Sharp Aquos LC-52D82U User manual

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-
46D82U)......................................................... 2-1
[2] REMOVING OF MAJOR PARTS (LC-
52D82U)....................................................... 2-12
CHAPTER 3. ADJUSTMENT
[1] ADJUSTMENT PROCEDURE ....................... 3-1
CHAPTER 4. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE....................... 4-1
CHAPTER 5. MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS .........................5-1
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 ....... 7-11
[4] R/C, LED UNIT PRINTED WIRING
BOARD........................................................7-12
[5] FRC Unit......................................................7-13
[6] ILLUMINATION Unit ....................................7-21
CHAPTER 8. SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC DIA-
GRAM............................................................8-1
[2] SCHEMATIC DIAGRAM ................................8-2
Parts Guide
SERVICE MANUAL
CONTENTS
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-46D82U/LC-52D82U
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its orig-
inal condition and only parts identical to those specified should be used.
No. S37C3LC46D82U
LCD COLOR TELEVISION
LC-52D82U
LC-46D82U
MODELS

LC-46D82U/LC-52D82U
i
LC46D82U Service Manual
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRECAUTION
WARNING
1. For continued safety, no modification of any circuit should be
attempted.
2. Disconnect AC power before servicing.
BEFORE RETURNING THE RECEIVER (Fire &
Shock Hazard)
Before returning the receiver to the user, perform the following
safety checks:
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 paral-
leled by a 0.15µF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as electrical conduit or elec-
trical ground connected to an earth ground.
• Use an AC voltmeter having with 5000 ohm per volt, or higher, sen-
sitivity 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.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the
servicing guidelines which follow:
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)
DVM
AC SCALE
1.5k ohm
10W
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
0.15 µ F
TEST PROBE

LC-46D82U/LC-52D82U
ii
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
De nombreuses pièces, électriques et mécaniques, dans les télévi-
seur ACL présentent des caractéristiques spéciales relatives à la sé-
curité, qui ne sont souvent pas évidentes à vue. Le degré de protec-
tion 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, incen-
dies, radiations X ou autres accidents.
AVERTISSEMENT
1.
2.
3.
4.
5.
•
•
•
•
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux
conseils suivants.
N'entreprendre aucune modification de tout circuit. C'est danger-
eux.
Débrancher le récepteur avant toute réparation.
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 châs-
sis et les autres pièces métalliques du récepteur.
Inspecter tous les dispositifs de protection comme les boutons de
commande non-métalliques, les isolants, le dos du coffret, les cou-
vercles ou blindages de réglage et de compartiment, les réseaux
de résistancecapacité, les isolateurs mécaniques, etc.
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 cou-
rant 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 métalli-
que, 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 termin-
er ces vérifications.)
La tension de pointe mesurèe ne doit pas dépasser 0.75V (corre-
spondante 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.
PRECAUTION: POUR LA PROTECTION CON-
TINUE CONTRE LES RISQUES D'INCENDIE,
REMPLACER LE FUSIBLE
F701 (250V 8A), F702 (250V 2A)
F4702 (250V 4A),
F4701/F4703 (250V 3A ~ 127OC)
VERIFICATIONS CONTRE L'INCEN-DIE ET LE
CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur, effectuer les vérifica-
tions suivantes.
DVM
ECHELLE CA
1.5k ohm
10W
0.15
µ F
SONDE D'ESSAI
AUX PIECES
METALLIQUES
EXPOSEES
BRANCHER A UNE
TERRE CONNUE
AVIS POUR LA SECURITE

LC-46D82U/LC-52D82U
iii
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:
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 dam-
age 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
Indicates lead-free solder of tin, silver and copper. Indicates lead-free solder of tin, silver and copper.
PARTS CODE PRICE
RANK
PART
DELIVERY DESCRIPTION
ZHNDAi123250E BL J φ0.3mm 250g (1roll)
ZHNDAi126500E BK J φ0.6mm 500g (1roll)
ZHNDAi12801KE BM J φ1.0mm 1kg (1roll)

LC-46D82U/LC-52D82U
1 – 1
LC46D82U Service Manual
CHAPTER 1. OPERATION MANUAL
[1] SPECIFICATIONS
Digital cable *1
(64/256 QAM)
1-135ch (non-scrambled channel only)
LCD panel
Number of dots
TV
Function
TV-standard (CCIR)
Receiving
Channel
VHF/UHF
CATV
Digital Terrestrial
Broadcast (8VSB)
Audio multiplex
Audio out
Terminals Rear INPUT 1
INPUT 2
INPUT 3
INPUT 4
INPUT 5
6,220,800 dots (1920 X 1080 X 3 dots)
American TV Standard ATSC/NTSC System
VHF 2-13ch, UHF 14-69ch
1-135ch (non-scrambled channel only)
2-69ch
BTSC System
15W X 2
AV in, COMPONENT in
AV in, COMPONENT in
S-VIDEO in, AV in
HDMI in with HDCP
HDMI in with HDCP
Item Model: LC-46D82U Model: LC-52D82U
46" Advanced Super View & BLACK TFT
LCD
52" Advanced Super View & BLACK TFT
LCD
*1Emergency alert messages via Cable are unreceivable.
*2The dimensional drawings are shown on the inside back cover.
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.
Model number
AN-52AG1
Part name
Wall mount bracket
ANTENNA
DIGITAL AUDIO OUTPUT
OUTPUT
OSD language
Power Requirement
Power Consumption
Weight
Dimension*2
(W XHXD)
Operating temperature
75 Unbalance, F Type X 1 for Analog (VHF/UHF/CATV) and Digital (AIR/CABLE)
Optical Digital audio output X 1 (PCM/Dolby Digital)
Audio out
English/French/Spanish
AC 120 V, 60 Hz (FOR NORTH AMERICA)
AC 110-240 V, 50/60 Hz (FOR OTHERS)
+32°F to +104°F (0°C to+40°C)
TV +stand
TV +stand
285 W (0.7 W Standby with AC 120V) 322 W (0.7 W Standby with AC 120V)
78.3 lbs./35.5 kg
4449/64 X3111/32 X1211/64 inch
92.6 lbs./42.0 kg
501/8X3429/64 X1211/64 inch
INPUT 6 Audio in, HDMI in with HDCP
TV only 68.3 lbs./31.0 kg 82.7 lbs./37.5 kg
TV only 4449/64 X287/8X457/64 inch 501/8X3163/64 X431/32 inch

LC-46D82U/LC-52D82U
1 – 2
[2] OPERATION MANUAL
Part names
TV (Front)
OPC indicator*
POWER indicator**
OPC sensor*
Remote control sensor
NOTE
*OPC: Optical Picture Control
**TV status indicator.
***for Blue Illumination LED.
SLEEP indicator**
TV (Rear)
HDMI terminal (INPUT 4)
AC INPUT
terminal
HDMI terminal (INPUT 5)
DIGITAL AUDIO OUTPUT terminal
Antenna/Cable in
HDMI terminal (INPUT 6)
AUDIO terminals (INPUT 6)
INPUT 3 terminals
INPUT 2 terminals
INPUT 1 terminals
AUDIO OUTPUT terminals
POWER button
Channel buttons
(CH /)
Volume
buttons
(VOL /)
INPUT button
Blue Illumination LED***

LC-46D82U/LC-52D82U
1 – 3
3
2
114
5
6
4
8
17
15
16
18
19
7
20
10
9
21
11 23
24
25
12
13 27
22
26
Part names
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 external
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)
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 LIGHT : 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 or 6: STANDARD, MOVIE,
GAME, PC, USER, DYNAMIC (Fixed), DYNAMIC)
Remote control unit
NOTE
When using the remote control unit, point it at the TV.

LC-46D82U/LC-52D82U
1 – 4
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 work 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.
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
About setting the TV angle and height adjustment
Unfasten the four screws used to secure the stand in
place.
Detach the stand from the TV.
(Hold the stand so it will not drop from the edge of the
base area.)
Appendix
NOTE
To attach the stand, perform the above steps in reverse order.
Angular mounting
12
−
++
163/64 (−5)/0/
163/64 (5)
can be moved 1 63/64
(5)upordown
Unit: inch (cm)
0/5/10/15/20°
Hex key
NOTE
Detach the cable clamps on the rear of the TV when using the optional mount bracket.
Angle of TV
Height
Adjustment

LC-46D82U/LC-52D82U
1 – 5
Troubleshooting
Possible Solution
Is the volume too low?
Is "Variable" selected in "Output Select"?
Have you pressed MUTE on the remote control unit?
Cautions regarding use in high and low temperature environments
Appendix
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.
No picture
No sound
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 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.
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?
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)
Troubleshooting-Digital broadcasting
The error message about reception of broadcast
Failed to receive broadcast.
E203 Check the broadcast time in the program guide.
The example of an error
message displayed on a screen
No broadcast now.
Error code
E202
Possible Solution
Check the antenna cable. Check that the antenna is correctly
setup.

LC-46D82U/LC-52D82U
1 – 6
Preparation
NOTE
The HDMI terminals only support digital signal.
PC
It is necessary to set the PC format correctly to display XGA and WXGA signal.
Connecting a PC
When connecting to a PC with an HDMI terminal. (INPUT 4, 5 or 6)
HDMI cable
(commercially available)
PC compatibility chart
PC
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
640 x 480
720 x 400
VGA
800 x 600SVGA
XGA 1024 x 768
WXGA 1360 x 768
SXGA 1280 x 1024
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.
PC Horizontal Frequency VESA StandardResolution Vertical Frequency

LC-46D82U/LC-52D82U
1 – 7
Picture
Audio
Option
Power Control
Digital Setup
Picture
Audio
Option
Power Control
Menu items for TV/INPUT 1/2/3 Menu items for HDMI
Basic adjustment settings
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
No Signal Off
No Operation Off
OPC
Backlight
Contrast
Brightness
Color
Tint
Sharpness
Advanced
Color Temp.
Black
Fine Motion Advanced
Monochrome
Film Mode
Range of OPC
Reset
Treble
Bass
Balance
Surround
Reset
No Signal Off
No Operation Off
EZ Setup
CH Setup
Antenna Setup-DIGITAL
Input Skip
Input Label
Parental CTRL
Position
Language
Blue Illumination
Reset
Audio Only
Digital Noise Reduction
Input Select
Output Select
Color System
Caption Setup
Program Title Display
Favorite CH
Audio Setup
Input Skip
Input Signal
Input Label
Position
Language
Blue Illumination
Reset
Audio Only
Digital Noise Reduction
HDMI Setup
Output Select
Some menu items may not be displayed depending on the
selected input source.
Setup
Setup
NOTE

LC-46D82U/LC-52D82U
1 – 8
[3] DIMENSIONS
4
57
/
64
(124)
12
11
/
64
(309)
3
25
/
32
(96)
17
47
/
64
(450)
25
63
/
64
(660)
44
49
/
64
(1137)
31
11
/
32
(796)
28
7
/
8
(733)2
31
/
64
(63)
40
7
/
32
(1021.4)
22
21
/
32
(575.4)
7
7
/
8
(200)
7
7
/
8
(200)
3
61
/
64
(100)
45
31
/
64
(1155.0)
25
63
/
64
(660)
50
1
/
8
(1273)
4
31
/
32
(126)
12
11
/
64
(309)
3
3
/
4
(95)
25
41
/
64
(651.0)
19
19
/
64
(490)
34
29
/
64
(875)
31
63
/
64
(812)
2
31
/
64
(63)
7
7
/
8
(200)
7
7
/
8
(200)
3
61
/
64
(100)
Unit: inch/(mm)
LC-46D82U
LC-52D82U

LC-46D82U/LC-52D82U
2 – 1
LC46D82U Service Manual
CHAPTER 2. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS (LC-46D82U)
1. Detach the SD Card Cover
.
2. Remove the 13 lock screws .
3. Remove the 5 lock screws and detach the Rear Cabinet.
1
SD CARD COVER
1
Rear Cabinet
2
3
22 2 2
2
22
2
22
2
2
3
3 3
3
Rear Cabinet

LC-46D82U/LC-52D82U
2 – 2
4. Remove the 8 lock screws and detach the Stand Set Cover.
5. Remove the 8 lock screws and detach the Stand Fix Angle.
4
INSERT
LOCK
x4
LOCK
x4
INSERT
4 4
STAND ST COV-R
5
STAND FIX ANG
5

LC-46D82U/LC-52D82U
2 – 3
6. Remove the 4 lock screws and detach the Bridge Angle Ass’y.
7. Remove the 2 lock screws and detach the Speaker-L/R.
8. Remove all the connectors from PWBs.
6
BOTTOM SIDE
KS BRIDGE ANGLE
"TOP" SIDE
6
6 6
6
Chassis Fix Angle
Chassis Fix Angle
7
SP wire safety line (SP wire is the thing which is not in the bottom side from the center of the body of SP.)
LA
LC
LB
Connect Wire(SP-L)
LA
LC
Connect Wire(SP-R)
SPEAKER-R/L SPEAKER-R/L
Shape(SP-L)
Shape(SP-L)
㪪㪧㩷㪽㫀㫏㪼㪻㩷㪹㫆㫋㫋㫆㫄㩷㫊㫀㪻㪼㩷㪿㫆㫃㪻㪼㫉㪅 㪪㪧㩷㪽㫀㫏㪼㪻㩷㪹㫆㫋㫋㫆㫄㩷㫊㫀㪻㪼㩷㪿㫆㫃㪻㪼㫉㪅
(SP Wire)
(RA,SP-Wires)
5-10mm
5-10mm
㪦㫅㪼㩷㪽㫆㫉㩷㫉㫆㫆㫄㩷㫆㪽㩷㫋㪿㪼㩷㫎㫀㫉㪼
㩹㪩㪘㩷㪸㫅㪻㩷㪪㪧㪄㪩㩹
㫀㫊㩷㪸㪹㫊㫆㫉㪹㪼㪻㩷㪿㪼㫉㪼㪅
A
djustment
(upside.)
㪁㪪㪧㩷㫎㫀㫉㪼㩷㫊㪸㪽㪼㫋㫐㩷㫃㫀㫅㪼
㩷㩿㪪㪧㩷㫎㫀㫉㪼㩷㫀㫊㩷㫋㪿㪼㩷㫋㪿㫀㫅㪾㩷㫎㪿㫀㪺㪿㩷㫀㫊㩷㫅㫆㫋㩷㫀㫅㩷㫋㪿㪼
㩷㩷㪹㫆㫋㫋㫆㫄㩷㫊㫀㪻㪼㩷㪽㫉㫆㫄㩷㫋㪿㪼㩷㪺㪼㫅㫋㪼㫉㩷㫆㪽㩷㫋㪿㪼㩷㪹㫆㪻㫐㩷㫆㪽㩷㪪㪧㪅㪀
㩷㩿㪛㫆㫅㩾㫋㩷㪹㪼㪺㫆㫄㪼㩷㪺㫆㫍㪼㫉㪼㪻㩷㫎㫀㫋㪿㩷㫋㪿㪼
㩷㩷㩷㪪㪧㩷㫎㫀㫉㪼㩷㫆㫅㩷㫋㪿㪼㩷㪪㪧㩷㪽㫀㫏㪼㪻㩷㪹㫆㫋㫋㫆㫄㩷㫊㫀㪻㪼㩷㪿㫆㫃㪻㪼㫉㪅㪀
77

LC-46D82U/LC-52D82U
2 – 4
9. Remove the 3 lock screws and detach the Sub Shield.
10.Remove the 6 lock screws and detach the Main Shield.
8
㪤㪸㫀㫅㩷㪪㪿㫀㪼㫃㪻
SUB SHIELD
8
9
MAIN-SHIELD
9 9
9
9
9
9

LC-46D82U/LC-52D82U
2 – 5
11.Remove all the connectors from PWBs.
12.Remove the 1 lock screw , and detach the LED Unit.
LB
L
Connect Wire(L)
LA
LC
LA
LC
LB
L
㪣㪙
WH
10
LA
LC
LA
LC
㵘ILLUMINATIN UNIT
RA
㵘LED UNIT
LED UNIT
RA
SP
LA
LB
RA RA
HANG
HANG
Connect Wire(RA)
TERMINAL-ILLUMINATION
LB
RIB-CAB
*CAUTION
"RA" wire should pass on the right of CAB-RIV.
HANG
INSERT
ShapeRAx3
For RIB-CAB
Connect Wire(RA)
TERMINAL䋭LED
10

LC-46D82U/LC-52D82U
2 – 6
13.Remove all the connectors from PWBs.
14.Remove the 7 lock screws and PWB Ass’y unit.
KM
LV
LP
Connect Wire(LV)
MAIN-LCD CONT
Open Side
(WH)
WH
Connect Wire(KM)
MAIN䋭TOPCOVER ASS’Y
Connect Wire(LF)
MAIN-LCD CONT
OK
NG
㪧㫌㫊㪿㪧㫌㫊㪿
㪧㫌㫊㪿㩷㫋㪿㪼㩷㪿㫆㫃㪻㪼㫉㩷㫇㪸㫉㫋㪅
No good
㪧㫌㫊㪿
㪛㫆㩷㫅㫆㫋㩷㫇㫌㫊㪿㩷㫋㪿㪼㩷㫎㫀㫉㪼㩷㫇㪸㫉㫋㪅
KM
Connect Wire(PH)
POWER-LCD CONT
LF
Base line(Edge of ಳ)
㪧㪟
㪧㪛
Shape(LV)
WH
㪣㪧㩿㪣㪝㪀
LV
LV
LP
LF
㪣㪭
PH
PH
PH
PD
PD
KM
11
㵘㵘㪢㪪㩷㪫㪦㪧㩷㪚㪦㪭㪜㪩㩷㪘㪪㪪㩾㪰
㵘㵘TRAY ASEMBLY UNIT
11

LC-46D82U/LC-52D82U
2 – 7
15.Remove the 8 lock screws and detach the FRC PWB Angle.
16.Remove the 4 lock screws and detach the Panel Module Ass’y.
12
FRC_UNIT
FRC_PWB_ANG
LCDCON-FRC(11P) WIRE
IC6001 COOL
㵘㵘㵘㵘㵘䋨10x10x2)
IC5801 COOLL
㵘㵘㵘㵘㵘䋨20x20x2)
FRC PWB SET ANG
SILICON GREASE
SILICON GREASE
*CAUTION
Designation in the installation
direction
(9) QPWBHE107WJQZ ×2
FRC-LCDCON(FPC)
(Both side)
FRC side
䋨㪇㪇㪌㪎㪉㪉䋩
㪧㪸㫉㫋㩷㫀㫅㪻㫀㪺㪸㫋㫀㫆㫅
LCD side
12
12
13
Panel Module Ass’y is fitted to the
bottom right side.
INSIDE
PANEL MODULE ASS’Y
INSIDE
PANEL BACK Side
INSIDE
INSIDE
13
13
13

LC-46D82U/LC-52D82U
2 – 8
17.Remove the 8 lock screws , and detach the Chassis Fix Angles.
18.Remove the 1 lock screw , and detach the Barrier sheet.
19.Remove the 2 lock screws , and detach the Key Unit.
14
15
㪧㪸㫅㪼㫃㪄㫊㫀㪻㪼
Passes through the
protruding portion.
㪝㫀㪾㪄㪈
Barrier seet
Fitted the hole in protruding portion.
㪘㹢
Screw
PANEL_MODULE
KS CAB-A
118mm
Fitted on the left of WH
Barrier sheet
Fitted to the panel tightness.
Tape is torn off..
Fitted to the screw hole
Fitted to the protruding portion.
Open side
WH WH
WH
Line of the angle
118mm
CH FIX ANG U-RL CH FIX ANG U-RL
CH FIX ANG U-RL
CH FIX ANG U-RL
Open side
14
14
14 14
15
15
㪘㹢
16
KEY UNIT
The guidepin 㵘
of positioning x3
KS TOP COV
16