SHARP LC15S4US Service Manual

LC-15S4U-S

SERVICE MANUAL

S75L9LC15S4US

LCD COLOR TELEVISION

MODEL

In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.

CONTENTS

» IMPORT ANT SER VICE SAFETY PRECAUTION.........................................................................................2

» SPECIFICATIONS ........................................................................................................................................5

» OPERATION MANUAL ............................................................................................................... ..................6

» DIMENSIONS ...............................................................................................................................................8

» REMOVING OF MAJOR P ARTS ..................................................................................................................9

» ADJUSTING PROCEDURE OF EACH SECTION .....................................................................................13

» PUBLIC MODE SETTING PROCEDURE ..................................................................................................23

» TROUBLE SHOOTING TABLE ..................................................................................................................28

» MAJOR IC INFORMATIONS ......................................................................................................................32

» BLOCK DIAGRAM......................................................................................................................................34

» OVERALL WIRING DIAGRAM ...................................................................................................................36

» DESCRIPTION OF SCHEMATIC DIAGRAM .............................................................................................38

» SCHEMATIC DIAGRAM

ËR/C, LED Unit ..........................................................................................................................................39

ËMAIN Unit.................................................................................................................................................40

ËANALOG Unit...........................................................................................................................................50

» PRINTED WIRING BOARD ASSEMBLIES................................................................................................60

» REPLACEMENT PARTS LIST.................................................................................................................... 73

» PACKING OF THE SET..............................................................................................................................83

LC-15S4U-S

Page

SHARP CORPORATION

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

LC-15S4U-S

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 ONL Y WITH SAME TYPE F3701 (2.5A, 250V), F3702

A V

(2.0A, 250V), F6501 (1.6A, 250V) AND F6502 (1.6A, 250V) FUSE.

BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)

Before returning the receiver to the user, perform the following safety checks:

1. 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.

2. 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.

3. To be sure that no shock hazard exists, check for leakage current in the following manner.

• Plug the AC cord directly into a 110~240 volt AC outlet, and connect the DC power cable into the receiver's DC jack. (Do not use an isolation transformer for this test).

• 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 0.75V peak (this corresponds to 0.5 mA. peak 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

0.15 µF

TEST PROBE

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

SAFETY NOTICE

Many electrical and mechanical parts in LCD 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

and shaded areas in the

Schematic Diagrams

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

components having such features are identified by " å"

2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212

Replacement Parts Lists

and

LC-15S4U-S

DVM

ECHELLE CA

1.5k ohm 10W

0.15 µF

SONDE D'ESSAI

AUX PIECES METALLIQUES EXPOSEES

BRANCHER A UNE TERRE CONNUE

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

La réparation ne peut être effectuée que par un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants.

AVERTISSEMENT

1. Pour la sécurité continue, n'entreprendre aucune modification de tout circuit.

2. Débrancher l'alimentation CA avant la réparation.

PRECAUTION: POUR LA PROTECTION CONTINUE CONTRE LES RISQUES D'INCENDIE, REMPLACER LE FUSIBLE PAR UN FUSIBLE DE

A V

MEME TYPE F3701 (2.5A, 250V) F3702 (2.0A, 250V), F6501 (1.6A, 250V) et F6502 (1.6A, 250V).

AVANT DE RENDRE LE RECEPTEUR A L’UTILISATEUR (Incendie et choc électrique)

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

1. 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.

2. 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 résistance-capacité, les isolateurs mécaniques, etc.

3. 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 110-240V. (Ne pas utiliser de transformateur d'isolation pour cet essai).

• A l'aide de deux fils à pinces, brancher une résistance de 1.5kΩ 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 branch ée à la terre.

• Utiliser un voltmètre CA d'une sensibilité d'au moins 5000Ω/V pour mesurer la chute de tension CA 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. T outes les vérifications doivent être refaites après avoir inversé la fiche du cordon d'alimentation. (Si nécessaire, une prise d'adpatation non polarisée doit 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.

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

AVIS POUR LA SECURITE

De nombreuses pièces, électriques et mécaniques, dans les téléviseurs de l'afficharge à cristaux liquides présentent des caractéristiques spéciales relatives à la sécurité. Ces caracténstiques 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

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

pièces électriques qui présentent ces particularités sont identifiées par la marque " å " et hachurées dans la

des pièces de remplacement schématiques

et les

diagrammes

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 ou autres accidents.

liste

LC-15S4U-S

Precautions for using lead-free solder

1 Employing lead-free solder

"All 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:

L Fa

Indicates lead-free solder of tin, silver and copper.

2 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.

3 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

Part No, ★ Description Code ZHNDAi123250E J φ0.3mm 250g(1roll) BL ZHNDAi126500E J φ0.6mm 500g(1roll) BK ZHNDAi12801KE J φ1.0mm 1kg(1roll) BM

SPECIFICATIONS

Items

LCD panel 15" Advanced Super View & BLACK TFT LCD Number of dots 921,600 dots VGA Video color systems N358, N443, PAL, PAL-M, PAL-N, SECAM, PAL-60

TV Standard (CCIR) NTSC/PAL-M/PAL-N

TV function

TV Tuning System PLL 181 ch. STEREO MTS+SAP CATV 125 ch.

Y/C FILTER 3-LINE COMB FILTER Brightness

430 cd/m

Viewing

angles H: 170° V: 170° Audio amplifier 2.1 W × 2 Speakers 1 3/16× 261/64in. (3 × 7.5 cm), 2 pcs.

INPUT1 Mini-jack for stereo (ø3.5 mm), COMPONENT-IN INPUT2 AUDIO-IN, VIDEO-IN, S-VIDEO-IN

Terminals INPUT3/OUTPUT AUDIO-IN, VIDEO-IN/AUDIO-OUT, VIDEO-OUT

Antenna F-Type

Headphone Mini-jack for stereo (ø3.5 mm) OSD language English/Spanish/French Power supply DC 12V, AC 110-240V, 50/60Hz (AC adapter), AC 110-125V (AC cord)

Power

consumption

36 W (0.2 W standby): AC 120V 31 W:

DC 12V

Weight

Display only 7.9 lbs./3.6 kg

Display with stand 9.5 lbs./4.3 kg Operating

temperature +32°F to +104°F (0°C to +40°C)

ËAs

a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for the LCD TV

set

improvement

without prior notice. The performance specification figures indicated are nominal values of production units. There

may

some

deviations from these values in individual units.

Model

LC-15S4U

LC-15S4U-S

Upper control panel

VOL (Volume)

(–)/(+)

POWER

INPUT

CH (Channel)

( )/( )

Speaker

OPC (Optical Picture Control) indicator

The OPC indicator lights up green when "OPC" is set to "ON".

HEADPHONE jack

Plug the headphone mini-plug into the Headphone jack located on the front of the

main unit.

POWER/WAKE UP TIMER indicator

POWER/WAKE UP TIMER indicator lights up green when the power is on, and red

when in the standby mode (the indicator will not light when the main power is off),

and orange when the wake-up timer is set (the indicator will light when in the

standby mode).

OPC (Optical Picture Control) sensor

Remote sensor

Part Names of the Main Unit

Controls

• INPUT, CH (

)/(

), VOL (–)/(+) and MENU on the main unit have the same functions as the same buttons on the remote control.

Fundamentally, this operation manual provides a description based on operation using the remote control.

To change the vertical angle of the LCD TV

set, tilt the screen up to 2.5 degrees forward

or 10 degrees backward. Please adjust the

angle so

that the LCD TV set can be watched

most comfortably.

Tilt the display by grabbing onto the

carrying handle while securely holding

down the stand with your other hand.

How to adjust the angle

Listening with Headphones

Plug

the headphone mini-plug into the HEADPHONE jack located on the front of the main unit.

• Headphones are not included in the supplied accessories.

• No sound is heard from the main unit speakers when a headphone mini-plug is connected into the HEADPHONE jack.

• Do not set the volume at a high level. Hearing experts advise against extended listening at high volume levels.

On-screen display

VOLUME

Adjust

the sound volume

using VOL

(

)/(

–

) on

the

remote

control.

Headphones

Terminals

Carrying handle

Rear View

Round lock for Kensington

Security Standard slot

* Using the Kensington Lock

• This LCD TV set has a Kensington

Security Standard slot for use

with a Kensington MicroSaver

Security System. Refer to the

information that came with the

system for instructions on how to

use it to secure the LCD TV set.

AUDIO (L/R)

S-VIDEO

VIDEO

AUDIO (L)

AUDIO (R)

INPUT1

(COMPONENT)

ANT.

(Antenna terminal)

POWER INPUT

(DC 12V)

INPUT2

VIDEO

AUDIO (L)

AUDIO (R)

INPUT3/

OUTPUT

How to Fix the Cables

• Secure

cables and cords with the supplied cable clamp so that they do not get caught when mounting the cover.

Cable

clamp

Push the two hooks

sideways to the left

to open the cover.

OPERATION MANUAL

Part Names of the Remote Control

DISPLAY

Displays the receiving channel and

the current time for 10 seconds.

AV MODE

Selects preferred AV MODE.

BACKLIGHT

Adjusts the brightness of the screen.

' /"/ \ /| (Cursor control)

Selects a desired item on the screen.

Displays the menu screen.

INPUT

Switches the input source between

INPUT1, INPUT2, INPUT3 and TV

mode.

Displays Closed Caption subtitles.

FLASHBACK

Returns to the previous channel.

CH (

)/(

)

Selects a channel.

Channel Select

Sets the channel.

POWER

Switches the Liquid Crystal

Television power on or standby.

PIC.FLIP

Sets the orientation of the picture.

SLEEP

Sets the sleep timer.

MENU RETURN

Returns to the previous screen.

ENTER

Executes a command.

MUTE

Mutes the sound.

AUDIO ONLY

Outputs audio without screen image.

VOL (+)/(–)

Sets the v

olume.

MTS

Selects audio settings.

Installing Batteries in the Remote Control

Before using the LCD TV set for the first time, install the two "AAA" size batteries supplied in the remote control. When the

batteries become depleted and the remote control fails to operate, replace the batteries with new "AAA" size batteries.

Open the battery cover.

Insert two “AAA” size batteries.

Close the battery cover.

Ë Place batteries with their

terminals corresponding

to the (+) and (–)

indications in the battery

compartment.

Caution!

Precautions regarding batteries

Ë Improper use of batteries can result in a leakage of chemicals and/or explosion. Be sure to follow the instructions below.

• Place batteries with their terminals corresponding to the (+) and (–) indications.

• Different types of batteries have different characteristics. Do not mix batteries of different types.

• Do not mix old and new batteries. Mixing old and new batteries can shorten the life of new batteries and/or cause old

batteries to leak chemicals.

• Remove batteries as soon as they are depleted. Chemicals that leak from batteries can cause a rash. If chemical

leakage is found, wipe it off with a cloth.

• The batteries supplied with the LCD TV set may have a shorter operating time due to storage conditions.

• If the remote control is not to be used for a long period of time, remove the batteries from the remote control.

Preparation

Ë Engaging the lower

claw with the remote

control, close the

cover.

Ë Slide the cover while

pressing the (

) part.

LC-15S4U-S

1419/

DIMENSIONS

Unit: inch (mm)

(

)

274

(

)

106

411/

(

)

363

(46)

(65)

) 378

(

/ 14

(

)

308

121/

) 338

(

)

(

315/

100

) 231

(

) 236

(

/ 9

(

)

111

(

)

181

)

) 368

(

/ 14

)

100

(

/ 3

)

(

REMOVING OF MAJOR PARTS

Cabinet B

Cabinet A

Terminal Cover

Carrying Handle

Stand

Stand Cover

1. Remove the stand cover fixing screws (1 pc.).

2. Remove the stand fixing screws (4 pcs.).

3. Remove the carrying handle fixing screws (4 pcs.).

4. Remove the terminal cover.

5. Remove the terminal screws (1 pc.).

6. Remove the cabinet B fixing screws (5 pcs.).

7. Remove the cabinet B after opening from the direction of an arrow.

8. Disconnect all the connectors from all the PWBs.

LC-15S4U-S

R/C, LED PWB

Analog PWB

P6500

SC1203

CN3

P6501

SC1202

SC1201

CN2

CN1

P3703

P3702

SC701

P3401

P3402

SC3401

SC2001

P4001

Main PWB

LC-15S4U-S

9. Remove the 4 lock screws from the analog PWB, and undo the claws a and b. Detach the chassis frame (left) from the analog PWB by pulling out the terminals. In the same way, undo the claws c and d, and detach the chassis frame (right) from the analog PWB by pulling out the terminals.

10. Remove the 3 lock screws from the main PWB, and undo the claws e and f. Detach the main PWB by lifting the area around the claws and pulling the PWB out.

Note: When detaching the main PWB and analog PWB, be careful not to break the PWB-fixing claws.

11. Remove the R/C, LED PWB fixing screws (2 pcs.)

12. Remove the stand angle fixing screws (4 pcs.)

13. Remove the 3 lock screws each from the right and left speakers and take out both the speakers.

14. Remove the LCD panel unit fixing screw (1 pc).

Chassis Frame (R)

Analog PWB

Main PWB

Chassis Frame (L)

Speaker (R)

R/C, LED PWB

Stand Angle

Speaker (L)

» Precautions in handling the LCD panels

1. Work in a clean room (with humidities below 50%).

2. Be sure to wear an anti-static armband.

3. Handle the panels on an electro-conductive mat.

4. Be careful not to fall, shake and shock the panels.

15. Detach the LCD panel.

16. Detach the four reflection mirrors.

17. Detach the reflection/deflection sheet and diffusion sheets.

18. Detach the two multi reflection sheets.

19. Remove the lamp unit.

20. Detach the light guide panel.

21. Detach the reflection sheet.

LC-15S4U-S

Back Shield

(PSLDMA557WJFW)

Reflection Mirror (L), x2

(PMiR-A059WJZZ)

15" LCD Panel Unit

Reflection Sheet

(PSHEPA277WJZZ)

Light Guide Panel

(PGiDMA015WJZZ)

Lamp Unit

(KLMP-A099WJZZ)

Multi Reflection Sheet, x2

(PSHEP0307CEZZ)

Diffusion Sheet, x2

(PSHEP0283CEZZ)

Reflection/deflection Sheet

(PSHEPA268WJZZ)

Reflection Mirror (S), x2

(RMiR-A060WJZZ)

LC-15S4U-S

»Precautions in servicing the B side (backside) of the main PWB unit

1. Disconnect the FFC from between the main PWB (SC1202) and LCD panel unit (CN1), and then connect the service-specific extension FFC (flat cable) (QCNW-B784WJZZ).

2. Disconnect the FFC from between the main PWB (SC1201) and LCD panel unit (CN2), and then connect the service-specific extension FFC (flat cable) (QCNW-A556WJZZ).

3. Disconnect the FFC from between the main PWB (SC1203) and LCD panel unit (CN3), and then connect the service-specific extension FFC (flat cable) (QCNW-A555WJZZ).

4. Remove the lock screws from the main PWB, detach the PWB from the chassis frame, and then turn it over to service.

Analog PWB

Main PWB

(Side-B)

SC1202

SC1201

SC1203

CN2

R/C, LED PWB

Main PWB

CN3

Step Part No. Description

1 QCNW-B784WJZZ 2 QCNW-A556WJZZ 3 QCNW-A555WJZZ

Extension Cable 30-pin Main (SC1202)-LCD Panel (CN1) Extension Cable 50-pin Main (SC1201)-LCD Panel (CN2) Extension Cable 20-pin Main (SC1203)-LCD Panel (CN3)

CN1

LC-15S4U-S

ADJUSTING PROCEDURE OF EACH SECTION

The products have been factory-adjusted to the best settings. If any of them gets out of point or readjustment is needed due to a part replacement, take the following adjustment procedures.

1. Pre-adjustment preparations

Keep the AC power cable directly plugged in a wall outlet.

2. Adjustment procedures

» Power on (initialization) → Model number and screen size settings → Transfer of model-related data (I2C) to

setting E2PROM

» Common bias adjustment → TAMP adjustment → White balance (cut-off and gain) adjustment

3. Entering the adjustment process mode

3-1. Calling the adjustment process mode

» Turn on the power and press the "ADJUST PROCESS" key on the remote controller. » For servicing, hold down the "INPUT" and "VOL (–)" keys at once, and turn on the power switch.

("K" appears at the top left onscreen to indicate that the adjustment process mode is on.) Press the "CH (Ù)" and "VOL (–)" keys at once. (The adjustment process mode screen shows up.) To quit the mode, turn off the power (using the power switch on the set or the remote controller).

4. Key operation

ËBasic operation Selecting a receiving channel » Using the "CH (ù)/(Ù)" keys, select an actual receiving channel.

Instant press: Channels are selected one by one. Continuous press: The next receivable channel is searched and selected.

» Various adjustments

Using the "MENU", "cursor" and "VOL (+)/(–)" keys (on the set and the remote controller), adjust the settings of each item.

» Using the "cursor UP/DOWN" keys, select an adjustment item. » Press the "MENU" key, and the adjustment items will be selected one after another (to the next item).

When the item at the bottom of a page is selected, the press on the "MENU" key advances to the top item on the next page.

» Even if any item is selected, the press on the "PRESET" key advances to the top item on the next page.

Page 1 → Page 2 → Page 3 → Page 9 → Page 1

» Even if any item is selected, the press on the "MANUAL MEMORY" key moves back to the top item on the same

page.

» Using the "cursor RIGHT/LEFT" and "VOL (+)/(–)" keys, turn up and down the settings of a selected item. ËHierarchical shift » Press the "ENTER" key on any item other than I2C DATA on Page 4, the setting page of the item will show up. » To quit the setting page, press the "PREVIOUS SCREEN" key.

...

LC-15S4U-S

5. T ake the following procedure when IC2009 (EEPROM) has been initialized or IC2001 (microprocessor) replaced.

5-1. Connect pins (81) and (82) of IC2001 (microprocessor) to GND, and turn on the power. 5-2. Make sure "15" (inches) is selected for the screen size. 5-3. Make sure the model number "A631B" is selected.

(Onscreen display of adjustment process menu page 1)

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

0 1 2 3 4 5 6

MOD E L 6A3

INCH SIZE ERROR NO R ESE T PUB L IC MODE

–

V EXT CONTROL

CHI P

1B 1

F 1 F

6. Adjustments

6-1. Common bias adjustment

1) Select the "COM BIAS" mode on adjustment process menu page 2. Press the "cursor RIGHT/LEFT" keys to generate the built-in signal.

2) Using the "cursor RIGHT/LEFT" keys, readjust the setting so that flickering gets to minimum.

3) To quit the built-in signal pattern, press the "cursor UP/DOWN" keys. The adjustment process mode screen

reappears. 6-2. TAMP adjustment

1) Feed the 100% white raster signal through the antenna input.

2) See if the "YDATA" reading on adjustment process menu page 2 is within the range in the table below. If not,

select the "NTSC TAMP" item on the same page. Press the "cursor RIGHT/LEFT" keys to scroll down the item. Using the "cursor RIGHT/LEFT" keys again, readjust the "YDATA" reading to within the range shown below. Then add 6 to the "NTSC TAMP" setting and enter this value for "PAL-M TAMP" and "PAL-N TAMP".

3) Finally press the "cursor UP/DOWN" keys to return to the adjustment process mode screen.

Model LC-15S4U-S

Setting (NTSC) 155-158

5 0

Reference (Onscreen display of adjustment process menu page 2)

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

0 1 2 3 4 5 6

7 8

COM B I A S

TAMP L

YDA TA

TAMP H NTSC TAMP PAL PAL

– –

TMAMP TNAMP

Y data

(white 100%)

12510

51 51 9 9 9

5 8 8

0 6 6

LC-15S4U-S

6-3. White balance adjustment

1) Adjustment procedure Adjustment process menu page 3: RGB CUTOFF2, RGB-GAIN Feed the 40% white signal. Move the RCUTOFF2 and B-CUTOFF2 settings within ±30 to adjust the white balance. Next feed the 80% white signal. Reduce the GAIN settings of two stronger of the R, G and B colors by 30 to adjust the white balance. Taking these steps alternately, finely adjust the white balance.

Reference: White balance process adjustment values (1) Test signal adjustment

Adjustment spec.

White 80% x 0.282 ±0.004

y 0.291 ±0.004

White 40% x 0.262 ±0.002

y 0.269 ±0.002

[Adjusting with the bus] Cut-off (RGB CUTOFF2) Fix the G setting at 0. Vary the R and B settings. Adjustable range ±30. Gain (RGB GAIN): Reduce the settings of the two stronger colors. Adjusted down to -30. (The values are based on the Minolta CA-210.)

7. Factory settings

7-1. Making factory settings

1) Hold down the "INPUT" and "VOL (–)" keys at once, and turn on the power switch.

"K" appears at the top left onscreen to indicate that the inspection process mode is on.

2) Hold down the "CH (ù)" and "VOL (+)" keys. A few seconds later, "SETTING COMPLETE" appears at the center of the screen. Now the factory settings are complete.

SETTING COMPLETE

LC-15S4U-S

7-2. Description of Factory Settings.

Setting content/range Initial

MENU PICTURE AV MODE STANDARD/DYNAMIC/DYNAMIC(FIXED)/MOVIE/GAME DYNAMIC DYNAMIC DYNAMIC DYNAMIC

(Items other than MENU)

LAST CHANNEL

LAST TV/INPUT FLASH BACK SKIP DATA_CATV ALL SKIP SKIP DATA_AIR ALL SKIP VOLUME 20 LINE OUT LEVEL(VAO) EDS CH (AUTO)

OPC ON/OFF OFF BACKLIGHT BRIGHT/NORMAL/DARK/VARIABLE VARIABLE

CONTRAST 0~60 30 45 60 25 30 BRIGHTNESS -30~+30 COLOR 0 +5 +10 0 0 TINT 00000 SHARPNESS 00000 ADVANCED COLOR TEMP. USER/HIGH/MIDDLE/LOW

RESET YES/NO NO

AUDIO TREBLE 0

BASS 0 BALANCE 0 RESET YES/NO NO

SETUP CH-SETTING EZ-SETUP YES/NO YES

MTS STEREO/SAP/MONO STEREO CLOCK SET AUTO/MANUAL AUTO

INPUT3 IN/OUT IN/OUT /OUT IN V-CHIP BLOCK SECRET No. 4 digits input Clear

CLOSED CAPTION OFF/CC1/CC2/T1/T2 OFF

COLOR SYSTEM 20 N358 N358 N358

LANGUAGE ENGLISH/ESPANOL/FRANCAIS ENGLISH

OPTION VIEW MODE 4:3/16:9/ZOOM/STRETCH 4:3

AUDIO ONLY ON/OFF OFF BLUE SCREEN ON/OFF OFF SLEEP TIMER OFF/30/60/90/120/150MIN OFF(Clear) WAKE UP TIMER TIMER ON/OFF OFF

NO SIGNAL OFF ENABLE/DISABLE NO OPERATION OFF ENABLE/DISABLE PICTURE FLIP NORMAL/MIRROR/ROTATE/UPSIDE DOWN NORMAL

ONEZ SETUP 2ch TV 2ch

RED 0 GREEN 0 BLUE 0 RESET YES/NO NO

LANGUAGE ENGLISH/ESPANOL/FRANCAIS ENGLISH CH SETTING ON/OFF ON AUTO CLOCK ON/OFF ON

AIR/CABLE AIR/CABLE AIR CH SEARCH CH MEMORY -

TIME DISPLAY ON/OFF ON

MPAA G (NONE)/BLOCK NONE

TV GUIDELINES TV-Y (NONE)/BLOCK NONE

CAN.ENGLISH RATINGS

CAN.FRENCH RATINGS

STATUS ON/OFF OFF

TIME 12:00AM~11:59PM CHANNEL CH1~125/COMPONENT1/COMPONENT2 or AV1/AV2 CH2 VOL. 0~60 20

START YES/NO YES

AUTO AUTO/[2]~[69] or [1]~[125] AUTO MANUAL DST ON/OFF OFF

PG (NONE)/BLOCK NONE PG-13 (NONE)/BLOCK NONE R (NONE)/BLOCK NONE NC-17 (NONE)/BLOCK NONE X (NONE)/BLOCK NONE

TV-Y7 (NONE)/BLOCK NONE TV-G (NONE)/BLOCK NONE TV-PG (NONE)/BLOCK NONE TV-14 (NONE)/BLOCK NONE TV-MA (NONE)/BLOCK NONE BLOCK CONTENT

C (NONE)/BLOCK NONE C8+ (NONE)/BLOCK NONE G (NONE)/BLOCK NONE PG (NONE)/BLOCK NONE 14+ (NONE)/BLOCK NONE 18+ (NONE)/BLOCK NONE G (NONE)/BLOCK NONE 8 ans+ (NONE)/BLOCK NONE 13 ans+ (NONE)/BLOCK NONE 16 ans+ (NONE)/BLOCK NONE 18 ans+ (NONE)/BLOCK NONE

TIME 12:00AM~11:59PM 12:00AM

D (BLANK)/BLOCK BLANK (UN BLOCK) L (BLANK)/BLOCK BLANK (UN BLOCK) S (BLANK)/BLOCK BLANK (UN BLOCK) V (BLANK)/BLOCK BLANK (UN BLOCK) FV (BLANK)/BLOCK BLANK (UN BLOCK)

1 (DARK) ~9 (NORMAL)~17 (BRIGHT) 17 17 17 7 9

-30~+30

-10~+10

-30~+30

-10~+10

-10(L)~+10(R)

N358/N443/PAL/PAL-M/PAL-N/SECAM/PAL60

(Only for N358/PAL-M/PAL-N in TV mode)

Value

(STANDARD) (DYNAMIC) (DYNAMIC(FIXED) (MOVIE) (GAME)

00000

MIDDLE

(TV) (AV1) (AV2)

12:00AM

DISABLE DISABLE

(AV1) (AV2) (COMPONENT1)

8. Lamp error detection

8-1. Functional description

This LCD color television has a function (lamp error detection) to be turned off automatically for safety when the lamp or lamp circuit is abnormal. If the lamp or lamp circuit is abnormal, or some other errors happen, and the lamp error detection is executed, the followings occur. 1 The main unit of television is turned off 5 seconds after it is turned on. (The power LED on the front side of

TV turns from green to red.)

2 If the situation 1 happens 5 times sequentially , television can not be turned on. (The power LED remains

red.)

8-2. Countermeasures 8-2-1. Check when turning off the lamp error detection

When television is turned off by the lamp error detection mentioned above, it enters the adjustment process with the power LED red. Entering the adjustment process turns off the error detection and turns on TV. This enables the operation check to detect errors in the lamp or lamp circuit. Check whether "ERROR NO RESET" on line 4, page 1 of the adjustment process is 1 or more. If it is 1 or more, it indicates the lamp error detection was executed.

8-2-2. Resetting of the lamp error count

After confirming that the lamp or lamp circuit is normal, reset the lamp error count. Select "ERROR NO RESET" on line 4, page 1 of the adjustment process and set the number to 0 using the "VOL (+)/(–)" keys.

LC-15S4U-S

Page 1 of the adjustment process

M O D E L A631B I N C H S I Z E 15 E R R O R N O R E S E T 5 P U B L I C M O D E OFF V – C H I P 1 E X T C O N T R O L OFF

V E R R O M 1. X X A G AI B U X. X X X

Reset 0

Afterwards, perform the operation check to confirm that the lamp error detection does not function.

LC-15S4U-S

LIST OF THE ADJUSTMENT PROCESS MODE MENU

For calling the adjustment process mode and keying in this mode, refer back to "ADJUSTING PROCEDURE OF EACH SECTION".

ADJUSTMENT PROCESS 1st LEVEL ITEM DEFAULT TABLE

Page No. Item

BASIC SETTINGS

1 MODEL A631B

INCH SIZE 15

ERROR NO RESET 0 PUBLIC MODE OFF V-CHIP 1 EXT CONTROL ON ROM AND GAIBU VERSION NUMBERS DISPLAYED AT THE BOTTOM.

Initial

Value (Do not change other items than designated.)

MODEL NUMBER SELECT NOT MODIFIABLE SCREEN SIZE SELECT (20-INCH AND 13/15-INCH SETTINGS NOT SWITCHABLE IN CASE OF DIFFERENT SYSTEMS) LAMP ERROR COUNT AND RESET SEE THE LAMP ERROR DETECTION. HOTEL MODE SETTING NOT USED VCHIP LINE MUTE SETTING NOT USED BUS, UART OPEN NOT USED

Function

Response precautions on servicing

USED FOR ADJUSTMENT PROCESS INITIALIZATION, NOT MODIFIABLE FOR

OTHER CASES. DATA REWRITE AND READJUSTMENT REQUIRED WHEN INITIALIZED.

VIDEO ADJUSTMENT

2 COM BIAS 120

TAMP L 155 YDATA —

TAMP H 158 NTSC TAMP 90 TAMP ADJUSTMENT SEE THE ADJUSTMENT PROCEDURES. PAL-M TAMP 96 T AMP ADJUSTMENT SEE THE ADJUSTMENT PROCEDURES. PAL-N TAMP 96 T AMP ADJUSTMENT SEE THE ADJUSTMENT PROCEDURES.

BACKGROUND ADJUSTMENT

TABLE OF VARIOUS SETTINGS

9 I2C DATA 0

R CUTOFF2 0 RED CUT-OFF ADJUSTMENT 2 SEE THE ADJUSTMENT PROCEDURES. G CUTOFF2 0 GREEN CUT-OFF ADJUSTMENT 2 SEE THE ADJUSTMENT PROCEDURES. B CUTOFF2 0 BLUE CUT-OFF ADJUSTMENT 2 SEE THE ADJUSTMENT PROCEDURES. R-GAIN 0 WHITE BALANCE ADJUSTMENT 2 SEE THE ADJUSTMENT PROCEDURES. G-GAIN 0 WHITE BALANCE ADJUSTMENT 2 SEE THE ADJUSTMENT PROCEDURES. B-GAIN 0 WHITE BALANCE ADJUSTMENT 2 SEE THE ADJUSTMENT PROCEDURES. RGB GAMMA 1.0 RGB γ COEFFICIENT SETTING NOT USED

I2C DATA SOUND —

DVP — TUNER — OTHERS —

COMMON BIAS ADJUSTMENT SEE THE ADJUSTMENT PROCEDURES. Y LOWER LIMIT SETTING AT TAMP ADJUSTMENT DATA READ VALUE AT TAMP ADJUSTMENT Y UPPER LIMIT SETTING AT TAMP ADJUSTMENT

I2C BUS CONTROL IC DATA WRITE AND READ

WAIT WRITE AND READ EXECUTED NOT USED

SHIFT TO THE SOUND ADJUSTMENT PAGE SHIFT TO THE DVP ADJUSTMENT PAGE SHIFT TO THE TUNER ADJUSTMENT PAGE SHIFT TO THE OTHER ADJUSTMENT PAGE

NOT USED SEE THE ADJUSTMENT PROCEDURES. NOT USED

NOT USED

USE ENTER KEY TO GO TO THE SOUND ADJUSTMENT PAGE. USE ENTER KEY TO GO TO THE TC ADJUSTMENT PAGE. USE ENTER KEY TO GO TO THE TUNER ADJUSTMENT PAGE. USE ENTER KEY TO GO TO THE OTHER ADJUSTMENT PAGE.

AUDIO ADJUSTMENT PROCESS SPECIFICATIONS

Page No. Item

AUDIO ADJUSTMENT

SOUND1 VOLUME 20 SOUND VOLUME

MSP DATA 0 MSP DATA CARRIER MUTE ON IGR THR 12D IGR THRESH LEVEL

AUDIO ADJUSTMENT

SOUND2 PRESCALE SCART 27

PRESCALE FM/AM-M 31 PRE-SCALE SETTING (TV) NOT USED

Initial

Value (Do not change other items than designated.)

AUDIO IC MSP DATA WRITE AND READ

WAIT

WRITE AND READ EXECUTED AUDIO OUTPUT SETTING WITHOUT TV SYNC

PRE-SCALE SETTING (EXTERNAL INPUT)

Function

Response precautions on servicing

NOT USED NOT USED NOT USED NOT USED NOT USED

NOT USED

LC-15S4U-S

Page No. Item

AUDIO ADJUSTMENT

SOUND3 BAND1 MIN TV -0350

OTHER -0350

BAND1 CNT TV +0450

OTHER +0450

BAND1 MAX TV +1200

OTHER +1200

BAND2 MIN TV +0100

OTHER +0100

BAND2 CNT TV +0400

OTHER +0400

BAND2 MAX TV +0700

OTHER +0700

BAND3 MIN TV -0225

OTHER -0225

AUDIO ADJUSTMENT

SOUND4 BAND4 MIN TV -0825

OTHER -0825

BAND4 CNT TV -0525

OTHER -0525

BAND4 MAX TV -0225

OTHER -0225

BAND5 MIN TV -1200

OTHER -1200

BAND5 CNT TV -0550

OTHER -0550

BAND5 MAX TV +0250

OTHER +0250

Initial

Value (Do not change other items than designated.)

EQUALIZER SETTING (WITH TV INPUT) EQUALIZER SETTING (WITH OTHER INPUT THAN TV) EQUALIZER SETTING (WITH TV INPUT) EQUALIZER SETTING (WITH OTHER INPUT THAN TV) EQUALIZER SETTING (WITH TV INPUT) EQUALIZER SETTING (WITH OTHER INPUT THAN TV) EQUALIZER SETTING (WITH TV INPUT) EQUALIZER SETTING (WITH OTHER INPUT THAN TV) EQUALIZER SETTING (WITH TV INPUT) EQUALIZER SETTING (WITH OTHER INPUT THAN TV) EQUALIZER SETTING (WITH TV INPUT) EQUALIZER SETTING (WITH OTHER INPUT THAN TV) EQUALIZER SETTING (WITH TV INPUT) EQUALIZER SETTING (WITH OTHER INPUT THAN TV)

Function

Response precautions on servicing

NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED

NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED

AUDIO ADJUSTMENT PROCESS SPECIFICATIONS

Page No. Item

VIDEO ADJUSTMENT

DVP1 DVP DATA 0000 F0 ------(----) -

DVP TEST PATTERN 0 TEST PATTERN SELECT VCDOFFSET 15 VCDWINDOW 30

VIDEO ADJUSTMENT

DVP3 N358 TV CONTRAST 128 IMAGE SETTING (TV) NOT USED

N358 AV CONTRAST 128 N358 TV BRIGHT 128 BRIGHTNESS SETTING (TV) NOT USED N358 AV BRIGHT 128 N358 TV COLOR 37 COLOR DENSITY SETTING (TV) NOT USED N358 AV COLOR 37 N358 TV TINT 128 TINT SETTING (TV) NOT USED N358 AV TINT 128 N358 TV SHARP V 100 V PICTURE QUALITY SETTING (TV) NOT USED N358 AV SHARP V 100 N358 TV SHARP H1 200 H PICTURE QUALITY SETTING 1 (TV) NOT USED N358 AV SHARP H1 200 N358 TV SHARP H2 150 H PICTURE QUALITY SETTING 2 (TV) NOT USED N358 AV SHARP H2 160

Initial

Value (Do not change other items than designated.)

DVP-RELATED GENERAL-PURPOSE VARIABLE SETTINGS

VERTICAL COUNT-DOWN MINIMUM OSCILLATION CYCLE VERTICAL COUNT-DOWN SYNC RANGE

IMAGE SETTING (COMPOSITE, S VIDEO)

BRIGHTNESS SETTING (COMPOSITE, S VIDEO)

COLOR DENSITY SETTING (COMPOSITE, S VIDEO)

TINT SETTING (COMPOSITE, S VIDEO)

V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO)

H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO)

H PICTURE QUALITY SETTING 2 (COMPOSITE, S VIDEO)

Function

NOT USED SEE THE ADJUSTMENT PROCESS MODE TEST PATTERNS. NOT USED NOT USED

NOT USED

Response precautions on servicing

LC-15S4U-S

Page No. Item

VIDEO ADJUSTMENT

DVP4 N443 AV CONTRAST 128

N443 AV BRIGHT 128 N443 AV COLOR 37 N443 AV TINT 128 N443 AV SHARP V 100 N443 AV SHARP H1 200 N443 AV SHARP H2 160

VIDEO ADJUSTMENT

DVP5 PAL AV CONTRAST 128

PAL AV BRIGHT 128 PAL AV COLOR 37 PAL AV TINT 128 PAL AV SHARP V 100 PAL AV SHARP H1 200 PAL AV SHARP H2 160

VIDEO ADJUSTMENT

DVP6 SECAM AV CONTRAST 128

SECAM AV BRIGHT 128 SECAM AV COLOR 37 SECAM AV TINT 128 SECAM AV SHARP V 100 SECAM AV SHARP H1 200 SECAM AV SHARP H2 160

Initial

Value (Do not change other items than designated.)

IMAGE SETTING (COMPOSITE, S VIDEO) BRIGHTNESS SETTING (COMPOSITE, S VIDEO) COLOR DENSITY SETTING (COMPOSITE, S VIDEO) TINT SETTING (COMPOSITE, S VIDEO) V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) H PICTURE QUALITY SETTING 2 (COMPOSITE, S VIDEO)

Function

Response precautions on servicing

NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED

VIDEO ADJUSTMENT

DVP7 PAL60 AV CONT 128

PAL60 AV BRIGHT 128 PAL60 AV COLOR 37 PAL60 AV TINT 128 PAL60 AV SHARP V 100 PAL60 AV SHARP H1 200 PAL60 AV SHARP H2 160

VIDEO ADJUSTMENT

DVP8 PAL-M TV CONTRAST 128 IMAGE SETTING (TV) NOT USED

PAL-M A V CONTRAST 128 PAL-M TV BRIGHT 128 BRIGHTNESS SETTING (TV) NOT USED PAL-M A V BRIGHT 128 PAL-M TV COLOR 37 COLOR DENSITY SETTING (TV) NOT USED PAL-M A V COLOR 37 PAL-M TV TINT 128 TINT SETTING (TV) NOT USED PAL-M A V TINT 128 PAL-M TV SHARP V 100 V PICTURE QUALITY SETTING (TV) NOT USED PAL-M AV SHARP V 100 PAL-M TV SHARP H1 200 H PICTURE QUALITY SETTING 1 (TV) NOT USED PAL-M AV SHARP H1 200 PAL-M TV SHARP H2 150 H PICTURE QUALITY SETTING 2 (TV) NOT USED PAL-M AV SHARP H2 160

IMAGE SETTING (COMPOSITE, S VIDEO)

BRIGHTNESS SETTING (COMPOSITE, S VIDEO)

COLOR DENSITY SETTING (COMPOSITE, S VIDEO)

TINT SETTING (COMPOSITE, S VIDEO)

V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO)

H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO)

H PICTURE QUALITY SETTING 2 (COMPOSITE, S VIDEO)

NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED

NOT USED

+ 46 hidden pages

SHARP LC15S4US Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

IMPORTANT SERVICE SAFETY PRECAUTION

SPECIFICATIONS

OPERATION MANUAL

DIMENSIONS

REMOVING OF MAJOR PARTS

ADJUSTING PROCEDURE OF EACH SECTION