1. Manuals
  2. Brands
  3. JVC Manuals
  4. LCD TV
  5. LT-23E31BJG
  6. Service manual

JVC LT-23E31BJG Service Manual

Lcd flat television
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
SERVICE MANUAL
LCD FLAT TELEVISION
LT-23E31 BUG/BJG
LT-23E31 SUG/SJG
LT-23E75 BJG
LT-23E75 SJG
1. PRECAUTIONS .......................................................................................................................................... 1-3
2. SPECIFIC SERVICE INSTRUCTIONS .......................................................................................................... 1-5
3. DISASSEMBLY ........................................................................................................................................... 1-6
4. ADJUSTMENT .......................................................................................................................................... 1-22
5. TROUBLESHOOTING ............................................................................................................................... 1-23
COPYRIGHT © 2004 Victor Company of Japan, Limited

TABLE OF CONTENTS

No.YA032
2004/6

Advertisement

Table of Contents
loading

Related Manuals for JVC LT-23E31BJG

Summary of Contents for JVC LT-23E31BJG

  • Page 1: Table Of Contents

    SERVICE MANUAL LCD FLAT TELEVISION LT-23E31 BUG/BJG LT-23E31 SUG/SJG LT-23E75 BJG LT-23E75 SJG TABLE OF CONTENTS 1. PRECAUTIONS ............................1-3 2. SPECIFIC SERVICE INSTRUCTIONS ......................1-5 3. DISASSEMBLY ............................1-6 4. ADJUSTMENT ............................1-22 5. TROUBLESHOOTING ..........................1-23 COPYRIGHT © 2004 Victor Company of Japan, Limited No.YA032 2004/6...
  • Page 2 SPECIFICATION Contents Items LT-23E31 BUG LT-23E31 BJG LT-23E75 BJG LT-23E31 SUG LT-23E31 SJG LT-23E75 SJG Dimentions (W x H x D) 61.9cm x 43.6cm x 8.6cm (TV only) 61.9cm x 49.8cm x 22.7cm Mass 7.8kg (TV only) 9.8kg TV RF System B, G, I, D, K, L Colour System TV Mode PAL / SECAM...
  • Page 3 SECTION 1 PRECAUTION 1.1 SAFETY PRECAUTIONS (8) When service is required, observe the original lead dress. (1) The design of this product contains special hardware, Extra precaution should be given to assure correct lead many circuits and components specially for safety dress in the high voltage circuit area.

  • Page 4: 1.3 Precautions

    1.2 INSTALLATION 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. 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.

  • Page 5: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS 2.1 DESCRIPTION ABOUT LIQUID CRYSTAL PANEL 2.2.1 STRUCTURE OF LIGUID CRYSTAL PANEL The Liquid Crystal Panel of this model is TFT Panel. The Print circuit board that consist of TFT array and the print circuit board adopted stripe shaped image element alignment are used.

  • Page 6: Disassembly

    SECTION 3 DISASSEMBLY 3.1 DISASSEMBLY PROCEDURE CAUTION: • Disconnect the set and attached devices from the electrical outlet • To avoid ESD (Electro-Static Discharge), ground yourself by using a wrist grounding strap or by periodically touching unpainted metal on the set. 3.1.1 REMOVING THE CABLE COVER AND NECK COVER (1) Remove the CABLE COVER (L) by pulling the snap tabs.
  • Page 7 3.1.2 REMOVING THE DUMMY COVERS (If necessary) (1) Remove the DUMMY COVERS of TUNER module and AV JACK module by pulling the snap tabs Snap tab DUMMY COVER Snap tab DUMMY COVER TUNER COVER TUNER module AV JACK module (No. YA032) 1-7...
  • Page 8 3.1.3 PREPARING TO REMOVE THE MODULE UNITS (1) Remove the TUNER module cover by pulling snap tab. (2) Loosen 2 screws [A] of AV JACK module. 3.1.4 REMOVING THE BASE AND THE HANDLE (1) Remove 4 screws [B] and remove the BASE by pulling BASE. (2) Remove 4 screws [C] and remove the HANDLE.
  • Page 9 3.1.5 REMOVING THE MODULE UNITS (1) Remove the TUNER module by pulling carefully. (2) Remove the AV JACK module by pulling carefully. 3.1.6 REMOVING THE REAR COVER (1) Remove 4 screws [D] and remove the REAR COVER. NOTE: For the REAR COVER is attached tightly, it is easy to open from the corner of the REAR COVER. REAR COVER TUNER module AV JACK module...
  • Page 10 3.1.7 REMOVING THE D-SUB COVER AND THE AUDIO COVER (1) Remove a screw [E] and remove the D-SUB COVER. (2) Remove a screw [F] and remove the AUDIO COVER. 3.1.8 REMOVING THE MODULE BRACKETS (1) Remove the 2 screws [G] and remove the MODULE BRACKETS. MODULE BRACKETS AUDIO COVER D-SUB COVER...
  • Page 11 3.1.9 REMOVING THE MAIN BOARD SHIELD (1) Remove 4 screws [H] and remove the 2 nuts [I]. (2) Remove the tape fixing wires. (3) Remove the MAIN BOARD SHIELD by sliding to downside and lifting. Release the earth wires Holes for slide Tape (No.
  • Page 12 3.1.10 DISCONNECTING THE WIRING CONNECTORS (1) Disconnect the wiring connectors from P002 and P003 on MAIN PWB. NOTES: Confirm the wiring layout of harnesses. • The AUDIO wires are fixed by hot bond between P002 and P003, after connected. • The RIGHT SPEAKER wires are turn around into the gap as shown Fig.A.
  • Page 13 3.1.11 REMOVING THE LCD MODULE ASS’Y (1) Remove 3 screws [J]. (2) Remove the LCD MODULE ASS’Y by release from the 6 latches. Latches (Top) x4 Latch (Right) Latch (Left) Label (No. YA032) 1-13...
  • Page 14 3.1.12 REMOVING THE SPEAKERS (1) Disconnect the wires from the P603 on FRONT CONTROL PWB. (2) Strip off the sponges and lift the SPEAKERS. P603 Sponges SPEAKERS Wires under sponges 1-14 (No. YA032)
  • Page 15 3.1.13 REMOVING THE FRONT CONTROL PWB AND IR SENSOR PWB (1) Remove 2 screws [K] and remove the FRONT CONTROL PWB. (2) Remove a screw [L] and remove the IR SENSOR PWB. (3) Remove 3 screws [M] and remove the KEY assembly. FRONT CONTROL PWB wires (6P) IR SENSOR PWB...
  • Page 16 3.1.14 SUPPLEMENTAL 1 • The below assemblies are welded process. • If removing these components, it is necessary to replace them. VESA BRACKET Welded REAR COVER LED WINDOW Welded IR LENS Welded KEY COVER FRONT COVER LOGO Welded 1-16 (No. YA032)
  • Page 17 3.1.15 SUPPLEMENTAL 2 • SPEAKER assembly. • Confirm to connect the positive wire to the terminal with RED marker. High density rubber Black ( - ) Black ( - ) White (+) Red (+) Cushion rubber SPEAKER SPEAKER wires RED marker (No.
  • Page 18 3.1.16 SUPPLEMENTAL 3 • BASE assembly. BASE BRACKET Rubber foot BASE • HINGE assembly. HINGE COVER HINGE Latchs Hot bond Insert until locking 1-18 (No. YA032)
  • Page 19 (No. YA032) 1-19...
  • Page 20 3.2 REPLACEMENT OF MEMORY IC 3.2.1 PROCEDURE FOR REPLACING OF MEMORY IC Memory IC Notice MCU IC Notice 1-20 (No. YA032)
  • Page 21 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.

  • Page 22: Adjustment

    SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT. 1-22 (No. YA032)

  • Page 23: Troubleshooting

    SECTION 5 TROUBLESHOOTING No picture Appear Does the LED The Voltage of Replace F001 light up L100;L083 is 24V LED display is Next amber The Voltage of Replace L100 I041 #6 is 24V & L083 Reset the MCU(I004) Picture by pushing the power shows Is it entering into key or replugging the...
  • Page 24 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan (No. YA032) Printed in Japan...
  • Page 25 PARTS LIST CAUTION The parts identified by the symbol are important for the safety . Whenever replacing these parts, be sure to use specified ones to secure thesafety. The parts not indicated in this Parts List and those which are filled with lines in the Parts No.
  • Page 26 CABLE HOLDER DA-5641414900 HINGE COVER DA-5642679700 MODULE COVER (DUMMY) DA-5646255600 AV JACK SHIELD DA-5642679700 AV JACK COVER DA-5051253665 LCD PANEL LC41747-001C JVC BADGE DA-5053910008 INVERTER PWB DA-5055125200 SPEAKER DA-7000311032 SCREW (M3x06 ) DA-7136160252 SCREW (M3x04 ) DA-7190562204 SCREW (M2.5x04) DA-7190562306...

  • Page 27: Exploded View

    EXPLODED VIEW (No. YA032) 3-3...

  • Page 28: Printed Wiring Board Parts List

    PRINTED WIRING BOARD PARTS LIST PWB ASSEMBLIES LIST Symbol Part No. Part Name Description Symbol Part No. Part Name Description MAIN PWB ASS'Y DA-5097627802 D007 DA-6613003059 SWITCHING LS4148 IR SENSOR PWB ASS'Y DA-5097627802 D008 DA-6613003059 SWITCHING LS4148 AV JACK PWB ASS'Y DA-5098800736 D015 DA-6613000555 SWITCHING...
  • Page 29 Symbol Part No. Part Name Description Symbol Part No. Part Name Description CAPACITORS L037 DA-5062122981 FERRITE BEAD L038 DA-5062122981 FERRITE BEAD C001 DA-5218007891 E CAP. 10µF L039 DA-5062122981 FERRITE BEAD C002 DA-5218007991 E CAP. 100µF 16V L050 DA-5062122981 FERRITE BEAD C003 DA-5230005491 C CAP.
  • Page 30 Symbol Part No. Part Name Description Symbol Part No. Part Name Description C109 DA-5230005491 C CAP. 0.1µF C375 DA-5230005491 C CAP. 0.1µF C110 DA-5230005491 C CAP. 0.1µF C376 DA-5230005491 C CAP. 0.1µF C111 DA-5230005491 C CAP. 0.1µF C377 DA-5230007791 C CAP. 2.2µF C112 DA-5230005491...
  • Page 31 Symbol Part No. Part Name Description Symbol Part No. Part Name Description C456 DA-5240610091 C CAP. 10pF C568 DA-5214024302 E CAP. 470µF 50V C457 DA-5240610091 C CAP. 10pF C569 DA-5230007791 C CAP. 2.2µF C458 DA-5240615191 C CAP. 150pF 50V C570 DA-5205447102 E CAP.
  • Page 32 Symbol Part No. Part Name Description Symbol Part No. Part Name Description R092 DA-5134318009 MG RES. 18Ω 1/16W R203 DA-5134362109 MG RES. 620Ω 1/16W R093 DA-5134300009 MG RES. 0Ω 1/16W R204 DA-5134362109 MG RES. 620Ω 1/16W R094 DA-5134310209 MG RES. 1KΩ...

  • Page 33: Ir Sensor Pwb Assembly

    Symbol Part No. Part Name Description Symbol Part No. Part Name Description R347 DA-5134347209 MG RES. 4.7KΩ 1/16W R448 DA-5134110029 MG RES. 1% 10KΩ 1/16W R349 DA-5134310309 MG RES. 10KΩ 1/16W R449 DA-5134112019 MG RES. 1% 1.2KΩ 1/16W R350 DA-5134375009 MG RES.

  • Page 34: Av Jack Pwb Assembly

    AV JACK PWB ASSEMBLY Symbol Part No. Part Name Description Symbol Part No. Part Name Description DIODES C023 DA-5240647091 C CAP. 47pF C024 DA-5240647091 C CAP. 47pF D001 DA-6613000555 SWITCHING BAV99-7 C025 DA-5240647091 C CAP. 47pF D002 DA-6613000555 SWITCHING BAV99-7 C026 DA-5240647091 C CAP.

  • Page 35: Packing

    PACKING 10 11 PACKING PARTS LIST R e f . N o . P a r t N o . P a r t N a m e D e s c r i p t i o n DA-9513390256 CARTON BOX DA-9533390156 EPE PAD-L...
  • Page 36 ENGLISH DEUTSCH FRANÇAIS NEDERLANDS LT-17E31 BUG CASTELLANO ITALIANO PORTUGUÊS LT-17E31 SUG LT-23E31 BUG LT-23E31 SUG LCD FLAT TELEVISION INSTRUCTIONS LCD-FLACHBILD-FERNSEHER BEDIENUNGSANLEITUNG TELEVISEUR A ECRAN PLAT – LCD MANUEL D’INSTRUCTIONS PLATTE LCD-TELEVISIE GEBRUIKSAANWIJZINGEN TELEVISOR PLANO LCD MANUAL DE INSTRUCCIONES TELEVISORE SCHERMO PIATTO LCD ISTRUZIONI TELEVISÃO DE ECRÃ...
  • Page 37 Thank you for buying this JVC LCD flat television. To make sure you understand how to use your new TV, please read this manual thoroughly before you begin. (“LCD” stands for Liquid Crystal Display.) WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
  • Page 38 Point defects LCDs use collections of fine pixels to display images. While there is no problem with more than 99.99% of these pixels, please understand that a very small number of pixels may not light or may light all the time. Distance recommendations Avoid improper installation and never position the unit where good ventilation is impossible.
  • Page 39 Troubleshooting........29 Displaying the source information .....11 ZOOM function..........12 Specifications........31 Sleep timer funtion...........13. Picture mode............13. Using the PCPIP function .......13 Operating a JVC brand VCR or DVD player ..14 Teletext function........15 Basic operation ..........15 Hold..............15 Sub-page ............16 Reveal..............16 Size ..............16 Index ..............16...

  • Page 40: Setting Up Your Tv

    Setting up your TV Installation Cautions for installation • Install the TV in a corner on a wall or 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.

  • Page 41: Putting The Batteries Into The Remote Control

    Setting up your TV Putting the batteries into the Remote control Use two AA/R6 dry cell batteries. Insert the batteries from the - end, making sure the + and - polarities are correct. • Follow the warnings printed on the batteries. •...

  • Page 42: Connecting The Aerial And Video Cassette Recorder (Vcr)

    Setting up your TV Connecting the aerial and video Connecting the power cord to the AC cassette recorder (VCR) outlet • The connectin g cables are not pro vided. If you are connecting a AC adapter, follow • For further details, refer to the manuals provided with in the diagram below.

  • Page 43: Initial Settings

    Initial settings When the TV is first turned on, it enters the initial setting 3 AUTO PROGRAM menu appears. mode. Follow the instructions on the on-screen display to make the initial settings. AUTO PROGRAM LANGUAGE ENGLISH COUNTRY A .P .S VCR/TV/DVD : SELECT :MOVE...
  • Page 44 Initial settings Now, the initial settings are complete, and you can watch the TV • If your TV can detect the TV channel name from the TV channel broadcast signal, the TV channel name is assigned to the programme number to which the TV channel has been set.

  • Page 45: Tv Buttons And Functions

    TV buttons and functions Turn the TV on from standby mode Press the button or P buttons to turn the TV on from standby mode • Check that the AC plug on the power cord from the TV is connected to correctly AC outlet. Choose a TV channel Press the P buttons to choose a programme...

  • Page 46: Remote Control Buttons And Functions

    Remote control buttons and functions 1 Muting button 2 Number buttons 3 Information button 4 ZOOM button button button buttons (Text) button buttons 10 VCR/DVD/Teletext control buttons buttons button button Standby button VCR/TV/DVD switch button button Picture button Color buttons MENU button button buttons...

  • Page 47: Adjust The Volume

    Remote control buttons and functions Displaying the source information Adjust the volume You can display the source information and current time on Press the buttons to adjust the volume. The volume indicator appears and the volume changes as the screen. you press the buttons.

  • Page 48: Zoom Function

    Remote control buttons and functions Choose the ZOOM mode ZOOM function ZOOM 1 Press the button to display the ZOOM You can change the screen size according to the picture menu aspect ratio. Choose the optimum one from the following ZOOM •...

  • Page 49: Sleep Timer Funtion

    Remote control buttons and functions Sleep timer function Using the PCPIP function The Sleep Timer can turn the TV off for you after you fall A PC picture and TV or a video program from an asleep. Program it to work in intervals of 10 minutes, for external device can be watched at the same time.

  • Page 50: Operating A Jvc Brand Vcr Or Dvd Player

    (Standby) button. 2 Press the VCR/DVD Control Button to control your VCR or DVD player • If your device is not made by JVC, these buttons will not work. • Even if your device is made by JVC, some of these buttons may not work, depending on the device you are using.

  • Page 51: Teletext Function

    Teletext function Hold Basic operation You can hold a teletext page on the screen for as long as you want, even while several other teletext pages are being 1 Choose a TV channel with a teletext broadcast received. Press the (Hold) button 2 Make sure to set the VCR/TV/DVD switch to the TV position.

  • Page 52: Sub-Page

    Teletext function Sub-page Cancel Some teletext pages include sub-pages that are You can search for a teletext page while watching TV. automatically displayed. 1 Press the number button to enter a page 1 Choose a teletext page that includes sub-pages number, or press a colour button Press the button, Sub-page numbers can be viewed...

  • Page 53: Using The Tv's Menu

    Using the TV’s menu This TV has a number of functions you can operate using 3 Press the buttons to choose a function menus. To use all your TV’s functions, you need to • For details of the functions in the menus, see the understand the basic menu operating techniques fully.

  • Page 54: Picture Setting

    PICTURE SETTING Refer to “Using the TV’s menu” (see page 17) for details of COLOUR TEMP. displaying the menu. You can select one of three COLOUR TEMP. modes (three PICTURE tones of white) to adjust the white balance of the picture. PICTURE MODE MANUAL Since white is the colour which is used as a reference for all...

  • Page 55: Sound Setting

    SOUND SETTING HYPER SOUND Refer to “Using the TV’s menu” (see page 17) for details of displaying the menu. You can enjoy Surround sound with a “live” effect by using HYPER SOUND function. SOUND BASS function is turned on. HYPER SOUND TREBLE BALANCE OFF:...

  • Page 56: Features

    FEATURES Refer to “Using the TV’s menu” (see page 17) for details of displaying the menu. FEATURES BLUE BACK CHILD LOCK EXT-2 OUTPUT :MOVE : SELECT BLUE BACK You can set the TV to automatically change to a blue screen and mute the sound if the signal is weak or absent, or when there is no input from an external device.

  • Page 57: Install

    INSTALL Refer to “Using the TV’s menu” (see page 17) for details of PROGRAM displaying the menu. In TV mode : AUTO PROGRAM INSTALL You can automatically store the TV channels for which you have the best reception. Store them in the TV’s program MANUAL numbers list by doing the following.

  • Page 58: To Edit The Program Menu

    INSTALL NAME After the TV channels have been registered in 1 Press t buttons to choose a TV the programme numbers, the PROGRAM menu channel appears • If you want to, you can now edit the program Every time you press the buttons, the numbers using the PROGRAM function.
  • Page 59 INSTALL INSERT 4 Press the green button to insert the channel into 1 Press t buttons to choose a the new program number program number for which you want Every time you press the buttons, the PROGRAM programme number changes and the picture of the TV channel stored in the programme number appears 01 ---- 11 ----...
  • Page 60 INSTALL DELETE COLOUR SYSTEM in EXT mode 1 Press t buttons to choose a Press t buttons to choose the colour system program number for which you want When you are in EXT mode, you can only change the Every time you press the buttons, the colour system in the INSTALL menu.

  • Page 61: Pc Menu

    PC MENU (In PC mode only) This TV also has a number of functions on PC mode, COLOUR TEMP.: You can adjust the picture colour mode. you can operate using pc menus. COOL: A bluish white. Using this mode when watching bright PC MENU pictures allows you to enjoy a more vivid and bright picture.

  • Page 62: Pc Support Mode List

    PC MENU PC support mode list Mode NO. Mode Name H Freq. (kHz) Resolution V Freq. (Hz) VGA 60 Hz 31.469 640x480 59.941 SVGA 56 Hz 35.16 800x600 56.25 SVGA 60 Hz 37.879 800x600 60.317 XGA 60 Hz 48.363 1024x768 60.004 WXGA 47.73...

  • Page 63: Additional Preparation

    Additional preparation Connecting external equipment Connect the equipment to the TV, making the correct rear 1 VCR (composite signal) panel and front panel connections. 2 VCR (composite signal/S-VIDEO signal) 3 T-V LINK compatible VCR (composite signal/S-VIDEO Before connecting anything: signal) •...
  • Page 64 Additional preparation Equipment which can output the S-VIDEO Connecting Speakers/Amplifier signal (Y/C signal) such as an S-VHS VCR See the Audio equipment connection diagram, then connect the audio equipment you desire to the TV. Connect the equipment to an EXT terminal (but not the You can use external front speakers to listen to the TV EXT-1 terminal).

  • Page 65: Troubleshooting

    Troubleshooting If a problem arises while you are using the TV, please read this troubleshooting guide carefully before you ask to have the TV repaired. You may be able to fix it easily by yourself. For example, if the mains plug is disconnected from the mains outlet, or the TV aerial has problems, you may think there is a problem with the TV itself.
  • Page 66 Troubleshooting Other concerns • When the SLEEP TIMER function operates, the TV is automatically turned off. If the TV suddenly turns off, try to press the (standby) button to turn on the TV once again. If the TV goes back to normal, there is no problem.

  • Page 67: Specifications

    Specifications Model LT-17E31BUG/LT-17E31SUG LT-23E31BUG/LT-23E31SUG Item Broadcasting systems CCIR B/G, I, D/K, L Colour systems PAL, SECAM • The EXT terminals also support the NTSC 3.58/4.43 MHz system. Channels and frequencies • E2-E12, E21-E69, S1-S41, X, Y, Z, Z+1, Z+2, ITALY A-H, ITALY H+1, ITALY H+2, F2-F10, F21-F69, R1-R12, R21-R69, IR A-J •...
  • Page 68 5030057016 © 2003 VICTOR COMPANY OF JAPAN, LIMITED 1203-MK-TU...
  • Page 69 SCHEMATIC DIAGRAMS LCD FLAT TELEVISION LT-23E31 BUG/BJG LT-23E31 SUG/SJG LT-23E75 BJG LT-23E75 SJG CD-ROM No. SML200406 COPYRIGHT © 2004 Victor Company of Japan, Limited No.YA032 2004/6...
  • Page 70 LT-23E31BUG, LT-23E31BJG, LT-23E75BJG LT-23E31SUG, LT-23E31SJG, LT-23E75SJG STANDARD CIRCUIT DIAGRAMS CONTENTS USING P.W. BOARD ..................................2-1 SEMICONDUCTOR ..................................2-1 BLOCK DIAGRAM ..................................2-2 CIRCUIT DIAGRAMS ................................... 2-3 MAIN PWB CIRCUIT DIAGRAM ................................2-3 IR SENSOR PWB CIRCUIT DIAGRAM .............................. 2-25 AV JACK PWB CIRCUIT DIAGRAM ..............................2-27 FRONT CONTROL PWB CIRCUIT DIAGRAM ...........................

  • Page 71: Block Diagram

    BLOCK DIAGRAM P603 P005 P008 P007 P002 P003 PT17 P001 No. YA032...

  • Page 72: Circuit Diagrams

    CIRCUIT DIAGRAMS MAIN PWB CIRCUIT DIAGRAM (1/11) 23" (NC) DC IN (24V) MAIN PWB ASS'Y (1/11) Power save Sheet 2,6,9,10 No. YA032 No. YA032...

  • Page 73: Main Pwb Circuit Diagram

    MAIN PWB CIRCUIT DIAGRAM (2/11) Sheet 3 Sheet 5,7 Sheet 8 Sheet 8 Sheet 10,11 Sheet 4 Sheet 7 Sheet 1,6,9,10 Sheet 8 Sheet 8 Sheet 5 FRONT CONTROL PWB P602 Sheet 3,4,5,6,7,10 MAIN PWB ASS'Y (2/11) IR SENSOR PWB P601 No.
  • Page 74 MAIN PWB CIRCUIT DIAGRAM (3/11) A/D CONVERTER Sheet 8 Sheet 8 Sheet 2 Sheet 8 MAIN PWB ASS'Y (3/11) No. YA032 No. YA032...
  • Page 75 MAIN PWB CIRCUIT DIAGRAM (4/11) Sheet 10 Sheet 6 Sheet 6 Sheet 6 Sheet 6 Sheet 10 Sheet 6 Sheet 6 Sheet 6 Sheet 6 AV JACK PWB Sheet 6 P001 Sheet 6 Sheet 6 Sheet 2 Sheet 6 MAIN PWB ASS'Y (4/11) TUNER PWB PT17 No.
  • Page 76 MAIN PWB CIRCUIT DIAGRAM (5/11) Sheet 2,3,4,6,7,10 Sheet 2 Sheet 4 Sheet 6 Sheet 6 Sheet 6 TELE TEXT Sheet 6 MAIN PWB ASS'Y (5/11) No. YA032 2-11 2-12 No. YA032...
  • Page 77 MAIN PWB CIRCUIT DIAGRAM (6/11) Sheet 2,3,4,5,7,10 Sheet 4 Sheet 2 Sheet 5 Sheet 1,2,9,10 Sheet 4 Sheet 7,8 VIDEO DECODER COMB FILTER Sheet 7,8 Sheet 5 MAINPWB ASS'Y (6/11) No. YA032 2-13 2-14 No. YA032...
  • Page 78 MAIN PWB CIRCUIT DIAGRAM (7/11) Sheet 8 DE-INTERLACE Sheet 6,8 Sheet 2,3,4,5,6,10 Sheet 8 MAIN PWB ASS'Y (7/11) No. YA032 2-15 2-16 No. YA032...
  • Page 79 MAIN PWB CIRCUIT DIAGRAM (8/11) Sheet 9 Sheet 9 Sheet 9 Sheet 6,7 Sheet 2 Sheet 7 SCALER Sheet 3 Sheet 2 Sheet 3 Sheet 3 Sheet 2 Sheet 7 Sheet 3 MAIN Sheet 7 Sheet 7 Sheet 3 Sheet 6,7 Sheet 9 Sheet 3 Sheet 2...
  • Page 80 MAIN PWB CIRCUIT DIAGRAM (9/11) Sheet 8 Sheet 8 Sheet 8 PANEL Sheet 8 LVDS DECODER MAIN PWB ASS'Y (9/11) No. YA032 2-19 2-20 No. YA032...
  • Page 81 MAIN PWB CIRCUIT DIAGRAM (10/11) Sheet 2,11 Sheet 1,2,6,9 Sheet 4 Sheet 4 Sheet 4 Sheet 11 Sheet 2,3,4,5,6,7 Sheet 4 MAIN PWB ASS'Y (10/11) No. YA032 2-21 2-22 No. YA032...
  • Page 82 MAIN PWB CIRCUIT DIAGRAM (11/11) Sheet 10 FRONT CONTROL PWB P604 Sheet 2,10 AUDIO AMP MAIN PWB ASS'Y (11/11) No. YA032 2-23 2-24 No. YA032...

  • Page 83: Ir Sensor Pwb Circuit Diagram

    IR SENSOR PWB CIRCUIT DIAGRAM MAIN PWB (2/11) P003 IR SENSOR PWB ASS'Y No. YA032 2-25 2-26 No. YA032...

  • Page 84: Av Jack Pwb Circuit Diagram

    AV JACK PWB CIRCUIT DIAGRAM MAIN PWB (4/11) P006 AV JACK PWB ASS'Y No. YA032 2-27 2-28 No. YA032...

  • Page 85: Front Control Pwb Circuit Diagram

    FRONT CONTROL PWB CIRCUIT DIAGRAM SPEAKERS MAIN PWB (11/11) P005 MAIN PWB (2/11) P002 FRONT CONTROL PWB ASS'Y No. YA032 2-29 2-30 No. YA032...

  • Page 86: Tuner Pwb Circuit Diagram

    TUNER PWB CIRCUIT DIAGRAM MAIN PWB (4/11) P012 TUNER PWB ASS'Y No. YA032 2-31 2-32 No. YA032...

  • Page 87: Pattern Diagrams

    PATTERN DIAGRAMS MAIN PWB PATTERN No. YA032 2-33 2-34 No. YA032...

  • Page 88: Ir Seneor Pwb Pattern

    IR SENSOR PWB PATTERN AV JACK PWB PATTERN FRONT CONTROL PWB PATTERN TUNER PWB PATTERN No. YA032 2-35...
  • Page 89 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan (No. YA032) Printed in Japan...

This manual is also suitable for:

Lt-23e31 sugLt-23e31 bugLt-23e75 sjgLt-23e31sjgLt-23e75 bjg

Table of Contents