Sharp LCM3700 Schematic

LC-M3700

LC-M3710

LC-M3700

1st Edition

LC-M3710

SERVICE MANUAL

WIDE LCD MONIT OR

LC-M3700

MODELS

LC-M3710

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

CONTENTS

Page

» IMPORTANT SERVICE SAFETY PRECAUTION.........................................................................................2

» SPECIFICATIONS ........................................................................................................................................6

» OPERATION MANUAL .................................................................................................................................7

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

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

» ADJUSTING PROCEDURE OF EACH SECTION .....................................................................................17

» HOW TO UPGRADE THE INTERNAL PROGRAM....................................................................................30

» DESCRIPTION OF FUNCTION OF MAJOR ICs .......................................................................................34

» CHASSIS LAYOUT .....................................................................................................................................58

» BLOCK DIAGRAM......................................................................................................................................60

» OVERALL WIRING DIAGRAM ...................................................................................................................68

» DESCRIPTION OF SCHEMATIC DIAGRAM .............................................................................................72

» SCHEMATIC DIAGRAM .............................................................................................................................73

» PRINTED WIRING BOARD ASSEMBLIES..............................................................................................132

» REPLACEMENT PARTS LIST..................................................................................................................173

» PACKING OF THE SET ............................................................................................................................212

SHARP CORPORATION

This document has been published to be used for after sales service only. The contents are subject to change without notice.

LC-M3700

LC-M3710

IMPORTANT SERVICE SAFETY PRECA UTION

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

WARNING

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

2. Disconnect AC power before servicing.

» Use an AC voltmeter ha ving with 5000 ohm per v olt,

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

» Connect the resistor connection to all exposed metal

CAUTION: FOR CONTINUED PROTECTION AGAINST A RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE. F7501, F7502, F7503, F7504, F7551, F7552, F7553, F7611, F7612, F7613, F7614, F7641, F7642, F7643 (T315mAL, 250V), F2701, F2702 (T4AH, 250V)

parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor. All checks must be repeated with the AC cord plug connection reversed. (If necessar y, a nonpolarized adaptor plug must be used only for the purpose of completing these checks.) Any reading of 0.75 Vrms (this corresponds to 0.5

BEFORE RETURNING THE RECEIVER (Fire & Shock Hazard)

mA. rms 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 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

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

0.15 µF

TEST PROBE

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.

2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

SAFETY NOTICE

Many electrical and mechanical parts in WIDE LCD MONITOR 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-M3700

LC-M3710

PRECAUTIONS A PRENDRE LORS DE LA REPARATION

Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants.

AVERTISSEMENT

de 0,15µF en série avec toutes les pièces métalliques exposées du coffret et une terre connue comme une

1. N'entreprendre aucune modification de tout circuit. C'est dangereux.

2. Débrancher le récepteur avant toute réparation.

PRECAUTION: POUR LA PROTECTION CONTINUE CONTRE LES RISQUES D'INCENDIE, REMPLACER LE FUSIBLE F7501, F7502, F7503, F7504, F7551,

A V

F7552, F7553, F7611, F7612, F7613, F7614, F7641, F7642, F7643 (T315mAL, 250V), F2701, F2702 (T4AH, 250V)

conduite électrique ou une prise de terre branchée à la terre.

• Utiliser un voltmètre CA d'une sensibilité d'au moins 5000Ω/V pour mesurer la chute de tension en travers de la résistance.

• Toucher avec la sonde d'essai les pièces métalliques exposées qui présentent une voie de retour au châssis (antenne, coffret métallique, tête des vis, arbres de commande et des boutons, écusson, etc.) et mesurer la chute de tension CA en-travers de la résistance. Toutes les vérifications doivent être refaites après avoir inversé la fiche du cordon d'alimentation. (Si nécessaire, une prise d'adpatation non polarisée peut être utilisée dans le but de terminer ces vérifications.) Tous les courants mesurés ne doivent pas dépasser

VERIFICATIONS CONTRE L'INCEN-DIE ET LE CHOC ELECTRIQUE

Avant de rendre le récepteur à l'utilisateur, effectuer

0,5 mA. Dans le cas contraire, il y a une possibilité de choc électrique qui doit être supprimée avant de rendre le récepteur au client.

les vérifications suivantes.

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

2. Inspecter tous les dispositifs de protection comme les boutons de commande non-métalliques, les isolants, le dos du coffret, les couvercles ou blindages de réglage

DVM

ECHELLE CA

1.5k ohm 10W

et de compartiment, les réseaux de résistancecapacité, les isolateurs mécaniques, etc.

3. S'assurer qu'il n'y ait pas de danger d'électrocution en vérifiant la fuite de courant, de la facon suiv ante:

• Brancher le cordon d'alimentation directem-ent à une

0.15 µF

SONDE D'ESSAI

prise de courant de 110-240V. (Ne pas utiliser de transformateur d'isolation pour cet essai).

• A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ 10 watts en parallèle a v ec un condensateur

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

AUX PIECES METALLIQUES EXPOSEES

BRANCHER A UNE TERRE CONNUE

AVIS POUR LA SECURITE

De nombreuses pièces, électriques et mécaniques, dans les téléviseurs présentent des caractéristiques spéciales relatives à la sécurité, qui ne sont souvent pas évidentes à vue. Le degré de protection ne peut pas être nécessairement augmentée en utilisant des pièces de remplacement étalonnées pour haute tension, puissance, etc. Les pièces de remplacement qui présentent ces caractéristiques sont identifiées dans ce manuel; les pièces électriques qui présentent ces particularités sont

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

identifiées par la marque " å " et hachurées dans la liste des pièces de remplacement et les diagrammes schématiques. Pour assurer la protection, ces pièces doivent être identiques à celles utilisées dans le circuit d'or igine. L'utilisation de pièces qui n'ont pas les mêmes caractéristiques que les pièces recommandées par l'usine, indiquées dans ce manuel, peut provoquer des électrocutions, incendies, radiations X ou autres accidents.

LC-M3700

2 2

LC-M3710

IMPORTANT SERVICE SAFETY PRECA UTION

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

WARNING

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

2. Disconnect AC power before servicing.

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.

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 ha ving with 5000 ohm per v olt,

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

» Connect the resistor connection to all exposed metal

DVM

AC SCALE

50k ohm

10W

0.15 µF

TEST PROBE

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

SAFETY NOTICE

and shaded areas in the

Schematic Diagrams.

components having such features are identified by “ å”

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

Replacement Parts List

and

LC-M3700 LC-M3710

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 service 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. Mak e sure to turn on and off the power of the bit as required. If a different type of solder stays on the tip of the soldering bit, it is allo y ed with lead-free solder. Clean the bit after every use of it. When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.

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

Lead-free wire solder for servicing

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

LC-M3700 LC-M3710

SPECIFICATIONS

Product Model

Screen size

LCD Panel Drive

Number of dots Colour system Speaker Audio amplifier Terminals

Power requirement Power consumption Standby power consumption Dimensions Weight Operating temperature 0°C – +40°C Operating humidity 20% – +80%

Wide LCD Monitor LC-M3700/LC-M3710 37” (819.6 mm (width) x 460.8 mm (height), 940.3 mm (diagonal)) TFT (thin film transistor) Active Matrix 3,147,264 dots (768 (height) x 1,366 (width) x 3) NTSC (3.58/4.43MHz), PAL/PAL-60, SECAM

5 cm, 1 piece External speakers: 20 W (10 W + 10 W) Built-in monitor speaker: 0.8 W INPUT1 VIDEO in (BNC), S-video in, AUDIO (L/R) in INPUT2(INPUT/OUTPUT VIDEO OUTPUT VIDEO out (BNC) INPUT3 (Y/G, Cr/Pr/R, COMPONENT video in/PC (ANALOG) in (BNC), Cb/Pb/B, HD, VD) AUDIO in (stereo jack, ø 3.5mm) INPUT3/PC(ANALOG) OUTPUT PC(ANALOG)INPUT PC (ANALOG) INPUT in (Mini D-Sub 15 pin),

PC(DIGITAL)INPUT PC (DIGITAL) INPUT in (DVI-D) RS-232C INPUT terminal (9 pins), RS-232C OUTPUT terminal (9 pins), SPEAKER terminal (L/R), AC input terminal AC110 - 240V, 50/60Hz 182 W

1.2 W 949 mm x 99.5 mm x 572 mm 19 kg (without stand)

VIDEO in/out (RCA), AUDIO (L/R) in/out

INPUT3/PC (ANALOG) OUTPUT (Mini D-Sub 15 pin)

AUDIO in (stereo jack, ø 3.5 mm)

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

Part Names – Display

ENTER

RIGHT

LEFT

DOWN

INPUT

VOL

Liquid Crystal Display panel

Side control panel

(See below.)

Front view

Side control panel

Remote

control sensor

When using the

remote control, point

it towards here.

STANDBY/ON

button

STANDBY/ON

indicator

Panel side

ENTER

VOL +/–

LEFT

RIGHT

DOWN

INPUT

Menu operation

buttons

Cursor

control

LC-3700 LC-3710

About LC-M3710:

The SHARP logo for the LC-M3710 model is

on the vertical base.

Removing the terminal cover

1. Hold down the two claws at the top of the terminal

cover, and pull the cover toward you so it opens a

little.

2. Slowly lift the cover so the three claws at the bottom

come loose from the claw holes in the console.

Rear view

Built-in monitor

speaker

SPEAKER (R)

External speaker terminal

(right)

POWER

Main power on/off

switch

SPEAKER (L)

External speaker terminal

(left)

AC Input

terminal

INPUT2 (INPUT/

OUTPUT)

VIDEO OUTPUT

RS-232C INPUT

RS-232C OUTPUT

INPUT1

PC (DIGITAL) INPUT

INPUT3/PC (ANALOG)

OUTPUT

INPUT3

PC (ANALOG)

INPUT

Removing the terminal cover

Lower claw

Upper claw

OPERATION MANUAL

LC-M3700 LC-M3710

LC-M3700

Part Names – Remote Control Unit

INPUT

RETURN

STANDBY/ON

ENLARGE

WIDE

LCD MONITOR

ENTER

VOL

Signal transmitter

Remote control unit

STANDBY/ON

VOL +/–

ENLARGE

INPUT

RETURN

WIDE

Cursor control ('/"/\/|)

ENTER

INPUT1

INPUT1: Terminals are provided for two types of video input signal. Input Select

No matter which video signal is selected, the system uses the signal input to the audio terminals for

audio.

Related topic:

Input Select

*1 “Auto” (automatic colour system detection) is factory preset value. Color System

INPUT 1

AUDIO

VIDEOS-VIDEO

R - - L

S-video

INPUT1

audio

Video

Connecting Peripheral Equipment

Terminal type

BNC

S terminal

Compatible signals

NTSC (3.58/4.43), PAL, SECAM (*1)

Video

S-video

LC-M3710

Connecting Peripheral Equipment (Continued)

INPUT2

INPUT 2 (INPUT/OUTPUT)

VIDEO

AUDIOR - - L

INPUT2

audio

Video

Terminal type

RCA

Compatible signals

NTSC (3.58/4.43), PAL, SECAM (*2)Video

INPUT2: Input or output can be selected for INPUT2. (*1) INPUT2 Select

This setting cannot be switched when INPUT2 is currently being displayed.

When this is set to

“Output”, video signals input fr

om the INPUT1 video input terminal are output. (*3)

An audio signal is output with this setting (i.e. the audio signal corresponding to the video currently

being displayed). (*4)

Related topic:

*1 “Input” is factory preset value.

*2 “Auto” (automatic colour system detection) is factory preset value. Color System

*3 Outputs video from INPUT1, regardless of the currently displayed signal.

*4 If the “INPUT2 Select” is set to “Output”, audio output is as follows

Example 1

Input Selection : INPUT1

“Input Select” : AV

Example 2

Input Selection : INPUT3

“Input Select” : RGB

INPUT2 video output: Video from INPUT1

INPUT2 audio output: Audio from INPUT1

INPUT2 video output: Video from INPUT1

INPUT2 audio output: Audio from INPUT3

INPUT3

INPUT 3

AUDIOPr/Cr/RPb/Cb/B VDHDY/G

Input Select: RGB

INPUT3 audio

Input Select:

COMPONENT

Horizontal

sync signal (H sync)

Vertical

sync signal (V sync)

The signal is input with the Y/Pb/Pr (Y/Cb/Cr) terminals. The HD and VD terminals are

not used. Video adjustment options on the menu are the AV type.

Compatible input range: 480i/576i, 480p/576p, 1080i (50Hz (*4) /60Hz), 720p (60Hz). (*1)

The monitor operates using Video (RGB) and Sync (HD/VD) signals, just like a PC

(analog). Supported sync signals are ordinary separate sync (HD/VD) and Sync On

Green. (*2) (*3)

Video adjustment options on the menu are the PC type.

Compatible input range: Conforms to PC (analog). Appendix 1

COMPONENT

RGB

Ë INPUT3: Either COMPONENT or RGB can be selected for the input video signal. Input Select

Related topic:

Input Select

*1 Auto-detects video signal frequency.

*2 Automatic sync signal type detection

*3 Sync signal presence is detected in the order: Separate Sync Sync On Green. If for some reason

Separate Sync is not input, the system will operate assuming that the signal is a Sync On Green

signal (i.e. that the sync signal is contained in the G signal of RGB), and this may result in an

unstable image, depending on the video signal.

*4 1080i (50Hz) corresponds to a SMPTE274M signal. (Horizontal frequency is 28.125kHz)

LC-M3700 LC-M3710

LC-M3700

Terminal type

D-Sub15-pin

DVI-D

Compatible signals

VGA, SVGA, XGA, SXGA and others Appendix 1

In addition to ordinary Separate Sync (HD/VD) signals, the system is also

compatible with Composite Sync (Csync) and Sync On Green. (*1) (*2)

VGA, SVGA, XGA, SXGA and others Appendix 1

Analog

Digital

Connecting Peripheral Equipment (Continued)

PC: Terminals for two kinds of PC video input signal are available. Input Select

No matter which video signal is selected, the system uses the signal input to the audio terminals for

audio.

Related topic:

*1 Auto-detects Sync signal type.

*2 Sync signal presence is detected in the order: Separate Sync Composite Sync Sync On

Green. If for some reason neither Separate Sync nor Composite Sync is input, the system will

operate assuming that the signal is a Sync On Green signal (i.e. that the sync signal is contained in

the G signal of RGB), and this may result in an unstable image, depending on the video signal.

PC(DIGITAL)INPUT

PC (digital) video

PC(ANALOG)INPUT

AUDIO

PC (analog) video

PC audio

VIDEO OUTPUT

Ë When INPUT2 is displayed, video from INPUT2 is output. Otherwise video from INPUT1 is output.

INPUT3/PC (ANALOG) OUTPUT

Ë When INPUT3 is displayed, video from INPUT3 is output. Otherwise PC (analog) video is output.

RS-232C INPUT/RS-232C OUTPUT

Ë The RS-232C INPUT and RS-232C OUTPUT are used to control this monitor with a PC.

To connect a single monitor to a PC, connect to the RS-232C INPUT terminal.

To connect multiple monitors in a daisy chain for control by PC, use the RS-232C OUTPUT terminal.

RS-232C INPUT

RS-232C OUTPUT

INPUT 3 / PC (ANALOG) OUTPUT

VIDEO

OUTPUT

Video

LC-M3710

Appendix 3: Menu Option Reference Chart

Contrast

Black Level

Red

Green

Blue

Advanced

Reset

0 - 40

–30 - 0 - +30

–10 - 0 - +10

Yes, No

Picture

Lock Item

PIN Clear

Control Lock

Input Select

Input Signal *

Auto Sync.

Fine Sync.

Picture Flip

Language

INPUT2 Select

ID No. Setting

Enlarge

Panel Protection Cover

Wide Mode

DNR

Quick Shoot

Monitor Speaker Output

H-Pos.

V-Pos .

Clock

Phase

Reset

0 - 180

0 - 99

0 - 180

0 - 40

Yes, No

Off

Select the position from 1 to 4

Select the position from 1 to 9

Menu Display

Remote

Buttons

Power

RS-232C

Lock, Unlock

Setup

–15 - 0 - +15

L 30 - 0 - R 30

Yes, No

–8 - 0 - +8

Off, Mode1, Mode2

Audio

Brightness

Power Management

Input 4 digit numbers

Yes, No

Power

control

Normal, Full, Cinema, Dot by Dot *

Off, High, Low

On, Off

Option

Treble

Bass

Balance

Reset

Analog, Digital *

640 480, 720 400, 640 480, 848 480, 852 480,

1024 768, 1280 768, 1366 768, 640 480p *

Start Now

When Connected

Normal, Mirror, Upside Down, Rotate

Japanese, English, Deutsch, Français, Español

Input, Output

Input numbers from 000 to 255

C.M.S. (H)

C.M.S. (S)

C.M.S. (V)

C.M.S.

Reset

–30 - 0 - +30

Yes, No

Attached, Detached

Menu option reference chart: PC input mode

*1 May not be displayed for certain signal types.

*2 Items displayed may vary according to input signal types.

*3 Items displayed may vary according to input signal types.

» Depending on the conditions, certain menu items may be displayed in grey. These items cannot be selected.

NOTE:

××××

C.M.S. (H)

C.M.S. (S)

C.M.S. (V)

Color Temp

Black

3D-Y/C

Monochrome

Film Mode

I/P Setting

Contrast

Black Level

Color

Tint

Sharpness

Advanced

Reset

High, Mid-High, Mid, Mid-Low, Low

Off, High, Low

Standard, Fast, Slow

On, Off

Interlace, Progressive

C.M.S.

Reset

0 - 40

–30 - 0 - +30

–10 - 0 - +10

–30 - 0 - +30

Yes, No

Picture

Lock Item

PIN Clear

Wide Mode

Color System

DNR

Quick Shoot

Monitor Speaker Output

H-Pos.

V-Pos .

Reset

–10 - 0 - +10

–20 - 0 - +20

Yes, No

Off

Select the position from 1 to 4

Select the position from 1 to 9

Menu Display

Remote

Buttons

Power

RS-232C

Lock, Unlock

Setup

–15 - 0 - +15

L 30 - 0 - R 30

Yes, No

Audio

Brightness

Power Management

Input 4 digit numbers

Yes, No

Power

control

Normal, Full 14:9, Zoom 14:9, Panorama, Cinema 14:9, Cinema 16:9, Full, Underscan

Auto, PAL, SECAM, NTSC3.58, NTSC4.43

Off, High, Low

On, Off

Option

Treble

Bass

Balance

Reset

AV , Y/C

COMPONENT, RGB *

Normal, Mirror, Upside Down, Rotate

Japanese, English, Deutsch, Français, Español

Input, Output

Input numbers from 000 to 255

–8 - 0 - +8

Off, Mode1, Mode2

Attached, Detached

Control Lock

Input Select *

Position

Picture Flip

Language

INPUT2 Select *

ID No. Setting

Enlarge

Panel Protection Cover

Menu option reference chart: AV input mode

*1 This item cannot be chosen if input other than

“INPUT1” or “INPUT3” is selected.

*2 Available only for

“INPUT3”

*3 Not available when

“INPUT2” is selected.

» Depending on the conditions, certain menu items may be displayed in grey. These items cannot be selected.

NOTE:

LC-M3700 LC-M3710

DIMENSIONS

Unit: mm

909 810

99.5

66.1

462.8

949

821.6

200

12.3

105265370

6.5

572

66.1

18.5

223

200

115

142

72.5

188.3

155

38.5

335.8

REMOVING OF MAJOR PARTS

SC4101

SC4102

FPC holder (left)

PC I/F PWB shield

Wire Holder

Monitor PWB shield

FPC holder (right)

Terminal cover B

Terminal cover A

Cabinet B (bottom)

1. Remove the terminal cover.

2. Remove the four lock screws that fix the temporary stand and remove the simple stand.

3. Remove the two lock screws that fix the handle and remove the handle.

4. Remove the 29 lock screws that fix the cabinet B and remove the cabinet B.

5. Remove the seven lock screws that fix the cabinet B (bottom) and remove the cabinet B (bottom).

6. Remove the two lock screws that fix the terminal cover B and remove the terminal cover B.

7. Remove the two lock screws that fix the terminal cover A and remove the terminal cover A.

8. Remove the four lock screws that fix the PC I/F PWB shield and remove the PC I/F PWB shield.

9. Remove the four lock screws that fix the monitor PWB shield and remove the monitor PWB shield.

10. Remove the four lock screws that fix the FPC holder (left) and remove the FPC holder (left).

11. Remove the four lock screws that fix the FPC holder (right) and remove the FPC holder (right).

Handle

LC-M3700 LC-M3710

Temporary stand

Terminal cover

Handle

LC-M3700 LC-M3710

12. Disconnect the connectors from each PWB.

13. Remove the two lock screws that fix the key PWB and remove the key PWB.

14. Remove the two lock screws that fix the R/C LED PWB and remove the R/C LED PWB.

15. Remove the two lock screws that fix the speaker-L PWB and remove the speaker-L PWB.

16. Remove the two lock screws that fix the AC inlet PWB and remove the AC inlet PWB.

17. Remove the two lock screws that fix the terminal-1 PWB and remove the terminal-1 PWB.

18. Remove the two lock screws that fix the terminal-2 PWB and remove the terminal-2 PWB.

19. Remove the two lock screws that fix the speaker-R PWB and remove the speaker-R PWB.

20. Remove four lock screws that fix the speaker angle and remove the speaker angle.

SC4601

CN1703

CN1704

CN1701

CN1705

CN3702

CN2702

P7803

P7501

P7506

P7502

P7505

P7503

P7507

P151

P7504

P7551

P7552

P7554

P7553

P202

P7557

P101

CN1702

P7704

CN1706

P2003

CN1707

CN3701

CN4701

CN2701

P7802

P7707

P2004

CN9

CN8

P1101

SC4602 SC4604

CN11

CN1

SC1103

CN2001

P7705

P2005

SC4603

P1501

P1504

SC2405

P7611

P7616

P7615

P7612

P2508

P2302

P7649

P2301

P7618

P7644

P7647

P7613

P7614

P7641

P7642

P7643

P202

P1801

P1507

SC1506

P1505

SC2406

Speaker angle

Key PWB

R/C LED PWB

Speaker-LPWB

AC inlet PWB

Terminal-1 PWB

Terminal-2 PWB

Speaker-R PWB

LC-M3700 LC-M3710

21. Remove the inverter-3 PWB.

22. Remove the three lock screws that fix the inverter-4 PWB and remove the inverter-4 PWB.

23. Remove the four lock screws that fix the main PWB and remove the main PWB.

24. Remove the four lock screws that fix the monitor PWB and remove the monitor PWB and monitor PWB angle.

25. Remove the two lock screws that fix the PC I/F PWB and remove the PC I/F PWB.

26. Remove the four lock screws that fix the DC/DC PWB and remove the DC/DC PWB.

27. Remove the one lock screw that fixes the holder B assembly and remove the holder B assembly.

28. Remove the one lock screw that fixes the holder A assembly and remove the holder A assembly.

29. Remove the inverter-1 PWB.

30. Remove the one lock screw that fixes the inverter 2 PWB and remove the inverter-2 PWB.

Holder A assembly

Inverter-1 PWB

Holder B assembly

DC/DC PWB

PC I/F PWB

PC I/F PWB angle

Monitor PWB

Inverter-3 PWB

Monitor PWB angle

Inverter-2 PWB

Inverter-4 PWB

Main PWB

Power PWB

LC-M3700 LC-M3710

» Cautions in handling the liquid crystal panel

1. Handle the liquid crystal panel in a clean room (Humidity: 50% or more).

2. The operator should wear an earth band without fail.

3. Take care not to give an impact (dropping, vibrating, etc.) to the liquid crystal panel

4. Use an ionizer (within 30 cm).

32. Remove the five lock screws that fix the liquid crystal panel and remove the liquid crystal panel unit.

33. Remove the three lock screws that fix each sheet-fixing angle and remove each sheet-fixing angle.

34. Remove the reflection/shade sheet, prism sheet, diffusion sheet and diffusion plate.

35. Remove the three lock screws that fix each lamp holder (upper, lower) and remove each lamp holder (upper, lower).

36. Remove the lamp assembly from the lamp clip.

Lamp holder (upper)

Sheet-fixing angle

Lamp holder (lower)

Lamp unit

Diffusion plate

Prism sheet

Reflection/shade sheet

Back shield

Lamp holder (lower)

Lamp holder (upper)

LC-M3700 LC-M3710

ADJUSTING PROCEDURE OF EACH SECTION

[How to enter the process adjustment mode]

Caution:Take great care not to allow the customer to know the method of entering the process

adjustment mode described below. If the setting in the process adjustment mode is changed indiscriminately, an unrecoverable error may be caused.

1) Using the remote control or main body switch, put the unit in a standby state. (The power LED is "Red".)

2) Press the "MAIN POWER" button to turn off the power.

3) Press the "POWER" button on the display section to turn off the power.

4) While pressing the "INPUT" and "MENU" keys on the main body side together, press the "MAIN POWER" switch on the main body to turn on the power. If a display such as "1/16" and "N358" is shown in blue characters on one line at the top of the screen several seconds later, the process adjustment mode has been entered. Pressing any of the cursor UP/DOWN/LEFT/ RIGHT keys will display the process adjustment items. If you fail to enter the process adjustment mode (the same display as in the case of normal startup appears), repeat the above-described steps again.

1) Using the remote control or main body switch, put the unit in a standby state. (The power LED is "Red".)

2) Press the "MAIN POWER" button to turn off the power.

3) Press the "POWER" button on the display section to turn off the power.

4) While pressing the "INPUT" and "UP" keys on the main body side together, press the "MAIN POWER" switch on the main body to turn on the power. It is also possible to enter the monitor process mode by setting "KOUTEI CHANGR" on the last line of the first page of the main process mode to MONITOR with the VOL +/- key and pressing the ENTER key. To switch from the monitor process mode to the main process mode, set "KOUTEI CHANGR" on the last line of the first page of the monitor process mode to MAIN and press the ENTER key.

LC-M3700 LC-M3710

[Key operation] MENU: Used to move up by one line. RETURN: Used to move down by one line. VOL +/-: Used to change the setting on the selected line (+1/-1). Cursor UP/DOWN: Used to scroll by page (Previous/Next). Cursor RIGHT/LEFT: Used to change the setting on the selected line (+10/-10). INPUT: Used to change the input (INPUT1→ INPUT2→ INPUT3→ PC). ENTER: Used to execute the function.

[Reading of process adjustment values] The adjustment values set at the factory before shipping are stored on the main PWB of this unit (not covering all the items in the process menu). In repairing the unit, if the problem is solved only by replacing the PCI/F unit, you can read the stored adjustment values and therefore all you do is to adjust some items only.

• How to read the stored ex-factory adjustment values (backup data) Select (page7) EEPROM RECOVER, set it from "OFF" to "ON" with the "VOL" key, and then press the "ENTER" key. If "error" is displayed, you have failed to read the data and therefore have to adjust all the items.

• Adjustments required after reading the stored ex-factory adjustment values (when the data is read successfully)

Ë+Badj3.3V reference voltage adjustment Ë+Badj1.8V important component operating voltage adjustment (It is adjusted automatically by pressing the

"ENTER" key after 3.3V adjustment above.)

ËN358 WB adjusting white balance adjustment (Video) ËPAL WB adjusting white balance adjustment (Video) ËCOMP 15K WB adjusting white balance adjustment (Component 525i) ËCOMP 33K WB adjusting white balance adjustment (Component hi-vision)

[Actual adjustment]

TP4

P802P802P802

121212

Before entering the process adjustment mode, reset all the user settings. (Execute Menu [Video Adjustment]-|[Reset].)

1. Analog adjustment

1) Voltage adjustment Adjustment item Adjustment condition Adjusting method

LC-M3700 LC-M3710

1 3.3V adjustment page2

+BAdj3.3V (NTSC color bar received)

2 1.8V adjustment page2

+BAdj1.8V

2) PAL signal adjustment Adjustment item Adjustment condition Adjusting method

1 Signal input

Connect a voltmeter to TP4 of the PC I/F unit and adjust the voltage to 3.30±0.01V.

TP4

If 3.3V adjustment is completed, pressing the ENTER key on the remote control with the "+BADJ1.8V" line selected will adjust the voltage automatically. If "ERR" appears, adjust the voltage to 1.90V using pin (1) of CN9 of the PC I/F unit.

Using a signal generator, feed PAL split field color bars (containing 100% white and having color saturation of 75%) to the video signal input terminal of INPUT1 or INPUT2.

1 Setting

Set the color system is to PAL by selecting a PAL source.

MAIN PAL Y gain adjustment

Page3 PAL Y GAIN

Using pin (1) of P802, adjust the gain to

0.70±0.025Vp-p.

LC-M3700

0.53Vp-p

LC-M3710

2) PAL signal adjustment Adjustment item Adjustment condition Adjusting method

MAIN PAL color density adjustment

MAIN PAL Cr level adjustment

MAIN CONTRAST adjustment

PAL CB GAIN

CONTRAST 15k

Using pin (3) of P802, make adjustment so that the interval indicated in the figure below becomes

0.53±0.025Vp-p.

Using pin (5) of P802, make adjustment so that the interval indicated in the figure below becomes

0.53±0.025Vp-p.

0.53Vp-p

Using the IC8805 output (TP8805), adjust the contrast to 0.90±0.025Vp-p above the pedestal.

TP8805TP8805

3) SECAM signal adjustment Adjustment item Adjustment condition Adjusting method

Signal input Using a signal generator, feed SECAM split field

color bars (containing 100% white and having color saturation of 75%) to the video signal input terminal of INPUT1 or INPUT2.

Setting Set the color system to SECAM.

SECAM Y gain

2 Page4

adjustment

SECAM color density

3 Page4

adjustment

SECAM Y GAIN

SECAM CB GAIN

Using pin (1) of P802, adjust the gain to

0.70±0.025Vp-p.

Using pin (3) of P802, make adjustment so that the interval indicated in the figure below becomes

0.53±0.025Vp-p.

0.53Vp-p

3) SECAM signal adjustment Adjustment item Adjustment condition Adjusting method

LC-M3700 LC-M3710

4 MAIN SECAM Cr level SECAM CR GAIN

adjustment

Using pin (5) of P802, make adjustment so that the interval indicated in the figure below becomes

0.53±0.025Vp-p.

0.53Vp-p

4) N358 signal adjustment Adjustment item Adjustment condition Adjusting method

Signal input Using a signal generator, feed NTSC3.58 split field

color bars (containing 100% white and having color saturation of 75%) to the video signal input terminal of INPUT1 or INPUT2.

Setting Set the color system to N358.

MAIN N358 Y gain

2 page 5

adjustment

N358 Y GAIN

Using pin (1) of P802, adjust the gain to

0.70±0.025Vp-p.

MAIN N358 color

3 N358 CB GAIN

density adjustment

MAIN N358 Cr level

4 N358 CR GAIN

adjustment

MAIN N358 TINT

5 N358 TINT

adjustment

Using pin (3) of P802, make adjustment so that the interval indicated in the figure below becomes

0.53±0.025Vp-p.

Using pin (5) of P802, make adjustment so that the interval indicated in the figure below becomes

0.53±0.025Vp-p.

0.53Vp-p

Using the TB124_MAIN output (P802-3pin), make adjustment so that the bottoms of waveforms are aligned as shown in the figure below.

Should be aligned like this.

LC-M3700 LC-M3710

5) Component 15kHz signal adjustment Adjustment item Adjustment condition Adjusting method

Signal input

1 Setting

2 MAIN component 15K Page 6

CONTRAST adjustment COMP 15k (CONTRAST)

6) Component HDTV signal adjustment Adjustment item Adjustment condition Adjusting method

Signal input

1 Setting

Using a signal generator, feed component 15K full field color bars (containing 100% white and having color saturation of 100%) to the component video signal input terminal of INPUT3.

et to component 15kHz.

Using IC8805 (TP8805), adjust the contrast to

0.90±0.025Vp-p.

Using a signal generator, feed component 33K (HDTV1080i) full field color bars (containing 100% white and having color saturation of 100%) to the component video signal input terminal of INPUT3.

Set to component 33kHz.

2 MAIN component HDTV Page 6

CONTRAST adjustment COMP HD CONTRAST

Using IC8805 (TP8805), adjust the 100% white to

0.90±0.025Vp-p above the pedestal.

2. Analog adjustment

1) N358 white balance adjustment Adjustment item Adjustment condition Adjusting method

Signal input Using a signal generator, feed NTSC signal window

patterns (in-window 20IRE) to the video input terminal of INPUT1.

20IRE

LC-M3700 LC-M3710

1 Setting 2 R CUTOFF adjustment Page7

N358 R CUTOFF

Set the color system to N358.

1. On the R CUTOFF item, press the ENTER key to display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

3 G CUTOFF adjustment N358 G CUTOFF 1. On the G CUTOFF item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

4 B CUTOFF adjustment N358 B CUTOFF 1. On the B CUTOFF item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

5 Setting Set the window white level of the window pattern

from the signal generator to 80IRE.

80IRE

6 R DRIVE adjustment N358 R DRIVE 1. On the R DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

7 G DRIVE adjustment N358 G DRIVE 1. On the G DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

8 B DRIVE adjustment N358 B DRIVE 1. On the B DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

9 Setting On the item, press the ENTER key again to make the

special gamma disappear.

After performing steps 1 to 3 and 6 to 8, repeat adjustment so that the color becomes brightest for both 20IRE and 80IRE.

LC-M3700 LC-M3710

2) PAL white balance adjustment Adjustment item Adjustment condition Adjusting method

Signal input Using a signal generator, feed NTSC signal window

patterns (in-window 20IRE) to the video input terminal of INPUT1.

20IRE

1 Setting

2 R CUTOFF adjustment Page8

PAL R CUTOFF

Set the color system to PAL.

1. On the R CUTOFF item, press the ENTER key to display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

3 G CUTOFF adjustment PAL G CUTOFF 1. On the G CUTOFF item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

4 B CUTOFF adjustment PAL B CUTOFF 1. On the B CUTOFF item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

5 Setting Change the ion-window white level of the window

pattern from the signal generator to 80IRE.

80IRE

6 R DRIVE adjustment PAL R DRIVE 1. On the R DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

7 G DRIVE adjustment PAL G DRIVE 1. On the G DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

8 B DRIVE adjustment PAL B DRIVE 1. On the B DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

9 Setting On the item, press the ENTER key again to make the

special gamma disappear.

After performing steps 1 to 3 and 6 to 8, repeat adjustment so that the color becomes brightest for both 20IRE and 80IRE.

3) Component 15K white balance adjustment Adjustment item Adjustment condition Adjusting method

Signal input Using a signal generator, feed component 15K signal

(525i) window patterns (in-window 20IRE) to the video input terminal of INPUT3. Y input only is sufficient.

20IRE

LC-M3700 LC-M3710

1 Setting 2 R CUTOFF adjustment Page9

COMP 15k R CUTOFF

Set the input to INPUT3 component.

1. On the R CUTOFF item, press the ENTER key to display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

3 G CUTOFF adjustment COMP 15k G CUTOFF 1. On the G CUTOFF item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

4 B CUTOFF adjustment COMP 15k B CUTOFF 1. On the B CUTOFF item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

5 Setting Change the in-window white level of the window

pattern from the signal generator to 80IRE.

80IRE

6 R DRIVE adjustment COMP 15k R DRIVE 1. On the R DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

7 G DRIVE adjustment COMP 15k G DRIVE 1. On the G DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

8 B DRIVE adjustment COMP 15k B DRIVE 1. On the B DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

9 Setting On the item, press the ENTER key again to make the

special gamma disappear.

After performing steps 1 to 3 and 6 to 8, repeat adjustment so that the color becomes brightest for both 20IRE and 80IRE.

LC-M3700

LC-M3710

4) Component 33K white balance adjustment Adjustment item Adjustment condition Adjusting method

Signal input Using a signal generator, feed component 33K signal

(1080i) window patterns (in-window 20IRE) to the video input terminal of INPUT3. Y input only is sufficient.

20IR

1 Setting 2 R CUTOFF adjustment Page10

COMP HDTV R CUTOFF

Set the input to INPUT3 component.

1. On the R CUTOFF item, press the ENTER key to display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

3 G CUTOFF adjustment COMP HDTV G CUTOFF 1. On the G CUTOFF item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

4 B CUTOFF adjustment COMP HDTV B CUTOFF 1. On the B CUTOFF item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

5 Setting Change the in-window white level of the window

pattern from the signal generator to 80IRE.

80IR

6 R DRIVE adjustment COMP HDTV R DRIVE 1. On the R DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

7 G DRIVE adjustment COMP HDTV G DRIVE 1. On the G DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

8 B DRIVE adjustment COMP HDTV B DRIVE 1. On the B DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window becomes brightest.

9 Setting On the item, press the ENTER key again to make the

special gamma disappear.

After performing steps 1 to 3 and 6 to 8, repeat adjustment so that the color becomes brightest for both 20IRE and 80IRE.

3. Monitor section adjustment Analog adjustment

1) Voltage adjustment Adjustment item Adjustment condition Adjusting method

LC-M3700 LC-M3710

Using a signal generator, feed NTSC signal color bars to the video input terminal of INPUT1.

1 Setting

2 VLS BIAS adjustment Monitor process

adjustment mode Page2

3 GRAY LEVEL Monitor process

adjustment adjustment mode

Page2

4 COM BIAS adjustment Monitor process

adjustment mode Page2

1. Set the input to INPUT1.

2. Enter the process adjustment mode, set the KOUTEI CHANGR item on Page 1 to MONITOR with the VOL key and press the ENTER key.

3. The monitor process adjustment mode is established.

Connect a digital voltmeter to TL4103 (A-side) or TL4103 (B-side) and adjust the VLS bias to

15.00V±0.05V.

Connect a digital voltmeter to TL4102 (A-side) or TL4101 (B-side) and adjust the gray level to

14.50V±0.05V.

1. On the COM BIAS item, press the ENTER key to display the adjustment pattern.

2. Set the value so that the flicker near the center of the screen is minimized.

3. Press the ENTER key to make the pattern disappear.

LC-M3700 LC-M3710

2) Monitor white balance adjustment (15k) ~ All the video adjustments on the MAIN side should be completed before making this adjustment.

Adjustment item Adjustment condition Adjusting method

Signal input

Using a signal generator, feed composite signal (NTSC) raster patterns (20IRE) to the video input terminal of INPUT1.

20IRE

1 Setting

1. [Video Adjustment]-[Reset] execution

2. [Energy-Saving Setting]-Brightness [+8]

3. [Video Adjustment]-[Pro Setting]-[Color Temperature]-Middle

4. [Video Adjustment]-[Pro Setting]-[Black Extension]OFF

2 Adjustment Page14 Using a color meter, adjust R GAMMA 15K (LO) and

B GAMMA 15K (LO) to x=0.287, y=0.285±0.0035 (Measure the central part of the screen.)

3 Setting Using a signal generator, feed composite signal

(NTSC) raster patterns (80IRE) to the video input terminal of INPUT1.

80IRE

4 Adjustment Page14 Using a color meter, adjust R GAMMA 15K (HI) and

B GAMMA 15K (HI) to x=0.287, y=0.285±0.0015 (Measure the central part of the screen.)

5 Adjustment Page14 Change the WRITE GAMMA 15K item from OFF to

ON with the VOL key and press the ENTER key. (Execution of writing of the adjusted values.)

3) Monitor white balance adjustment (HDTV) ~ All the video adjustments on the MAIN side should be completed before making this adjustment.

Adjustment item Adjustment condition Adjusting method

LC-M3700 LC-M3710

Signal input

1 Setting

2 Adjustment Page14

3 Setting

Using a signal generator, feed component signal (1080i) raster patterns (20IRE) to the video input terminal of INPUT3. Y input only is sufficient.

20IRE

1. [Video Adjustment]-[Reset] execution

2. [Energy-Saving Setting]-Brightness [+8]

3. [Video Adjustment]-[Pro Setting]-[Color Temperature]-Middle

4. [Video Adjustment]-[Pro Setting]-[Black Extension]-OFF

Using a color meter, adjust R GAMMA (LO) and B GAMMA (LO) to x=0.287, y=0.285±0.0035 (Measure the central part of the screen.)

Using a signal generator, feed component signal (1080i) raster patterns (80IRE) to the video input terminal of INPUT3.

4 Adjustment Page14

5 Adjustment Page14

4. Factory settings Adjustment item Adjustment condition Adjusting method

1 Settings 2 Factory settings Page1

80IRE

Using a color meter, adjust R GAMMA (HI) and B GAMMA (HI) to x=0.287, y=0.285±0.0015 (Measure the central part of the screen.)

Change the WRITE GAMMA HDTV item from OFF to ON with the VOL key and press the ENTER key. (Execution of writing of the adjusted values.)

Enter the process adjustment mode. Set the INDUSTRY INIT item to ON with the VOL

+/- key and press the ENTER key.

2. When the process mode is exited and the input is set to INPUT1, factory setting has been completed.

3. Turn OFF the main power.

Items initialized through factory setting

• EUser adjustment value

• EPassword

• EAccumulated operating time (main side only)

• EID number

LC-M3700 LC-M3710

HOW TO UPGRADE THE INTERNAL PROGRAM

The program used in this unit is divided into the following two programs, which are rewritten by different methods.

• Main program

• Monitor program

[How to enter the process adjustment mode]

Caution:Take great care not to allow the customer to know the method of entering the process

adjustment mode described below. If the setting in the process adjustment mode is changed indiscriminately, an unrecoverable error may be caused.

1) Plug the power cord in the wall outlet.

2) Press the "MAIN POWER" button to turn off the power.

3) While pressing the "INPUT" and "MENU" buttons together, press the "MAIN POWER" button to turn on the power. (Keep pressing the "INPUT" and "MENU" buttons until a display appears.)

If "1/16" is displayed in blue characters on the screen several seconds later, the process adjustment mode has been entered. Pressing any of the cursor UP/DOWN/LEFT/RIGHT keys will display the 1st page of the process adjustment mode. If you fail to enter the process adjustment mode (the same display as in the case of normal startup appears), repeat the above-described steps again.

[Necessary devices]

• Personal computer Personal computer equipped with Windows 95/98/me/2000/xp Personal computer with a COM port (RS-232C). An USB-RS232C converter may be used depending on the setting, but consider the compatibility.

• RS-232C scroll cable "Interlink cable" can be used.

[Preparations]

1) Software for rewriting is provided as an executable file having a name such as "MAIN_2002_10_10A.exe"

(tentative name). Create a directory with an appropriate name on the hard disc of the PC to be used for rewriting and copy the software to it.

2) When this file is double-clicked on Windows, decompressing the compressed file is started. Carefully check

if the contents of the decompressed file correspond to the documentation attached to the program.

3) Using the RS-232C cable, connect the personal computer with the main body.

4) Enter the process adjustment mode according to "How to enter the process adjustment mode" described

above.

+ 136 hidden pages