SHARP LC20B8US, LC-20B9U-S, LC-20B9U Service Manual

Download

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

SERVICE MANUAL

S45H7LC20B9US

LCD COLOR TELEVISION

LC-20B8U-S LC-20B9U-S

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.

CONTENTS

» IMPORTANT SERVICE SAFETY PRECAUTION.........................................................................................2

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

» OPERA TION MANUAL .................................................................................................................................6

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

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

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

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

» TROUBLE SHOOTING TABLE ..................................................................................................................29

» MAJOR IC INFORMATION.........................................................................................................................34

» BLOCK DIAGRAM......................................................................................................................................42

» OVERALL WIRING DIAGRAM ...................................................................................................................44

» DESCRIPTION OF SCHEMATIC DIAGRAM .............................................................................................46

» SCHEMATIC DIAGRAM

ËR/C, LED Unit ..........................................................................................................................................47

ËMAIN Unit.................................................................................................................................................48

ËSUB Unit ..................................................................................................................................................72

ËPOWER Unit ............................................................................................................................................76

ËINVERTER Unit .......................................................................................................................................86

» PRINTED WIRING BOARD ASSEMBLIES................................................................................................88

» REPLACEMENT PARTS LIST..................................................................................................................109

» PACKING OF THE SET............................................................................................................................127

LC-20B9U-SM

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-20B8U-S

LC-20B9U-S LC-20B9U-SM

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 SA ME

A V

TYPE F6701 (6.3A, 250V) AND F7701 (3.15A, 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

23456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012

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 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.

components having such features are identified by " å"

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

Replacement Parts Lists

and

LC-20B8U-S

LC-20B9U-S LC-20B9U-SM

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants.

AVERTISSEMENT

• Utiliser un voltmètre CA d'une sensibilité d'au moins 5000Ω/V pour mesurer la chute de tension en travers

1. N'entreprendre aucune modification de tout circuit. C'est dangereux.

2. Débrancher le récepteur avant toute réparation.

PRECAUTION: POUR LA PROTECTION CONTINUE CONTRE LES RISQUES D'INCENDIE, REMPLACER LE

A V

FUSIBLE P AR UN FUSIBLE DE MEME TYPE F6701 (6.3A, 250V), F7701 (3.15A, 250V).

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 peut être utilisée dans le but de terminer ces vérifications.) Tous les courants mesurés ne doivent pas dépasser

0.5 mA.

VERIFICA TIONS CONTRE L'INCEN-DIE ET LE CHOC ELECTRIQUE

Avant de rendre le récepteur à l'utilisateur, effectuer

Dans le cas contraire, il y a une possibilité de choc électrique qui doit être supprimée avant de rendre le récepteur au client.

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

DVM

ECHELLE CA

1.5k ohm 10W

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

0.15 µF

SONDE D'ESSAI

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

AUX PIECES METALLIQUES EXPOSEES

BRANCHER A UNE TERRE CONNUE

conduite électrique ou une prise de terre branchée à la terre.

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

AVIS POUR LA SECURITE

De nombreuses pièces, électriques et mécaniques, dans les téléviseurs 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

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

identifiées par la marque " å " 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.

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

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 20" Advanced Super View & BLACK TFT LCD Number of dots 2,359,296 dots XGA 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 3D Y/C FILTER Brightness

Viewing angles H: 170° V: 170° Audio amplifier 2.1 W × 2 Speakers ø2.0 in. (ø5.0 cm), 2 pcs.

INPUT1 AUDIO-IN, COMPONENT-IN INPUT2 AUDIO-IN, COMPONENT-IN INPUT3 AUDIO-IN, VIDEO-IN, S-VIDEO-IN

Terminals INPUT4/OUTPUT AUDIO-IN, VIDEO-IN/AUDIO-OUT, VIDEO-OUT

INPUT5 PC Connector: 15-pin mini D-sub PC AUDIO: Mini-jack for stereo (ø3.5 mm) Antenna F-Type Headphone Mini-jack for stereo (ø3.5 mm)

OSD language English/Spanish/French Power supply AC 110-240V, 50/60Hz Power consumption 81 W (0.6 W standby): AC 120V Weight 19.4 lbs. (8.8 kg), w/o accessories

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-20B8U/LC-20B9U

480 cd/m

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

LC-20B8U-S

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.

Headphone jack (

)

Plug the headphone mini-plug into the headphone

jack located

on the front of the main unit.

OPC (Optical Picture Control)

sensor

Remote sensor

OPC (Optical Picture Control) indicator

The OPC indicator lights up green when "OPC" is

set to "ON".

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).

To change the vertical angle of the LCD TV

set, tilt the screen up to 2.5 degrees forward

or 10 degrees backward. The LCD TV set can

also be rotated up to 12 degrees to right and

left. Please adjust the angle so that the LCD

TV set can be watched most comfortably.

POWER

Upper control panel

INPUT

CH (Channel) (

)/(

)

VOL (Volume)

(–)/(+)

Speaker

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

ËPlug

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.

Ë On-screen display

VOLUME

Adjust

the sound volume

using VOL

(

)/(

–

) on

the

remote

control.

Headphones

Speaker

Terminals

)

(

Carrying handle

Rear View

AUDIO (L)

AUDIO (R)

AUDIO (L)

AUDIO (R)

AUDIO

ANALOG RGB

S-VIDEO

AUDIO (L)

AUDIO (R)

VIDEO

AUDIO (L)

AUDIO (R)

VIDEO

INPUT2

(COMPONENT)

ANT

(Antenna terminal)

AC INPUT

(AC 110-240 V)

INPUT5

(PC-IN)

INPUT4/

OUTPUT

INPUT1

(COMPONENT)

INPUT3

Round lock for

Kensington Security

Standard slot*

)

(

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

Pull down the hook

to open the cover.

* 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.

LC-20B9U-S LC-20B9U-SM

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, INPUT4,

INPUT5 (PC) 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 volume.

MTS

Selects audio settings.

TV Signals in Your Region

This product is factory set to comply with the TV broadcasting system in the United States. For Brazil, Argentina and Uruguay,

set the color system according to the country before using this product by following the table below.

U.S.A.

Color: NTSC NTSC (N358) NTSC (N358)

TV ch: US ch US ch US ch

Not required or N/A

Canada, Mexico, Color: NTSC NTSC (N358) NTSC (N358)

Latin America TV ch: US ch US ch US ch

Not required or N/A

Brazil

Color: PAL-M NTSC (N358) NTSC (N358) Set color system to

TV ch: US ch US ch US ch PAL-M

Argentina, Color: PAL-N NTSC (N358) NTSC (N358) Set color system to

Uruguay TV ch: US ch US ch US ch PAL-N

• The 3 Dimensional Y/C separation circuit* only works when the color system is set to N358 in TV mode and Video mode.

* The 3 Dimensional Y/C separation circuit is used to remove flickering and color bleeding.

* The 3 Dimensional Y/C separation circuit does not function when S-VIDEO or COMPONENT signals are input.

broadcasting

system

Factory setting of color system User setting

TV Video TV/Video

Country

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.

Using the Remote Control

Ë Use the remote control by pointing it towards the remote sensor

window of the main unit. Objects between the remote control and

sensor window may prevent proper operation.

Cautions regarding use of the remote control

Ë Do not apply shock to the remote control. In addition, do not

expose the remote control to liquids, and do not place it in an area

with high humidity.

Ë Do not install or place the remote control in direct sunlight. The

heat may cause deformation of the unit.

Ë The remote control may not work properly if the remote sensor

window is in direct sunlight or strong lighting. In such a case,

change the angle of the lighting or main unit, or operate the

remote control closer to the remote sensor window.

Ë Slide the cover while

pressing the (

) part.

Headphone jack

OPC indicator

POWER/WAKE UP TIMER

indicator

Remote sensor

OPC sensor

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

DIMENSIONS

1319/32(345)

/64(444)

/8(638)

Unit: inch (mm)

/32(134)

/8(92)211/16(68)

(443)

/ 17

(100)

/ 3

/64(410.5)

(389)

(308.4)

(54)

315/16(100)

(45)

(256)

/32(242)

(413)

)(

REMOVING OF MAJOR PARTS

1. Remove the stand cover fixing screw (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 (4 pcs.).

6. Remove the cabinet B fixing screws (9 pcs.).

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

8. Remove the stand angle fixing screws (5 pcs.).

9. Disconnect all the connectors from all the PWBs.

Cabinet B

Cabinet A

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

Carrying Handle

Stand Angle

Stand Cover

Stand

Terminal Cover

Power PWB

Inverter PWB

P6702

P6703

SC7701

Sub PWB

SC3402

P6704

R/C, LED PWB

P6705

P6706

P6707

SC2003

SC7702

SC4001

P7705

SC2004

SC1201

SC2001

Main PWB

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

10. Remove the inverter PWB fixing screws (3 pcs.).

11. Remove the power PWB fixing screws (6 pcs.).

12. Remove the sub PWB fixing screws (4 pcs.).

13. Remove the chassis frame fixing screws (3 pcs.).

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

15. Remove the main PWB fixing screws (4 pcs.).

16. Remove the 4 lock screws each from the right and left speakers and take out both the speakers.

Inverter PWB

Speaker (R)

Power PWB

Sub PWB

Chassis Frame

Speaker (L)

R/C, LED PWB

Main PWB

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

» Precautions in handling the LCD panel

1. Handle it in a clean room. (above 50% humidity)

2. The worker must wear an earth band.

3. Be careful not to drop, vibrate and shock the panel.

4. Use an ionizer. (within 30 cm)

17. Remove the three lock screws from the LCD panel, and detach the LCD panel unit.

18. Remove the prism sheet (H), (V), diffusion sheet and diffusion plate.

19. Remove the lamp unit from the lamp holder (top). Then detach the (bottom)-left and (bottom)-right lamp holders.

20. Remove the reflection sheets (top) and (bottom) from the back shield.

Back Shield

Reflection Sheet (Top) (PSHEPA205WJZZ)

Lamp Holder (Bottom)-Left (LHLDZA368WJKZ)

Lamp Unit, x6 (KLMP-A034WJZZ)

Lamp Holder (Top), x2 (LHLDZA365WJKZ)

(PSLDMA653WJFW)

Diffusion Sheet (PSHEPA204WJZZ)

Prism Sheet (H) (PSHEPA203WJZZ)

20" LCD Panel Unit

Lamp Holder (Top), x2 (LHLDZA365WJKZ)

Diffusion Plate (PCOVUA035WJZZ)

Prism Sheet (V) (PSHEPA208WJZZ)

Reflection Sheet (Bottom) (PSHEPA206WJZZ)

Lamp Holder (Bottom)-Right (LHLDZA367WJKZ)

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

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

1. Disconnect the FFC for connection between the main PWB (SC1201) and LCD panel (CN1), and then connect the service-specific extension FFC (flat cable) (QCNW-C458WJQZ).

2. Disconnect the SC2001 side of the lead from between the main PWB (SC2001) and the sub PWB (P3401), and then connect the service-specific extension cord (QCNW-D402WJQZ).

3. Disconnect the SC2003 side of the lead from between the main PWB (SC2003) and the power PWB (P7703), and then connect the service-specific extension extension cord (QCNW-C461WJQZ).

4. Disconnect the SC2004 side of the lead from between the main PWB (SC2004) and the power PWB (P7702), and then connect the service-specific extension cord (QCNW-D402WJQZ).

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

»Precautions in servicing the Chip Parts side (backside) of the inverter PWB unit

6. Disconnect the SC7701 side of the lead from between the power PWB (SC7701) and the inverter PWB (P6701), and then connect the service-specific extension cord (QCNW-C460WJQZ).

7. Remove the lock screws from the inverter PWB and then turn it over to service.

»Precautions in servicing the Chip Parts side (backside) of the power PWB unit (main/sub PWB)

8. Disconnect the SC7701 side of the lead from between the power PWB (SC7701) and the inverter PWB (P6701), and then connect the service-specific extension cord (QCNW-C460WJQZ).

9. Remove the PWB fixing screws (main unit: 4 pcs., sub unit: 4 pcs., power unit: 6 pcs.)

Power PWB Sub PWB

Inverter PWB

(Backside)

Inverter PWB

P6701 SC7701

P7702

Power PWB (Backside)

SC2003

SC2004

SC1201

Main PWB (Side-B)

Sub PWB

P3401P7703

SC2001

CN1

Main PWB

Step Part No. Description

1 QCNW-C458WJQZ

Extension Cable 80-pin Main (SC1201)-LCD Panel (CN1) 2 QCNW-D402WJQZ Extension Cable 23-pin Main (SC2001)-Sub (P3401) 3 QCNW-C461WJQZ Extension Cable 15-pin Main (SC2003)-Power (P7703) 4 QCNW-D402WJQZ Extension Cable 23-pin Main (SC2004)-Power (P7702)

6, 8 QCNW-C460WJQZ

Extension Cable 19-pin Power (SC7701)-Inverter (P6701)

ADJUSTING PROCEDURE OF EACH SECTION

1. Preparations before adjustment

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

AC110V~240V

[1] Adjustment procedures 1-1. Adjusting the checker

Power on (initialization) → Setting the model number and screen size

1-2. Finishing process adjustments

Assembling → Power on → Adjustment process mode (bus connector) → AD converter level, common bias, TAMP and white balance (cut-off and gain) adjustments

[2] Entering the checker mode/adjustment process mode 2-1. Calling the checker mode * Keep KEY-5 (pin (82) of microprocessor) at "L" level and turn on the power.

KEY-4 KEY-5 Mode shift

H H Normal mode (Fresh data written and saved on EEPROM)

L H Shift to adjustment process mode

Operation with master ROM settings in the checker mode (EEPROM still brand-new after the checker mode) EEPROM initialized and microprocessor's master settings written (process adjustment values not yet written)

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

2-2. Calling the adjustment process mode There are two ways to call this mode. * Keep KEY-4 (pin (81) of microprocessor) at "L" level and turn on the power. * For servicing: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 checker mode is on.) → 2 Press the "CH (Ù)" and "VOL (–)" keys at once. (The adjustment process mode screen shows up.) switch on the set or the remote controller).

[3] Key operation ËBasic operation *Using the "CH (ù)/(Ù)" keys, select a receiving channel. *Using the "INPUT" key, select an input. *Using the "cursor up/down keys, select an adjustment item. (When the "cursor down" key is pressed at the bottom

item of a page, the top item on the next page will be selected. When the "cursor up" key is pressed at the top item

of a page, the bottom item on the previous page will be selected.) *Using the "VOL (+)/(–)" or "cursor right/left" keys, adjust the selected item. *Press the "MENU" key, and the next item will be selected. (When the "MENU" key is pressed at the bottom item

of a page, the top item on the next page will be selected.) ËHierarchical shift

*Press the "ENTER" key on any item other than I2C DATA on Page 9, the setting page of the item will show up. *To quit the setting page, press the "FLASHBACK" key.

.....

T o quit the mode, turn of f the power (using the power

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

[4] Initialization 4-1. Connect both pins (81) and (82) of IC2001 (microprocessor) to GND, and turn on the power. 4-2. Make sure the model number "A628" is selected. *Note: This setting cannot be changed. 4-3. Make sure "20" (inches) is selected for the screen size. *Note: This setting cannot be changed.

(Onscreen display of adjustment process menu page 1)

0112 0 1 2 3 4 5 6 7 8

13S14E15T16 17 18 19 20 21 22A23

I I

[5] Adjustments 5-1. AD converter level adjustment 1 D3 input

1) Feed only the Y component of D3 75% color bar signal. Equipment used: LEADER LT446 Signal name: COLOR BAR 75% Setting: 01: 1920 x 1080 / 60i H: 33.72 kHz, V: 29.97 Hz

2) Turn on the AUTO GAIN-OFFSET1 item on adjustment process page 7.

2 PC input

1) Feed the VGA white 0% signal.

2) Turn on the AUTO OFFSET2 item on adjustment process page 8.

3) Feed the VGA white 100% signal.

4) Turn on the AUTO GAIN2 item on adjustment process page 8.

0 0

F 1

5-2. Common bias adjustment

1) Adjust the "COM BIAS" setting on adjustment process page 2 so that flickering gets to minimum. With the setting changed, the flicker check built-in test pattern will show up.

5-3. T AMP adjustment

1) Receive the 75% standard color bar signal in the TV input mode.

2) If the "YDATA" reading on adjustment process page 2 is not within the range in the table below, readjust the "NTSC TAMP" item on the same page and make sure the "YDATA" reading is as specified. * Note that the setting range may be different from model to model.

3) Then add 6 to the "NTSC TAMP" setting and enter this value for "PAL-M TAMP" and "PAL-N TAMP".

Model LC-20B8U LC-20B9U

Setting 155-158 155-158

Reference

0212

C T Y T N P P

O A D A

T A A

M M

S L L

T P C

H T

A T T

A A

P M M

P P

12 13 14 15 16 17 18 19 20 21

4 1 1 1

5 5 5 5 8 9 9

0 5 7 8 5 1 1

24 25 26 0 1 2 3 4 5 6 7 8

Y Data

(White 75%)

(Onscreen display of adjustment process menu page 2)

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

5-4. White balance adjustment

1) Adjustment procedure (Call the AV input mode with INPUT3 or INPUT4.) Adjust the RGB CUTOFF2 setting for the 40% white level, and the RGB-GAIN setting for the white 80% level. (1) Adjustment [Input signal] White 80% (191 gradations) and white 40% (92 gradations) signals [Adjustment value] RGB CUTOFF2 and RGB-GAIN settings on adjustment process page 3

Adjustment spec. Inspection spec.

White 80% x=0.291 ±0.006 ±0.012 Radius from center point

y=0.300 ±0.006 ±0.012 Radius from center point

(Reference brightness: 300 cd/m2)

White 40% x=0.276 ±0.006 ±0.012 Radius from center point

y=0.282 ±0.006 ±0.012 Radius from center point

(Reference brightness: 50 cd/m2)

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. Adjustable range 0 to -70. (The values are based on the Minolta CA-210.)

[6] Factory settings 6-1. Hold down the "INPUT" and "VOL (–)" keys on the set at once, and turn on the power. Hold down the "CH (ù)"

and "VOL (+)" keys at once. ("SETTING COMPLETE" appears on the screen.) *Note: Immediately after the factory settings have been made, turn off the power switch. (The next time the power is turned on, the set gets started in the EZ SETUP mode. An extra key-in just after the factory setting may cause the set to malfunction.)

SETTING COMPLETE

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

6-2. Intial value of factory settings

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

AUDIO TREBLE -10 ~ +10 0

SETUP CH-SETTING YES/NO

OPTION (TV) (INPUT1) (INPUT2) (INPUT3) (INPUT4)

OPC

BACKLIGHT

CONTRAST BRIGHTNESS COLOR -30 ~ +30 TINT -30 ~ +30 SHARPNESS -10 ~ +10

ADVANCED COLOR TEMP. USER/HIGH/MIDDLE/LOW MIDDLE

RESET

BASS -10 ~ +10 0 BALANCE -10(L) ~ +10 (R) PC SOUND SELECT RESET YES/NO NO Always select "NO" to move to the setting screen.

MTS STEREO/SAP/MONO STEREO CLOCK SET

INPUT4 IN/OUT

V-CHIP BLOCK SECRET No. 4-DIGIT ENTRY CLEAR

CLOSED CAPTION

COLOR SYSTEM

PC SETTING

LANGUAGE ENGLISH/ESPANOL/FRANCAIS

VIEW MODE

AUDIO ONLY ON/OFF

BLUE SCREEN ON/OFF SLEEP TIMER WAKE UP TIMER

NO SIGNAL OFF

NO OPERATION OFF

POWER MANAGEMENT ON/OFF OFF

PICTURE FLIP NORMAL/MIRROR/ROTATE/UPSIDE DOWN NORMAL

RED GREEN 0 BLUE 0 I/P SETTING INTERLACE/PROGRESSIVE PROGRESSIVE NOISE CLEAN FILM MODE QUICK SHOOT ON/OFF ON

RESET

EZ-SETUP

AIR/CABLE AIR/CABLE AIR CH SEARCH CH MEMORY

TIME DISPLAY

MPAA G

TV GUIDELINES TV-Y

CAN.ENGLISH RATINGS

CAN.FRENCH RATINGS G NONE

STATUS ON/OFF OFF

INPUT SIGNAL FINE SYNC. H-POS. -30 ~ +30 0

TIMER ON/OFF TIME 12 : 00AM~11 : 59PM 12 : 00AM CHANNEL VOL. 0~60 20

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

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

PG NONE PG-13 R NC-17 X

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

C C8+ G PG NONE 14+ NONE 18+ NONE

8 ans+ NONE 13 ans+ NONE 16 ans+ NONE 18 ans+ NONE

V-POS. -15 ~ +15 0 CLOCK -15 ~ +15 0 PHASE -15 ~ +15 0 RESET NO Always select "NO" to move to the setting screen.

TIME 12 : 00AM~11 : 59PM 12 : 00AM The clock setting is yet to be made. Follow the display at left to move to the MANUAL CLOCK setting screen.

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

Setting ranges Initial values

ON/OFF OFF OFF

BRIGHT/NORMAL/DARK/VARIABLE VARIABLE VARIABLE

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

0 ~ 60

-30 ~ +30

ON/OFF ON/OFF

YES/NO NO Always select "NO" to move to the setting screen. YES/NO NO Always select "NO" to move to the setting screen.

INPUT1~4/INPUT5 (PC)/TV

YES/NO YES

– –

AUTO/MANUAL

ON/OFF

ON/OFF ON

IN/OUT /OUT× IN

(NONE)/BLOCK (NONE)/BLOCK (NONE)/BLOCK (NONE)/BLOCK (NONE)/BLOCK (NONE)/BLOCK (NONE)/BLOCK (NONE)/BLOCK (NONE)/BLOCK

(BLANK)/BLOCK

(NONE)/BLOCK NONE

OFF/CC1/CC2/T1/T2 OFF

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

(* N358/PAL-M/PAL-N IN TV MODE) N358 AUTO

1024×768 (60Hz)/800×600(60Hz)/ 800×600(56Hz)/640×480(60Hz)

YES/NO

4 : 3/16 : 9/ZOOM/STRETCH

OFF/30/60/90/120/150MIN OFF (CLEAR) Always select "OFF" to move to the setting screen.

CH1~125/INPUT1~INPUT4

ENABLE/DISABLE DISABLE ENABLE/DISABLE DISABLE

(TV) (INPUT1) (INPUT2) (INPUT3)

(Except PC) (PC)

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

17 17 17 7 30 40 40 30

0000 0 0000 0000

(Except PC) (PC)

OFF OFF

INPUT5 (PC)

YES

ENGLISH

– –

AUTO

OFF

NONE

NONE NONE NONE NONE NONE

NONE NONE

BLANK (UN BLOCK)

NONE NONE

(TV)

1024x768 (60Hz)

ENGLISH

OFF OFF

OFF

CH2

+5 +5 0

MIDDLE

0 0 0

(INPUT3) (INPUT4)

AUTO

(INPUT4)

4 : 34 : 34 : 34 : 34 : 3

9 30 0 0 0 0

17(BRIGHT)

– – – – –

(Items not on the menu) Initial values EZ SETUP AUTO START ON LAST CHANNEL LAST TV/INPUT TV FLASH BACK 2ch SKIP DATA_CATV ALL SKIP SKIP DATA_AIR ALL SKIP VOLUME 20 LINE OUT LEVEL (AT VAO) 0 EDS CH (FOR AUTO) NOT ESTABLISHED

HOTEL MODE POWER ON FIXED VARIABLE

MAXIMUM VOLUME VOLUME FIXED VARIABLE REMOTE CONTROL USER CONTROL MENU BUTTON ON SCREEN DISPLAY START MODE NORMAL INPUT MODE FIXED VARIABLE

2ch

RESPOND RESPOND RESPOND YES

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

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".

DEFAULT CHART OF ADJUSTMENT PROCESS 1ST HIERARCHICAL ITEMS

Page No. Item

BASIC SETTING

1 MODEL A628

INCH SIZE 20

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

Initial

Value (Do not change other items than designated.)

MODEL NAME SELECTION CANNOT BE CHANGED. SCREEN SIZE SELECT (20-INCH AND USED FOR INITIALIZATION, NOT 13/15-INCH SETTINGS NOT MODIFIABLE FOR OTHER CASES. SWITCHABLE IN CASE OF DATA FOR OTHER CASES. DATA REWRITE DIFFERENT SYSTEMS) AND READJUSTMENT REQUIRED WHEN

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

WHEN INITIALIZED.

VIDEO ADJUSTMENT

2 COM BIAS 410

TAMP L 155 YDATA —

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

WHITE BALANCE ADJUSTMENT

1125I/750P AD ADJUSTMENT

7 AD9883 DATA 0

R CUTOFF2 0 RED CUT-OFF ADJUSTMENT 2 REFER TO METHOD OF ADJUSTMENT. G CUTOFF2 0 GREEN CUT-OFF ADJUSTMENT 2 REFER TO METHOD OF ADJUSTMENT. B CUTOFF2 0 BLUE CUT-OFF ADJUSTMENT 2 REFER TO METHOD OF ADJUSTMENT. R-GAIN 0 WHITE BALANCE ADJUSTMENT 2 REFER TO METHOD OF ADJUSTMENT . G-GAIN 0 WHITE BALANCE ADJUSTMENT 2 REFER TO METHOD OF ADJUSTMENT. B-GAIN 0 WHITE BALANCE ADJUSTMENT 2 REFER TO METHOD OF ADJUSTMENT. RGB GAMMA 1 RGB γ COEFFICIENT SETTING NOT USED

AD9883 DATA WAIT WRITE AND READ EXECUTED NOT USED AUTO GAIN-OFFSET1 OFF AD R GAIN 140 AD G GAIN 140 AD B GAIN 140 AD R OFFSET 56 AD G OFFSET 56 AD B OFFSET 56 RGTAR A3 GGTAR A3 BGTAR A3 RGCAL — GGCAL — BGCAL — ROCAL — GOCAL — BOCAL —

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

AD9883 DATA WRITE AND READ NOT USED

AD9883 GAIN AND OFFSET AUTO ADJUSTMENT OFF/RUN 1125I, 750P INPUT RED GAIN ADJUSTMENT 1125I, 750P INPUT GREEN GAIN ADJUSTMENT 1125I, 750P INPUT BLUE GAIN ADJUSTMENT 1125I, 750P INPUT RED OFFSET ADJUSTMENT 1125I, 750P INPUT GREEN OFFSET ADJUSTMENT 1125I, 750P INPUT BLUE OFFSET ADJUSTMENT 1125I, 750P INPUT RED GAIN ADJUSTMENT TARGET 1125I, 750P INPUT GREEN GAIN ADJUSTMENT TARGET 1125I, 750P INPUT BLUE GAIN ADJUSTMENT TARGET Y LEVEL, CHROMA CALCULATION DISPLAY Y LEVEL, CHROMA CALCULATION DISPLAY Y LEVEL, CHROMA CALCULATION DISPLAY CLAMP RANGE Y LEVEL, WHITE LEVEL CALCULATION DISPLAY CLAMP RANGE Y LEVEL, WHITE LEVEL CALCULATION DISPLAY CLAMP RANGE Y LEVEL, WHITE LEVEL CALCULATION DISPLAY

NOT USED SEE THE ADJUSTMENT PROCEDURES. NOT USED

REFER TO METHOD OF ADJUSTMENT. REFER TO METHOD OF ADJUSTMENT. REFER TO METHOD OF ADJUSTMENT. REFER TO METHOD OF ADJUSTMENT. REFER TO METHOD OF ADJUSTMENT. REFER TO METHOD OF ADJUSTMENT. REFER TO METHOD OF ADJUSTMENT. NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

Page No. Item

PC AD ADJUSTMENT

8 AUTO GAIN2 OFF

AUTO OFFSET2 OFF PCAD R GAIN 100 PCAD G GAIN 100 PCAD B GAIN 100 PC INPUT BLUE GAIN ADJUSTMENT REFER TO METHOD OF ADJUSTMENT. PCAD R OFFSET 56 PCAD G OFFSET 56 PCAD B OFFSET 56

RGTAR E6 GGTAR E6 BGTAR E6 RGCAL — GGCAL — BGCAL — ROCAL — GOCAL — BOCAL —

TABLE OF VARIOUS SETTINGS

9 I2C DATA 0

I2C DATA WAIT WRITE AND READ EXECUTED NOT USED SOUND DVP TUNER OTHERS

Initial

Value (Do not change other items than designated.)

AD9883 GAIN AUTO ADJUSTMENT OFF/RUN AD9883 OFFSET AUTO ADJUSTMENT OFF/RUN

PC INPUT RED GAIN ADJUSTMENT PC INPUT GREEN GAIN ADJUSTMENT

PC INPUT RED OFFSET ADJUSTMENT PC INPUT GREEN OFFSET ADJUSTMENT PC INPUT BLUE OFFSET ADJUSTMENT

PC INPUT RED GAIN ADJUSTMENT TARGET PC INPUT GREEN GAIN ADJUSTMENT TARGET PC INPUT BLUE GAIN ADJUSTMENT TARGET Y LEVEL, CHROMA CALCULATION DISPLAY Y LEVEL, CHROMA CALCULATION DISPLAY Y LEVEL, CHROMA CALCULATION DISPLAY CLAMP RANGE Y LEVEL, WHITE LEVEL CALCULATION DISPLAY CLAMP RANGE Y LEVEL, WHITE LEVEL CALCULATION DISPLAY CLAMP RANGE Y LEVEL, WHITE LEVEL CALCULATION DISPLAY

I2C BUS CONTROL IC DATA WRITE AND READ

—

SHIFT TO THE SOUND ADJUSTMENT PAGE

—

SHIFT TO THE DVP ADJUSTMENT PAGE

—

SHIFT TO THE TUNER ADJUSTMENT PAGE

—

SHIFT TO THE OTHER ADJUSTMENT PAGE

Function

Response precautions on servicing

REFER TO METHOD OF ADJUSTMENT. REFER TO METHOD OF ADJUSTMENT. REFER TO METHOD OF ADJUSTMENT. REFER TO METHOD OF ADJUSTMENT.

REFER TO METHOD OF ADJUSTMENT. REFER TO METHOD OF ADJUSTMENT.

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

MSP DATA 0 MSP DATA WAIT WRITE AND READ EXECUTED NOT USED CARRIER MUTE ON IGR THR 12D IGR THRESH LEVEL NOT USED

AUDIO ADJUSTMENT

SOUND2 PRESCALE SCART 27

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

AUDIO ADJUSTMENT

SOUND3 BAND1 MIN TV -0350

OTHER -0350

BAND1 CNT TV +0450

OTHER +0450

BABD1 MAX TV +1200

OTHER +1200

BAND2 MIN TV 0000

OTHER 0000

BAND2 CNT TV +0300

OTHER +0300

BABD2 MAX TV +0600

OTHER +0600

BAND3 TV -0150

OTHER -0150

Initial

Value (Do not change other items than designated.)

AUDIO IC MSP DATA WRITE AND READ

AUDIO OUTPUT SETTING WITHOUT TV SYNC

PRE-SCALE SETTING (EXTERNAL INPUT)

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

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

Response precautions on servicing

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

Page No. Item

AUDIO ADJUSTMENT

SOUND4 BAND4 MIN TV -0150

OTHER -0150

BAND4 CNT TV +0150

OTHER +0150

BAND4 MAX TV +0450

OTHER +0450

BAND5 MIN TV -0500

OTHER -0500

BAND5 CNT TV +0300

OTHER +0300

BAND5 MAX TV +1100

OTHER +1100

Initial

Value (Do not change other items than designated.)

Function

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

DVP ADJUSTMENT PROCESS ITEMS

Page No. Item

DVP1 DVP DATA 0000 F0 ------(----) —

DVP TEST PATTERN 0 TEST PATTERN SELECT VCDOFFSET 15 VCDWINDOW 30 READ TEMP ---.--°C —

DVP3 N358 TV CONT 144 N358 IMAGE SETTING (TV) NOT USED

N358 AV CONT 144 N358 TV BRIGHT 122 N358 BRIGHTNESS SETTING (TV) NOT USED N358 AV BRIGHT 122 N358 TV COLOR 52 N358 COLOR DENSITY SETTING (TV) NOT USED N358 AV COLOR 52 N358 TV TINT 138 N358 TINT SETTING (TV) NOT USED N358 AV TINT 138 N358 TV SHARP V 100 N358 AV SHARP V 100 N358 TV SHARP H1 200 N358 AV SHARP H1 200 N358 TV SHARP H2 150 N358 AV SHARP H2 160

DVP4 N443 AV CONT 144

N443 AV BRIGHT 122 N443 N443 AV COLOR 52 N443 AV TINT 138 N443 AV SHARP V 100 N443 AV SHARP H1 200 N443 AV SHARP H2 160

DVP5 PAL AV CONT 144

PAL AV BRIGHT 122 PAL AV COLOR 52 PAL AV TINT 138 PAL AV SHARP V 100 PAL AV SHARP H1 200 PAL AV SHARP H2 160

DVP6 SECAM AV CONT 144

SECAM AV BRIGHT 122 SECAM AV COLOR 52 SECAM AV TINT 138 SECAM AV SHARP V 100 SECAM AV SHARP H1 200 SECAM 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 TEMPERATURE DATA READING DISPLAY

N358 IMAGE SETTING (COMPOSITE, S VIDEO)

N358 BRIGHTNESS SETTING (COMPOSITE, S VIDEO)

N358 COLOR DENSITY SETTING (COMPOSITE, S VIDEO)

N358 TINT SETTING (COMPOSITE, S VIDEO) N358 V PICTURE QUALITY SETTING (TV) N358 V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) N358 H PICTURE QUALITY SETTING 1 (TV) N358 H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) N358 H PICTURE QUALITY SETTING 2 (TV) N358 H PICTURE QUALITY SETTING 2 (COMPOSITE, S VIDEO) N443 IMAGE SETTING (COMPOSITE, S VIDEO)

BRIGHTNESS SETTING (COMPOSITE, S VIDEO) N443 COLOR DENSITY SETTING (COMPOSITE, S VIDEO) N443 TINT SETTING (COMPOSITE, S VIDEO) N443 V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) N443 H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) N443 H PICTURE QUALITY SETTING 2 (COMPOSITE, S VIDEO) PAL IMAGE SETTING (COMPOSITE, S VIDEO) PAL BRIGHTNESS SETTING (COMPOSITE, S VIDEO) PAL COLOR DENSITY SETTING (COMPOSITE, S VIDEO) PAL TINT SETTING (COMPOSITE, S VIDEO) PAL V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) PAL H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) PAL H PICTURE QUALITY SETTING 2 (COMPOSITE, S VIDEO) SECAM IMAGE SETTING (COMPOSITE, S VIDEO) SECAM BRIGHTNESS SETTING (COMPOSITE, S VIDEO) SECAM COLOR DENSITY SETTING (COMPOSITE, S VIDEO) SECAM TINT SETTING (COMPOSITE, S VIDEO) SECAM V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) SECAM H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) SECAM H PICTURE QUALITY SETTING 2 (COMPOSITE, S VIDEO)

Function

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

Response precautions on servicing

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

Page No. Item

DVP7 PAL60 A V CONT 144

PAL60 AV BRIGHT 122 PAL60 AV COLOR 52 PAL60 AV TINT 138 PAL60 AV SHARP V 100 PAL60 AV SHARP H1 200 PAL60 AV SHARP H2 160

DVP8 PAL-M TV CONT 144 PAL-M IMAGE SETTING (TV) NOT USED

PAL-M AV CONT 144 PAL-M TV BRIGHT 122 PAL-M BRIGHTNESS SETTING (TV) NOT USED PAL-M AV BRIGHT 122 PAL-M TV COLOR 52 PAL-M AV COLOR 52 PAL-M TV TINT 138 PAL-M TINT SETTING (TV) NOT USED PAL-M AV TINT 138 PAL-M TV SHARP V 100 PAL-M AV SHARP V 100 PAL-M TV SHARP H1 200 PAL-M AV SHARP H1 200 PAL-M TV SHARP H2 150 PAL-M AV SHARP H2 160

DVP9 PAL-N TV CONT 144 PAL-N IMAGE SETTING (TV) NOT USED

PAL-N AV CONT 144 PAL-N TV BRIGHT 122 PAL-N BRIGHTNESS SETTING (TV) NOT USED PAL-N AV BRIGHT 122 PAL-N TV COLOR 52 PAL-N AV COLOR 52 PAL-N TV TINT 138 PAL-N TINT SETTING (TV) NOT USED PAL-N AV TINT 138 PAL-N TV SHARP V 100 PAL-N AV SHARP V 100 PAL-N TV SHARP H1 200 PAL-N AV SHARP H1 200 PAL-N TV SHARP H2 150 PAL-N AV SHARP H2 160

DVP10 525I CONT 144 525I IMAGE SETTING (TV) NOT USED

525I BRIGHT 122 525I BRIGHTNESS SETTING (TV) NOT USED 525I COLOR 78 525I TINT 146 525I TINT SETTING (TV) NOT USED 525I SHARP V 100 525I SHARP H1 160 525I SHARP H2 160 525P CONT 144 525P BRIGHT 122 525P COLOR 78 525P TINT 146 525P SHARP V 100 525P SHARP H1 120 525P SHARP H2 120

Initial

Value (Do not change other items than designated.)

PAL60 IMAGE SETTING (COMPOSITE, S VIDEO) PAL60 BRIGHTNESS SETTING (COMPOSITE, S VIDEO) PAL60 COLOR DENSITY SETTING (COMPOSITE, S VIDEO) PAL60 TINT SETTING (COMPOSITE, S VIDEO) PAL60 V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) PAL60 H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) PAL60 H PICTURE QUALITY SETTING 2 (COMPOSITE, S VIDEO)

PAL-M IMAGE SETTING (COMPOSITE, S VIDEO)

PAL-M BRIGHTNESS SETTING (COMPOSITE, S VIDEO) PAL-M COLOR DENSITY SETTING (TV) PAL-M COLOR DENSITY SETTING (COMPOSITE, S VIDEO)

PAL-M TINT SETTING (COMPOSITE, S VIDEO) PAL-M V PICTURE QUALITY SETTING (TV) PAL-M V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) PAL-M H PICTURE QUALITY SETTING 1 (TV) PAL-M H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) PAL-M H PICTURE QUALITY SETTING 2 (TV) PAL-M H PICTURE QUALITY SETTING 2 (COMPOSITE, S VIDEO)

PAL-N IMAGE SETTING (COMPOSITE, S VIDEO)

PAL-N BRIGHTNESS SETTING (COMPOSITE, S VIDEO) PAL-N COLOR DENSITY SETTING (TV) PAL-N COLOR DENSITY SETTING (COMPOSITE, S VIDEO)

PAL-N TINT SETTING (COMPOSITE, S VIDEO) PAL-N V PICTURE QUALITY SETTING (TV) PAL-N V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) PAL-N H PICTURE QUALITY SETTING 1 (TV) PAL-N H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) PAL-N H PICTURE QUALITY SETTING 2 (TV) PAL-N H PICTURE QUALITY SETTING 2 (COMPOSITE, S VIDEO)

525I COLOR DENSITY SETTING (TV)

525I V PICTURE QUALITY SETTING (TV) 525I H PICTURE QUALITY SETTING 1 (TV) 525I H PICTURE QUALITY SETTING 2 (TV) 525P IMAGE SETTING (COMPOSITE, S VIDEO) 525P BRIGHTNESS SETTING (COMPOSITE, S VIDEO) 525P COLOR DENSITY SETTING (COMPOSITE, S VIDEO) 525P TINT SETTING (COMPOSITE, S VIDEO) 525P V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) 525P H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) 525P 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

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

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

Page No. Item

DVP11 625I CONT 144 625I IMAGE SETTING (TV) NOT USED

625I BRIGHT 122 625I BRIGHTNESS SETTING (TV) NOT USED 625I COLOR 78 625I TINT 146 625I TINT SETTING (TV) NOT USED 625I SHARP V 100 625I SHARP H1 160 625I SHARP H2 160 625P CONT 144 625P IMAGE SETTING (TV) NOT USED 625P BRIGHT 122 625P BRIGHTNESS SETTING (TV) NOT USED 625P COLOR 78 625P TINT 146 625P TINT SETTING (TV) NOT USED 625P SHARP V 100 625P SHARP H1 120 625P SHARP H2 120

DVP12 1125I CONT 144 1125I IMAGE SETTING (TV) NOT USED

1125I BRIGHT 122 1125I BRIGHTNESS SETTING (TV) NOT USED 1125I COLOR 78 1125I TINT 146 1125I TINT SETTING (TV) NOT USED 1125I SHARP V 100 1125I SHARP H1 100 1125I SHARP H2 100 750P CONT 144 750P IMAGE SETTING (TV) NOT USED 750P BRIGHT 122 750P BRIGHTNESS SETTING (TV) NOT USED 750P COLOR 78 750P TINT 146 750P TINT SETTING (TV) NOT USED 750P SHARP V 100 750P SHARP H1 100 750P SHARP H2 100

Initial

Value (Do not change other items than designated.)

625I COLOR DENSITY SETTING (TV)

625I V PICTURE QUALITY SETTING (TV) 625I H PICTURE QUALITY SETTING 1 (TV) 625I H PICTURE QUALITY SETTING 2 (TV)

625P COLOR DENSITY SETTING (TV)

625P V PICTURE QUALITY SETTING (TV) 625P H PICTURE QUALITY SETTING 1 (TV) 625P H PICTURE QUALITY SETTING 2 (TV)

1125I COLOR DENSITY SETTING (TV)

1125I V PICTURE QUALITY SETTING (TV) 1125I H PICTURE QUALITY SETTING 1 (TV) 1125I H PICTURE QUALITY SETTING 2 (TV)

750P COLOR DENSITY SETTING (TV)

750P V PICTURE QUALITY SETTING (TV) 750P H PICTURE QUALITY SETTING 1 (TV) 750P H PICTURE QUALITY SETTING 2 (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

DEFAULT CHART OF ADJUSTMENT PROCESS TUNER ITEMS

Page No. Item

BASIC SETTINGS

TUNER1 AFT UP 1.80

AFT DOWN 1.20 LSYNC 150 HSYNC 162 LSYNC2 150 HSYNC2 162 AVSYNC 1 COMPSYNC 3 EDS TEST 10

TUNER2 AFT FARTIME 50

AFT NEARTIME 30 AFT NEARTIME 10 AFT 1STEPTIME 10 AFT CSYNCTIME 50 SYNC ON 10

SYNC WIDTH 1

Initial

Value (Do not change other items than designated.)

AFT VOLTAGE REFERENCE LEVEL (ALL BANDS) AFT VOLTAGE REFERENCE LEVEL (ALL BANDS) SYNC JUDGMENT THRESHOLD (TV) SYNC JUDGMENT THRESHOLD (TV) SYNC JUDGMENT THRESHOLD (FOR TV AFT CHANNEL (1-CH) SELECT) SYNC JUDGMENT THRESHOLD (FOR TV AFT CHANNEL (1-CH) SELECT) SYNC DETERMINATION THRESHOLD (EXTERNAL INPUT) SYNC JUDGMENT THRESHOLD (COLOR DIFFERENCE INPUT) DURATION UNTIL JUDGMENT OF NO EDS TIME DATA (SECONDS) CHANNEL PRESET TIME ADJUSTMENT 1 CHANNEL PRESET TIME ADJUSTMENT 2 CHANNEL PRESET TIME ADJUSTMENT 3 CHANNEL PRESET TIME ADJUSTMENT 4 CHANNEL PRESET TIME ADJUSTMENT 5 CHANNEL PRESET SYNC JUDGMENT, CONTINUOUS MATCHING TIMES(CH SEARCH, AIR/CABLE JUDGMENT, CLOCK SYNC JUDGMENT) CHANNEL PRESET SYNC JUDGMENT, THRESHOLD (SYNC PROVIDED JUST AFTER THE MAXIMUM-TOMINIMUM DIFFERENCE COMES SMALLER)

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

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

DEFAULT CHART OF OTHER ADJUSTMENT PROCESS ITEMS

Page No. Item

OTHERS

OTHERS1 DAC DATA —

L ERROR WAIT 15s L ERROR H TIME 1.0s LAMP ERROR DETECT TIME NOT USED TV AUTO GAIN OFF AUTO GAIN SETTING FOR TV NOT USED PWM FREQ 150 PWM DUTY 0 DIMMER DUTY SETTING NOT USED OPC THRESHOLD 24

HOTEL POWERFIX OFF COMP SYSTEM AUTO REMOCON CODE DISPLAYED AT THE BOTTOM

OTHERS

OTHERS2 CLOSED CAPTION 15 CLOSED CAPTION THRESH LEVEL NOT USED

AUTO CLOCK DISPLAYED ON THE 2ND, 3RD AND 4TH LINES FROM BOTTOM FOR US-DESTINED MODELS

Initial

Value (Do not change other items than designated.)

DAC-RELATED GENERAL-PURPOSE VARIABLE SETTINGS LAMP ERROR DETECT WAIT TIME

DIMMER FREQUENCY SETTING (IN HZ)

INPUT LEVEL THRESHOLD FROM BRIGHTNESS SENSOR STOP MODE TO OPERATION MODE USED FOR FIXED HOTEL MODE POWER ON COMPONENT SIGNAL SELECT IN ADJUSTMENT PROCESS

Function

NOT USED NOT USED

NOT USED

NOT USED NOT USED

Response precautions on servicing

PUBLIC MODE SETTING PROCEDURE

1. How to start Public Mode

» There are the following two ways to get the public mode setup screen displayed.

1 1) Press the "INPUT" and "VOL (+)" keys on the set at once and turn on the power.

2) Get the password input screen displayed.

Procedure

» The input starts with the leftmost digit. » Use the numeric keys [1] thru [9] and [10/0] keys on the remote con-

troller. The other keys are not acceptable.

» With a numeric-key input, "–" will change to " ". The input position

will move one digit to the right.

» With all the 3 digits entered, the password will be verified.

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

3) The 3-digit password is now verified. The password [0] [2] [7] provides for the public mode screen. (This screen comes on with whatever adjustment process settings.) With any other passwords, the screen changes to the normal mode.

2 In the adjustment process mode, turn on "PUBLIC MODE". Also press the "CH ( ù)" and "VOL (+)" keys on

the set at once and turn on the power.

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

2. How to exit Public Mode

There are the following ways to quit the public mode setup screen. » Turn off "PUBLIC MODE" in the adjustment process mode. (✩) ← This way alone is not for quitting the setup

screen, but for quitting the mode itself.

» Turn off the power with the "POWER" key. (★) » Select "ENTER". (★) » Move the cursor to "RESET" and press the "FLASHBACK" key. (Back to the normal mode screen)(✩)

★ ... "PUBLIC MODE" stays on in the adjustment process mode. ✩ ... The settings will be back to the factory ones.

3. Public Mode Setting Values

» With the factory settings made, the public mode settings get initialized. (The adjustment process remains intact.)

4. Public Mode Menu

The guidance is not displayed onscreen. Setup procedure

» To move the cursor up and down, use the "cursor UP/DOWN" key (remote controller) and "CH (ù)/(Ù)" key

(remote controller and set).

» To change the settings, use the "cursor RIGHT/LEFT" key (remote controller) and "VOL (+)/(–)" key (remote

controller and set).

» To save new settings, keep the cursor at "Enter" and use the "cursor RIGHT/LEFT" key (remote controller) and

"VOL (+)/(–)" key (remote controller and set).

Public mode Maximum volume [ 60 ] Volume fixed [Variable ] Volume fixed level [ 20 ] RC button [Respond ] Panel button [Respond ] Menu button [Respond ] On screen display [Yes ] Input mode start [Normal ] Input mode fixed [Variable ] Reset Enter

5. On Setting Items

* "EZ-SETUP" discussed below indicates "EZ-SETUP after the first power-on". (1) MAXIMUM VOLUME

Selection Default Explanation Limit in Setting

Exception

Remarks

(2) VOLUME FIXED

Selection Default Explanation Limit in Setting

Exception

Remarks

Adjustment from 1 to 60 (no loop) 60 Sound volume can not be adjusted higher than the preset value.

» When the sound volume is set lower than 59, only figures are displayed and the sound volume bar is not

displayed.

» The maximum sound volume for ON-timer (Wake up timer) is limited also to the preset value. » In the item "VOLUME" of adjustment process, the sound volume can be set freely irrespective of this

setting.

» Setting is valid only for the speakers of the unit. (As for the headphone, the sound volume can be set up

to 60 irrespective of the limit.)

» In line output (sound volume variable), the sound volume can be adjusted from -60 to 0 irrespective of

pre-adjusted value.

» When the sound volume is set higher than the MAX setting by the adjusting process or headphone, the

sound volume control operation is prohibited for turn-up and the sound volume should be turned down to MAX in this state.

Selection between

"Variable" and "Fixed" (loop provided)

Variable Sound volume is fixed and made invariable.

» The sound volume for the ON-timer (Wake up timer) is fixed also without display of menu. Besides, the

setting is made impossible. (Basically, the menu is not displayed.)

» The following keys become invalid:

» Sound volume Up/Down (VOL +/-) [for both remote control and the unit] » Mute (MUTE)

» In the item "VOLUME" of adjustment process, the sound volume can be set freely irrespective of this

setting.

» In "Variable" setting, the sound volume had been conventionally set at 1 but this operation has been

abolished (and follows the last memory).

» The sound volume for the ON-time is not set at 1 either and the sound volume set value of the ON-timer

before executing the hotel mode is held.

» Setting is valid only for the speakers of the unit. (As for the headphone, the sound volume can be set up

to 60 irrespective of the limit.)

» In line output (sound volume variable), the sound volume can be adjusted from -60 to 0 irrespective of

pre-adjusted value.

» As for sound volume fixing and sound volume MAX level, the sound volume fixing has priority. » Once the sound volume has been changed by adjustment process or headphone, it should be set back to

the sound volume preset by sound volume fixing level when the adjustment process ends or when the headphone is removed.

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

(3) VOLUME FIXED LEVEL

Selection Default Explanation Limit in Setting Exception Remarks

Adjustment from 1 to 60 (no loop) 20 The sound volume to be fixed by None None Setting is valid only when This must be confirmed actually by changing also the sound volume in accordance with setting.

(4) R/C BUTTON

Selection Default Explanation Limit in Setting

Exception

Remarks

Selection between Respond Keys acceptable by remote control are limited or reception of keys can be prohibited. 1In sensor) are accepted.

2In

» Adjustment process, factory setting, inspection process and hotel only keys are valid irrespective of set-

» All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting. » All the keys can be used also in the initial EZ-Setup after power-ON irrespective of setting.

"Volume fixed" is determined.

"Volume fixed" is selected for "fixed".

"Respond" , "Limited" and "No respond" (loop provide)

"limited" setting, only power ON/OFF, sound volume '", tuning '" and BACKLIGHT (brightness "No respond" setting, all the keys (including the power key) are not accepted.

ting.

(5) PANEL BUTTON

Selection Default Explanation Limit in Setting Exception

Remarks

Selection between Respond All the operations by keys (except the power key) of the unit can be invalidated.

» Inspection mode and hotel menu mode can be started irrespective of setting. » All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting. » In U.S.A model, all the keys can be used also in the initial EZ-Setup after power-ON irrespective of

setting.

(6) MENU BUTTON

Selection Default Explanation

Limit in Setting

Exception

Remarks

Selection between Respond In unit are invalidated.

» ON-timer (Wakeup Timer) is turned OFF. » The following keys become invalid.

Wake-up timer and clock setting keys and all of the direct change keys to menu display

» Inspection mode and hotel menu mode can be started irrespective of setting. » All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting. » All the keys can be used also in the initial EZ-Setup after power-ON irrespective of setting.

"Respond" and "No respond" (loop provide)

"No respond" setting, the menu operation by the menu key of the remote control and the menu key of the

(7) ON SCREEN DISPLAY

Selection Default Explanation

Limit in Setting

Others

Exception

Remarks

Selection between "Yes" , "Limited" (loop provide) Yes The following OSD displays are made ineffective. Displays of menu group, channel call, sound volume bar and direct key call

» ON-timer (Wake-up timer) is cleared and set to "OFF". » Set time of the OFF-timer (SLEEP TIMER) is cleared. » Setting of the no-signal power-OFF (AUTO POWER OFF) is cleared to "OFF". » Setting of the no-operation power-OFF is cleared to "OFF". » Keys falling under any of the following items become invalid.

1Appearance of screen changes and the sound changes. 2Personal functions which are hard to restore.

Ex.) Screen display, menu, OFF-timer, ON-timer, AV MODE, screen size switching, clock setting, treble emphasis, AUDIO ONLY, sound changeover, LANGUAGE, CLOSED CAPTION

» Simple input switching is generated. Those which are restored soon after leaving as they are and may be

requested for change by customer are not prohibited. Ex.) Brightness sensor (BACKLIGHT) and PIC. FLIP

» Such a caution which is displayed independently is displayed as it is.

Non-responding signal caution, V-Chip caution and power-ON fixing caution

» In "No" setting, the setting of "SOUND ONLY MODE" is changed to "OFF" and selecting operation is

made prohibited.

» When CC has already been ON, CLOSED CAPTION is displayed.

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

(8) INPUT MODE START

Selection Default Explanation

About options

Limit in Setting Exception Remarks

Selection between Normal In power-ON, the input source to be started or channel can be set. (In standard mode, the operation follows the last memory.)

» All the input sources in the model are made selectable. » When the input/output switchable input source is selected and the input source is set to output, the setting

of input/output switching is changed to input at the execution of hotel menu. In addition, the input/output switching by menu is prohibited.

» In TV mode, the display of all channels is stopped and it is treated as an input source. At this time, the

channel to be set follows the last memory and the content of the last memory is included in the notation by options. Ex.) TV (CH2), TV (CH4) etc.

» The order of appearance of options in the hotel menu should agree with the order of toggles by input

switching key.

» The display of channel setting menu and the channel setting operation are prohibited (except for MCL). » In the start by "ON-timer (Wake-up timer)", the channel set by ON-timer (Wake-up timer) has priority. » In setting at "Normal", the setting of "Input mode fixed" is changed to "Variable" and selection should be

prohibited.

"Normal" , "TV (CH~)" "COMPONENT" "AV1" and "AV2" (loop provide)

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

(9) INPUT MODE FIXED

Selection Default Explanation

Limit in Setting

Exception Remarks

Selection between

"Variable" and "Fixed" (loop provide)

– (Variable) The input mode is fixed at the input source or the channel set at the

"Input mode start" in 9 and other input

sources and channels can be made non-selectable.

» With the execution of hotel mode, the input source is forced to change to that set by "Input mode start"

and the channel switching and input switching are prohibited thereafter.

» ON-timer's (Wake-up timer) channel items are not displayed or the operation is prohibited. (Basically, they

are not displayed.)

» The following keys are invalidated.

CH '", direct tuning button, FLASHBACK, input ~However, the keys (input switching and CH '" keys) of the unit for menu operation remain valid.

None

» In the following case, setting is cancelled and mode is changed to "Variable".

1When the setting of

"Input mode start" is set to "Standard (Normal)"

TROUBLE SHOOTING TABLE

No or Wrong Picture

Are the waveforms at

pins (84), (89) and (90)

of IC801 as specified?

Check IC801 and its

peripheral circuits as

well as the LCD panel

voltage and waveform.

Check the related lines,

IC801 itself and its

peripheral circuits.

Are the waveforms at the signal

input pins of IC801 as specified?

TV/Composite … Pin (40)

S Video … Pins (42) and (31)

Component … Pins (21), (33) and

(44)

Check the IC801 signal

input line.

Check IC801 and its

peripheral circuits.

Yes

Does the IC801 test pattern appear

properly?

No Power (Power LED indicator still in red)

Go to the adjustment process mode.

Move the cursor to ERROR NO RESET

and click on it (to reset to zero).

Turn off the power.

Is the power turned on again?

MODEL A628

INCH SIZE 20

ERROR NO RESET 0

PUBLIC MODE OFF

V-CHIP 1

EXT CONTROL OFF

VER ROM

A GAIBU

***

Note:

This model is equipped with the lamp error detection function that detects the current

flowing into the fluorescent lamp and protects the backlight lamp drive circuit.

If a lamp error is detected, the microprocessor interrupts the unit and the ERROR NO

RESET setting will go up.

When the ERROR NO RESET setting has reached "5", the microprocessor turns and

keeps off the unit's power. To resume the power, take the above procedure to clear the

ERROR NO RESET setting.

Check the following points.

(1) Backlight lamp

(2) Inverter circuit Sub PWB F6701, Q6719, Q6720, Q6721, Q6722, Q6723,

Q6724 and their peripheral parts as well as pins (187) of IC801, Q7752

(3) Lamp error detection circuit Q6703, Q6704, IC6701 and their peripheral parts

as well as pin (42) of IC2001

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

LC-20B8U-S

Check the secondary

load of T7001.

Is pin (10) of IC7002

and IC7001 at "H"?

Check the load of

IC7002 and IC7001 and

its peripheral circuits.

Is the primary

oscillation wave of

T7001 as specified?

Are the secondary

outputs of T7001 +5V, -

12V, +35V and +9V?

Is there DC 12V input at

T7001 and pin (8) of

IC7301?

Is the output voltage of

IC7002 and IC7001 as

specified?

Check the load of IC701

thru IC703.

Check T7701, IC7701

and their peripheral

circuits.

Check the primary side

of T7001, IC7301 and

its peripheral circuits.

Disconnect F7701. Is

the load short-circuited?

Is pin (187) of IC801 at

"H" or pulse?

Check the line in

question, IC801 and its

peripheral circuits.

Check the primary side

of T7001, Q7001 and

its peripheral circuits.

Check pin (72) of

IC2001, pin (12) of

SC2004 and pin (12)

of P7702.

No video and audio output (no power) No fluorescent lamp light-up

No No

Are Q6719-Q6724 free

from short-circuit?

Check Q6719-Q6724 and

their peripheral part.

Are F7701 as specified?

Replace F7701.

Is F6701 normal?

Replace F6701.

Yes

Replace and check the

fluorescent lamp.

Yes

Is the oscillation

waveform of the primary

side of T6701-T6712

normal?

Check the peripheral

parts of Q6719-Q6724

and the connecting cable.

Yes

Yes Yes

Check the microprocessor's adjustment process menu for wrong settings.

LC-20B9U-S LC-20B9U-SM

TROUBLE SHOOTING TABLE (Continued)

No pictures come out (1/2).

All pictures do not come out.

No TV pictures come out.

No Input 3 pictures come out. No Input 4 pictures come out.

Check if the adjustment process menu of the microcomputer is set properly.

No No No No No

Yes

No S video pictures come out.

Yes

No Input 2 pictures come out.

Yes

No pictures come out (2/2).

No PC pictures come out.

Yes

Does the

test pattern

of the LCD

controller

come out?

Are the

input and

output of

IC801 as

specified?

No TV, Input 3 or Input 4

pictures come out.

Check

IC801 and

its

peripheral

circuitry.

Is the input

at pin (40)

of IC801

specified?

Check the

IC801 VIDEO

line and its

peripheral

parts.

Is the output

at pin (19) of

the tuner as

specified?

Are the

input and

output of

IC3401 as

specified?

Check

IC3401 and

its peripheral

parts.

Check the

power supply

line.

Check the

line in

question.

Check

IC3401 and

its peripheral

parts.

Check the

tuner and its

peripheral

parts.

Check the line

in question.

Check

IC3401 and

its peripheral

parts.

Are the

voltages at

pins (6), (7)

and (9) of the

tuner as

specified?

Is the input

at pin (47)

of IC3401

specified?

Is the

output at

pin (43) of

IC3401 as

specified?

Check the

line in

question.

Is the

output at

pin (43) of

IC3401 as

specified?

Is the input

at pin (1) of

IC3401 as

specified?

Check the

line in

question.

Check

IC3401 and

its peripheral

parts.

Is the input

at pin (8) of

IC3401 as

specified?

Is the

output at

pin (43) of

IC3401 as

specified?

Yes Yes

Yes

Is the input

at pin (40)

of IC801 as

specified?

Is the input

at pin (40)

of IC801 as

specified?

Check

IC801 and

its input

line and

peripheral

parts.

Check

IC801 and

its input

line and

peripheral

parts.

Check

IC801 and

its input

line and

peripheral

parts.

Are the inputs at pins

(3), (6) and (10) of

IC403 as specified?

Is the voltage at pin (16)

of IC403 as specified?

Are the outputs at pins

(4), (7) and (9) of IC403

as specified?

Are the inputs at pins

(43), (48) and (54) of

IC8701 as specified?

Is the output of IC8701

as specified?

Is the input of IC801 as

specified?

Yes

Check the output of IC801,

the input and output of

IC1201 and their

peripheral parts.

Are the

inputs at pins

(3) and (5) of

IC3401 as

specified?

Check the

SY line, SC

line and

peripheral

parts of

J3401.

Check the

lines and

peripheral

parts of

J3410.

Check

J3401 and

its

peripheral

parts.

Are the

outputs at

pins (43)

and (45) of

IC3401 as

specified?

Are the

inputs at

pins (31)

and (40) of

IC801 as

specified?

Are the

inputs at

pins (3),

(7) and

(27) of

IC3403 as

specified?

No Input 1 pictures come out.

Yes

Check the

lines and

peripheral

parts of

J3410.

Are the

inputs at

pins (1), (5)

and (25) of

IC3403 as

specified?

Check

IC3403 and

its

peripheral

parts.

Are the

outputs at

pins (11),

(14) and (17)

of IC3403 as

specified?

Check the input line

and its peripheral

parts.

Check Q401, Q402

and Q403.

Check the power

supply line.

Check the line in

question.

Check IC8701 and

its peripheral parts.

Check IC801 and

its peripheral parts.

Yes

Check the input line

and its peripheral

parts.

Check IC8701 and

its peripheral parts.

Check IC801 and its

peripheral parts.

Yes

Is the output of IC8701

as specified?

Are the inputs at pins (5),

(13) and (20) of IC8701 as

specified?

Is the input of IC801 as

specified?

Check the output of IC801,

the input and output of

IC1201 and their

peripheral parts.

Check if the adjustment process menu of the microcomputer

is set properly.

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

TROUBLE SHOOTING TABLE (Continued)

LC-20B8U-S

No sounds come out.

No sounds come out from the speakers.

Yes

No sounds come out from the monitor output.

Is pin (58) of IC2001 at "L"?

Is the signal of the collector of Q3403 at "L"?

Check the peripheral parts of IC3201.

Yes

Perform checking from Q3403 to pin

(58) of IC2001.

Perform the following checking.

1No TV sounds come out: Check the

peripheral parts of Q3203, Q3204 and

the peripheral parts of TU3401.

2No input 3 sounds come out: Perform

checking from J3403 to pins (2) and (4)

of IC3401.

3No input 4 sounds come out: Perform

checking from J3403 to pins (9) and

(11) of IC3401.

4No input 1 input sounds come out:

Perform checking from J3405 to pins

(46) and (48) of IC3401.

5No input 2 sounds come out: Perform

checking from J3405 to pins (22) and

(24) of IC3401.

6No PC input sounds come out: Perform

checking from J3409 to pins (47) and

(48) of IC3201.

Check Q3403, Q3401 and Q3402.

Yes

Check the input line and its

peripheral parts.

Is pin (43) of IC2001 at "L"?

Yes

Perform checking from Q3413 to

pin (43) of IC2001.

Yes

Check J3403 and its peripheral parts.

Yes

Check the peripheral parts of IC3404.

Do all the input modes (TV, Input 1~4) fail to

produce sounds?

Perform the following checking.

Is the monitor output set to "Sound Fixed" or

"Sound Variable"?

Is the sound volume level sufficient?

Is the muting effect turned off?

Are the headphones disconnected?

Do the following.

Set the monitor output to "Sound

Fixed".

Raise the sound volume level.

Turn off the muting effect.

Disconnect the headphones.

Perform the following checking.

Do sounds come out from the speakers?

Is the monitor output connected properly?

Is the muting effect turned off?

Is the audio signal outputted from pins (36) (Rch)

and (37) (Lch) of IC3201?

Do the following.

Perform checking according to the

steps under "No sounds come out

from the speakers".

Connect the monitor output

properly.

Turn off the muting effect.

Are the inputs at pins (2) and (12) of IC3404 as

specified?

Are the outputs at pins (14) and (15) of IC3404 as

specified?

Yes

Is pin (53) of IC2001 at

“L”?

Muting effect is on. Check the SP

MUTE line.

Are input and output of IC3201 as specified?

Check IC3201 and its peripheral

parts.

Are inputs at pins (2) and (4) as well as outputs

at pins (8) and (12), all of IC3304, as specified?

Check the speakers and their peripheral parts.

Check the line in question, IC3304 and

its peripheral parts.

LC-20B9U-S LC-20B9U-SM

TROUBLE SHOOTING TABLE (Continued)

Yes

No colors come out.

No S video colors come out.

No input 1, input 2 colors come out.

No PC picture colors come out.

Check if the adjustment process menu of the microcomputer is set properly.

Check IC1201,

its peripheral

circuitry and the

LCD panel.

Does the test

pattern of the

LCD controller

come out

properly?

Check IC801 and

its peripheral

circuits.

Check the SC

line of J3401

and its

peripheral

parts.

Is the input at

pin (5) of

IC3401 as

specified?

Check IC3401

and its

peripheral

parts.

Is the output at pin

(45) of IC3401 as

specified?

Check the lines

of J3410 and

their peripheral

parts.

Is the input of

IC3403 as

specified?

Check IC3403

and its

peripheral parts.

Are the outputs at

pins (11) and (14) of

IC3403 as specified?

Check the input

line and its

peripheral

parts.

Is the input at pin

(31) of IC801 as

specified?

Check the output of

IC801, the input

and output of

IC1201 and their

peripheral parts.

Check the input

line and its

peripheral

parts.

Check IC8701

and its

peripheral

parts.

Check

IC8701

and its

peripheral

parts.

Check the

input line

and its

peripheral

parts.

Are the

inputs and

outputs of

IC8701 as

specified?

Is the input

of IC801 as

specified?

Check the

output of

IC801, the

input and

output of

IC1201 and

their

peripheral

parts.

Are the inputs at

pins (8), (17)

and (23) of

IC8701 as

specified?

Is the output of

IC8701 as

specified?

Check IC801

and its

peripheral

parts.

Is the input of

IC801 as

specified?

Check the output of

IC801, the input

and output of

IC1201 and their

peripheral parts.

No TV colors

come out.

No input 3,

input 4 colors

come out.

TROUBLE SHOOTING TABLE (Continued)

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAJOR IC INFORMATION

1. IC2001 (RH-iXA628WJN1Q), (RH-iXA628WJZZQ) 1-1.Pin Connections

P1_0/D8

P1_1/D8

P1_2/D10

P1_3/D11

P1_4/D12

P1_5/D13/INT3

P1_6/D17/INT4

P1_7/D15/INT5

P2_0/AN2_0A0(/D0/)

P2_1/AN2_1A1(/D1/D0)

P2_2/AN2_2A2(/D2/D1)

P2_3/AN2_3A3(/D3/D2)

P2_4/AN2_4A4(/D4/D3)

P2_5/AN2_5A5(/D5/D4)

P2_6/AN2_6A6(/D6/D5)

P2_7/AN2_7A7(/D7/D6)

VSS

P3_0/A8(/_/D7)

VCC2

P3_1/A9

P3_2/A10

P3_3/A11

P3_4/A12

P3_5/A13

P3_6/A14

P3_7/A15

P3_0/A16

P3_1/A17

P3_2/A18

P3_3/A19

P0_7/AN0_7/D7 P0_6/AN0_6/D6 P0_5/AN0_5/D5 P0_4/AN0_4/D4 P0_3/AN0_3/D3 P0_2/AN0_2/D2 P0_1/AN0_1/D1 P0_0/AN0_0/D0

P10_7/AN7/KI3 P10_6/AN6/KI2 P10_5/AN5/KI1 P10_4/AN4/KI0

P10_3/AN3 P10_2/AN2 P10_1/AN1

VSS

P10_0/AN0

VREF

AVCC

P9_7/ADTRG/SIN4

80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 81 82

83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

100

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 27 28 29 30

P9_4/DA1/TB4IN

P9_3/DA0/TB3IN

P9_5/ANEX0/CLK4

P9_6/ANEX1/SOUT4

P9_2/TB2IN/SOUT3

RH-IXA628WJN1Q RH-IXA628WJZZQ

XIN

BYTE

CNVSS

P8_7/XCIN

P9_1/TB1IN/SIN3

P9_0/TB0IN/CLK3

P8_XCOUT

XOUT

RESET

VSS

VCC1

P8_5/NMI

P8_3/INT1

P8_INT2/ZP

P8_2/INT0

P8_1/TA4IN

P8_0/TA4OUT/U

P7_7/TA3IN

P7_5/TA2IN/

P7_6/TA3OUT

P7_4/TA2OUT/W

P7_3/CTS2/RTS2/TA1IN/

P4_4/CS0

P4_5/CS1

P4_6/CS2

P4_7/CS3

P5_0/WRL/WR

P5_1/WRH/BHE

P5_2/RD

P5_3/BCLK

P5_4/HLDA

P5_5/HOLD

P5_6/ALE

P5_7/RDY/CLKOUT

P6_0/CTS0/RTS0

P6_1/CLK0

P6_2/RXD0/SCL0

P6_3/TXD0/SDA0

P6_4/CTS1/RTS1/CTS0/CLKS1

P6_5/CLK1

P6_6/RXD1/SCL1

P6_7/TXD1/SDA1

Note

P7_2/ACLK2/TA1OUT/V

Note 1: N channel open drain outputs

Pin Connections (Top View)

P7_0/TXD2/SDA2/TA0OUT(

P7_1/RXD2/SCL2/TA0INTB5IN(

1-2. Pin Functions

Pin No. Pin Name I/O Pin Name Function

1 P96/ANEX1/Sout4 O 2 P95/ANEX0/CLK4 O 3 P94/DA1/TB4in I PC-H PC signal HS frequency judgment 4 P93/DA0/TB3in I D_FIL Component filter switching DA

(No function) 5 P92/TB2in/Sout3 I PC-V PC signal VS frequency judgment 6 P91/TB1in/Sin3 I CSYNC Composite sync signal 7 P90/TB0in/CLK3 I IREM1 Remote control signal 8 BYTE I BYTE Connected to GND 9 CNVss I CNVss Connected to GND (connected to Vcc1 for CNVSS at flash write)

10 P87/Xcin I Xcin 32kHz quartz oscillator (for clock count)

O P87 (No function)

11 P86/Xcout O Xcout 32kHz quartz oscillator (for clock count)

O P86 (No function) 12 RESET I RESET Microprocessor reset at "L" 13 Xout O Xout System clock output 14 Vss I Vss GND 15 Xin I Xin System clock input 16 Vcc1 I Vcc1 VDD (+3.3V) 17 P85/NMI I NMI (Connected to Vcc1 for NMI at flash write) 18 P84/INT2 O 19 P83/INT1 I PSWin Main power monitor 20 P82/INT0 I VSYNC VSYNC signal input 21 P81/TA4in O RS_POWER RS, DS control 22 P80/TA4out O AC_Ctrl AC adaptor power consumption control 23 P77/TA3in O DAC1CS Gradation control IC chip select 24 P76/TA3out O 25 P75/TA2in O 26 P74/TA2out O 27

P73/CTS2_/RTS2_/TA1in 28 P72/CLK2/TA1out I/O SCL2 Serial clock line 2 for I2C bus 2 system (EEPROM, AV SW(J), BS TUNER) 29

P71/RxD2/SCL2/TA0in/TB5in 30

P70/TxD2/SDA2/TA0out 31 P67/TxD1/SDA1 O TxD (TxD at flash write) 32 P66/RxD1/SCL1 O RxD (RxD at flash write) 33 P65/CLK1 O SCLK (Clock input at flash write) 34

P64/CTS1/RTS1/CTS0/CLKS1 35 P63/TxD0/SDA0 O MPWEL Data signal input for DVP 4-line serial (MPWEL) 36 P62/RxD0/SCL0 I MPOE Data output signal for DVP 4-line serial (MPOE) 37 P61/CLK0 O MPWEH Clock for DVP 4-line serial (MPWEH) 38 P60/CTS0/RTS0 O 39 P57/RDY/CLKout O MAINSW LED power control 40 P56/ALE O 41 P55/HOLD I POWin(EPM) DC/DC start detect (connected to Vss for EPM at flash write) 42 P54/HLDA I(O) L_ERR Fluorescent lamp error detect 43 P53/BCLK O S IN/OUT Audio input/output select 44 P52/RD O COMP AV selector switch 45 P51/WRH/BHE O TIMER(RLED) On timer LED control (power RLED control for overseas destinations) 46 P50/WRL/WR I MRDY(CE) I2C bus open connection detect (connected to Vcc2 for CE at flash write) 47 P47/CS3 O LEDPOW(GLED) Power LED control (common with sub-power control in Japan)

I/O SDA2 Serial data line 2 for I2C bus 2 system

I/O SCL1 Serial clock line 1 for I2C bus 2 system (others, AV SW(not J)) I/O SDA1 Serial data line 1 for I2C bus 2 system

O BUSY (Busy output at flash write)

(power GLED control for overseas destinations

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

Pin No. Pin Name I/O Pin Name Function

48 P46/CS2 O 49 P45/CS1 O S_SEL AV selector switch 50 P44/CS0 O VSHOUT Panel gate driver voltage control 51 P43/A19 O 52 P42/A18 O HP MUTE Headphones mute (at "H") 53 P41/A17 O SP MUTE1 Main speaker mute 54 P40/A16 O 55 P37/A15 I HP DET Headphones detect 56 P36/A14 O SSTBY Amplifier power control (1-bit-dropout models) 57 P35/A13 I VSH IN Panel gate driver voltage confirm 58 P34/A12 O LMUTE Line out audio mute 59 P33/A11 O V IN/OUT Video input/output select 60 P32/A10 O SRESET Audio IC reset output 61 P31/A9 O 62 Vcc2 I Vcc2 Power input 63 P30/A8 O TCON_OUT_CTL DVP control output control 64 Vss I Vss GND 65 P27/AN27/A7 O V_SEL AV selector switch 66 P26/AN26/A6 O TV_SEL AV selector switch 67 P25/AN25/A5 O 68 P24/AN24/A4 O MPCE DVP 4-line serial chip enable (MPCE)/DVP slave address select 69 P23/AN23/A3 O OPCLED OPC LED light-up 70 P22/AN22/A2 O INV_POW 71 P21/AN21/A1 O VGH Panel power control 72 P20/AN20/A0 O POWout DC/DC control output 73 P17/D15/INT5 I ADPPOW Adaptor ON/OFF input 74 P16/D14/INT4 O DACOUTCON Gradation control IC output control (gradation IC) 75 P15/D13/INT3 O MP_RCS Temperature sensor chip select 76 P14/D12 I/O MP_RDA Temperature sensor data input 77 P13/D11 O 78 P12/D10 O MP_DA Gradation control IC data output 79 P11/D9 O MP_CLK Temperature sensor or gradation control IC clock output 80 P10/D8 O DDC_RESET Video IC reset output (Renesas DVP, 3D YC) 81 P07/AN07/D7 I KEY4 Key input 4 82 P06/AN06/D6 I KEY5 Key input 5 83 P05/AN05/D5 O VLS Panel & gradation IC power control 84 P04/AN04/D4 O 85 P03/AN03/D3 O 86 P02/AN02/D2 O SHORT_DET Over-current protection detect 87 P01/AN01/D1 I INCH2 Screen size ID port 2 88 P00/AN00/D0 I INCH1 Screen size ID port 1 89 P107/AN7/KI3 I AFT AFT voltage input 90 P106/AN6/KI2 —

91 P105/AN5/KI1 I KEY1 Key input 1 92 P104/AN4/KI0 I KEY2 Key input 2 93 P103/AN3 O 94 P102/AN2 I OPC_IN OPC sensor level input 95 P101/AN1 O 96 AVss I AVss Connected to GND 97 P100/AN0 O 98 VREF I VREF Connected to +3.3V 99 AVcc I AVcc Connected to +3.3V

100 P97/ADtrg/Sin4 O

BUS SELECT H(I2C)

DVP I2C/4-line communication system select (H: I2C control, L: Serial control)

Separately-excited inverter power control (with separately-excited-type models only)

2. IC801(RH-iXB170WJZZQ) 2-1. Pin Connections

216

215

214

213

212

211

210

DGND

PXD21

PXD17

PXD23

PXD20

PXD22

DVDD1.8

1 D VDD3.3 2 P XD24

3 P XD25 4 P XD26 5 P XD27 6 VDIN 7 H DIN/FBIN

8 D VDD3.3 9 DGND

10 V RPD 11 V ROD 12 V RMD 13 V RND 14 A VDDD2 15 A VSSD2 16 A VDDD1 17 A VSSD1 18 V RPC 19 V ROC 20 V RMC 21 VINC 22 A VDDC2 23 A VSSC2 24 A VDDC1 25 A VSSC1 26 D VDD 27 D VSS 28 V RPB 29 V ROB 30 V RMB 31 V IM1B 32 A VDDB2 33 V IM2B 34 A VSSB2 35 A VDB1 36 A VSSB1 37 V RPA 38 V ROA 39 V RMA 40 V IM1A 41 A VDDA2 42 V IN2A 43 A VSSA2 44 V IN3A 45 A VDDA1 46 A VSSA1 47 S VSS 48 D VDD3.3 49 D GND 50 R ESET

51 Q OECTL 52 SDA 53 SCL 54 D VDD3.3

209

208

PXD15

PXD16

207

206

PXD14

DVDDSD

205

204

PXD12

PXD13

203

202

201

200

199

198

197

196

195

194

193

192

191

190

189

PXD11

PXD10

PXD06

PXD07

DGND

DVDD3.3

DVDD1.8

PXD04

PXD05

PXD02

PXD03

PXD01

PXD00

PXCLK

DVDDSD

RH-IXB170WJZZQ

188

187

DGND

QBLCD

186

185

QBLCB

QBLCC

184

183

QBLCA

TSTCLK

182

QRR7

181

QRR6

180

QRR5

179

QRR4

178

177

176

DGND

DVDD1.8

DVDD3.3

175

QRR3

174

QRR2

173

QRR1

172

171

170

DGND

DVDDSD

DVDD3.3

169

QRR0

168

QBR7

167

QBR6

166

QBR5

165

QBR4

164

163

DGND

DVDD1.8

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

DVDD3.3

162 161

QBR3

160

QBR2

159

QBR1

158

QBR0

157

DGND

156

DVDD3.3

155

QGR7

154

QGR6

153

QGR5

152

QGR4

151

QGR3

150

QGR2

149

DVDD3.3

148

DGND

147

DVDD1.8

146

QGR1

145

QGR0

144

QCLKR

143

QRL7

142

QRL6

141

QRL5

140

QRL4

139

QRL3

138

DVDD3.3

137

DGND

136

DVDD1.8

135

QRL2

134

QRL1

133

QRL0

132

QBL7

131

QBL6

130

QBL5

129

QBL4

128

QBL3

127

QBL2

126

DVDD3.3

125

DGND

124

DVDD1.8

123

QBL1

122

QBL0

121

QGL7

120

QGL6

119

QGL5

118

DGND

117

DVDD3.3

QGL4

116 115

QGL3

114

QGL2

113

QGL1

112

TEST1

111

LPF1

110

TEST0

109

DVDD3.3

MPWEH

MPWEL

MPOE

MPCE

MPAH/PCXLK1

MDQ15/C656IN7

DGND

DVDD1.8

5556575859606162636465666768697071727374757677787980818283848586878889909192

MDQ14/C656IN6

DVDDSD

DGND

MDQ13/C656IN5

MDQ11/C656IN3

DVDD3.3

MDQ12/C656IN4

DVDD1.8

MDQ10/C656IN2

MDQ9/C656IN1

MDQ8/C656IN0

MDQ7/C656OUT

MDQ6/C656OUT

MDQ5/C656OUT

MDQ4/C656OUT

MDQ3/C656OUT

MDQ2/C656OUT

MDQ1/C656OUT

DVDDSD

DGND

MPSEL0

XIN

XOUT

MPSEL1

MDQ0/C656OUT

QE/PXCLK0QHQV

QDRVHA/QOE

Pin Connections (Top View)

DVDD3.3

DGND

DVDD1.8

QDRVHB

939495969798

QDRVHC

QDRVHD

QDRVHE

DGND

DVDDSD

DVDD3.3 99

100

101

QDRVHF

QDRVVA

102

103

QCLKL

QDRVVB 104

105

QGL0 106

DGND

DVDD1.8 107

108

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

2-2. Pin Functions

Pin No. Pin name Function Pin status

1 DVDD33 Digital 3.3V power 2 PXD24 Pixel data signal (C) input/output Pull-up when not used 3 PXD25 Pixel data signal (C) input/output Pull-up when not used 4 PXD26 Pixel data signal (C) input/output Pull-up when not used 5 PXD27 Pixel data signal (C) input/output Pull-up when not used 6 VDIN Vertical sync signal input/output Pull-up when not used 7 HDIN/FBIN Horizontal sync signal input/output/FB (SCART) signal input Pull-up when not used 8 DVDD33 Digital 3.3V power 9 DGND Digital GND

10 VRPD ADC (Dch) VRT terminal (0.1µF capacitor connected)

11 VROD ADC (Dch) VRM terminal (0.1µF capacitor connected) 12 VRMD ADC (Dch) VRB terminal (0.1µF capacitor connected) 13 VIND ADC (Dch) analog input 1 (CVBS) 14 AVDDD2 ADC analog 3.3V power 15 AVSSD2 ADC analog GND 16 AVDDD1 ADC analog 3.3V power 17 AVSSD1 ADC analog GND 18 VRPC ADC (Cch) VRT terminal (0.1µF capacitor connected) 19 VROC ADC (Cch) VRM terminal (0.1µF capacitor connected) 20 VRMC ADC (Cch) VRB terminal (0.1µF capacitor connected) 21 VINC ADC (Cch) analog input 1 (COMP-Pr/R) 22 AVDDC2 ADC analog 3.3V power 23 AVSSC2 ADC analog GND 24 AVDDC1 ADC analog 3.3V power 25 AVSSC1 ADC analog GND 26 DVDD ADC digital 3.3V power 27 DVSS ADC digital GND 28 VRPB ADC (Bch) VRT terminal (0.1µF capacitor connected) 29 VROB ADC (Bch) VRM terminal (0.1µF capacitor connected) 30 VRMB ADC (Bch) VRB terminal (0.1µF capacitor connected) 31 VIN1B ADC (Bch) analog input 1 (YC-C) 32 AVDDB2 ADC analog 3.3V power 33 VIN2B ADC (Bch) analog input 2 (COMP-Pb/B) 34 AVSSB2 ADC analog GND 35 AVDDB1 ADC digital 3.3V power 36 AVSSB1 ADC digital GND 37 VRPA ADC (Ach) VRT terminal (0.1µF capacitor connected) 38 VROA ADC (Ach) VRM terminal (0.1µF capacitor connected) 39 VRMA ADC (Ach) VRB terminal (0.1µF capacitor connected) 40 VIN1A ADC (Ach) analog input 1 (CVBS1) 41 AVDDA2 ADC analog 3.3V power 42 VIN2A ADC (Ach) analog input 2 (YC-Y) 43 AVSSA2 ADC analog GND 44 VIN3A ADC (Ach) analog input 3 (COM-Y/G) 45 AVDDA1 ADC analog 3.3V power 46 AVSSA1 ADC analog GND 47 SVSS Analog guard ring GND 48 DVDD33 Digital 3.3V power 49 DGND Digital GND 50 RESET Reset signal input 51 QOECTL Try state control for panel output line control signal

'0': Normal output, '1': High impedance 52 HDIN2 Line 2's HD input Pull-up when not used 53 VDIN2 Line 2's VD input Pull-up when not used 54 DVDD33 Digital 3.3V power 55 DGND Digital GND 56 DVDD 18 Digital 1.8V power 57 MPWEH MPSEL0='1' setting (parallel bus): Write enable upper (negative polarity) Pull-up when not used

MPSEL0='0' setting (4-line serial bus) MST: Serial clock input

Pin No. Pin name Function Pin status

58 MPWEL MPSEL0='1' setting (parallel bus): Write enable lower (negative polarity) Pull-up when not used

MPSEL0='0' setting (4-line serial bus) MSD: Serial data input

59 MPOE MPSEL0='1' setting (parallel bus): Output enable (negative polarity) Pull-up when not used

MPSEL0='0' setting (4-line serial bus) MSQ: Serial data output

60 MPCE MPSEL0='1' setting (parallel bus): Chip enable (negative polarity) Pull-up when not used

MPSEL0='0' setting (4-line serial bus) MSN: Serial select 61 MPAH/PCXLK1 (Parallel bus) address latch enable (negative polarity)/ITU-R656 clock input 62 DVDDSD Digital 3.3V power 63 MDQ15/C656IN7 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

' '0' setting: Microprocessor expander/ITU-R656 input

64 MDQ14/C656IN6 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

' '0' setting: Microprocessor expander/ITU-R656 input

65 MDQ13/C656IN5 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

'0' setting: Microprocessor expander/ITU-R656 input

66 MDQ12/C656IN4 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

'0' setting: Microprocessor expander/ITU-R656 input

67 MDQ11/C656IN3 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

' '0' setting: Microprocessor expander/ITU-R656 input

68 DVDD3.3 Digital 3.3V power 69 DGND Digital GND 70 DVDD1.8 Digital 1.8V power 71 MDQ10/C656IN2 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

'0' setting: Microprocessor expander/ITU-R656 input

72 MDQ9/C656IN1 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

'0' setting: Microprocessor expander/ITU-R656 input

73 MDQ8/C656IN0 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

'0' setting: Microprocessor expander/ITU-R656 input

74 MDQ7/C656OUT7 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

'0' setting: Microprocessor expander/ITU-R656 input

75 MDQ6/C656OUT6 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

'0' setting: Microprocessor expander/ITU-R656 input

76 MDQ5/C656OUT5 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

'0' setting: Microprocessor expander/ITU-R656 input

77 MDQ4/C656OUT4 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

'0' setting: Microprocessor expander/ITU-R656 input

78 MDQ3/C656OUT3 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

'0' setting: Microprocessor expander/ITU-R656 input

79 MDQ2/C656OUT2 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

'0' setting: Microprocessor expander/ITU-R656 input

80 MDQ1/C656OUT1 MPSEL0='1' setting: Data input/output (address input) Pull-up when not used

'0' setting: Microprocessor expander/ITU-R656 input 81 DVDDSD Digital 3.3V power 82 DGND Digital GND 83 MPSEL0 Parallel/serial bus type selection

'0': 4-line serial bus, '1': /Multiplex parallel 84 XIN Oscillation buffer input 85 XOUT Oscillation buffer output 86 MPSEL1 MPSEL0='0' setting: '0': 4-line serial bus 87 MDQ0/C656OUT0 MPSEL0='1' setting: Data input/output (address input)

' '0' setting: Microprocessor expander/ITU-R656 output

88 QE/PXCLK0 Panel data enable signal output/ITU-R656 clock output 89 QH Panel horizontal sync signal output 90 QV Panel vertical sync signal output 91 QDRVHA/QOE Panel driver signal output A (variable horizontal period)/Panel data enable

signal output 92 DVDD33 Digital 3.3V power 93 DGND Digital GND 94 DVDD18 Digital 1.8V power 95 QDRVHB Panel driver signal output B (variable horizontal period) 96 QDRVHC Panel driver signal output C (variable horizontal period)

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

Pin No. Pin name Function Pin status

97 QDRVHD Panel driver signal output D (variable horizontal period) 98 QDRVHE Panel driver signal output E (variable horizontal period)

99 DVDD33 Digital 3.3V power 100 DGND Digital GND 101 DVDDSD Digital 3.3V power 102 QDRVHF Panel driver signal output F (variable horizontal period) 103 QDRVVA Panel driver signal output A (variable vertical period) 104 QDRVVB Panel driver signal output B (variable vertical period) 105 QCLKL Panel clock signal output (L) 106 QGL0 Panel G signal (L) output 107 DVDD18 Digital 1.8V power 108 DGND Digital GND 109 DVDD33 Digital 3.3V power 110 TEST0 Test signal input 1 Connected to GND 111 LPF1 PLL1 (panel clock) LPF terminal 112 TEST1 Test signal input 2 Connected to GND 113 QGL1 Panel G signal (L) output 114 QGL2 Panel G signal (L) output 115 QGL3 Panel G signal (L) output 116 QGL4 Panel G signal (L) output 117 DVDD33 Digital 3.3V power 118 DGND Digital GND 119 QGL5 Panel G signal (L) output 120 QGL6 Panel G signal (L) output 121 QGL7 Panel G signal (L) output 122 QBL0 Panel B signal (L) output 123 QBL1 Panel B signal (L) output 124 DVDD18 Digital 1.8V power 125 DGND Digital GND 126 DVDD33 Digital 3.3V power 127 QBL2 Panel B signal (L) output 128 QBL3 Panel B signal (L) output 129 QBL4 Panel B signal (L) output 130 QBL5 Panel B signal (L) output 131 QBL6 Panel B signal (L) output 132 QBL7 Panel B signal (L) output 133 QRL0 Panel R signal (L) output 134 QRL1 Panel R signal (L) output 135 QRL2 Panel R signal (L) output 136 DVDD18 Digital 1.8V power 137 DGND Digital GND 138 DVDD33 Digital 3.3V power 139 QRL3 Panel R signal (L) output 140 QRL4 Panel R signal (L) output 141 QRL5 Panel R signal (L) output 142 QRL6 Panel R signal (L) output 143 QRL7 Panel R signal (L) output 144 QCLKR Panel clock signal output (R) 145 QGR0 Panel G signal (R) output 146 QGR1 Panel G signal (R) output 147 DVDD18 Digital 1.8V power 148 DGND Digital GND 149 DVDD33 Digital 3.3V power 150 QGR2 Panel G signal (R) output 151 QGR3 Panel G signal (R) output 152 QGR4 Panel G signal (R) output 153 QGR5 Panel G signal (R) output 154 QGR6 Panel G signal (R) output 155 QGR7 Panel G signal (R) output 156 DVDD33 Digital 3.3V power

Pin No. Pin name Function Pin status

157 DGND Digital GND 158 QBR0 Panel B signal (R) output 159 QBR1 Panel B signal (R) output 160 QBR2 Panel B signal (R) output 161 QBR3 Panel B signal (R) output 162 DVDD33 Digital 3.3V power 163 DGND Digital GND 164 DVDD18 Digital 1.8V power 165 QBR4 Panel B signal (R) output 166 QBR5 Panel B signal (R) output 167 QBR6 Panel B signal (R) output 168 QBR7 Panel B signal (R) output 169 QRR0 Panel R signal (R) output 170 DVDDSD Digital 3.3V power 171 DGND Digital GND 172 DVDD33 Digital 3.3V power 173 QRR1 Panel R signal (R) output 174 QRR2 Panel R signal (R) output 175 QRR3 Panel R signal (R) output 176 DVDD18 Digital 1.8V power 177 DGND Digital GND 178 DVDD33 Digital 3.3V power 179 QRR4 Panel R signal (R) output 180 QRR5 Panel R signal (R) output 181 QRR6 Panel R signal (R) output 182 QRR7 Panel R signal (R) output 183 TSTCLK Test clock signal input Pull-down when not used 184 QBLCA Backlight signal A 185 QBLCB Backlight signal B 186 QBLCC Backlight signal C 187 QBLCD Backlight signal D 188 DGND Digital GND 189 DVDDSD Digital 3.3V power 190 PXCLK Pixel clock signal input Pull-up when not used 191 PXD00 Pixel data signal (A) input/output Pull-up when not used 192 PXD01 Pixel data signal (A) input/output Pull-up when not used 193 PXD02 Pixel data signal (A) input/output Pull-up when not used 194 PXD03 Pixel data signal (A) input/output Pull-up when not used 195 PXD04 Pixel data signal (A) input/output Pull-up when not used 196 PXD05 Pixel data signal (A) input/output Pull-up when not used 197 DVDD18 Digital 1.8V power 198 DGND Digital GND 199 DVDD33 Digital 3.3V power 200 PXD06 Pixel data signal (A) input/output Pull-up when not used 201 PXD07 Pixel data signal (A) input/output Pull-up when not used 202 PXD10 Pixel data signal (B) input/output Pull-up when not used 203 PXD11 Pixel data signal (B) input/output Pull-up when not used 204 PXD12 Pixel data signal (B) input/output Pull-up when not used 205 PXD13 Pixel data signal (B) input/output Pull-up when not used 206 PXD14 Pixel data signal (B) input/output Pull-up when not used 207 DVDDSD Digital 3.3V power 208 PXD15 Pixel data signal (B) input/output Pull-up when not used 209 PXD16 Pixel data signal (B) input/output Pull-up when not used 210 PXD17 Pixel data signal (B) input/output Pull-up when not used

211 PXD20 Pixel data signal (C) input/output Pull-up when not used 212 PXD21 Pixel data signal (C) input/output Pull-up when not used 213 PXD22 Pixel data signal (C) input/output Pull-up when not used 214 PXD23 Pixel data signal (C) input/output Pull-up when not used 215 DVDD18 Digital 1.8V power 216 DGND Digital GND

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

LC-20B8U-S

LC-20B9U-S LC-20B9U-SM

BLOCK DIAGRAM

I2C

TUNER TU3401

31V

INPUT4

/OUTPUT

J3403

PC-AUDIO-IN

J3409

INPUT3

J3401 J3403

INPUT1

J3405 J3410

INPUT 2

J3405 J3410

TV-V SIF

V2-OUT

L2/R2-IN/OUT

PC-L,PC-R

V1, SY,SC, L1, R1, S-SW

DL1, DR1

Y1, PB1, PR1

Y2, PB2, PR2

DL2, DR2

SUB UNIT

AV2

IN/OUT

SWITCH

IC3404 Q3413 Q3410 Q3414

COMPONENT

SELECT

IC3403

5V 8V

V2-OUT

L2, R2-IN

L, R-OUT

I2C

SELECT

V2-IN

AUDIO DECODER

IC3201

IC3401

L, R

I2C

PC-RGB IN

SC401

PC-R,G,B,H,V

12V

E2PROM

Y, PB, PR

EDID

IC401

REG.

IC2003

I2C

CONVERT

IC8701

IC8

A-D

3.3

KEY1, KEY2, POW1, POW2(IC2001)

POWER SWITCH

S4202

AC IN

120~240V

CN7701

INVERTER

CONTROL SWITCH

AC_CTRL(IC2001)

AC/DC

T7701 IC7701 IC7702 IC7703 IC7704

Q7701

Q7751

VCC

POWER UNIT

SW4202-4207

SOUND

VCC

AMPLIFIER

HP-L/R

(LED UNIT)

HEAD

PHONE

IC3305

DC/DC

T7001

IC7301

Q7001

3.3V

DC/DC

IC7002

Q7005

17V DC/DC IC7001 Q7006

SOUND.VCC

POW(IC2001)

-12V 5V 9V

35V

3.3V

17V

AUDIO

AMPLIFIER

IC3206

SP-L/R

IC7004

D7012

31V

87109654321

I2C

A-D

CONVERTER

IC8701

REG. IC805

3.3V AD-CKO,HSO,VSO

R, G, B

TV-V,V,SY, SC,Y

MAIN UNIT

PROCESSER

(VIDEODECODER)

I2C

VIDEO

IC801

(3D Y/C)

(I/P)

(QS)

3.3V

INV_OFL,INV_OSC

RSDS

TRANSMITTER

IC1201

L_R,REV,LS,GSP1,GSP2,POWER,GCK,U_D

I2C

CK,R,G,B

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

LCD

PANEL

REG.

3.3V

INV_POW,L_ERR

REG.

IC2011

REG.

IC802

3.3V

1.8V

E2PROM

IC2009

MPU

IC2001

CVIN

I2C

3WIRE

POW,AC_CTRL(POWERUNIT)

RESET IC2006

IREM, LEDPOW, TIMER_LED, OPC_LED, OPC, HPDET, TSENDA, TSENCK,TSENCS

17V

35V

-12V

3.3V 5V

17V

12V

IC1706

IC1703

GRADUATION

IC1101

CS-DRIVE

Q1101 Q1102

14.6V

-6.5V 32V

VH0-255 VL0-255

HP-L/R

INV.VCC,5V

INV_OFL,INV_OSC

(IC801)

L_ERR,INV_POW

(IC2001)

OPC

SENSOR

IC4002

INVERTER UNIT

LAMP

DRIVE

TEMP.

SENSOR

IC4001

LAMP

ERROR

CHECK

R/C, LED UNIT

HEAD

PHONE

JACK

J4001

LED D4001 D4002

R/C

RECEIVER

RMC4001

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

OVERALL WIRING DIAGRAM

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

DESCRIPTION OF SCHEMATIC DIAGRAM

VOLTAGE MEASUREMENT CONDITION:

1. The voltages at test points are measured on the stable supply voltage of AC 120V. Signals are fed by a color bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.

INDICATION OF RESISTOR & CAPACITOR:

RESISTOR

1. The unit of resistance “Ω” is omitted. (K=kΩ=1000 Ω, M=MΩ).

2. All resistors are ± 5%, unless otherwise noted. (K= ± 10%, F= ± 1%, D= ± 0.5%)

3. All resistors are 1/16W, unless otherwise noted.

CAPACITOR

1. All capacitors are µF, unless otherwise noted. (P=pF=µµF).

2. All capacitors are 50V, unless otherwise noted.

CAUTION:

This circuit diagram is original one, therefore there may be a slight difference from yours.

SAFETY NOTES:

1.DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE REPLACING PARTS.

2.SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS OPERATING.

IMPORTANT SAFETY NOTICE:

PARTS MARKED WITH “å” ( ) 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.

AVIS DE SECURITE IMPORTANT:

LES PIECES MARQUEES “å” ( )SONT IMPORTANTES POUR MAINTENIR LA SECURITE DE L'APPAREIL. NE REMPLACER CES PIEDES QUE PAR DES PIECES DONT LE NUMERO EST SPECIFIE POUR MAINTENIR LA SECURITE ET PROTEGER LE BON FONCTIONNEMENT DE L'APPAREIL.

SCHEMATIC DIAGRAM

R/C, LED Unit (LC-20B9U-S)

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

R/C, LED Unit (LC-20B8U-S, LC-20B9U-SM)

654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit-1/7 (LC-20B9U-S)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit-1/7 (LC-20B8U-S, LC-20B9U-SM)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit-2/7 (LC-20B9U-S)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit-2/7 (LC-20B8U-S, LC-20B9U-SM)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit-3/7 (LC-20B9U-S)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit-3/7 (LC-20B8U-S, LC-20B9U-SM)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit-4/7 (LC-20B9U-S)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit-4/7 (LC-20B8U-S, LC-20B9U-SM)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit-5/7 (LC-20B9U-S)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit-5/7 (LC-20B8U-S, LC-20B9U-SM)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit-6/7

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit-7/7

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

SUB Unit-1/2

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

SUB Unit-2/2

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

POWER Unit-1/3 (LC-20B9U-S)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

POWER Unit-1/3 (LC-20B8U-S, LC-20B9U-SM)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

POWER Unit-2/3 (LC-20B9U-S)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

POWER Unit-2/3 (LC-20B8U-S, LC-20B9U-SM)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

POWER Unit-3/3

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

INVERTER Unit

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

PRINTED WIRING BOARD ASSEMBLIES

MAIN Unit (Side-A)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S

LC-20B9U-S LC-20B9U-SM

R8705

FB806

C889

R850

SC2002

C8709 R8701 R8725

R8704

C867

IC80

LUG2003

R2020

R2019

R2016

Q2001

SC2004

C2011

C2007

IC2010

R2104

R2001

R2028

R2101

R2102

R2029

R2040

R2094

R2032

R2026

R2013

C2012

R2004

R2014

C2013

R2023

C2014

C2006

R2103

R2038

R2036

R2098

X2001

C2009

C2005

R2037

C2016

R2021

IC2011

R2044

R2041

R2042

SC2003

R2105

R2106

R2088

R2033

FL2001

C2017 R2045

C2008

R2005

R2002 R2090

R2081

R2078

R2046

IC2001

C2018

R2003

R2048

C2021

C2019

Q2012

R2049

R2050

R2047

C2020

R2096

Q2022

Q2021

R2051

R2053

R2055

R2087

R2054

R2083

R2100

R2076

R2082

R2056

R2058

R2057

R2060

R2062

R2077

R2065

R2067

R808

R2080

R2073 R2072

R2079

C885

R8707

FB8704

R8726

L801

R8722 R8723

FB8702

C873

FB807

C861

C8715

C8710

C8736

C8719

IC802

R8721R8720

C8735

IC8701

C8734

C8716

C8733

C8717

R8718

C8718

R8724

R8719

R8703

C878

R852

R851

C2004

LUG2002

P2002

MAIN Unit (Chip Parts Side-A)

C1723

C877

C1133

R1106

R1107

C1115

C1114

IC11

C1116

C1117

87109654321

LC-20B8U-S

R852

LC-20B9U-S LC-20B9U-SM

R8719

R8705

FB806

878

R850

851

R8704

C889

SC2002

C867

IC805

C8709 R8701 R8725

R8715

C891

R1101

IC1101

C886

R872

IC806

C890

C872

C801

R829

C862

C887

R874

R831

D801

R876

R830

C806

C807

C811

C812

C818

C820

C825

C828

R877

C1727

R873

C858

R832

C1704

C832

C1728

C833

C834

IC801

C835

C866

R811

X801

C1206

IC1202 C1230

C855

R809

R810

C1204

C1215

R1215

R843

C865

C836

R883

C853

C837

C1220

C1219

C1218

C1217

C1216

SC2001

C851

C838

C874

C1214

C850

C839

C1213

C1212

C1211

C849

C848

C847

C846

R867 C842

C1222

C1221

C1209

R1213

R1210

C1210

C843

C841

C840

R1206

D403

D410

D402

D409

D401

D408

R1208

R1207

R1205

C1201

C1208

C1205

L401

D407

C1224

FB1202

FB1201

LUG2004

SC401

LUG2001

C1223

FB1203

C1714

R1106

R1107

C1115

C1114

C1116

C1117

R1108

R1109

C1122

R1110

C1123

C1124

C1127

C1126

C1125

SC1201

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

MAIN Unit (Side-B)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S

Q1108

LC-20B9U-S LC-20B9U-SM

TL2088

C854

R899

R833

TL1224

TL2087

R812

R1219

TL1214

TL1215

TL1213

TL2005

TL2010

FB808

R814

R882

R848

R841

R834

TL1218

TL1211

TL1212

C1228

TL2013

C857

C856

R816

C808

C809

C810

R1746

Q1707

TL1210

C1232

TL2023

C864

R856

C863

R813

C822C815

C821C814

R801

R802

TL802

R1747

D1701

C1707

TL1262

R817

C859

C805

FB809

R815

C823C816

C831

R1701

C1705

C1708

Q804

C802

C804

C829

C830

Q1708

C803

C813

R1102

TL2037

TL2026

TL2048

R860

R861

R855

C876C875

R838

R1223

TL1234

TL1241

TL1239

TL1240

TL2028

TL2025

IC1201

TL1238

TL1236

TL1235

TL1237

TL2049

TL2024

C401

D406

R417

R416

R414

TL401

TL402

TL403

TL2122

TL404

TL410

R845

TL1257

C1226

R1217

TL1259

C1225

R415

R418

R419

R846

TL1256

TL1255

TL1249

TL1258

TL1250

TL409

IC401

R410

FB402

FB403

FB404

R407

D404

R408

D405

TL2124

C1715

R1714

C1725

TL1261

C402

TL2123

TL405

TL406

TL407

TL408

L1702

C1227

R1218

TL2125

C1726

R1216

TL1260

R409

FB401

C403

C405

IC402

C404

R412

R413

R1201

R1202

R1203

R1204

R1209

R1211

C1202

C1203

C1207

TL1254

TL1252

C1231

TL1251

TL2051

R404

R411

R405

R402

R406

R401

R842

R847

R840

TL1253

TL1245

TL1247

TL1248

TL2050

R403

R868

R839

R1224

TL1225

TL1243

TL1246

R837

TL1244

TL1242

C1229

TL2032

TL2027

C845

C844

R835

R1222

TL1232

TL1233

TL1230

TL1231

TL2036

TL2029

R1221

TL1229

TL1226

TL1227

TL1228

TL1220

R2086

C852

R836

TL1222

TL1223

R2089

TL2035

TL2086

R869

R1220

TL1219

TL1221

TL1216

TL1217

C892R818

R827

FB805

R895

IC1704

Q1102Q1101

TL2001

C819R820R822

R819

C817

C824

C826

R824

L802

R893

Q803

R896

D1703

R1105

TL2002

TL2004

R821

R878

R823

R826

R803

R880

C1706

TL1208

TL1209

C1132

C1109

TL2003

Q805

R857

C827R825R828

R858

R881

FB804

R894

D1710

R1104

TL2006

C893

C894

Q806

TL801

Q802

R897

IC1707

TL1206

TL1207

TL1205

C1108

R1103

TL2009

TL2007

C860

FB803

TL803

TL1204

TL1202

TL1203

C1121

TL2008

TL2011

C868

R879

R871

C870

R806

D1711

C1103

C1104

C1120

C1119

TL2014

TL2012

R2107

R2022

R8702

FB8703

R805

R1750R807

TL1102

TL1201

C1118

R2075

TL2015

C8707

R898

IC804

C871

R1752

C1101

C1102

R1751

TL2016

C8704

C8701

C8727

C8726

C8720

C8725

R804

Q1705

C1107

C1106

C1105

C869

C1113

C1112

MAIN Unit (Chip Parts Side-B)

87109654321

R805

TL2014

TL2012

R2107

R2075

TL2015

TL2016

TL2022

TL2018

TL2020

TL2038

TL2030

TL2034

TL2031

TL2069

TL2067

TL2070

TL2071

TL2068

TL2065

TL2064

TL2066

TL2062

TL2063

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

R8702

FB8703

R1750R807

TL1102

L1201

C1118

C8704

C8707

R898

IC804

C871

Q1705

R1752

C1101

C1102

R1751

C8701

C8727

C8726

C8720

C8725

R804

C1107

C1106

C1105

C1113

C8738

C869

Q1106

C1131

TL1101

Q1108

C1112

C8706

C8737

C8724

R892

R1114

R1119

C1111

C1110

C8711

C8708

R844

Q801

R1115

Q1105

Q1107

R1118

R1116

C8713

R891R890

C888C883

C8703

C8714

C882

L803

R1117

C1130

C8705

C884R875

C1129

R1111

Q1103

D1103

R1113

C8729

C8723

C881

IC1706

C8722

C8712

C880

R887

D1705

R1112

Q1104

C8730

R8706

C8721

R889

IC803

R1120

Q1701

C8732C8731

C879

R886

C1720

Q1702

C8702

FB8701

R884

R1740

R1741

R1742

R1739

Q1710

R1749

R1704

R1702

R888

R885

R1748

C1702

R1754

L1701

C1713

Q1709

R1757

R1755

Q1711

R2069R2068

R1756

Q1712

R2070

R1753

R2061

R2063

R2015

R2064

R2066

R2059

R2071

TL2076

TL2075

R2074

C2022

R1709

R1711

D1707

C1711

R2052

Q1704

D1706

C1701

R1708

R1713

TL2080

Q2005

R2034

IC2009

R1712

Q1703

R1703

R1707

R1706

D1708

TL2085

TL2084

TL2081

R2024

IC2006

R1710

R2031

R2027

C2015R2035

Q1715

R1761

R1745

C1703

IC1703

C1719

R1744

R1760

R2099

R2030

R2009

TL2077

TL2073

TL2074

R2025

R2095

R2093

C2010

C2003

Q1717

R1762

R1759

Q1713

R1758

R2010

R2008

Q2019

Q1716

R1763

C1717

C1716

R1717

R1724

R1715

C1718

Q1706

R2017

R2018

R2043

D1709

R1729

R1721

R1723

Q1714

Q2020

R2039

R1722

R1719

TL2072

R2012

C2002

R2011

TL2055

TL2053

TL2058

C2030

C2031R2108

TL2044

TL2045

TL2047

R1718

TL2060

TL2040

TL2042

D2007

C2001

R2007

IC2003

C2025

C2024

C2023

C2026

C2027

C2028

R2092

C2029

TL2061

R2085

R2091

R2084

D2002

R2006

TL2052

TL2054

TL2056

TL2057

TL2059

TL2039

TL2041

TL2043

TL2033

TL2046

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

SUB Unit (Component Side)

87109654321

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

1716 1918151413121110

LC-20B8U-S

LC-20B9U-S LC-20B9U-SM

J3403

D3412

R3459

C3467

C3470

R3529

R3519 Q3419

J3401

R3480

R3427

L3401

R3410

R3442 C3419

C3404

R3405

C3402

R3530

R3532

R3408

D3425

D3426

C3410

R3483

C3409

R3411

L3405

R3447

D3401

R3481

D3402

R3431

R3491

R3482

C3429

C3427

L3402

Q3404 Q3406

Q3410

R3451

R3470 R3477 R3404 R3418 R3452 C3428 R3453

D3403

R3437

R3441

C3465

C3432

C3434

R3407

C3431

C3430

R3454

R3487

D3404

R3406

R3423

R3467

R3462

C3469

R3504

C3439

R3433

C3420

R3401

C3413

R3505

Q3415

Q3414

R3509

IC3401

R3455

C3440

C3480

R3485

Q3401

C3424

C3476

R3445

R3474 C3438

C3481

R3429

Q3403

R3443 R3444

Q3417

R3515

R3535

R3468

R3469

D3302

C3482

Q3402

R3514

R3517

R3476

Q3416

R3475

R3464

R3440 C3447

R3472

R3415 R3424

D3407

C3479

C3449

R3463

C3450

D3301

C3483

R34

R3412

R3488

C3414

R3473

R3471

C3484

SC34

C3421

R3524

LUG3431

D3413

R3448

C3403

C3401

TU3401

C3458

C3471 C3462

C3464

C3472

C3474

LUG3432

SUB Unit (Chip Parts Side)

87109654321

J3410

R3515

Q3403

Q3417

J3405

J3409

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

LUG3434

R3429

Q3402

R3443 R3444

R3514

R3476

R3535

R3475

R3468

D3302

C3482

C3479

R3517

Q3416

R3463

R3464

R3440 C3447

R3472

D3301

C3483

R3412

R3415 R3424

C3414

D3407

R3471

C3449

C3450

C3484

SC3402

R3484

R3488

C3421

R3503 C3459

R3473

D3201

D3202

R3524

R3426

D3409

R3501

C3343

R3523

R3430

Q3413

R3340

R3266

R3494

D3408

IC3404

C3269

C3267

Q3205

R3251

C3263

C3423

R3258

Q3206

R3255

C3268

R3436

D3406

Q3305

C3368

R3248

R3346

R3259

Q3207

R3252

D3405

R3422

R3376

C3348

R3257

R3260

R3253 R3254

C3264

R3256

C3270 C3265

C3266

C3276

R3428 R3497

D3415

C3425

C3350

R3345

D3210

R3261

C3271

R3425

C3446

L3303 D3414

C3349

R3361

C3272

IC3206

R3534

R3495 R3435 C3426

C3441

C3444

R3360

Q3208

R3262

R3420

R3466

C3443

R3465

C3437

C3346

IC3305

C3345

R3339

R3265

C3273

C3275

R3498 R3421

D3418

C3417

D3419

R3461

C3436

R3344

C3347

C3369

R3377

D3211

C3274

D3417

IC3403

R3460

C3435

R3357

R3263

R3264

R3267

R3533

D3416

R3417

C3364

R3496 R3434

C3422

C3433

C3445

C3366

C3301

C3277

R3414

D3422

R3499 R3416

D3421

C3201

L3203

C3254

C3418

R3489

C3237

C3238

D3208

D3207

R3432

L3204

C3233

C3251

C3252

C3365 C3309 C3308

C3262 C3261

C3253

D3206

C3405

C3205

R3250

R3492

C3245

C3244

R3413

C3493

C3243

R3490

R3543 R3544

C3495

C3235

R3230 C3230

R3237 C3232

R3419

R3540

Q3420

R3542

Q3422

R3550

C3494

C3236

IC3201

C3234

C3216

C3406

R3409

R3541

R3553

R3554

R3545

C3218

C3228

R3493

R3551

R3552

Q3421

R3547

L3201

R3403

D3410

D3411

R3546

R3549

R3548

FB3201

C3202

R3478

R3513 R3516

R3518

R3520 R3521

C3207 R3206 C3203

R3402

C3407

R3201

C3220 C3219 C3208

C3209

L3202

R3479

C3408

P3401

R3203

R3211

C3222

R3209

C3204

X3201

Q3204

C3226

R3214

Q3203

R3210

D3424

D3423

C3212 C3213

R3221

R3215

LUG3433

1716 1918151413121110

LC-20B8U-S LC-20B9U-S LC-20B9U-SM

POWER Unit (Component Side)

87109654321

100

SHARP LC20B8US, LC-20B9U-S, LC-20B9U Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual