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JVC LT-26WX84 Service Manual
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JVC LT-26WX84 Service Manual

JVC LT-26WX84 Service Manual

Lcd flat television
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Download this manual See also: Service Manual, User Manual
SERVICE MANUAL
2004
3
YA089
TV CATV VCR DVD
MULTI SCREEN
SPLIT
FREEZE
SWAP
INPUT 1
V1
INPUT 2
V2
INPUT 3
V3
INPUT 4
V4
100+
THEATER
DIGITAL-IN
PRO
D-IN
SLEEP TIMER DISPLAY SOUND
MUTING
VOL
MENU
VCR CHANNEL
PREV NEXT
REW
REC
OPEN CLOSE
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-54
LCD FLAT TELEVISION
LT-26WX84
POWER
ASPECT
INDEX
SELECT
1
2
3
4
5
6
7
8
9
RETURN+
0
TV
NATURAL
VIDEO
CINEMA
STATUS
LIGHT
+
C.C.
C.C.
CH
VOL
OK
CH
BACK
VCR DVD
POWER
TV VCR
PLAY
FF
STOP
PAUSE
STILL PAUSE
RM-C13G

TABLE OF CONTENTS

COPYRIGHT © 2004 VICTOR COMPANY OF JAPAN, LIMITED
/K
BASIC CHASSIS
SB5
No.YA089
2004/3

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Summary of Contents for JVC LT-26WX84

  • Page 1: Table Of Contents

    SERVICE MANUAL LCD FLAT TELEVISION YA089 2004 LT-26WX84 BASIC CHASSIS POWER TV CATV VCR DVD ASPECT MULTI SCREEN SPLIT INDEX FREEZE SWAP SELECT INPUT 1 INPUT 2 INPUT 3 INPUT 4 RETURN+ 100+ THEATER NATURAL VIDEO DIGITAL-IN CINEMA STATUS D-IN...
  • Page 2 SPECIFICATION Items Contents Dimensions ( W × H × D ) 70.3cm × 56.0cm × 26.0cm (Included stand) 70.3cm × 49.1cm × 9.4cm (TV only) Mass 22.0kg (Included stand) 19.2kg (TV only) Power Input AC220V , 60Hz Power Consumption 155W (Max) TV RF System CCIR (M) Color System...

  • Page 3: Precaution

    SECTION 1 PRECAUTION SAFETY PRECAUTIONS (1) The design of this product contains special hardware, (7) Isolation Check (Safety for Electrical Shock Hazard) many circuits and components specially for safety After re-assembling the product, always perform an purposes. For continued protection, no changes should be isolation check on the exposed metal parts of the cabinet made to the original design unless authorized in writing by (antenna terminals, video/audio input and output terminals,...
  • Page 4 INSTALLATION 1.2.1 HEAT DISSIPATION 1.2.3 INSTALLATION REQUIREMENTS If the heat dissipation vent behind this unit is blocked, cooling To ensure safety in an emergency such as an earthquake, and efficiency may deteriorate and temperature inside the unit will to prevent accidents, ensure that measures are taken to prevent rise.
  • Page 5 HANDLING LCD PANEL 1.3.1 PRECAUTIONS FOR TRANSPORTATION 1.3.3 PRECAUTIONS FOR REPLACEMENT OF EXTERIOR When transporting the unit, pressure exerted on the internal LCD PARTS panel due to improper handling (such as tossing and dropping) Take note of the following when replacing exterior parts (REAR may cause damages even when the unit is carefully packed.

  • Page 6: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS FEATURES • New chassis design enable use of an interactive on screen control. • MOTION COMPENSATION : With this function, the seamless reproduction of dynamic motion on the screen has been realized. • Bullet-in 3 dimension Y/C separate circuit. •...
  • Page 7 2.2.1.2 SPECIFICATIONS The following table shows the specifications of this unit. Item Specifications Remarks Maximum dimensions ( W × H × D ) 62.7cm × 38.9cm × 4.9cm Weight 8.0kg Diagonal : 66cm (H:33.9cm × V : 56.6cm) Effective screen size 26V type Aspect ratio 15:9...
  • Page 8 2.2.2 MAIN MICRO COMPUTER (CPU) FUNCTION Pin No. Pin name Function BS_RXD Not used MICON_V Vertical sync for OSD / CLOSED CAPTION LB_PRO Low B protection detect [Detection : H] Not used /RST Reset [Reset : L] HDMI_INT Not used /TEST 3.3V OSD_YS...
  • Page 9 Pin No. Pin name Function SBD01 Port for writing on board / Communication (XTD) for SUB CPU SBT1 Port for writing on board / Communication (RTD) for SUB CPU HP_VOL Headpone volume control (0V-3.3V) /BS_RESET Not used HDMI_ASW Not used BS1.5CTL Not used ODU_OUT...
  • Page 10 2.2.3 SUB MICRO COMPUTER (CPU) FUNCTION Pin No. Pin name Function (SYSTEM0) (SYSTEM3) AVCC Not used Not used 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 11 Pin No. Pin name Function Port for writing on board (PROTECTOR0) Not used Not used RXD2 Port for communication (Main cpu) TXD2 Port for communication (Main cpu) Not used (ACTIVE) Not used Vertical sync (REC_DET) Not used (PSS) Not used (ALARM) Not used (SYSTEM2)

  • Page 12: Disassembly

    SECTION 3 DISASSEMBLY DISASSEMBLY PROCEDURE NOTE: Since this model adopts a layer structure, follow the procedure below in disassembling this model. Be careful enough not to damage or scratch parts. 3.1.1 REMOVING THE STAND (1) Remove the 2 screws [A], and remove the STAND COVER.
  • Page 13 3.1.3 REMOVING THE FAN BRACKET / REGULATOR PWB / POWER CORD • Remove the STAND. • Remove the REAR COVER. FAN BRACKET (1) Pull out the wire of COOLING FAN (the connector [Y] of the POWER PWB). (2) Remove the 5 screws [F], and remove the FAN BRACKET. COOLING (3) Remove the REGULATOR PWB.
  • Page 14 3.1.6 REMOVING THE VIDEO PWB / DIGITAL INPUT MODULE PWB • Remove the STAND. • Remove the REAR COVER. JACK BASE (1) Remove the 1 screw [N] and 1 screw [P]. Then, remove the VIDEO PWB JACK BASE. DIGITAL INPUT MODULE (2) Remove the 4 screws [Q], and remove the VIDEO PWB.
  • Page 15 3.1.8 REMOVING THE POWER PWB • Remove the STAND. • Remove the REAR COVER. POWER PWB • Remove the FAN BRACKET. • Remove the POWER CORD. • Remove the RECEIVER PWB. (1) Remove the 4 screws [X], and remove the AV JACK AV JACK BRACKET.
  • Page 16 3.1.10 REMOVING THE LCD PANEL UNIT NOTE: The LCD PANEL is fixed to the FRONT PANEL (at the back side) by using double-side adhesive tapes. To remove the LCD PANEL, remove the adhesive tape on the FRONT PAN- LCD PANEL EL slowly.
  • Page 17 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 18 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 19 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 MEMORY IC REPLACEMENT PROCEDURE 3.2.2 SERVICE MENU SETTING ITEMS 1.
  • Page 20 3.2.3 SETTINGS OF FACTORY SHIPMENT 3.2.3.1 BUTTON OPERATION 3.2.3.2 REMOTE CONTROL DIRECT OPERATION Setting item Setting position Setting item Setting position POWER INPUT INPUT CHANNEL CABLE-02 CHANNEL CABLE-02 VOLUME VOLUME MUTING DISPLAY SOUND A.H.S OFF BBE ON A.H.B ON ASPECT NTSC, 525i,525p PANORAMA 750p,1125i FULL OFF TIMER...
  • Page 21 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 ADJUSTMENT PREPARATION (1) There are 2 ways of adjusting this TV : One is with the MEASURING INSTRUMENT AND FIXTURES REMOTE CONTROL UNIT and the other is the • DC voltmeter (or digital voltmeter) conventional method using adjustment parts and •...
  • Page 23 ADJUSTMENT LOCATION & WIRING (No.YA089)1-23...
  • Page 24 BASIC OPERATION OF SERVICE MODE DO NOT ADJUST MAIN MENU 4.MEMORY SETUP ADDRESS(H) 0000 1.PICTURE/SOUND 7.PANEL 2.YC SEP 8.PP 3.WHITE BALANCE 9.IP 4.MEMORY SETUP 0.HDMI 5.RF AFC 6.DD/CM 5.RF AFC TOO HIGH GOOD TOO LOW TUNER MAIN FINE 1.PICTURE/SOUND 6.DD/CM NTSC CINE ST L FL MUTE NTSC CINE ST L FL MUTE VOLUME(+/-) key...
  • Page 25 4.5.1 TOOL OF SERVICE MODE OPERATION Operate the SERVICE MODE with the REMOTE CONTROL UNIT. 4.5.2 SERVICE MODE ITEMS In general, basic setting (adjustments) items or verifications are performed in the SERVICE MODE. 1.PICTURE / SOUND This sets the setting values of the VIDEO, AUDIO and DEFLECTION circuits. 2.YC SEP This is used when the YC separation circuit is adjusted.
  • Page 26 (3) VIDEO STATUS 2. YC SEP (3D Y/C separation setting) [Do not change settings of items that are not included in the : STANDARD "ADJUSTMENT PROCEDURE" section. ] : DYNAMIC Sets output data to the 3D Y/C separation circuit. : THEATER •...
  • Page 27 INITIAL SETTING VALUES IN THE SERVICE MODE • Perform fine-tuning based on the "initial values" using the remote control when in the Service mode. • The "initial values" serve only as an indication rough standard and therefore the values with which optimal display can be achieved may be different from the default values.
  • Page 28 Setting value Item Variable Item NTSC 525i 525p 750p/1125i range STANDARD THEATER STANDARD THEATER STANDARD THEATER STANDARD THEATER S20 OF CUTR -127~128 +004 +004 +004 S21 CUTG 000~255 S22 OF CUTG -127~128 S23 CUTB 000~255 S24 OF CUTB -127~128 S25 CUTR 000~001 S26 CUTG 000~001...
  • Page 29 Setting value Item Variable Item MULTI-SCREEN ASPECT range SPLIT REGULAR S60 BHEND 000~015 Data of the setting value is selected in the order of "SPLIT" and "REGULAR". Setting value Item Variable Item NTSC 525i/525p 750p/1125i range STANDARD THEATER STANDARD THEATER STANDARD THEATER S61 PLPOL2 000~001 S62 PLEV2...
  • Page 30 Item Variable Item Variable Item Setting value Item Setting value range range (Not display) 000~001 (Not display) 000~255 (Not display) 000~001 (Not display) 000~255 (Not display) 000~001 (Not display) 000~255 (Not display) 000~001 (Not display) 000~255 (Not display) 000~001 F05 CATVMAX 000~001 (Not display) 000~001...
  • Page 31 Setting value Item Variable Item range NTSC 525i 525p 750p 1125i (Not display) 000~003 (Not display) 000~001 (Not display) 000~063 Item Variable Item Setting value range (Not display) 000~001 (Not display) 000~007 F46 OUT LV. 000~255 F47 LIMIT B 000~255 F48 LIMIT A 000~255 (Not display)
  • Page 32 4.6.2 [2.YC SEP] NOTE : Setting Item No. Item Variable range Initial setting value is reference value at following condition. value INPUT SIGNAL : NTSC YCM039 (Not display) 000~127 ASPECT : FULL YCM040 (Not display) 000~003 MULTI-SCREEN : SINGLE VIDEO STATUS : STANDARD YCM041 (Not display)
  • Page 33 Setting Setting Item No. Item Variable range Item No. Item Variable range value value YCM083 (Not display) 000~001 YCM128 (Not display) 000~001 YCM084 (Not display) 000~063 YCM129 (Not display) 000~001 YCM085 (Not display) 000~001 YCM130 (Not display) 000~003 YCM086 (Not display) 000~001 YCM131 (Not display)
  • Page 34 Setting Setting Item No. Item Variable range Item No. Item Variable range value value YCM173 (Not display) 000~007 YCS031 (Not display) 000~001 YCM174 (Not display) 000~255 YCS032 (Not display) 000~003 YCM175 (Not display) 000~001 YCS033 (Not display) 000~001 YCM176 (Not display) 000~001 YCS034 (Not display)
  • Page 35 4.6.3 [3.WHITE BALANCE] Setting Item No. Item Variable range value NOTE : Initial setting value is reference value at following condition. YCS076 (Not display) 000~001 INPUT SIGNAL : NTSC YCS077 (Not display) 000~001 ASPECT : FULL YCS078 (Not display) 000~001 MULTI-SCREEN : SINGLE YCS079...
  • Page 36 Setting Setting Item No. Item Variable range Item No. Item Variable range value value DDT30 (Not display) 000~001 CMT39 (Not display) 000~255 DDT31 (Not display) 000~007 CMT40 (Not display) -128~+127 DDT32 (Not display) 000~255 CMT41 (Not display) -128~+127 +010 DDT33 (Not display) 000~255 CMT42...
  • Page 37 Setting Setting Item No. Item Variable range Item No. Item Variable range value value ADM003 (Not display) 000~003 PPB002 (Not display) 000~255 ADM004 (Not display) 000~007 PPB003 (Not display) 000~255 ADM005 (Not display) 000~01F PPB004 (Not display) 000~031 ADM006 (Not display) 000~0FF PPB005 (Not display)
  • Page 38 Setting Setting Item No. Item Variable range Item No. Item Variable range value value PPC007 (Not display) 000~001 IPA008 (Not display) 000~063 PPC008 (Not display) 000~001 IPA009 (Not display) 000~063 IPA010 (Not display) 000~063 Setting Item No. Item Variable range IPA011 (Not display) 000~063...
  • Page 39 Setting Setting Item No. Item Variable range Item No. Item Variable range value value IPA053 (Not display) 000~001 IPA098 (Not display) 000~255 IPA054 (Not display) 000~001 IPA099 (Not display) 000~015 IPA055 (Not display) 000~063 IPA100 (Not display) 000~255 IPA056 (Not display) 000~003 IPA101 (Not display)
  • Page 40 Setting Setting Item No. Item Variable range Item No. Item Variable range value value IPB021 (Not display) 000~015 IPB066 (Not display) 000~001 IPB022 (Not display) 000~255 IPB067 (Not display) 000~015 IPB023 (Not display) 000~015 IPB068 (Not display) 000~015 IPB024 (Not display) 000~255 IPB069 (Not display)
  • Page 41 Setting Setting Item No. Item Variable range Item No. Item Variable range value value IPC030 (Not display) 000~001 IPE001 (Not display) 000~255 IPC031 (Not display) 000~001 IPE002 (Not display) 000~255 IPC032 (Not display) 000~001 IPE003 (Not display) 000~255 IPC033 (Not display) 000~001 IPE004 (Not display)
  • Page 42 Setting Setting Item No. Item Variable range Item No. Item Variable range value value HDM028 (Not display) 000~003 HDM073 (Not display) 000~001 HDM029 (Not display) 000~255 HDM074 (Not display) 000~031 HDM030 (Not display) 000~003 HDM075 (Not display) 000~001 HDM031 (Not display) 000~255 HDM076 (Not display)
  • Page 43 Setting Setting Item No. Item Variable range Item No. Item Variable range value value RHD036 (Not display) RHD081 (Not display) RHD037 (Not display) RHD082 (Not display) RHD038 (Not display) RHD083 (Not display) RHD039 (Not display) RHD084 (Not display) RHD040 (Not display) RHD085 (Not display) RHD041...
  • Page 44 Setting Item No. Item Variable range value RHD126 (Not display) RHD127 (Not display) RHD128 (Not display) RHD129 (Not display) RHD130 (Not display) RHD131 (Not display) RHD132 (Not display) RHD133 (Not display) RHD134 (Not display) RHD135 (Not display) RHD136 (Not display) RHD137 (Not display) RHD138...
  • Page 45 ADJUSTMENT PROCEDURE 4.7.1 SETTING BEFORE ADJUSTMENT (1) Check the following settings before adjustment. Item setting value contents R CUT OFF G CUT OFF B CUT OFF (2) Take note of initial values in the following table before adjustment. Then, set the values to adjustment setting values shown in the following table.
  • Page 46 4.7.2 VIDEO CIRCUIT Mesuring Item Test point Adjustment part Description instrument COMPONENT Remote control [8.PP] (1) Input 525i signal that shows brightness gradation INPUT BLACK unit ADM013: (NO DISPLAY) with 0% black into a component input terminal. LEVEL (G offset) (2) Set “VIDEO STATUS”...
  • Page 47 Mesuring Item Test point Adjustment part Description instrument COMPONENT Remote control [8.PP] (1) Input 525i 100% all-white signal into a component INPUT A-D unit ADM010: (NO DISPLAY) input terminal. CONVERTER (G GAIN) (2) Set "VIDEO STATUS" to STANDARD. GAIN Signal generator (3) Set "ASPECT"...
  • Page 48 Mesuring Item Test point Adjustment part Description instrument COMPONENT Remote control [8.PP] (1) Input 525i component 30% all-white signal into a INPUT A-D unit ADM012: (NO DISPLAY) component input terminal. CONVERTER (R OFFSET) (2) Set "VIDEO STATUS" to STANDARD. OFFSET Signal generator ADM014: (NO DISPLAY) (3) Set "ASPECT"...
  • Page 49 Mesuring Item Test point Adjustment part Description instrument COMPOSITE Remote control [2. YC SEP] (1) Input NTSC signal that shows brightness gradation INPUT BLACK unit YCM131: (NO DISPLAY) with 0% black. LEVEL (BRIGHTNESS) (2) Set "VIDEO STATUS" to STANDARD. Signal generator (3) Set "ASPECT"...
  • Page 50 Mesuring Item Test point Adjustment part Description instrument COMPOSITE Remote control [2. YC SEP] (1) Input a signal that shows brightness gradation with INPUT A-D unit YCM132: (NO DISPLAY) 75% white. CONVERTER (CONTRAST) (2) Set "VIDEO STATUS" to STANDARD. OFFSET Signal generator (3) Set "ASPECT"...
  • Page 51 Mesuring Item Test point Adjustment part Description instrument SUB-SCREEN Remote control [8. PP] (1) Input NTSC signal that shows brightness gradation BLACK unit ADM013: (NO DISPLAY) with 0% black into both the right and the left screen. LEVEL (G offset) (2) Set "VIDEO STATUS"...
  • Page 52 Mesuring Item Test point Adjustment part Description instrument SUB-SCREEN Remote control [8. PP] (1) Input NTSC signal that shows brightness gradation unit ADM010: (NO DISPLAY) with 75% white into both the right and the left CONVERTER (G GAIN) screen. GAIN Signal generator (2) Set "VIDEO STATUS"...
  • Page 53 Mesuring Item Test point Adjustment part Description instrument WHITE Remote control [1. PICTURE/SOUND] (1) Input NTSC 75% all-white signal. BALANCE unit S13: RDRV (R DRIVE) (2) Set "VIDEO STATUS" to STANDARD. (HIGHLIGHT) S15: GDRV (G DRIVE) (3) Set "ASPECT" to FULL. Signal generator S17: BDRV (B DRIVE) (4) Select "COLOR TEMPERATURE"...

  • Page 54: Troubleshooting

    SECTION 5 TROUBLESHOOTING SELF-DIAGNOSIS FEATURE 5.1.1 OUTLINE TEST MODE This unit comes with the "Self-diagnosis" feature, which checks the operational state of the circuit and displays/saves it during TEST MODE failure.Diagnosis is performed when power is turned on, and information input to the main microcomputer is monitored at all 1.
  • Page 55 5.1.6 DETAILS Self-diagnosis is performed for the following items: • PAGE 1 Diagnosis Item Display Description of detection Means of detection signal (line) LOW B LINE Was Low B line short protector activated? PROTECTOR Detection starts 3 seconds upon power on SHORT No.
  • Page 56 5.1.7 DISPLAY METHOD WHEN RASTER IS NOT AVAILABLE When raster is not displayed due to failure of the set, the POWER LED light will flash to indicate the ailure mode. Trigger for forced shutdown of power is stored and displayed. Trigger of error Display LED flash cycle of display unit...
  • Page 57 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.YA089) Printed in Japan...

  • Page 58: 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 59 CONTENTS USING P.W. BOARD & REMOTE CONTROL UNIT ....................3-2 EXPLODED VIEW PARTS LIST ..........................3-3 EXPLODED VIEW ..............................3-4 PRINTED WIRING BOARD PARTS LIST VIDEO P.W. BOARD ASS'Y (LCA90152-03C)(SSB-1086A) ................3-7 POWER P.W. BOARD ASS'Y (LCA90149-03F)(SSB-9086A) ................3-9 REGULATOR P.W. BOARD ASS'Y (LCA90150-03D)(SSB-9186A) ............... 3-10 RECEIVER P.W.

  • Page 60: Exploded View Parts List

    SP01/SP02(x2) LC21339-001A-HK DUCT BASE (x2) LC21340-001B-HK DUCT COVER (x2)  129 LC11623-002B F PANEL ASSY Inc.No.129A-129B 129A CM48006-010-C JVC MARK 129B LC21325-001D PUNCHING SHEET  130 LJ96-01100A BACKLIGHT UNIT  200 LCA90182-01B RECEIVER PWB  201 LCA90150-03D REGULATOR PWB  202...

  • Page 61: Exploded View

    EXPLODED VIEW < OPERATION SHEET (REAR) > 109A 106B 106A 109B 109C 109D FAN BRACKET INSULATOR 118A 3-4(No.YA089)
  • Page 62 EARTH PLATE MAIN PWB BRACKET RECIEVER PWB BRACKET CHASSIS BASE CENTER FRAME RIGHT FRAME LEFT FRAME < FRONT PANEL ASS'Y > BOTTOM FRAME TOP FRAME 129B 129A (No.YA089)3-5...
  • Page 63 CONTROL PWB COVER INVERTER PWB COVER FRONT MAIN CHASSIS LCD GLASS SOURCE IC DIFFUSER SHEET GATE IC 3-6(No.YA089)

  • Page 64: Printed Wiring Board Parts List

    PRINTED WIRING BOARD PARTS LIST VIDEO P.W. BOARD ASS'Y Ref No. Part No. Part Name Description Local (LCA90152-03C)(SSB-1086A) C3006 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z Ref No. Part No. Part Name Description Local C3007 NCB31AK-334X C CAPACITOR 0.33uF 10V K C3008 NDC31HJ-151X C CAPACITOR...
  • Page 65 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C3510 NDC31HJ-150X C CAPACITOR 15pF 50V J R3039 NRSA63J-101X MG RESISTOR 100Ω 1/16W J C3512 NCF11CZ-475X C CAPACITOR 4.7uF 16V Z R3040 NRSA63J-101X MG RESISTOR 100Ω...

  • Page 66: Power P.w. Board Ass'y (Lca90149-03F)(Ssb-9086A)

    Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local L3502 NQL092K-6R8X P COIL 6.8uH K C9102 QCZ9082-472Z C CAPACITOR 4700pF AC250V M L3503 NQL092K-6R8X P COIL 6.8uH K QCZ9082-472Z C CAPACITOR 4700pF AC250V M C9103 C9111 QEHQ2GM-226...

  • Page 67: Regulator P.w. Board Ass'y (Lca90150-03D)(Ssb-9186A)

    REGULATOR P.W. BOARD ASS'Y Ref No. Part No. Part Name Description Local (LCA90150-03D)(SSB-9186A) R9507 QRM059J-R15 MP RESISTOR 0.15Ω 5W J Ref No. Part No. Part Name Description Local R9508 QRT02EJ-1R5X MF RESISTOR 1.5Ω 2W J R9509 QRZ9009-1R5 FUSI RESISTOR 1.5Ω 1/2W J R9512 QRK126J-152X UNF C RESISTOR...
  • Page 68 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local IC6101 AN77L12-T C1146 QETN1HM-105Z E CAPACITOR 1uF 50V M IC6401 TA8119P C1147 QETN1HM-475Z E CAPACITOR 4.7uF 50V M IC6501 NJW1137M-W C1148 QETN1HM-106Z E CAPACITOR 10uF 50V M IC6531 RC4558D-X...
  • Page 69 Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local C6512 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z R1150 NRSA63F-623X MG RESISTOR 62kΩ 1/16W F C6513 QETN1HM-225Z E CAPACITOR 2.2uF 50V M R1152 NRSA63J-332X MG RESISTOR 3.3kΩ...

  • Page 70: Front Sensor Sw P.w. Board Ass'y (Lca90155-03B)(Ssb-0L286A)

    Ref No. Part No. Part Name Description Local Ref No. Part No. Part Name Description Local R6404 NRSA63J-822X MG RESISTOR 8.2kΩ 1/16W J R6734 NRSA63J-561X MG RESISTOR 560Ω 1/16W J R6406 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J R6735 NRSA63J-561X MG RESISTOR 560Ω...

  • Page 71: Mi-Com & Dist Module P.w. Board Ass'y (Lca10291-06A)(Ssb-0D098A)

    Ref No. Part No. Part Name Description Local R8703 NRSA63J-562X MG RESISTOR 5.6kΩ 1/16W J R8704 NRSA63J-153X MG RESISTOR 15kΩ 1/16W J R8712 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J R8713 NRSA63J-222X MG RESISTOR 2.2kΩ 1/16W J R8714 NRSA63J-223X MG RESISTOR 22kΩ...

  • Page 72: Packing

    PACKING PACKING PARTS LIST  Ref.No. Part No. Part Name Description Local LC10006-027C PACKING CASE GG20025-001A-H CORNER LABEL (x2) LC21411-001A CUSHION LC11697-001B CUSHION ASSY 4pcs in 1set LC41553-002A TOP PAD LC41664-001A SET COVER CP30974-005 POLY BAG RM-C13G-1H REMOCON UNIT Inc.POLY BAG LCT1623-001A CAUTION SHEET QPH02002005...
  • Page 73 SCHEMATIC DIAGRAMS LCD FLAT TELEVISION YA089 2004 LT-26WX84 CD-ROM No.SML200404 BASIC CHASSIS TV CATV VCR DVD POWER ASPECT MULTI SCREEN SPLIT INDEX FREEZE SWAP SELECT INPUT 1 INPUT 2 INPUT 3 INPUT 4 RETURN+ 100+ THEATER NATURAL VIDEO DIGITAL-IN CINEMA...
  • Page 75 LT-26WX84 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 76 CONTENTS SEMICONDUCTOR SHAPES ..............2-2 BLOCK DIAGRAM ..................2-3 CIRCUIT DIAGRAMS ..................2-5 RECEIVER PWB CIRCUIT DIAGRAM ......................2-5 VIDEO PWB CIRCUIT DIAGRAM ......................2-11 POWER PWB CIRCUIT DIAGRAM ......................2-15 REGURATOR PWB CIRCUIT DIAGRAM ....................2-19 FRONT SENSOR PWB CIRCUIT DIAGRAM .................... 2-21 FRONT CONTROL PWB CIRCUIT DIAGRAM ..................

  • Page 77: Block Diagram

    BLOCK DIAGRAM L-SW MAIN IC6501[0J] IC6641[0J] TONE/VOLUME/ AUDIO R-SW MAIN BBE/SURROUD IC7301 IC7807 SPEAKER J6401[L3] RGB PROCESS SUB CPU L-SW SUB IC6401[0J] HEADPHONE R-SW SUB HEADPHONE LCD PANEL TU1101[0J] IC7805 U/V FRONTEND VY-SW SUB 2DYC-Y IC1301[10] MEMORY IC3001[10] IC1501[0J] COMPONENT 2D YC SEP.

  • Page 78: Circuit Diagrams

    CIRCUIT DIAGRAMS RECEIVER PWB CIRCUIT DIAGRAM ( 1/3 ) SHEET1 R1131 Q1103 Q1102 2SC3928A/QR/-X TU1101 2SA1530A/QR/-X TU1101 QAU0322-001 R1132 R1133 R1134 OPEN C1106 OPEN R1143 OPEN C1107 OPEN R1122 R1123 R1142 OPEN OPEN OPEN R1141 C1117 OPEN L1101 OPEN C1162 C1161 R1154 R1153 L1102...

  • Page 79: Receiver Pwb Circuit Diagram

    RECEIVER PWB CIRCUIT DIAGRAM (2/3) SHEET 2 RECEIRVER PWB ASS'Y (2/3) J2001 D2101 QND0102-001 MA8100/M/-X LCA90182-01B C2102 NCB31HK-103X D2217 (SSB-0J086A) J2001 MA8100/M/-X C2103 QND0102-001 QETN1HM-106Z R2103 R2102 D2216 S1 VIDEO MA8100/M/-X INPUT-1 J2001 J2001 QND0102-001 QND0102-001 C2104 QETN1HM-106Z J2002 VIDEO QNN0370-001 R2104 D2215...
  • Page 80 RECEIVER PWB CIRCUIT DIAGRAM (3/3) SHEET 3 IC6101 AN77L12-T (3/3) RECEIVER PWB ASS'Y D6101 OPEN LCA90182-01B C6103 C6102 C6101 K6103 OPEN AU_GND R6105 (SSB-0J086A) R6106 R6107 R6108 CN000F QGA2001C2-04V AU_VCC VREF IC6641 TA2024ASE-X AU_D_VCC POWER PWB(2/2) K6101 R6541 5.6K K6102 C6606 SHEET2 C6541...

  • Page 81: Video Pwb Circuit Diagram

    VIDEO PWB CIRCUIT DIAGRAM ( 1/2 ) SHEET 4 VIDEO PWB ASS'Y (1/2) LCA90152-03C (SSB-1086A) 3.3V GND2DA C3078 L3003 NQR0413-003X R3071 R3072 R3073 R3074 R3075 VCC9VA GND2DA GND2DA IC3002 C3070 C3069 R1170H331B-X 0.01 2DYCRY 2DYCBY C3077 GND2DA GND2DA R3049 0.33 GND2DD GND2DD GND2DD...
  • Page 82 VIDEO PWB CIRCUIT DIAGRAM ( 2/2 ) SHEET 5 R2294 OPEN J1092 R2292 R2297 LC2101 R2293 D2260 D2261 R2295 OPEN Q1301 2SC3837K/NP/-X C1372 R1372 R1376 L1301 C1301 QRN143J-0R0X R1375 COM_Y C2301 LC1301 OPEN R2301 OPEN C1373 R1374 COMYGND COMY1 C1304 OPEN R1377 C1382...

  • Page 83: Power Pwb Circuit Diagram

    POWER PWB CIRCUIT DIAGRAM ( 1/2 ) SHEET 6 R9001 QRZ9046-105Z F9001 LF9001 C9002 LF9002 QMF51D2-6R3-J1 QQR1281-004 QQR1281-004 QFZ9075-105 CN000D OPEN OPEN POWER CORD L9201 QQR1399-001 QGA7901C1-02 VA9001 LF9003 H9211 ERZV10V621CS CN00PW QQR1376-001 LC32378-001A C9001 R9201 QFZ9075-225 C9201 C9204 CP9211 .0022 .0022 QRZ0121-200...
  • Page 84 POWER PWB CIRCUIT DIAGRAM ( 2/2 ) SHEET 7 LCD PANEL (INVERTER PWB) CN000P CN000Q GND2 POWER PWB ASS'Y (2/2) LCA90149-03F R9605 R9606 CN000Y OPEN OPEN (SSB-9086A) COOLING Y9547 D9602 OPEN H9541 IC9601 OPEN OPEN CN000Z LC32377-001A C9603 OPEN OPEN Y9548 C9541 680p...
  • Page 85 REGURATOR PWB CIRCUIT DIAGRAM SHEET 8 REGURATOR PWB ASS'Y LCA90150-03D (SSB-9186A) 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 C9803 OPEN OPEN MA111-X 1/2W NBZ0010-396X R9801 D9801 D9809 EC30HA03L-X PTZ11B-X K9801...

  • Page 86: Front Sensor Pwb Circuit Diagram

    FRONT SENSOR PWB CIRCUIT DIAGRAM SHEET 9 FRONT SENSOR PWB ASS'Y LCA90155-03B (SSB-0L286A) IC8751 CN8003 QGB2542J1-08 NOT USE R8751 FRONT CONTROL PWB SHEET10 R8754 R8752 R8753 C8751 R8759 IC8752 GP1UM281QK R8756 STB5V R8755 OPEN C8753 C8752 OPEN R8758 R8757 OPEN NOTES) 1.Please refer to page 2-35 for voltages of circuit diagram No.YA089 2-21...

  • Page 87: Front Control Pwb Circuit Diagram

    FRONT CONTROL PWB CIRCUIT DIAGRAM SHEET 10 FRONT CONTROL PWB ASS'Y CN300T QGA1501C2-10V LCA90154-03D S8707 QSW0797-001 (SSB-0L386A) MI-COM & DIST MODULE S8703 S8702 S8701 QSW0797-001 QSW0797-001 QSW0797-001 R8701 R8702 5.6k CN3003 QGB2542K1-08 S8706 S8705 S8704 QSW0797-001 QSW0797-001 QSW0797-001 FRONT SENSOR PWB SHEET9 R8703 R8704...

  • Page 88: Pattern Diagrams

    PATTERN DIAGRAMS RECEIVER PWB PATTERN [ SOLDER SIDE ] J2021 J2002 J2012 J2032 J2011 J2001 J2031 TU1101 D2251 R2258 C2146 C2251 R2251 R2253 C2105 C2106 C2127 C2128 C2253 D2212 C2262 D2213 D2210 C1101 D2219 D2218 D2209 D2253 R2261 R2268 R2252 L1102 D2217 C2123...

  • Page 89: Video Pwb Pattern

    VIDEO PWB PATTERN [ SOLDER SIDE ] VIDEO PWB PATTERN [ PARTS SIDE ] No.YA089 2-27 2-28 No.YA089...

  • Page 90: Power Pwb Pattern

    POWER PWB PATTERN [ SOLDER SIDE ] R9545 Y9101 R9604 R9514 H9211 D9511 C9510 Q9501 C9198 C9199 R9625 C9551 H9541 R9613 C9511 C9554 D9510 D9506 D9502 R9512 D9509 R9509 PC9541 C9509 R9518 D9508 C9550 IC9603 D9501 D9513 R9611 R9608 R9610 K9505 R9609 K9501...
  • Page 91 POWER PWB PATTERN [ PARTS SIDE ] Y9101 H9211 H9541 Q9501 R9545 C9198 Y9547 C9199 Y9548 C9511 C9602 R9512 D9502 C9510 C9606 C9551 C9509 C9550 R9509 Y9546 Y9550 D9501 K9501 K9505 K9502 K9504 R9541 C9545 R9505 C9503 R9506 CP9541 D9541 R9502 C9504 C9544...

  • Page 92: Regurator Pwb Pattern

    REGURATOR PWB PATTERN [ SOLDER SIDE ] FRONT SENSOR PWB PATTERN [ SOLDER SIDE ] FRONT SENSOR PWB PATTERN [ SOLDER SIDE ] R9820 D9804 Q9802 C9802 D9805 IC9802 R9814 C9804 D9808 C9808 C9806 R9805 R9829 R9812 R9817 R9816 D9807 Q9803 D9803 R9826...

  • Page 93: Voltage Charts

    VOLTAGE CHARTS <REGURTOR> <POWER> <VIDEO> <RECEIVER> [SHEET8] [SHEET5] [SHEET6] [SHEET4] [SHEET1] 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 ) DC ( V )

  • Page 94: Waveforms

    WAVEFORMS RECIEVER PWB [SHEET1] TU1101-18 0.9Vp-p [SHEET2] IC1501-5 IC1501-30 IC1501-37 IC1501-39 IC1501-41 IC1501-44 IC1501-47 0.7Vp-p 0.9Vp-p 1.5Vp-p 1.7Vp-p 2.0Vp-p 1.8Vp-p 1.5Vp-p IC1501-58 IC1501-49 IC1501-53 IC1501-56 2.0Vp-p 2.0Vp-p 2.0Vp-p 0.1Vp-p VIDEO PWB [SHEET4] IC3001-7 IC3001-13 IC3001-42 IC3001-136 IC3001-157 IC3001-163 IC3001-169 1.6Vp-p 0.1Vp-p 1.7Vp-p 1.5Vp-p...
  • Page 96 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.YA089) Printed in Japan...

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