Sharp LC-30HV4E Schematic

LC-30HV4E

SERVICE MANUAL

S32X6LC30HV4E

LCD COLOUR TELEVISION

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.

LC-30HV4E

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 ...........27

» ADJUSTMENT PROCEDURES (Display) .........29

» MAJOR IC INFORMATIONS..............................33

» TROUBLE SHOOTING TABLE ..........................53

» 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

» WAVEFORMS .................................................... 87

» SCHEMATIC DIAGRAM..................................... 88

» PRINTED WIRING BOARD ASSEMBLIES...... 161

» PARTS LIST .....................................................205

» PACKING OF THE SET ...................................247

Page

SHARP CORPORATION

LC-30HV4E

2 2

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

» Connect the resistor connection to all exposed metal

parts having a return to the chassis (antenna, metal

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

2. Disconnect AC power before servicing.

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

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)

connection reversed. (If necessar y, 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.

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 220~240 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 having with 5000 ohm per volt,

TO EXPOSED METAL PARTS

or higher, sensitivity or measure the A C voltage drop across the resistor.

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

DVM

AC SCALE

50k ohm

10W

0.15 µF

TEST PROBE

CONNECT TO KNOWN EARTH GROUND

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 , w attage , etc. Replacement parts which have these special safety characteristics are identified in this manual; electrical

and shaded areas in the

Schematic Diagrams.

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

components having such features are identified by “ å”

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

Replacement Parts List

and

LC-30HV4E

Precautions for using lead-free solder

1 Employing lead-free solder

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

L Fa

Indicates lead-free solder of tin, silver and copper.

2 Using lead-free wire solder

When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause damage or accident due to cracks. As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40°C, we recommend you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or ser vice branch in your area.

3 Soldering

As the melting point of lead-free solder (Sn-Ag-Cu) is about 220°C which is higher than the conventional lead solder by 40°C, and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded, remov e the bit from the PWB as soon as you confirm the steady soldering condition. Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to turn on and off the power of the bit as required. If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it. When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.

Be careful when replacing parts with polarity indication on the PWB silk.

Lead-free wire solder for servicing

Part No, ★ Description Code ZHNDAi123250E J φ0.3mm 250g(1roll) BL ZHNDAi126500E J φ0.6mm 500g(1roll) BK ZHNDAi12801KE J φ1.0mm 1kg(1roll) BM

LC-30HV4E

SPECIFICATIONS

Item 30" LCD COLOUR TV, Model:LC-30HV4E

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

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 TV-Tuning System STEREO/BILINGAL NICAM/IGR

Brightness 430 cd/m Backlight 60,000 hours (at Save1) Viewing angles H : 170° V : 170° Audio amplifier 10W × 2 Speakers Ø 8 cm 2pcs Terminals SCART (AV in, RGB in, TV out)

OSD language

AVC System

Rear INPUT 1

INPUT 2 INPUT 3 ANTENNA 75 Ω Din Type

AV OUTPUT Audio (Variable, Fixed), S-VIDEO out, AV out DC OUTPUT DC6.5V 7W MAX

Front

INPUT 4 S-VIDEO, AV in PC

Headphones

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 (Ø 3.5mm jack)

Ø 3.5mm jack

English/German/French/Italian/Spanish/Dutch/Swedish/Portuguese/Greek/

Finnish/Russian/Turkish

Power Requirement

Power Consumption

Weight

Accessories

AVC System Display AVC System

Display

AC 220–240 V, 50/60 Hz

32 W (0.7 W Standby)

109 W (0.9 W Standby) (Method IEC60107)

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

15.7 kg (w/o stand), 19.5 kg (with stand)

Operation manual, Remote control unit (× 1), System cable ( × 1), AC cord

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

(× 1)

Specifications are subject to change without prior notice.

OPERATION MANUAL

Part names

OPC indicator*

STANDBY/ON indicator

MAIN POWER

button

OPC sensor

Remote control sensor

indicator

Display

STANDBY/ON button

(

)

INPUT

button

VOLUME buttons

(

)

CHANNEL buttons

(CH

)

Remote control sensor

*OPC: Optical Picture Control

INPUT 1 terminal

(SCART)

INPUT 3 terminals (Y, P

)

))

INPUT 2 terminal (SCART)

AV OUTPUT terminal

(S-VIDEO)

DISPLAY OUTPUT1 terminal

AC INPUT terminal

CLEAR*

POWER button

RS-232C terminal

INPUT 4 terminal (S-VIDEO)

PC INPUT terminal (AUDIO)

INPUT 4 terminals (AUDIO)

INPUT 3 terminal (SCART)

AV OUTPUT terminal

(VIDEO)

AV OUTPUT terminals

(AUDIO)

PC INPUT terminal

(ANALOG RGB)

* If the AVC System is switched on but it does not appear to be operating corr ectly, 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 60 for clearing the password when you know it.

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

ANTENNA INPUT terminal

AVC System

STANDBY/ON indicator

DISPLAY OUTPUT2

terminal

INPUT 4 terminal (VIDEO)

(How to open the door)

Front view

Rear view

Headphone

DC OUTPUT terminal

(Terminal for expanded

functionality in the near

future.)

(When connecting headphones,

the sound from the speakers is

muted.)

LC-30HV4E

PreparationPart names

1 (STANDBY/ON)

To switch the power on and off.

(FREEZE/HOLD for TELETEXT)

TV/External input mode: Change the still image mode.

TELETEXT mode: Freeze a multi-page on screen while other

pages are automatically updated. Press

again to return to the

normal image.

(DUAL screen)

Set the dual picture mode. Press

again to return to normal view.

(WIDE MODE/ T/B/F)

TV/External input mode: Change the wide image mode.

TELETEXT mode: Set the area of magnification. (full/upper half/

lower half)

5 AV MODE

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

GAME, USER), PC MODE (STANDARD, USER)

6 SOUND

Select the sound multiplex mode.

(SRS and FOCUS)*

Select SRS and FOCUS sound system.

(Flashback)

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

Press to return to the previous page in TELETEXT mode.

(VOLUME)

Set the volume.

(Reveal hidden for TELETEXT)

TELETEXT mode: Display hidden characters.

(SUBPAGE for TELETEXT)

TELETEXT mode: Change the picture mode for sub-page selecting.

12 MENU

Display the MENU screen.

(CHANNEL INFORMATION)

Display the channel information and time.

(INPUT SOURCE)

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

PC)

15 SLEEP

Set the Sleep timer.

(MUTE)

Mute the sound.

17 0 – 9

TV/External input mode: Set the channel.

TELETEXT mode: Set the page.

(Digit for channel select)

Change the digits of the selected TV channel.

19 Colour (RED/GREEN/YELLOW/BLUE)

TELETEXT mode: Select a page.

20 CH

/CH

(

)

TV/External input mode: Select the channel.

TELETEXT mode: Set the page.

(TOP Overview for TELETEXT)

TELETEXT mode: Display an index page for CEEFAX/FLOF

information. TOP Overview for TOP programme.

(TELETEXT)

Select the TELETEXT mode. (all TV image, all TEXT image, TV/TEXT

image)

23 RETURN

MENU mode: Return to the previous menu screen.

24 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.

NOTE

• When using the r emote contr ol unit, point it

at the Display.

is a trademark of SRS Labs, Inc.

FOCUS technology is incorporated under

license from SRS Labs, Inc.

Remote control unit

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.

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.

Preparation

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.

Setting the Display on the wall

Setting the AVC System with the stand

CAUTION

• Installing the LCD Colour TV requires special skill that should only be performed by qualified service personnel.

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

mounting that results in accident or injury.

Using an optional bracket to mount the Display

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

to the wall.

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

Vertical mounting Angular mounting

Hanging on the wall

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

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

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

Stick each spacer to the

stand as shown.

Peel each spacer

away from the

paper and attach

to the four bulging

areas on the stand.

Attach each cushion to

the stand as shown.

Fit the stand to the AVC

System.

Peel each cushion

away from the

paper and attach

to the four areas at

the bottom.

Insert the stand into the AVC

System, making sure that the

thick and thin bulges of the

stand align with the big and

small holes on the AVC

System.

Stand

spacer

Bulge

Stand cushion

Thin bulge

Thick

bulge

Big hole

Small

hole

Attach the stand using the

stand screws as shown.

Stand screw

The AVC System installed

vertically with the stand.

NOTE

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

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

Attaching point

Bulge

LC-30HV4E

Using external equipment

Display

(rear view)

DVD player

AVC System

(rear view)

AVC System

(front view)

AV Receiver

(Built-in Tuner Amp)

VCR Decoder

Game console/CamcorderPC

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

console and camcorder. To view external source images, select the input source from 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 decoder, VCR, DVD player, PC, game

console, camcorder or other external equipment.

• The S-video signal only outputs when “INPUT2” or “INPUT3” is selected for “Y/C”, or when from the INPUT 4 terminal (S-

VIDEO). Only the S-video signal can output from the INPUT 4 terminal (S-VIDEO).

NOTE

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

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-30HV4E

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/video) 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 PC.

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

Appendix

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 e CR

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

????

Commands

POWER OFF (STANDBY)

INPUT SWITCHING (TOGGLE)

TV (CHANNEL FIXED)

TV (CHANNEL SELCTION) (1

– 99)

INPUT1 – 4 (1 – 4)

INPUT1 (CVBS)

INPUT1 (RGB)

INPUT2 (CVBS)

INPUT2 (Y/C)

INPUT3 (CVBS)

INPUT3 (Y/C)

INPUT3 (RGB)

INPUT3 (COMPONENT)

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

TEXT OFF

TEXT ON (TOGGLE)

DIRECT PAGE JUMP (100

– 899)

WIDE MODE

SRS

DUAL SCREEN

CHANNEL

TEXT

CONTROL ITEM COMMAND PARAMETER

CONTROL

CONTENTS

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

LC-30HV4E

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

1 3 5 7 9 111315171921

2 4 6 8 101214161820

Connecting pin assignments for SCART

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

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

WSS

4:3 Mode

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

DIMENSIONS

LC-30HV4E

AVC System

183

365 430

Unit: mm

250

180

LC-30HV4E

Display

545

117.5 117.5

643

766

385

Unit: mm

84.5

305608

84.5

497

545

1002

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-30HV4E

Side Cover (L)

Top Cabinet

Side Cover (R)

Main PWB angle

Main PWB

Front panel

Bottom panel

LC-30HV4E

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 four 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 shield retaining screws and remove the angle. 8-4. Remove the two SR unit retaining screws and remove the SR unit.

9. Remove the 8 rear cabinet retaining screws and remove the rear chassis.

: XBPSN30P06000, 9 : XEBSF30P08000)

(

10. Remove the three power supply board retaining screws and remove the power supply board.

8-1

8-2

PC I/F unit shield

Rear chassis

PC I/F unit

SR unit

8-4

8-3

PC I/F unit angle

7-1

7-2

7-3

9-2

Power unit

9-1

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

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

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

remove the front shield.

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

11-1

AV unit

AV unit angle

11-2

LC-30HV4E

Cooling Fan

13-2

12-1

13-1

Front Shield

Front unit

LC-30HV4E

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-30HV4E

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-30HV4E

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-30HV4E

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.

LCD Panel

Diffusion Sheet

Prism Sheet

D-BEF Sheet

Lamp

Panel Shield

Diffusion Panel

ITO Sheet

LC-30HV4E

ADJUSTMENT PROCEDURES (AVC SYSTEM)

Preparation for adjustment

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

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

3. Use a stabilized AC power supply.

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

How to enter the in-process adjustment mode

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

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

(the normal activation screen opens), retry.

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

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

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

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

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

1. Button operation in the in-process adjustment mode

Cursor Up Move to the next page Cursor Down Back to the previous page Volume (+) Increase the setting by 1 Volume (-) Decrease the setting by 1 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-30HV4E

CENTER Version OSD Version CVIC Version TTXP V ersion

∫ ∫ ∫ ∫ ∫ ∫ ∫ ∫

2001 06 21A XXXXXXXX XXXXXXXX XXXXXXXX

∫ ∫ ∫ ∫

Page Program version Colour system

TUNER NO SIG1/13 HDCP:ON EUROPE EUROPE

Main unit AV unitHDCPSource of input

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 13/13) 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 1/13) for man ual adjustment and turn the "Volume" key ON; then press "ENTER".

LC-30HV4E

ËË

Ë Adjustment parameters

ËË

1) Analog adjustment

(1) AVC System voltage adjustment

Adjustment items Adjustment conditions Adjustment procedures

1 In-process adjustment

mode (

Check the destination.

)

Enter the in-process adjustments mode. Check that the destination is EUROPE.

2 AVC System 3.3V

adjustment

3 AVC System 1.8V

adjustment

Connect a DC voltmeter to TP4 at the opening on the top of the PC I/F unit.

Move the cursor to the [Ë+Badj3.3V] line and adjust the TP4 voltage to 3.30±0.01V.

Move the cursor to the [Ë+BAdj1.8V] line and press "ENTER" key. Adjustment is complete if [Ë+BAdj1.8V complete] appears. If "ERR" occurs, adjust pin (6) at CN9 on the PC I/F unit so that 1.9V is reached.

(2) TUNER adjustment

Adjustment items Adjustment conditions Adjustment procedures

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 level adjustment Adjust TP1101 so that the Y signal without the chroma

Connect the oscilloscope to TP1101.

component should be 1.00 ±0.02 Vp-p

1.0Vp-p

(between the bottom of sync signal and the white peak).

(3) PAL signal adjustment

Adjustment items Adjustment conditions Adjustment procedures

1 MAIN PAL Y LEVEL

adjustment

LC-30HV4E

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

2 MAIN PAL COLOR

GAIN adjustment

3 MAIN PAL Cr LEVEL

adjustment

4 MAIN CONTRAST

adjustment

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

5 SUB PAL Y adjustment Adjust TB1274_SUB output (TP806) to

6 SUB PAL COLOR

GAIN adjustment

Adjust pin (3) of P801 to

0.53 ±0.025 Vp-p.

0.53V

Adjust pin (5) of P801 to

0.53 ±0.025 Vp-p.

0.53V

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).

1.5 ±0.05 Vp-p.

Adjust TB1274_SUB output (TP805) to

1.13 ±0.05 Vp-p.

(4) SECAM signal adjustment

Adjustment items Adjustment conditions Adjustment procedures

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 MAIN SECAM Y

LEVEL adjustment

3 MAIN SECAM COLOR

GAIN adjustment

4 MAIN SECAM Cr

LEVEL adjustment

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

Adjust pin (3) of P801 to

0.53 ±0.025 Vp-p.

Adjust pin (5) of P801 to

0.53 ±0.025 Vp-p.

0.53V

LC-30HV4E

(5) N358 signal adjustment

Adjustment items Adjustment conditions Adjustment procedures

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 MAIN N358 Y

LEVEL adjustment

3 MAIN N358 COLOR

GAIN adjustment

4 MAIN N358 Cr LEVEL

adjustment

5 MAIN N358 TINT

adjustment

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

Adjust pin (3) of P801 to

0.53 ±0.025 Vp-p.

0.53V

Adjust pin (5) of P801 to

0.53 ±0.025 Vp-p.

0.53V

Adjust 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. Select component source.

100% SMPTE colour bar or similar colour bar signal including 100% white.

2 MAIN COMP 15k Y

CONTRAST adjustment

3 MAIN COMP 15k

COLOR GAIN adjustment

4 MAIN COMP 15k Cr

LEVEL adjustment

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

Adjust pin (3) of P801 to

0.70 ±0.025 Vp-p.

Adjust pin (5) of P801 to

0.70 ±0.025 Vp-p.

0.70V

(7) Component HDTV signal adjustment

Adjustment items Adjustment conditions Adjustment procedures

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

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

LC-30HV4E

2 MAIN COMP HDTV

CONTRAST adjustment

Adjust the TP815 to have 0.90 ±0.025 Vp-p from the pedestal level.

2. Factor y settings

Adjustment item Description 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 INIT", 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.

LC-30HV4E

Ë Ë

Ë Adjustment Mode Menu List (AVC System)

Ë Ë

Do not change items, the adjustment procedure of which is not described in this manual. Inadvertent changes of such items may result in unexpected or unrecoverable errors.

Page Item Page Item

Page 1

Page 3

Page 5

Page 7

Page 9

Page 11

Page 13

Maker Select

Ë+BAdj3.3V Ë+BAdj1.8V(Enter: Auto)

KEY WRITE ËDATA COPY INDUSTRY INIT CENTER V ersion OSD V ersion CVIC V ersion TTXP V ersion MONITOR V ersion STANDBY TYPE HOTEL MODE

ËSUB PAL Adjust ËSUB PAL Y ËSUB PAL COLOR GAIN ËTUNER DAC ADJ

ËN358 Adjust ËN358 Y CONTRAST ËN358 COLOR GAIN ËMAIN CR GAIN N358 ËN358 TINT ËREFERENCE Adjust

ËPAL White Balance

PAL R CUTOFF PAL R DRIVE PAL G CUTOFF PAL G DRIVE PAL B CUTOFF PAL B DRIVE

ËCOMP15K White Balance COMP15K R CUTOFF COMP15K R DRIVE COMP15K G CUTOFF COMP15K G DRIVE COMP15K B CUTOFF COMP15K B DRIVE

IPMODE INTERLACE MDSW INTERLACE PTGSW INTERLACE IPMODE PROGRESSIVE MDSW PROGRESSIVE PTGSW PROGRESSIVE IPMODE FMODEON MDSW FMODEON PTGSW FMODEON IPMODE SUB MDSW SUB PTGSW SUB IPMODE FMODEON PAL MDSW FMODEON PAL PTGSW FMODEON PAL

DEBUG PRINT SW PIC ADJ MAKER SELECT PIC ADJ KOUTEI SELECT EEPROM SAVE EEPROM RECOVER CENTER PROG UPDATE

Page 2

Page 4

Page 6

Page 8

Page 10

Page 12

ËMAIN PAL Adjust ËP AL Y CONTRAST ËPAL COLOR GAIN ËMAIN CR GAIN PAL ËMAIN CONTRAST 15K

Center Acutime

RESET

Monitor Acutime

RESET

ËSECAM Adjust ËSECAM Y CONTRAST ËSECAM COLOR GAIN ËMAIN CR GAIN SECAM

ËCOMP15K Adjust ËCOMP15K Y CONTRAST ËCOMP15K COLOR GAIN ËMAIN CR GAIN COMP15K ËCOMP HDTV Adjust ËCOMP HDTV CONTRAST ËCOMP HDTV SUB BRIGHT ËPEAK ACL SW

ËN358 White Balance

N358 R CUTOFF N358 R DRIVE N358 G CUTOFF N358 G DRIVE N358 B CUTOFF N358 B DRIVE

ËCOMP33K White Balance COMPHDTV R CUTOFF COMPHDTV R DRIVE COMPHDTV G CUTOFF COMPHDTV G DRIVE COMPHDTV B CUTOFF COMPHDTV B DRIVE

IPMODE PROGRESSIVE2 MDSW PROGRESSIVE2 PTGSW PROGRESSIVE2 IPMODE FMODEON2 MDSW FMODEON2 PTGSW FMODEON2 ILG LV MD LV VE LV IP MODE SEL

LC-30HV4E

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 re writing software is supplied in the f orm of an exe file named e.g., "MAIN_2002_10_10A.exe" (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 f or 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) Exercise great care to hide the procedure in entering the in-process adjustment mode from the customer. Press the MAIN POWER button while holding down the volume DOWN key and the INPUT key on the display unit simultaneously. 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 Channel Up key 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 13/13 is highlighted. (It checks that "CENTER PROG UPDATE" on page 13/13 is chosen.)

3) Use the VOLUME -/+ keys to change OFF to ON.

4) Press the ENTER key 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. 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 1/13 has been updated.

LC-30HV4E

Continued

LC-30HV4E

ADJUSTMENT PROCEDURES (DISPLAY)

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

adjustment.

1) +B adjustment (Digital PWB: R4648)

1. Receive PAL 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 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 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 = 0.275 y = 0.273 (80% WHITE) x= 0.269 y = 0.253 (20% WHITE) [Minolta CA-110] 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-30HV4E

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

+ 218 hidden pages

Sharp LC-30HV4E Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual