Sharp LC-30HV2E Service Manual

LC-30HV2E

SERVICE MANUAL

オートセーブ

オンタイマー

電源

MODEL

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

LCD TV

LC-30HV2E

CONTENTS

Page

» IMPORT ANT SERVICE SAFETY PRECAUTION .....2

» SPECIFICATIONS................................................3

» OPERA TION MANUAL ........................................4

» DIMENSIONS ....................................................10

» REMOVING OF MAJOR PARTS........................12

» ADJUSTMENT PROCEDURES.........................19

» DESCRIPTION OF MAJOR IC FUNCTIONS ....30

» TROUBLE SHOOTING TABLE ..........................56

»PRINTED WIRING BOARD BLOCK DIAGRAM..63

» LCD DISPLAY CHASSIS LAYOUT ....................65

» AVC SYSTEM BLOCK DIAGRAM ..................... 68

» AVC SIGNAL FLOW BLOCK DIAGRAM ...........70

» AVC DC/DC CONVERTER BLOCK DIAGRAM .72

» AVC POWER BLOCK DIAGRAM ......................74

» PC I/F BLOCK DIAGRAM..................................76

» LCD DISPLAY SIGNAL BLOCK DIAGRAM...... 76

» LCD DISPLAY POWER UNIT BLOCK

DIAGRAM ..........................................................76

» AVC OVERALL WIRING DIAGRAM .................. 82

» LCD DISPLAY OVERALL WIRING DIAGRAM ..86

» DESCRIPTION OF SCHEMATIC DIAGRAM.....88

» WAVEFORMS ....................................................89

» SCHEMATIC DIAGRAM ....................................90

» PRINTED WIRING BOARD ASSEMBLIES .....160

» PARTS LIST.....................................................175

» PACKING OF THE SET ...................................215

Page

SHARP CORPORATION

LC-30HV2E

2 2

IMPORTANT SERVICE SAFETY PRECAUTION

Service work should be perfomed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow:

WARNING

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

or higher, sensitivity or measure the AC voltage drop

1. For continued safety, no modification of any circuit should be attempted.

2. Disconnect AC power before servicing.

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,

CAUTION: FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE. AVC SIDE: F701 (T2A, 250V), F702 (T2A, 250V), F1702 (T4AL, 250V) FUSE. LCD SIDE: F1(T3.5AL, 250V), F6551, F6552, F6553, F6554, F6555, F6556 (T2.5AL, 250V)

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 milliamp. peak AC.) or more is excessive and

BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)

indicates a potential shock hazard which must be corrected before returning the monitor to the owner .

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

DVM

AC SCALE

50k ohm

10W

insulators, etc.

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

» Plug the AC cord directly into a 110~240 volt AC outlet,

and connect the DC power cable into the receiver's

0.15 µF

TEST PROBE

DC jack. (Do not use an isolation transformer for this test).

» Using two clip leads, connect a 1.5k ohm, 10 watt

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

TO EXPOSED METAL PAR TS

CONNECT TO KNOWN EARTH GROUND

ground connected to an earth ground.

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

SAFETY NOTICE

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

and shaded areas in the

Schematic Diagrams

For continued protection, replacement parts must be identical to those used in the original circuit. The use of a substitute replacement parts which do not have the same safety characteristics as the factory recommended replacement parts shown in this service manual, may create shock, fire or other hazards.

components having such features are identified by “ å”

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

Replacement Parts List

and

Specifications

Item 30" LCD COLOUR TV, Model:LC-30HV2E

LCD panel 30" Advanced Super View & BLACK TFT LCD Number of dots 2,949,120 dots (1280 ✕ 3 ✕ 768dots)

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

Function

TV-standard (CCIR) Receiving

Channel

VHF/UHF CATV

B/G, D/K, I, L/L’ E2–E69ch, F2–F10ch, I21–I69ch, IR A–IR Jch Hyper-band, S1–S41ch

LC-30HV2E

TV-Tuning System

STEREO/BILINGAL NICAM/IGR Brightness 430 cd/m Lamp life 60,000 hours (at normal mode) Viewing angles H : 170° V : 170° Audio amplifier 10W x 2 Speakers 8cm Ø 2pcs Terminals SCART (AV in, RGB in, TV out)

OSD language

Power Requirement Power

Consumption

Weight

AVC

Rear INPUT 1

System

Front

DISPLA

YHeadphones

AVC System Display AVC System

INPUT 2 INPUT 3 ANTENNA 75 Ω Din Type

Monitor OutAudio (Variable, Fixed), S-VIDEO out, AV out INPUT 4 S-VIDEO, AV in PC

Auto Preset 99 ch, Auto Label, Auto Sort

SCART (AV in/out, S-VIDEO in, AV Link) SCART (AV in/out, S-VIDEO in, RGB in), Component

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

3.5mm Ø jack English/German/French/Italian/Spanish/Dutch/Swedish/Portuguese/Greek/

Finnish/Russian/Turkish AC 220–240 V, 50/60 Hz 40 W (0.8W Standby) 109 W (0.9W Standby) (Method IEC60107)

4.4 kg

Display

Accessories Operation manual (

• As a part of policy of continuous impr ovement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specification figur es indicated are nominal values of production units. There may be some deviations from these values in individual units.

20.1 kg

✕ 2), Remote control unit, System cable, AC cord (✕ 2), R-6

(“AA” size, UM/SUM-3) Alkaline battery (

✕ 2)

LC-30HV2E

Operation Manual

Close the battery cover.

Inserting the batteries

If the remote control unit fails to operate LCD colour TV functions, replace the batteries in the remote control

Preparation

unit.

Insert batteries (two R-6 (“AA” size,

UM/SUM-3) Alkaline batteries,

supplied with product).

• Place batteries with their ter minals

Open the battery cover.

Press down the two

upper hooks to remove

the cover toward you.

corresponding to the ( + ) and ( – )

indications in the battery compartment.

chemical leakage in old batteries.

Improper use of batteries can result in chemical leakage or explosion. Be sur e to follow the instructions below.

• Do not use manganese batteries. When you replace the batteries, use alkaline ones.

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

find any chemical leakage, wipe thor oughly with a cloth.

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

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

• Remove batteries as soon as they have worn out. Chemicals that leak from batteries can cause a rash. If you

• The batteries supplied with this pr oduct may have a shor ter life expectancy due to storage conditions.

• If you will not be using the remote control unit for an extended period of time, r emove the batteries from it.

AC INPUT

110V–240V

AC cord

Using the remote control unit

(WHITE)

Connect the plug into

operation.

Cautions regarding remote control unit

• Do not expose the remote control unit to shock.

Use the remote control unit by pointing it towards the remote sensor window.

Objects between the remote control unit and sensor window may prevent proper

the terminal and secure

it by tightning the

thumb screws.

In addition, do not expose the r emote control unit to liquids, and do not place

in an area with high humidity.

The heat may cause deformation of the unit.

the Display is under direct sunlight or strong lighting. In such case, change

the angle of the lighting or Display, or operate the remote control unit closer to

• Do not install or place the remote control unit under direct sunlight.

System cable

the remote sensor window.

• The remote control unit may not work properly if the remote sensor window of

220–240V

AC INPUT

DISPLAY OUTPUT2

RS-232C DISPLAY OUTPUT1

AC cord

Setting the system

Preparation

Removing the terminal cover

AC INPUT

AC INPUT 110V–240V

DISPLAY OUTPUT-2 DISPLAY OUTPUT-1

Display (rear view)

110V–240V

DISPLAY INPUT2 DISPLAY INPUT1

(GRAY)

System cable

sides click.

until the hooks on both

Connect the plug firmly

(GRAY) (WHITE)

PR(CR)Y

PB(CB)

COMPONENT

INPUT 2 INPUT 1

INPUT 3

R - AUDIO - L

AV OUTPUT

S-VIDEO VIDEO

AVC System (rear view)

Connecting the system cable and the AC cord to the Display

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

CORD CONNECTED.

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

(How to open the door)

220–240V

AC INPUT

LC-30HV2E

AC INPUT terminal

Part names

CLEAR button*

Door knob

INPUT 4 terminal (VIDEO)

PC INPUT terminal (ANALOG RGB)

Front view

AVC System

INPUT 4 terminals (AUDIO)

INPUT 4 terminal (S-VIDEO)

PC INPUT terminal

(AUDIO)

POWER button

STANDBY/ON indicator

case, press CLEAR on the front of the unit as shown in the diagram. Press CLEAR lightly with the end of a

ballpoint pen or other pointed object.

This will reset the System as shown below.

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

• AV MODE resets to STANDARD.

• TV channel resets to channel 1.

• Dual screen resets to normal.

• Audio setting initialises.

• SRS resets to OFF.

• Image position is initialised.

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

RS-232C terminal

))

)

INPUT 3 terminals

(Y, P

Rear view

know your password. See Page 70 for initialising factory preset values when you have forgotten your passwor d.

• Pressing CLEAR will not delete channel preset or password. See Page 56 for initialising factory preset settings when you

DISPLAY OUTPUT1 terminal

INPUT 3 terminal (SCART)

ANTENNA INPUT terminal

P )

COMPONENT

RS-232C DISPLAY OUTPUT1

INPUT 3

R - AUDIO - L

S-VIDEO VIDEO

DISPLAY OUTPUT2

INPUT 2 INPUT 1

AV OUTPUT

DISPLAY OUTPUT2 terminal

INPUT 1 terminal

(SCART)

AV OUTPUT terminals

(AUDIO)

AV OUTPUT terminal

(S-VIDEO)

INPUT 2 terminal

(SCART)

AV OUTPUT terminal

(VIDEO)

Display

Part names

MAIN POWER

button

INPUT

STANDBY/ON button

(CH / )

( – / + )

CHANNEL buttons

VOLUME buttons

*OPC: Optical Picture Control

Remote control sensor indicator

OPC indicator*

STANDBY/ON indicator

OPC sensor

Remote control sensor

LC-30HV2E

Description

Save power by decr easing pictur e

brightness.

System automatically shuts down if

you set the time. Select mode 1 or

Power

Power Save

[Off]

Power Save [Standard]

Power Management

RETURN

Power Control

Page 37

PC Input mode menu items

Basic adjustment settings

List of PC menu items to help you with operations

mode 2.

Management

Description

Picture

Page 30

Adjusts the pictur e between light and

shade.

Adjusts pictur e brightness.

Adjusts r ed colour intensity .

Adjusts gr een colour intensity .

Contrast

Bright

Red

Green

+40

+30

–30

[+30]

[0]

USER

Contrast

Bright

Red

Green

Adjusts blue colour intensity .

Blue

+30

–30

[0]

Blue

All image adjustment settings r etur n

to the factor y preset values.

Reset

RETURN

First MENU

Power Control

Description

Audio

Page 34

Picture

Audio

Option

Adjusts the tr eble weaker or

stronger .

Adjusts the bass weaker or str onger .

Adjusts audio output between left

and right speakers.

Treble

Bass

Balance

+15

Right

–15–15Left [0]

[0]

USER

Treble

Bass

Balance

Reset

RETURN

All audio adjustment settings r etur n

to the factor y preset values.

Reset

Description

Provides a clear input image.

Auto Sync.

Fine Sync.

Auto Sync.

Option

Page 48, 55

Adjusts image “H-Pos.”, “V-Pos.”,

“Clock”, “Phase”.

Select the type of audio output. You can adjust

volume for the main speaker or audio output.

Audio Out

Fine Sync.

[Fixed]

Audio Out

RETURN

Description

Save power by decreasing picture

brightness.

System automatically shuts down if

no video signal inputs for 15 minutes.

Power Save

No Signal off

[Disable]

Power Save [Standard]

No Signal off [Disable]

No Operation off

Power control

Page 35–36

AV Input mode menu items

Basic adjustment settings

List of AV menu items to help you with operations

RETURN

Description

System automatically shuts down if

you do not operate the System for 3

hours.

Adjusts the picture between light and

shade.

Adjusts picture brightness.

Adjusts colour intensity.

Adjusts skin colour to a more natural

Contrast

Bright

Colour

+40

+30

–30

[+30]

[0]

DYNAMIC

Contrast

Bright

Tint

+30

–30

[0]

Colour

No Operation off

Picture

Page 30–33

tone for all colour system.

Adjusts picture sharpness.

Adjusts “Colour Temp”, “Film Mode”,

“Black”, “Monochrome”, “I/P Setting”,

“Cool Climate” and “Vivid Colour”.

All image adjustment settings return

to the factory preset values.

Sharp

Advanced

Reset

+30

–30

–7

[0]

Tint

Sharp

Advanced

Reset

RETURN

Page 34

Power control

First MENU

Description

Adjusts the treble weaker or stronger.

Adjusts the bass weaker or stronger.

Adjusts audio output between left

and right speakers.

Treble

Bass

Balance

+15

Right

–15

Left

[0]

DYNAMIC

Treble

Bass

Audio

Setup

Balance

Option

Audio

Picture

All audio adjustment settings return

to the factory preset values.

Reset

RETURN

Description

Runs auto installation again the same

as when the System powers on for

the first time after purchase.

Sets the channel preset.

Sets a password to restrict

Auto Installation

Programme

Setup

Child Lock

Auto Installation

Programme Setup

Child Lock

Setup

Page 21–28, 56

RETURN

Description

operations.

Select the kind of input signal of each input

source.

When wide screen signal bits are present in the

TELETEXT data, you can view information in

wide screen mode.

Input Select

WSS

[On]

[Panorama]

4:3 Mode

Position

Full Mode [Mode1]

Input Select

WSS

Option

Page 29, 46, 49, 50, 53–55

When you receive a 4:3 or 14:9 mode signal,

select “Normal” or “Panorama” display.

Select Full mode display setting.

Adjusts the horizontal/vertical position of the

image displayed.

Select the type of audio output. You can adjust

volume for the main speaker or audio output.

Select the colour system of an image current

input.

Select the on screen display language.

4:3 Mode

Full Mode

Position

Audio Out

Colour System

Language

[Fixed]

[AUTO]

[English]

Audio Out

Colour System

Language

RETURN

LC-30HV2E

CONTROL

CONTENTS

TOGGLE

NORMAL

FULL 14:9

ZOOM 14:9

PANORAMA

FULL

CINEMA 16:9

CINEMA 14:9

NORMAL

FULL

DOT BY DOT

DOT BY DOT (W)

TOGGLE

D I

OFF

_______

SSSSS

RRRRR

SSSSS

SRS

___________________

_________

0123456789110123401

EEEEEEEEEEEESSSSS

DDDDDDDDDDD IIIIIIIIIII

WWWWWWWWWWW

CONTROL ITEM COMMAND PARAMETER

WIDE MODE

CONTROL

CONTENTS

SRS

FOCUS

SRS + FOCUS

DUAL SCREEN OFF

DUAL SCREEN ON

DIRECT CHANNEL (1 – 99)

CHANNEL UP

NNH I

CUD

CHH

DCC

DUAL SCREEN

CHANNEL

CHANNEL DOWN

TEXT OFF

TEXT ON

___

XXP

TEXT

DIRECT PAGE JUMP (100 – 899)

Appendix

Response code format

Normal response

Return code (0DH)

Problem response (communication error or incorrect command)

Return code (0DH)

ERR

CONTROL ITEM COMMAND PARAMETER

Commands

POWER OFF (STANDBY)

INPUT SWICHING (TOGGLE)

TV (CHANNEL FIXED)

TV (CHANNEL SELCTION) (1 – 99)

INPUT1 – 4 (1 – 4)PCINPUT1 (AV)

INPUT1 (RGB)

INPUT2 (AV)

INPUT2 (Y/C)

___

_*_

0x0

DDDDD

VVVCPPPPPPP

TTT

IIIIIIIIIIIII

POWER SETTING

INPUT SELECTION A

_____________________

_______________

_____________

0101012301234

1122333

NNNNNNN

INPUT SELECTION B

INPUT3 (AV)

INPUT3 (Y/C)

INPUT3 (RGB)

INPUT3 (COMPONENT)

TOGGLE

STANDARD

DYNAMIC

MOVIE

GAME

USER

VOLUME (0 – 60)

H-POSITION (AV) ( 15 – 15)

H-POSITION (PC) ( 90 – 90)

V-POSITION (AV) ( 30 – 30)

*****

*******

DDDDD

MMMMM VVVVV

AAAAA

AV MODE

SELECTION

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

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

SSS

M L

OOO

M VOPPP

VOLUME

POSITION

Return codeCommand 4-digits Parameter 4-digits

V-POSITION (PC) ( 60 – 60)

CLOCK ( 90 – 90)

SKE

VCP

PHASE ( 20 – 20)

• 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.

RS-232C port specifications

Appendix

1 bit

8 bits

None

9,600 bps

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

and settings can be made, enabling automatic programmed playing.

connections.

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

Computer Control of the System

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

•

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

Baud rate:

Communication conditions

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

The display's communications settings are as follows:

None

Flow control:

Stop bit:

Parity bit:

Data length:

Communication procedure

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

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

C1 C2 C3 C4 P1 P2 P3 P4

Eight ASCII codes + CR

Command format

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

sending the next command.

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.)

0009

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

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

100

– 30

????

0055

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

LC-30HV2E

Appendix

SCART (INPUT 1)

1. Audio right output

(TV Monitor out)

2. Audio right input

3. Audio left output

(TV Monitor out)

4. Common earth for audio

5. Earth for blue

6. Audio left input

7. Blue input

8. Audio-video control

9. Earth for green

10. Not used

11. Green input

12. Not used

13. Earth for red

14. Not used

15. Red input

16. Red/Green/Blue control

17. Earth for video

18. Earth for Red/Green/Blue

control

19. Video output

(TV Monitor out)

20. Video input

21. Plug shield

SCART (INPUT 2)

1. Audio right output

2. Audio right input

3. Audio left output

4. Common earth for audio

5. Earth

6. Audio left input

7. Not used

8. Audio-video control

9. Earth

10. AV LINK control

11. Not used

12. Not used

13. Earth

14. Not used

15. Chroma S-Video input

16. Not used

17. Earth for video

18. Earth

19. TV Monitor output

20. Video input/S-video input

21. Plug shield

SCART (INPUT 3)

1. Audio right output

2. Audio right input

3. Audio left output

4. Common earth for audio

5. Earth

6. Audio left input

7. Blue input

8. Audio-video control

9. Earth

10. Not used

11. Green input

12. Not used

13. Earth

14. Not used

15. Red input/Chroma S-Video

input

16. Red/Green/Blue control

17. Earth for video

18. Earth

19. TV Monitor output

20. Video input/S-video input

21. Plug shield

13579111315171921

2468101214161820

Connecting pin assignments for SCART

Various audio and video devices may be connected via the SCART terminals.

LC-30HV2E

Dimensions

AVC

(Unit: mm)

LCD

LC-30HV2E

Unit: mm

545

766.4

1002.4

84.5

497 304.5101

598

354

304.5

DISPLAY OUTPUT-2 DISPLAY OUTPUT-1

AC INPUT 110V–240V

LC-30HV2E

REMOVING OF MAJOR PARTS

AVC System

1. Remove the six lock screws from the back of the top cabinet. Slide the top cabinet backward and detach it.

2. Remove the three lock screws from the front panel. Undo the three hooks at the top and the four hooks at the bottom, and detach the front panel.

3. Remove the two hexagonal shafts from the front shield. Undo the two hooks on both sides and detach the front shield.

4. Remove the three lock screws from the front unit and detach this unit.

5. Remove the one lock screw from the LED unit and detach this unit.

6. Remove the PC I/F unit and SR unit assemblies. 6-1. Remove the two hexagonal shafts each from the system cable (white) terminal and the RS-232C terminal,

both on the PC I/F unit. 6-2. Remove two lock screws from the system cable (gray) terminal also on the SR unit. 6-3. Remove the two lock screws from the PC I/F unit bracket. 6-4. Remove the four lock screws from the PC I/F unit and SR unit assemblies. Take out these assemblies. 6-5. Remove the three lock screws from the brackets of the PC I/F unit and SR unit assemblies. Detach the

shield. 6-6. Remove the six lock screws from the PC I/F unit. Detach this unit from the bracket. 6-7. Remove the two lock screws from the SR unit. Detach this unit from the bracket.

7. Remove the seven lock screws from the main unit and detach this unit.

Top Cabinet

6-4

PC I/F Unit

SR Unit

6-7

Front Unit

Power Unit

6-6

9-2

6-5

Main Unit

EMC Unit

6-3

8-2

AV Unit

6-1

9-1

6-2

8-1

LED Unit

Bottom Cabinet

8. Remove the AV unit. 8-1. Remove the six lock screws from the AV unit. 8-2. Remove the six lock screws from the AV unit and detach this unit.

9. Remove the EMC unit assemblies. 9-1. Remove the two lock screws from the EMC unit bracket. 9-2. Remove the two lock screws from the EMC unit and detach this unit.

10. Remove the three lock screws from the power unit and detach this unit.

LC-30HV2E

LCD Display

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 20 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 11 screws and disconnecting 1 lead wire from the fan.

Operation Cover Ass'y

P130

P308 P309

Center Angle

9. Take off the LED PWB by detaching one connector and removing 2 screws.

)

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

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

12.Take off the digital PWB by detaching one connector and removing 4 screws.

LC-30HV2E

P3503

SC4502

SC4551

SC4101

Digital PWB

SC4503

P202

Speaker(L) PWB

LEDPWB

13.Take off the main board by detaching 8 connectors and removing 4 screws.

14.Take off the SOUND PWB assembly by detaching 3 connectors and removing 4 screws.

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

Speaker(R PWB

P201

P305

P430

P7001

Reinforcement angle

Sound PWB

SC2401

Main Board

CN4

CN3

Reinforcement angle

LC-30HV2E

16.Detach each connector.

Inverter 1PWB

16 16

P601

P603

P605

P607

P609

P611

P305

Inverter GND PWB

P3503

P301

P302

P4302

PC007

CN8

CN5

Power Unit

CN9

P65

P6564

Inverter 2 PWB

P6551

P6553

P6555

P6558

P6560

P6562

17.Take off the inverter GND PWB by removing 3 screws.

20.Take off the power PWB by removing 6 screws. Remove insulation sheet.

21.Take off the inverter 1 PWB by removing 3 screws.

22.Take off the inverter 2 PWB by removing 3 screws

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

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

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

Inverter GND PWB

LC-30HV2E

Inverter 1 PWB

Inverter 2 PWB

Power Unit

Insulation Sheet

LC-30HV2E

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

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

28.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

ADJUSTMENT PROCEDURES

Procedure for turning ON the power

1. Connecting the system

» Using the system cable, connect the LCD Display Unit and the AVC System. » Connect the LCD Display Unit to the AC power source. » Connect the AVC System to the AC power source.

2. Procedure for turning ON the power

1 Press MAIN POWER on the Display.

•The STANDBY/ON indicator on the Display flashes red.

2 Press POWER on the AVC System.

•The System turns the power on.

•The STANDBY/ON indicator on the Display lights up green and the one on the AVC System lights up green.

•If the STANDBY/ON indicators still light up red, press B on the remote control unit or STANDBY/ON button on the Display to turn the System on.

When turning the AVC System on first 1 Press POWER on the AVC System.

•The STANDBY/ON indicator on the AVC System lights up red.

2 Press MAIN POWER on the Display.

•The System turns the power on.

•The STANDBY/ON indicator on the Display lights up green and the one on the AVC System lights up green.

•If the STANDBY/ON indicators still light up red, press B on the remote control unit or STANDBY/ON button on the Display to turn the System on.

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Display status indicator

Off

Flashing red

Red

Green

AVC System status indicator

Off

Red

Green

Procedure for upgrading the software (AVC System)

(1)With the power being OFF, open the top cabinet for the AVC System and then set the slide switch from the

NORMAL position to the WRITE position by inserting a needle-like insulator into the cutout located between the WHITE port on the rear of the shield case for the PC I/F unit and the RS-232C port.

(2)Connect the PC having the program installed, to the AVC System using the cross cable for the RS-232C port

(for the details of the program, see Appendix).

(3)Open the MS-DOS window on the PC and then go to the directory in which the software is installed. (4)Start up the system to which the AVC System and LCD Display Unit have been connected. (5)Run “vup.bat (tentaive name)” at the MS-DOS prompt. The software will be upgraded. (6)Load the file “civc_XXXXa.bhxmain.bhxosd.bhxt (tentaive name)”. It will take approximately a few minutes

until the file has been loaded. Never turn OFF the power or operate the system during this rewriting period.

(7)After the file has been loaded, turn OFF the LCD Display Unit and the AVC System and then return the slide

switch in the above step 1 from the WRITE position to the NORMAL position. Now the software has been upgraded.

Power off

AVC System does not turn on or its AC cord is disconnected.

The System is in standby mode.

The System turns the power on.

Power off

Only the AVC System is in standby mode or the System is in standby mode.

The System turns the power on.

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Procedure for adjusting each part of AVC System and LCD Display

» The adjustments were made to the best settings at factory. If any setting deviates or if any readjustment is

regarded as necessary when any part is replaced, perform the following steps.

» Any parameter that has been changed within the process adjustment is stored on the memory . If any readjustment

is required, write down the current value before changing it.

» Use a stable AC power source. » If the program is upgraded, it will take approximately 1 minute for the EEPROM to be initialized before any video

appears. Therefore, you will need to wait for this time period. Do not turn OFF the power or operate the system during the period.

» If the program is rewritten, write down the parameters that have been changed within the process adjustment

(see “5”.OSD menu and parameters displayed at manual adjustment), initialize the EEPROM, and then reenter the recorded values.

LCD display adjustment

See "Adjusting mode" for the steps to go into adjustment process mode.

1) +B adjustment (Digital PWB: R4648)

1. Receive PAL standard color bar.

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

2) Common bias adjustment

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.

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 and right 20% WHITE.

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 right side 20% WHITE window pattern is

set to the specified value.

Specification: x = 0.294 y = 0.293 (80% WHITE) = 0.266 y = 0.253 (20% WHITE) [Minolta CA-110 No. 42941022]

4) Initialization

1. Go to "Adjustment process mode".

2. Select "1" thru "3" of "CLR MODE" in "TEST".

Setting range: 0 Normal

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

3. Move the cursor down by one line.

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

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

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

5) Resetting lamp error counter

1. Go to "Adjustment process mode".

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

3. Reset the data to "0".

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

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

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Special Mode

1. Entering a special mode

1 Entering the process adjustment mode

[Steps]

(1)When using the remote control unit:

Using the system cable, properly connect the LCD Display Unit and the AVC System, and then turn ON the power. After the system has started up, press the PROCESS ADJ button located on the remote control unit.

(2)When using buttons on the main unit:

Using the system cable, properly connect the LCD Display Unit and the AVC System. Turn ON the power while holding down the INPUT and CH UP buttons located the LCD Display Unit.

[Description]

Various adjustments can be made manually.

2 Entering the inspection process mode

[Steps]

After the system has started up, press the PROCESS ADJ button located on the remote control unit. Set the parameter SIGNAL INFO to 1 on page 6 or 7 of the PROCESS ADJUSTMENT A MODE MENU. Subsequently, make the necessary adjustments in accordance with the above menu.

3 Procedure for setting up delivery

[Steps]

After the system has started up, press the DELIVERY SETUP button located on the remote control unit. (Within the adjustment process, the channel settings remain unchanged. Once you exit the process adjustment mode, the channel settings entered in the delivery adjustment mode become valid.)

[Description]

The user’s adjustment parameters and others will be set to the default values. The channel settings will also be initialized.

2. Exiting a special mode

(1)Process adjustment mode: Press the PROCESS ADJ button located on the remote control unit or turn OFF the

power.

(2)Inspection process mode: Set the parameter SIGNAL INFO to 0 on page 6 or 7 of the PROCESS ADJ A MODE

MENU or turn OFF the power.

(3)Delivery setup: After the delivery setup has been finished, the process adjustment mode is automatically

selected. To exit the process adjustment mode, press the PROCESS ADJ button located on the remote control unit or turn OFF the power.

3. OSD menu and parameters displayed at manual adjustment

* The default values may slightly differ depending upon the program version to be rewritten. * The settings are not initialized to the default values by merely rewriting the program. (See the paragraph for

Preparation for adjustment.)

(1)Descriptions of special buttons in process adjustment mode

Cursor UP key : Proceeds to the previous page. Cursor DOWN key: Returns to the next page. VOL UP key : Increases the adjusted value by 1. VOL DOWN key : Decreases the adjusted value by 1. Cursor LEFT key : Decreases the adjusted value by 10. Cursor RIGHT key : Increases the adjusted value by 10. CH UP key : Moves up the cursor. CH DOWN key : Moves down the cursor.

Maker Select

Ë +Badj3.3V Ë +Badj2.5V

KEY WRITE Ë DATA COPY INDUSTRY INIT CENTER Version OSD Version CVIC Version TTXP V ersion MONITOR Version PANEL Version FLASH Version MONITOR Model Model Select MONITOR STANDBY TYPE

SHARP 127 024 OFF OFF OFF MR MAIN E 2001/11/28K MR OSD 2001/09/10 A W2001/10/02 17:28 X2001/10/02 V2001/09/12 09:12 TTX PRG 068 F6 91 xx

-00

-05 01 1 0

Page Input Source HDCP

INPUT1 No SIG1/16 HDCP:ON EUROPE EUROPE

Destination for MAIN unit Destination for AV unitDistinguish Signal

Organization of process adjustment screen

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Parameter display

+B Adj3.3V

+B Adj2.5V

P AL Y CONTRAST

PAL COLOR GAIN

MAIN CR GAIN PAL

MAIN SUBBRIGHT 15K

MAIN CONTRAST 15K

SUB P AL Y

SUB PAL COLOR GAIN

PEAK ACL SW

SECAM Y CONTRAST

SECAM COLOR GAIN

MAIN CR GAIN SECAM

N358 Y CONTRAST

N358 COLOR GAIN

MAIN CR GAIN N358

N358 TINT

COMP 15K Y CONTRAST

COMP 15K COLOR GAIN

MAIN CR GAIN COMP15K

COMP HDTV SUB BRIGHT

COMP HDTV CONTRAST

DA TA COPY

The values for the above parameters should be written down before the EEPROM is replaced on the AVC system. Note: The contents on the adjustment process menu may be somewhat different depending on

the program's version-ip.

Setting range

0 ~ 255 0 ~ 255 0~ 63 0~ 63 0 ~ 255 0~ 63 0~ 15

-30 ~ 30 0~ 63

OFF/ON 0~ 63 0~ 63 0 ~ 255 0~ 63 0~ 63 0 ~ 255

-30 ~ 30 0~ 63 0~ 68 0 ~ 255 0~ 63 0~ 15

OFF/ON

Description

3.3 V adjustment

2.2 V adjustment P AL Y level adjustment PAL colour density adjustment PAL Cr level adjustment Pedestal level adjustment (15 k) PCB input amplitude adjustment (15 k) Sub P AL Y level adjustment Sub PAL colour density adjustment

SECAM Y level adjustment SECAM colour density level adjustment SECAM Cr level adjustment N358 Y level adjustment N358 colour density adjustment N358 Cr level adjustment N358 tone adjustment COMP 15 k Y level adjustment COMP 15 k colour density adjustment COMP 15 k Cr level adjustment COMP HDTV black level adjustment COMP HDTV Y level adjustment COMP HDTV colour density adjustment

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0.35V

4. Procedures before and after replacing the PC I/F unit

1) Before replacing the PC I/F unit, write down the values for the parameters listed on the 2nd and 3rd pages of the Adjustment Process A screen. If the values for the parameters cannot be written down because the PC I/F unit is completely broken or for any other reason, make all the adjustments in accordance with the paragraph for Adjustment procedure and parameters, rather than the following procedures. (End) Set the parameters listed on the 2nd and 3rd pages of the Adjustment Process A screen to the values you have written down.

5. Adjustment parameters

1) Analog adjustment

(1) Prior adjustment for AVC system chassis

Adjustment item Description Adjustment procedure

1 Destination check 1. Call the process adjustment mode.

2. Check that the destination is “Europe”.

2 AVC center 3.3V

adjustment

3 AVC center 2.5V

adjustment

Connect DC voltmeter to TP1702.

Connect DC voltmeter to TP1701.

Adjust output voltage of DC/DC 5 V line to

3.3 V . Adjusted value: 3.25~3.29 V

Adjust output voltage of DC/DC 2.5 V line to

2.6 V . Adjusted value: 2.60~2.64 V

(2) PAL signal adjustment

Adjustment item Description Adjustment procedure

1 Setup 1. Set colour system to “PAL”.

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

2 Tuner Y level

adjustment

3 PAL Y CONTRAST

adjustment

4 PAL COLOR GAIN

adjustment

1. Adjust TP1101 so that the Y signal without the chroma component should be 1.00 ±0.05 Vp-p (between the bottom of sync signal and the white peak).

1. Adjust TB1274_MAIN output (TP803) to

0.7 ±0.05 Vp-p.

1. Adjust TB1274_MAIN output (TP802) to

0.35 ±0.025 Vp-p.

5 MAIN CR GAIN PAL

adjustment

6 MAIN CONTRAST

adjustment

Press the DUAL screen button. 1. Select the special DUAL screen settings for

7 SUB PAL Y adjustment 1. Adjust TB1274_SUB output (TP806) to

8 SUB PAL COLOR

GAIN adjustment

1. Adjust TB1274_MAIN output (TP801) to 0.35 ±0.05 Vp-p.

1. Turn off the PEAK ACL control. Adjust the output (TP815) of IC810 to have 1.1 ±0.05 Vp-p from the pedestal level.

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

0.9 ±0.05 Vp-p.

1. Adjust TB1274_SUB output (TP805) to

0.9 ±0.05 Vp-p.

(3) SECAM signal adjustment

Adjustment item Description Adjustment procedure

1 Setup 1. Set colour system to SECAM.

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

2 SECAM Y CONTRAST

adjustment

3 SECAM COLOR GAIN

adjustment

1. Adjust TB1274_MAIN output (TP803) to

0.7 ±0.05 Vp-p.

1. Adjust TB1274_MAIN output (TP802) to 0.35 ±0.025 Vp-p.

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0.35V

4 MAIN CR GAIN

SECAM adjustment

1. Adjust TB1274_MAIN output (TP801) to 0.35 ±0.025 Vp-p.

(4) N358 signal adjustment

Adjustment item Description Adjustment procedure

1 Setup 1. Set colour system to N358.

2. Select N358 source. 100% SMPTE colour bar or similar colour bar signal including 100% white.

2 N358 Y CONTRAST

adjustment

3 N358 COLOR GAIN

adjustment

4 MAIN CR GAIN N358

adjustment

1. Adjust TB1274_MAIN output (TP803) to

0.7 ±0.05 Vp-p.

1. Adjust TB1274_MAIN output (TP802) to 0.35 ±0.025 Vp-p.

1. Adjust TB1274_MAIN output (TP801) to 0.35 ±0.025 Vp-p.

0.35V

5 N358 TINT adjustment 1. Adjust TB1274_MAIN output (TP802) so that

waveform becomes as illustrated below:

Smoothed

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0.35V

(5) Component 15k Hz signal adjustment

Adjustment item Description Adjustment procedure

1 Setup 1. Select component 15k Hz.

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

2 COMP 15k

CONTRAST adjustment

3 COMP 15k COLOR

GAIN adjustment

Adjust TB1274_MAIN output (TP803) to 0.7 ±0.05 Vp-p.

Adjust TB1274_MAIN output (TP802) to 0.35 ±0.025 Vp-p.

4 MAIN CR GAIN COMP

15k adjustment

Adjust TB1274_MAIN output (TP801) to 0.35 ±0.025 Vp-p.

(6) Component HDTV signal adjustment

Adjustment item Description Adjustment procedure

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

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

2 COMP HDTV

CONTRAST adjustment

Turn off the PEAK ACL control. Adjust the output (TP815) of pin (11) of IC810 to have

1.1 ±0.05 Vp-p from the pedestal level.

2. Factory settings (1) Data Copy

Adjustment item Description Adjustment procedure

1 DATA COPY 1. Using the adjustment key, set “ON” in the DATA

COPY line. Wait until “OFF” is displayed instead. Finally turn off the power to quit the process adjustment mode.

(2) Delivery setup

Adjustment item Description Adjustment procedure

1 DELIVERY SETUP Press the Delivery Setup button located on the remote

control unit, or position the cursor on the INDUSTRY INIT line, set the line to ON with the ADJ key, and then press the ENTER key. The adjustment is finished when the line turns OFF,

* Finally press the process adjustment key on the remote control unit to exit from the process adjustment mode. 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 AVC system.)

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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 ) 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 ) 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

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b) Adjustment on the TEST items

1234567891011121314 1TEST 2OL ERR RE 0 3LCDDATA0000 4WAIT 5CLRMODE 0 6WAIT 7 CNFG EEP 000 0 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 key (or rightward cursor key). 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 key 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 key operation and, after this,

every single step of UP/DOWN is carried out sequentially at 135ms interval.

ADJUSTMENT MODE MENU LIST

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 ———

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* Values in the parentheses are with PC.

LC-30HV2E

DESCRIPTION OF MAJOR IC FUNCTIONS

Æ Description of Main ICs

»»

» IC1301 (CXA2069Q)

»»

This IC is a 7-input, 3-output selector. The video signals other than those for the PC, components and RGB input, which have been input from each input connector and the tuner, and all the audio signals are sent to the IC1301 and then selected. Output 1 is used internally and output 3 in the monitor output. When the S video input is output to the monitor, Y and C signals are mixed in this IC. The video signals sent to the IC1301 are then input to the YC separation circuits, IC405 (main) and IC402 (sub). The audio signals are input to the PC I/F Unit via IC2501 (sound processor).

»»

» IC1401 (MM1519XQ)

»»

This IC is a 4-input, 8-output video selector for component input. The AV3 component input, AV1, RGB input, and Teletext RGB signals are input to the IC1401. The output signals go to the main, sub, and component channels.

»»

» IC1601 (SDA5550M).

»»

This IC is a microprocessor for Teletext. Video signals are input to the IC1601, which then decodes the Teletex data and outputs it as RGB data.

»»

» IC2501 (IX3371CE)

»»

This IC is used to decode audio signals. It serves as both the S IF decoder and the selector for the input audio data.

»»

» IC801/IC802 (TB1274AF)

»»

This IC synchronizes video and chroma signals for PAL/NTSC/SECAM colour televisions. Its video circuit includes a high-performance image quality compensation circuit and its chroma circuit a PAL/ NTSC/SECAM automatic selection circuit. The P AL-M/N clock signals at 4.43 and 8.58 MHz are internally generated for colour demodulation. The PAL/SECAM demodulation circuit uses a base band signal processing system with built-in IH DL and is therefore adjustment-free. The IC801/IC802 has 4 lines for YC signal input, 2 lines for RGB signal input, and 2 lines for colour difference signal input. It receives colour different signals for the main and sub channels from IC405 (main), IC402 (sub), and IC1401 in the former stage, and provides 1 line for colour difference signal output.

»»

» IC803 (CXA2101Q)

»»

This IC consists of a base band signal processing section for colour different input, an RGB signal processing section, and a 4-line video switch (including HV synchronizing signal processing). Input selection is performed by INPUT-SEL (I2C BUS). YCbCr , HD YPbPr , GBR and their respective HV synchronizing signals are input to each line. As the multi-scanning compliance range, a horizontal scanning frequency of 15~60 kHz can be input.

»»

» IC1901 (IX3566CE)

»»

This IC is FPGA for the synchronizing system. It creates sand castle pulses for IC803 and generates horizontal blanking signals.

»»

» IC604 (TA1318AF)

»»

This IC synchronizes TV component signals. The IC804 incorporates the necessary functions for measuring the frequency of input signals and synchronous replay into a single chip, and is applicable for horizontal synchronous replay (15.75, 31.5, 33.75, and 45 kHz) and vertical synchronous replay (525I, 525P, 625I, 750P, 1125I, 1125P, PAL 100 Hz, and NTSC 120 Hz).

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