SHARP LC30HV4U, LC-30HV4D Service Manual

LC-30HV4U LC-30HV4D

SERVICE MANUAL

S33Y2LC30HV4U

LCD COLOR TELEVISION

LC-30HV4U

MODELS

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

LC-30HV4D

CONTENTS

Page

» IMPORTANT SERVICE SAFETY PRECAUTION .....2

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

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

» DIMENSIONS ....................................................12

» REMOVING OF MAJOR PARTS........................14

ADJUSTMENT PROCEDURES (AVC System) ..

» UPGRADING INSTALLED PROGRAMS ...........33

» ADJUSTMENT PROCEDURES (Display) .........35

» MAJOR IC INFORMATIONS..............................39

» TROUBLE SHOOTING TABLE ..........................60

» CHASSIS LAYOUT.............................................70

» SYSTEM BLOCK DIAGRAM (AVC System) ...... 74

» SIGNAL FLOW BLOCK DIAGRAM

(AVC System).....................................................76

» POWER SYSTEM BLOCK DIAGRAM

(AVC System).....................................................78

» PC I/F BLOCK DIAGRAM (AVC System) ..........80

» SIGNAL BLOCK DIAGRAM (Display)................ 82

» POWER UNIT BLOCK DIAGRAM (Display) ...... 84

» OVERALL WIRING DIAGRAM (AVC System) ... 86

» OVERALL WIRING DIAGRAM (Display)............ 90

» DESCRIPTION OF SCHEMATIC DIAGRAM ..... 92

» WAVEFORMS .................................................... 93

» SCHEMATIC DIAGRAM..................................... 94

» PRINTED WIRING BOARD ASSEMBLIES...... 169

» PARTS LIST .....................................................213

» PACKING OF THE SET ...................................253

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-30HV4U

2 2

LC-30HV4D

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 A GAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE.

A V

AVC SIDE: LCD SIDE: F1(3.15A, 250V), F3 (2A, 250V) F6551, F6552, F6553, F6554,

F701 (2A, 250V) FUSE.

F6555, F6556 (2.5A, 250V)

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 A C outlet. » Using two clip leads, connect a 1.5k ohm, 10 watt

resistor paralleled by a 0.15µF capacitor in series with all exposed metal cabinet parts and a known earth ground, such as electrical conduit or electrical ground connected to an earth ground.

» Use an AC voltmeter having with 5000 ohm per volt,

or higher, sensitivity or measure the A C 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 necessar y, a nonpolarized adaptor plug must be used only for the purpose of completing these checks.) Any reading of 0.75V rms (this corresponds to 0.5 mA. rms AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the monitor to the owner.

DVM

AC SCALE

1.5k ohm 10W

0.15 µF

TEST PROBE

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

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SAFETY NOTICE

Many electrical and mechanical parts in LCD color television have special safety-related characteristics. These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarily increased by using replacement components rated for higher voltage , w attage , 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”

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Replacement Parts List

and

LC-30HV4U

LC-30HV4D

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.

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

PRECAUTION: POUR LA PRO TECTION CONTINUE CONTRE LES RISQUES D'INCENDIE, REMPLACER LE FUSIBLE CÔTÉ AVC:F701 (2A, 250V)

A V

CÔTÉ LCD:F1 (3. 15A, 250V), F3 (2A, 250V) F6551, F6552, F6553, F6554, F6555, F6556 (2.5A, 250V)

VERIFICATIONS CONTRE L'INCEN-DIE ET

commande et des boutons, écusson, etc.) et mesurer la chute de tension CA en-travers de la résistance. Toutes les vérifications doivent être refaites après avoir inversé la fiche du cordon d'alimentation. (Si nécessaire, une prise d'adpatation non polarisée peut être utilisée dans le but de terminer ces vérifications.) Tous les courants mesurés ne doivent pas dépasser

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

LE CHOC ELECTRIQUE

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

1. Inspecter tous les faisceaux de câbles pour s'assurer que les fils ne soient pas pincés ou qu'un outil ne soit pas placé entre le châssis et les autres pièces métalliques du récepteur.

2. Inspecter tous les dispositifs de protection comme les boutons de commande non-métalliques, les isolants, le dos du coffret, les couvercles ou blindages de réglage et de compartiment, les réseaux de résistancecapacité, 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 suiv ante:

• Brancher le cordon d'alimentation directem-ent à une prise de courant de 110-240V. (Ne pas utiliser de transformateur d'isolation pour cet essai).

• A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ 10 watts en parallèle a v ec un condensateur de 0,15µF en série avec toutes les pièces métalliques exposées du coffret et une terre connue comme une conduite électrique ou une prise de terre branchée à la terre.

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AUX PIECES METALLIQUES EXPOSEES

VTVM

ECHELLE CA

1.5k ohm 10W

0.15 µF

SONDE D'ESSAI

BRANCHER A UNE TERRE CONNUE

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

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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-30HV4U LC-30HV4D

Precautions for using lead-free solder

1 Employing lead-free solder

"PWBs" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder. Example:

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 ser vice 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, remov e 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

Item 30 LIQUID CRYSTAL TELEVISION, Model: LC-30HV4U/D

TV Function

American TV Standard NTSC System

VHF/UHF

VHF 2-13ch, UHF 14-69ch

CATV 1-125ch

Audio multiplex BTSC System

Terminals S-VIDEO in, AV in, COMPONENT in

INPUT 2

S-VIDEO in, AV in

INPUT 3

S-VIDEO in, AV in, COMPONENT in, DVI-DIGITAL in

ANTENNA 75

Unbalance, F Type for VHF/UHF/CATV in

INPUT 4 S-VIDEO, AV in PC

15 Pin mini D-Sub, Audio in (Ø 3.5mm jack)

OSD language

English/French/Spanish

Power Requirement

AC 110-240 V, 50/60 Hz

Power Consumption

42 W (0.35W Standby with AC 120 V)

Weight

12.1 lbs./5.5 kg (w/o stand), 12.3 lbs./5.6 kg (with stand)

Accessories

Operation manual (

1), Remote control unit ( 1), System cable ( 1), AC cord

(

1), “AA” size Alkaline battery ( 2), Stand unit ( 1), Cable clamp ( 1), RF

cable (

TV-standard (CCIR) Receiving

Channel

Rear INPUT 1

Front

LCD panel 30 Advanced Super View & BLACK TFT LCD Number of dots 2,949,120 dots (1280

768 3dots)

Brightness 430 cd/m

Backlight 60,000 hours (at Save 1 mode) Viewing angles H : 170° V : 170° Audio amplifier 10W

Speakers Ø 8cm 2pcs

AVC System

Monitor Out Audio (Variable, Fixed), S-VIDEO out, AV out

Headphones

Ø 3.5mm jack

AVC System Display AVC System

Display

112 W (0.5W Standby with AC 120 V)

34.8 lbs./15.8 kg (w/o stand), 43.4 lbs./19.7 kg (with stand)

DC OUTPUT DC6.5V 7W MAX

Specifications are subject to change without prior notice.

LC-30HV4U LC-30HV4D

OPERATION MANUAL

How to open the door.

Headphone

(When connecting headphones, the sound from the

speakers is muted.)

PC INPUT terminal (ANALOG RGB)

PC INPUT terminal (AUDIO)

Front view

A VC System

INPUT 4 terminal (S-VIDEO)

INPUT 4 terminal (VIDEO)

INPUT 4 terminals (AUDIO L/R)

CLEAR*

MAIN POWER button

STANDBY/ON indicator

• AV MODE resets to USER

case, press CLEAR, shown in the diagram, lightly with the end of a ballpoint pen or other pointed object.

This will reset the System as shown below.

* If the AVC System is switched on but it does not appear to be operating corr ectly, it may need resetting. In this

AC INPUT terminal

DISPLAY OUTPUT 1 terminal

DISPLAY OUTPUT 2 terminal

RS-232C

terminal

in the near future.)

DC OUTPUT terminal

DVI-DIGITAL

INPUT

terminal

(Terminal for expanded functionality

Antenna (B)

input terminal

Antenna (A) input terminal

• TV channel returns to initial channel setting (Air:2ch, Cable:1 or 2ch)

• Twin picture resets to normal

NOTE

• Audio setting initializes

• SRS resets to off

• Image position initializes

• Pressing CLEAR will not work if the System is in standby mode (indicator lights red).

Rear view

know it. See page for initializing to the factory preset values when you forget your secret number.

• Pressing CLEAR will not delete channel preset or secret number. See page 60 for clearing the secret number when you

Antenna (A) output

terminal

)

, P

INPUT 3 COMPONENT

video terminals (Y, P

INPUT 3 terminals (AUDIO L/R)

INPUT 3 terminal (S-VIDEO)

)

, P

INPUT 1 terminal (S-VIDEO)

INPUT 1 terminal

INPUT 1 COMPONENT

(VIDEO)

video terminals (Y, P

(S-VIDEO)

MONITOR OUTPUT terminal

INPUT 3 terminal (VIDEO)

INPUT 1 terminals

(AUDIO L/R)

INPUT 2 terminals

(AUDIO L/R)

terminal (VIDEO)

MONITOR OUTPUT

MONITOR OUTPUT terminals (AUDIO L/R)

INPUT 2 terminal (VIDEO)

INPUT 2 terminal (S-VIDEO)

Display

Part names

MAIN POWER

button

INPUT

POWER button

/ )

(CH

(VOL

CHANNEL buttons

VOLUME buttons

*OPC: Optical Picture Control

SLEEP timer indicator

OPC indicator*

POWER indicator

OPC sensor

Remote control sensor

LC-30HV4U LC-30HV4D

Display (rear view)

Removing the terminal cover

Setting the System

After putting the Display and the AVC System in place, connect the system cables and AC cords. Use the

cable clamp for bundling the cables.

Press down the two

upper hooks to remove

the cover toward you.

AC cord

(WHITE)

Connect the plug into the

terminal and secure it by

tightening the thumb screws.

DISPLAY INPUT2 DISPLAY INPUT1

System cable

AC cord

(GRAY) (WHITE)

(GRAY)

sides click.

until the hooks on both

Connect the plug firmly

AVC System (rear view)

Connecting the system cable and the AC cord to the Display

Connecting the system cable and the AC cord to the AVC System

CAUTION

• TO PREVENT RISK OF ELECTRIC SHOCK, DO NOT TOUCH UN-INSULATED PARTS OF ANY CABLES WITH THE

AC CORD CONNECTED.

Part names

(AV mode: STANDARD,DYNAMIC,

MOVIE, GAME, USER. PC

mode: STANDARD, USER.)

on or off.

System mode.

1 TV POWER: Switch the Liquid Crystal Television power

2 FRONT SURROUND: Set SRS* and FOCUS* Sound

3 AV MODE:Select an audio or video setting.

4 VIEW MODE: Select the screen size.

DVD

/LD

INPUT

/SAT

/DTV

ANT-A/B

FRONT

TV VCRCBL

12 13

24 25

POWER

Remote control unit

5 DISPLAY: Display the channel information.

6 SLEEP: Set the sleep timer.

7 FLASHBACK: Return to the previous channel or input

EDIT/

SUB TWIN CH

MTS CC

SELECT

INPUT

TWIN

FREEZE

PICTURE

SLEEP LEARN

SURROUND

VIEW

DISPLAY

MODE

/ : Set the volume.

external mode.

8VOL

123

9 MENU: Display the menu screen.

456

10 MENU RETURN: Return to the previous menu screen.

789

/ / / : Select a desired item on the screen.

(TV , INPUT 1, INPUT 2, INPUT 3, INPUT 4, PC)

will light. The lighting will turn off if no operations

are performed within about 5 seconds. This button

is used for performing operations in dark places.

: When pressed all buttons on the remote control unit

broadcasts via the two tuners.

RETURN

15 MTS: Select the MTS/SAP.

INFO

GUIDE

DTV/SAT

VCR REC

SET/

ENTER

FAVORITE CH

POWER

SOURCE DTV/SAT

12 ANT-A/B: Select between ANT-A and B to watch

13 INPUT: Select a Liquid Crystal T elevision input sour ce.

ENT

100

FLASHBACK

DTV/DVD TOP

MUTE

VOL CH

MENU TV/SAT/DVD

16 CC: Display captions during closed-caption source.

ABCD

/ : Select the channel of sub screen.

normal screen.

Press again to return to normal

SELECT: Select the active screen.

SUB INPUT: Select an input source of sub screen.

FREEZE: Set the still image. Press again to return to

TWIN PICTURE: Set the twin picture mode.

screen.

17 TWIN CH buttons

RECEIVER

INPUT VOL VOL

POWER

TWIN CH

NOTE

Crystal Television.

• When using the remote control unit, point it at the Liquid

/ : Select the channel.

different categories.

command of the channel.

18 0 – 9: Set the channel.

19 100 ENT: Select the three digit mode. Execute a

20 CH

A, B, C, D: Select four preset favorite channels in four

21 MUTE: Mute the sound.

22 SET/ENTER: Execute a command.

23 FAVORITE CH

is a trademark of SRS Labs, Inc.

FOCUS technology is incorporated under license from

SRS Labs, Inc.

When viewing via ANT-A: up to 16 channels can be

assigned in A, B, C and D.

When viewing via ANT-B: up to 16 channels can be

assigned in A, B, C and D.

With ANT-A and B combined, you can preset up to 32

favorite channels in advance.

While watching, you can toggle the selected channels

by pressing A, B, C and D.

24 LED for transmission confirmation

25 Mode switch:

LC-30HV4U LC-30HV4D

Fit the stand to the AVC

System.

Insert the stand into the AVC

System, making sure that the

thick and thin bulges of the

stand align with the big and

small holes on the AVC

System.

Stand cushion

Attach each cushion to

the stand as shown.

Peel each cushion

away from the

paper and attach

to the four areas at

the bottom.

Thick

Thin bulge

Attaching point

bulge

Big hole

Small

hole

Attaching point

The AVC System installed

vertically with the stand.

Vertical mounting Angular mounting

CAUTION

Customers should not attempt to do the work themselves. SHARP bears no responsibility for improper mounting or

mounting that results in accident or injury.

Setting the Display on the wall

• Carefully read the instructions that come with the bracket before beginning work.

Using an optional bracket to mount the Display

• You can ask a qualified service personnel about using an optional AN-37AG1 bracket to mount the Display

Hanging on the wall

AN-37AG1 wall mount bracket. (See the bracket instructions for details.)

to the wall.

• Installing the Liquid Crystal T elevision r equires special skill that should only be performed by qualified service personnel.

Setting the A VC System with the stand

Stick each spacer to the

How to install the AVC System vertically using the stand unit.

• Use the supplied stand unit for installing the AVC System vertically in an upright position.

stand as shown.

Peel each spacer

away from the

Stand

spacer

paper and attach

to the four bulging

areas on the stand.

Bulge

Stand screw

Attach the stand using the

stand screws as shown.

Cables come out from

NOTE

standing up directly on the floor or a flat surface as this can result in equipment failure.

• When mounting the AVC System vertically, always use the supplied stand. Be careful not to block vent holes when

the small opening.

Setting the System (continued)

Preparation

Display (rear view)

Attaching the clamp to the leg of the Display

Bundling the cables with the clamp

Closing the terminal cover

Speaker

plug

Remove the speaker plug from

the terminal on the Display.

(Do not remove the plug by

pulling the cord.)

Now the speaker can be

detached from the Display.

Take hold of the speaker and

slowly slide it sideways.

(The speaker plug is still

inserted, so make sure not to

pull the speaker too far.)

LC-30HV4U LC-30HV4D

Removing the speakers

This unit has detachable type speakers.

You can detach the system speakers when using external amplifier/speakers.

Before attaching/detaching speakers

• Before performing work make sure to turn off the System.

• Before performing work spread cushioning over a flat surface to lay the Display on. This will prevent it from

DVI

Y/P

S-VIDEO

Y/P

S-VIDEO

being damaged.

Before detaching (or attaching) speakers, unplug the AC cord from the AC outlet.

Digital TV tuner

Unfasten the screws used to

123

AVC System

(rear view)

secure the speakers in place.

S-VIDEO S-VIDEO

CAUTION

AV Receiver

(Built-in Tuner Amp)

• The speaker terminals on the Display are only for the attached speakers. Do not connect any thir d party plug or speaker

NOTE

to the terminal.

• Insert the speaker plug completely into the terminal.

• Do not handle or move the Display by the speakers.

• Perform the same steps for both left and right speakers.

• To attach the speakers, perform the above steps in reverse order.

AVC System

(front view)

Game console/

Camcorder

S-VIDEO

ANALOG RGB

PC-AUDIO

VCR

DVD player

Using external equipment

You can connect many types of external equipment to your System, like a DVD player, VCR, Digital TV tuner, PC,

game console and camcorder. To view external source images, select the input source from INPUT on the

remote control unit or on the Display.

NOTE

CAUTION

PC, game console, camcorder or other external equipment.

• To protect all equipment, always turn off the AVC System before connecting to a DVD player, VCR, Digital TV tuner,

• Please refer to the relevant operation manual (DVD player, PC, etc.) carefully before making connections.

LC-30HV4U LC-30HV4D

Command 4-digits:Command. The text of four characters.

Parameter 4-digits:Parameter 0 – 9, x, blank, ?

Return codeCommand 4-digits Parameter 4-digits

1 bit

8 bits

None

9,600 bps

The input signal (PC/AV) can be selected, the volume can be adjusted and various other adjustments and

RS-232C port specifications

PC Control of the System

• When a program is set, the Display can be controlled from the PC using the RS-232C terminal.

Remarks

NOTE

settings can be made, enabling automatic programmed playing.

connections.

Attach an RS-232C cable cross-type (commercially available) to the supplied Din/D-sub RS-232C for the

•

• This operation system should be used by a person who is accustomed to using computers.

Macintosh 13 (67 Hz)

Baud rate:

Communication conditions

Set the RS-232C communications settings on the PC to match the display’s communications conditions. The

Display’s communications settings are as follows:

None

Flow control:

Parity bit:

Data length:

Stop bit:

Communication procedure

Send the control commands from the PC via the RS-232C connector.

The display operates according to the received command and sends a response message to the PC.

Macintosh 16

Command format

Do not send multiple commands at the same time. Wait until the PC receives the OK response before sending

the next command.

Macintosh 19

Eight ASCII codes CR

????

0009

parameter.)

When the input parameter is not within an adjustable range, “ERR” returns. (Refer to “Response code format”.)

No problem to input any numerical value for “x” on the table.

C1 C2 C3 C4 P1 P2 P3 P4

Parameter

Input the parameter values, aligning left, and fill with blank(s) for the remainder. (Be sure that 4 values are input for the

100

0055

When “?” is input for some commands, the present setting value responds.

PC compatibility chart

Appendix

85 Hz

70 Hz

85 Hz

60 Hz

65 Hz

72 Hz

75 Hz

85 Hz

56 Hz

60 Hz

72 Hz

75 Hz

85 Hz

74.5 Hz

60 Hz

70 Hz

75 Hz

85 Hz

60 Hz

Resolution Frequency

640 400

720 400

640 480

848 480 60 Hz

800 600

832 624

1024 768

1280 768

1280 1024 60 Hz

Apple and Macintosh are registered trademarks

of Apple Computer, Inc.

DDC is a registered trademark of Video Electronics

Standards Association.

Power Management is a registered trademark of

Sun Microsystems, Inc.

VGA and XGA are registered trademarks of

International Business Machines Co., Inc.

LC-30HV4U LC-30HV4D

Picture

Contrast

Brightness

Red

Green

Blue

Color

Tint

C.M.S.

Sharpness

Advanced

Color Temp

Black

PC input mode menu items

List of PC menu items to help you with

operations

Picture

Contrast

A V input mode menu items

Basic adjustment settings

List of AV menu items to help you with

operations

Brightness

3D-Y/C

Monochrome

Film Mode

I/P Setting

Audio

Treble

Bass

Balance

Power control

Power Save

Power Management

No Signal Off

No Operation Off

Setup

Input Signal

Auto Sync.

Fine Sync.

EZ Setup

CH Setup

Input Signal

Picture Flip

Language

Parental CTRL

Position

Stretch Mode

Picture Flip

Option

Audio Out

Cool Climate

Option

Language

Input Select

Noise Clean

Audio Out

Cool Climate

Response code format

Appendix

Normal response

Return code (0DH)

ERR

Problem response (communication error or incorrect command)

CONTROL CONTENTS

It input-switches by the toggle. (It is the same as an input change key)

It input-switches to TV. (A channel remains as it is. (Last memory))

It input-switches to INPUT1~INPUT4.

It input-switches to PC.

An input change is also included.

AUTO

(Toggle)

Input terminal number (1–4)

AUTO

00123

AV-Y/C _ _ _ 1

_________ _________ _________ 0x0

PARAMETER

Although it can choose now, it is toggle operation in inside.

COMPONENT

AUTO

AV-Y/C

COMPONENT

DVI

(Toggle)

_____

Return code (0DH)

ITGD

ITVD

IAVD

IPCD

INP1

INPUT1-4

INPUT 1

INPUT SELECTION B

INP3

INPUT 3

AVMD

AV MODE SELECTION

POWR

CONTROL ITEM COMMAND

INPUT SELECTION A TOGGLE

POWER SETTING It shifts to standby.

Command table

• About the command except being indicated here, it is outside the guarantee range of operation.

STANDARD

DYNAMIC

MOVIE

12345

GAME

USER

Volume (0–60)

*****

VOLM

VOLUME

AV mode. ( 10)

PC mode. ( 90)

AV mode. ( 30)

_____

*****

* * *

VPOS

HPOS

H-POSITIONH-POSITION

V-POSITION

POSITION

Stretch [AV]

Normal [PC]

Stretch [PC]

Toggle operation.

(Toggle)

Dot by Dot [PC]

Zoom [PC]

(Toggle)

Off

___

___ 123

SRSS

SRS

Although it can choose now, it is toggle operation in inside.

PC mode. ( 60)

Only PC mode. ( 90)

Only PC mode. ( 20)

(Toggle) [AV]

Side Bar [AV]

S.Stretch [AV]

Zoom [AV] _________ _________

_________

012345678

PHSE

CLCK

WIDE

CLOCK

PHASE

VIEWMODE

An input change is included if it is not TV display.

In Air, 2–69ch is effective.

In Cable, 1–125ch is effective.

If it is not TV display, it will input-switch to TV.

Change toggle operation of tuner A/B.

The channel number of TV 1

(Toggle)

(1~125)

FOCUS

FOCUS SRS

One screen

Twin screens

The channel number of TV

The channel number of TV 1

_________

xxx

TWI N

TWIN PICTURE

DCCH

DIRECT

CHANNEL

CHUP

CH UP

ANTS

CHDW

CH DOWN

ANT-A/B

Toggle operation of a closed caption.

(Toggle)

OFF

CC1

CC2T1T2

01234

CLCP

NOTE

• If an underbar (_) appears in the parameter column, enter a space.

• If an asterisk (*) appears, enter a value in the range indicated in brackets under CONTROL CONTENTS.

) in the table is a numerical value, it may write anything.

• As long as that from which the parameter (

LC-30HV4U LC-30HV4D

DIMENSIONS

AVC System

1423/64(365)

/64(430)

/64 (95) 3

927/32(250)713/64(183)

75/64(180)

Unit: inch/(mm)

/16 (5)

LC-30HV4U LC-30HV4D

Display

2129/64(545)

45/8(117.5) 45/8(117.5)

255/16(643)

305/32(766)

(385)

Unit: inch/(mm)

(79)

(84.5)

12(305)

321/64(84.5)

(497)

(608)

(364)

2129/64(545)

397/16(1002)

(111)

12 (305)

LC-30HV4U LC-30HV4D

REMOVING OF MAJOR PARTS

Ë Ë

Ë AVC System

Ë Ë

1. Remove the five top cabinet retaining screws and slide the top cabinet backward to remove it.

2. Remove the four side cover retaining screws on both the right and left sides and slide the side covers backward to remove them.

3. Remove the one front panel retaining screws and remove the front panel.

4. Remove the five bottom cabinet retaining screws and slide the bottom panel backward to remove it.

5. Remove the four screws securing the main PWB angle and remove the angle upward.

6. Remove the four screws securing the main PWB to the angle and remove the main PWB.

Side Cover (L)

Top Cabinet

Side Cover (R)

Main PWB angle

Main PWB

Front panel

Bottom panel

7. Remove the system/control terminal retaining: 7-1. Remove the four hex head screws securing the terminals of the system and control cables (white). 7-2. Remove the two screws securing the terminal of the system cable (gray). 7-3. Remove the two rear chassis retaining screws.

8. Remove the PC I/F and SR units: 8-1. Remove the six PC I/F top shield retaining screws and remove the shield. 8-2. Remove the six PC I/F unit retaining screws and remove the unit. 8-3. Remove the two PC I/F bottom angle retaining screws and remove the angle. 8-4. Remove the two SR unit retaining screws and remove the SR unit.

9. Remove the rear chassis. 9-1. Remove the three tuner nuts. 9-2. Remove the 10 rear cabinet retaining screws and remove the rear cabinet.

10. Remove the three power unit retaining screws and remove the power unit.

8-1

8-2

PC I/F Top Shield

Rear cabinet

LC-30HV4U LC-30HV4D

PC I/F unit

SR unit

8-4

8-3

PC I/F Bottom Angle

7-1

7-2

7-3

9-2

9-1

Power unit

LC-30HV4U LC-30HV4D

11. Remove the AV unit: 11-1. Remove the five AV unit retaining screws and remove the AV unit. 11-2. Remove the three AV unit angle retaining screws and remove the angle.

12. Remove the fan: 12-1. Remove the two cooling fan retaining screws and remove the cooling fan.

13. Remove unit from the front chassis: 13-1. Remove the two hex head screws and four screws securing the front shield to the front chassis and

remove the front shield.

13-2. Remove the four screws securing the front unit and remove the unit.

11-1

AV unit

AV unit angle

11-2

Cooling Fan

12-1

13-1

Front Shield

13-2

Front unit

Ë Ë

Ë Display

Ë Ë

1. Take off bottom terminal cover.

2. Take off the speaker by removing 4 screws and disconnecting speaker terminals.

3. Take off the table stand by removing 6 screws.

4. Take off the rear cabinet by removing 18 screws and releasing the front cabinet's 6 hooks.

Speaker

Rear Cabinet

LC-30HV4U LC-30HV4D

Speaker

Terminal Cover

Table Stand

5. Take off the operation cover assembly by removing 2 screws and detaching the connector.

6. Take off the center angle by removing 8 screws and disconnecting 1 lead wire from the fan.

Operation Cover Ass'y

P131

P130

P2103

Center Angle

LC-30HV4U LC-30HV4D

7. Take off the LCD control PWB by detaching 7 connectors and removing 4 screws.

8. Take off the R/C, LED PWB by detaching one connector and removing 2 screws.

9. Take off the speaker (L) PWB by detaching one connector and removing one screw.

10.Take off the speaker (R) PWB by detaching one connector and removing one screw.

Speaker(L) PWB

P201

R/C,LED PWB

SC4502

SC4551

SC491

LCD control

SC4503

Main PWB

Speaker(R) PWB

P202

11.Take off the main PWB by detaching 8 connectors and removing 4 screws.

12.Take off the audio PWB assembly by detaching 3 connectors and removing 4 screws.

13.Take off the 2 reinforcement angles by removing 3 screws from each angle.

14.Detach each connector.

Inverter-1 PWB

Inverter GND PWB

14 14

P6901

P6902

P6903

P6904

P6905

P6906

P6907

Audio PWB

P3804

P3802

P3801

P2106 SC2001

P2002 P2003

P2104

Main PWB

CN4

P2101

P2102

CN5

CN3

Power Unit

CN7

P6565

P6564

P6551

P6553

P6555

P6558

P6560

P6562

Reinforcement angle

Inverter 2 PWB

15.Take off the inverter GND PWB by removing 2 screws.

16.Take off the power PWB by removing 7 screws. Remove insulation sheet.

17.Take off the inverter-1 PWB by removing 3 screws.

18.Take off the inverter-2 PWB by removing 3 screws

19.Take off the 4 reinforcement angles by removing 2 screws from each angle.

20.Take off the 2 reinforcement angles by removing 3 screws from each angle.

21.Take off the chassis frame by removing 2 screws.

22.Take off the LCD panel assembly by removing 2 screws.

Inverter GND PWB

LC-30HV4U LC-30HV4D

Chassis Frame

Inverter-1 PWB

Inverter-2 PWB

Power Unit

LC-30HV4U LC-30HV4D

23.Take off the LCD panel with panel shield by removing 4 screws.

24.Take off D-BEF sheet, prism sheet and diffusion sheet. Take off ITO sheet and diffusion panel by removing 2

screws.

25.Take off the panel shield by removing 6 screws and 2 in the center.

LCD Panel

Diffusion Sheet

Prism Sheet

D-BEF Sheet

Lamp

Panel Shield

Diffusion Panel

ITO Sheet

LC-30HV4U LC-30HV4D

ADJUSTMENT PROCEDURES (AVC SYSTEM)

Preparation for adjustment

1. The product has been adjusted and optimized in the factory. If the product needs to be readjusted for some reason, e.g., after parts replacement, follow the instructions shown below.

2. Control parameter values set in the in-process adjustment mode has been stored in the corresponding registers. When the product is readjusted, the contents of the registers are changed. Bef ore readjustment, f actory settings should be noted in case the contents of registers require to be restored.

3. Use a stabilized AC power supply.

4. To rewrite a program, you should note the items ("OSD MENU" and "Adjustment Values") you want to change and initialize EEPROM, and then rewrite the changes into EEPROM.

How to enter the in-process adjustment mode

CAUTION: Exercise great care to hide the procedure in entering the in-process adjustment mode from the customer. Inadvertent setting changes in this mode may cause a fatal error resulting in a program being unrecoverable.

1. Entering the in-process adjustment mode: Connect the system cable between the display and AVC system. Turn off the "MAIN POWER" button of the display once. Turn on the main power while holding down the "INPUT" button and the "VOL (-)" button of the Display simultaneously. The system will be activated. ~If you see multiple lines of blue characters on the display, you are in the in-process adjustment mode. If not

(the normal activation screen opens), retry.

2. Accessing the inspection process mode: After activation of the system, make adjustments according to the instructions indicated on the process adjustment OSD menu screen. Move to the General Process Adjustment (AVC System Section Process).

3. Restoring factory settings: (At the time of "INDUSTRY INIT" execution, please wait for about 30 seconds until /// disappears.) When the "INDUSTRY INIT" button is selected after activation of the system, factory channel setting remains unchanged. After the system exits from the in-process adjustment mode. Changes made by the user will default to factory settings. Note that channel setting is also initialized.

4. Exiting from the in-process adjustment mode: Unplug the power cable while the system is in the in-process adjustment mode to exit from the mode. Take care not to press the "POWER" button on the remote controller or the AVC system after using factory settings to run the system.

5. OSD menu screen and menu items during manual adjustment:

~The layout and men u items of the OSD menu screen ma y some what vary depending on the program versions . ~Just rewriting a program does not cause settings to be "initial values". (Preparation for adjustment)

1. Button operation in the in-process adjustment mode

Cursor Up Move to the next page Cursor Down Back to the previous page Volume (+) Increase the setting by 1 Volume (-) Decrease the setting by 1 SET/ENTER Execute the function Cursor Left Increase the setting by 10 Cursor Right Decrease the setting by 10 Channel (Up) Move the cursor up Channel (Down) Move the cursor down INPUT Change input (Tuner -> Input 1 -> Input 2 ->Input 3 -> Input 4 -> PC ->)

LC-30HV4U LC-30HV4D

2. In-process adjustment screen layout

Page Program version Color system

TUNER A NO SIG1/15 HDCP:ON

CENTER Version OSD Version CVIC Version

∫ ∫ ∫ ∫ ∫ ∫ ∫ ∫

2001 06 21A XXXXXXXX XXXXXXXX

∫ ∫ ∫ ∫

HDCPSource of input

6. Loading the backup data and setting HDCP when the PC I/F unit is replaced Nearly all data including factory settings, user settings, and channel setting is stored in the PC I/F unit. The product comes with EEPROM (IC1506) on the Main Unit in case the PC I/F unit is replaced; original data backed up on the EEPROM can be loaded to the new PC I/F unit. ∫ How to load the backup data

Select EEPROM RECOVER in the OSD menu (page 7/15) and turn the "Volume" key ON; then press "SET/ ENTER".

∫ How to set HDCP

After completion of adjustments, select KEY WRITE "ON" in the OSD men u (page 1/15) for man ual adjustment and turn the "Volume" key ON; then press "SET/ENTER".

1) Analog adjustment

TP4TP4TP4

PC I/F unit

CN9CN9

(1) V oltage adjustment

Item Adjusting conditions/points Adjusting procedure

1 3.3 V Adjustment Page: 2 • Connect a DC voltmeter to TP4 on the PC I/F unit.

Location: TP4

Move the cursor to and (–)

keys to adjust the voltage to 3.30 ± 0.01 V.

"Ë

+Badj.3.3V" and use

LC-30HV4U LC-30HV4D

"VOL" (

2 1.8 V Adjustment Page: 2 • After adjustment to 3.3 V, move the cursor to the

Location: Pin (6) of CN9 "Ë+Badj.1.8V" line and press the "ENTER" key on

the remote controller. Adjustment will be made automatically. If "ERR" appears, adjust the voltage at pin (6) of CN9 on the PC I/F unit to 1.90 ± 0.01 V.

LC-30HV4U LC-30HV4D

(2) Tuner adjustment

Item Adjusting conditions/points Adjusting procedure

1 Signal setting Signal: • Use a signal generator to provide the tuner with a

NTSC RF Signal RF signal of 193.25 MHz on the split field color bar. (Split field color bar) Input terminals:

•

The color saturation of the color bar must be 75%.

A 100% white area must be included. ANT-A, ANT-B • Make sure the 100% white area (synchronized) US channel 10 received shows 2.00 Vp-p when the color bar opens in

video mode. If not, adjust the signal generator.

2 Tuner level Adjustment Page: 4 1.Provide the above RF signal to ANT-A and adjust

Locations: TP1101, TP1102

"TUNER DAC ADJ" so that the tuner output is

1.0 ± 0.02 Vp-p at TP1101 when US channel 10 is

received.

1.0Vp-p

2.Provide the above RF signal to ANT-B and adjust "TUNER B DAC ADJ" so that the tuner output is

1.0 ± 0.02 Vp-p at TP1102 when US channel 10 is received.

1.0Vp-p

TP1101

TP1102

LC-30HV4U

0.7Vp-p

LC-30HV4D

(3) NTSC signal adjustment

Item Adjusting conditions/points Adjusting procedure

1 Signal setting Signal: • Use a signal generator to provide the split field color

NTSC bar to the video image input pin of video input 1. Split field color bar

•

The color saturation of the color bar must be 75%. A

100% white area must be included.

• Make sure the 100% white area (synchronized) shows 2.00 Vp-p when the color bar opens in video mode. If not, adjust the signal generator.

2 MAIN N358 Y Page: 3 Adjust "MAIN N358 Y CONTRAST" so that the 100%

CONTRAST Adjustment Signal pin: INPUT1, video white area shows 0.7 ± 0.01 Vp-p at pin (1) of P801.

Location: Pin (1) of P801

P801P801

212

3 MAIN N358 COLOR Page: 3 Adjust "MAIN N358 COLOR GAIN" so that the width

GAIN Adjustment Location: Pin (3) of P801 shown below is 0.525 ± 0.01 Vp-p at pin (3) of P801.

0.53Vp-p

LC-30HV4U

Smoothed

0.53Vp-p

1.13Vp-p

Smoothed

LC-30HV4D

Item Adjusting conditions/points Adjusting procedure

4 MAIN N358 TINT Page: 3 Adjust "MAIN N358 TINT" so that the bottom edges

Adjustment Location: Pin (3) of P801 of the waveform at pin (3) of P801 are in line with

each other as shown below.

5 MAIN N358 Cr GAIN Page: 3 Adjust "MAIN N358 CR GAIN" so that the width

Adjustment Location: Pin (5) of P801 shown below is 0.525 ± 0.01 Vp-p at pin (5) of P801.

6 MAIN N358 Page: 3 Adjust "MAIN CONTRAST 15K" so that the

CONTRAST Adjustment Location: Pin (7) of P801 difference between black and while peaks is

0.95 ± 0.02 V at pin (7) of P801.

7 Two-screen setting Press the TWIN PICT- Make the adjustment-purpose special two-screen

N358 Cr GAIN URE key. setting.

(The same images should appear on the main and sub screens.)

8 SUB N358 Y Page: 4 Adjust "SUB N358 Y CONTRAST" so that the

CONTRAST Adjustment Location: Pin (9) of P801 difference between the black and white peaks is

1.5 ± 0.02 Vp-p at pin (9) of P801.

1.5Vp-p

9 SUB N358 COLOR Page: 4 Adjust "SUB N358 COLOR GAIN" so that the black

GAIN Adjustment Location: Pin (11) of P801 peak is 1.125 ± 0.01 Vp-p at pin (11) of P801.

10 SUB N358 TINT Page: 4 Adjust "SUB N358 TINT" so that the bottom edges

Adjustment Location: Pin (11) of P801 of the waveform at pin (11) of P801 are in line with

each other as shown below.

LC-30HV4U

0.7Vp-p

0.70Vp-p

0.7Vp-p

LC-30HV4D

(4) Component 15 kHz signal adjustment

Item Adjusting conditions/points Adjusting procedure

1 Signal setting Signal: Provide the 100% color bar source of component 15k

N358 TINT Component 15k to the component input pin of video input 1.

100% color bar

Signal pin: INPUT1 COMPONENT

2 MAIN COMPONENT Page: 5 Adjust "COMP 15K Y CONTRAST" so that

15 kHz Y CONTRAST Location: Pin (1) of P801 0.70 ± 0.01 Vp-p is achieved at pin (1) of P801. Adjustment

3 MAIN COMPONENT Page: 5 Adjust "COMP 15K COLOR GAIN" so that the width

15 kHz COLOR GAIN Location: Pin (3) of P801 shown below is 0.70 ± 0.01 Vp-p at pin (3) of P801. Adjustment

4 MAIN COMPONENT Page: 5 Adjust "COMP 15K CR GAIN" so that the width

15 kHz Cr GAIN Location: Pin (5) of P801 shown below is 0.70 ± 0.01 Vp-p at pin (5) of P801. Adjustment

(5) Component HDTV signal adjustment

Item Adjusting conditions/points Adjusting procedure

1 Signal setting Signal: Provide the component HDTV source of the 100%

Component HDTV color bar to the component pin of video input 1. 100% color bar

Signal pin: INPUT1 COMPONENT

2 MAIN COMPONENT Page: 6 Adjust "COMP HDTV" so that the difference between

HDTV CONTRAST Location: Pin (9) of P801 the black and while peaks is 0.95 ± 0.02 Vp-p at pin Adjustment (9) of P801.

LC-30HV4U LC-30HV4D

2) Digital white balance adjustment (1) NTSC signal adjustment

Item Adjusting conditions Adjusting procedure

1 Setting

N358 R cutoff

N358 G cutoff

N358 B cutoff

N358 R drive

N358 G drive

N358 B drive

8 Convergence

1. Provide the adjusting N358 signal (adjustment conditions) to the video image input pin of video input 1. Page: 8

20% white window pattern

It is recommended that a

pattern without chroma and burst be used.

80% white window pattern

It is recommended that a

pattern without chroma and burst be used.

1. Press "1" on the remote controller in the process adjustment mode.

2. Adjust "N358 R CUTOFF" so that the luminance level of the window pattern is maximized.

1. Press "2" on the remote controller in the process adjustment mode.

2. Adjust N358 G CUTOFF so that the luminance level of the window pattern is maximized.

1. Press "3" on the remote controller in the process adjustment mode.

2. Adjust "N358 B CUTOFF" so that the luminance level of the window pattern is maximized.

1. Press "4" on the remote controller in the process adjustment mode.

2. Adjust "N358 R DRIVE" so that the luminance level of the window pattern is maximized.

1. Press "5" on the remote controller in the process adjustment mode.

2. Adjust "N358 G DRIVE" so that the luminance level of the window pattern is maximized.

1. Press "6" on the remote controller in the process adjustment mode.

2. Adjust "N358 B DRIVE" so that the luminance level of the window pattern is maximized.

Repeat the above adjustments until convergence is reached (Adjust cutoff, drive, cutoff, drive and so on.)

(2) Component 15 kHz signal adjustment

Item Adjusting conditions Adjusting procedure

1 Setting

Component 15 kHz R cutoff

Component 15 kHz

1. Provide the adjusting 525i component signal (adjustment conditions) to the component

20% white window pattern

G cutoff

Component 15 kHz

B cutoff

Component 15 kHz

Simply press Y.

80% white window pattern

R drive

Component 15 kHz

G drive

Component 15 kHz

B drive

Simply press Y.

video input pin of video 1. Page: 9

1. Press "1" on the remote controller in the process adjustment mode.

2. Adjust "COMP 15K R CUTOFF" so that the luminance level of the window pattern is maximized.

1. Press "2" on the remote controller in the process adjustment mode.

2. Adjust "COMP 15K G CUTOFF" so that the luminance level of the window pattern is maximized.

1. Press "3" on the remote controller in the process adjustment mode.

2. Adjust "COMP 15K B CUTOFF" so that the luminance level of the window pattern is maximized.

1. Press "4" on the remote controller in the process adjustment mode.

2. Adjust "COMP 15K R DRIVE" so that the luminance level of the window pattern is maximized.

1. Press "5" on the remote controller in the process adjustment mode.

2. Adjust "COMP 15K G DRIVE" so that the luminance level of the window pattern is maximized.

1. Press "6" on the remote controller in the process adjustment mode.

2. Adjust "COMP 15K B DRIVE" so that the luminance level of the window pattern is maximized.

8 Convergence

Repeat the above adjustments until convergence is reached (Adjust cutoff, drive, cutoff, drive and so on.)

(3) Component HDTV signal adjustment

Item Adjusting conditions Adjusting procedure

1 Setting

Component HDTV R cutoff

Component HDTVG

1. Provide the adjusting 1080i component signal (adjustment conditions) to the component

20% white window pattern

cutoff

Component HDTV

B cutoff

Component HDTV

80% white window pattern

R drive

Component HDTV

G drive

Component HDTV

B drive

vide input pin of video 1. Page: 10

1. Press "1" on the remote controller in the process

2. Adjust "COMP HDTV R CUTOFF" so that the

1. Press "2" on the remote controller in the process

2. Adjust "COMP 15K G CUTOFF" so that the luminance

1. Press "3" on the remote controller in the process

Simply press Y.

2. Adjust "COMP HDTV B CUTOFF" so that the luminance

1. Press "4" on the remote controller in the process

2. Adjust "COMP HDTV R DRIVE" so that the luminance

1. Press "5" on the remote controller in the process

2. Adjust "COMP HDTV G DRIVE" so that the luminance

1. Press "6" on the remote controller in the process

2. Adjust "COMP HDTV B DRIVE" so that the luminance

LC-30HV4U LC-30HV4D

adjustment mode. luminance level of the window pattern is maximized.

adjustment mode. level of the window pattern is maximized.

8 Convergence

Repeat the above adjustments until convergence is reached (Adjust cutoff, drive, cutoff, drive and so on.)

LC-30HV4U LC-30HV4D

4. Factory setting

Item Adjusting conditions Adjusting procedure

INDUSTRY INIT

Page: 1

1. Move the cursor to the "INDUSTRY INIT" line, use the VOL key to turn the system on and press the ENTER key. Factory setting is complete when the process adjustment menu disappears and the system enters the TUNER input mode.

~Make sure HDCP is on. If it is off, the system cannot

exit from the process adjustment mode.

2. Turn off the AVC AC power.

Notes:

1) Perform factory setting as the latest task. Do not turn on the power after factory setting.

2) Turn the AVC’s AC power off to turn off the system. Never turn off the power during factory setting.

3) After completion of factory setting, the system will exit from the process adjustment mode automatically. If not so, HDCP has been set to off. Check HDCP setting.

4) Factory setting results in initializations of all user settings including channel setting. (Items set in process adjustment mode are not initialized). Items initialized by factory setting include the following:

• User settings (menu)

• Channel data (including broadcast frequencies)

• Password

• Operation time

• Auto installation flag

• Optimal manufacturer settings

• VCHIP block setting

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