JVC HD-70FH97, HD-70FN97 Service Manual

SERVICE MANUAL

D-ILA PROJECTION TELEVISION

YA41020068

HD-70FH97, HD-70FN97

BASIC CHASSIS

RA2

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

No.YA410

2006/9

SPECIFICATION

Items

Dimensions ( W × H × D ) 162.6 cm × 116.8 cm × 51.9 cm

Mass 71 kg (157 lbs)

TV RF System (Analog / Digital)

Color System (Analog) NTSC

Stereo System (Analog) BTSC (Multi Channel Sound)

Teletext System (Analog) Closed caption (T1-T4 / CC1-CC4)

TV Receiving Channels and Frequency (Analog)

TV / CATV Total Channel 191 Channels

Intermediate Frequency (Analog)

Color Sub Carrier Frequency (Analog) 3.58 MHz

Power Input AC120V, 60Hz

Power Consumption 215W

Projection Source 110W High-pressure mercury lamp

Projection Device D-ILA device (Reflection active matrix type LCD) x 3(R / G /B) Resolution Total=H:1952 × V:1088 [ Effective =H:1920 × V:1080 ]

Screen Transparent screen (unitized fresnel lens / lenticular lens), aspect ratio 16:9

Screen Size 70" (178cm) Measured diagonally

Audio Power Output 10W + 10W Speaker 10cm round type × 2 (Oblique corn)

Antenna Terminal (VHF/UHF, ATSC / DIGITAL CABLE IN)

Video / Audio Input [INPUT-1/2/3/4]

Digital Input Video

PC (RGB) Input D-sub 3-row 15pin × 1

Center Channel Input 500mV(rms) (-4dBs), high impedance, RCA pin jack × 1

Monitor / Recording Output

Audio Output

iLink Input/Output TS In/Out (4-pin, S400) × 2, IEEE1394 compliant DTCP digital copy protection compatible Digital Audio Optical Output Digital SPDIF × 1

RS-232C D-sub 2-row 9 pin [External control for TV set] --Remote Control Unit RM-C14G (AA/R6 / UM-3 battery × 2)

VHF Low

VHF High

Video IF

Sound IF

Component Video

[INPUT-1/2]

1125i / 750p

525p / 525i

[INPUT-1/3]

Variable

(64-1/8" × 46" × 20-1/2")

Analog

CCIR (M)

Digital

ATSC terrestrial / Digital cable

02ch - 06ch : 54MHz - 88MHz 07ch - 13ch : 174MHz - 216MHz

UHF

14ch - 69ch : 470MHz - 806MHz

CATV

54MHz - 804MHz Low Band : 02 - 06 High Band : 07 - 13 Mid Band : 14 - 22 Super Band : 23 - 36 Hyper Band : 37 - 64 Ultra Band : 65 - 94, 100 - 135 Sub Mid Band : 01, 96 - 99

45.75 MHz

41.25 MHz (4.5MHz)

H:155 cm × V:87.2cm

F-type connector, 75Ω unbalanced, coaxial × 2

RCA pin jack × 6 Y : 1V (p-p) (Sync signal: 0.35V(p-p), 3-value sync.), 75 Ω

Pb/Pr : ±0.35V(p-p), 75 Ω Y : 1V (p-p), positive (Negative sync provided), 75 Ω Pb/Pr : 0.7V(p-p), 75 Ω

S-Video

Mini-DIN 4 pin × 2 Y: 1V (p-p), positive (Negative sync provided), 75 Ω C: 0.286V (p-p) (Burst signal), 75 Ω

Video

1V (p-p), positive (Negative sync provided), 75 Ω, RCA pin jack × 4

Audio

500mV (rms), high impedance, RCA pin jack × 8 HDMI 2-row 19pin connector × 2

(Digital-input terminal is not compatible with picture signals of personal computer)

Audio

Digital: HDMI 2-row 19pin connector × 2 Analog: 500mV(rms) (-4dBs), high impedance, RCA pin jack × 2

R/G/B : 0.7V (p-p), 75Ω HD / VD : 1V (p-p) to 5V (p-p), high impedance < Available signal > VGA : 640 pixels × 480 pixels (Horizontal : 31.5kHz / Vertical : 60Hz) XGA : 1024 pixels × 768 pixels (Horizontal : 48.4kHz / Vertical : 60Hz)

S-Video

Mini-DIN 4pin × 1 Y: 1V (p-p), 75Ω C: 0.286V(p-p) (burst signal), 75Ω

Video

1V (p-p), 75Ω, RCA pin jack × 1

Audio

250mV(rms) (-10dBs), Fs-18dB low impedance, RCA pin jack × 2 RCA pin jack × 2

More than 0 to 1000mV (rms) (+2.2dBs)

Fix

500mV(rms) (-4dBs), low impedance (1000Hz when modulated 100%)

HD-70FH97 HD-70FN97

Contents

Design & specifications are subject to change without notice.

1-2 (No.YA410)

SECTION 1

PRECAUTION

1.1 SAFETY PRECAUTIONS

(1) The design of this product contains special hardware,

many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Service should be performed by qualified personnel only.

(2) Alterations of the design or circuitry of the products should

not be made. Any design alterations or additions will void the manufacturer's warranty and will further relieve the manufacturer of responsibility for personal injury or property damage resulting therefrom.

(3) Many electrical and mechanical parts in the products have

special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the parts list of Service manual. Electrical components

having such features are identified by shading on the schematics and by ( ) on the parts list in Service manual. The use of a substitute replacement which does

not have the same safety characteristics as the recommended replacement part shown in the parts list of Service manual may cause shock, fire, or other hazards.

(4) Don't short between the LIVE side ground and

ISOLATED (NEUTRAL) side ground or EARTH side ground when repairing.

Some model's power circuit is partly different in the GND. The difference of the GND is shown by the LIVE : ( ) side GND, the ISOLATED (NEUTRAL) : ( ) side GND and EARTH : ( ) side GND. Don't short between the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND and never measure the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND at the same time with a measuring apparatus (oscilloscope etc.). If above note will not be kept, a fuse or any parts will be broken.

(5) When service is required, observe the original lead dress.

Extra precaution should be given to assure correct lead dress in the high voltage circuit area. Where a short circuit has occurred, those components that indicate evidence of overheating should be replaced. Always use the manufacturer's replacement components.

(6) Isolation Check (Safety for Electrical Shock Hazard)

After re-assembling the product, always perform an isolation check on the exposed metal parts of the cabinet (antenna terminals, video/audio input and output terminals, Control knobs, metal cabinet, screw heads, earphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.

a) Dielectric Strength Test

The isolation between the AC primary circuit and all metal parts exposed to the user, particularly any exposed metal part having a return path to the chassis should withstand a voltage of 3000V AC (r.m.s.) for a period of one second. (. . . . Withstand a voltage of 1100V AC (r.m.s.) to an appliance rated up to 120V, and 3000V AC (r.m.s.) to an appliance rated 200V or more, for a period of one second.) This method of test requires a test equipment not generally found in the service trade.

b) Leakage Current Check

Plug the AC line cord directly into the AC outlet (do not use a line isolation transformer during this check.). Using a "Leakage Current Tester", measure the leakage current from each exposed metal part of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground (water pipe, etc.). Any leakage current must not exceed 0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.2mA AC (r.m.s.).

Alternate Check Method

Plug the AC line cord directly into the AC outlet (do not use a line isolation transformer during this check.). Use

an AC voltmeter having 1000Ω per volt or more sensitivity in the following manner. Connect a 1500Ω 10W resistor paralleled by a 0.15µF AC-type capacitor

between an exposed metal part and a known good earth ground (water pipe, etc.). Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Any voltage measured must not exceed 0.75V AC (r.m.s.). This corresponds to

0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.3V AC (r.m.s.). This corresponds to 0.2mA AC (r.m.s.).

AC VOLTMETER (HAVING 1000 /V, OR MORE SENSITIVITY)

0.15 F AC-TYPE

GOOD EARTH GROUND

1500 10W

PLACE THIS PROBE ON EACH EXPOSED ME TAL PAR T

(No.YA410)1-3

1.2 INSTALLATION

SERVICE MENU

1. ADJUST

2. SELF CHECK

3. I2C STOP

LOB 0 FAN 0 AUD 0

ANA 9 DIG 9

0000 0 0

1.2.1 HEAT DISSIPATION

If the heat dissipation vent behind this unit is blocked, cooling efficiency may deteriorate and temperature inside the unit will rise. The temperature sensor that protects the unit will be activated when internal temperature exceeds the predetermined level and power will be turned off automatically. Therefore, please make sure pay attention not to block the heat dissipation vent as well as the ventilation outlet behind the unit and ensure that there is room for ventilation around it.

Do not put foreign objects near the ventilation holes as this can result in fire or electrical hazards. Do not block the ventilation holes as this may cause the internal temperature to rise and possibly result fire.

1.3 LAMP UNIT HANDLING CAUTION

LAMP UNIT : TS-CL110UAA

1.3.1 PRECAUTION FOR LAMP UNIT The lamp emits high intensity white, ultraviolet and infrared light. Do not look directly at the light during service. Also, do not touch the lamp directly as it presents a burn hazard. Handle with extra care. This lamp emits high heat and contains high-pressure during use. Do not give any impact as this may cause the broken lamp.

Intake hole

*Diagram differs from actual appearance.

Exhaust hole

1.2.2 INSTALLATION REQUIREMENTS

Ensure that the minimal distance is maintained, as specified fingure, between the unit with and the surrounding walls, as well as the floor etc. Install the unit on stable flooring. Take precautionary measures to prevent the unit from tipping in order to protect against accidents and earthquakes.

CAUTION FOR INSTALLATION

• Do not tilt the TV towards the left or right, or toward the back.

• Install the TV in a corner on the floor so as to keep cords out of the way.

• The TV will generate a slight amount of heat during operation. Ensure that sufficient space is available around the TV to allow satisfactory cooling.

200 mm

150 mm

LAMP

POWER

*Diagram differs from actual appearance.

150 mm

200 mm

INPUT

OPERATE

INPUT-4

CHANNEL

VIDEO

L/MONO

VOLUME

R AUDIO

50 mm

1.3.2 HOW TO CONFIRM LAMP OPERATING TIME

• MAXIMUM COUNT TIME= 65535 hours (1) Set to "0 minutes" using the [SLEEP TIMER] key. (2) Press the [VIDEO STATUS] key and [DISPLAY] key

simultaneously, then enter the SERVICE MODE.

(3) When the SERVICE MENU SCREEN is displayed, press

[2] key to enter the SELF CHECK MODE.

(4) The use time of a lamp is displayed on middle of the screen

by the hexadecimal number of 4 figures.

SERVICE MENU SCREEN

SERVICE MENU

1. ADJUST

2. SELF CHECK

3. I2C STOP

SELF CHECK MODE SCREEN (Page 1)

LOB 0 FAN 0 AUD 0

ANA 9 DIG 9

0000 0 0

Lamp operation time (Hexadecimal)

CALCULATION EXAMPLE OF LAMP USE TIME

Ex. Display number=12EF

1x16

+2x162+Ex16+Fx1=1x4096+2x256+14x16+154847 hours

1-4 (No.YA410)

1.3.3 LAMP UNIT REPLACEMENT

(1) The lamp replacement message will appear when need to

change the lamp. After replace the lamp, need to reset the timer which is built into TV.

(2) Lamp use time can be check at the lamp message MENU.

If lamp use time exceeds 5000 hours, the message of Fig.1 will be displayed on a screen.

(3) If Fig.1 message appears when turn the TV on, need to

replace the lamp.

(4) Use the lamp timer reset only after replacing the lamp.

NOTE:

• This message will appear every time turn on the TV, when the lamp needs to be replaced. Press the [OK] key to make the message disappear, or replace the lamp.

LAMP REPLACEMENT MESSAGE

LAMP NEEDS TO BE REPLACED. REFER TO OWNER'S MANUAL FOR REPLACEMENT INSTRUCTIONS.

AFTER REPLACING THE LAMP, PLEASE RESET TIMER IN THE TV MENU.

PRESS OK, IF YOU DO NOT WANT TO SEE THIS MESSAGE AGAIN.

1.3.6 PRECAUTION FOR REPLACEMENT

• Do not replace the LAMP UNIT immediately after the projector has been used.

• The temperature of the LAMP UNIT is still high and could cause a burn.

• Allow a cooling period of 1 hour or more before performing replacement.

• Before starting LAMP UNIT replacement work, turn off the MAIN POWER switch, and disconnect the AC power cord plug from the wall outlet.

• If touched, the lamp glass surface may rupture and burns may result. Do not touch the glass portion or metal portion. Handle only plastic handle.

• The replaced old lamp can be discarded in the same manner as a fluorescent lamp. Check local ordinances and dispose of the used lamp as prescribed.

Fig.1

1.3.4 HOW TO REPLACE THE LAMP UNIT

• Refer to the "USERS GUIDE" for a detailed operating description. (1) Turn off the TV power. (2) After the LAMP LED light has stopped blinking, disconnect

the power cord from the AC outlet.

(3) Loosen 1 screw then take out the lamp cover below the left

side of the TV. (4) Loosen 2 screws then take out the lamp unit. (5) Install the new lamp unit. (6) Re-install the lamp cover.

NOTE:

• After installing the new lamp unit, do not forget to reset the

lamp timer.

1.3.5 HOW TO RESET THE LAMP TIMER

• Refer to the "USERS GUIDE" for a detailed operating description. (1) Press the [MENU] key to select CLOCK / TIMERS. (2) Select the <LAMP TIMER RESET> with [] / [] keys. (3) Enter the <LAMP TIMER RESET> mode, the following

message will appears.

PRESS OK TO RESET THE LAMP TIMER

(4) Press the [OK] key while the above message appears on

the screen.

(5) The lamp timer has now been reset, and the following

message will appear.

THE LAMP TIMER IS RESET SUCCESSFULLY

(No.YA410)1-5

1.4 SERVICE PARTS KIT INSTRUCTIONS

Due to the character of this product, these OPTICAL /DRIVE ASS'Y are prepared. Please note these OPTICAL/DRIVE ASS'Y when replacing or ordering the parts.

OPTICAL/DRIVE ASS'Y

1.4.1 PART NUMBER AND CONSTRUCTION

Kit parts number Kit part name

TS-COP13A-SAA OPTICAL / DRIVE ASS'Y

1.4.2 OPTICAL / DRIVE ASS'Y CONSTRUCTION

(1) OPTICAL BLOCK

(Included D-ILA DEVICE, PROJECTION LENS) (2) OPTICAL BASE (3) DRIVE PWB ASS'Y

This PWB is mounted with 1 memory IC saved with

adjustment, setting data of the drive circuit. (4) SHIELD COVER *The following parts without the kits part.

• REMOTE SENSOR PWB ASS'Y

• LAMP UNIT

• LAMP FAN DUCT

• THERMOSTAT

1.5 SCREEN HANDLING CAUTIONS

1.5.1 SCREEN STORAGE

Store the SCREEN ASS'Y in a standing position in order to avoid deformation. If the screen is stored horizontally, there is risk of deforming the screen face. When necessary to place the SCREEN ASS'Y horizontally, position the screen side upwards and sure to place spacers between the screen and resting site (floor or stand etc.) to prevent the screen from sagging.

1.5.2 SCREEN SURFACE

Since the screen surface is easily scratched or soiled, use ample care when handling.

1.5.3 PRECAUTIONS FOR CLEANING AND REPLACEMENT

• The SCREEN ASS'Y is made from the lenticular lens and fresnel lens. The anti static proceeding and the surface of the lenticular lens. Rubbing the surface with something hard, the coating may peel off.

• When the screen is dirty, gently wipe it with a soft cloth. If the screen is very dirty, wipe it down with a cloth dipped in a diluted kitchen cleaner (neutrality detergent) and thoroughly wrung-out. Then wipe immediately after with clean, dry cloth. Never use the organic solvent such as the alcohol or benzine.

• The SCREEN ASS'Y replacement is required if the coating was peel off. Alkaline detergent or acidity detergent can not be be used.

• The notched side of the lenticular lens and the fresnel lens are faced each other.

• Do not rub the screen when cleaning it or replaceing it. Rubbing the screen may cause of the scratch of the screen by its notch.

1.4.3 PRECAUTION FOR USING

(1) In the case of the following defects/problems, replace this

kit (OPTICAL/DRIVE ASS'Y)

a) Picture defect caused by optical system/D-ILA device

related parts.

b) Picture defect caused by drive circuit.

(2) The DRIVE PWB ASS'Y is mounted with a memory IC

[IC3753 SHADING, etc.) of the drive circuit. The data of this memory IC is in the optimal state according to individual D-ILA devices and each section of the OPTICAL BLOCK.

(3) When replace the DRIVE PWB ASS'Y, take off the 1

memory IC from the original board and replace with new one. When replace the DRIVE PWB ASS'Y, do same manner. Replace 1 memory IC.

(4) After the replacement of the OPTICAL BLOCK, projection

lens focus adjustment and drive convergence / projection adjustment are required.

1-6 (No.YA410)

] saved with adjustment/setting data(GAMMA,

2.1 SYSTEM SETTEING

SERVICE MENU

1. ADJUST

2. SELF CHECK

3. I2C STOP

LOB 0 FAN 0 AUD 0

ANA 9 DIG 9

0000 0 0

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

Be sure to carry out the following operation at the end of the procedure.

(1) Set to "0 minutes" using the [SLEEP TIMER] key. (2) While "0 minutes" is displayed, press the [VIDEO

STATUS] key and [DISPLAY] key simultaneously, then enter the SERVICE MODE.

(3) When the SERVICE MENU SCREEN is displayed, press

[2] key to enter the self check mode.

(4) Turn off the power by pressing the [POWER] key on the

remote control unit.

2.2 FEATURES

Built in ATSC (Advanced Television Systems Committee) TUNER

This TV can receive both Digital broadcasting (ATSC) and Analogue broadcasting.

D.I.S.T. (Digital Image Scaling Technology)

This system uses line interpolation to double the number of scanning lines and achieve high resolution, flicker-free picture.

SMART CAPTION

Smart caption will appear when you press the MUTING button, only on channels where the broadcast contains CLOSED CAPTION information.

VIDEO STATUS

Expression of a favorite screen can be chosen by the VIDEO STATUS function.

DIGITAL INPUT

Digital-in will display when any picture signal in Digital-in is displayed.

V-CHIP

Since the V-CHIP is built in, it can choose, view and listen to a healthy program.

SERVICE MENU SCREEN

SERVICE MENU

1. ADJUST

2. SELF CHECK

3. I2C STOP

SELF CHECK MODE SCREEN

LOB 0 FAN 0 AUD 0

ANA 9 DIG 9

0000 0 0

MTS STEREO

The voice multiplex function of the MTS system is built in. (MTS = Multi channel Television Sound system)

MPEG Noise Reduction

This function effects the block noise removal and mosquito NR simultaneously.

MaxxBass

This function emphasizes the bass sound.

A.H.S.+

Adds a more spacious surround sound. Music gives basic effect, and movie for more effect.

VOICE ENHANCEMENT

Gives a clearer sound quality of the voices in what you are watching.

NATURAL CINEMA

Watching the movie or animation, press the Natural Cinema to adjust the out line of the images to make thin more sharp.

VIDEO INPUT LABEL

This function is used to label video input connections for the onscreen displays.

2.3 MAIN DIFFRENCE LIST

Item HD-70FH97 HD-70FN97

DIGITAL PWB SRA0D122A-M2 SRA0D125A-M2

ANALOG PWB SRA-1015A-M2 SRA-1016A-M2

SIDE CONTROL PWB SRA0L012A-M2 SRA0L013A-M2

(No.YA410)1-7

2.4 TECHNICAL INFORMATION

2.4.1 D-ILA DEVICE SPECIFICATION

Item Content

Resolution H: 1952 × V:1088

Pixel number about 2123776

Pixel size H : 8.1µm × V :8.1µm

Aspect ratio 16 : 9

Contrast ratio 5000 : 1

Aperture ratio 89% or more

Effective pixel measurement 0.7 inch

2.4.2 PROJECTION UNIT

R DEVICE

B DEVICE

2.4.4 D-ILA DEVICE STRUCTURE

R / G / B DEVICE (SIDE VIEW)

Back

Plane

Flat film

Reflective pixel electrode

Liquid crystal

Glass substrate

Incident light Projection light

FRONT

Transparent electrode

G DEVICE

OPTICAL IRIS

2.4.3 IMAGE LIGHT FLOW

DEVICE UNIT SECTION (TOP VIEW)

Projection

light

BRG

Device

Mirror

Incident light

Lamp unit

FRONT

Device

BRG

Incident

light

PIXEL VIEW (FRONT VIEW)

8.1 m

Pixel

8.1 m

1-8 (No.YA410)

Device

MirrorMirror

2.4.5 MAIN CPU PIN FUNCTION [IC7601

Pin Pin name I/O Function Pin Pin name I/O Function

1 VHOLD1 I Data slice for main screen closed caption 51 NC O Not used

2 HFLT1 I/O LPF for main screen closed caption video input 52 NC O Not used

3 NC O Not used 53 NC O Not used

4 NC O Not used 54 NC O Not used

5 DIGR0 O R [0] for OSD 55 NC O Not used

6 TB1in I AC power for timer clock 56 NC O Not used

7 REMO I Remote control 57 NC O Not used

8 BYTE I Data bus width select [L = 16bit (fixed)] 58 NC O Not used

9 CNVss I CPU programming mode select [Normal = L] 59 NC O Not used

10 DIGG0 O G [0] for OSD 60 NC O Not used

11 DIGB0 O B [0] for OSD 61 NC O Not used

12 RESET I Reset for main CPU [Reset = L] 62 HSYNC I H. sync for OSD

13 Xout O System clock osillation (crystal) : 16MHz 63 NC O Not used

14 Vss - GND 64 VSYNC I V. sync for OSD

15 Xin I System clock osillation (crystal) : 16MHz 65 NC O Not used

16 VccI I 3.3V stand-by power supply 66 NC O Not used

17 OSC1 I Clock for OSD 67 NC O Not used

18 OSC2 O Not used : Clock for OSD 68 NC O Not used

19 INT1 I Not used: AV COMPULINK control 69 NC O Not used

20 INT0 I

21 OUT1 O Ys (blanking) for OSD 71 P2.1 O Not used: Clock for Inter IC (serial) bus control

22 OUT2 O YM (transparence) for OSD 72 P2.0 I/O Not used: Data for Inter IC (serial) bus control

23 NC O Not used 73 NC O Not used

24 NC O Not used 74 NC O Not used

25 NC O Not used 75 NC O Not used

26 NC O Not used 76 NC O Not used

27 CTA2/RTS2 O Not used 77 NC O Not used

28 CLK2 O Not used 78 NC O Not used

29 RxD2 I Digital tuner control 79 NC O Not used

30 TxD2 O Digital tuner control 80 P1.0 O Not used: Function LED lighting

31 SDA2 I/O Not used 81 P0.7 O Not used: Communication LED lighting

32 DIGR1 O R [1] for OSD 82 P0.6 O Test point

33 DIGG1 O G [1] for OSD 83 NC O Not used

34 DIGB1 O B [1] for OSD 84 WAKE O Reset for sub(chassis) CPU

35 TxD0 I Data receive (serial) for external programming 85 CARD_DET I Not used

36 RxD0 O Data transmission (serial) for external programming 86

37 CLK0 I Clock for external programming 87 SDA I/O Data for Inter IC (serial) bus control : memory

38 RTS0 O Busy for external programming [Operation = H] 88 SLC O Clock for Inter IC (serial) bus control : memory

39 P5.7 I Not used 89 DIGR2 O R [2] for OSD

40 P5.6 O Not used 90 DIGG2 O G [2] for OSD

41 HOLD I CPU programming mode select [Normal = H] 91 DIGB2 O B [2] for OSD

42 P5.4 O Not used 92 NC O Not used

43 P5.3 O Not used 93 KEY2 I

44 P5.2 O Not used 94 KEY1 I

45 P5.1 O Not used 95 VHOLD2 I Data slice for sub screen closed caption

46 WR O CPU programming mode select [Normal = L] 96 HLF2 I/O LPF for sub screen closed caption video input

47 P4.7 O

48 P4.6 I

49 P4.5 I Clock for sub(chassis) CPU communication (serial) 99 VCCE I 5V stand-by power supply

50 P4.4 O Not used 100 CVIN1 I Video(Y) for main screen closed caption

Request for sub(chassis) CPU communication (serial data)

Data transmission for sub(chassis) CPU communication (serial)

Data receive for sub(chassis) CPU communication (serial)

: DIGITAL PWB ASS'Y]

70 NC O Not used

POWER_SW

97 CVIN2 I Video(Y) for sub screen closed caption

98 TVSETB I Test terminal [L Fixed]

I Power switch (mechanical) detection

Key scan data for front control button (MENU/CH+/CH-) KEY2

Key scan data for front control button (INPUT/VOL+/VOL-) KEY1

(No.YA410)1-9

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

CAUTION AT DISASSEMBLY:

• Be sure to perform the SYSTEM SETTEING, at the end of the procedure.

• Make sure that the power cord is disconnected from the outlet.

• Pay special attention not to break or damage the parts.

• When removing each board, remove the connectors as required. Taking notes of the connecting points (connector numbers) makes service procedure manageable.

• Make sure that there is no bent or stain on the connectors before inserting, and firmly insert the connectors.

• Wait until the LAMP UNIT has cool down is completely.

• While not in repair service, place the chassis back its original position.

3.1.1 FRONT SIDE DISASSEMBLY

3.1.1.1 REMOVING THE SPEAKER GRILL (Fig.1)

(1) Remove the 2 screws [A]. (2) Remove the SPEAKER GRILL.

NOTE :

As a speaker grille is depressed downward, it is removed.

3.1.1.2 REMOVING THE ORNAMENT PANEL (Fig.1)

• Remove the SPEAKER GRILL. (1) Remove the 6 screws [B]. (2) Remove the ORNAMENT PANEL.

3.1.1.3 REMOVING THE CENTER PANEL (Fig.1)

• Remove the SPEAKER GRILL. (1) Remove the 4 screws [C]. (2) Remove the CENTER PANEL.

3.1.1.7 REMOVING THE SCREEN BLOCK (Fig.1)

• Remove the SPEAKER GRILL.

• Remove the SPEAKER.

• Remove the FRONT PANEL. (1) Remove the 6 screws [H] and 8 screws [J]. (2) Remove the SCREEN BLOCK.

CAUTION :

• Place the SCREEN BLOCK on a flat table without fail.

• Because of the large size, at least 2 persons are

recommended for removal and reassemble.

• Use care not to scratch the screen during work.

• During assembly, be sure to engage the left and right tabs

with the cabinet mounting positions.

• When supporting the SCREEN BLOCK, avoid grasping the

top of the screen panel, instead grasp the left and right areas.

• Do not leave the SCREEN BLOCK removed for long time to

prevent soiling from dust.

3.1.1.4 REMOVING THE FRONT LED PWB (Fig.1)

• Remove the SPEAKER GRILL. (1) Remove the 2 screws [D]. (2) Remove the FRONT LED PWB.

NOTE :

Remove the earth wire connected to the FRONT LED PWB simultaneously.

3.1.1.5 REMOVING THE SPEAKER (Fig.1)

• Remove the SPEAKER GRILL. (1) Remove the 4 screws [E]. (2) Remove the SPEAKER. (3) Remove the opposite SPEAKER by the same method.

3.1.1.6 REMOVING THE FRONT PANEL (Fig.1)

• Remove the SPEAKER GRILL.

• Remove the SPEAKER. (1) Remove the 10 screws [F] from rear side. (2) Remove the 20 screws [G] from front side. (3) Remove the FRONT PANEL.

3.1.1.8 REMOVING THE SCREEN ASS'Y (Fig.1)

• Remove the SPEAKER GRILL.

• Remove the SPEAKER.

• Remove the FRONT PANEL.

• Remove the SCREEN BLOCK. (1) Remove the 11 screws [K]. (2) Remove the SCREEN BRACKET and SCREEN ASS'Y.

CAUTION :

• When replacing the SCREEN ASS'Y, confirm each

SPACER is fit on the SCREEN BRACKET without fail.

• Place the SCREEN ASS'Y on a flat table without fail.

• Because of the large size, at least 2 persons are

recommended for removal and reassemble.

• Use care not to scratch the screen during work.

3.1.1.9 REMOVING THE CENTER COVER (Fig.1)

• Remove the SPEAKER GRILL.

• Remove the FRONT PANEL. (1) Remove the 2 screws [L]. (2) Remove the CENTER COVER.

1-10 (No.YA410)

SCREEN ASS'Y

SPACER

SCREEN BRACKET

SCREEN BLOCK

SPACER

FRONT BRACKET

FRONT PANEL

SPEAKER

SPACER

BACK COVER

MAIN BODY

SCREEN BLOCK

FRONT

CENTER

PANEL

ORNAMENT PANEL

FRONT LED PWB

SPEAKER GRILL

SPEAKER

Fig.1

CENTER COVER

(No.YA410)1-11

3.1.1.10 REMOVING THE MIRROR (Fig.2)

• Remove the SPEAKER GRILL.

• Remove the SPEAKER.

• Remove the FRONT PANEL.

• Remove the SCREEN BLOCK. (1) Remove the 2 screws [A] attaching the MIRROR HOLDER

STOPPER.

(2) Remove the 2 screws [B] and 2 screws [C] attaching the

MIRROR HOLDER upper side.

(3) Remove the 4 screws [D], 6 screws [E] and 2 screws

[F]attaching the MIRROR HOLDER of left and right side.

(4) Raise slightly to disengage of the MIRROR from the bottom

holder.

NOTE:

• Do not touch the front of the MIRROR.

• Do not shock the MIRROR.

• Because of the large size, at least 2 persons are

recommended for removal and reassemble.

3.1.1.11 REMOVING THE BACK COVER BRACKET (Fig.2)

• Remove the SPEAKER GRILL.

• Remove the SPEAKER.

• Remove the FRONT PANEL.

• Remove the SCREEN BLOCK. (1) Remove the 6 screws [G] and 1 screw [H]. (2) Remove the rear side BACK COVER BRACKET. (3) Remove the 4 screws [J]. (4) Remove the left side BACK COVER BRACKET. (5) Remove the right side BACK COVER BRACKET by the

same method.

3.1.1.13 REMOVING THE SPEAKER BOX (Fig.2)

• Remove the SPEAKER GRILL.

• Remove the SPEAKER.

• Remove the FRONT PANEL.

• Remove the SCREEN BLOCK.

• Remove the BACK COVER BRACKET. (1) Remove the 3 screws [M]. (2) Remove the SPEAKER BOX. (3) Remove the opposite SPEAKER BOX by the same

method.

3.1.1.14 REMOVING THE BACK COVER (Fig.2)

• Remove the SPEAKER GRILL.

• Remove the SPEAKER.

• Remove the FRONT PANEL.

• Remove the SCREEN BLOCK.

• Remove the BACK COVER BRACKET.

• Remove the SPEAKER BOX. (1) Remove the 4 screws [N] and 2 screws [P]. (2) Remove the BACK COVER.

3.1.1.15 REMOVING THE SHADE COVER (Fig.2)

• Remove the SPEAKER GRILL.

• Remove the SPEAKER.

• Remove the FRONT PANEL.

• Remove the SCREEN BLOCK.

• Remove the BACK COVER BRACKET.

• Remove the SPEAKER BOX.

• Remove the BACK COVER. (1) Remove the 2 screws [Q]. (2) Remove the SHADE COVER.

3.1.1.12 REMOVING THE SIDE CONTROL PWB (Fig.2)

• Remove the SPEAKER GRILL.

• Remove the SPEAKER.

• Remove the FRONT PANEL.

• Remove the SCREEN BLOCK. (1) Remove the 4 screws [K]. (2) Remove the SIDE CONTROL BASE. (3) Remove the 2 screws [L]. (4) Remove the SIDE CONTROL PWB.

1-12 (No.YA410)

MIRROR HOLDER

BRACKET

MIRROR HOLDER

(L)

BACK COVER

BRACKET

(REAR)

MIRROR

HOLDER

STOPPER

MIRROR HOLDER (UPPER)

MIRROR

HOLDER

BRACKET

BACK COVER

MIRROR

HOLDER

(R)

MIRROR

BACK COVER

BRACKET

(FRONT)

SIDE

CONTROL

PWB

BACK COVER

BRACKET

(L/R)

SIDE

CONTOROL

BASE

MAIN BODY

SPEAKER BOX

FRONT

SHADE COVER

SPEAKER BOX

Fig.2

(No.YA410)1-13

3.1.2 REAR SIDE DISASSEMBLY

3.1.2.1 REMOVING THE LAMP UNIT (Fig.3)

(1) Remove the 1 screw [A]. (2) Remove the LAMP COVER. (3) Remove the 2 screws [B] (4) Pull out the LAMP UNIT.

NOTE :

• Do not leave the LAMP COVER removed for long time to prevent dirt and dust form covering the lens.

• Make sure that the LAMP COVER is completely installed.

3.1.2.4 REMOVING THE AV TERMINAL BOARD (Fig.3)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT. (1) Remove the 3 screws [H], 3 screws [J] and the 8 screws [K]. (2) Remove the 2 hex screws [L]. (3) Remove the nut attaching the ANTENNA TERMINAL. (4) Remove the AV TERMINAL BOARD.

3.1.2.2 REMOVING THE BODY COVER (Fig.3)

(1) Remove the 9 screws [C] and the 2 screws [D]. (2) Remove the 5 screws [E]. (3) Remove the BODY COVER.

NOTE :

• Do not leave the BODY COVER removed for long time to prevent soiling from dust.

3.1.2.3 REMOVING THE MAIN UNIT (Fig.3)

• Remove the LAMP COVER.

• Remove the BODY COVER. (1) Remove the 4 screws [F] (2) Remove the BODY BRACKET. (3) Remove the 2 screws [G] (4) The MAIN UNIT is pulled out to the back side.

CAUTION :

• Except for confirmation of projection images on the

screen and audio output through the speakers, the removed MAIN UNIT is still workable in the same state as if it is still built-in the TV set. Therefore, the MAIN UNIT can be removed, if necessary, for board diagnosis, electric testing, etc. apart from confirmation of screen images and audio output. Do not leave the MAIN UNIT removed for long time to prevent soiling from dust.

• Because of the large size, at least 2 persons are

recommended for removal and reassemble.

• When carrying the MAIN UNIT, use care not to drop,

shock or shake it.

• Do not stain or damage the projection lens.

• Do not look directly at the light during service.

• Do not touch the lamp directly as it presents a burn

hazard.

NOTE :

• When not performing repair work, attach the cap on the lens

to preventing dust from covering.

• When mounting to the set, make sure the front of the lens is

in contact with the cushion on the set (body) side.

• Make sure that FRONT LED PWB connector is completely

connect to the ANALOG PWB connector.

• When wire clamps are removed during work, use care to

restore them precisely to their original positions. Performance can be affected if these are not returned to the original positions.

3.1.2.5 REMOVING THE POWER PWB (Fig.3)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT. (1) Remove the POWER CORD. (2) Remove the 7 screws [M]. (3) Remove the POWER PWB.

3.1.2.6 REMOVING THE TUNER PWB (Fig.3)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT.

• Remove the AV TERMINAL BOARD. (1) Remove the 1 screw [N]. (2) Remove the HANGER BRACKET with TUNER PWB. (3) Remove the 3 screws [P]. (4) Remove the TUNER PWB.

3.1.2.7 REMOVING THE ANALOG PWB (Fig.3)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT.

• Remove the AV TERMINAL BOARD.

• Remove the POWER PWB and TUNER PWB. (1) Remove the 4 screws [Q]. (2) Remove the ANALOG PWB.

1-14 (No.YA410)

3.1.2.8 REMOVING THE DIGITAL PWB (Fig.3)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT.

• Remove the AV TERMINAL BOARD.

• Remove the POWER PWB and TUNER PWB.

• Remove the ANALOG PWB. (1) Remove the 1 screw [R]. (2) Remove the DIGITAL PWB BRACKET with DIGITAL PWB

and ATSC TUNER PWB. (3) Remove the 8 screws [S]. (4) Remove the DIGITAL PWB SHIELD COVER. (5) Remove the 9 screws [T]. (6) Remove the DIGITAL PWB.

CAUTION :

• Make sure to perform the "SYSTEM SETTEING" , when

DIGITAL PWB is replaced.

• Especially, because the value of F001 (DD) might been

changed, go through next steps to confirm the setting value with the remote control unit. (1) Set to "0 minutes" using the [SLEEP TIMER] key. (2) While "0 minutes" is displayed, press the [VIDEO

STATUS] key and [DISPLAY] key simultaneously,

then enter the SERVICE MODE. (3) Press [1] key to enter the ADJUSTMENT MODE. (4) Select < F001 >.

(5) Confirm the value to "000", and set it to "000" when not

"000". (6) Press [MUTING] key to memorize the data. (7) Press [BACK] key twice to exit the SERVICE MODE.

3.1.2.10 REMOVING THE ATSC TUNER PWB (Fig.3)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT.

• Remove the AV TERMINAL BOARD.

• Remove the POWER PWB and TUNER PWB.

• Remove the ANALOG PWB.

• Remove the ATSC TUNER COOLING FAN. (1) Remove the 8 screws [V]. (2) Remove the ATSC TUNER SHIELD COVER. (3) Remove the 5 screws [W]. (4) Remove the ATSC TUNER PWB.

3.1.2.11 REMOVING THE SD CARD PWB (Fig.3)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT. (1) Remove the 2 screws [X]. (2) Remove the SD CARD BRACKET with the SD CARD PWB. (3) Remove the 2 screws [Y]. (4) Remove the SD CARD PWB.

3.1.2.9 REMOVING THE ATSC TUNER COOLING FAN (Fig.3)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT.

• Remove the AV TERMINAL BOARD.

• Remove the POWER PWB and TUNER PWB.

• Remove the ANALOG PWB. (1) Remove the 1 screw [R]. (2) Remove the DIGITAL PWB BRACKET with ATSC TUNER

PWB. (3) Remove the 4 screws [U]. (4) Remove the ATSC TUNER COOLING FAN.

(No.YA410)1-15

MAIN BODY

FRONT

POWER PWB

HANGER BRACKET

TUNER PWB

ANALOG PWB

LAMP COVER

LAMP UNIT

BODY BRACKET

ATSC TUNER COOLING FAN

ATSC TUNER SHIELD COVER

DIGITAL PWB SHIELD COVER

ATSC TUNER PWB

DIGITAL PWB

DIGITAL PWB BRACKET

SD CARD PWB

SD CARD BRACKET

AV TERMINAL BOARD

1-16 (No.YA410)

MAIN UNIT

POWER CORD

BODY COVER

Fig.3

3.1.2.12 REMOVING THE LAMP COVER SW PWB (Fig.4)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT. (1) Remove the 2 screws [A]. (2) Remove the LAMP COVER SW BRACKET with LAMP

COVER SW PWB. (3) Remove the 1 screw [B]. (4) Remove the LAMP COVER SW PWB.

3.1.2.13 REMOVING THE TERMOSTAT (Fig.4)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT. (1) Remove the 2 screws [C]. (2) Remove the THERMOSTAT.

3.1.2.14 REMOVING THE LAMP FAN DUCT (Fig.4)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT.

• Remove the THERMOSTAT. (1) Remove the 5 screws [D]. (2) Remove the LAMP FAN DUCT.

3.1.2.15 REMOVING THE LAMP COOLING FAN -1 (Fig.4)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT.

• Remove the LAMP FAN DUCT. (1) Remove the 2 screws [E]. (2) Remove the COOLING FAN BRACKET by pulling

transversally. (3) Remove the 2 screws [F]. (4) Remove the LAMP COOLING FAN-1.

3.1.2.16 REMOVING THE LAMP COOLING FAN -2 (Fig.4)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT.

• Remove the LAMP FAN DUCT.

• Remove the COOLING FAN BRACKET. (1) Remove the 2 screws [G]. (2) Remove the LAMP COOLING FAN -2.

3.1.2.17 REMOVING THE LAMP BALLAST BLOCK (Fig.4)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT. (1) Remove the 2 screws [H]. (2) Remove the LAMP BALLAST UNIT. (3) Remove the 1 screw [J]. (4) Remove the LAMP BALLAST BRACKET.

3.1.2.18 REMOVING THE IRIS PWB (Fig.4)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT. (1) Remove the 2 screws [K]. (2) Remove the IRIS PWB.

3.1.2.19 REMOVING THE REMOCON PWB(Fig.4)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT. (1) Remove the 1 screw [L]. (2) Remove the REMOCON PWB.

3.1.2.20 REMOVING THE OPTICAL / DRIVE ASS'Y (Fig.4)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT.

• Remove the LAMP FAN DUCT. (1) Remove the 7 screws [M], 6 screws [N] and 1 screw [P]. (2) Remove the OPTICAL / DRIVE ASS'Y.

• OPTICAL BLOCK (D-ILA device, PBS, Field lens, Integrater, Mirror etc.)

• PROJECTION LENS

• Optical base

• DRIVE PWB

• IRIS PWB

• TOP DUCT

• SHIELD COVER

NOTE :

• The OPTICAL / DRIVE ASS'Y contains precision optical components.

• Handle carefully and avoid imparting strong shock.

• OPTICAL / DRIVE ASS'Y construction

• When not performing repair work, attach the cap on the lens to preventing dust from covering.

• When mounting to the set, make sure the front of the lens side is in contact with the cushion on the body side.

• Do not leave the OPTICAL / DRIVE ASS'Y removed for long time to prevent soiling from dust.

(No.YA410)1-17

3.1.2.21 REMOVING THE DRIVE PWB (Fig.4)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT. (1) Slide the TOP DUCT PLATE and remove it. (2) Remove the 1 screw [Q] and the 1 screw [R]. (3) Remove the TOP DUCT. (4) Remove the SHIELD TOP CASE. (5) Remove the 3 screws [S] and the 1 screw [T]. (6) Remove the DRIVE PWB.

3.1.2.22 REMOVING THE OPTICAL BLOCK COOLING FAN

(Fig.4)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT.

• Remove the LAMP FAN DUCT.

• Remove the OPTICAL / DRIVE ASS'Y (1) Remove the 2 screws [U]. (2) Remove the SIROCCO TOP CASE. (3) Remove the 2 screws [V]. (4) Remove the OPTICAL BLOCK COOLING FAN.

3.1.2.23 REMOVING THE PROJECTION LENS (Fig.4)

• Remove the LAMP COVER.

• Remove the BODY COVER.

• Remove the BODY BRACKET.

• Remove the MAIN UNIT. (1) Remove the 4 screws [W]. (2) Remove the PROJECTION LENS.

1-18 (No.YA410)

PROJECTION LEN

FRONT

REMOCON PWB

OPTICAL / DRIVE ASS'Y

TOP DUCT PLATE

TOP DUCT

THERMOSTAT

LAMP BALLAST BLOCK

THERMO PWB

SIROCCO TOP CASE

LAMP BALLAST UNIT

LAMP BALLAST BRACKET

SHIELD TOP CASE

DRIVE PWB

SHIELD COVER

PROJECTION

LEN

LENS

IRIS PWB

LAMP FAN DUCT

LAMP COOLING FAN-1

LAMP

COOLING FAN-2

COOLING FAN BRACKET

OPTICAL BLOCK COOLING FAN

Fig.4

UNIT BASE

OPTICAL BLOCK

LAMP COVER SW BRACKET

LAMP COVER SW PWB

(No.YA410)1-19

3.2 MEMORY IC REPLACEMENT

SERVICE MENU

1. ADJUST

2. SELF CHECK

3. I2C STOP

S001 R DRIVE 110 NTSC3 FULL STD LOW

• This model uses the memory IC.

• This memory IC stores data for proper operation of the video and drive circuits.

• When replacing, be sure to use an IC containing this (initial value) data.

3.2.1 MEMORY IC TABLE

Simbol Number of pins Mounting PWB Main content of data

IC3753

IC7201

IC7602

8-pin DRIVE PWB Adjustment and setting data (GAMMA, SHADING, etc.) of

(DRIVE CPU) are memorized.

IC3701

48-pin DIGITAL PWB Progaram(Video process) of IC6001(System CPU) is memorized.

8-pin DIGITAL PWB Setting value of IC7601(MAIN CPU) is memorized.

3.2.2 MEMORY IC REPLACEMENT PROCEDURE

1. Power off

Switch off the power and disconnect the power plug from the AC outlet.

2. Replace the memory IC

Be sure to use the memory IC written with the initial setting values.

3. Power on

Connect the power plug to the AC outlet and switch on the power.

4. Receiving channel setting

Refer to the OPERATING INSTRUCTIONS and set the receive channels (Channels Preset) as described.

5. User setting

Check the user setting items according to the given in page later. Where these do not agree, refer to the OPERATING INSTRUCTIONS and set the items as described.

6. SERVICE MODE setting

Verify what to set in the SERVICE MODE, and set whatever is necessary (Fig.1). Refer to the SERVICE ADJUSTMENT for setting.

3.2.3 SERVICE MODE SETTING

SERVICE MODE SCREEN

SERVICE MENU SCREEN

SERVICE MENU

1. ADJUST

2. SELF CHECK

3. I2C STOP

ADJUSTMENT MODE SCREEN

S001 R DRIVE 110 NTSC3 FULL STD LOW

SETTING ITEM

Setting items Settings Item No.

Video system setting Adjust S001 - S009

Audio system setting Adjust T001 - T003

Main CPU system setting Fixed M001 - M224

Drive system setting Fixed F001 - F002

(NOT USED) Fixed D001

(NOT USED) Fixed Z001

1-20 (No.YA410)

Fig.1

3.2.4 SETTINGS OF FACTORY SHIPMENT

3.2.4.1 BUTTON OPERATION 3.2.4.2 REMOTE CONTROL DIRECT OPERATION

Setting item Setting position

POWER Off CHANNEL CABLE-02 VOLUME 10 INPUT TV

INPUT TV CHANNEL CABLE-02 VOLUME 10 MUTING OFF DISPLAY OFF ASPECT NTSC, SD PANORAMA

SLEEP TIMER OFF THEATER PRO OFF NATURAL CINEMA AUTO C.C. OFF MTS STEREO TWIN

SOURCE

SOUND A.H.S.+ OFF

VIDEO STATUS DYNAMIC

Setting item Setting position

ATSC(525i, 525p) PANORAMA ZOOM

ATSC(750p, 1125i), HD, 1125p

LEFT SIDE CABLE-02

RIGHT SIDE INPUT-1

VOICE ENHANCEMENT

SMART SOUND OFF

MaxxBass OFF

FULL

PC REGULAR

OFF

3.2.4.3 REMOTE CONTROL MENU OPERATION

 PICTURE ADJUST

Customers can adjust the picture setting of menu screen as their own like but the picture standard value during factory shipment is as below.

[NTSC MODE] [HD MODE]

Setting item

TINT -02 00 00 00 COLOR +08 00 00 00 PICTURE 00 00 -10 00 BRIGHT 00 00 00 00 DETAIL +06 00 00 00 IRIS +10 00 00 -04 COLOR TEMPERATURE COLOR MANAGEMENT DYNAMIC GAMMA ON ON ON ON ADVANCED SMART PICTURE DIGITAL VNR AUTO AUTO AUTO AUTO MPEG NR OFF OFF OFF OFF

DYNAMIC

HIGH LOW HIGH HIGH

OFFONONON

STANDARD

ON ON ON ON

GAME

THEATER

Setting item

TINT -02 00 00 00 COLOR +08 00 00 00 PICTURE +03 00 -10 00 BRIGHT -05 00 00 00 DETAIL +12 00 00 00 IRIS +10 00 00 -04 COLOR TEMPERATURE COLOR MANAGEMENT DYNAMIC GAMMA ON ON ON ON ADVANCED SMART PICTURE DIGITAL VNR AUTO AUTO AUTO AUTO MPEG NR OFF OFF OFF OFF

DYNAMIC

HIGH LOW HIGH LOW

OFFONONON

STANDARD

ON ON ON ON

GAME

THEATER

(No.YA410)1-21

 SOUND ADJUST

 INITIAL SETUP

Setting item Setting position

BASS 00 TREBLE 00 BALANCE 00 TURN ON VOLUME CURRENT VOLUME LIMIT 50

 CLOCK / TIMERS

Setting item Setting position

ON / OFF TIMER NO

Setting item Setting position

VIDEO-1 MONITOR OUT OFF TV SPEAKER ON AUDIO OUT FIX DIGITAL-IN AUTO DIGITAL-IN1 AUDIO AUTO CENTER CH INPUT OFF NOISE MUTING ON FRONT PANEL LOCK OFF V1 SMART INPUT OFF VIDEO INPUT LABEL All blank POSITION ADJUSTMENT Center POWER INDICATOR HIGH LANGUAGE ENG. CLOSED CAPTION OFF AUTO SHUT OFF OFF XDS ID ON AUTO TUNER SETUP Unnecessary to set V-CHIP OFF

1-22 (No.YA410)

3.3 REPLACEMENT OF CHIP COMPONENT

3.3.1 CAUTIONS

(1) Avoid heating for more than 3 seconds. (2) Do not rub the electrodes and the resist parts of the pattern. (3) When removing a chip part, melt the solder adequately. (4) Do not reuse a chip part after removing it.

3.3.2 SOLDERING IRON

(1) Use a high insulation soldering iron with a thin pointed end of it. (2) A 30w soldering iron is recommended for easily removing parts.

3.3.3 REPLACEMENT STEPS

1. How to remove Chip parts

2. How to install Chip parts

[Resistors, capacitors, etc.]

(1) As shown in the figure, push the part with tweezers and

alternately melt the solder at each end.

(2) Shift with the tweezers and remove the chip part.

[Transistors, diodes, variable resistors, etc.]

(1) Apply extra solder to each lead.

SOLDER

[Resistors, capacitors, etc.]

(1) Apply solder to the pattern as indicated in the figure.

(2) Grasp the chip part with tweezers and place it on the

solder. Then heat and melt the solder at both ends of the chip part.

[Transistors, diodes, variable resistors, etc.]

(1) Apply solder to the pattern as indicated in the figure. (2) Grasp the chip part with tweezers and place it on the

solder.

(3) First solder lead A as indicated in the figure.

(2) As shown in the figure, push the part with tweezers and

alternately melt the solder at each lead. Shift and remove the chip part.

NOTE :

After removing the part, remove remaining solder from the pattern.

(4) Then solder leads B and C.

(No.YA410)1-23

SECTION 4

ADJUSTMENT

4.1 ADJUSTMENT PREPARATION

(1) There are 2 ways of adjusting this TV : One is with the

REMOTE CONTROL UNIT and the other is the conventional method using adjustment parts and components.

(2) The adjustment using the REMOTE CONTROL UNIT is

made on the basis of the initial setting values. The setting values which adjust the screen to the optimum condition can be different from the initial setting values.

(3) Make sure that connection is correctly made AC to AC

power source.

(4) Turn on the power of the TV and measuring instruments for

warning up for at least 30 minutes before starting adjustments.

(5) If the receive or input signal is not specified, use the most

appropriate signal for adjustment.

(6) Never touch the parts (such as variable resistors,

transformers and condensers) not shown in the adjustment items of this service adjustment.

4.2 PRESET SETTING BEFORE ADJUSTMENTS

Unless otherwise specified in the adjustment items, preset the following functions with the REMOTE CONTROL UNIT.

Setting item Settings

VIDEO STATUS STANDARD

Picture adjustments 00

COLOR TEMPERATURE LOW

COLOR MANAGEMENT ON

DYNAMIC GAMMA ON

ADVANCED SMART PICTURE OFF

DIGITAL VNR OFF

MPEG NR OFF

NATURAL CINEMA AUTO

Sound adjustments 00

A.H.S.+ OFF

MaxxBass OFF

SMART SOUND OFF

ASPECT FULL

4.3 MEASURING INSTRUMENT AND FIXTURES

• Oscilloscope

• Signal generator (Pattern generator) [NTSC / 525i / 525p / 750p / 1125i]

• TV audio multiplex signal generator

• Remote control unit

4.4 ADJUSTMENT ITEMS

 FOCUS

• LENS FOCUS adjustment

 DRIVE CIRCUIT

• DRIVE CONVERGENCE adjustment

• DRIVE CENTER POSITION adjustment

 VIDEO CIRCUIT

• WHITE BALANCE (HIGHLIGHT) adjustment

 MTS CIRCUIT

• MTS INPUT LEVEL adjustment

• MTS SEPARATION adjustment

1-24 (No.YA410)

4.5 BASIC OPERATION OF SERVICE MODE

SERVICE MENU

1. ADJUST

2. SELF CHECK

3. I2C STOP

S001 R DRIVE 110 NTSC3 FULL STD LOW

4.5.1 HOW TO ENTER THE SERVICE MODE

(1) Set to "0 minutes" using the [SLEEP TIMER] key. (2) While "0 minutes" is displayed, press the [VIDEO

STATUS] key and [DISPLAY] key simultaneously, then enter the SERVICE MODE (Fig.1)

SERVICE MENU SCREEN

SERVICE MENU

1. ADJUST

2. SELF CHECK

3. I2C STOP

Fig.1

NOTE:

• Before entering the SERVICE MODE, confirm that the setting of TV/CATV switch of the REMOTE CONTROL UNIT is at the "TV" side and the setting of VCR/DVD switch is at the "VCR" side. If the switches have not been properly set, you cannot enter the SERVICE MODE.

• When a number key other than the [1] or [9] keys is pressed in the SERVICE MENU SCREEN, the other relevant screen may be displayed. This is not used in the adjustment procedure. Press the

[MENU] key to return to the SERVICE MENU SCREEN.

4.5.2 HOW TO EXIT THE SERVICE MODE Press the [ BACK ] key to exit the Service mode.

4.5.3 SERVICE MODE SELECT KEY LOCATION

VCR/DVD switch

TV/CATV switch

VIDEO STATUS

MUTING

VOLUME -

POWER

SLEEP TIMER DISPLAY

NUMBER

CHANNEL +

VOLUME +

BACK

CHANNEL -

4.5.4 ADJUSTMENT MODE

This mode is used to adjust the VIDEO CIRCUIT and the MTS CIRCUIT.

4.5.4.1 HOW TO ENTER THE ADJUSTMENT MODE

When the SERVICE MENU SCREEN of SERVICE MODE is displayed, press [1] key to enter the ADJUSTMENT MODE

(Fig.2).

4.5.4.2 DESCRIPTION OF STATUS DISPLAY OF ADJUSTMENT MODE

ADJUSTMENT MODE

SETTING VALUE (DATA)SETTING ITEM No. SETTING ITEM

S001 R DRIVE 110 NTSC3 FULL STD LOW

SIGNAL SYSTEM SCREEN MODE VIDEO STATUS

Fig.2

(1) SIGNAL SYSTEM

The signal displayed on the screen is displayed.

NTSC3 : 525i (Composite / S-video input) 525I : 525i (Component input) 525P : 525p 1125I6 : 1125i 750P6 : 750p PCVGA : PC (VGA) PCXGA : PC (XGA) PCNG : PC (except VGA/XGA) H525I : HDMI 525i H525P : HDMI 525p H125I6 : HDMI 1125i H125P6 : HDMI 1125p H750P6 : HDMI 750p D525I : ATSC 525i D525P : ATSC 525p D125I6 : ATSC 1125i D750P : ATSC 750p

(2) SCREEN MODE

State of the SCREEN SIZE or MULTI PICTURE is displayed.

SINGLE SCREEN

FULL : FULL 1609 : CINEMA, CINEMA ZOOM PANO : PANORAMA, PANORAMA ZOOM REGU : REGULAR, SLIM

MULTI SCREEN

M2 : TWIN, FREEZE screen M12 : INDEX screen

WHITE BALANCE

(No.YA410)1-25

(3) VIDEO STATUS

STD : STANDARD DYN : DYNAMIC TH : THEATER GAME : GAME

4.5.5 RGB BOX PATTERN MODE

This mode is used to adjust the DRIVE CIRCUIT.

4.5.5.1 HOW TO ENTER THE RGB BOX PATTERN MODE

When the SERVICE MENU SCREEN of SERVICE MODE is displayed, press [9] key to enter the RGB BOX PATTERN

MODE (Fig3).

(4) WHITE BALANCE

HIGH : HIGH LOW : LOW

(5) SETTING ITEM NAME

Setting item name are displayed. The setting item numbers to be displayed are listed below.

Item No. Setting item

S001 - S009 Video system setting

T001 - T003 Audio system setting

M001 - M224 Main CPU system setting

F001 - F002 Drive system setting

D001 (NOT USED)

Z001 (NOT USED)

(6) SETTING ITEM NO.

Setting item numbers are displayed. For the setting item names to be displayed, refer to "Initial setting value of adjustment mode".

(7) SETTING VALUE (DATA)

The SETTING VALUE is displayed.

4.5.4.3 CHANGE AND MEMORY OF SETTING VALUE

SELECTION OF SETTING ITEM

• [CH+] / [CH-] key. Change the setting items up/ down.

S001... ↔ T001... ↔ M001... ↔ F001... ↔ D001... ↔ Z001...

• [SLEEP TIMER] key. Switches to the next items.

S001 → T001 → M001... → F001... → D001 → Z001

4.5.5.2 DESCRIPTION OF STATUS DISPLAY OF RGB BOX PATTERN MODE

RGB BOX PATTERN MODE

RGB

ADJUSTMENT COLOUR MODE

Fig.3

(1) RGB BOX PATTERN

The checkered pattern is displayed. White is a synthesis of RGB.

(2) ADJUSTMENT COLOR MODE

Presently selected ADJUSTMENT COLOR MODE is displayed.

SELECTION OF SETTING ITEM

• [CH+] / [CH-] key. Move the selected RGB BOX PATTERN up/ down pixel by pixel.

• [VOL+] / [VOL-] key. Move the selected RGB BOX PATTERN left/ right pixel by pixel.

CHANGE OF SETTING VALUE (DATA)

• [VOL+] / [VOL-] key. Change the setting values up/down.

MEMORY OF SETTING VALUE (DATA)

Changed setting value is memorized by pressing [MUTING] key.

1-26 (No.YA410)

• [SLEEP TIMER] key. Adjusts the data reset.

• [DISPLAY] key. Adjusts the selected COLOR BOX PATTERN.

R → B → RGB

• [BACK] key. Returns to the SERVICE MENU SCREEN from the RGB BOX PATTERN MODE.

MEMORY OF SETTING VALUE (DATA)

With the RGB BOX PATTERN MODE, the changed date is written in the MEMORY instantly.

4.6 INITIAL SETTING VALUES IN THE SERVICE MODE

• Perform fine-tuning based on the "initial values" using the remote control when in the Service mode.

• The "initial values" serve only as an indication rough standard and therefore the values with which optimal display can be achieved may be different from the default values. But, don't change the values that are not written in "ADJUSTMENT PROCEDURE". They are fixed values.

4.6.1 VIDEO SYSTEM SETTING

Item No. Item Variable range Setting value

S001 R DRIVE 000 - 255 110

S002 G DRIVE 000 - 255 138

S003 B DRIVE 000 - 255 127

S004 RESREV 000 - 255 000

S005 RESREV 000 - 255 002

S006 RESREV 000 - 255 002

S007 RESREV 000 - 255 002

S008 RESREV 000 - 255 002

S009 RESREV 000 - 255 002

4.6.2 AUDIO SYSTEM SETTING

Item No. Item Variable range Setting value

T001 INPLEVEL 000 - 015 007

T002 LOWSEPA 000 - 063 028

T003 HIGHSEPA 000 - 063 018

4.6.3 MAIN CPU SYSTEM SETTING (Fixed values)

Item No. Item Variable range Setting value

M001 1E00 00 - FF 00

M002 1E01 00 - FF 00

M003 1E02 00 - FF 0A

M004 1E03 00 - FF 20

M005 1E04 00 - FF 10

M006 1E05 00 - FF 00

M007 1E06 00 - FF 00

M008 1E07 00 - FF 00

M009 1E08 00 - FF 00

M010 1E09 00 - FF 00

M011 1E0A 00 - FF 01

M012 1E0B 00 - FF 00

M013 1E0C 00 - FF 01

M014 1E0D 00 - FF 00

M015 1E0E 00 - FF 00

M016 1E0F 00 - FF 00

M017 1E10 00 - FF 01

M018 1E11 00 - FF 00

M019 1E12 00 - FF 00

M020 1E13 00 - FF 01

M021 1E14 00 - FF 01

M022 1E15 00 - FF 00

M023 1E16 00 - FF 00

M024 1E17 00 - FF 00

M025 1E18 00 - FF 00

M026 1E19 00 - FF 00

M027 1E1A 00 - FF 00

Item No. Item Variable range Setting value

M028 1E1B 00 - FF 00

M029 1E1C 00 - FF 00

M030 1E1D 00 - FF 00

M031 1E1E 00 - FF 00

M032 1E1F 00 - FF 00

M033 1E20 00 - FF 00

M034 1E21 00 - FF 00

M035 1E22 00 - FF 00

M036 1E23 00 - FF 00

M037 1E24 00 - FF 00

M038 1E25 00 - FF 00

M039 1E26 00 - FF 00

M040 1E27 00 - FF 00

M041 1E28 00 - FF 00

M042 1E29 00 - FF 00

M043 1E2A 00 - FF 00

M044 1E2B 00 - FF 00

M045 1E2C 00 - FF 00

M046 1E2D 00 - FF 00

M047 1E2E 00 - FF 00

M048 1E2F 00 - FF 00

M049 1E30 00 - FF 00

M050 1E31 00 - FF 00

M051 1E32 00 - FF 00

M052 1E33 00 - FF 00

M053 1E34 00 - FF 00

M054 1E35 00 - FF 00

M055 1E36 00 - FF 02

M056 1E37 00 - FF 00

M057 1E38 00 - FF 01

M058 1E39 00 - FF 02

M059 1E3A 00 - FF 10

M060 1E3B 00 - FF 83

M061 1E3C 00 - FF 00

M062 1E3D 00 - FF 00

M063 1E3E 00 - FF 00

M064 1E3F 00 - FF 00

M065 1E40 00 - FF 00

M066 1E41 00 - FF 00

M067 1E42 00 - FF 00

M068 1E43 00 - FF 03

M069 1E44 00 - FF 03

M070 1E45 00 - FF 03

M071 1E46 00 - FF 3F

M072 1E47 00 - FF 01

(No.YA410)1-27

Item No. Item Variable range Setting value

M073 1E48 00 - FF 00

M074 1E49 00 - FF 00

M075 1E4A 00 - FF 00

M076 1E4B 00 - FF 00

M077 1E4C 00 - FF 00

M078 1E4D 00 - FF 00

M079 1E4E 00 - FF 00

M080 1E4F 00 - FF 00

M081 1E50 00 - FF 00

M082 1E51 00 - FF 00

M083 1E52 00 - FF 00

M084 1E53 00 - FF 00

M085 1E54 00 - FF 00

M086 1E55 00 - FF 00

M087 1E56 00 - FF 00

M088 1E57 00 - FF 00

M089 1E58 00 - FF 00

M090 1E59 00 - FF 00

M091 1E5A 00 - FF 00

M092 1E5B 00 - FF 00

M093 1E5C 00 - FF 00

M094 1E5D 00 - FF 00

M095 1E5E 00 - FF 00

M096 1E5F 00 - FF 00

M097 1E60 00 - FF 00

M098 1E61 00 - FF 00

M099 1E62 00 - FF 00

M100 1E63 00 - FF 00

M101 1E64 00 - FF 00

M102 1E65 00 - FF 00

M103 1E66 00 - FF 00

M104 1E67 00 - FF 00

M105 1E68 00 - FF 04

M106 1E69 00 - FF 03

M107 1E6A 00 - FF 02

M108 1E6B 00 - FF 00

M109 1E6C 00 - FF 00

M110 1E6D 00 - FF 00

M111 1E6E 00 - FF 00

M112 1E6F 00 - FF 00

M113 1E70 00 - FF 00

M114 1E71 00 - FF 00

M115 1E72 00 - FF 00

M116 1E73 00 - FF 00

M117 1E74 00 - FF 00

M118 1E75 00 - FF 00

M119 1E76 00 - FF 00

M120 1E77 00 - FF 00

M121 1E78 00 - FF 03

M122 1E79 00 - FF 00

Item No. Item Variable range Setting value

M123 1E7A 00 - FF 00

M124 1E7B 00 - FF 00

M125 1E7C 00 - FF 00

M126 1E7D 00 - FF 00

M127 1E7E 00 - FF 01

M128 1E7F 00 - FF 00

M129 1E80 00 - FF 01

M130 1E81 00 - FF 00

M131 1E82 00 - FF 01

M132 1E83 00 - FF 00

M133 1E84 00 - FF 00

M134 1E85 00 - FF 00

M135 1E86 00 - FF 00

M136 1E87 00 - FF 00

M137 1E88 00 - FF 00

M138 1E89 00 - FF 00

M139 1E8A 00 - FF 00

M140 1E8B 00 - FF 00

M141 1E8C 00 - FF 00

M142 1E8D 00 - FF 00

M143 1E8E 00 - FF 00

M144 1E8F 00 - FF 00

M145 1E90 00 - FF 00

M146 1E91 00 - FF 00

M147 1E92 00 - FF 00

M148 1E93 00 - FF 00

M149 1E94 00 - FF 00

M150 1E95 00 - FF 00

M151 1E96 00 - FF 00

M152 1E97 00 - FF 00

M153 1E98 00 - FF 00

M154 1E99 00 - FF 00

M155 1E9A 00 - FF 01

M156 1E9B 00 - FF 00

M157 1E9C 00 - FF 03

M158 1E9D 00 - FF 00

M159 1E9E 00 - FF 00

M160 1E9F 00 - FF 00

M161 1EA0 00 - FF 00

M162 1EA1 00 - FF 00

M163 1EA2 00 - FF 01

M164 1EA3 00 - FF 00

M165 1EA4 00 - FF 00

M166 1EA5 00 - FF 00

M167 1EA6 00 - FF 00

M168 1EA7 00 - FF 00

M169 1EA8 00 - FF 00

M170 1EA9 00 - FF 00

M171 1EAA 00 - FF 00

M172 1EAB 00 - FF 00

1-28 (No.YA410)

Item No. Item Variable range Setting value

M173 1EAC 00 - FF 0A

M174 1EAD 00 - FF 00

M175 1EAE 00 - FF 00

M176 1EAF 00 - FF 00

M177 1EB0 00 - FF 0A

M178 1EB1 00 - FF 00

M179 1EB2 00 - FF 01

M180 1EB3 00 - FF 00

M181 1EB4 00 - FF 00

M182 1EB5 00 - FF 00

M183 1EB6 00 - FF 00

M184 1EB7 00 - FF 00

M185 1EB8 00 - FF 00

M186 1EB9 00 - FF 00

M187 1EBA 00 - FF 00

M188 1EBB 00 - FF 00

M189 1EBC 00 - FF 00

M190 1EBD 00 - FF 00

M191 1EBE 00 - FF 00

M192 1EBF 00 - FF 00

M193 1EC0 00 - FF 00

M194 1EC1 00 - FF 00

M195 1EC2 00 - FF 01

M196 1EC3 00 - FF 00

M197 1EC4 00 - FF 00

M198 1EC5 00 - FF 00

M199 1EC6 00 - FF 00

M200 1EC7 00 - FF 00

M201 1EC8 00 - FF 00

M202 1EC9 00 - FF 00

M203 1ECA 00 - FF 00

M204 1ECB 00 - FF 00

Item No. Item Variable range Setting value

M205 1ECC 00 - FF 02

M206 1ECD 00 - FF 00

M207 1ECE 00 - FF 00

M208 1ECF 00 - FF 00

M209 1ED0 00 - FF 10

M210 1ED1 00 - FF 00

M211 1ED2 00 - FF 00

M212 1ED3 00 - FF 00

M213 1ED4 00 - FF 00

M214 1ED5 00 - FF 00

M215 1ED6 00 - FF 00

M216 1ED7 00 - FF 00

M217 1ED8 00 - FF 00

M218 1ED9 00 - FF 00

M219 1EDA 00 - FF 00

M220 1EDB 00 - FF 00

M221 1EDC 00 - FF 00

M222 1EDD 00 - FF 00

M223 1EDE 00 - FF 00

M224 1EDF 00 - FF 00

4.6.4 DRIVE SYSTEM SETTING (Fixed values)

Item No. Item Variable range Setting value

F001 DD 000 - 001 000

F002 RAM REF 000 - 001 000

4.6.5 NOT USED (Fixed values)

Item No. Item Variable range Setting value

D001 RESREV 000 - 255 002

4.6.6 NOT USED (Fixed values)

Item No. Item Variable range Setting value

Z001 RESREV 000 - 255 002

4.7 ADJUSTMENT PROCEDURE

4.7.1 FOCUS

Item

LENS FOCUS

Measuring instrument

Hexagon wrench (2.5mm)

Test point Adjustment part Description

FOCUS ring

Focus lock screw

FOCUS ring [PROJECTION LENS]

Projection lens

(1) Remove the SPEAKER GRILL and CENTER

COVER. (2) Display the MENU screen. (3) Loosen the focus lock screw. (4) Adjust the FOCUS ring so that the center

screen may become the best focus. (5) Fix the focus lock screw by using the Hexagon

wrench.

• On this occasion, hold the FOCUS ring with your left hand.

(6) Confirm the whole focus of the best screen. (7) Install the CENTER COVER and SPEAKER

GRILL.

(No.YA410)1-29

4.7.2 DRIVE CIRCUIT

Item

DRIVE CONVERGENCE

DRIVE CENTER POSITION

Measuring

instrument

Remote control unit

Signal generator

(B=B")

(A=A")

BB"

RGB

Adjustment color

Horizontal RGB box patternVertical RGB box pattern

Adjustment color

Test point Adjustment part Description

[9.RGB BOX PATTERN] (1) Set to "0 minutes" using the [SLEEP TIMER]

key.

(2) Press the [VIDEO STATUS] key and

[DISPLAY] key simultaneously, to enter the SERVICE MODE.

(3) Press the [9] key, to select "RGB BOX

PATTERN MODE" from the SERVICE MODE.

(4) Set the adjustment color mode to "R" to set the

red color adjustment mode.

(5) At Horizontal RGB box pattern, adjust the top

edge position as same or less than 0.5 pixel hight as green.

(6) At Vertical RGB box pattern, adjust the right

edge position as same or less than 0.5 pixel hight as green.

(7) Set the adjustment color mode to "B" to set the

blue color adjustment mode.

(8) At Horizontal RGB box pattern, adjust the top

edge position as same or less than 0.5 pixel hight as green.

(9) At Vertical RGB box pattern, adjust the right

edge position as same or less than 0.5 pixel hight as green.

(10) Check to see that the cross pattern is white. If

the cross pattern is not white, repeat the step

4. to 9. as abobe.

NOTE:

• Green is fixed. (It can not be removed.)

• With this adjustment mode, the changed data is written in the MEMORY instantly.

[9.RGB BOX PATTERN] (1) Receive a center cross (or crosshatch) pattern.

(2) Set to "0 minutes" using the [SLEEP TIMER]

key.

(3) Press the [VIDEO STATUS] key and

[DISPLAY] key simultaneously, to enter the SERVICE MODE.

(4) Press the [9] key, to select "RGB BOX

PATTERN MODE" from the SERVICE MODE.

(5) Set the adjustment color mode to "RGB" to set

the display position adjustment mode.

(6) Adjust the top and the bottom width to make A

and A" even.

(7) Adjust the left and the right width to make B

and B" even.

NOTE:

• With this adjustment mode, the changed data is written in the MEMORY instantly.

1-30 (No.YA410)

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