SHARP LC-30HV4M Service Manual

LC-30HV4M LC-30HV4H

SERVICE MANUAL

S53B1LC30HV4M

LCD COLOUR TELEVISION

LC-30HV4M

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

Page

» IMPORTANT SERVICE SAFETY PRECAUTION .....2

» SPECIFICATIONS................................................4

» OPERATION MANUAL ........................................ 5

» DIMENSIONS ....................................................11

» REMOVING OF MAJOR PARTS........................13

ADJUSTMENT PROCEDURES (AVC System) ..

» UPGRADING INSTALLED PROGRAMS ...........28

» ADJUSTMENT PROCEDURES (Display) .........30

» MAJOR IC INFORMATIONS..............................34

» TROUBLE SHOOTING TABLE ..........................54

» CHASSIS LAYOUT.............................................64

» SYSTEM BLOCK DIAGRAM (AVC System) ......68

» SIGNAL FLOW BLOCK DIAGRAM

(AVC System).....................................................70

» POWER SYSTEM BLOCK DIAGRAM

(AVC System).....................................................72

» PC I/F BLOCK DIAGRAM (AVC System) ..........74

» SIGNAL BLOCK DIAGRAM (Display)................ 76

» POWER UNIT BLOCK DIAGRAM (Display) ...... 78

» OVERALL WIRING DIAGRAM (AVC System) ... 80

» OVERALL WIRING DIAGRAM (Display)............ 84

» DESCRIPTION OF SCHEMATIC DIAGRAM .....86

» SCHEMATIC DIAGRAM..................................... 87

» PRINTED WIRING BOARD ASSEMBLIES...... 163

» PARTS LIST .....................................................207

» PACKING OF THE SET ................................... 249

LC-30HV4H

Page

SHARP CORPORATION

LC-30HV4M

LC-30HV4H

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 ONLY WITH SAME TYPE FUSE. AVC SIDE: F701 (T2AL, 250V). LCD SIDE: F1 (T3.15AL, 250V), F3 (T2AL, 250V), F6551, F6552, F6553, F6554, F6555, F6556 (T2.5AL, 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 50k 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 ha ving with 5000 ohm per v olt,

or higher, sensitivity or measure the A C v oltage drop across the resisor.

» 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 35V peak (this corresponds to 0.7 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

50k ohm

10W

0.15 µF

TEST PROBE

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

SAFETY NOTICE

Many electrical and mechanical parts in LCD colour television have special safety-related characteristics. These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarily increased by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features are identified b y “ å”

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

and shaded areas in the

Replacement Parts List

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.

and

LC-30HV4M LC-30HV4H

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 soldening 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 wettabillty, 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 allo y ed 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 f0.3mm 250g(1roll) BL ZHNDAi126500E J f0.6mm 500g(1roll) BK ZHNDAi12801KE J f1.0mm 1kg(1roll) BM

LC-30HV4M LC-30HV4H

SPECIFICATIONS

Item 30 LCD COLOUR TV, Model:LC-30HV4H/M

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

Video Colour System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60 TV

Function

Brightness 430 cd/m Backlight 60,000 hours (at Save 1) Viewing angles H : 170° V : 170° Audio amplifier 10W Speakers Ø 8 cm 2pcs Terminals AV in, S-VIDEO in, COMPONENT VIDEO in

OSD language

TV-standard (CCIR) Receiving

Channel

TV-Tuning System STEREO/BILINGUAL NICAM/IGR

AVC System

VHF/UHF CATV

Rear INPUT 1

INPUT 2 INPUT 3 ANTENNA 75

MONITOR OUTPUT DC OUTPUT DC 6.5V 7W MAX

Front

INPUT 4 AV in, S-VIDEO PC

Headphones

PAL: B/G, D/K, I SECAM: B/G, D/K NTSC: M

44.25-863.25 MHz Hyper-band, S1–S41ch Auto Preset 99 ch, Auto Label, Auto Sort

AV in, S-VIDEO in AV in, S-VIDEO in, COMPONENT VIDEO in

Din Type

Audio (Variable, Fixed), S-VIDEO out, VIDEO out

15 Pin mini D-Sub, Audio in (Ø 3.5mm jack) Ø 3.5mm jack English/Chinese/Arabic

768 3 dots)

Power Requirement

Power Consumption

Weight

Accessories Operation manual, Remote control unit (

AVC System Display AVC System Display

AC 110–240 V, 50/60 Hz 31 W (0.8W Standby) 104 W (0.6W Standby) (LC-30HV4H)/105W (0.7W Standby) (LC-30HV4M)

5.4 kg (w/o stand), 5.5 kg (with stand)

15.8 kg (w/o stand), 19.7 kg (with stand)

2), LR6 (“AA” size) Alkaline battery ( 2), Stand unit ( 1), Cable clamp

(

1), Antenna cable ( 1)

(

Specifications are subject to change without prior notice.

1), System cable ( 1), AC cord

OPERATION MANUAL

Part names

OPC indicator*

STANDBY/ON indicator

(MAIN POWER)

OPC sensor

Display

(STANDBY/ON) button

INPUT

button

buttons

(

)

CH buttons (CH

)

Remote control sensor

*OPC: Optical Picture Control

Sleep timer

indicator

CLEAR*

POWER button

INPUT 4 terminal (S-VIDEO)

PC INPUT terminal (AUDIO)

INPUT 4 terminals (AUDIO)

PC INPUT terminal

(ANALOG RGB)

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

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.

• AV MODE resets to USER.

• TV channel resets to channel 1.

• Dual screen resets to normal.

• Audio setting initialises.

• SRS resets to OFF.

• Image position is initialised.

NOTE

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

• Pressing CLEAR will not delete channel preset or password. See page 56 for clearing the password when you know it.

See page 66 for initialising to the factory preset values when you forget your password.

AVC System

STANDBY/ON indicator

INPUT 4 terminal (VIDEO)

(How to open the door)

Front view

Rear view

Headphone

(When connecting headphones,

the sound from the speakers is

muted.)

ANTENNA INPUT

terminal

INPUT 3

terminal

(S-VIDEO)

INPUT 3

terminal

(VIDEO)

INPUT 3

COMPONENT

VIDEO terminals

(Y, P

, P

)

INPUT 3 terminals

(AUDIO)

INPUT 1 terminal

(S-VIDEO)

INPUT 1 terminal

(VIDEO)

INPUT 1 COMPONENT

VIDEO terminals (Y, P

, P

)

INPUT 1 terminals

(AUDIO)

RS-232C terminal

DISPLAY OUTPUT 1

terminal

AC INPUT terminalDISPLAY OUTPUT 2

terminal

INPUT 2 terminals (AUDIO)

INPUT 2 terminal

(VIDEO)

INPUT 2 terminal (S-VIDEO)

MONITOR OUTPUT terminals (AUDIO)

MONITOR OUTPUT terminal (VIDEO)

MONITOR OUTPUT terminal

(S-VIDEO)

DC OUTPUT terminal (Terminal for

expanded functionality in the near future.)

LC-30HV4M LC-30HV4H

LC-30HV4M

Part names

1 POWER

To switch the power on and off.

2 FREEZE

Change the still image mode.

3 P&P

Set the dual picture mode. Press P&P again to return to normal view.

4WIDE

Change the wide image mode.

5 AV MODE

Select a video setting. AV MODE (STANDARD, DYNAMIC, MOVIE,

GAME, USER) PC MODE (STANDARD, USER)

6 MPX

Select the sound multiplex mode.

7 SURROUND*

Select SRS and FOCUS sound system.

(FLASHBACK)

Press to return to the previous channel in normal viewing mode.

(VOLUME)

Set the volume.

10 MENU

Display the menu screen.

11 DISPLAY

Display the channel information.

12 TV/VIDEO/PC

Select an input source. (TV, INPUT 1, INPUT 2, INPUT 3, INPUT 4,

PC)

13 SLEEP

Set the SLEEP TIMER.

(MUTE)

Mute the sound.

15 0 – 9

Set the channel.

(Digit for channel select)

Change the digits of the selected TV channel.

17 CH

/CH

Select the channel.

18 RETURN

Return to the previous menu screen.

19 ENTER

Execute a command.

Return to the initial image position after moving with

(Cursor)

Select a desired item on the setting screen.

Move the picture on the screen.

Remote control unit

NOTE

• When using the remote control unit, point it

at the Display.

is a trademark of SRS Labs, Inc.

FOCUS technology is incorporated under

license from SRS Labs, Inc.

Preparation

Where to place the System

“System” means the Display and AVC System. First select the location where to place the System.

Selecting the location of the System

• Select a place with no direct sunlight and good ventilation.

• The Display and the AVC System are connected by the system cable.

(See page 6 for details.)

Setting the System in place

Handling the Display

CAUTION

• Do not remove the stand from the Display unless using an

optional bracket to mount it.

• When moving, put your hands on the Display, but never on the

Display speakers.

• Keep enough space above and behind the Display.

Handling the AVC System

CAUTION

• Do not put a VCR or other device on the AVC System.

• Keep enough space above and on the sides of the AVC System.

• Do not block the ventilation openings on the top and left side,

and the exhaust fan on the right side.

• Do not spread a thick cloth beneath the AVC System, or cover it

with one, as this can cause overheating and result in

malfunction.

System cable

Display

AVC System

CAUTION

Adjust the screen with both

hands. Put one hand on the

Display and tilt the screen

while steadying the stand

with your other hand.

You can adjust the screen

vertically up to 10 degrees

forward or 8 degrees back-

ward, or rotate 10 degrees

horizontally.

5 cm or more

on both sides

Keep enough space

There is an exhaust fan

on the right side.

10 cm

or more

LC-30HV4H

AC INPUT

110V–240V

DISPLAY INPUT2 DISPLAY INPUT1

System cable

AVC System (rear view)

AC cord

Display (rear view)

AC cord

System cable

(GREY)

Connect the plug firmly

until the hooks on both

sides click.

(WHITE)

Connect the plug into

the terminal and secure

it by tightening the

thumb screws.

(GREY) (WHITE)

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.

Preparation

Press down the two

upper hooks to remove

the cover toward you.

Connecting the system cable and the AC cord to the Display

Removing the terminal cover

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.

Attaching the clamp to the leg of the Display

Bundling the cables with the clamp

Closing the terminal cover

Display (rear view)

Cables come out from

the small opening.

LC-30HV4M LC-30HV4H

LC-30HV4M

Using external equipment

Display

(rear view)

HDTV tuner

AVC System

(rear view)

AVC System

(front view)

AV Receiver

(Built-in Tuner Amp)

VCR

Game console/Camcorder

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

game console and camcorder. To view external source images, select the input source from TV/VIDEO/PC on

the remote control unit or INPUT on the Display.

CAUTION

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

console, camcorder or other external equipment.

NOTE

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

DVD player

Using external equipment

Removing the speakers

This unit has detachable type speakers.

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

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

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

being damaged.

CAUTION

• The speaker terminals on the Display is only for the attached speakers. Do not connect any third party plug or speaker to

the terminal.

• Insert the speaker plug completely into the terminal.

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

NOTE

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

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

123

Unfasten the screws used to

secure the speakers in place.

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.)

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.

Speaker

plug

LC-30HV4H

Appendix

640

400

720

400

640

480

800

600

832

624

1024

768

1280

768

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

1280

1024 60 Hz

PC compatibility chart

Remarks

Macintosh 13" (67 Hz)

Macintosh 16"

Macintosh 19"

Resolution Frequency

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.

RS-232C port specifications

Return codeCommand 4-digits Parameter 4-digits

PC Control of the System

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

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

settings can be made, enabling automatic programmed playing.

•

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

connections.

NOTE

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

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:

Baud rate:

Parity bit:

Data length:

Stop bit:

Flow control:

9,600 bps

8 bits

None

1 bit

None

Command format

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.

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

the next command.

Eight ASCII codes

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

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

Parameter

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

parameter.)

When the input parameter is not within an adjustable range,

“ERR” r

eturns. (Refer to “Response code format”.)

No problem to input any numerical value for

“x” on the table.

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

C1 C2 C3 C4 P1 P2 P3 P4

0055

100

– 30

0009

????

LC-30HV4M LC-30HV4H

LC-30HV4M

Commands

POWER OFF (STANDBY)

INPUT SWITCHING (TOGGLE)

TV (CHANNEL FIXED)

TV (CHANNEL SELECTION) (1

– 99)

INPUT1 – 4 (1 – 4)

INPUT1 (AUTO)

INPUT1 (COMPONENT)

INPUT1 (S-VIDEO)

INPUT1 (VIDEO)

INPUT2 (AUTO)

INPUT2 (S-VIDEO)

INPUT2 (VIDEO)

INPUT3 (AUTO)

INPUT3 (COMPONENT)

INPUT3 (S-VIDEO)

INPUT3 (VIDEO)

INPUT4 (AUTO)

INPUT4 (S-VIDEO)

INPUT4 (VIDEO)

TOGGLE

STANDARD

DYNAMIC

MOVIE

GAME

USER

VOLUME (0 – 60)

H-POSITION (AV) (10– 10)

H-POSITION (PC) (90– 90)

V-POSITION (AV) (30– 30)

V-POSITION (PC) (60– 60)

CLOCK ( 90 – 90)

PHASE ( 20 – 20)

POWER SETTING

INPUT SELECTION A

INPUT SELECTION B

AV MODE

SELECTION

VOLUME

POSITION

CONTROL ITEM COMMAND PARAMETER

CONTROL

CONTENTS

TOGGLE

NORMAL

FULL 14:9

ZOOM 14:9

PANORAMA

FULL

CINEMA 16:9

CINEMA 14:9

NORMAL

FULL

DOT BY DOT

CINEMA

TOGGLE

OFF

SRS

FOCUS

SRS FOCUS

DUAL SCREEN OFF

DUAL SCREEN ON

DIRECT CHANNEL (1

– 99)

CHANNEL UP

CHANNEL DOWN

WIDE MODE

SURROUND

DUAL SCREEN

CHANNEL

CONTROL ITEM COMMAND PARAMETER

CONTROL

CONTENTS

Appendix

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.

Return code (0DH)

Response code format

Normal response

Problem response (communication error or incorrect command)

Return code (0DH)

ERR

Basic adjustment settings

AV input mode menu items

List of AV menu items to help you with

operations

Contrast

Brightness

Colour

Tint

Sharpness

Advanced

C.M.S.

Colour Temp

Black

Monochrome

Film Mode

I/P Setting

DNR

Picture

Power Save

No Signal Off

No Operation Off

Auto Installation

Programme Setup

Child Lock

Position

Full Mode

Rotate

Language

Treble

Bass

Balance

Surround

Input Select

Audio Out

Cool Climate

Colour System

Audio

Power Control

Setup

Option

PC input mode menu items

List of PC menu items to help you with

operations

Contrast

Brightness

Red

Green

Blue

C.M.S.

Picture

Power Save

Power Management

Input Signal

Auto Sync.

Fine Sync.

Rotate

Language

Audio

Power Control

Setup

Option

Treble

Bass

Balance

Surround

Audio Out

Cool Climate

LC-30HV4H

DIMENSIONS

365 430

250

180

183

Unit: mm

AVC System

LC-30HV4M LC-30HV4H

Display

545

117.5 117.5

643

766

Unit: mm

84.5

305608

84.5

497

545

1002

385

364

111

305

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.

LC-30HV4M LC-30HV4H

Side Cover (L)

Top Cabinet

Side Cover (R)

Main PWB angle

Main PWB

Front panel

Bottom panel

LC-30HV4M LC-30HV4H

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 one 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

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

11. Remove the AV unit:

Cooling Fan

12-1

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

LC-30HV4M LC-30HV4H

13-1

Front Shield

13-2

Front unit

LC-30HV4M LC-30HV4H

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

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

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.

LC-30HV4M LC-30HV4H

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

LC-30HV4M LC-30HV4H

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

Chassis Frame

Inverter-1 PWB

Inverter-2 PWB

Power Unit

LC-30HV4M LC-30HV4H

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-30HV4M LC-30HV4H

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. Connect the AC cord, respectively. An AVC System is set as a standby state, and tur n off the "MAIN POWER" button of the Display. Turn on the main power while holding down the "Input" button and the "VOL (-)" button of the Display simultaneously. (Be continuing pushing "INPUT" and "VOL (-)" buttons until a display comes out.) 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 somewhat v ary 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 (Up) Increase the setting by 1 Volume (Down) Decrease the setting by 1 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-30HV4M

CENTER Version OSD Version CVIC Version TTXP Version

∫ ∫ ∫ ∫ ∫ ∫ ∫ ∫

2001 06 21A XXXXXXXX XXXXXXXX XXXXXXXX

∫ ∫ ∫ ∫

Page Program version Color system

TUNER NO SIG1/19 HDCP:ON ASIA ASIA

Main unit AV unitHDCPSource of input

LC-30HV4H

2. In-process adjustment screen layout

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 19/19) and turn the "Volume" key ON; then press "ENTER".

∫ How to set HDCP

After completion of adjustments, select KEY WRITE "ON" in the OSD men u (page 1/19) for manual adjustment

LC-30HV4M LC-30HV4H

1) Analog adjustment

(1) V oltage adjustment

Item Adjusting conditions/points Adjusting procedure

1 3.3 V Adjustment Page: 1 » 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

2 1.8 V Adjustment Page: 1 » 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.

(2) Tuner adjustment

Item Adjusting conditions/points Adjusting procedure

1 Signal setting Signal: 1.Set the colour system to PAL.

RF 2.Select the PAL source. Split field color bar

» Split colour bar signal (100% white, colour 100% Input pins: modulation) ANT Input Terminal » With the video output open, make sure the voltage

is 2.0Vp-p (between sync level and 100% white

level).

» If the voltage is not as specified, readjust the signal

generator.

"VOL" (

2 Tuner level Adjustment Connect the oscilloscope Provide the above RF signal to ANT and adjust

to TP1101.

"TUNER A DAC ADJ" so that the tuner output is

1.0 ± 0.02 Vp-p at TP1101.

1.0Vp-p

(3) PAL signal adjustment

Adjustment items Adjustment conditions Adjustment procedures

1 Setup 1. Set colour system to PAL.

INPUT1-Video

2. Select PAL source. 100% colour bar signal including 100% white, such as split field colour bar.

LC-30HV4M LC-30HV4H

2 MAIN PAL Y

CONTRAST adjustment

3 MAIN PAL COLOR

GAIN adjustment

4 MAIN PAL Cr GAIN

adjustment

5 MAIN CONTRAST

adjustment

6 SUB PAL Y

CONTRAST adjustment

Pin (1) of P801

Pin (3) of P801

Pin (5) of P801

IC810 output (TP815)

Press the DUAL screen button. Select the special DUAL screen settings for adjustment

TB1274_SUB Output (TP806)

Adjust pin (1) of P801 to 0.70 ±0.025 Vp-p.

Adjust pin (3) of P801 to

0.70 ±0.025 Vp-p.

0.70V

Adjust pin (5) of P801 to

0.70 ±0.025 Vp-p.

0.70V

Adjust the output (TP815) of IC810 to have 0.90±0.025 Vp-p from the pedestal level.

(so that the same video source is reflected on MAIN/ SUB).

Adjust TB1274_SUB output (TP806) to

1.5 ±0.05 Vp-p.

7 SUB PAL COLOR

GAIN adjustment

TB1274_SUB Output (TP805)

Adjust TB1274_SUB output (TP805) to

1.5 ±0.05 Vp-p.

(4) SECAM signal adjustment

Adjustment items Adjustment conditions Adjustment procedures

1 Setup 1. Set colour system to SECAM.

2 MAIN SECAM Y

CONTRAST adjustment

3 MAIN SECAM COLOR

GAIN adjustment

4 MAIN SECAM Cr

GAIN adjustment

INPUT1-Video

Pin (1) of P801

Pin (3) of P801

Pin (5) of P801

2. Select SECAM source. 100% colour bar signal including 100% white, such as split field colour bar.

Adjust the "MAIN SECAM Y CONTRAST" setting so that the 100% white level at Pin (1) of P801 should be

0.7±0.025 Vp-p.

Adjust "MAIN SECAM COLOR GAIN" to 0.7 ±0.025 Vp-p at pin (3) of P801.

Adjust "GAIN MAIN SECOM Cr " to 0.7 ±0.025 Vp-p at pin (5) of P801.

0.7V

LC-30HV4M LC-30HV4H

(5) N358 signal adjustment

Adjustment items Adjustment conditions Adjustment procedures

1 Setup 1. Set colour system to N358.

INPUT1-Video

2. Select N358 source. 100% colour bar signal including 100% white, such as split fied colour bar.

2 MAIN N358 Y

CONTRAST adjustment

3 MAIN N358 COLOR

GAIN adjustment

4 MAIN N358 Cr GAIN

adjustment

5 MAIN N358 TINT

adjustment

Pin (1) of P801

Pin (3) of P801

Pin (5) of P801

TB1274_MAIN Output (TP802)

Adjust "MAIN N358 Y CONTRAST" at 100% white section to 0.70 ±0.025 Vp-p at pin (1) of P801.

Adjust "MAIN N358 COLOR GAIN" to 0.70 ±0.025 Vp-p at pin (3) of P801.

0.70V

Adjust "MAIN N358 Cr GAIN" to 0.70 ±0.025 Vp-p at pin (5) of P801.

0.70V

Adjust "MAIN N358 TINT" at TB1274_MAIN output (TP802) so that waveform becomes as illustrated below:

Smoothed

(6) Component 15k Hz signal adjustment

Adjustment items Adjustment conditions Adjustment procedures

1 Setup 1. Select component 15k Hz.

2 MAIN COMP 15k Y

CONTRAST adjustment

3 MAIN COMP 15k

COLOR GAIN adjustment

4 MAIN COMP 15k Cr

GAIN adjustment

INPUT1_COMPONENT

Pin (1) of P801

Pin (3) of P801

Pin (5) of P801

2. Select component source. 100% colour bar signal including 100% white, such as split field colour bar.

Adjust "COMP 15k Y CONTRAST" to 0.70±0.025 Vp-p at pin (1) of P801.

Adjust "COMP 15k COLOR GAIN" to 0.70 ±0.025 Vp-p at pin (3) of P801.

Adjust "COMP 15k Cr GAIN" to

0.70 ±0.025 Vp-p at pin (5) of

P801.

0.70V

(7) Component HDTV signal adjustment

Adjustment items Adjustment conditions Adjustment procedures

1 Setup 1. Input HDTV (1080i) component signal.

SIGNAL

∫ COMPONENT HDTV ∫ 100% Colour bar

POINT INPUT1_COMPONENT

2. Select component source. 100% colour bar signal including 100% white, like split field colour bar

LC-30HV4M LC-30HV4H

2 MAIN COMP HDTV

CONTRAST adjustment

Pin (9) of P801

Adjust the "COMP HDTV CONTRAST" at pin (9) of P801 to have 0.90 ±0.025 Vp-p from the pedestal level.

2. Factor y settings

Adjustment item Adjustment conditions Adjustment procedure

1 INDUSTRY INIT

* Then turn off the AC power supply of the AVC system. (Be careful not to use the power switches of the remote control unit and DISPLAY unit.)

It will be an end, if unite cursor with the line of "INDUSTRY INI", push a "VOL" button, it changes into "ON", a "ENTER" button is pushed after that and it is turned "OFF". CAUTION:Before a setup is completed, please do not shut off a power supply by any means.

Notes:

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

2) Turn the AVC ac po wer 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

LC-30HV4M LC-30HV4H

ËË

Ë Adjustment Mode Menu List (AVC System)

ËË

PAGE LINE NAME FUNCTION

11Ë+BAdj3.3V +BAdjust3.3VDisp(x,y,line)

21ËMAIN PAL Adjust AutoAdjustPAL_MAIN_Disp(x,y,line)

31ËSUB PAL Adjust AutoAdjustPAL_SUB_Disp(x,y,line)

41ËSECAM Adjust AutoAdjustSECAM_Disp(x,y,line)

51ËN358 Adjust AutoAdjustN358_Disp(x,y,line)

61ËCOMP15K Adjust AutoAdjustComp15k_Disp(x,y,line)

71ËPAL White Balance PAL_WB_Disp( x, y, line )

81ËN358 White Balance N358_WB_Disp( x, y, line )

2 Ë+BAdj1.8V(Enter:Auto) +BAdjust2.5VDisp(x,y,line) 3 KEY WRITE KeyWrite_Disp(x,y,line) 4 ËDATA COPY DataCopy_Disp(x,y,line) 5 INDUSTRY INIT IndustryInit_Disp(x,y,line) 6 CENTER Version CenterVersion_Disp(x,y,line) 7 OSD Version OSDVersion_Disp(x,y,line) 8 CVIC Version CVICVersion_Disp(x,y,line)

9 TTXP Version TTXPVersion_Disp(x,y,line) 10 MONITOR Version MonitorVersion_Disp(x,y,line) 11 STANDBY TYPE StandbyType_Disp(x,y,line) 12 HOTEL MODE HotelMode_Disp(x,y,line)

2 ËPAL Y CONTRAST PALYContrast_Disp(x,y,line)

3 ËPAL COLOR GAIN PALColorGain_Disp(x,y,line)

4 ËMAIN CR GAIN PAL MainCRGainPal_Disp(x,y,line)

5 ËMAIN CONTRAST 15K MainContrast15K_Disp(x,y,line)

6 Center Acutime CenterAcutime_Disp(x,y,line)

7 RESET CenterAcutimeReset_Disp(x,y,line)

8 Monitor Acutime MonitorAcutime_Disp(x,y,line)

9 RESET MonitorAcutimeReset_Disp(x,y,line)

2 ËSUB PAL Y SUBPALY_Disp(x,y,line)

3 ËSUB PAL COLOR GAIN SUBPALColorGain_Disp(x,y,line)

4 ËTUNER DAC ADJ TurerA_DAC_Disp( x, y, line )

2 ËSECAM Y CONTRAST SECAMYContrast_Disp(x,y,line)

3 ËSECAM COLOR GAIN SECAMColorGain_Disp(x,y,line)

4 ËMAIN CR GAIN SECAM MainCRGainSECOM_Disp(x,y,line)

2 ËN358 Y CONTRAST N358YContrast_Disp(x,y,line)

3 ËN358 COLOR GAIN N358ColorGain_Disp(x,y,line)

4 ËMAIN CR GAIN N358 MainCRGainN358_Disp(x,y,line)

5 ËN358 TINT N358TINT_Disp(x,y,line)

6 ËREFERENCE Adjust AutoAdjustRef_Disp(x,y,line)

2 Ë

COMP15K Y CONTRAST

3 Ë

COMP15K COLOR GAIN

4 Ë

MAIN CR GAIN COMP15K 5 ËCOMP HDTV Adjust AutoAdjustHDTV_Disp(x,y,line) 6 Ë

COMP HDTV CONTRAST 7 Ë

COMP HDTV SUB BRIGHT 8 ËPEAK ACL SW PeakACLSW_Disp(x,y,line)

2 PAL R CUTOFF PALRCutoff_Disp(x,y,line) 3 PAL R DRIVE PALRDrive_Disp(x,y,line) 4 PAL G CUTOFF PALGCutoff_Disp(x,y,line) 5 PAL G DRIVE PALGDrive_Disp(x,y,line) 6 PAL B CUTOFF PALBCutoff_Disp(x,y,line) 7 PAL B DRIVE PALBDrive_Disp(x,y,line) 8 DYNAMIC GAMMA DynamicGamma_Disp(x,y,line) 9 SIGNAL INFO SignalInfo_Disp(x,y,line)

10 TTXP READ/WRITE TTXPReadWrite_Disp(x,y,line) 11 TTXP ADDRESS TTXPAddress_Disp(x,y,line) 12 TTXP DATA TTXPData_Disp(x,y,line) 13 TTXP ANSWER TTXPAnswer_Disp(x,y,line) 14 TTXP UPDATE TTXPUpdate_Disp(x,y,line) 15 TTXIPL UPDATE TTXPLUpdate_Disp(x,y,line) 16 ËMAIN SUBBRIGHT 15K MainSubBright15K_Disp(x,y,line)

2 PC White Balance PC_WB_Disp( x, y, line ) 3 N358 R CUTOFF N358RCutoff_Disp(x,y,line) 4 N358 R DRIVE N358RDrive_Disp(x,y,line) 5 N358 G CUTOFF N358GCutoff_Disp(x,y,line) 6 N358 G DRIVE N358GDrive_Disp(x,y,line) 7 N358 B CUTOFF N358BCutoff_Disp(x,y,line) 9 N358 B DRIVE N358BDrive_Disp(x,y,line)

Comp15kYContrast_Disp(x,y,line) Comp15kColorGain_Disp(x,y,line) MainCRGainComp15k_Disp(x,y,line)

CompHDTVContrast_Disp(x,y,line) CompHDTVSubBright_Disp(x,y,line)

LC-30HV4M LC-30HV4H

91Ë

10 1 Ë

11 1 TROUBLE RECORD1 TroubleRecord1_Disp(x,y,line)

10 TROUBLE RECORD4 TroubleRecord4_Disp(x,y,line) 11 ACUTIME TroubleAcutime4_Disp(x,y,line) 12 TEMP TroubleTemp4_Disp(x,y,line)

| OMIT 17 18 1 NOISE C TUNER CVIC2NoiseCTunerA_Disp(x,y,line)

19 1 DEBUG PRINT SW DEBUG_Level_SW_Disp( x, y, line )

COMP15K White Balance 2 COMP15K R CUTOFF Comp15KRCutoff_Disp(x,y,line) 3 COMP15K R DRIVE Comp15KRDrive_Disp(x,y,line) 4 COMP15K G CUTOFF Comp15KGCutoff_Disp(x,y,line) 5 COMP15K G DRIVE Comp15KGDrive_Disp(x,y,line) 6 COMP15K B CUTOFF Comp15KBCutoff_Disp(x,y,line) 7 COMP15K B DRIVE Comp15KBDrive_Disp(x,y,line)

COMP33K White Balance 2 COMPHDTV R CUTOFF CompHDTVRCutoff_Disp(x,y,line) 3 COMPHDTV R DRIVE CompHDTVRDrive_Disp(x,y,line) 4 COMPHDTV G CUTOFF CompHDTVGCutoff_Disp(x,y,line) 5 COMPHDTV G DRIVE CompHDTVGDrive_Disp(x,y,line) 6 COMPHDTV B CUTOFF CompHDTVBCutoff_Disp(x,y,line) 7 COMPHDTV B DRIVE CompHDTVBDrive_Disp(x,y,line)

2 ACUTIME TroubleAcutime1_Disp(x,y,line) 3 TEMP TroubleTemp1_Disp(x,y,line) 4 TROUBLE RECORD2 TroubleRecord2_Disp(x,y,line) 5 ACUTIME TroubleAcutime2_Disp(x,y,line) 6 TEMP TroubleTemp2_Disp(x,y,line) 7 TROUBLE RECORD3 TroubleRecord3_Disp(x,y,line) 8 ACUTIME TroubleAcutime3_Disp(x,y,line) 9 TEMP TroubleTemp3_Disp(x,y,line)

2 NOISE C INPUT1 CVIC2NoiseCInput1_Disp(x,y,line) 3 NOISE C INPUT2 CVIC2NoiseCInput2_Disp(x,y,line) 4 NOISE C INPUT3 CVIC2NoiseCInput3_Disp(x,y,line) 5 NOISE C INPUT4 CVIC2NoiseCInput4_Disp(x,y,line) 6 NR LEVEL CVIC2NrLevel_Disp(x,y,line)

2 PIC ADJ MAKER SELECT Pict_Adj_Maker_Select_Disp( x, y, line ) 3 PIC ADJ KOUTEI SELECT Pict_Adj_Koutei_Select_Disp( x, y, line ) 4 EEPROM SAVE E2PROMSave_Disp( x, y, line ) 5 EEPROM RECOVER E2PROMRecover_Disp( x, y, line ) 6 CENTER PROG UPDATE CenterProgUpdate_Disp(x,y,line)

Comp15K_WB_Disp( x, y, line )

CompHDTV_WB_Disp( x, y, line )

LC-30HV4M LC-30HV4H

UPGRADING INSTALLED PROGRAMS

Programs installed in the product are mainly divided into the following two categories:

∫ Main programs (for AVC system) ∫ Monitoring program (for display)

CAUTON: 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.

[Tools required] ∫ PC A Windows 95/98/me/2000/XP PC that has a COM port (RS-232C). A USB-R232C converter will be acceptable provided that it is appropriately set and has PC compatibility. ∫ RS-232C cross cable Interlink cable is also acceptable.

[Preparations] Rewriting a program needs the product to enter the in-process adjustment mode.

1) The rewriting software is supplied in the form of an exe file named e.g., "MAIN_2002_10_10A.e x e" (provisional). Create a directory on a HD and copy the software into the directory.

2)Double-click the file. The file will be self-extracted. Check the extracted file against the documentation accompanying with the software.

3) Connect the AVC System and the display unit with each other and make them ready for operation (make sure the power LEDs of the AVC System and display unit turn red).

4) Use an RS-232C cable to connect the PC to the AVC System.

5) Turn off the "MAIN POWER" button of the Display.

6) Press the "MAIN POWER" button while holding down the "VOL (-)" and "INPUT" buttons on the display unit simultaneously. (Be continuing pushing "VOL (-)" and "INPUT" buttons until a display comes out.) If blue characters appear on the display, the system has entered the in-process adjustment mode successfully. If not (the normal activation screen opens), retry.

[Rewriting the main program]

1) In the in-process adjustment mode, press the "CH (Up)" button on the remote controller . You will move to page ("13/13" will appear on the upper left corner of the screen).

2) Make sure CENTER PROG UPDATE on page 1/19 is highlighted. (It checks that "CENTER PROG UPDATE" on page 1/19 is chosen.)

3) Use the "VOL (+)/(-)" butons to change OFF to ON.

4) Press the "ENTER" button on the remote controller. Characters on the screen will disappear and the screen blacks out.

5) Double-click the batch file specified in the document accompanying with the software.

6) A black window (MS-DOS window) will open and rewriting starts automatically. For a while, "ok received" will appear on the screen. Rewiring of the main program is now complete. Unplug the AC cord from the AVC System and turn off the system and then on again.

7) Enter the in-process adjustment mode and make sure the version information on the "CENTER Version", "OSD Version" and "CVIC Version" lines on page 1/19 has been updated.

LC-30HV4M LC-30HV4H

Continued

LC-30HV4M LC-30HV4H

ADJUSTMENT PROCEDURES (DISPLAY)

See "Adjusting mode" for the steps to go into adjustment process mode. NOTE: When IC2203 is replaced, it id needed to initialization first then Background adjustment and Common bias

adjustment.

1) +B adjustment (LCD Control PWB: R4648)

1. Receive NTSC standard color bar signal.

2. Connect digital voltmeter to TP4602 and adjust to the specified value. Specification: 13.00 ± 0.05V

2) Common bias adjustment Make this adjustment each for "50 Hz", "60 Hz" and "PC". Select the input signal according to the indication onscreen.

1. Go to "Adjustment process mode".

2. On the LCD, select "14" of "PATTERN 1", dot inversion flicker pattern 2.

3. Then, select "COM BIAS" on the LCD.

4. Set the value so that the flicker on the screen is minimized. Note: Apply this adjustment after for at least 30 min.

3) Background adjustment

1. Select video standard, and confirm the indication that the unit is preset to the standard.

2. At video input, receive the window pattern signal having left 80% WHITE (200/255) and right 20% WHITE (48/

255).

3. Set the screen size to the full mode.

4. Go to "Adjustment process mode".

5. Adjust "R OFFSET", "G OFFSET" and "B OFFSET" in "SIL861" so that left side 80% WHITE window pattern is set to the specified value.

6. Adjust "R GAMMA", "G GAMMA" and "B GAMMA" in "SIL861" so that right side 20% WHITE window pattern is set to the specified value.

Specification: x = 0.278, y = 0.274 (80% WHITE), x= 0.259, y = 0.248 (20% WHITE) (LC-30HV4M)

x = 0.283, y = 0.274 (80% WHITE), x= 0.263, y = 0.242 (20% WHITE) (LC-30HV4H)

Note: Apply this adjustment after for at least 30 min.

4) Initialization

1. Go to "Adjustment process mode".

2. Select "1" thru "3" of "CLR MODE" in "TEST". Setting range: 0 Normal

1 Initial setting (User clear: Factory setting) 2 Initial setting (All clear) Full initialization of EEPROM (except for ROM area) 3 Full initialization of Configuration EEPROM

3. Move the cursor down by one line.

4. Press "VOL UP" key and change the display from "WAIT" to "SEND" (write).

5. Do not shut down power while the display is "SEND".

6. When the writing is finished, the display changes from "SEND" to "WAIT".

5) Resetting lamp error counter

1. Go to "Adjustment process mode".

2. Select "L ERR RESET" in "TEST".

3. Reset the data to "0".

[L ERR RESET] Function: Reset of fluorescent lamp error counter

It resets the times of fluorescent lamp errors and clears the last value in the memory. Indication range: 0-5 (Fluorescent lamp errors) (When lamp error exceeds 5 times, power supply is disabled. Resetting is required in this case.)

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