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

SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

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

ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-46

LT-26C31BC

BASIC CHASSIS

No.YA169

2004/8

Chapters

Table of Contents

Troubleshooting

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Summary of Contents for JVC InteriArt LT-26C31BC

Page 1: Table Of Contents
WIDE LCD PANEL TELEVISION YA169 2004 LT-26C31BC BASIC CHASSIS TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
Page 2 SPECIFICATION Items Contents Dimensions (W × H × D) 70.3 cm × 56.0 cm × 2.6 cm (Included stand) 70.3 cm × 49.1 cm × 9.4 cm (TV only) Mass 19.0 kg (Included stand) 18.3 kg (TV only) TV RF System CCIR B/G, I, D/K, L Colour System PAL / SECAM / NTSC 3.58 / NTSC 4.43 (NTSC:EXT only).
Page 3: Precaution
SECTION 1 PRECAUTION SAFETY PRECAUTIONS (1) The design of this product contains special hardware, (8) When service is required, observe the original lead dress. many circuits and components specially for safety Extra precaution should be given to assure correct lead purposes.
Page 4: No.ya169)1
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 HANDLING LCD PANEL 1.3.1 PRECAUTIONS FOR TRANSPORTATION When transporting the unit, pressure exerted on the internal LCD panel due to improper handling (such as tossing and dropping) may cause damages even when the unit is carefully packed. To prevent accidents from occurring during transportation, pay careful attention before delivery, such as through explaining the handling instructions to transporters.
Page 6: Specific Service Instructions
SECTION 2 SPECIFIC SERVICE INSTRUCTIONS FEATURES 2.1.1 FUNCTION / CIRCUITS EXT-1 EXT-3 EXT-4 • DIST (Digital Image Scaling Technology) employs an interpolation method that doubles the scanning lines to realize 1250-line flicker- free picture making it especially suitable for reproducing high- resolution pictures even on large-screen displays.
Page 7 TECHNICAL INFORMATION 2.2.1 LCD PANEL This unit uses the flat type panel LCD (Liquid Crystal Display) panel that occupies as little space as possible, instead of the conventional CRT (Cathode Ray Tube), as a display unit. 2.2.1.1 STRUCTURE The LCD panel of the unit is constructed with the metal chassis that surrounds the panel unit and supports the LCD panel part and the backlight part to protect them.
Page 8 2.2.2 MAIN CPU PIN FUNCTION (IC001) Pin No. Pin Name Remark Pin No. Pin Name Remark I/O Data (Program ROM) Test purpose I/O Data (Program ROM) Test purpose I/O Data (Program ROM) Test purpose VSS33 O Test purpose VDD33 3.3V P2.8 Remote control input I/O Data (Program ROM)
Page 9 2.2.3 SUB CPU PIN FUNCTION (IC7807) Pin No. Pin name Function (SYSTEM0) (SYSTEM3) AVCC Sub clock Sub clock Internal down voltage Reset [Reset : L] TEST Operation test for SUB CPU OSC2 10MHz oscillation for system clock OSC1 10MHz oscillation for system clock Not used Not used BL_D2...
Page 10: Disassembly
SECTION 3 DISASSEMBLY DISASSEMBLY PROCEDURE CAUTION: Since this model is a laminating structure assembly, please perform in following order in the case of disassembling. 3.1.1 REMOVING THE STAND ASS'Y (Fig.3-1-1) (1) Remove the 2 screws [A], and remove the COVER. (2) Remove the 4 screws [B], and remove the STAND ASS'Y.
Page 11 3.1.3 REMOVING THE FAN BRACKET, REGULATOR PWB AND POWER CORD (Fig.3-1-3) • Remove the STAND ASS'Y. • Remove the REAR COVER. FAN BRACKET (1) Disconnect the wire(CONN. [Y]) of COOLING FAN. (2) Remove the 5 screws [F], and remove the FAN BRACKET. (3) Remove the REGULATOR PWB, and disconnect the COOLING FAN POWER CORD.
Page 12 3.1.6 REMOVING THE VIDEO PWB (Fig.3-1-6) • Remove the STAND ASS'Y. JACK BASE VIDEO PWB • Remove the REAR COVER. (1) Remove the 2 screws [N] and 1 screws [P], then remove TUNER PWB MSP PWB the JACK BASE. (2) Remove the 4 screws [Q], and remove the VIDEO PWB. (3) Remove the 2 screws [R], and remove the TUNER PWB BASE.
Page 13 3.1.9 REMOVING THE SPEAKER (Fig.3-1-9A, Fig.3-1-9B) • Remove the STAND ASS'Y. SPEAKER BOX • Remove the REAR COVER. • Remove the POWER CORD. (1) Remove the 5 screws [a], and remove the SPEAKER BOX. Fig.3-1-9A (2) Remove the 4 screws [b], and remove the SPEAKER (L/R). (3) Remove the 4 screws [c], and remove the DUCT COVER/ DUCT BASE/DUCT COVER DUCT BASE.
Page 14 3.1.10 REMOVING THE LCD PANEL (Fig.3-1-10C, Fig.3-1-10A, Fig.3-1-10B) • Remove the STAND ASS'Y. • Remove the REAR COVER. • Remove the POWER CORD. CENTRE • Remove the RECEIVER PWB. FRAME • Remove the FRONT CONTROL PWB. • Remove the FRONT SENSOR PWB. •...
Page 15 3.1.11 REMOVING THE LCD PANEL 3.1.11.1 REMOVING THE CONTROL PWB 3.1.11.2 REMOVING THE INVERTER PWB • Place the LCD PANEL with its backside facing upward. (1) Remove the 5 screws [C], and remove the INVERTER Be careful not to damage the surface of the screen. PWB COVER.
Page 16 3.1.11.3 REMOVING THE BACKLIGHT UNIT NOTE: (1) Remove the 8 screws [E], 4screws [F], and 4 screws [G] Do not carry out the following procedure in a dusty and dirty (16 screws in total), and remove the MAIN CHASSIS. place. NOTE: If the surface of LCD GLASS, the surface of DIFFUSER Be careful not to damage the SOURCE IC and the GATE...
Page 17 REPLACEMENT OF MEMORY IC This unit uses the nonvolatile memory IC.The memory IC memories data for video and deflection circuits. To replace the memory IC without the data written, malfunctions might occurred while power is on, and the normal image might not appear. When replacing the memory IC, be sure to use the IC written with the initial values of data.
Page 18 3.2.3.2 USER SETTINGS OF MENU Setting item Setting value Setting item Setting value POWER SOUND SETTING CHANNEL BASS Centre TREBLE Centre PRESET CHANNEL Refer to BALANCE Centre OPERATING INSTRUCTIONS SPEAKER VOLUME PICTURE SETTING 3D SOUND PICTURE MODE BRIGHT A. H. B COLOUR TEMP.
Page 19 3.2.3.4 SERVICE MENU SETTING ITEMS Setting item Setting value Setting item Setting value 1.IF 1.VCO 6.STATUS (Do not adjust) 2.ATT ON/OFF 2.V/C 1.CUT OF R 7.VNR 1.MYLV 2.CUT OF G (Do not adjust) 2.ONMVF 3.CUT OF B 3.MYCOR 4.DRIVE R 4.MYGA 5.DRIVE G 5.YEGON...
Page 20 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 21: Adjustment
SECTION 4 ADJUSTMENT ADJUSTMENT PREPARATION MEASURING INSTRUMENT AND FIXTURES (1) Prior to the following procedure, be sure to connect the • DC voltmeter (or Digital voltmeter) receiver unit and the display unit. • Oscilloscope (2) Adjustment of many Majority of the adjustment items for •...
Page 22 ADJUSTMENT LOCATION & WIRING 1-22 (No.YA169)
Page 23 SERVICE MENU SCREEN SERVICE MENU SERVICE MENU 1. IF 2. V/C 3. AUDIO 4. DD/CM 5. VSM PRESET 6. STATUS 7. VNR 8. IP 9. SHIPPING (OFF) 0. BUS FREE 1-9 : SELECT i : EXIT 1.IF 4. DD/CM IF SERVICE MENU DD/CM 1.
Page 24 BASIC OPERATION OF THE SERVICE MENU MODE [USING REMOTE CONTROL UNIT] 4.5.1 TOOLS OF SERVICE MENU OPERATION 4.5.5 SETTINGS OF THE SERVICE MENUS Operate the SERVICE MENU with the remote control unit. 1. IF (VCO adjustment, ATT setting) 4.5.2 HOW TO ENTER THE SERVICE MENU MODE [Do not adjust] (1) Press the [INFORMATION] key and the [MUTING] key of 2.
Page 25 DEFAULT VALUES IN THE SERVICE MENU SETTING MODE • Perform fine-tuning based on the "default values" using the remote control when in the SERVICE MENU setting mode. • The "default 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.
Page 26 Setting value Item Variable Item No. name range SECAM NTSC R GAIN 0000~0255 0249 0249 0249 (NO DISPLAY) -128~0127 0000 0000 0000 G GAIN 0000~0255 0255 0255 0255 (NO DISPLAY) -128~0127 0001 0001 0001 B GAIN 0000~0255 0254 0254 0254 (NO DISPLAY) -128~0127 0000...
Page 27 Setting value Item Variable Item No. name range SECAM NTSC (NO DISPLAY) 0000~0015 0000 0000 0000 (NO DISPLAY) 0000~0255 0000 0000 0000 (NO DISPLAY) 0000~0015 0000 0000 0000 (NO DISPLAY) 0000/0001 0001 0001 0001 (NO DISPLAY) 0000~0127 0016 0016 0016 (NO DISPLAY) 0000/0001 0000...
Page 28 4.6.1.2 AUDIO SYSTEM Item Variable Item No. Setting value name range (NO DISPLAY) 0000~0007 0001 (NO DISPLAY) 0000~0007 0001 (NO DISPLAY) 0000~0007 0001 (NO DISPLAY) 0000~0007 0000 (NO DISPLAY) 0000~0009 0003 (NO DISPLAY) 0000~0015 0004 (NO DISPLAY) 0000~0015 0006 (NO DISPLAY) 0000~0015 0003 (NO DISPLAY)
Page 29 4.6.3 [4.DD/CM] NOTE: • For reference, initial setting values (except OSD-G/B/R) in the following conditions are written here. • Input signal : PAL/SECAM/NTSC • Picture mode : Standard • Zoom : Full • Multi screen : Single screen • Colour temp. : Normal Setting value Item Variable...
Page 30 Setting value Item Variable Item No. name range SECAM NTSC CMT03 (NO DISPLAY) 0000~0255 0030 0030 0020 CMT04 (NO DISPLAY) 0000~0255 0030 0030 0030 CMT05 (NO DISPLAY) 0000~0063 0059 0059 0060 CMT06 (NO DISPLAY) -128~0127 0005 0005 -002 CMT07 (NO DISPLAY) -128~0127 0002 0002...
Page 31 Setting value Item Variable Item No. name range SECAM NTSC CMT48 (NO DISPLAY) 0000/0001 0000 0000 0000 CMT49 (NO DISPLAY) 0000/0001 0001 0001 0001 CMT50 (NO DISPLAY) 0000~0031 0021 0021 0021 CMT51 (NO DISPLAY) 0000~0031 0021 0021 0021 CMT52 (NO DISPLAY) 0000/0001 0000 0000...
Page 32 4.6.5 [8.IP] (*All fixed) NOTE: • For reference, initial setting values in the following conditions are written here. • Input signal : PAL/SECAM/NTSC • Picture mode : Standard • Zoom : Full • Multi screen : Single screen • Colour temp. : Normal Setting value Item Variable...
Page 33 Setting value Item Variable Item No. name range SECAM NTSC PPB029 (NO DISPLAY) 0000~00FF 0000 0000 0000 PPB030 (NO DISPLAY) 0000~00FF 0000 0000 0000 PPB031 (NO DISPLAY) 0000~001F 0000 0000 0000 PPB032 (NO DISPLAY) 0000~00FF 0000 0000 0000 PPB033 (NO DISPLAY) 0000~00FF 0000 0000...
Page 34 Setting value Item Variable Item No. name range SECAM NTSC ADS026 (NO DISPLAY) 0000/0001 0001 0001 0001 ADS027 (NO DISPLAY) 0000/0001 0001 0001 0001 ADS028 (NO DISPLAY) 0000/0001 0001 0001 0001 ADS029 (NO DISPLAY) 0000/0001 0000 0000 0000 ADS030 (NO DISPLAY) 0000~001F 0003 0003...
Page 35 Setting value Item Variable Item No. name range SECAM NTSC IPA035 (NO DISPLAY) 0000/0001 0001 0001 0001 IPA036 (NO DISPLAY) 0000~003F 000D 000D 000D IPA037 (NO DISPLAY) 0000~003F 000D 000D 000D IPA038 (NO DISPLAY) 0000~003F 0010 0010 0010 IPA039 (NO DISPLAY) 0000~0003 0001 0001...
Page 36 Setting value Item Variable Item No. name range SECAM NTSC IPA080 (NO DISPLAY) 0000/0001 0000 0000 0000 IPA081 (NO DISPLAY) 0000/0001 0000 0000 0000 IPA082 (NO DISPLAY) 0000/0001 0000 0000 0000 IPA083 (NO DISPLAY) 0000/0001 0000 0000 0000 IPA084 (NO DISPLAY) 0000/0001 0000 0000...
Page 37 Setting value Item Variable Item No. name range SECAM NTSC IPB001 (NO DISPLAY) 0000~00FF 0001 0001 0001 IPB002 (NO DISPLAY) 0000~00FF 0001 0001 0003 IPB003 (NO DISPLAY) 0000~000F 0000 0000 0000 IPB004 (NO DISPLAY) 0000~00FF 0000 0000 0000 IPB005 (NO DISPLAY) 0000~000F 0000 0000...
Page 38 Setting value Item Variable Item No. name range SECAM NTSC IPB046 (NO DISPLAY) 0000~00FF 008B 008B 008B IPB047 (NO DISPLAY) 0000~000F 0000 0000 0000 IPB048 (NO DISPLAY) 0000~00FF 0000 0000 0000 IPB049 (NO DISPLAY) 0000~000F 0000 0000 0000 IPB050 (NO DISPLAY) 0000~00FF 000F 000F...
Page 39 Setting value Item Variable Item No. name range SECAM NTSC IPC001 (NO DISPLAY) 0000~0003 0002 0002 0002 IPC002 (NO DISPLAY) 0000~00FF 00EA 00EA 00EA IPC003 (NO DISPLAY) 0000/0001 0000 0000 0000 IPC004 (NO DISPLAY) 0000/0001 0000 0000 0000 IPC005 (NO DISPLAY) 0000~000F 0000 0000...
Page 40 Setting value Item Variable Item No. name range SECAM NTSC IPD001 (NO DISPLAY) 0000~00FF 0040 0040 0040 IPD002 (NO DISPLAY) 0000~00FF 0000 0000 0000 IPD003 (NO DISPLAY) 0000~00FF 0000 0000 0000 IPD004 (NO DISPLAY) 0000~0007 0000 0000 0000 IPD005 (NO DISPLAY) 0000~00FF 0000 0000...
Page 41 Setting value Item Variable Item No. name range SECAM NTSC IPD046 (NO DISPLAY) 0000/0001 0000 0000 0000 IPD047 (NO DISPLAY) 0000~00FF 0000 0000 0000 IPD048 (NO DISPLAY) 0000~00FF 0000 0000 0000 IPD049 (NO DISPLAY) 0000~00FF 0090 0090 0090 IPD050 (NO DISPLAY) 0000~0007 0000 0000...
Page 42 ADJUSTMENT PROCEDURE 4.7.1 CHECK ITEM Measuring Item Test point Adjustment part Description instrument VCO (AFT) Remote control [1.IF] (1) Receive a PAL colour bar signal. check unit 1.VCO(CW) (2) Select "1. IF" from the SERVICE MENU. (3) Select "1. VCO." Signal generator (4) Make sure that an arrow of "MAIN"...
Page 43 Measuring Item Test point Adjustment part Description instrument Remote control [2. V/C] (1) Receive a PAL black and white pattern signal CONTRAST unit 10. CONT (colour off). (Contrast) (2) Select "2. V/C" from the SERVICE MENU. Signal generator (3) Adjust < 10. CONT > (Contrast) to set the white part to be white.
Page 44 Measuring Item Test point Adjustment part Description instrument SUB-SCREEN Remote control [2. V/C] (1) Receive a PAL black and white pattern signal BRIGHTNESS unit 11. TWN BRG (including 0% black signal). (Sub-screen (2) Select "2. V/C" from the SERVICE MENU. Signal generator bright) (3) Adjust <...
Page 45 Measuring Item Test point Adjustment part Description instrument PAL/SECAM/ Remote control [2. V/C] - SUB-SCREEN PAL COLOUR - NTSC unit 16. TWN COL (1) Receive a PAL colour bar signal (full field colour SUB-SCREEN (Sub-screen bar). COLOUR Signal generator colour) (2) Select "2.
Page 46: Troubleshooting
SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING. 1-46 (No.YA169)
Page 47 (No.YA169)1-47...
Page 48 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.YA169) Printed in Japan...
Page 49 ENGLISH LT-26C31BC WIDE LCD PANEL TV INSTRUCTIONS LCT1628-003A...
Page 51 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 52: Cleaning The Screen
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 53 Using the FREEZE function ......13 Using the PIP function ........13 Connecting the external devices ..... 33 Using the MULTI-PICTURE function ....14 CH/CC numbers ........35 Operating a JVC brand VCR or DVD player ..14 Troubleshooting........36 Teletext function........15 Specifications........38 Basic operation ..........15 Using the List Mode .........15...
Page 54: Setting Up Your Tv
Setting up your TV • When you install the TV on the wall, only use a JVC wall mounting unit (optional) which is designed for this TV. • Ensure that the TV is installed on the wall by a skilled installer.
Page 55: 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 56: Connecting The Aerial And Vcr
Setting up your TV Connecting the aerial and VCR Connecting the power cord to the AC outlet • The connecting cables are not provided. • For further details, refer to the manuals provided with Insert the AC plug on the power cord from the TV into AC the devices to be connected.
Page 57: Initial Settings
6 Press the blue button to start the AUTO 2 Press the # button on the remote control PROGRAM function The TV turns on from standby mode and the JVC logo is The AUTO PROGRAM menu appears and received TV displayed.
Page 58: T-V Link Functions
TV by a fully wired SCART cable. by the VCR’s tuner. For details, refer to your VCR A “T-V LINK compatible VCR” means a JVC VCR with instruction manual. the T-V LINK logo or a VCR with one of the following logos.
Page 59: Tv Buttons And Functions
TV buttons and functions Turn the TV on from standby mode Press the A button or P p buttons to turn the TV on from standby mode When the TV is turned on, the power lamp dims slightly. • Check that the AC plug on the power cord from the TV is connected to correctly AC outlet.
Page 60: Remote Control Buttons And Functions
Remote control buttons and functions 1 Muting button 2 Number buttons 3 Information button 4 c button 5 3 sound button 6 b button 7 5 buttons 8 g (Text) button 9 p p buttons 0 VCR/DVD/Teletext control buttons - p buttons = Standby button ~ VCR/TV/DVD switch ! R button...
Page 61: Adjust The Volume
Remote control buttons and functions Use the PR LIST: Use the PR LIST: 1 Press the h (Information) button to display the 1 Press the h (Information) button to display the PR LIST PR LIST Pressing the h (Information) button changes the display 2 Press the 5 and 6 buttons to choose an as follows: EXT terminal.
Page 62: Zoom Function
Remote control buttons and functions Choose the ZOOM mode ZOOM function 1 Press the c 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 modes.
Page 63: Displaying The Current Time
Remote control buttons and functions Displaying the current time Using the PIP function You can display the Current Time on the screen. You can view two pictures (Main-picture and sub-picture). TV programme and a video programme from an external Press the h (Information) button to display the device can be watched at the same time.
Page 64: Using The Multi-Picture Function
525p or 1125i signal while the EXT-4 picture is cannot be used. displayed as the sub-picture, the PIP function is • Even if your device is made by JVC, some of these cancelled. buttons or any one of the buttons may not work, - The pictures cannot be swapped when a picture of depending on the device.
Page 65: Teletext Function
Teletext function Basic operation Using the List Mode You can store the numbers of your favourite teletext pages 1 Choose a TV channel with a teletext broadcast in memory and call them up quickly using the colour buttons. 2 Make sure to set the VCR/TV/DVD switch to the To store the page numbers: TV position.
Page 66: Sub-Page
Teletext function Sub-page Some teletext pages include sub-pages that are automatically displayed. 1 Choose a teletext page that includes sub-pages Sub-page numbers that can be viewed are automatically displayed at the top of the screen. 2 Press the 5 buttons to choose a sub-page number Reveal Some teletext pages include hidden text (such as answers to...
Page 67: Using The Tv's Menu
Using the TV’s menu This TV has a number of functions you can operate using 3 Press the 6 buttons to choose a function menus. To fully utilize 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 68: 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 SETTING tones of white) to adjust the white balance of the picture. PICTURE MODE BRIGHT Since white is the colour which is used as a reference for all...
Page 69: Picture Features
PICTURE FEATURES Refer to “Using the TV’s menu” (see page 17) for details of Super DigiPure displaying the menu. The Super DigiPure function uses the latest in digital PICTURE FEATURES technology to give you a natural-looking picture. The Super DigiPure function includes the following two functions. DIGITAL VNR AUTO AUTO...
Page 70: Colour System
PICTURE FEATURES COLOUR SYSTEM 4:3 AUTO ASPECT The colour system is chosen automatically. However, if the You can choose one of three ZOOM modes, REGULAR, picture is not clear or no colour appears, choose the colour PANORAMIC or 14:9 ZOOM, as the ZOOM mode for the system manually.
Page 71: Sound Setting
SOUND SETTING Refer to “Using the TV’s menu” (see page 17) for details of SPEAKER displaying the menu. You can turn off the sound from the TV speakers; but you SOUND SETTING should only do this if an audio system is connected to the STEREO/ TV as a substitute for the TV speakers.
Page 72: Headphone
SOUND SETTING HEADPHONE You need to use the HEADPHONE menu to adjust the volume of the headphones. The HEADPHONE menu can also be used to set whether or not sound comes from the TV speakers when the headphones are being used and to perform the settings for the sound coming from the headphones.
Page 73: Ext Setting
EXT SETTING Refer to “Using the TV’s menu” (see page 17) for details of ID LIST displaying the menu. You can have a name corresponding to the devices EXT SETTING connected for each EXT terminal. Giving a name to an EXT EXT-1 terminal makes the EXT terminal number appear on the DUBBING...
Page 74 EXT SETTING 2 Press the 6 buttons to choose an EXT terminal or TV. Then press the a button The arrow in the menu represents a signal flow. The left side of the arrow denotes a signal source output from the EXT-2 terminal.
Page 75: Features
FEATURES Refer to “Using the TV’s menu” (see page 17) for details of To set the CHILD LOCK function displaying the menu. 1 Choose CHILD LOCK, then press the o button FEATURES “SET ID NO.” (ID number setting screen) appears. SLEEP TIMER BLUE BACK CHILD LOCK...
Page 76: Decoder (Ext-2)
FEATURES 3 Press the Number buttons to enter the ID number The lock is temporarily released so you can view the TV channel. If you have forgotten the ID number: Perform step 1 of “To set the CHILD LOCK function”. After confirming the ID number, press the b button to exit the menu.
Page 77: Install
INSTALL Refer to “Using the TV’s menu” (see page 17) for details of • You can proceed to edit the Programme numbers displaying the menu. (PR) using the EDIT/MANUAL function. For details, see “EDIT/MANUAL” on page 28. • If you do not need to use the EDIT/MANUAL INSTALL function, go to the next step.
Page 78: Edit/Manual
INSTALL 3 Press the a button to complete the settings EDIT/MANUAL The T-V LINK menu appears. The EDIT/MANUAL functions are divided into two types: editing of the current Programme numbers (PR) (EDIT T-V LINK functions) and manual registration of a TV channel you DOWNLOAD want to view to the Programme number (PR) (MANUAL BACK...
Page 79 INSTALL INSERT Preparation: 1 Press the 6 buttons to choose a TV channel • A CH/CC number unique to this TV and corresponding Every time you press the 6 buttons, the Programme to the Channel number of a TV channel is required. Find number (PR) is changed over, and the picture of the TV the corresponding CH/CC number from a table “CH/CC channel registered in the Programme number (PR)
Page 80 INSTALL DELETE 5 Press the green or red button repeatedly until the TV channel you want appears 1 Press the 6 buttons to choose a TV channel If the TV channel reception is poor: Every time you press the 6 buttons, the Programme number (PR) is changed over, and the picture of the TV Press the blue or yellow button to fine-tune the TV channel registered in the Programme number (PR)
Page 81: Additional Menu Operations
Additional menu operations Downloading the data to VCR Changing the COUNTRY setting You can transmit to the latest Programme numbers (PR) After the AUTO PROGRAM function is completed, you data to the VCR with the T-V LINK function. can change the country you have already set by using the AUTO PROGRAM function.
Page 82: Using The Decoder (Ext-2) Function
Additional menu operations Using the DECODER (EXT-2) function When connecting a Decoder with a T-V LINK compatible VCR connected to the EXT-2 terminal, use the DECODER (EXT-2) function to unscramble the scrambled TV channels. 1 Turn on the Decoder power 2 Display the TV channel capable of being unscrambled with the Decoder on the TV Even if the Decoder is functioning, a scrambled picture...
Page 83: Additional Preparation
Additional preparation Connecting the external devices Connect the devices to the TV, paying attention to the 1 VCR (composite signal) following connection diagram. 2 VCR (composite signal/S-VIDEO signal) 3 T-V LINK compatible VCR (composite signal/S-VIDEO Before connecting anything: signal) • Read the manuals provided with the devices. Depending 4 Decoder on the devices, the connection method may differ from 5 DVD player (composite signal/S-VIDEO signal)
Page 84: Connecting Headphones
Additional preparation Devices which can output the S-VIDEO signal Connecting Speakers/Amplifier (Y/C signal) such as a S-VHS VCR See the Audio equipment connection diagram, then connect the audio equipment you desire to the TV. Connect the device to an EXT terminal other than the EXT- You can use external front speakers to listen to the TV 1 terminal.
Page 85: Ch/Cc Numbers
CH/CC numbers When you want to use the INSERT function on page 29, find the CH/CC number corresponding to the Channel number of the TV channel from this table. Channel Channel Channel Channel CH 02 / CH 202 E2, R1 CH 40 / CH 240 E40, R40 CC 01 / CC 201...
Page 86: Troubleshooting
Troubleshooting If a problem arises while you are using the TV, please read this “Troubleshooting” well before you request having the TV repaired. You may be able to fix it easily by yourself. For example, if the AC plug is disconnected from the AC outlet, or the TV aerial has problems, you may think there is a problem with the TV itself.
Page 87 Troubleshooting Other concerns • When the SLEEP TIMER function operates, the TV is automatically turned off. If the TV is turned off suddenly, try to press the # (Standby) button to turn on the TV once again. At this time, if the TV resumes a normal state, there is no problem.
Page 88: Specifications
Specifications Model LT-26C31BC 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 •...
Page 90 “JVC” is the trademark or registered trademark of Victor Company of Japan, Limited. © 2004 Victor Company of Japan, Limited 0604-MK-CR-VP...
Page 91: Parts List
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 the  safety. The parts not indicated in this Parts List and those which are filled with lines --- in the Parts No. columns will not be supplied. P.W.
Page 92 CONTENTS USING P.W. BOARD & REMOTE CONTROL UNIT ....................3-3 EXPLODED VIEW PARTS LIST ..........................3-4 EXPLODED VIEW ............................... 3-5 PRINTED WIRING BOARD PARTS LIST ........................3-8 VIDEO P.W. BOARD ASS'Y (LCA90207-01B)(SMK-1601A) ................3-8 REGULATOR P.W. BOARD ASS'Y (LCA90150-06D)(SMK-9612A) ..............3-9 POWER P.W.
Page 93: Exploded View Parts List
SP01/SP02(x2) LC21340-001B-HK DUCT COVER (x2) LC21339-001A-HK DUCT BASE (x2)  156 LC11623-004C-0K FRONT PANEL ASSY Inc.156A 156A CM48006-010-C JVC MARK QUQ105-3008AH FFC WIRE 30pin 8cm QUQ105-3008AH FFC WIRE 30pin 8cm  200 LCA90206-01B RECEIVER PWB  201 LCA90150-06D REGULATOR PWB ...
Page 94: Exploded View
EXPLODED VIEW <REAR COVER> 111A 111B 121A 121B STICK SHEET FAN BRACKET INSULATOR 133A 3-4(No.YA169)
Page 95 EARTH PLATE EARTH PLATE RECEIVER BRACKET CHASSIS BASE CENTRE FRAME RIGHT FRAME VIDEO PWB BRACKET LEFT FRAME BOTTOM FRAME TOP FRAME 156A (No.YA169)3-5...
Page 96 CONTROL PWB COVER INVERTER PWB COVER LCD PANEL UNIT LCD PANEL UNIT MAIN CHASSIS FRONT LCD GLASS SOURCE IC DIFFUSER SHEET GATE IC 3-6(No.YA169)
Page 97: Printed Wiring Board Parts List
PRINTED WIRING BOARD PARTS LIST VIDEO P.W. BOARD ASS'Y Ref No. Part No. Part Name Description Local (LCA90207-01B)(SMK-1601A) C854 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z Ref No. Part No. Part Name Description Local C855 NCB31HK-103X C CAPACITOR 0.01uF 50V K C856 NCB31HK-103X C CAPACITOR...
Page 98: Regulator P.w. Board Ass'y (Lca90150-06D)(Smk-9612A)
Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R808 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R1207 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J R809 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R1208 NRSA63J-103X MG RESISTOR 10kΩ...
Page 99: Power P.w. Board Ass'y (Lca90149-06F)(Smk-9602A)
Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C9816 NEHM0JM-107X E CAPACITOR 100uF 6.3V M D9541 FME-220A SB DIODE C9817 NEHM0JM-107X E CAPACITOR 100uF 6.3V M D9542 EU2-T3 SI DIODE D9543 FME-220A SB DIODE R9801 NRSA63J-0R0X...
Page 100: Msp P.w. Board Ass'y (Lca90209-01B)(Smk-0A601A)
MSP P.W. BOARD ASS'Y Ref No. Part No. Part Name Description Local (LCA90209-01B)(SMK-0A601A) R9224 NRS12BJ-394W MG RESISTOR 390kΩ 1/2W J Ref No. Part No. Part Name Description Local R9225 NRS12BJ-334W MG RESISTOR 330kΩ 1/2W J R9226 NRS12BJ-334W MG RESISTOR 330kΩ 1/2W J R9227 NRS12BJ-394W MG RESISTOR...
Page 101 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local Q136 DTC323TK-X DIGI TRANSISTOR C141 QETN1HM-106Z E CAPACITOR 10uF 50V M Q137 DTC323TK-X DIGI TRANSISTOR C142 QETN1HM-105Z E CAPACITOR 1uF 50V M Q138 2SA1037AK/QR/-X TRANSISTOR C143 NCB31HK-103X...
Page 102 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C6521 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z R137 NRSA63J-391X MG RESISTOR 390Ω 1/16W J C6522 QETN1HM-475Z E CAPACITOR 4.7uF 50V M R138 NRSA63J-823X MG RESISTOR 82kΩ...
Page 103: Front Sensor P.w. Board Ass'y (Lca90211-01B)(Smk-0L602A)
Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R344 NRSA63J-333X MG RESISTOR 33kΩ 1/16W J R6593 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J R401 NRSA63J-221X MG RESISTOR 220Ω 1/16W J R6594 NRSA63J-102X MG RESISTOR 1kΩ...
Page 104: Front Control P.w. Board Ass'y (Lca90210-01B)(Smk-0L601A)
FRONT CONTROL P.W. BOARD ASS'Y MI-COM & DIST P.W. BOARD ASS'Y (LCA90210-01B)(SMK-0L601A) (LCA10331-01E)(SMK-0Z601A) Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local Q8701 UN2212-X DIGI TRANSISTOR IC001 SDA6000-B12 128pin Q8702 UN2212-X DIGI TRANSISTOR IC002 S-80828CNNB-W IC003...
Page 105 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local Q758 2SC2412K/QR/-X TRANSISTOR C048 NEH71CM-476X E CAPACITOR 47uF 16V M Q759 2SC2412K/QR/-X TRANSISTOR C049 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z Q760 2SA1037AK/QR/-X TRANSISTOR C050 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z...
Page 106 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C713 NEH71CM-476X E CAPACITOR 47uF 16V M C1106 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z C714 NCB31HK-103X C CAPACITOR 0.01uF 50V K C1107 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z C715 NCF31CZ-104X...
Page 107 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C4026 NCB31EK-473X C CAPACITOR 0.047uF 25V K C4376 NCF31AZ-105X C CAPACITOR 1uF 10V Z C4027 NCB31EK-473X C CAPACITOR 0.047uF 25V K C4379 NDC31HJ-101X C CAPACITOR 100pF 50V J C4028 NCB31HK-102X...
Page 108 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C7613 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z R123 NRSA63J-682X MG RESISTOR 6.8kΩ 1/16W J C7614 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z R124 NRSA63J-101X MG RESISTOR 100Ω...
Page 109 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R422 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R771 NRSA63J-122X MG RESISTOR 1.2kΩ 1/16W J R425 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R773 NRSA63J-821X MG RESISTOR 820Ω...
Page 110 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R1273 NRZ0040-101X NET RESISTOR 100Ω 1/16W J x4 R4124 NRZ0040-101X NET RESISTOR 100Ω 1/16W J x4 R1274 NRZ0040-101X NET RESISTOR 100Ω 1/16W J x4 R4125 NRZ0040-101X NET RESISTOR...
Page 111 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R4374 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J R7311 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R4375 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R7312 NRSA63J-0R0X MG RESISTOR 0Ω...
Page 112 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R7895 NRSA63J-221X MG RESISTOR 220Ω 1/16W J L4102 NQR0413-003X FERRITE BEADS R7896 NRSA63J-221X MG RESISTOR 220Ω 1/16W J L4104 NQR0413-003X FERRITE BEADS R7897 NRSA63J-221X MG RESISTOR 220Ω...
Page 113: Remote Control Unit Parts List (Rm-C1808-1C)
REMOTE CONTROL UNIT PARTS LIST (RM-C1808-1C)  Ref No. Part No. Part Name Description Local 2AA070311 BATTERY COVER PACKING PARTS LIST  Ref.No. Part No. Part Name Description Local LC10006-034A PACKING CASE INNER SIDE GG20025-001A-H CORNER LABEL LC11697-001B CUSHION ASSY 4pcs 1set,INNER SIDE QPH02002005 POLY SHEET...
Page 114: Packing
PACKING 3-24(No.YA169)
Page 117 LT-26C31BC STANDARD CIRCUIT DIAGRAM NOTE ON USING CIRCUIT DIAGRAMS 1.SAFETY Type No indication : Ceramic capacitor The components identified by the symbol and shading are : Metalized mylar capacitor critical for safety. For continued safety replace safety ciritical : Polypropylene capacitor components only with manufactures recommended parts.
Page 118 CONTENTS SEMICONDUCTOR SHAPES ..............2-2 BLOCK DIAGRAM ..................2-3 CIRCUIT DIAGRAMS ..................2-5 TUNER PWB CIRCUIT DIAGRAM ......................2-5 MSP PWB CIRCUIT DIAGRAM ........................2-7 RECEIVER PWB CIRCUIT DIAGRAM ......................2-9 VIDEO PWB CIRCUIT DIAGRAM ......................2-13 MI-COM & DIST PWB CIRCUIT DIAGRAM ....................2-17 POWER PWB CIRCUIT DIAGRAM ......................
Page 119: Block Diagram
BLOCK DIAGRAM IC501 IC6401 MULTI VOLUME SOUND CONTROL MHP_L/R L/R OUT PROCESSOR HEADPHONE MAIN SPEAKER(L) IC6501 IC6641 AUDIO AUDIO L/R OUT CONTROL MAIN SPEAKER(R) TU001 MAIN SC1_OUT_L TV V1 MI-COM & DIST PWB U/V FRONTEND SC1_OUT_R S_L/S_R MAIN CV/Y MAIN CV/Y IC702 MAIN C MAIN C...
Page 120: Circuit Diagrams
CIRCUIT DIAGRAMS TUNER PWB CIRCUIT DIAGRAM SHEET1 TUNER PWB ASS'Y LCA90208-01B(SMK-0R601) NCF31AZ-105X C010 R005 R004 CN004 QGB2038J1-09 SI F M_SW0 M_SW1 VTV1 AFC1 L003 M_MONO NQL034K-100X C008 C009 1000 /6.3 MSP PWB SHEET 2 CN005 QGB2038J1-09 L002 NCB31HK-103X C006 NQL034K-100X SDA1 C007 SCL1...
Page 121: Msp Pwb Circuit Diagram
MSP PWB CIRCUIT DIAGRAM SHEET 2 RECEIVER PWB (1/2) SHEET 3 MSP PWB ASS'Y LCA90209-01B(SMK-0A601A) C536 C537 QENC1EM-106Z QENC1EM-106Z IC502 AN77L08-T C525 C526 C529 C530 .001 .001 C541 C542 C528 C527 .001 .001 SIF_GND R522 SIF_GND Q503 C524 DTC144EKA-X R516 QGB2038K1-09 C535 C531...
Page 122: Receiver Pwb Circuit Diagram
RECEIVER PWB CIRCUIT DIAGRAM (1/2) SHEET 3 R308 R310 L_SWMAI N C309 QNN0595-001 R316 NCB11CK-225X C312 D311 R306 C307 Q313 UN2110- X J401 D308 R312 Q311 MA111- X .0047 OPEN QETN1EM-476Z UN2226- X R313 C310 R314 NCB21CK-105X OPEN R309 Q314 QNN0595-001 R311 C311...
Page 123 RECEIVER PWB CIRCUIT DIAGRAM (2/2) SHEET 4 IC6101 AN77L12-T D6101 AU_12V OPEN C6101 K6103 C6103 C6102 OPEN AU_GND R6105 R6106 R6107 R6108 CN000F QGA2001C2-04V K6101 AU_VCC R6541 5.6K NQR0413-002X VREF IC6641 AU_D_VCC POWER PWB (2/2) TA2024ASE-X C6104 K6102 SHEET 19 D6541 C6541 1000p...
Page 124: Video Pwb Circuit Diagram
VIDEO PWB CIRCUIT DIAGRAM (1/2) SHEET 5 C830 C831 C832 C833 C834 C835 R820 R824 R828 R832 R836 R840 SRGB2/OTH 150K 150K 150K 150K 150K 150K SHEET 6 SRGB2/OTH R822 R826 R830 R834 R838 R842 CN0AE Q803 Q804 Q805 Q806 Q807 Q808 QGA1501C2-07V...
Page 125 VIDEO PWB CIRCUIT DIAGRAM (2/2) SHEET 6 RECEIVER PWB (1/2) SHEET 5 SHEET 3 CN00N QGA1501C2-07V VCC9A IC1202 SN74AHC2G08T-X AD_HD R1216 C1208 J1202 C1207 QNN0595-001 NCF11CZ-475X IC1201 TA1370FG-X IC1101 R1124 AN15851A-W NR_HD Q1101 C1101 R1215 2SC2412K/QR/-X TEXT_G NR_Y C1102 R1104 R1101 TEXT_B OPEN...
Page 126 MI-COM & DIST PWB CIRCUIT DIAGRAM (1/11) SHEET 7 CN00C1 CN00C2 QGA1501F2-07V QGA2001F2-05V R091 R093 MI-COM & DIST PWB ASS'Y(1/11) R094 R092 R143 OPEN SBD01 LCA10331-01E(SMK-0Z601A) SBO01 SHEET 15 VCC3A 2SA1022/BC/-X C058 TC7WH126FU-X R141 SMGND D006 SMRST OPEN IC007 OPEN RSA6.1J4-W R046 R048...
Page 127 MI-COM & DIST PWB CIRCUIT DIAGRAM (2/11) SHEET 8 C741 C742 C743 C744 C745 C746 VCC3D R731 R735 R739 R743 R710 R714 C1341 150K 150K 150K 150K 150K 150K R733 R737 R741 R745 R712 R721 R1341 Q712 Q713 Q714 Q715 Q716 Q711 SHEET 7...
Page 128: Mi-Com & Dist Pwb Circuit Diagram
MI-COM & DIST PWB CIRCUIT DIAGRAM (3/11) SHEET9 IC301 R1170H251B-X VCC5A VC2.5_1YC VCAVDYC L1002 LC1051 NQR0450-008X NQR0413-003X VC5YC NBE71CM-476X VCC9A R1003 C1004 C1005 C1006 L1004 C1007 C1003 NQR0413-003X NCB21AK-105X AGND C1001 C1002 NCB21CK-334X AGND AGND AGND LC1052 NQR0450-008X VCVINYC AGND AGND AGND L1001...
Page 129 MI-COM & DIST PWB CIRCUIT DIAGRAM (4/11) SHEET 10 SHEET 7 OSD_B SHEET 16 OSD_G VCC5A VCC9A VCC9AMAD LC1201 NEH91CM-476X EFP5 C1321 NQR0415-005X IC1205 VCC5D Q1201 Q1202 C1252 TC4053BF/N/-XE 2SC2412K/QR/-X 2SC2412K/QR/-X AGND LC1206 EFP5 C1322 R1209 R1201 C1202 NDC31HJ-120X C1251 C1201 C1206 NQR0415-005X...
Page 130 MI-COM & DIST PWB CIRCUIT DIAGRAM (5/11) SHEET 11 MI-COM & DIST PWB ASS'Y(5/11) LCA10331-01E(SMK-0Z601A) VCC9A VCC9ASAD L4025 EFP5 NQR0415-005X Q4002 AGND 2SA1022/BC/-X VCC3A VCC3D R4008 Q4001 C4008 R4011 R4047 2SC3837K/NP/-X 1.5k C4004 OPEN K4301 NCB31EK-393X R4046 YS_IN K4302 NQR0413-003X C4032 C4063 SHEET 10...
Page 131 MI-COM & DIST PWB CIRCUIT DIAGRAM (6/11) SHEET 12 C4356 C4355 C4362 R4343 C4354 0.47 IC4107 LP3964EMP-ADJ-X R4344 R4281 R4282 R4268 R4267 VCC2.5 RA122 RA122 RA122 RA122 VCC1.4B DQ103 DQ014 DQ100 DQ010 DQ104 DQ013 R4362 DQ101 DQ011 C4341 DQ28 C4353 R4270 R4269 R4279...
Page 132 MI-COM & DIST PWB CIRCUIT DIAGRAM (7/11) SHEET 13 SHEET 14 IC4203 R1170H151B-X VCC2.5 VCC3D NRSA63D-562X R4492 R4493 R4494 R4495 R4496 R4497 R4498 R4499 R4474 RA101 RA101 RA101 RA101 RA101 RA101 RA101 RA101 5.6k R4476 OPEN R4473 C4424 L4201 R4475 NCB10JK-106X C4412 DGND...
Page 133 MI-COM & DIST PWB CIRCUIT DIAGRAM (8/11) SHEET 14 DOSDR0 DOSDR0 DOSDR1 DOSDR1 DOSDR2 DOSDR2 DOSDR3 DOSDR3 RGBHD DOSDR4 RGBHD DOSDR4 DOSDR5 RGBCLK DOSDR5 RGBCLK VCC3D DOSDR6 DOSDR6 DOSDR7 DOSDR7 AJR0 VCC3D AJR0 DOSDB0 VCC2.5PDP AJR1 DOSDB0 AJR1 DOSDB1 NEH90JM-107X AJR2 DOSDB1 AJR2...
Page 134 MI-COM & DIST PWB CIRCUIT DIAGRAM (9/11) SHEET 15 VCC5STB Y7801 OPEN VCC3D Y7802 NRSA63J-0R0X R7822 DSDHD SHEET 13, 14 DSDHD R7823 DSDVD SHEET 16 DSDVD K7801 NQR0351-001X AGND SMGND K7804 SMRST SMRST NQR0351-001X VCC5/3 DGND SMGND VCC5/3 NCB11AK-106X R7854 R7903 R7926 R7928...
Page 135 MI-COM & DIST PWB CIRCUIT DIAGRAM (10/11) SHEET 16 VCC3A K7303 R7333 NQR0351-003X R7332 C7335 C7348 L7305 NQL092K-R10X OPEN R7342 L7304 NQL092K-R10X RGB_PWM OSD_B L7303 NQL092K-R10X L7306 NQL092K-2R2X C7336 RGB_BLK C7347 C7343 C7342 OPEN C7341 Q7301 2SA1022/BC/-X R7335 SHEET 14 RGBCLK C7344 C7345...
Page 136 MI-COM & DIST PWB CIRCUIT DIAGRAM (11/11) SHEET 17 LB_PRO STB_5V LB_POW D1903 OPEN SDA0P SDA0P SHEET 10 SCL0P SCL0P IC1901 CN000B QGA1501C2-13V PQ070XH02Z-W LC110 OPEN IC1903 R1906 OPEN R1902 2.2K R1901 NRSA63D-222X 2.2K AGND R1907 OPEN NRSA63D-222X D1901 C1913 D1FS4-X /6.3 C1902...
Page 137: Power Pwb Circuit Diagram
POWER PWB CIRCUIT DIAGRAM (1/2) SHEET 18 R9001 QRZ9046-105Z F9001 LF9001 C9002 LF9002 POWER CORD QMF51D2-6R3-J1 QQR1281-004 QQR1281-004 QFZ9075-105 CN000D OPEN CN00PW NOT USE L9201 QQR1399-001 QGA7901C1-02 VA9001 LF9003 H9211 ERZV10V621CS QQR1376-001 LC32378-001A C9001 R9201 QFZ9075-225 C9204 CP9211 .0022 QRZ0121-200 QMFZ043-5R0Z-J1 QCZ9082-222Z R9202...
Page 138 POWER PWB CIRCUIT DIAGRAM (2/2) SHEET 19 LCD PANEL LCD PANEL (TOP INVERTER UNIT) (BOTTOM INVERTER UNIT) CN000P CN000Q GND2 R9605 R9606 CN000Y OPEN OPEN POWER PWB ASS'Y (2/2) Y9547 D9602 COOLING FAN OPEN LCA90149-06F(SMK-9602A) H9541 IC9601 OPEN OPEN CN000Z LC32377-001A C9603 OPEN...
Page 139 REGULATOR PWB CIRCUIT DIAGRAM SHEET 20 REGULATOR PWB ASS'Y LCA90150-06D(SMK-9612A) IC9801 SI-8090JD-W R9807 4.7K C9815 R9808 L9802 NEH91CM-476X GND2 NQL63EM-101X L9801 D9802 OPEN C9802 R9802 C9804 R9805 R9809 OPEN GND2 OPEN OPEN C9803 MA111-X 1/2W NBZ0010-396X R9801 D9801 D9809 EC30HA03L-X PTZ11B-X K9801 R9803...
Page 140 FRONT CONTROL PWB CIRCUIT DIAGRAM SHEET 21 FRONT CONTROL PWB ASS'Y CN300T QGA1501C2-10W LCA90210-01B(SMK-0L601A) S8707 QSW0797-001 S8703 S8702 S8701 MI-COM & DIST PWB (1/11) SHEET 7 QSW0797-001 QSW0797-001 QSW0797-001 R8701 R8702 5.6k CN3003 S8706 S8705 S8704 QGB2542K1-08 QSW0797-001 QSW0797-001 QSW0797-001 FRONT SENSOR PWB SHEET 22 R8703...
Page 141: Front Sensor Pwb Circuit Diagram
FRONT SENSOR PWB CIRCUIT DIAGRAM SHEET 22 TPS818 IC8751 CN8003 OPEN QGB2542J1-08 FRONT CONTROL PWB SHEET 21 R8751 OPEN R8754 OPEN R8752 OPEN R8753 C8751 OPEN OPEN R8759 IC8752 GP1UM281QK R8756 STB5V R8755 OPEN C8753 C8752 OPEN R8758 R8757 OPEN FRONT SENSOR PWB ASS'Y LCA90211-01B(SMK-0L602A) NOTES) 1.
Page 142: Pattern Diagrams
PATTERN DIAGRAMS RECEIVER PWB PATTERN [SOLDER SIDE] J301 J301 D301 D301 J302 J302 J401 J401 J101 J101 J201 J201 C223 C223 R115 R115 C191 C191 C221 C221 R302 R302 R308 R308 D101 D101 D131 D131 Q131 Q131 D308 D308 R309 R309 D206 D206...
Page 143: Msp Pwb Pattern
MSP PWB PATTERN [SOLDER SIDE] VIDEO PWB PATTERN [SOLDER SIDE] R1216 R1208 EC3010 EC3011 R1212 C534 Y502 R1207 L505 R522 L504 R1211 EC3009 C527 C543 C536 C533 C528 C525 C813 C822 C537 C529 C535 C523 C526 C532 C530 R516 C1202 C818 C531 C522...
Page 144: Power Pwb Pattern
POWER PWB PATTERN [SOLDER SIDE] R9545 R9604 Y9101 R9514 H9211 D9511 C9510 Q9501 C9198 C9199 R9625 C9551 H9541 R9613 C9511 C9554 D9510 D9506 D9502 R9512 D9509 PC9541 R9509 C9509 R9518 D9508 C9550 IC9603 D9501 D9513 R9611 R9608 R9610 K9505 R9609 K9501 C9604 D9602...
Page 145 POWER PWB PATTERN [PARTS SIDE] Y9101 H9211 H9541 R9545 Q9501 C9198 Y9547 C9199 Y9548 C9511 C9602 R9512 D9502 C9510 C9606 C9551 C9509 C9550 R9509 Y9546 Y9550 D9501 K9501 K9505 K9502 K9504 R9541 C9545 C9503 R9505 CP9541 R9506 D9541 C9544 C9504 R9502 R9501 C9541...
Page 146: Mi-Com & Dist Pwb Pattern
MI-COM & DIST PWB PATTERN [SOLDER SIDE] MI-COM & DIST PWB PATTERN [PARTS SIDE] C7612 Q7601 C7613 C404 R7628 C7601 R7622 R7621 RA7302 C463 R7302 R7629 C770 C796 C769 IC7301 RA7301 L753 R774 R773 R4469 R4427 C4532 R4511 R4471 R4431 R4512 R4531 C4531...
Page 147: Regulator Pwb Pattern
REGULATOR PWB PATTERN [SOLDER SIDE] FRONT CONTROL PWB PATTERN [SOLDER SIDE] R9820 D9804 Q9802 D9805 IC9802 C9802 S8707 S8701 S8705 R9814 C9804 S8706 D9808 R8713 C9806 C9808 R9805 R9829 R9812 R8702 S8704 S8703 S8702 R9817 R9816 D9807 R6417 R8701 C6416 Q9803 CN3003 D9803...
Page 148: Voltage Charts
VOLTAGE CHARTS <MI-COM & DIST> [P.2-17 - P.2-18] [P.2-19 - P.2-20] [P.2-21 - P.2-22] [P.2-23 - P.2-24] [P.2-25 - P.2-26] [P.2-27 - P.2-28] [P.2-31 - P.2-32] [P.2-33 - P.2-34] [P.2-35 - P.2-36] MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE...
Page 149 <TUNER> <RECEIVER> <POWER> [P.2-5 - P.2-6] [P.2-9 - P.2-12] [ P.2-39 - P.2-42 ] MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE DC ( V ) DC ( V ) DC ( V ) DC ( V ) DC ( V ) DC ( V ) DC ( V )
Page 150: Waveforms
WAVEFORMS -TUNER PWB- -RECEIVER PWB- [P.2-5 - P.2-6] [ P.2-9 - P.2-10 ] TU001-16 IC101-15 IC101-41 IC101-44 IC101-47 IC101-49 IC101-53 IC101-56 IC101-58 IC101-63 0.9Vp-p 1.0Vp-p 2.0Vp-p 2.0Vp-p 1.5Vp-p 2.2Vp-p 2.2Vp-p 2.2Vp-p 1.5Vp-p 0.9Vp-p -VIDEO PWB- [P.2-13 - P.2-14] IC801-1 IC801-3 IC801-4 IC801-5 IC801-7...
Page 152 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.YA169) Printed in Japan...

JVC InteriArt LT-26C31BC Service Manual

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