

163/64( 5)/0/

--

63

1

/64(5)

++

canbemoved1
(5) up or down

Unit: inch (cm)

1 – 4

1

63

/

64

2

Appendix

Troubleshooting

LC-46D92U/LC-52D92U

Problem

No power

Unit cannot be operated.

Remote control unit does not
operate.

Picture is cut off/with sidebar
screen.

Strange color, light color, or color
misalignment

Power is suddenly turned off.

Possible Solution

Check if you pressed TV POWER on the remote control unit. If the
indicator on the TV does not light up, press POWER on the TV.
IstheACcorddisconnected?
Has the power been turned on?

External in influences such as lightning, static electricity, may cause improper
operation. In this case, operate the unit after first turning on the power of the TV 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 batteries inserted with polarity (,) aligned?
Are 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?
Are screen mode adjustments such as picture size made correctly?

Adjust the picture tone.
Is the room too bright? The picture may look dark in a room that is too bright.
Check the input signal setting.

Is the sleep timer set?
Check the power control settings.
The unit's internal temperature has increased. Remove any objects blocking vent
or clean.

+

-

No picture

No sound

Is connection to other components correct?
Is correct input signal source selected after connection?
Is the correct input selected?
Is picture adjustment correct?
Is "On" selected in "Audio Only"?
Is a non-compatible signal being input?

Is the volume too low?
Is "Variable" selected in "Output Select"?
Have you pressed MUTE on the remote control unit?

Troubleshooting-Digital broadcasting

The error message about reception of broadcast

The example of an error
message displayed on a screen

Failed to receive broadcast.

No broadcast now.

Error code

E202

E203 Check the broadcast time in the program guide.

Check the antenna cable. Check that the antenna is correctly
setup.

Possible Solution

Cautions regarding use in high and low temperature environments

When the unit is used 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.
Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near 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)

-

+

-

+

1 – 5

LC-46D92U/LC-52D92U

Preparation

Connecting a PC

When connecting to a PC with an HDMI terminal. (INPUT 4, 5 or 6)

HDMI cable

PC

NOTE

The HDMI terminals only support digital signal.

When connecting to a PC with a DVI terminal. (INPUT 7)

PC with analog
RGB terminal

(commercially available)

RGB/DVI conversion
cable (commercially
available)

Ø 3.5 mm stereo
minijack cable
(commercially available)

NOTE

If you are connecting the TV to a PC with a DVI terminal, use a DVI cable (commercially available) instead of a RGB/DVI
conversion cable.

PC compatibility chart

It is necessary to set the PC format correctly to display XGA and WXGA signal.

PC Horizontal Frequency VESA StandardResolution Vertical Frequency

VGA

PC

XGA 1024 x 768

WXGA 1360 x 768

SXGA 1280 x 1024

* DVI input only.

720 x 400

640 x 480

800 x 600SVGA

+* 1400 x 1050 60 Hz O

31.5 kHz

31.5 kHz

37.9 kHz

37.5 kHz

35.1 kHz

37.9 kHz

48.1 kHz

46.9 kHz

48.4 kHz

56.5 kHz

60.0 kHz

47.7 kHz

64.0 kHz

64.0 kHzSXGA

75.0 kHzUXGA* 1600 x 1200 60 Hz O

70 Hz

60 Hz
72 Hz
75 Hz
56 Hz
60 Hz
72 Hz
75 Hz
60 Hz
70 Hz
75 Hz
60 Hz
60 Hz

O
O
O
O
O
O
O
O
O
O
O
O

DDC is a registered trademark of Video Electronics Standards Association.
Power Management is a registered trademark of Sun Microsystems, Inc.
VGA and XGA are registered trademarks of International Business Machines Co., Inc.

1 – 6

Basic adjustment settings

Menu items for TV/INPUT 1/2/3 Menu items for HDMI/DVI

LC-46D92U/LC-52D92U

OPC
Backlight
Contrast
Brightness
Color
Tint
Sharpness
Advanced

Color Temp.
Black
Fine Motion Advanced
3D-Y/C
Monochrome
Film Mode
Range of OPC

Reset

Treble
Bass
Balance
Surround
Reset

Picture

Audio

Power Control

Picture

OPC
Backlight
Contrast
Brightness
Color
Tint
Sharpness
Advanced

Color Temp.
Black
Fine Motion Advanced
Monochrome
Film Mode
Range of OPC

Reset

Audio

Treble
Bass
Balance
Surround
Reset

Power Control

No Signal Off
No Operation Off

EZ Setup
CH Setup
Antenna Setup-DIGITAL
Input Skip
Input Label
Parental CTRL
Position
Language
Reset

Audio Only
Digital Noise Reduction
Input Select
Output Select
Color System
Caption Setup
Program Title Display
Favorite CH

Setup

Option

Digital Setup

No Signal Off
No Operation Off

Setup

Input Skip
Input Signal
Auto Sync.
Input Label
Fine Sync.
Position
Language
Reset

Option

Audio Only
Digital Noise Reduction
HDMI Setup
Input Select
Output Select

NOTE

Some menu items may not be displayed depending on the
selected input source.

Audio Setup

1 – 7

LC-46D92U/LC-52D92U

[3] DIMENSIONS

1 – 8

LC-46D92U

CHAPTER 2. REMOVING OF MAJOR PARTS

Service Manual

[1] REMOVING OF MAJOR PARTS (LC-46D92U)

LC-46D92U/LC-52D92U

1. Detach the SD Card Cover

1

SD Card Cover

1

Rear Cabinet

.

2. Remove the 10 lock screws .

3. Remove the 6 lock screws .

2

3

Rear Cabinet

2

3

2

3

3

222

2

2 2 2 2

3

3

2 – 1

LC-46D92U/LC-52D92U

STAND ST COV-R

LOCK

INSERT

LOCK

INSERT

4. Remove the 18 lock screws and detach the Stand Set Cover .

4

44

4

5. Remove the 8 lock screws and detach the Chassis Fix Angle.

5

4

4 4

44

5

STAND FIX ANG

2 – 2

6. Remove the 4 lock screws and detach the Tray Angle.

KS BRIDGE ANGLE

MAIN-SHIELD

㪤㪘㪩㪢㪑㩷㩷㩷㩷㩷㩷㩿㬍㪍㪀

OK

NG

CAUTION

CHASSIS

MAIN-SHIELD

CAUTION

NG

OK

The Main shield is
got in the AV terminal angle.

䍀㪙䍁㩷㪭㪠㪜㪮

B

Position of screw

Insert

Tray

Hole

Hol

Main shield

6

LC-46D92U/LC-52D92U

6 6

Chassis Fix Angle

6

6

7. Remove the 6 lock screws and detach the Main Shield.

8. Remove the 2 lock screws .

7

8

8

Chassis Fix Angle

7

7

7

7

7

7

2 – 3

LC-46D92U/LC-52D92U

LA

Connect Wire (LB)
MAIN-INV

Connect Wire (LA)
POWER-INV

LA

Brown wire side
(LA wire)

Black wire side
(LA wire)

LB

WHITE

BLACK

GRAY

BROWN

BLACK

GRAY

Lock socket side

Lock socket side

SP-R

Connect Wire (SP-R)
TERMINAL-SP-R HAND

SP-L

Connect Wire (SP-L)
TERMINAL-SP-L HAND

Shape (LB)

WH

Shape (RA, SP-R, LA,LB)

WH

Shape (SP-L, LA) ×2

WH

Shape (LA)

WH

Screw)

Shape (RA, LA, LB)

WH

Shape (RA)

WH

Shape (RA, SP-L-R)

WH

Connect Wire (LA)
POWER-INV

*CAUTION

Wire LA is to spread the right and left equally.

OK

NG

RA wire

Rib of CAB-B

WH

Shape (SP-L, LA, LB)

WH

㪚㪟㩷㪝㪠㪯㩷㪘㪥㪞㩷㪪㪧㪄㪩㩷㪘㪪㪪㵭㪰

㪚㪟㩷㪝㪠㪯㩷㪘㪥㪞㩷㪪㪧㪄㪣

9. Remove all the connectors from PWBs.

10.Remove the 4 lock screws .

11.Remove the 2 lock screws and detach the Speaker L&R.

9

10

9

9

10

2 – 4

12.Remove all the connectors from PWBs.

KM

LV

RA

Connect Wire (RA)

IF-LED

LED UNIT

LED UNIT ASS’Y

OK

NG

LP

Connect Wire (LV)
MAIN-LCD CONT

Open Side

(WH)

WH

Connect Wire (KM)

MAIN-TOPCOVER ASS’Y

Connect Wire (LP)
MAIN-LCD CONT

CAUTION

Straight line
(Don't make a wire

have looseness.)

Push

Push

Push the holder part

No good

Push

Do not push the wire part

KM

INSERT

HANG

PH

PH

Connect Wire(PH)
POWER-LCD CONT

LP

PH

KS TOP COVER ASS'Y

PWB ASEMBLY UNIT

LC-46D92U/LC-52D92U

13.Remove the 7 lock screws and PWB Ass’y unit.

12

12

12

12

12

1212

12

2 – 5

LC-46D92U/LC-52D92U

FRC_UNIT

FRC_PWB_ANG

LCDCON-FRC (11P) WIRE

IC6001 COOL
(10x10x2)

IC5801 COOLL
(20x20x2)

FRC PWB SET ANG

SILICON GREASE

SILICON GREASE

*CAUTION

Designation in the installation
direction

FRC-LCDCON (FPC)
(Both side)

FRC side

(005722)

Part indication

LCD side

Panel Module Ass’y is fitted to the
bottom right side.

INSIDE

PANEL MODULE ASS’Y

INSIDE

PANEL BACK Side

14.Remove the 4 lock screws and detach the FRC PWB Angle.

15.Remove the 4 lock screws and detach the FRC PWB Set Angle.

13

14

14

14

16.Remove the 2 lock screws and detach the Panel Module Ass’y.

15

14

14

13

13

13 13

15

15

2 – 6

17.Remove the 4 lock screws and detach the CH Fix Angle U L/R.

PANEL_MODULE

KS CAB-A

CH FIX ANG U-RL

WH

WH

Barrier seet

Fitted to the panel tightness.

Tape is torn off..

WH

SP-L UNIT

(DSETUD744FMV1)

CH FIX ANG SP-L

Red

16

LC-46D92U/LC-52D92U

16

18.Remove the 2 lock screws and detach the SP-L Unit.

17

16 16

16

17

17

2 – 7

LC-46D92U/LC-52D92U

SP-R UNIT

Red

CH FIX ANG SP-R

WH

Open Side (WH)

- VOL +

CH

INPUT

POWER

KEY UNIT

NG

OK

A

A

NG

OK

B

KS TOP COVER

The guide pin
of positioning x3

B

19.Remove the 2 lock screws and detach the SP-R Unit.

18

18

18

20.Remove the 2 lock screws , and detach the Top Cover.

19

19

19

2 – 8

21.Remove all the connectors from PWBs.

LV

LB

SP

SAFCMA

PH

A

Connect (SA) (FC) (MA)
MAIN-TERMINAL

Connect Wire (PD)
MAIN-POWER

LA

PH

PD

KM

RA

[A] VIEW

CAUTION

A direction for the Horizontal

Connect (TUNER)
MAIN-AV_TERMINAL

CAUTION

The LB wire is under the
PD wire and PH wire.

<CAUTION>

No good Wire parts is pushed.

<CAUTION>

Good Holder part is pushed.

No good

Good

OK

NG

CAUTION

Good

Holder
part

LP

TO POWER

PH W

FOR
LCD COONT UNI

CAUTION

Note connected

position.

FOR
MAIN UNIT

Tape side

PD

㪘㪭㪶㪫㪜㪩㪤㪶㪘㪥㪞㩷㪘㪪㪪㩾㪰

LC-46D92U/LC-52D92U

22.Remove the 2 lock screws , and , and detach the AV Terminal Angle Ass’y.

20 21

22

20

20

21

22

2 – 9

LC-46D92U/LC-52D92U

POWER UNIT

Power unit is fitted to the
bottom left side.

Fit

POWER UNIT

Fit

POWER UNIT

Insert

POWER UNIT

Fit

POWER UNIT

The screw is
unnecessary.
(×3)

TERMINAL UNIT

23.Remove the 7 lock screws and detach the Power unit.

23

23

23

24.Remove the 4 lock screws and detach the Terminal unit.

24

23

23

23

2323

24

24

24

24

2 – 10

25.Remove the 5 lock screws and 2 lock rivets detach the Main unit and Radiator A Main.

Stick to the center of the IC

MAIN UNIT

MAIN UNIT

KS TRAY CHASSIS

RADIATOR-A-MAIN

COOL SHEET
(16x11x2)

COOL SHEET

(20x20x2)

SILICON GREASE

RIVET

25

26

25 25

26

25

26

LC-46D92U/LC-52D92U

25

[2] REMOVING OF MAJOR PARTS (LC-52D92U)

1. Detach the SD Card Cover

1

Rear Cabinet

25

.

2. Remove the 14 lock screws .

3. Remove the 6 lock screws .

1

SD Card Cover

2

3

2 – 11

LC-46D92U/LC-52D92U

Rear Cabinet

2

2

2 3 3 3 3 3 32 2 2

2

2

222222

2 – 12

4. Remove the 18 lock screws and detach the Stand Set Cover.

STAND ST COV-R

LOCK

INSERT

LOCK

INSERT

4

LC-46D92U/LC-52D92U

44

4

5. Remove the 8 lock screws and detach the Chassis Fix Angle.

5

4

4 4

44

5

STAND FIX ANG

2 – 13

LC-46D92U/LC-52D92U

KS BRIDGE ANGLE

MAIN-SHIELD

㪤㪘㪩㪢㪑㩷㩷㩷㩷㩷㩷㩿㬍㪍㪀

OK

NG

CAUTION

CHASSIS

MAIN-SHIELD

CAUTION

NG

OK

The Main shield is
got in the AV terminal angle.

䍀㪙䍁㩷㪭㪠㪜㪮

B

Position of screw

Insert

Tray

Hole

Hol

Main shield

6. Remove the 4 lock screws and detach the Tray Angle.

6

6 6

Chassis Fix Angle

6

6

7. Remove the 4 lock screws and detach the Main Shield.

8. Remove the 2 lock screws .

7

8

8

Chassis Fix Angle

7

7

7

7

7

7

2 – 14

9. Remove all the connectors from PWBs.

LA

Connect Wire (LB)
MAIN-INV

Connect Wire (LA)
POWER-INV

LA

Brown wire side
(LA wire)

Black wire side
(LA wire)

LB

WHITE

BLACK

GRAY

BROWN

BLACK

GRAY

Lock socket side

Lock socket side

SP-R

Connect Wire (SP-R)
TERMINAL-SP-R HAND

SP-L

Connect Wire (SP-L)
TERMINAL-SP-L HAND

Shape (LB)

WH

Shape (RA, SP-R, LA,LB)

WH

Shape (SP-L, LA) ×2

WH

Shape (LA)

WH

Screw)

Shape (RA, LA, LB)

WH

Shape (RA)

WH

Shape (RA, SP-L-R)

WH

Connect Wire (LA)
POWER-INV

*CAUTION

Wire LA is to spread the right and left equally.

OK

NG

RA wire

Rib of CAB-B

WH

Shape (SP-L, LA, LB)

WH

CH FIX ANG SP-R ASS’Y

CH FIX ANG SP-L ASS’Y

LC-46D92U/LC-52D92U

10.Remove the 4 lock screws .

11.Remove the 2 lock screws and detach the Speaker L&R.

9

10

9

9

10

2 – 15

LC-46D92U/LC-52D92U

LV

RA

Connect Wire (RA)
TERMINAL-LED

LED UNIT

LED UNIT ASS’Y

OK

NG

Connect Wire (LP)
MAIN-FRC

CAUTION

Straight line
(Don't make a wire

have looseness.)

Push

Push

Push the holder part

No good

Push

Do not push the wire part

KM

PH

PH

Connect Wire (PH)
POWER-LCD CONT

Connect Wire (KM)

MAIN-TOPCOVER ASS’Y

WH

Open Side
(WH)

Connect Wire (LV)
MAIN-FRC

LV Wire

KS TOP COVER ASS'Y

PWB ASEMBLY UNIT

12.Remove all the connectors from PWBs.

11

13.Remove the 7 lock screws and PWB Ass’y unit.

12

12

12

12

12

1212

12

2 – 16

14.Remove the 4 lock screws and detach the FRC PWB Angle.

FRC_UNIT

FRC_PWB_ANG

LCDCON-FRC (11P) WIRE

IC6001 COOL
(10x10x2)

IC5801 COOLL
(20x20x2)

FRC PWB SET ANG

SILICON GREASE

SILICON GREASE

*CAUTION

Designation in the installation
direction

FRC-LCDCON (FPC)
(Both side)

FRC side

(005722)

Part indication

LCD side

Panel Module Ass’y is fitted to the
bottom right side.

INSIDE

PANEL MODULE ASS’Y

INSIDE

PANEL BACK Side

15.Remove the 4 lock screws and detach the FRC PWB Set Angle.

13

14

LC-46D92U/LC-52D92U

14

14

16.Remove the 2 lock screws and detach the Panel Module Ass’y.

15

14

14

13

13

13 13

15

15

2 – 17

LC-46D92U/LC-52D92U

PANEL_MODULE

KS CAB-A

CH FIX ANG U-RL

Screw

WH

Tap

WH

Open Side (WH)

Open Side(WH)

SP-L UNIT

(DSETUD744FMV1)

CH FIX ANG SP-L

Red

17.Remove the 4 lock screws and detach the CH Fix Angle U L/R.

16

16 16 16 16

18.Remove the 2 lock screws and detach the SP-L Unit.

17

17

17

2 – 18