SERVICE MANUAL

COPYRIGHT © 2007 Victor Company of Japan, Limited No.YA559<Rev.001>2007/12

WIDE LCD PANEL TELEVISIONYA559<Rev.001>200712SERVICE MANUAL

LT-32DY8ZG, LT-32DY8ZJ

COPYRIGHT © 2007 Victor Company of Japan, Limited

TABLE OF CONTENTS1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-73 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-114 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-155 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

1-2 (No.YA559<Rev.001>)

SPECIFICATION

Design & specifications are subject to change without notice.

ItemsContents

LT-32DY8ZG LT-32DY8ZJDimensions ( W × H × D ) 80.3cm × 60.5cm × 20.0cm [Included stand]

80.3cm × 55.8cm × 12.2cm [TV only]

Mass 14.9kg [Included stand]13.4kg [TV only]

Power Input AC220 - 240V, 50Hz

Power Consumption 180W (Standby: 0.9W)

TV RF System AnalogDigital

CCIR (B/G, I, D/K, L)DVB-T

Colour System PAL, SECAM, NTSC 3.58/4.43 [EXT only]

Stereo System NICAM (B/G, I, D/K, L), A2 (B/G, D/K)

Receiving Frequency Analog

DigitalCATV

VHF: 46.25 MHz - 470 MHzUHF: 470 MHz - 862.25 MHzUHF: 474 MHz - 858 MHzS1 - S20 / S21 - S41

IntermediateFrequency

VIFSIF

38.9 MHz (B/G, I, D/K, L)33.4 MHz (5.5 MHz: B/G)32.9 MHz (6.0 MHz: I)32.4 MHz (6.5 MHz: D/K, L)

Colour SubCarrier Frequency

PALSECAM

NTSC

4.43 MHz4.40625 MHz / 4.25MHz3.58 MHz / 4.43 MHz

Teletext System Analog TOP, FLOF (Fastext level 2.5), WST(World Standard system)

Digital Digital Teletext (VBI insertion) Digital Teletext (Mheg5)

LCD panel 32V-inch wide aspect (16:9)

Screen Size Diagonal : 80.2cm (H:69.8cm × V : 39.2cm)

Display Pixels Horizontal : 1366 dots × Vertical : 768 dots (W-VGA)

Audio Power Output 8W + 8W(10% THD)

Speaker 4.2cm × 16cm oval type × 2

Aerial terminal (VHF/UHF) EU-type connector, 75Ω unbalanced, coaxial

EXT-1 / EXT-2 (Input / Output) 21-pin Euro connector (SCART socket ) × 2

EXT-3(Input) Component Video625p / 525p / 625i / 525i

/ 750p / 1125i

RCA pin jack × 3Y : 1V (p-p), Positive (Negative sync provided), 75 ΩCb/Cr : 0.7V(p-p), 75 Ω

Audio 500mV(rms) (-4dBs), high impedance, RCA pin jack × 2

EXT-4 (Input) Video 1V (p-p), Positive (Negative sync provided), 75 Ω, RCA pin jack × 1

Audio 500mV (rms), High impedance, RCA pin jack × 2

EXT-5 / EXT-6 (Input / Output) HDMI 19pin connector × 2

Audio Output Analog 500mV (rms), Low impedance, RCA pin jack × 2

Digital AC3 compatible, RCA pin jack × 1

Headphone 3.5mm stereo mini jack × 1

Card Slot CAM(Conditional Access Module) × 1

Remote Control Unit RM-C1899S (AA/R6 dry cell battery × 2)

(No.YA559<Rev.001>)1-3

SECTION 1PRECAUTION

1.1 SAFETY PRECAUTIONS [EXCEPT FOR UK](1) The design of this product contains special hardware,

many circuits and components specially for safetypurposes. For continued protection, no changes should bemade to the original design unless authorized in writing bythe manufacturer. Replacement parts must be identical tothose used in the original circuits. Service should beperformed by qualified personnel only.

(2) Alterations of the design or circuitry of the products shouldnot be made. Any design alterations or additions will voidthe manufacturer's warranty and will further relieve themanufacturer of responsibility for personal injury orproperty damage resulting therefrom.

(3) Many electrical and mechanical parts in the products havespecial safety-related characteristics. Thesecharacteristics are often not evident from visual inspectionnor can the protection afforded by them necessarily beobtained by using replacement components rated forhigher voltage, wattage, etc. Replacement parts whichhave these special safety characteristics are identified inthe parts list of Service manual. Electrical componentshaving such features are identified by shading on theschematics and by ( ) on the parts list in Servicemanual. The use of a substitute replacement which doesnot have the same safety characteristics as therecommended replacement part shown in the parts list ofService manual may cause shock, fire, or other hazards.

(4) Don't short between the LIVE side ground andISOLATED (NEUTRAL) side ground or EARTH sideground when repairing. Some model's power circuit is partly different in the GND.The difference of the GND is shown by the LIVE : ( ) sideGND, the ISOLATED (NEUTRAL) : ( ) side GND andEARTH : ( ) side GND. Don't short between the LIVE side GND and ISOLATED(NEUTRAL) side GND or EARTH side GND and nevermeasure the LIVE side GND and ISOLATED (NEUTRAL)side GND or EARTH side GND at the same time with ameasuring apparatus (oscilloscope etc.). If above note willnot 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 leaddress in the high voltage circuit area. Where a short circuithas occurred, those components that indicate evidence ofoverheating should be replaced. Always use themanufacturer's replacement components.

(6) Isolation Check (Safety for Electrical Shock Hazard) After re-assembling the product, always perform anisolation 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 operatewithout danger of electrical shock.

a) Dielectric Strength Test The isolation between the AC primary circuit and all metalparts exposed to the user, particularly any exposed metalpart having a return path to the chassis should withstand avoltage of 3000V AC (r.m.s.) for a period of one second. (.. . . Withstand a voltage of 1100V AC (r.m.s.) to anappliance rated up to 120V, and 3000V AC (r.m.s.) to anappliance rated 200V or more, for a period of one second.) This method of test requires a test equipment not generallyfound in the service trade.

b) Leakage Current Check Plug the AC line cord directly into the AC outlet (do not usea line isolation transformer during this check.). Using a"Leakage Current Tester", measure the leakage currentfrom each exposed metal part of the cabinet, particularlyany exposed metal part having a return path to the chassis,to a known good earth ground (water pipe, etc.). Anyleakage 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 notuse a line isolation transformer during this check.). Usean AC voltmeter having 1000Ω per volt or moresensitivity in the following manner. Connect a 1500Ω10W resistor paralleled by a 0.15µF AC-type capacitorbetween an exposed metal part and a known good earthground (water pipe, etc.). Measure the AC voltageacross the resistor with the AC voltmeter. Move theresistor connection to each exposed metal part,particularly any exposed metal part having a return pathto the chassis, and measure the AC voltage across theresistor. Now, reverse the plug in the AC outlet andrepeat each measurement. Any voltage measured mustnot exceed 0.75V AC (r.m.s.). This corresponds to0.5mA 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)

PLACE THIS PROBE

ON EACH EXPOSED

METAL PART1500 10W

0.15 F AC-TYPE

GOOD EARTH GROUND

1-4 (No.YA559<Rev.001>)

1.2 SAFETY PRECAUTIONS [FOR UK](1) The design of this product contains special hardware and 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 personnelonly.

(2) Alterations of the design or circuitry of the product should not be made. Any design alterations or additions will void themanufacturer's warranty and will further relieve the manufacturer of responsibility for personal injury or property damageresulting therefrom.

(3) Many electrical and mechanical parts in the product have special safety-related characteristics. These characteristics are oftennot evident from visual inspection nor can the protection afforded by them necessary be obtained by using replacementcomponents rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics areidentified in the Parts List of Service Manual. Electrical components having such features are identified by shading on theschematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have thesame safety characteristics as the recommended replacement part shown in the Parts List of Service Manual may cause shock,fire, or other hazards.

(4) The leads in the products are routed and dressed with ties, clamps, tubing’s, barriers and the like to be separated from live parts,high temperature parts, moving parts and / or sharp edges for the prevention of electric shock and fire hazard. When service isrequired, the original lead routing and dress should be observed, and it should be confirmed that they have been returned tonormal, after re-assembling.

WARNING(1) The equipment has been designed and manufactured to meet international safety standards.(2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained.(3) Repairs must be made in accordance with the relevant safety standards.(4) It is essential that safety critical components are replaced by approved parts.(5) If mains voltage selector is provided, check setting for local voltage.

(No.YA559<Rev.001>)1-5

1.3 INSTALLATION1.3.1 HEAT DISSIPATIONIf the heat dissipation vent behind this unit is blocked, coolingefficiency may deteriorate and temperature inside the unit willrise. The temperature sensor that protects the unit will beactivated when internal temperature exceeds the pre-determinedlevel and power will be turned off automatically.Therefore,please make sure pay attention not to block the heat dissipationvent as well as the ventilation outlet behind the unit and ensurethat there is room for ventilation around it.

1.3.2 INSTALLATION REQUIREMENTSEnsure that the minimal distance is maintained, as specifiedbelow, between the unit with and the surrounding walls, as wellas the floor etc.Install the unit on stable flooring or stands.Takeprecautionary measures to prevent the unit from tipping in orderto protect against accidents and earthquakes.

1.3.3 NOTES ON HANDLING(1) WHEN TAKING UNIT OUT OF A PACKING CASE

When taking the unit out of a packing case, do not graspthe upper part of the unit. If you take the unit out whilegrasping the upper part, the LCD PANEL may be damagedbecause of a pressure. Instead of grasping the upper part,put your hands on the lower backside or sides of the unit.

(2) AS FOR PRESSING OR TOUCHING A SPEAKERBe careful not to press the opening of the speaker in thelower part of the unit and around them since the decorativesheet on the surface of the openings may be deformed.

Ventilationhole

*Diagram differs from actual appearance.

100 mm

100 mm

100 mm

100 mm

50 mm

1-6 (No.YA559<Rev.001>)

1.4 HANDLING LCD PANEL1.4.1 PRECAUTIONS FOR TRANSPORTATIONWhen transporting the unit, pressure exerted on the internal LCDpanel due to improper handling (such as tossing and dropping)may cause damages even when the unit is carefully packed. Toprevent accidents from occurring during transportation, paycareful attention before delivery, such as through explaining thehandling instructions to transporters.Ensure that the following requirements are met duringtransportation, as the LCD panel of this unit is made of glass andtherefore fragile:

(1) USE A SPECIAL PACKING CASE FOR THE LCD PANELWhen transporting the LCD panel of the unit, use a specialpacking case (packing materials). A special packing caseis used when a LCD panel is supplied as a service sparepart.

(2) ATTACH PROTECTION SHEET TO THE FRONTSince the front (display part) of the panel is vulnerable,attach the protection sheet to the front of the LCD panelbefore transportation. Protection sheet is used when a LCDpanel is supplied as a service spare part.

(3) AVOID VIBRATIONS AND IMPACTSThe unit may be broken if it is toppled sideways even whenproperly packed. Continuous vibration may shift the gap ofthe panel, and the unit may not be able to display imagesproperly. Ensure that the unit is carried by at least 2persons and pay careful attention not to exert any vibrationor impact on it.

(4) DO NOT PLACE EQUIPMENT HORIZONTALLYEnsure that it is placed upright and not horizontally duringtransportation and storage as the LCD panel is veryvulnerable to lateral impacts and may break. Duringtransportation, ensure that the unit is loaded along thetraveling direction of the vehicle, and avoid stacking themon one another. For storage, ensure that they are stackedin 2 layers or less even when placed upright.

1.4.2 OPTICAL FILTER (ON THE FRONT OF THE LCD PANEL)(1) Avoid placing the unit under direct sunlight over a

prolonged period of time. This may cause the optical filterto deteriorate in quality and COLOUR.

(2) Clean the filter surface by wiping it softly and lightly with asoft and lightly fuzz cloth (such as outing flannel).

(3) Do not use solvents such as benzene or thinner to wipe thefilter surface. This may cause the filter to deteriorate inquality or the coating on the surface to come off. Whencleaning the filter, usually use the neutral detergent dilutedwith water. When cleaning the dirty filter, use water-dilutedethanol.

(4) Since the filter surface is fragile, do not scratch or hit it withhard materials. Be careful enough not to touch the frontsurface, especially when taking the unit out of the packingcase or during transportation.

1.4.3 PRECAUTIONS FOR REPLACEMENT OF EXTERIORPARTS

Take note of the following when replacing exterior parts (REARCOVER, FRONT PANEL, etc.):

(1) Do not exert pressure on the front of the LCD panel (filtersurface). It may cause irregular COLOUR.

(2) Pay careful attention not to scratch or stain the front of theLCD panel (filter surface) with hands.

(3) When replacing exterior parts, the front (LCD panel) shouldbe placed facing downward. Place a mat, etc. underneathto avoid causing scratches to the front (filter surface).

(No.YA559<Rev.001>)1-7

SECTION 2SPECIFIC SERVICE INSTRUCTIONS

2.1 FEATURES DVB-T (DIGITAL TERRESTRIAL BROADCASTING)

This TV can receive both Digital terrestrial broadcasting(DVB-T) and Analogue terrestrial broadcasting.

HDMI (High Definition Multimedia Interface)HDMI is the first industry supported, uncompressed,all digital audio/video interface. By connecting anHDMI compatible device, high definition pictures canbe displayed on your TV in their digital form.

3D COMB3D Comb is used to improve colour transitions and colour qualityof pictures.

T-V LINKWhen you have a T-V LINK compatible VCR connected to theEXT-2 Terminal on the TV,it is easier to set up the VCR and toview videos.

ZOOMThis function can change the screen size according to thepicture aspect ratio.

OFF TIMERThis function can set the TV to automatically turn off after a settime.

COLOUR SYSTEMIf the picture is not clear or no colour appears, change thecurrent colour system to another colour system.

2.2 MAIN DIFFERENCE LIST

2.3 21-PIN EURO CONNECTOR (SCART) : EXT-1 / EXT-2

(P-P= Peak to Peak, B-W= Blanking to white peak)

Item LT-32DY8ZG LT-32DU8ZJPOWER CORD EU type(2-pin) UK type(3-pin)

DIGITAL TUNER PWB VE-20325967 VE-20325968

Pin No. Signal designation Matching value EXT-1 EXT-21 AUDIO R output 500mV(rms) (Nominal),, Low impedance Used (TV OUT) Used (LINE OUT)2 AUDIO R input 500mV(rms) (Nominal),, High impedance Used (R1) Used (R2)3 AUDIO L output 500mV(rms) (Nominal),, Low impedance Used (TV OUT) Used (LINE OUT)4 AUDIO GND Used Used5 GND (B) Used Used6 AUDIO L input 500mV(rms) (Nominal),, High impedance Used (L1) Used (L2)7 B input 700mV(B-W), 75Ω Used Used8 FUNCTION SW

(SLOW SW)Low : 0V-3VHigh : 8V-12V, High impedance

Used Used

9 GND (G) Used Used10 SCL / T-V LINK Not used Used (TV-LINK)11 G input 700mV(B-W), 75Ω Used Used12 SDA Not used Not used13 GND (R) Used Used14 GND (YS) Used Not used15 R / C input R : 700mV(B-W), 75Ω

C : 300mV(P-P), 75ΩUsed (R) Used (C/R)

16 Ys input (FAST SW) Low : 0V-0.4V, High : 1V-3V, 75Ω Used Used17 GND (VIDEO output) Used Used18 GND (VIDEO input) Used Used19 VIDEO output 1V(P-P) (Negative sync), 75Ω Used (TV OUT) Used (LINE OUT)20 VIDEO / Y input 1V(P-P) (Negative sync), 75Ω Used (V1) Used (Y/V2)21 COMMON GND Used Used

20 18 16 14 12 10 8 6 4 2

21 19 17 15 13 11 9 7 5 3 1

[Pin assignment]

1-8 (No.YA559<Rev.001>)

2.4 TECHNICAL INFORMATION2.4.1 LCD PANELThis unit uses the flat type panel LCD (Liquid Crystal Display) panel that occupies as little space as possible, instead of theconventional CRT (Cathode Ray Tube), as a display unit.Since the unit has the two polarizing filter that are at right angles to each other, the unit adopts "normally black" mode, where lightdoes not pass through the polarizing filter and the screen is black when no voltage is applied to the liquid crystals.

2.4.1.1 SPECIFICATIONSThe following table shows the specifications of this unit.

2.4.1.2 PIXEL FAULTThere are three pixel faults - bright fault , dark fault and flicker fault - that are respectively defined as follows.

BRIGHT FAULTIn this pixel fault, a cell that should not light originally is lighting on and off.For checking this pixel fault, input ALL BLACK SCREEN and find out the cell that is lighting on and off.

DARK FAULTIn this pixel fault, a cell that should light originally is not lighting or lighting with the brightness twice as brighter as originally lighting.For checking this pixel fault, input 100% of each R/G/B colour and find out the cell that is not lighting.

FLICKER FAULTIn the pixel fault, a cell that should light originally or not light originally is flashing on and off.For checking this pixel fault, input ALL BLACK SCREEN signal or 100% of each RGB colour and find out the cell that is flashing onand off.

Item Specifications RemarksDisplayed colour 16777216 colours 256 colours for R, G, and B

Brightness 500cd/m2

Contrast ratio 2000 : 1

Response time 10ms

View angle Horizontally: 178°, Vertically: 178°

(No.YA559<Rev.001>)1-9

2.5 BASIC OPERATION OF SERVICE MODE2.5.1 HOW TO ENTER THE SERVICE MODE

(1) Press [MENU] key on the remote control unit to enter theMENU screen.

(2) Press [INFORMATION] key and [MUTING] key on the re-mote control unit simultaneously to enter the SERVICEMODE SCREEN.

2.5.2 HOW TO EXIT THE SERVICE MODEPress the [MENU] key to exit the Service mode.

2.5.3 CHANGE AND MEMORY OF SETTING VALUE SELECTION OF SETTING MENU & ITEM• [FUNCTION / ] key : Select the SETTING MENU & ITEM• [OK] key : Decide the SETTING MENU & ITEM

CHANGE OF SETTING VALUE (DATA)• [FUNCTION / ] key

MEMORY OF SETTING VALUE (DATA)The setting value will be stored automatically when release theREMOTE CONTROL UNIT keys.

2.5.4 SERVICE MODE SELECT KEY LOCATION

2.5.5 SERVICE MODE SETTING ITEMS

SERVICE MODE SCREEN

Factory Mode

Video SetupAudio SetupDRXOptions 1Options 2Options 3Service Scan/Tuning SetupExternal Source SettingPicture ModeReset TV-Set

PG 017MB22_JVC_IDTV_0.0.214IDTV_v1.5.0

[OK]

[FUNCTION ] [FUNCTION ]

[INFORMATION]

[MUTING]

[MENU]

Setting menu Setting itemsVideo Setup Panel Select

Picture Mute

Blue Screen

RSS

Lvds Mode

PIP AGC (dB)

Audio Setup BBE

AVL

Carrier Mute

Audio Delay Offset

Prescale

Dynamic Bass

Subwoofer

Audio Output

DRX PAL AGC

SECAM AGC

SIF Reference

Options 1 VCTP Version

Double Digit

Power-Up Mode

TV Open Mode

Select Languages

First APS

APS Volume

Burn-In Mode

HDMI WP

UHF Only for UK

Hdmi Db Card is

DTV SW

Options 2 Led Type

PC PIP PAP

BASIC PIP PAP

ADV PIP PAP

MB32

HP Volume Table for

Equalizer Setting for

DTV Tuner Type

3D Comb

Options 3 Dyn. Menu

Sort

Sleep Timer OSD

AVL in Menu

Pin8 Standby

1-10 (No.YA559<Rev.001>)

Service Scan/Tuning Setup Search for L/L'

Pref. Search Standard

Station Ident

ATS Delay Time (ms)

Color Kill Thr.

Agc Thr

Ovm Thr

Tuner Options

External Source Settings DTV

DVD

Ext2 S-Video

Ext3

Ext3 S-Video

FAV

BAV

S-Video

HDMI-1

HDMI-2

YPbPr

PC

Picture Mode Sources

Picture Mode

Colour Temp.

Contrast

Brightness

Sharpness

Colour

Backlight

R

G

B

Reset TV-Set Initialize NVM from ROM

Setting menu Setting items

(No.YA559<Rev.001>)1-11

SECTION 3DISASSEMBLY

3.1 DISASSEMBLY PROCEDURENOTE:

• 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.

3.1.1 REMOVING THE FOOT ASSEMBLY(1) Remove the 4 screws [A].(2) Remove the HINGE COVER.(3) Remove the FOOT ASSEMBLY.

3.1.2 REMOVING THE BACK COVER• Remove the FOOT ASSEMBLY.

(1) Remove the 17 screws [B].(2) Remove the 2 screws [C], 2 screws [D] and 2 screws [E].(3) Remove the BACK COVER.

3.1.3 REMOVING THE HANGER WALL METAL• Remove the FOOT ASSEMBLY.• Remove the BACK COVER.

(1) Remove the 2 screws [F].(2) Remove the HANGER WALL METAL.(3) Remove the opposite one by the same method.

3.1.4 REMOVING THE SIDE CONTROL PWB• Remove the FOOT ASSEMBLY.• Remove the BACK COVER.

(1) Remove the 2 screws [G].(2) Remove the FUNCTION BUTTON BRACKET.(3) Remove the 2 screws [H].(4) Remove the FUNCTION BUTTON with the SIDE CONTROL PWB.(5) Remove the 4 claws, which is fixing the SIDE CONTROL PWB.(6) Remove the SIDE CONTROL PWB.

3.1.5 REMOVING THE AV JACK PWB• Remove the FOOT ASSEMBLY.• Remove the BACK COVER.

(1) Remove the 2 screws [J].(2) Remove the AV JACK BRACKET.(3) Remove the 4 screws [K].(4) Remove the AV JACK PWB.

3.1.6 REMOVING THE POWER PWB• Remove the FOOT ASSEMBLY.• Remove the BACK COVER.

(1) Remove the 4 screws [L].(2) Remove the POWER PWB.

3.1.7 REMOVING THE MAIN PWB• Remove the FOOT ASSEMBLY.• Remove the BACK COVER.

(1) Remove the 2 screws [M] and 2 screws [N].(2) Remove the SOCKET COVER BRACKET.(3) Remove the 7 screws [P].(4) Remove the MAIN PWB.

3.1.8 REMOVING THE DIGITAL TUNER PWB• Remove the FOOT ASSEMBLY.• Remove the BACK COVER.

(1) Remove the 2 screws [Q].(2) Remove the COMMON INTERFACE BRACKET.(3) Remove the 3 screws [R].(4) Remove the DIGITAL TUNER PWB.

3.1.9 REMOVING THE SPEAKER • Remove the FOOT ASSEMBLY.• Remove the BACK COVER.

(1) Remove the 2 screws [S].(2) Remove the SPEAKER.(3) Remove the opposite SPEAKER by the same method.

3.1.10 REMOVING THE LED PWB• Remove the FOOT ASSEMBLY.• Remove the BACK COVER.

(1) Remove the 4 screws [T].(2) Remove the FRAME.(3) Remove the 2 screws [U].(4) Remove the LED PWB.

3.1.11 REMOVING THE LCD PANEL UNIT• Remove the FOOT ASSEMBLY.• Remove the BACK COVER.• Remove the FRAME.

(1) Slightly raise the both sides of the LCD PANEL UNIT by handand remove the LCD PANEL UNIT from the FRONT PANEL.

NOTE:• Pay special attention not to break or damage on the front of

the LCD PANEL.

1-12 (No.YA559<Rev.001>)

B

C

BACK COVER

G

P

H

N

HANGER WALLMETAL

FOOT ASSEMBLY

HINGECOVER

COMMONINTERFACE

COVER

SPEAKER

LED PWB

SIDECONTROL

PWB

FUNCTIONBUTTON

BRACKET

T

K

J

S

U

SOCKET COVERBRACKET

MAIN PWB

POWER PWB

LCD PANEL UNIT

FRONT PANEL

F

A

R

Q

AV JACKPWB

AV JACKBRACKET

FUNCTIONBUTTON

COMMONINTERFACEBRACKET

DIGITAL TUNERPWB

FRAME

L

T

D

E

MS

(No.YA559<Rev.001>)1-13

3.2 MEMORY IC REPLACEMENT• 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 SETTINGS OF FACTORY SHIPMENT3.2.1.1 BUTTON OPERATION 3.2.1.2 REMOTE CONTROL DIRECT OPERATION

3.2.1.3 REMOTE CONTROL MENU OPERATION(1) PICTURE

(2) SOUND

(3) FEATURE

(4) INSTALL

Setting item Setting positionPOWER Off

TV/AV TV

Setting item Setting positionZOOM Auto

Hyper Sound Off

Setting item Setting positionMode Bright

Contrast 63

Brightness 32

Sharpness 10

Colour 45

Colour Temp. Cool

Noise Reduction Minimum

Film Mode Off

3D Comb Off

Setting item Setting positionVolume 0

Bass 0

Treble 0

Balance 0

Sound Mode Stereo

Hyper sound Off

Setting item Setting positionSleep Timer Off

Child Lock Off

Language English

EXT-2 Output TV/DTV

Auto Aspect Panoramic

Blue Background Off

Setting item Setting positionColour System AUTO

Decoder(EXT-2) Off

VCR Off

1-14 (No.YA559<Rev.001>)

3.3 REPLACEMENT OF CHIP COMPONENT3.3.1 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

[Resistors, capacitors, etc.]

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

(2) As shown in the figure, push the part with tweezers andalternately melt the solder at each lead. Shift and removethe chip part.

NOTE :After removing the part, remove remaining solder from thepattern.

2. How to install Chip parts

[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 thesolder. Then heat and melt the solder at both ends of thechip 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.

(4) Then solder leads B and C.

SOLDER SOLDER

A

B

C

A

B

C

(No.YA559<Rev.001>)1-15

SECTION 4ADJUSTMENT

This service manual does not describe ADJUSTMENT.

SECTION 5TROUBLESHOOTING

This service manual does not describe TROUBLESHOOTING.

(No.YA559<Rev.001>)

VPTPrinted in Japan

Victor Company of Japan, LimitedDisplay category 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan