SHARP LC-30HV4M Service Manual

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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.)

LC-30HV4M LC-30HV4H

Adjusting Mode

1. Overview

The controller IC can be adjusted in this mode. Adjustment is done while controlling the setting of the resistor corresponding to the selected adjustment item. When monitor is used independently, it is adjusted using the OSD simple display function incorporated in LCD controller. The OSD function of panel link receiver (SIL861) is used for adjustment of the independent monitor.

2. Entry to the mode

1) When cable is not connected (independent mode), follow the steps below. a) When power switch is turned on, press the main unit INPUT and VOL DOWN keys simultaneously. b) Press the remote controller's process adjustment key (R/C code: 40h) / process adjustment mode 2 key (R/

C code: 31h).

2) When not in independent mode, follow the steps below. a) When power switch is turned on, press the main unit CH DOWN and VOL UP keys simultaneously. b) Press the remote controller's process adjustment mode 2 key.

3. Exit from the mode

Turn off the power. Press the remote controller's process adjustment mode 2 key.

4. Display

1) First layer display

The third line shows the title. The 5th line and below show the items. Microprocessor's version number appears in the 16th line.

Example) 1.00 Æ 1 00

1234567891011121314 1SERVICE MODE 2OMODE 50HZ 3LCD 4SIL861 5TEST 6VERXXX

2) Second layer display (Adjustment item display) A single page shows up to 10 adjustment items (or 14 lines). The third line shows the title and the screen mode selected in MODE items (only when LCD is selected). The 5th line shows the item. Microprocessor's version number appears in the 16th line. Example) 1.00 Æ 1 00 Setting is shown in decimal number.

a) Adjustment on the LCD items

1234567891011121314 1LCD 50HZ 2OVL0 22 1 3REF0 209 4VL64 98 5REF64 170 6VL96 92 7REF96 184 8 VL128 85 9REF128 188

10 VL160 71 11 REF160 199

LC-30HV4M LC-30HV4H

b) Adjustment on the TEST items

1234567891011121314 1TEST 2OL ERR RE 0 3LCDDATA0000 4WAIT 5CLRMODE 0 6WAIT 7CNFGEEP0000 8WAIT

5. Changing data

In "adjustment item display", the items pointed by cursor can be changed using VOL UP/DOWN key.(Holding down the key is effective.) For the items in "LCD DATA", select the item and hit ENTER key. The ten's digit (leftmost digit) in the address changes to red (others in green). Data change using VOL UP/DOWN key is enabled. To move to the next digit, press CH UP k ey (or rightward cursor k e y). To go back to the previous digit, press CH DOWN key (or leftward cursor key). Thus, 4 digits data can be entered. When CH UP key is pressed while in rightmost digit, the cursor moves to the leftmost digit. When CH DOWN key is pressed while in leftmost digit, the cursor moves to the rightmost digit. After address data adjustment, press ENTER key to exit from 4-digit adjustment and change the entire "LCD DATA" line to red letters. (Same status as item selection)

6. Key operation

1) Basic behaviors Basic key behaviors are as follows.

Behavior Keys

Remote controller Main unit Upward cursor movement Cursor up CH UP Downward cursor movement Cursor down CH DOWN Rightward cursor movement Cursor right Leftward cursor movement Cursor left Data UP VOL UP VOL UP Data DOWN VOL DOWN VOL DOWN Set ENTER INPUT Back to previous layer RETURN Back (In bottom layer only) ENTER INPUT

2) Data UP/DOWN For the item for which OSD display is available, switch the display. Adjust the data with UP/DOWN operation. (Any value beyond the limit is replaced by the limit value.) Output data processing Data transmission for every UP/DOWN operation (Data related to peripheral controller IC) Execution of the last memory data when key is off While the key is held down, the second step is performed approx. 500ms after the k ey operation and, after this, every single step of UP/DOWN is carried out sequentially at 135ms interval.

3) Cursor UP/DOWN Select the adjustment item by pointing it with the cursor. When upward cursor movement is done while the cursor is at the top item, the cursor goes to the bottom item. (In the case of multiple pages, the cursor goes to the bottom item on the previous page.) When downward cursor movement is done while the cursor is at the bottom item, the cursor goes to the top item. (In the case of multiple pages, the cursor goes to the top item on the next page.) While the key is held down, the second step is performed approx. 500ms after the k ey operation and, after this, every single step of UP/DOWN is carried out sequentially at 135ms interval.

ËË

Ë Adjustment Mode Menu List (Display)

ËË

First layer item PAGE ITEM SETTING RANGE INITIAL VALUE DATA SETTING MODE 1 50HZ/60HZ/PC 50HZ Toggle LCD 1 VL0 0 ~ 255 221 No Toggle

REF0 0 ~ 255 209 No Toggle VL64 0 ~ 255 98 No Toggle REF64 0 ~ 255 170 No Toggle VL96 0 ~ 255 92 No Toggle REF96 0 ~ 255 184 No Toggle VL128 0 ~ 255 85 No Toggle REF128 0 ~ 255 188 No Toggle VL160 0 ~ 255 71 No Toggle REF160 0 ~ 255 199 No Toggle

2 VL192 0 ~ 255 77 No Toggle

REF192 0 ~ 255 103 No Toggle VL224 0 ~ 255 88 No Toggle REF224 0 ~ 255 112 No Toggle VL256 0 ~ 255 108 No Toggle REF256 0 ~ 255 78 No Toggle COM BIAS 0 ~ 255 70 No Toggle PWM CTRL 0 ~ 7 Toggle PWM FREQ 0 ~ 4095 585 No Toggle PWM DUTY 0 ~ 4095 0 No Toggle

3 PATTERN1 0 ~ 14 0 Toggle

PATTERN2 0 ~ 12 0 Toggle P – CLK1 0 ~ 3 0 No Toggle P – CLK2 0 ~ 7 0 No Toggle OS SW 0 ~ 1 0 Toggle OS D1 0 ~ 255 138 No Toggle OS D2 0 ~ 255 167 No Toggle OS D3 0 ~ 255 170 No Toggle OPC LV0 0 ~ 85 0(40) No Toggle OPC LV1 0 ~ 85 8(44) No Toggle

4 OPC LV2 0 ~ 85 16(48) No Toggle

OPC LV3 0 ~ 85 24(52 )No Toggle OPC LV4 0 ~ 85 32(56) No Toggle OPC LV5 0 ~ 85 40(60) No Toggle OPC LV6 0 ~ 85 48(64) No Toggle OPC LV7 0 ~ 85 56(68) No Toggle OPC LV8 0 ~ 85 64(72) No Toggle OPC LV9 0 ~ 85 72(76) No Toggle OPC LV10 0 ~ 85 80(80) No Toggle

SIL861 1 R GAMMA 20 ~ 180 100 No Toggle

R OFFSET 0 ~ 510 256 No Toggle G GAMMA 20 ~ 180 100 No Toggle G OFFSET 0 ~ 510 256 No Toggle B GAMMA 20 ~ 180 100 No Toggle B OFFSET 0 ~ 510 256 No Toggle

TEST 1 L ERR RESET 0 ~ 5 0 Toggle

LCD DATA Four digits 0 ~ F 0 Toggle

WAIT/SEND WAIT ———

CLR MODE One digits 0 ~ 2 0 Toggle

WAIT/SEND WAIT ———

CNFG EEP Four digits 0 ~ F 0 Toggle

WAIT/SEND WAIT ———

LC-30HV4M LC-30HV4H

* Values in the parentheses are with PC.

LC-30HV4M LC-30HV4H

MAJOR IC INFORMATIONS

∫ IC2501 (MSP4458G)

IC for decoding audio signals. It serves as an S-IF audio signal decoder and an audio data selector.

∫ IC2701 (IXA385WJ)

IC for controlling audio delay. This model uses a frame buffer to process video signals . This results in a delay in outputting video signals. The IC delays output of audio signals to synchronize output of video and audio signals.

∫ IC1301 (CXA2069Q)

7-input, 3-output selector. This IC selects all audio and video signals received from input terminals and the tuner, except those signals that relates to PC and components. Video signals delivered to the IC are sent to Y/C separation circuits IC401 (main) and IC402 (sub). Audio signals are sent to the SR unit via IC2501 (sound processor).

∫ IC1401 (MM1519XQ)

4-input, 3-output video selector for component input. This IC receives AV3 component input, AV1/3 RGB input and teletext RGB signals. Its output is for main, sub and component.

∫ IC1601 (SDA5550M) (Only for LC-30HV4M)

Teletext processing micro-processor. This IC receives vide signals, decodes teletext and outputs data in RGB format.

∫ IC7001 (µPD64084)

This IC provides 3D processing of NTSC signals and thus high resolution Y/C separation of the main image signals received from IC1301. It incorporates a 4M-bit frame delay memory board and features one-chip 3D Y/C separation. ∫ Two operation modes available; dynamic image 3D Y/C separation mode and 2D Y/C separation + YCNR mode

∫ Y coring circuit, vertical contour compensation circuit, peaking filter and noise detection circuit incorporated ∫ Power down mode available to minimize power consumption when not in operation

∫ IC401/IC402 (TC90A69)

Adaptive in-field comb filter supporting both the NTSC and PAL systems. Equipped with CNR circuit, the 3-line digital comb filter is a high-precision Y/C single chip, which provides Y/C separation of sub image signals received from IC1301.

∫ IC403/IC7003/IC404 (ML6428Cl)

6.7 MHz low-pass filter.

∫ IC801/802 (TB1274AF)

IC for synchronous processing of video and chroma signals for PAL/NTSC/SECAM colour TV. Color demodulation is provided by a high-performance image compensation circuit in the video section, a PAL/NTSC/SECAM auto discrimination circuit in the chroma section, and a crystal that generates 4.43 MHz,

3.58 MHz and M/N-PAL clock signals. This IC has a 4-channel YC signal input, 2-channel RGB signal input, and 2-channel chrominance signal input. It receives main and sub chrominance signals from IC401 (main) and IC402 (sub) and delivers chrominance signals via one-channel output.

∫ IC803 (CXA2101Q)

IC having a chrominance input integrated with a high-perf ormance image compensation circuit. Equipped with circuits for processing baseband signals and RGB signals and a 4-channel video switch incorporating an H/V synchronization signal processing circuit. Input selection is done by INPUT-SEL (IIC BUS). YCbCr, Y, PbPr, GBR and their H/V synchronization signals are inputted to input pins of each channel. Multi-scan facility permits acceptance of a horizontal scan line frequency range of 15 kHz to 60 kHz.

∫ IC1901 (IXA392WJ)

FPGA for synchronous processing. This IC selects synchronization signals and creates horizontal blanking signals.

∫ IC604 (TA1318AF)

IC for synchronous processing of TV component signals and measurement of frequency. This IC incorporates an input signal frequency measurement feature and synchronous regeneration features. It supports synchronous horizontal regeneration (15.75 kHz, 31.5 kHz, 33.75 kHz and 45 kHz) and synchronous vertical regeneration (480I, 480P, 576I, 720P, 1080I, PAL 100 Hz, and NTSC 120 Hz).

LC-30HV4M LC-30HV4H

∫ PC I/F unit ∫ IC10004 (CXA3506R)

3-ch, 8-bit 120MSPS A/D converter incorporating AMP and PLL. This IC process video signals supplied to the interface board. On the main side, video signals (analog RGB) from CN6 are inputted to IN1 of IC10004. On the PC side , vide signals (analog RGB) from CN8 are inputted to IN2 of IC10004. Converted digital signals are sent to IC10025.

∫ IC10310 (TLC5733A)

3-ch, 8-bit 20MSPS A/D converter. This IC processes video signals supplied to the interface board. It receives analog signals (YCbCr) from CN6 and sends converted digital signals to IC10310. The incoming video signal is converted to digital one and fed to IC10025.

∫ IC10025 (IXA091WJ)

IC for I/P conversion and scaling of digital image according to the output resolution, and for data conversion. There are two input channels: V0 and V1. V1 is for sub 480i input processing for two-screen application. V0 is for processing all signals for main used for one and two-screen applications.

∫ The IC generates clamp signals based on input synchronization signals. ∫ It also performs data matrix conversion. ∫ It creates OSD signals.

The incoming video signal is fed to IC10413.

∫ IC10413 (SII170)

Panel link transmitter. This IC converts 8-bit RGB image data received from IC10025 into TMDS differential signals and sends the resulting digital signals to the monitor. HDCP function is provided.

∫ IC10001 (IX3270CE)

One-chip RISC microprocessor. This IC communicates with the monitor and controls the system operation. It controls all the ICs located in the AVC system.

∫ IC10405 (µPD4721G)

RS-232 line driver/receiver conforming to EIA/TIA-232-E. This IC enables the system to be controlled from a PC connected to the system. It also allows IC10001 to be upgraded using the PC.

LC-30HV4M LC-30HV4H

ËRH-iXA385WJZZ (ASSY:IC2701) DELAY

» Pin mapping

Pin No. Pin Name Type Description

1, 19, 32, 33 VDD –– Power supply

44, 64

2 PLLVDC –– PLL power supply 3 VCOIN I VCO IN (used to construct external loop filter) 4 TEST I Input for testing 5 CPOUT O Charge pump out (used to construct external loop filter) 6 PLLEN I PLL enable signal input 7 PLLGND ––

8, 9, 10, 18, 31 GND ––

41, 42, 43, 62

11 PLLENO O PLL enable signal output 12 SPDIFO O S/PDIF output (3.072 Mbps) 13 SPDIFI I S/PDIF input (3.072 Mbps) 14 IO0 I/O Expanded I/O, bit 0 15 IO1 I/O Expanded I/O, bit 1 16 IO2 I/O Expanded I/O, bit 2 17 IO3 I/O Expanded I/O, bit 3 20 IO4 I/O Expanded I/O, bit 4 21 UTEST I Input for testing 22 NANDTO O Output for testing 23 RESET I Asynchronous reset signal input 24 MEMTEST I Input for testing 25 BISTOUT O Output for testing 26 RWCLK O Expanded FIFO R/W clock 27 RSTRW O Expanded FIFO master reset 28 FEW O Expanded FIFO write enable 29 FRE O Expanded FIFO read enable 30 FD07 O Expanded FIFO data output, bit 7 34 FD06 O Expanded FIFO data output, bit 6 35 FD05 O Expanded FIFO data output, bit 5 36 FD04 O Expanded FIFO data output, bit 4 37 FD03 O Expanded FIFO data output, bit 3 38 FD02 O Expanded FIFO data output, bit 2 39 FD01 O Expanded FIFO data output, bit 1 40 FD00 O Expanded FIFO data output, bit 0 45 FD17 I Expanded FIFO data input, bit 7 46 FD16 I Expanded FIFO data input, bit 6 47 FD15 I Expanded FIFO data input, bit 5 48 FD14 I Expanded FIFO data input, bit 4 49 FD13 I Expanded FIFO data input, bit 3 50 FD12 I Expanded FIFO data input, bit 2 51 FD11 I Expanded FIFO data input, bit 1 52 FD10 I Expanded FIFO data input, bit 0 53 SDA I/O Serial communication data 54 SCS I Serial communication chip select 55 SCK I Serial communication chip select 56 I2SCLO O I2S CL output 57 I2SDAO O I2S CL output 58 I2SWSO O I2S WS output 59 I2SWSI I I2S WS input 60 I2SDAI I I2S DA input 61 I2SCLI I I2S CL input 63 REFCLK I PLL REF CLK (same input as I2SCLI)

ËVHiMSP4458G-1Q (ASSY:IC2501) Multi Sound Processor »Block diagram

LC-30HV4M LC-30HV4H

» Pin mapping

Pin No. Pin Name Type Description

1 NC –– Not connected 2 I2C_CL I/O I2C clock 3 I2C_DA I/O I2C data 4 I2S_CL I/O I2S clock 5 I2S_WS I/O I2S word strobe 6 I2S_DA_OUT O I2S data output 7 I2S_DA_IN1 I I2S1 data input 8 ADR_DA O ADR data output 9 ADR_WS O ADR word strobe

10 ADR_CL O ADR clock 11, 12, 13 DVSUP –– Digital power supply 5V 14, 15, 16 DVSS –– Digital ground

17 I2S_DA_IN2 I I2S2-data input

18 NC –– Not connected

19 I2S_CL3 I I2S3 clock

20 I2S_WS3 I I2S3 word strobs

21 RESETQ I Power-on-reset

22 I2S_DA_IN3 I I2S3-data input

23 NC –– Not connected

24 DACA_R O Headphone out, right

25 DACA_L O Headphone out, left

26 VREF2 –– Reference ground 2

27 DACM_R O Loudspeaker out, right

28 DACM_L O Loudspeaker out, left

29, 30, 31, 32 NC –– Not connected

33 SC2_OUT_R O SCART 2 output, right

34 SC2_OUT_L O SCART 2 output, left

35 VREF1 –– Reference ground 1

36 SC1_OUT_R O SCART 1 output, right

37 SC1_OUT_L O SCART 1 output, left

38 CAPL_A –– Volume capacitor AUX

39 AHVSUP –– Analog power supply 8V

40 CAPL_M –– Volume capacitor MAIN

41,42 NC –– Not connected 43,44 AHVSS –– Analog ground

45 AGNDC –– Analog reference voltage

46 NC –– Not connected

47 SC4_IN_L I SCART 4 input, left

48 SC4_IN_R I SCART 4 input, right

49 ASG –– Analog Shield Ground

50 SC3_IN_L I SCART 3 input, left

51 SC3_IN_R I SCART 3 input, right

52 ASG –– Analog Shield Ground

53 SC2_IN_L I SCART 2 input, left

54 SC2_IN_R I SCART 2 input, right

55 ASG –– Analog Shield Ground

56 SC1_IN_L I SCART 1 input, left

57 SC1_IN_R I SCART 1 input, right

58 VREFTOP –– Reference voltage IF A/D converter

59 NC –– Not connected

60 MONO_IN I Mono input

61, 62 AVSS –– Analog ground 63, 64 NC –– Not connected 65, 66 AVSUP –– Analog power supply 5V

67 ANA_IN1+ I IF input 1

68 ANA_IN- I IF common(can be left vacant, only if IF input 1 is also not in use)

69 ANA_IN2+ I IF input 2(can be left vacant, only if IF input 1 is also not in use)

70 TESTEN I Test pin

71 XTAL_IN I Crystal oscillator

72 XTAL_OUT O

73 TP –– Test pin

74 AUD_CL_OUT O Audio clock output(18.432MHz)

75, 76 NC –– Not connected

77 D_CTR_I/O_1 I/O D_CTR_I/O_1

78 D_CTR_I/O_0 I/O D_CTR_I/O_0

79 ADR_SEL I I2C Bus address select

80 STANDBYQ I Stand-by(low-active)

ËVHiCXA2069Q-1 (ASSY:IC1301) S2-compatible 7-input, 3-output AV switch »Block diagram

LC-30HV4M LC-30HV4H

» Pin mapping

Pin No. Pin Name Type Description

63 TV I Video signal input

1 V1 I Composite video signal input

8V2 I 15 V3 I 22 V4 I 30 V4 I 60 V4 I

3 Y1 I Y/C separation signal input, used for luminance signal input 10 Y2 I YIN1: Input for signal created by Y/C separation of VOUT1 output 17 Y3 I 24 Y4 I 49 YIN1 I

5 C1 I Y/C separation signal input, used for chrominance signal input 12 C2 I CIN1: Input for signal created by Y/C separation of VOUT1 output 19 C3 I 26 C4 I 51 CIN1 I

62, 2 LTV, LV1 I Audio signal input

9, 16 LV2, LV3 I 23, 29 LV4, LV5 I 59, 64 LV6, RTV I

4, 11 RV1, RV2 I 18, 25 RV3, RV4 I 31, 61 RV5, RV6 I

53 VOUT1 O Video signal output, used for composite vide signal output 41 VOUT3 O 44 V/YOUT2 O Video signal output, controlled via I2C bus and used for composite video signal output 56 YOUT1 O Power or luminance signal output is selected. 39 YOUT3 O Video signal output, used for luminance signal output 58 COUT1 O Video signal output, used for chrominance signal output 47 COUT2 O 37 COUT3 O 52 LOUT1 O Audio signal output 43 LOUT2 O 38 LOUT3 O 54 ROUT1 O 45 ROUT2 O 40 ROUT3 O

6 S2-1 I Used for detection of S2-compatible DC that is superimposed to C signal. 13 S2-2 I 4:3 image signal is selected when voltage less than 1.3V, 4:3 letterbox signal when 20 S2-3 I 1.3V or more 2.5V or less, and 16:9 squeeze signal when voltage less than 2.5V. 4:3 27 S2-4 I image signal is selected when the pins are open because they are pulled down to

7 S-1 I Used for selection between composite video signal and S signal. 14 S-2 I Detection result is written to the status register. S signal is selected when voltage 21 S-3 I more than 3.5V, and composite video signal when voltage less than 3.5V. Composite 28 S-4 I video signal is selected when the pins are open because they are pulled down to 5V

32 ADR I Used for selection of slave address for I2C bus.

33 SCL I I2C bus signal input 34 SDA I I2C bus signal input 36 DC OUT O Used for output of S2-compatible DC that is superimposed to COUT3.

55 TRAP1 I Connected to trap circuit for sub carrier. 46 TRAP2 I 48 MUTE I Mute for audio signal output.

50 BIAS I Internal reference bias input.

GND via 100kΩ.

via 100kΩ.

90H is selected when voltage less than 1.5V, and 92H when more than 2.5V. 90H is selected when the pin are open.

DC superimposition is done by connecting to COUT3 via capacitor. The pin is controlled via I2C bus. Connection of 4.7kΩ external resistor provides output impedance of 10±3kΩ that conforms to S2.

Mute is on when voltage less than 1.3V and off when voltage more than 2.5V. Mute is off when the pin is open.

Connected to GND via capacitor.

ËVHiMM1519XQ-1 (IC1401) Component Input Video Switch »Block diagram

LC-30HV4M LC-30HV4H

» Pin mapping

Pin No. Pin Name Type Description

1 VIDEO 1-L1 I D-pin connection line input

2 VIDEO 1-L2 I

3 VIDEO 1-L3 I 11 VIDEO 2-L1 I 12 VIDEO 2-L2 I 13 VIDEO 2-L3 I 21 VIDEO 3-L1 I 22 VIDEO 3-L2 I 23 VIDEO 3-L3 I

4, 14, 39,45, 52, 58 VCC –– Analog power supply (9V)

51 AVCC ––

5 VIDEO 2-Y I Y signal input 15 VIDEO 3-Y I 53 TUNER-Y I 59 VIDEO 1-Y I 24 DGND ––

6, 8, 16, 18, 33,35, GND ––

37, 41, 43, 47, 49,

54, 58, 60, 62

7 VIDEO 2-Pb I Chrominance input

9 VIDEO 2-Pr I 17 VIDEO 3-Pb I 19 VIDEO 3-Pr I 55 TUNER-Pb I 57 TUNER-Pr I 61 VIDEO 1-Pb I 63 VIDEO 1-Pr I 10 VIDEO 2-SW I D-pin connection check switch line input 20 VIDEO 3-SW I 32 MONO-SW I 64 VIDEO 1-SW I 25 ADDRESS I Slave address input 26 SDA I/O I2C bus data input/output 27 SCL I I2C bus clock input 28 DVCC –– Digital power supply (5V) 29 L3 OUT O Monitor output line output 30 L2 OUT O 31 L1 OUT O 34 Pr OUT 3 O Image output 36 Pb OUT 3 O 38 Y OUT 3 O 40 Pr OUT 2 O 42 Pb OUT 2 O 44 Y OUT 2 O 46 Pr OUT 1 O 48 Pb OUT 1 O 50 Y OUT 1 O

ËVHiTB1274AF-1Q (ASSY:IC801, IC802) VIDEO/CHROMA Processor »Block diagram

LC-30HV4M LC-30HV4H

» Pin mapping

Pin No. Pin Name Type Description

1 CVBS1/Y1-IN I CVBS1 or Y1-IN signal input

2 SYNC-IN I Synchronization signal input

3 CVBS-OUT O CVBS or Y+C signal output

4 VS O Output of counted-down vertical synchronization signal

5 COMB Y-IN I Input of Y signal outputted from comb filter. Open when not used

6 D-VDD –– 5 VDC power supply to DDS/BUS/V-CD/H-CD block (standard)

7 COMB C-IN I Input of C signal outputted from comb filter. Open when not used

8 D-GND –– GND for DDS/BUS/V-CD/H-CD block

9 HS O Output of horizontal synchronization signal under AFC 10 SCP O Sand castle pulse output.

11 Yvi-IN O Output of synchronous input Y signal selected using video SW 12 SYNC-VCC –– 5VDC power supply to SYNC/HVCO block (standard) 13 SCL I I2C bus SCL input 14 SDA I/O I2C bus SDA output 15 YS3 I Switch for selection between main signal and RGB1 input signal. This input is

(RGB1-in) operative only when RGB1-ENB is enabled during bus setting. 16 SYNC-GND –– GND for SYCN/HVOC block 17 Cr1-IN I Y1/Cb/Cr1 signal input 18 Cb1-IN I 19 Y1-IN I 20 CLP-FIL –– Used to connect Y clamp filter 21 Y-OUT O Y/Cb/Cr signal output 22 Cb-OUT O 23 Cr-OUT O 24 YS1 I Switch for selection between main signal and input signal

(YVbC2-IN) 25 B1-IN I RGB1 signal input. YS3 or 12C bus is used to select signal. 26 G1-IN I 27 R1-IN I 28 Y/C-GND –– GND for Y/C/Text/Video-SW/1HDL block 29 Cr2-IN I Y2/Cb2/Cr2 signal input. YS1 is used to select signal. 30 Cb2-IN I Open when the pin is not used. 31 Y2-IN I 32 Y/C-VCC –– 5VDC Power supply to Y/C/Text/Video-SW/1HDL block. (standard) 33 B2-IN I RGB2 signal input. YS is used to select signal. 34 G2-IN I Open when not used. 35 R2-IN I 36 YS2/YM I Switch for selection between main signal and RGB2 input signal

(RGB2-IN) 37 FIL. –– Connected to Y/C-VCC pin 38 X'TAL –– Connect to 16.2 MHz crystal oscillator 39 C3-IN I Chroma signal input. Open when not used. 40 APC-FIL –– Connected to chroma modulation filter 41 CVBS3/Y3-IN I CVBS33 or Y3 signal input. Open when not used. 42 ADDRESS I Slave address input 43 C2-IN I Chroma signal input. Open when not used. 44 CVBS2/Y2-IN I CVBS2 or Y2 signal input. Open when not used. 45 COMB SYS O Current color system discrimination result output. Pin 46 is also used for this output. 46 Fsc-OUT O Sub carrier output 47 AFC-FIL –– Connected to AFC detection filter 48 C1-IN I Chroma signal input. Open when not used.

Clamp pulse and horizontal blanking pulse are outputted.

ËVHiCXA2101Q-1 (ASSY:IC803) Baseband image signal processing »Block diagram

LC-30HV4M LC-30HV4H

» Pin mapping

Pin No. Pin Name Type Description

1 IN2-H I IN2-H: Independent H periodic signal input 2 IN2-V I IN2-V: Independent V periodic signal input 3 IN2-1 I IN2 system signal input 4 IN2-2 I 5 IN2-3 I 6 Vcc-MAT –– Power supply to selector or synchronous processing modules 7 IN3-H I IN3-H: Independent H periodic signal input 8 IN3-V I IN3-V: Independent V periodic signal input

9 IN3-1 I IN3 system signal input 10 IN3-2 I 11 IN3-3 I 12 GND-MAT –– GND for selector or synchronous processing modules 13 IN4-H I IN4-H: Independent H periodic signal input 14 IN4-V I IN4-V: Independent V periodic signal input 15 IN4-1 I IN4 system signal input 16 IN4-2 I 17 IN4-3 I 18 V-PH Connected to capacitor for holding Vsync peak 19 IN5-H I IN5-H: Independent H periodic signal input 20 IN5-V I IN5-V: Independent V periodic signal input 21 IN5-1 I IN5 system signal input 22 IN5-2 I 23 IN5-3 I 24 H-PH Connected to capacitor for holding Hsync peak 25 YG-OUT O Output of composite video signal for synchronous separation 26 YG-IN I Input of composite video signal for synchronous separation 27 IREF-SYNC Pin for reference current setting (approx. 4.6V) 28 VS-OUT O Output of HV of either IN1 system or IN2 - IN5 system selector signals. Signal is 29 HS-OUT O selected by I2C bus "YCBCR/MAT". 30 Vcc-OUT O Power supply to RGB system 31 SCP-IN I Sand-castle-pulse input 32 VTIM-IN I V timing pulse input 33 HP-IN I H pulse input 34 GND-OUT O GND for RGB system 35 R-OUT O RGB signal output. 37 G-OUT O When 100IRE white is inputted, signal is outputted at 2.6Vp-p. 39 B-OUT O 36 R-SH RGB AKB sample & hold 38 G-SH 40 B-SH 41 IK-IN I Input of returned reference pulse 42 PABL-FIL Peak ABL peak-hold 43 ABL-FIL Creates LPF when ABL control signal is received. 44 ABL-IN ABL control signal input 45 ABL-IN YM1/YS1 control signal input.

46 LR1-IN I Analog RGB1 signal input 47 LG1-IN I 48 LB1-IN I 49 LB1-IN I YM2/YS2 control signal input.

50 LR2-IN I Analog RGB2 signal input 51 LG2-IN I 52 LB2-IN I 53 ADDRESS I I2C bus slave address input 54 DPIC-C I Used to connect capacitor to GND pair for detection of dynamic picture

55 SCL I I2C bus SCl (serial clock) input 56 SCL I I2C bus SDA (serial data) input 57 DPIC-MUTE I Used to provide mute control to dynamic picture (black expansion) 58 CLP-C Connected to Y system clamp capacitor 59 VM-OUT O VM output. Differential waveform of Y signal is outputted with positive polarity. 60 61 YCBCR-SW I Input for switching signal inputted to INT/EXT SW. External input pin is selected when

62 ECR-IN I External Y/Cb/Cr signal input 63 ECB-IN I 64 EY-IN I

VM/SHP/COL-OFF Used to turn off VM, sharpness and color. Input level is judged on the three-value logic.

Input level is judged on the three-value logic. This pin enables VM to turn off when YM or YS reaches its specified value.

(black expansion)

this input is High.

ËVHIPD6408+-1S (ASSY:IC7001) 3-dimensional Y/C separation LSI with a built-in 4M bit memory

» Pin mapping

Pin No. Pin Name Type Description

1,33,48,75 DGND –– Digital part GND (common to I/O part grounding)

39,62,100 DVDD –– Digital part 2.5V Power supply

4-12,28-30, TEST01- Test terminal (OPEN or GND connection)

32,40-43, TEST26

78-85,99

13 EXTALTF O Extended 4fsc and an alternate-flag output terminal

14-23 EXTDYCO0- I/O Extended digital Input and output terminal

EXTDYCO9 24-25 DGNDRAM –– DRAM part GND 26-27 DVDDRAM –– DRAM part 2.5V power supply

31 DVDDIO –– I/O part 3.3V power supply

34-35 AGND –– OSC circuit part GND

36 XI I Standard clock input 37 XO O Standard clock reversal output 38 AVDD –– OSC circuit part 2.5V power supply 44 RPLL I Test input terminal (GND connection) 45 SLA0 I I2C-bus slave address selection input 46 SCL I I2C-bus clock input 47 SDA I/O I2C-bus clock output 49 AGND –– I2C-bus data input-and-output terminal 50 AVDD –– fsc DAC section 2.5V power supply 51 FSCO O fsc generator fsc output

52-53 AGND –– 8fsc PLL section grounding

54 FSCI I 8fsc PLL fsc input 55 AVDD –– 8fsc PLL section 2.5V Power supply 56 CKMD I CLK8 test mode selection (GND connection) 57 CLK8 I/O CKMD=0:8fsc clock output

CKMD=1:8fsc clock input 58 RSTB I System reset input (active low) 59 ST0 O Internal signal monitor output 60 ST1 O Internal signal monitor output 61 NSTD O Non-standard detection monitor output

(L : A standard judging, H : Non-standard judging)

63-72 DYCO0-DYCO9 I/O Digital input and output

73 ALTF O 4fsc alternate-flag output 74 LINE I Compulsive line processing selection input

(L:It is Usually processing H:Processing between compulsive) 76 KIL I External killer input

(L:It is usually Processing H:Compulsive Y/C separation stop) 77 CSI I Composite sync. input (active low)

2 TESTIC1 I The test terminal for IC sorting (GND connection)

3 TESTIC2 I The test terminal for IC sorting (GND connection) 86 AVDD –– Y-DAC and C-DAC part 2.5V power supply 87 CBPC O C-DAC phase compensation output 88 ACO O C-DAC analog C-signal output 89 AYO O C-DAC analog Y-signal output 90 CBPY O Y-DAC phase compensation output 91 AGND –– Y-DAC and C-DAC part grounding 92 AGND –– ADC section grounding 93 AYI I ADC analog composite signal input 94 VCLY O ADC clamp potential output 95 VRBY O ADC bottom standard voltage output 96 VRTY O ADC top standard voltage output 97 VCOMY O ADC standard voltage of the same phase 98 AVDD –– ADC section 2.5V power supply

LC-30HV4M LC-30HV4H

ËRH-iXA392WJZZ (ASSY:IC1901) PLD (Programmable Logic Device)

» Pin mapping

Pin No. Pin Name Type Description

1 NC –– Not connected 2 SP_CP2 I Input of clamp signal from synchronous separation IC (for 15K system) 3 SP_VD I Input of vertical synchronization signal from synchronous separation IC 4 GND –– GND 5 SP_HD I Input of horizontal synchronization signal from synchronous separation IC 6 VD3 O Output of vertical synchronization signal to synchronous separation IC 7 HD3 O Output of horizontal synchronization signal to synchronous separation IC 8 SP_CP1 I Input of clamp signal from synchronous separation IC (normal)

9 TDI I SP data input 10 TMS I SP mode input 11 TCK I SP clock input 12 TEXT_HD O TEXT_HD output 13 US_HD I RCA/TEXT horizontal synchronization signal input 14 TEXT_VD O TEXT_VD output 15 Vcc3.3V –– TEXT_VD output 16 US_VD I RCA/TEXT vertical synchronization signal input 17 GND –– GND 18 MODEA I Mode selection signal A 19 MODEB I Mode selection signal B 20 MODEC I Mode selection signal C 21 SELA I Input of HD switching control signal for main video chroma/RCA 22 SELO I Input of control signal for TEXT synchronization signal output 23 SELC I Input of control signal for TEXT synchronization signal output 24 TDO O ISP data output 25 GND –– GND 26 Vcc3.3V –– Power supply 27 VD1 I Input of vertical synchronization signal from main video chroma IC 28 HD1 I Input of horizontal synchronization signal from main video chroma IC 29 PL_VD O Vertical synchronization signal output 30 PL_HD O Horizontal synchronization signal output 31 PL_CP O Clamp signal output 32 PL_BLK O H blank signal output 33 MODED I Mode selection signal D 34 NC –– Not connected 35 Vcc3.3V –– Power supply 36 NC –– Not connected 37 CC_HD O Horizontal synchronization signal for closed caption 38 ow_vblk I Auto wide V blank signal input 39 HDS O Output of horizontal synchronization signal for PC I/F unit 40 VDS O Output of vertical synchronization signal for PC I/F unit 41 HD2 I Input of horizontal synchronization signal from sub video chroma IC 42 VD2 I Input of vertical synchronization signal from sub video chroma IC 43 clk I Clock input 44 NC –– Not connected

ËVHiTC90A69++1Y (ASSY:IC401/IC402) 3 Line Digital Comb Filter (NTSC/PAL)

» Pin mapping

Pin No. Pin Name Type Description

1 BIAS –– ADC bias 2 VRT –– ADC upper limit bias 3 VDD1 –– ADC and DAC power supply (analog system) 4 TESTI1 I TEST Input 5 VSS2 –– ADC GND (analog system) 6 VRB –– Video signal input 7 YCIN I ADC lower limit bias 8 TEST O Reset control and test control before shipping

9 KILLER I Y/C separation and vertical enhancer OFF 10 TESTI2 I Input for testing 11 VDD3 –– Power supply to logic (digital system) 12 VSS3 –– Logic and DRAM GND (digital system) 13 VDD2 –– DRAM power supply (digital system) 14 TESTI3 I Input for testing 15 SCL I I2C BUS clock input 16 SDA I I2C BUS data input 17 MODE1 O MODE1 output 18 TESTOUT I TEST Input 19 FSC I Clock input 20 VDD4 –– PLL power supply (analog system) 21 VSS4 –– PLL GND (analog system) 22 FIL I VCO control 23 PD O PLL detection output 24 VB2 –– DAC bias 2 25 YOUT O Luminance signal output 26 VSS1 –– DAC GND (analog system) 27 COUT O Colour signal output 28 VB1 –– DAC bias 1

LC-30HV4M LC-30HV4H

ËRH-iX3270CEZZ (ASSY:IC10001) 32-bit RISC Micro Processor

» Pin mapping

Pin No. Pin Name Type Description

34, 36-44, D[15:0] I/O Data bus D [15:0]

46, 48-52

23-26, 28, 30-32 D[23:16/PTA[7:0] I/O Data bus D [23:16] / I/O port A [7:0]

13-18, 20, 22 D[31:24/PTB[7:0] I/O Data bus D [31:24] / I/O port B [7:0]

86, 84, 82, 78-72, A[25:0] O Address bus A [15:0]

70-68-60, 56-53

96 CS0 O Chip select 0/ 98 CS2/PTK[0] O/(I/O) Chip select 2 / I/O port K [0]

99 CS3/PTK[1] O/(I/O) Chip select 3 / I/O port K [1] 100 CS4/PTK[2] O/(I/O) Chip select 4 / I/O port K [2] 101 CS5/CE1E/PTK[3] O/(I/O) Chip select 5 / CE1 (area 5SPCMIA)/O port K [3] 102 CS6/CE1B O Chip select 6 / CE1 (area 6SPCMIA)

87 BS/PTK[4] O/(I/O) Bus cycle start signal / I/O port K [4] 118 RAS3U/PTE[2] O/(I/O) RAS (area 3DRAM, SDRAM upper 32MB address) / I/O port E [2] 106 RAS3L/PTJ[0] O/(I/O) RAS (area 3DRAM, SDRAM upper 32MB address) / I/O port J [0] 119 RAS2U/PTE[1] O/(I/O) RAS (area 2DRAM, SDRAM upper 32MB address) / I/O port E [1] 107 RAS2L/PTJ[1] O/(I/O) RAS (area 2DRAM, SDRAM upper 32MB address) / I/O port JE [1] 108 110 CASLH/PTJ[3] O/(I/O) D15-D18 CAS (DRAM) / I/O port J [3] 112 CASHL/PTJ[4] O/(I/O) D23-D16 CAS (DRAM) / I/O port J [4] 113 CASHH/PTJ[5] O/(I/O) D31-D24 CAS (DRAM) / I/O port J [5] 116 CAS2L/PTE[6] O/(I/O) D31-D24 CAS (DRAM) / I/O port J [5] 117 CAS2H/PTE[3] O/(I/O) D31-D24 CAS (DRAM) / I/O port J [5]

89 WE0/DQMLL O D7-D0 selection signal/DQM (SDRAM)

90 WE1/DQMLU/WE O D7-D0 selection signal/DQM (SDRAM)

91 WE2/DQMUL/ O/(I/O) D23-D16 selection signal/DQM (SDRAM)/PCMCIA I/O port K [6]

92 WE3/DQMUU/ O/(I/O) D31-D24 selection signal/DQM (SDRAM)/PCMCIA I/O write I/O port K [7]

93 RD/WR O Read/Write switch signal

88 RD O Read strobe 105 CKE/PTK[5] O/(I/O) CK enable (for SDRAM only) / I/O port K [5] 123 WAIT I Hardware wait request

11-8 IRL[3:0]/IRQ[3:0]/ I Hardware wait request

12 IRQ4/PTH[4] I External interrupt request / I/O port H [4]

7 NMI I Non-maskable interrupt request 160 IRQOUT O Interrupt request output 182 WAKEUP/PTD[3] O/(I/O) Standby mode interrupt request output / I/O ports D [3] 159 TCLK/PTH[7] I/O TMU/RTC clock I/O / I/O port H [7] 191 DREQ0/PTD[4] I DMA request 0 / I/O port D [4] 114 DACK0/PTD[5] O/(I/O) DMA ACK 0 / I/O port D [5] 192 DREQ1/PTD[6] I DMA request 0 / I/O port D [6] 115 DACK1/PTD[7] O/(I/O) DMA ACK 1 / I/O port D [7] 189 DRAK0/PTD[1] O/(I/O) DMA ACK 1 / I/O port D [7] 190 DRAK1/PTD[0] O/(I/O) DMA ACK 0 / I/O port D [0] 171 RxD0/SCPT[0] I Receive data 0/SCI input port [0] 164 TxD0/SCPT[0] O Send data 0/SCI output port [0] 165 SCK0/SCPT[1] I/O Serial clock 0/SCI I/O port [1] 172 RxD1/SCPT[2] I Receive data 0/SCI input port [2] 166 TxD1/SCPT[2] O Send data 0/SCI output port [2] 167 SCK1/SCPT[1] I/O Serial clock 1/SCI I/O port [3] 174 RxD2/SCPT[4] I Receive data 0/SCI input port [4] 168 TxD2/SCPT[4] O Send data 2/SCI output port [4] 169 SCK2/SCPT[5] I/O Serial clock 2/SCI I/O port [5] 170 RTS2/SCPT[6] O/(I/O) Send request 2/SCI I/O port [6] 176 104 CE2B/PTE[5] O/(I/O) PC card 0 chip enable 2 / I/O port E [5] 126 IOIS16/PTG[7] I Write protect/input port G [7] 103 CE2A/PTE[[4] O/(I/O) PC card 1 chip enable 2 / I/O port E [4]

146, 149 CAP[1:2] –– PLL external capacitor pin [1:2]

156 EXTAL I External clock/crystal oscillator input 155 XTAL O Crystal oscillator output 162 CKIO I/O System clock I/O

5 EXTAL2 I RTC crystal oscillator input

4 XTAL O RTC crystal oscillator output

CASLL/CAS/PTJ[2]

ICIORD/PTK[6]

ICIOWR/PTK[7]

PTH[3:0]

CTS2/IRQ5/SCPT[7]

O/(I/O) D7-D0 CAS (DRAM)/CAS (SDRAM) / I/O port J [2]

I Send clear 2/enternal interrupt request/SCI input port [7]

» Pin mapping

Pin No. Pin Name Type Description

193 RESETP I Power-on reset request 124 RESETM I Manual reset request 122 BREQ I Bus request

121 BACK O Bus ACK 2, 1, 144 MD[2:0] I Clock mode select 196, 195 MD[4:3] I Area 0 bus width select

197 MD5 I Endian select

194 CA O Chip active 158, 157 STATUS[1:0]/ I/O Processor status [1:0] / I/O port J [7:6]

204-199 AN[5:0]/PTL[6:7] I A/D converter input [5:0]/input port L [5:0]

206, 207 AN[6:7]/DA[1:0]/ I/O A/D converter input [6:7] / D/A converter output [1:0] / input port L [6:7]

177-180, 185-188

184

120, 94 PTE[0]/PTE[7] I/O I/O port E [0]/I/O port E [7]

136-143

127-131, 135 PTG[6:0] I I/O port G [6:0]

125 PTH[5]/ADTRG I I/O port H [5]/analog trigger

151 PTH[6] I I/O port H [6]

21, 29, 35, 47, 59, Vcc –– Power supply (3.3V)

71, 81, 85, 97, 111, 134, 154,

163, 175, 183

145, 150 Vcc(PLL) –– Power supply (3.3V)

3 Vcc(RTC) –– Power supply (3.3V)

205 Avcc –– Analog power supply (3.3V)

19, 27, 33, 45, Vss –– Power supply (0V)

57, 69, 79, 83, 95,

109, 132, 152,

153, 161, 173, 181

147, 148 Vss(PLL) –– Power supply (0V)

6 Vss(TRC) –– Power supply (0V)

198, 208 Avss –– Analog power supply (0V)

PTJ[7:6]

PTL[6:7] PTC[7:0]/PINT[7:0] PTD[2]/RESETOUT

PTF[7:0]/PINT[15:8]

I/O I/O port C [7:0]/port interrupt [7:0] I/O I/O port D [2]/reset output

I I/O port E [7:0]/port interrupt [15:8]

LC-30HV4M LC-30HV4H

Ë9DK001-15079 (CXA3506R) (ASSY:IC10004) 3-channel, 8-bit, 120MSPS A/D converter amplifier PLL

» Pin mapping

Pin No. Pin Name Type Description

1 B/CbOUT O Amplifier output signal monitor 2 ADDRESS I I2C slave addressing 3 R/CrOUT O Amplifier output signal monitor 4 NC –– Not used 5 NC –– Not used 6 XPOWERSAVE I Power saving 7 DGNDREG –– Resistor GND 8 DVCCREG –– Resistor power supply

9 SDA I Control resistor data input 10 SCL I Control resistor clock signal input 11 XSENABLE I 3-wire control resistor enable signal input 12 SEROUT O 3-wire control resistor data read 13 3WIRE/I2C I I2C bus mode and 3-wire bus mode select 15 AVCCADREF –– ADC reference voltage power supply

16, 94 AVCCAD3 –– ADC analog power supply

17 VRT O ADC top reference voltage output

18, 92 DVCCAD3 –– ADC digital power supply

19, 32, 42, 54, DVCCADTTL –– ADC TTL output power supply

65,76,90

20, 33, 44, 55, DGNDADTTL –– ADC TLL output GND

67, 77, 89

21, 22, 24-28, 31 RA0~RA7 O R channel port A data output

23, 30, 43, 50, DGNDAD3 –– ADC digital GND

59, 66,7 9, 86

29, 80 AGNDAD3 –– ADC analog GND

34-41 RB0~RB7 O R channel port B data output

45-49, BA0~`BA7 O B channel port A data output

51-53

56-58, BB0~BB7 O B channel port B data output

60-64 68-75 GA0~GA7 O G channel port A data output

78, 81-85, GB0~GB7 O G channel port B data output

87,88

91 DVCCAD –– ADC digital power supply 93 VRB O ADC bottom reference voltage output 95 AGNDADREF –– ADC reference voltage GND 96 DVCCPLLTTL –– PLL TTL output power supply 97 DGNDPLLTTL –– PLL TTL output GND 98 XCLKCLK O CLK reverse output 99 1/2XCLK O CLK output

100 1/2CLK O I2CLK reverse output 101 DSYNC/ O I2CLK output 103 DIVOUT O DSYNC signal outut/DIVOUT signal output 104 UNLOCK O UNLOCK signal output 105 SOGOUT O Input of sink signal of Sink-On-Green signal 106 HOLD I Phase comparison disable signal input 107 XTLOAD I Programmable counter reset 108 EVEN/ODD I ADC sampling clock inverse pulse input 109 XCLKIN I Negative test clock input 110 CLKIN I Positive test clock input 111 SYNCIN1 I Sink signal input 1 112 SYNCIN2 I Sink signal input 2 113 CLPIN I Clamp pulse input 114 DVCCPLL –– PLL digital power supply 115 DGNDPLL –– PLL digital GND 116 AVCCVCO –– PLL VCO analog power supply 117 AGNDVCO –– PLL VCO analog GND 118 RC1 –– External PLL loop filter 119 RC2 –– External PLL loop filter 120 AVCCIR –– IREF analog power supply 121 IREF I Current input 123 AGNDIR –– IREF analog GND 124 G/YIN1 I G/Y signal input 1 125 AVCCAMPG –– G/Y amplifier power supply 126 G/YIN2 I G/Y signal input 2 127 AGNDAMPG –– G/Y amplifier power supply 128 G/YCLP –– Brightness clamp capacitor connection 129 B/CbCLP –– Brightness clamp capacitor connection 130 R/CrCLP –– Brightness clamp capacitor connection 132 SOGIN1 I Sink-On-Green signal input 1 133 B/CbIN1 I B/Cb signal input 1 134 AVCCAMPB –– B/Cb amplifier power supply 135 SOGIN2 I Sink-On-Green signal input 2 136 B/CbIN2 I B/Cb signal input 2 137 AGNDAMPB –– B/Cb amplifier GND

Pin No. Pin Name Type Description

139 R/CrIN1 I R/Cr signal input 1 140 AVCCAMPR –– R/Cr amplifier power supply 141 R/CrIN2 I R/Cr signal input 2 142 AGNDAMPR –– R/Cr amplifier GND 143 G/YOUT O Amplifier output signal monitor 144 DACTEST O Input for testing amplifier control resistor DAC

14, 102, 122, OUTDPGND –– GND

131, 138

LC-30HV4M LC-30HV4H

TROUBLE SHOOTING TABLE

(AVC System)

Power cannot be turned on. (The power LED on the front panel does not light up).

Is the power cable connected properly?

YES

Is fuse (F701) in order?

YES

Is the BU+5V line (pin (1) of P1703) in order?

YES

Are the wire harness and FFC connected properly?

YES

Does the voltage of the OVP line (pin (8) of P1702) fluctuate after power-on?

YES

Are DC/DC converter outputs and MOS-FET (Q1707 and Q1708) in order?

YES

Replace IC1703.

The power does not turn on even through the power button is pressed. (The red power LED on the front panel does not turn green or

is blinking red).

Is the system cable connected properly between the Display and the AVC System (DISPLAY OUTPUT1 and DISPLAY OUTPUT2)?

YES

Are the power switches of the Display and AVC System on?

YES

Are the UR+6V, UR+10V and UR+13V lines (pins (1), (2), (7) and (9) of P1702) in order?

YES YES

Plug the power cable connector and retry to turn on the power.

Replace the fuse and retry to turn on the power. If the fuse burns, check VA701, D701 and IC701 and replace if necessary.

Check the BU+5V line for correct impedance. (Measure the resistance between Pin 1 and GND).

Remove the cause of fault or short-circuit.

Check connections of the wire harness and FFC and reconnect if necessary.

Check power supply internal devices (IC701, IC721, PC702, Q702, D708 and D705).

Check DC/DC converter output lines and MOS-FET (Q1707 and Q1708) and replace if necessary.

Reconnect and retry to turn on the power.

Turn on the power switches of the Display and AVC System.

Is PS_ON (pin (3) of P1702) pulled high (3.5V)?

Check the PS_ON line.

Check IC1702 and its peripheral circuits.

YES

Are the D+1.8VCV line (pins (5) and (6) of P1701), D+3.3V line (pin (8) of P1701), D+5V line (pin (1) of P1701) and A+5V line (pin (3) of P1701) in order?

YES

Check the wire harness and FFC for proper connection.

Is the impedance of the UR+6V, UR+10V and UR+13V lines

YES

correct? (Measure the resistance between pins (1), (2), (7), (9) of P1072) and GND).

Check the UR+6V, UR+10V and UR+13V lines and devices on the lines.

Is D_POW (pins (32) and (34) of IC1703, pin (2) of IC1704 and pin (2) of IC1705) pulled high?

YES

Are MOS-FET (Q1707 and Q1708) and REG. IC (IC1704 and IC1705) in order?

Check each output line and replace MOS-FET (Q1707 and Q1708) and REG. IC (IC1704 and IC1705).

Check the D_POW line (pin (6) of IC1503).

Replace IC1703.

YES

No sound (1)

No sound (2)

No sound is heard from the speaker in all modes.

Check audio circuits of the Display.

Is the monitor audio output set to "Variable"? or

Is the headphone connected?

Are the audio signal outputs of IC2501 (multi-

sound processor) in order?

Pins (36) and (37) of IC2501 (SC1 OUT L/R).

Check IC2501 (multi-sound processor) and its

peripheral circuits.

Check lines and devices between pins (36), (37)

of IC2501 and pins (1), (3) of the AV unit

connector (P2502). (Q2509-10 and Q2513-4)

Set the monitor audio output to "Fixed".

Remove the headphone.

The speaker generates no sound when audio signals are inputted from an external device or a PC.

Check IC1301 (A switch) and its peripherals.

Are the audio signal outputs of IC1301 (AV

switch) in order?

Pins (52) and (54) of IC1301 (TV MAIN OUT L/R)

Are the audio signal inputs of IC1301 (AV

switch) in order?

Input 1: pins (2) and (4) of IC1301

Input 2: pins (9) and (11) of IC1301

Input 3: pins (16) and (18) of IC1301

Input 4: pins (23) and (25) of IC1301

PC input: pins (29) and (31) of IC1301

Are the audio signal input circuits of IC1301 (AV

switch) in order?

Input 1: Between pins (5), (14) of J1301 and pins

(2), (4) of IC1301

Input 2: Between pins (2), (11) of J1301 and pins

(9), (11) of IC1301

Input 3: Between pins (5), (14) of J1401 and pins

(16), (18) of IC1301

Input 4: Between pin (5), (7) and pins (23), (25) of

IC1301.

PC input: Between J2403 and pins (29), (31) of

IC1301

Are the audio signal inputs of IC2501 (multi-

sound processor) in order?

Pins (56) and (57) of IC2501 (SCI IN1 L/R)

YES

No monitor audio output or abnormal audio

The audio level is abnormal:

Is the monitor audio output set correctly?

"Variable" or "Fixed"

YES

No sound at all:

Are the audio outputs of IC2501 (Multi-sound

processor) in order?

Pins (34) and (33) of IC2501 (SC2 OUT L/R)

Check lines and devices between pins (34), (33)

of IC2501 and the monitor output (J1104). Also

check the audio mute circuit.

(Q2502-3 and Q1102-3)

YES

Check peripherals of the SR unit DISPLAY

OUTPUT 2 terminal (SC6000).

YES

Are audio signals applied to the AV unit

connectors (pins (1) and (3) of P2502)?

YES

The speaker generates no sound when TV signal is received.

Are the tuner audio inputs of IC2501 (multi-sound

processor) in order?

Pin (67) of IC2501 (sound IF1)

Pin (69) of IC2501 (sound IF2)

Is the audio signal applied to pin (15) of tuner

(TU1101) output?

Check B.P.F. of SIF1 and SIF2.

(IC1105-6, Q1101, Q1105-9, Q1119 and Q1120)

Check IC2501 (multi-sound processor) and its

peripheral circuits.

YES

Check TU1101 (U/V tuner) and its peripherals.

•AVC System

LC-30HV4M LC-30HV4H

LC-30HV4M

No image (1)

YES

No video image on INPUT1

Has "INPUT1" been selected on the Input

Select screen?

Select "VIDEO" of "INPUT1" on the Input

Select screen.

YES

Is the video signal applied to pin (1) of

IC1301 (AV switch)?

Check lines and devices between pin (23) of

J1103 (INPUT1) and pin (1) of IC1301.

YES

Select "VIDEO" of "INPUT2" on the Input

Select screen.

YES

(A) (B)

YES

Is the video signal applied to pin (8) of

IC1301 (AV switch)?

Check lines and devices between pin (20) of

J1103 (INPUT2) and pin (8) of IC1301.

NO video image on INPUT2

Has "INPUT2" been selected on the Input

Select screen?

No image (2)

YES

NO video image on INPUT3

Has "INPUT3" been selected on the Input

Select screen?

Select "VIDEO" of "INPUT3" on the Input

Select screen.

YES

Is the video signal applied to pin (15) of

IC1301 (AV switch)?

Check lines and devices between pin (20) of

J1102 (INPUT3) and pin (15) of IC1301.

YES

Select "VIDEO" of "INPUT4" on the Input

Select screen.

YES

Is the video signal applied to pin (22) of

IC1301 (AV switch)?

Check lines and devices between pin (3) of

J2404 (INPUT4) and pin (22) of IC1301.

NO video image on INPUT4

Has "INPUT4" been selected on the Input

Select screen?

No image (3)

YES

No Y/C image on INPUT2

Has "INPUT2" been selected on the Input

Select screen?

Select "S-VIDEO" of "INPUT2" on the Input

Select screen.

YES

Is the Y/C signal applied to pins (10) and

(12) of IC1301 (AV switch)?

Check lines and devices between pins (3), (4)

of SC1101 (INPUT1) and pins (10), (12) of

IC1301.

YES

Select "S-VIDEO" of "INPUT3" on the Input

Select screen.

YES

(E) (F)

YES

Is the Y/C signal applied to pins (17) and

(19) of IC1301 (AV switch)?

Check lines and devices between pins (9),

(10) of INPUT2 (SC1102 1/2) and pins (17),

(19) of IC1301.

No Y/C image on INPUT3

Has "INPUT3" been selected on the Input

Select screen?

No image (4)

YES

No Y/C image on INPUT4

Has "INPUT4" been selected on the Input

Select screen?

Select "Y/C" of "INPUT4" on the Input Select

screen.

YES

Is the Y/C signal applied to pins (24) and

(26) of IC1301 (AV switch)?

Check lines and devices between pins (3), (4) of

J2401 (INPUT4) and pins (24), (26) of IC1301.

YES

(G)

LC-30HV4H

•AVC System

LC-30HV4M

(A),(C),(E),(G) (B),(D),(F)

<Video signal> Are the MAIN video signal and SUB video signal sent from pin (56) and pin (44) of IC1301 respectively?

<Y/C signal> Are the MAIN-Y/C signal, SUB-Y/C signal sent from pin (56), pin (58), pin (44) and pin (47) of IC1301 respectively

Check IC1301 (AV switch) and its peripheral

circuits.

<PAL/SECOM> Is the VIDEO SIGNAL applied to pin (7) of IC401 (MAIN COMB FILTER) and pin (7) of IC402 (SUB COMB FILTER) respectiv

ely?

<NTSC> Is the VIDEO signal applied to pin (93) of IC7001 (MAIN COMB FILTER) and pin (7) of IC402 (SUB COMB FILTER) respectively

<Y/C> Are the MAIN/SUB signal applied to pins (44)/(43) of IC801 (MAIN VIDEO CHROM) and pins (5)/(7) of IC802 (SUB VIDEO CHROMA

), respectively?

Check lines and devices between IC1301

and IC401/IC7001/IC402/IC403/IC7003/

IC404/IC801/IC802, etc.

YES

Are the MAIN-Y/C signal applied to pins

(41), (5) and pins (39), (7) of IC801 (MAIN

VIDEO CHROMA), respectively?

<NTSC>

Are the MAIN-Y signal and MAIN-C signal

applied to pin (1) (TP812) and pin (48) of

IC801 (MAIN VIDEO CHROMA)

respectively?

Check lines and devices between IC401

and IC801.

(IC403, Q415, Q618-9 etc.)

<Y/C>

Are the MAIN-Y signal and MAIN-C signal

applied to pin (44) and pin (43) of IC801

(MAIN VIDEO CHROMA) respectively?

<NTSC>

Check lines and devices between IC7001

and IC801.

(IC7003, Q7005-6, Q616-617, etc)

<Y/C>

Check lines and devices between IC1301

and IC801.

(Q827, Q403, Q404, etc.)

Are the MAIN-Y/Cb/Cr signals sent from

pins (21), (22) and (23) of IC801

respectively?

Check IC801 (MAIN VIDEO CHROMA) and

its peripheral circuits.

Are the MAIN-Y/Cb/Cr signals applied to pins (69), (68)

and (67) of IC803 (RGB DECODER) respectively?

Check lines and devices between IC801

and IC803. (IC814, Q814, Q815, etc.)

Are the MAIN-R/G/B signals sent from pins

(35), (37) and (39) of IC803 respectively?

Check IC803 (RGB DECODER) and its

peripheral circuits.

Are the MAIN-R/G/B signals applied to pins

(3), (7) and (10) of FL810 (6.7/30 MHz

L.P.F.) respectively?

Are the

MAIN-R/G/B

signals sent from pins

(19), (15) and (12) of FL810 respectively?

Check lines and devices between IC803

and FL810.(Q801-3 etc.)

Is cutoff frequency setting pin (17) of FL810

(6.7/30 MHz L.P.F.) pulled high?

Check FL810 (6.7/30 MHz L.P.F.) and its

peripheral circuits.

Check the PC I/F unit.

<Video>

Are the SUB-Y signal and SUB-C signal

applied to pin (1) and pin (48) of IC802

(SUB VIDEO CHROMA) respectively?

<Video>

Check lines and devices between IC402

and IC802.

(IC404, Q416-8, etc.)

<Y/C>

Are the SUB-Y signal and SUB-C signal

applied to pin (5) and pin (7) of IC802

(SUB VIDEO CHROMA) respectively?

<Y/C>

Check lines and devices between IC1301

and IC802.

(Q828, Q409, Q410, etc.)

Are the SUB-Y/Cb/Cr signals sent from pins

(21), (22) and (23) of IC802 respectively?

Check IC802 (SUB VIDEO CHROMA) and

its peripheral circuits.

Are the

SUB-Y/Cb/Cr

signals applied to

Q901-2, Q903-4 and Q905-6 (6.7 MHz

L.P.F.) respectively?

Check lines and devices between IC802

and Q901-2/Q903-4/Q905-6 (6.7 MHz

L.P.F.).

Are the SUB-R/G/B signals sent from Q901-

2, Q903-4 and Q905-6 (6.7 MHz L.P.F.)

respectively?

Check peripherals of Q901-2, Q903-4 and

Q905-6 (6.7 MHz L.P.F.).

LC-30HV4H

•AVC System

LC-30HV4M

Check the PC I/F unit.

<When COMPONENT signal is received> No image (5)

No COMPONENT image on INPUT1

Has "INPUT1" been selected

on the Input Select screen?

Are RGB signals applied to

pins (63), (59) and (61) of

IC1401 (AV switch)?

Select "COMPONENT" of

"INPUT1" on the Input

Select screen.

Check lines and devices

between pins (26), (17), (8) of

J1103 (INPUT1) and pins

(63)

(59)

(61) of IC1301.

YES

No COMPONENT image on INPUT3

Has "INPUT3" been

selected on the Input Select

screen?

Select "COMPONENT" of

"INPUT3" on the Input

Select screen.

Are RGB signals applied to

pins (5), (7) and (9) of

IC1401 (AV switch)?

Check lines and devices

between pins (26), (17), (8)

of J1104 (INPUT3) and pins

(5), (7), (9) of IC1301.

Are the MAIN video signal sent from pin (46)/(50)/(48), PASS signal and SUB video signal sent from pins (40)/(44)/(42) of IC140

1 respectively?

Are Y/Cb/Cr signals applied to pins

(19), (18) and (17) of IC801 (MAIN

VIDEO CGROMA) respectively?

Check lines and devices between

pins (46), (50), (48) of IC1401

and pins (19), (18), (17) of IC801.

Are the MAIN-Y/Cb/Cr signals

sent from pins (21), (22) and

(23) of IC801 respectively?

Check IC801 (MAIN

VIDEO CHROMA) and its

peripheral circuits.

Are the MAIN-Y/Cb/Cr signals

applied to pins (69), (68)

and(67) of IC803 respectively?

Check lines and devices

between IC801 and IC803.

(IC814, Q814-5, etc.)

Are Y/Cb/Cr signals applied to

pins (5), (4) and (3) of IC803

(RGB DECODER) respectively?

Check lines and devices between

pins (34), (38), (36) of IC1401

and pins (5), (4), (3) of IC803.

Are the MAIN-R/G/B signals

sent from pins (35), (37) and

(39) of IC803 respectively?

Check IC803 (RGB DECODER)

and its peripheral circuits.

Are the MAIN-R/G/B signals

applied to pins (3), (7) and

(10) of FL810 (6.7/30 MHz

L.P.F.) respectively?

Check lines and devices

between IC803 and FL810.

(Q801-3 etc.)

Are the MAIN-R/G/B signals

sent from pins (19), (15) and

(12) of FL810 respectively?

The cutoff frequency

(6.7/30MHz)of FL810 (L.P.F.) is

switched as follows depending

on the input signals:

Status of pin (17) for setting the

cutoff frequency of FL810 (6.7/30

MHz L.P.F.)

<525i system>: High

<525P/1125i/750P system>: Low

Check FL810 (6.7/30 MHz L.P.F.)

and its peripheral circuits.

Are Y/Cb/Cr signals applied

to pins (19), (18) and (17)

of IC802 (SUB VIDEO

CHROMA) respectively?

Check IC1401 (AV switch)

and its peripheral circuits.

Check lines and devices

between pins (40), (44), (42)

of IC1401 and pins (19), (18),

(17) of IC802.

Are the SUB-Y/Cb/Cr signals

sent from pins (21), (22) and

(23) of IC802 respectively?

Check IC802 (SUB VIDEO

CHROMA) and its peripheral

circuits.

Are the SUB-Y/Cb/Cr

signals applied to Q901-2,

Q903-4 and Q905-6 (6.7

MHz L.P.F.) respectively?

Check lines and devices between

IC802 and Q901-2/Q903-4/Q905-

6 (6.7 MHz L.P.F.).

Are the SUB-R/G/B signals

sent from Q901-2, Q903-4

and Q905-6 (6.7 MHz

L.P.F.) respectively?

Check peripherals of Q901-

2/Q903-4/Q905-6 (6.7 MHz

L.P.F.).

LC-30HV4H

•AVC System

LC-30HV4M

No image (6)

No image when TV signal is received

Check the PC I/F unit.

No teletext screen appears.

Is the video signal on tuner image output

pin (19)?

Check peripherals of the tuner (TU1101)

and replace if necessary.

Is the video signal on pin (5) of IC1106

(LEVEL ADJ.) or TP1101?

Is the video signal applied to pin (63) of

IC1301 (AV switch)?

Is the level control signal sent from pin (1)

of IC1104 to pin (6) of IC1103 (AV switch)?

YES

Check lines and devices between pin (5) of

IC1103 and pin (63) of IC1301.

Are the MAIN/SUB video signal sent from

pin (56) of IC1301 and pin (44) of IC1301

respectively?

Check IC1301 (AV switch) and its

peripheral circuits.

Is the teletext signal received (is a teletext-supporting receiver connected to the video input

terminal) and TELETEXT selected on the remote controller?

Select TELETEXT in an appropriate manner.

Is the video signal applied to pin (21) of

IC1601 (TELETEX CPU)?

Check lines and devices between pin (56) of

IC1301 (AV switch) and pin (21) of IC1601.

(Q1612, Q1606-8 and IC1604)

Is the text signal sent from pins (57), (58)

and (59) of IC1601?

Check IC1601 and its peripheral circuits.

Is the text signal applied to pins (57), (53)

and (55) of IC1401 (AV switch)?

Check lines and devices between pins (57), (58),

(59) of IC1601 and pins (57), (53), (55) of IC1301.

YES

<PAL/SECAM> Is the video signal applied to pin (7) of IC401 (MAIN COMB FILTER) and pin (7) of IC402 (SUB COMB FILTER)?

<NTSC> Is the video signal to pin (93) of IC7001 (MAIN COMB FILTER) and pin (7) of IC402 (SUB COMB FILTER)?

Are the MAIN-Y/C signals applied to pins

(4)/(5) and pins (39)/(7) of IC801 (MAIN

VIDEO CHROMA), respectively?

<NTSC>

Are the MAIN-Y/C signals applied to pin

(1) (TP812) and pin (48) of IC801 (MAIN-

VIDEO CHROMA) respectively?

Check lines and devices between IC401

and IC801.

(IC403, Q415, Q618-19 etc.)

<NTSC>

Check lines and devices between IC7001

and IC801.

(IC7003, Q7005-6, Q616-17 etc.)

Are the MAIN-Y/Cb/Cr signals sent from pins

(21), (22) and (23) of IC801 respectively?

Check IC801 (MAIN VIDEO CHROMA)

and its peripheral circuits.

Are the MAIN-Y/Cb/Cr signals applied to

pins (69), (68) and (67) of IC803 (RGB

DECODER) respectively?

Check lines and devices between IC801

and IC803. (IC814, Q814, Q815, etc.)

Are the MAIN-R/G/B signals sent from pins

(35), (37) and (39) of IC803 respectively?

Check IC803 (RGB DECODER) and its

peripheral circuits.

Are the MAIN-R/G/B signals sent from pins

(19), (15) and (12) of FL810 respectively?

Is cutoff frequency setting pin (17) of

FL810 (6.7/30 MHz L.P.F.) pulled high?

Check FL810 (6.7/30 MHz L.P.F.) and its

peripheral circuits.

Are the MAIN-R/G/B signals applied to pins

(3), (7) and (10) of FL810 (6.7/30 MHz

L.P.F.) respectively?

Check lines and devices between IC803

and FL810.(Q801-3 etc.)

Check lines and devices between IC1301

and IC7001/IC401/402.

Check lines and devices between IC402

and IC802. (IC404, Q416-8, etc.)

Are the SUB-Y/C signals applied to pin (1)

(TP813) and pin (48) (TP407) of IC802

(SUB VIDEO CHROMA) respectively?

Are the SUB-Y/Cb/Cr signals sent from pins

(21), (22)and (23) of IC802 respectively?

Check IC802 (SUB VIDEO CHROMA) and

its peripheral circuits.

YES

Are the

SUB-Y/Cb/Cr

signals applied to Q901-2,

Q903-4 and Q905-6 (6.7 MHz L.P.F.) respectively?

Check lines and devices between IC802 and

Q901-2/Q903-4/Q905-6 (6.7 MHz L.P.F.).

YES

Are the SUB-R/G/B signals sent from Q901-2,

Q903-4 and Q905-6 (6.7 MHz L.P.F.) respectively?

YES

Check the PC I/F unit.

Check Q901-2, Q903-4 and Q905-6 (6.7

MHz L.P.F.) and their peripheral circuits.

LC-30HV4H

•AVC System

LC-30HV4M

YES

No TV, video and component picture

Is input at pins (124),

(133) and (139) of

IC10004 normal?

Check CN10006 and

its peripheral circuits.

YES

Are pins (63)/(50)/(31) of

IC10310 (TL10207, TL10208

and TL10211) normal?

Check CN10006 and its

peripheral circuits.

YES

Is digital output section of

IC10004 normal?

Check IC10004 and

its peripheral circuits.

YES

Is digital output section

of IC10310 normal?

Check IC10310 and its

peripheral circuits.

YES

Is digital output of

IC10025 normal?

Check IC10025 and

its peripheral circuits.

No PC picture

YES

Is signal at pins (21), (22), (24), (25), (27), (28), (30) and (31)

of IC10413? (The signal is of high frequency (a little less

than 1GHz). Pay due attention to it during observation.)

Check the Display. Check the PC I/F unit.

No MAIN picture on single screen and dual screen.

No SUB picture on dual screen

YES

Is input at pins (126),

(136) and (141) of

IC10004 normal?

Check CN10008 and its

peripheral circuits.

YES

Is digital output section

of IC10004 normal?

Check IC10004 and its

peripheral circuits.

YES

Is digital output of

IC10025 normal?

Check IC10025 and its

peripheral circuits.

No Monitor image <VIDEO>

YES

Is the video signal sent from

pin (41) of IC1301 (AV

switch)?

YES

Check lines and devices

between pin (41) of IC1301

and pin (20) of J1104

(MONITOR output).

(Q1403 )

Check IC1301 and its

peripheral circuits.

No monitor image <S-VIDEO>

YES

Are Y and C signals sent from

pins (39) and (37) of IC1301

(AV switch) respectively?

YES

Check lines and devices between

pins (39)/(37) of IC1301 and pins

(3)/(4) of SC1102 (S-VIDEO of

MONITOR output).

(Q1401-2)

Check that input signal is

S-VIDEO.

Check IC1301 and its

peripheral circuits

No image (7)

No image (8)

LC-30HV4H

•AVC System

YES

Is HD1/VD1 outputted to pins (9)

and (4) of IC801 (MAIN VIDEO

CHROMA), respectively?

Check IC801 and its peripheral

circuits.

YES

Is HD2/VD2 outputted to

pins (9) and (4) of IC802

(SUB VIDEO CHROMA),

respectively?

Check IC802 and its

peripheral circuits.

YES

Is HD1/VD1 outputted to pins

(28) and (27) of IC1901 (PLD),

respectively?

Check the circuit between pins

(9)/(4) of IC801 and pins

(27)/(28) of IC1901.

YES

Is HD2/VD2 inputted to pins

(41) and (42) of IC1901

(PLD), respectively?

Check the circuit

between pins (9)/(4) of

IC802 and pins

(41)/(42) of IC1901.

YES

Check IC1901 and its

peripheral circuits.

YES

Is HDS/VDS inputted to pins

(39) and (40) of IC1901

(PLD), respectively?

Check IC1901 and its

peripheral circuits.

YES

Is HD3/VD3 inputted to pins

(14) and (13) of IC604 (Sync.

Sep), respectively?

Check the circuit between pins

(7)/(6) of IC1901 and pins

(14)/(13) of IC604.

YES

Is SP-HD/SP-VD/SP-CP

outputted to pins (16) , (28) and

(15) of IC604, respectively?

Check IC604 and its peripheral

circuits.

YES

Is SP-HD/SP-VD/SP-CP

inputted to pins (5) , (3) and (8)

of IC1901, respectively?

Check the circuit between pins

(16)/(28)/(15) of IC604 and pins

(5)/(3)/(8) of IC1901.

YES

Is PL-HD/PL-VD/PL-CP/PL-BLK

outputted to pins (30), (29), (31)

and (32) of IC1901, respectively?

Check IC1901 and its

peripheral circuits.

YES

Is Hsync/Vsync/SCP inputted to

pins (1) , (2) and (31) of IC803

(RGB DECODER), respectively?

Check the circuit between pins

(30)/(29)/(31)/(32) of IC1901

and pins (1)/(2)/(31) of IC803.

YES

Is HDM/VDM outputted to pins

(5) and (7) of IC807,

respectively?

Check IC807 and its peripheral

circuits.

YES

Is HS/VS outputted to pins

(29) and (28) of IC803,

respectively?

Check IC803 and its peripheral

circuits.

Check PC I/F Unit.

Is HD3/VD3 outputted to pins

(7) and (6) of IC1901 (PLD),

respectively?

YES

Is HD_50/VD_50 outputted to

pins (79) and (80) of IC803,

respectively?

Check IC803 and its peripheral

circuits.

YES

Is HD_50/VD_50 inputted to

pins (3) and (4) of IC604,

respectively?

Check the circuit between pins

(79)/(80) of IC803 and pins

(3)/(4) of IC604.

YES

Check IC604 and its

peripheral circuits.

Is SP-HD/SP-VD outputted to

pins (5) and (3) of IC1901,

respectively?

Check the circuit between pins

(16)/(28) of IC604 and pins

(5)/(3) of IC1901.

Is SP-HD/SP-VD outputted to

pins (16) and (28) of IC604,

respectively?

Synchronization failure

•AVC System

LC-30HV4M LC-30HV4H

LC-30HV4M

LCD LED: ON

AVC-C LED: OFF

Check power switch, AC power cable and power unit of AVC-C.

LCD LED: OFF

AVC-C LED: ON

Check power switch, AC power cable and power unit of LCD.

LCD LED: BLINKING

(Once per second)

Check system cable, power switch, AC power cable and power unit of AVC-C.

LCD LED: BLINKING

(4 times per second)

Check cooling fan, IC2102 and peripheral circuits.

LCD LED: ON IN RED

AVC-C LED: ON IN RED

LCD LED never turns to

green.

Check power switch, AC power cable and power unit of LCD.

AVC-C LED never turns

to green.

Check power switch, AC power cable and power unit of AVC-C.

LCD panel backlight

never lights up.

Reset the lamp error count. (See adjustment procedure.)

Check Q6551, Q6554, Q6557, Q6560, Q6563, and Q6566 as well as peripheral circuits.

Initialize EEPROM. (See

adjustment procedure.)

If not successful: Check power switch, AC power cable and power unit of LCD.

No Power

LC-30HV4H

TROUBLE SHOOTING TABLE

(Display)

TROUBLE SHOOTING TABLE (Continued)

No 800-MHz signal input at pins (186), (187), (191), (192), (196) and (197) of IC2201.

Check system cable and connector.

No signal output from pins (95), (96) and (97) of IC2201.

Check IC2201 and peripheral circuits.

Disconnect system cable and operate LCD independently. (Blue screen appears.)

Check system cable, connector and peripheral circuits.

Is each pin normal at IC4701?

Faulty: Check IC4701 and peripheral circuits.

Is each pin normal at IC4901?

Faulty: Check IC4901 and peripheral circuits.

Is each pin normal at IC4551?

Faulty: Check IC4551 and peripheral circuits.

Check SC4501, -4502, -4503 and -4504 and their cables.

Check outputs of main unit and headphone.

Is signal waveform normal at Q2105 and Q2106?

Faulty: Check Q2105 and Q2106 and peripheral circuits.

Is signal waveform normal at IC3802 and IC3804?

Faulty: Check IC3802 and IC3804 and peripheral circuits.

Is signal waveform normal at IC3805, IC3806 and IC3807?

Faulty: Check IC3805, IC3806 and IC3807 and peripheral circuits.

Check IC3809 and peripheral circuits.

1No Picture

2No Sound

(Display)

LC-30HV4M LC-30HV4H

CHASSIS LAYOUT (AVC System)

87109654321

LC-30HV4M LC-30HV4H

1716 1918151413121110

LC-30HV4M LC-30HV4H

CHASSIS LAYOUT (Display)

87109654321

LC-30HV4M LC-30HV4H

1716 1918151413121110

LC-30HV4M LC-30HV4H

SYSTEM BLOCK DIAGRAM (AVC System)

87109654321

LC-30HV4M LC-30HV4H

1716 1918151413121110

LC-30HV4M LC-30HV4H

SIGNAL FLOW BLOCK DIAGRAM (AVC System)

87109654321

LC-30HV4M LC-30HV4H

1716 1918151413121110

LC-30HV4M LC-30HV4H

POWER SYSTEM BLOCK DIAGRAM (AVC System)

87109654321

LC-30HV4M LC-30HV4H

1716 1918151413121110

LC-30HV4M LC-30HV4H

PC I/F UNIT BLOCK DIAGRAM (AVC System)

87109654321

LC-30HV4M LC-30HV4H

1716 1918151413121110

LC-30HV4M

2 P

LC-30HV4H

SIGNAL BLOCK DIAGRAM (Display)

MAIN UNIT

IC2202

HDCP(KEY)

EEPROM

KEY IIC

TMDS

SC2201

DISPLAY

INPUT 1

SC2202

DISPLAY

INPUT 2

DDC IIC

DDC 5V

CONTROL

KEY

IC2201

TMDS

RECEIVER

IC2204

DDC

EEP-ROM

IC 2002

RESET

IC2001

MICRO

PROCESSOR

R/C RECEIVER

OPC, LED

QO23-0, QE23-0 HSYNC, VSYNC, CLO

CONFIG IIC

IC C

Q2004, Q2005

LEVEL

CONVERTER

AUDIO UNIT

J201

SPEAKER(L)

PLUG

OPERATION UNIT

SRS/FOCUS

AUDIO PROCESSOR

SOUND CONTROL

SOUND-AMP

IC3802

IC3804

IC3809

R/C,LED UNIT

IC3803

EXTENSION

DAC

J202

SPEAKER(R)

PLUG

87109654321

QE23-0

VSYNC, CLOCK

IC2203 CONFIG

EEPROM

LC-30HV4M LC-30HV4H

LCD CONTROL(DIGITAL) UNIT

IC4902

FIFO MEMORY

IC4901

OSD DRIVE(ODD)

IC4702

FIFO MEMORY

LCD

PANEL

IC4701

OSD DRIVE(EVEN)

IC4551

IC2003

EEPROM

INVERTER-1 UNIT

INVERTER-2 UNIT

LCD CONTROL

OFL

Q6551 Q6554 Q6557 DC/AC

INVERTER

DRIVE

Q6560 Q6563 Q6566 DC/AC

INVERTER

DRIVE

T6551 T6552 T6553 T6554 T6555 T6556 DC/AC TRANS

T6557 T6558 T6559 T6560 T6561 T6562

DC/AC TRANS

BACK LIGHT

1716 1918151413121110

LC-30HV4M

1 R

LC-30HV4H

POWER UNIT BLOCK DIAGRAM (Displa y)

OPERATION

SW136

AC SW

P131

INVERTER GND

+5V

LCD CONTROL(DIGITAL)

IC4112

3.3V REG

VSH+3.3V

FAN

IC4556

5V REG

DAC+5V

MAIN (TMDS/MICOM)

P2103

IC4559 IC4560

13V REG

VLS+13V

+8V

FAN VCC

IC2102 8V REG

P6907

AUDIO

IC3801 9V REG

+9V

IC3811

5V REG

+13V

P3801

+5V

P2106

+5V

P2104

P2003

+2.5V

+3.3V

+5V STB

IC2105

2.5V RE

IC2104

3.3V RE

IC2 5V

R/C.LED

+5V STB

P101

87109654321

LC-30HV4M LC-30HV4H

559 560

REG

+13V

IC2102 8V REG

IC4558

-6V REG

VEE-6V

IC4557 6V REG

IC4555

34V REG

VGH+34V

POWER

P4101

(CN5)

+13V

IC4516

3.3V REG

IC4515

2.5V REG

13V IC13V PANEL

B+3.3V CONT

B+2.5V CONT

INVERTER1

IC2105

2.5V REG

IC2104

3.3V REG

IC2101 5V REG

+13V

P2102

P2101

STB+6V

(CN4)

(CN3)

(CN2)

+10V

+13V

STB+6V

CN1

AC IN

INV.VCC

P6557

(CN7)

INVERTER2

P6564

INV.VCC

1716 1918151413121110

LC-30HV4M LC-30HV4H

OVERALL WIRING DIAGRAM-1/2 (AVC system)

87109654321

LC-30HV4M LC-30HV4H

1716 1918151413121110

LC-30HV4M LC-30HV4H

OVERALL WIRING DIAGRAM-2/2 (AVC system)

87109654321

LC-30HV4M LC-30HV4H

1716 1918151413121110

LC-30HV4M LC-30HV4H

OVERALL WIRING DIAGRAM (Display)

87109654321

LC-30HV4M LC-30HV4H

1716 1918151413121110

LC-30HV4M LC-30HV4H

DESCRIPTION OF SCHEMATIC DIAGRAM

VOLTAGE MEASUREMENT CONDITION:

1. When the exclusive-use AC adapter is used, the colour bar signal of colour bar generator for service is input to get the normal screen. When the audio is minimized, the voltage value is measured with the 20 kΩ/V tester.

INDICATION OF RESISTOR & CAPACITOR:

RESISTOR

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

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

3. All resistors are Carbon type, unless otherwise noted.

C : Solid W : Cement S : Oxide Film T : Special N : Metal Coating

CAPACITOR

1. All capacitors are mF, unless otherwise noted. (P=pF=mmF).

2. All capacitors are Ceramic type, unless otherwise noted. (ML) : Mylar (T A) : Tantalum (PF) : Polypro Film (ST) : Styrol

CAUTION:

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

IMPORTANT SAFETY NOTICE:

PARTS MARKED WITH IMPORTANT FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO REPLACE THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE SAFETY AND PERFORMANCE OF THE SET.

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