Sharp LC-C5262U, LC-C4662U Service Manual

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SUPPLEMENT ATTACHED
LC-C4662U/LC-C5262U
SERVICE MANUAL
No. S47E4LCC5262U
LCD COLOR TELEVISION
LC-C4662U
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-C5262U
OUTLINE
This model is based on the LC-46D62U/LC-52D62U and partially modified. For the contents not covered in this Service Manual, accordingly, please refer to the LC-46D62U/LC-52D62U (No. S86V8LC52D62U) Service Manual.
CONTENTS
DIFFERENCES FROM BASE MODEL
LIST OF CHANGED PARTS (LC-C4662U) LIST OF CHANGED PARTS (LC-C5262U)
IMPORTANT SERVICE SAFETY PRE-
CAUTION ...........................................................ii
PRECAUTIONS A PRENDRE LORS DE
LA REPARATION.............................................. iii
PRECAUTIONS FOR USING LEAD-FREE
SOLDER ........................................................... iv
...................i
...................i
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS ......................................... 1-1
CHAPTER 2. OPERATION MANUAL
[1] OPERATION MANUAL .................................. 2-1
CHAPTER 3. DIMENSIONS
[1] DIMENSIONS ................................................ 3-1
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-C4662U/LC-C5262U
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LC-C4662U/LC-C5262U
Service Manual
DIFFERENCES FROM BASE MODEL
LIST OF CHANGED PARTS (LC-C4662U)
LIST OF CHANGED PARTS (LC-C5262U)
Ref. No. Description LC-46D62U LC-C4662U Note
PRINTED WIRING BOARD ASSEMBLIES
R/C, LED Unit DUNTKD909FM02 No Change KEY Unit DUNTKD910FM02 No Change MAIN Unit DUNTKD934FM01 No Change TERMINAL Unit DUNTKD935FM01 No Change POWER SUPPLY Unit RDENCA184WJQZ No Change
LCD PANEL
LCD PANEL Unit R1LK460D3LZ10Y No Change
Refer to the PARTS GUIDE for CABINET PARTS, SUPPLIED ACCESSORIES, PACKING PARTS and SERVICE JIGS.
Ref. No. Description LC-52D62U LC-C5262U Note
PRINTED WIRING BOARD ASSEMBLIES
R/C, LED Unit DUNTKD909FM02 No Change KEY Unit DUNTKD910FM02 No Change MAIN Unit DUNTKD934FM02 No Change TERMINAL Unit DUNTKD935FM02 No Change POWER SUPPLY Unit RDENCA184WJQZ No Change
LCD PANEL
LCD PANEL Unit R1LK520D3LZ10Y No Change
Refer to the PARTS GUIDE for CABINET PARTS, SUPPLIED ACCESSORIES, PACKING PARTS and SERVICE JIGS.
LC-C4662U/LC-C5262U
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LC-C4662U/LC-C5262U
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 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.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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: FO R C O N T I N U E D PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE.
F701 (250V, 8A), F702 (250V, 1A) 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
0.15µF
TEST PROBE
LC-C4662U/LC-C5262U
iii
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
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.
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 danger­eux.
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 châs­sis 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 cou­vercles 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 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 k 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 5000/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.
PRECAUTION:POURLAPROTECTIONCON­TINUE CONTRE LES RISQUES D'INCENDIE, REMPLACER LE FUSIBLE
VERIFICATIONS CONTRE L'INCEN-DIE ET LE CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur, effectuer les vérifica­tions 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
F701 (250V, 8A), F702 (250V, 1A) F4702 (250V, 4A) F4701/F4703 (250V, 3A, 127
O
C)
LC-C4662U/LC-C5262U
iv
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 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
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-C4662U/LC-C5262U
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LC-C4662U/LC-C5262U
Service Manual
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS
Digital cable
*
1
(64/256 QAM)
1-135ch (non-scrambled channel only)
*
1
Emergency alert messages via Cable are unreceivable.
*
2
The 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.
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
ANTENNA
DIGITAL AUDIO OUTPUT
OUTPUT
OSD language
Power Requirement
Power Consumption
Weight
Dimension*
2
(W H D)
Operating temperature
6,220,800 dots (1920 1080 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 2
AV in, COMPONENT in
AV in, COMPONENT in
S-VIDEO in, AV in
Audio in, HDMI in with HDCP
HDMI in with HDCP
75 Unbalance, F Type 1 for Analog (VHF/UHF/CATV) and Digital (AIR/CABLE)
Optical Digital audio output 1 (PCM/Dolby Digital)
Audio out
English/French/Spanish
AC 120 V, 60 Hz
32°F to 104°F (0°C to 40°C)
Item
Model: LC-C4662U Model: LC-C5262U
46" Advanced Super View & BLACK TFT LCD (Actual screen size 45 63/64"measured diagonally)
52"
Advanced Super View & BLACK TFT LCD (Actual screen size 52 1/32" measured diagonally)
TV only
TV stand
TV stand
TV only
270 W (0.7 W Standby with AC 120V) 302 W (0.7 W Standby with AC 120V)
78.3 lbs./35.5 kg
68.3 lbs./31.0 kg
44
3
/82843/
64
457/64inch
89.3 lbs./40.5 kg
79.4 lbs./36.0 kg
49
47
/64347/
32
1211/64inch
49
47
/643125/
32
459/64inch
44
3
/8317/641211/64inch


LC-C4662U/LC-C5262U
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LC-C4662U/LC-C5262U
Service Manual
CHAPTER 2. OPERATION MANUAL
[1] OPERATION MANUAL
Part names
POWER button
TV (Front)
Channel buttons
(CH /)
Volume buttons
(VOL /)
INPUT button
OPC indicator
POWER indicator
OPC sensor*
Remote control sensor
NOTE
*OPC: Optical Picture Control
SLEEP indicator
TV (Rear/Top)
HDMI terminal (INPUT 4)
INPUT 3 terminals
AUDIO OUTPUT terminals
HDMI terminal (INPUT 5)
DIGITAL AUDIO OUTPUT terminal
Antenna/Cable in
INPUT 1 terminals
AC INPUT terminal
AUDIO terminals (INPUT 4)
INPUT 2 terminals
LC-C4662U/LC-C5262U
2 – 2
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)
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 or 5: STANDARD, MOVIE,
GAME, PC, USER, DYNAMIC (Fixed), DYNAMIC)
Remote control unit
NOTE
When using the remote control unit, point it at the TV.
LC-C4662U/LC-C5262U
2 – 3
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.
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
Hex key
NOTE
Detach the cable clamps on the rear of the TV when using the optional mount bracket.
1
63
/64( 5)/0/
1
63
/64(5)
can be moved 1
63
/
64
(5) up or down
Unit: inch (cm)
0/5/10/15/20°AngleofTV
Height
Adjustment
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AA
LC-C4662U/LC-C5262U
2 – 4
The TV sometimes makes a cracking sound.
This is not a malfunction. This happens when the cabinet slightly expands and contracts according to change in temperature. This does not affect the TV's performance.
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-C4662U/LC-C5262U
2 – 5
PC format compatibility chart
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
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
PC Horizontal Frequency VESA StandardResolution Vertical Frequency
It is necessary to set the PC format correctly to display XGA and WXGA signal.
Preparation
LC-C4662U/LC-C5262U
2 – 6
Picture Picture
Menu items for TV/INPUT 1/2/3
OPC Backlight Contrast Brightness Color Tint Sharpness Advanced
Color Temp. Black Fine Motion 3D-Y/C Monochrome Film Mode Range of OPC
Reset
Menu items for HDMI (INPUT 4/5)
OPC Backlight Contrast Brightness Color Tint Sharpness Advanced
Color Temp. Black Fine Motion Monochrome Film Mode Range of OPC
Reset
Audio
Audio
Treble Bass Balance Surround Reset
Setup
Option
Power Control
Digital Setup
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
No Signal Off No Operation Off
Audio Setup
Treble Bass Balance Surround Reset
Setup
Option
Power Contr o l
Input Skip Input Signal Input Label Position Language Reset
Audio Only Digital Noise Reduction HDMI Setup Output Select
No Signal Off No Operation Off
NOTE
Some menu items may not be displayed depending on the selected input source.
Basic adjustment settings
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