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JVC LT-26WX84 Service Manual

Lcd flat television
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Download this manual See also: User Manual
SERVICE MANUAL
2003
10
YA003
TV CATV VCR DVD
MULTI SCREEN
SPLIT
FREEZE
SWAP
INPUT 1
1
V1
INPUT 2
4
V2
INPUT 3
7
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
RM-C13G
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-52
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
LCD FLAT TELEVISION
LT-26WX84
POWER
ASPECT
INDEX
SELECT
2
3
5
6
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

TABLE OF CONTENTS

/SJ
BASIC CHASSIS
SB5
No.YA003
2003/10

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Table of Contents

Troubleshooting

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Summary of Contents for JVC LT-26WX84

  • Page 1: Table Of Contents

    SERVICE MANUAL LCD FLAT TELEVISION YA003 2003 LT-26WX84 BASIC CHASSIS POWER TV CATV VCR DVD ASPECT MULTI SCREEN SPLIT INDEX FREEZE SWAP SELECT INPUT 1 INPUT 2 INPUT 3 RETURN+ INPUT 4 100+ THEATER NATURAL VIDEO DIGITAL-IN CINEMA STATUS D-IN...
  • Page 2 SPECIFICATION Items Contents Dimensions ( W × H × D ) 103.5cm × 64cm × 9.8cm (40-13/16" × 25-1/4" × 3-7/8") Mass 22 kg (48.5 lbs) TV RF System CCIR (M) Color System NTSC Sound System BTSC (Multi Channel Sound) TV Receiving Channels VHF Low 02ch~06ch : 54MHz~88MHz...

  • Page 3: Precaution

    SECTION 1 PRECAUTION SAFETY PRECAUTIONS (1) The design of this product contains special hardware, many (9) Isolation Check (Safety for Electrical Shock Hazard) circuits and components specially for safety purposes. For After re-assembling the product, always perform an isolation continued protection, no changes should be made to the original check on the exposed metal parts of the cabinet (antenna design unless authorized in writing by the manufacturer.
  • 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 COV- JACK COVER(R) (2) Remove the 4 screws [B], and remove the STAND.
  • 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). COOLING (2) Remove the 5 screws [F], and remove the FAN BRACKET. (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 VIDEO PWB (1) Remove the 1 screw [N] and 1 screw [P]. Then, remove the 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 BRACKET.
  • Page 16 3.1.10 REMOVING THE LCD PANEL UNIT • Remove the STAND. • Remove the REAR COVER. • Remove the POWER CORD. • Remove the RECEIVER. LCD PANEL • Remove the FRONT CONTROL PWB. • Remove the FRONT SENSOR PWB. • Remove the VIDEO PWB. •...
  • Page 17 MEMORY IC REPLACEMENT SERVICE MENU This memory IC stores data for proper operation of the video and SERVICE MENU deflection circuits. 1.PICTURE/SOUND 7.PANEL When replacing, be sure to use an IC containing this (initial 2.YC SEP 8.PP value) data. 3.WHITE BALANCE 9.IP 4.MEMORY SETUP 0.HDMI...
  • Page 18 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 INPUT INPUT CHANNEL CHANNEL CABLE-02 VOLUME VOLUME ASPECT PANORAMA MUTING DISPLAY SOUND ASPECT PANORAMA OFF TIMER VIDEO STATUS DINAMIC NATURAL CINEMA AUTO 3.2.3.3...
  • Page 19 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 20: Adjustment

    SECTION 4 ADJUSTMENT ADJUSTMENT PREPARATION (1) You can make the necessary adjustments for this unit with Setting item Settings either the Remote Control Unit or with the adjustment tools VIDEO STATUS STANDARD and parts as given below. (2) Adjustment with t he Remote Control Unit is made on the BRIGHT / CONTRAST / COLOR / TINT Center basis of the initial setting values, however, the new setting COLOR TEMPERATURE...
  • Page 21 ADJUSTMENT LOCATION & WIRING (No.YA003)1-21...
  • Page 22 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 23 4.4.1 TOOL OF SERVICE MODE OPERATION Operate the SERVICE MODE with the REMOTE CONTROL UNIT. 4.4.2 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 24 (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 25 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 26 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 27 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 28 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 29 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 30 4.5.2 [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 31 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 32 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 33 4.5.3 [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 34 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 35 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 36 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 37 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 38 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 39 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 40 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 41 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 42 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 43 ADJUSTMENT PROCEDURE 4.6.1 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 44 4.6.2 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 45 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 46 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 47 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 48 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 49 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 50 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 51 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 52: 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 53 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 54 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 55 JVC SERVICE & ENGINEERING COMPANY OF AMERICA DIVISION OF JVC AMERICAS CORP. www.jvcservice.com(US Only) JVC CANADA INC. Head office : 21 Finchdene Square Scarborough, Ontario M1X 1A7 (416)293-1311 (No.YA003) Printed in Japan...

  • Page 56: 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 57 DIGITAL INPUT MODULE P.W.BOARD (26WX84CP-S) ................3-13 REMOTE CONTROL UNIT PARTS LIST (RM-C13G-1H) ..................3-13 PACKING ................................... 3-14 PACKING PARTS LIST ............................. 3-14 USING P.W. BOARD & REMOTE CONTROL UNIT P.W.B ASS'Y LT-26WX84 VIDEO P.W.B LCA90152-03C (SSB-1086A) POWER P.W.B LCA90149-03E (SSB-9086A) REGULATOR P.W.B LCA90150-03C (SSB-9186A) RECEIVER P.W.B...

  • Page 58: Exploded View Parts List

    LC21339-001A DUCT BASE (x2)  156 LC11623-002B FRONT PANEL ASSY Inc. 156A-156F 156A LC11625-002A FRONT PANEL 156B LC21325-001D PUNCHING SHEET 156C CM48006-010-C JVC MARK 156D LC41659-001A W FACE TAPE (x2) 156E LC41659-001A W FACE TAPE (x2) 156F LC41665-001A TUBE (No.YA003)3-3...

  • Page 59: Exploded View

    EXPLODED VIEW 111A OPERATION SHEET REAR 111B 121B 121C 121A FAN BRACKET REGULATOR PWB INSULATOR RECEIVER PWB FRONT CONTROL PWB FRONT SENSOR PWB 133A 3-4(No.YA003)
  • Page 60 VIDEO PWB DIGITAL INPUT MODULE EARTH PLATE POWER PWB MAIN PWB BRACKET RECIEVER PWB BRACKET MI-COM & DIST MODULE PWB CHASSIS BASE CENTER FRAME RIGHT FRAME FRONT PANEL ASS'Y 156D LEFT FRAME 156E 156D BOTTOM FRAME 156E TOP FRAME 156F 156A 156C 156B...

  • Page 61: Printed Wiring Board Parts List

    PRINTED WIRING BOARD PARTS LIST Ref No. VIDEO P.W.BOARD ASSY 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 62 Ref No. Ref No. Part No. Part Name Description Local 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 63: Power P.w.board Assy (Lca90149-03E) (Ssb-9086A)

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

  • Page 64: Regulator P.w.board Assy (Lca90150-03C) (Ssb-9186A)

    Ref No. REGULATOR P.W.BOARD ASSY Part No. Part Name Description Local (LCA90150-03C) ((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 65: Receiver P.w.board Assy (Lca90182-01B) (Ssb-0J086A)

    Ref No. RECEIVER P.W.BOARD ASSY Part No. Part Name Description Local (LCA90182-01B) (SSB-0J086A) C1118 NDC31HJ-221X C CAPACITOR 220pF 50V J Ref No. Part No. Part Name Description Local C1119 NDC31HJ-221X C CAPACITOR 220pF 50V J C1141 QENC1HM-475Z BP E CAPACITOR 4.7uF 50V M C1142 NCB31EK-104X...
  • Page 66 Ref No. Ref No. Part No. Part Name Description Local Part No. Part Name Description Local C6505 NCB31HK-332X C CAPACITOR 3300pF 50V K R1126 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J C6506 NCB31HK-332X C CAPACITOR 3300pF 50V K R1131 NRSA63J-103X MG RESISTOR 10kΩ...

  • Page 67: Front Sensor P.w.board Assy (Lca90155-03B) (Ssb-0L286A)

    Ref No. Ref No. Part No. Part Name Description Local Part No. Part Name Description Local R6101 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R6710 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R6102 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R6723 NRSA63J-103X MG RESISTOR 10kΩ...

  • Page 68: Mi-Com & Dist Module P.w.board (Lca10291-03F) (Ssb-0D086A)

    Ref No. Part No. Part Name Description Local C6413 NDC31HJ-102X C CAPACITOR 1000pF 50V J C6414 NDC31HJ-102X C CAPACITOR 1000pF 50V J R6411 NRSA63J-390X MG RESISTOR 39Ω 1/16W J R6412 NRSA63J-390X MG RESISTOR 39Ω 1/16W J R6413 NRSA63J-390X MG RESISTOR 39Ω...

  • Page 69: Packing

    PACKING PACKING PARTS LIST  Ref.No. Part No. Part Name Description Local LC10006-027A PACKING CASE LC21411-001A CUSHION LC11697-001A CUSHION ASSY 4pcs in 1set LC41664-001A SET COVER CP30974-005 POLY BAG CM47385-00A POS SERIAL LABEL RM-C13G-1H REMOCON UNIT LCT1524-001A INST SHEET LC41748-001A CARTON SHEET QPA02503505P POLY BAG...
  • Page 70 Assembly procedure, exploded view, and parts list of exploded view of the LCD PANEL are added, and described in this service manual. For details other than those described in this manual, please refer to the LT-26WX84/SJ model service manual (No.YA003, 2003/10).

  • Page 71: Disassembly Procedure

    Before disassemble the LCD PANEL, confirm that there is no damage in the LCD PANEL (polarizer). 1. DISASSEMBLY OF LCD PANEL LT-26WX84/SJ model service manual * For removing the LCD PANEL, see page 1-16 "3.1.10 REMOVING THE LCD PANEL" in 1.1 REMOVING THE CONTROL PWB...
  • Page 72 1.3 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 73 CONTROL PWB  INVERTER-26 INVERTER PWB  LJ96-01100A BACKLIGHT UNIT JVC SERVICE & ENGINEERING COMPANY OF AMERICA DIVISION OF JVC AMERICAS CORP. www.jvcservice.com(US Only) JVC CANADA INC. Head office : 21 Finchdene Square Scarborough, Ontario M1X 1A7 (416)293-1311 (No.YA003B) Printed in Japan...
  • Page 74 The following items for the LT-26WX84/SCA model were changed partly from LT-26WX84/SJ model. Therefore, this service manual describes only the items which differ from those of the LT-26WX84/SJ model service manual. For details other than those described in this manual, please refer to the LT-26WX84/SJ model service manual (No.YA003, 2003/10). OUTLINE Since the production place was changed, we have issued the SERVICE MANUAL for LT-26WX84/SCA.
  • Page 75 DIFFERENCE LIST USING P.W. BOARD (Page 3-2) P.W.B ASS'Y Name LT-26WX84/SJ LT-26WX84/SCA DESCRIPTION VIDEO P.W.B LCA90152-03C SSB-1086A-M2 Non compatible POWER P.W.B LCA90149-03E SSB-9086A-M2 Non compatible REGULATOR P.W.B LCA90150-03C SSB-9186A-M2 Non compatible RECEIVER P.W.B LCA90182-01B SSB0J086A-M2 Non compatible FRONT SENSOR P.W.B...

  • Page 76: Important Note

    LCD Flat Television Users Guide For Model: LT-26WX84 Illustration of LT-26WX84 and RM-C13G Important Note: In the spaces below, enter the model and serial number of your television (located at the rear of the television cabinet). Staple your sales receipt or invoice to the inside cover of this guide.
  • Page 77 5. In the event of trouble, unplug the unit and call a service technician. Do not attempt to repair it yourself or remove the rear cover. Changes or modifications not approved by JVC could void the warranty. * When you don’t use this TV set for a long period of time, be sure to disconnect both the power plug from the AC outlet and antenna for your safety.
  • Page 78 ® • As an “ENERGY STAR ” partner, JVC has determined that this product or product model meets the ® “ENERGY STAR ” guidelines for energy efficiency. IMPORTANT SAFETY INSTRUCTIONS Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions.
  • Page 79 16) Avoid improper installation and never position the unit where good ventilation is impossible. When installing this TV, distance recommendations must be maintained between the set and the wall, as well as inside a tightly enclosed area or piece of furniture. Keep to the minimum distance guidelines shown for safe operation.
  • Page 80 Warnings Screen Burn-in By displaying fi xed images for extended periods of time, can leave a subtle but permanent ghost image in your picture. This is referred to as "burn-in". To avoid this, mix your viewing pattern. Examples include, but are not limited to the following: •...
  • Page 81 Warnings How to move the cabinet Your fingers may become trapped under The TV may fall causing injuries. Hold the the TV, causing injuries. Hold the TV at the bottom of the stand with your hand and tilt bottom in the middle, and do not allow the TV the TV up or down.
  • Page 82 Table of Contents Quick Setup ... 8 Sound Adjust ..44 Unpacking your TV ... . 8 Sound Settings .

  • Page 83: Quick Setup

    Quick Setup Unpacking your TV Thank you for your purchase of a JVC LCD Flat Television. Before you begin setting up your new television, please check to make sure you have all of the following items. In addition to this guide, your television box should include:...

  • Page 84: Tv Model

    TV and remote. These will help assist you in understanding how to connect your television to another device, as well as use the remote to set up your television. Rear Panel Diagram MODEL: LT-26WX84 IN P U T S -V ID E V ID E O...

  • Page 85: Tv Remote Control

    STILL PAUSE RM-C13G RM-C13G MODEL: LT-26WX84 Notes: • This television model has three video inputs, therefore the INPUT 4 (V4) button on your remote control will have no effect. • For information on remote control buttons, see pages 47 - 55.

  • Page 86: Getting Started

    Quick Setup Getting Started Getting Started These quick setup pages will provide you, in three easy steps, with the basic information you need to begin using your new television right away. If you have questions, or for more detailed information on any of these steps, please consult other sections of this manual.

  • Page 87: The Remote Control

    CH –. The channels will zip by at a rate of five channels per second. The right and left buttons will turn the volume up or down. These buttons are also marked with four arrows and are used with JVC’s onscreen menu system. To use the MENU BACK onscreen menus, press the M button.

  • Page 88: Connecting Your Devices

    Quick Setup Connections Step 3 - Connecting your devices Remove the terminal cover There are connection terminals behind the covers on the left and right in the back of the TV. Remove these two covers before connecting an antenna or other devices. The covers can be removed by removing the hook at the bottom and then pull out while slightly lifting.
  • Page 89 Quick Setup Connections Diagram #1 IN PU T S- VI DE VI DE O TV Rear Panel OV ER VI DE O AU DI O IN PU T S- VI DE VI DE O OV ER VI DE O AU DI O Cable or Antenna Output VI DE O...
  • Page 90 Quick Setup Connections Notes: • Green, blue and red are the most common colors for DVD cables. Some models may vary colors. Please consult the user’s manual for your DVD player for more information. • Be careful not to confuse the red DVD cable with the red audio cable. It is best to complete one set of connections (DVD or audio output) before starting the other to avoid accidentally switching the cables.

  • Page 91: Headphone Connection

    Quick Setup Connections Connecting to a Camcorder You can connect a camcorder to you televison by using the input jacks located on the back of the television. IN PU T CAMCORDER S- VI DE VI DE O TV Rear Panel OV ER VI DE O AU DI O...
  • Page 92 Quick Setup Connections Connecting to an External Amplifier IN P U T S -V ID E TV Rear Panel V ID E O OV ER V ID E O A U D IO IN P U T S -V ID E V ID E O OV ER V ID E O...
  • Page 93 Quick Setup Connections Connecting to a Digital TV Receiver w/HDCP By inputting a high bandwidth digital content protection high definition picture source to the digital-in terminal of this television, high-definition pictures can be displayed on the screen in their digital form. (This terminal is for use in the future when high bandwidth digital content protection DTV decoders and DVD players and D-VHS are put on the market.) TV Rear Panel DTV Decoder...
  • Page 94 Quick Setup Connections Connecting to an AV Receiver using your television's V1 Smart Input By connecting your AV Receiver to your television's V1 Smart Input, you can watch picture sources from many different devices, without having to change or use the other input connections on your TV.

  • Page 95: Interactive Plug In Menu

    We recommend you complete the interactive plug-in items before you start using your television. Language After the “JVC INTERACTIVE PLUG IN MENU” has been displayed, the TV automatically switches to the LANGUAGE settings. You can choose to view your onscreen menus in three languages: English, French (Français) or Spanish (Español).
  • Page 96 Quick Setup Plug-In Menu Auto Clock Set Before you use any of your TV’s timer functions, you must first set the clock. You may precisely set your clock using the XDS time signal broadcast by most public broadcasting stations. If you do not have this in your area, you will have to set the clock manually.
  • Page 97 You can now begin watching your television, or you can continue on in this guide for more information on programming your remote control, or using the JVC onscreen menu system to customize your television viewing experience. Notes: •...

  • Page 98: Remote Programming

    Remote Programming Setting the CATV, VCR and DVD Codes You can program your remote to operate your cable box, satellite receiver, VCR or DVD player by using the instructions and codes listed below. If the equipment does not respond to any of the codes listed below or to the code search function, use the remote control supplied by the manufacturer.

  • Page 99: Vcr Codes

    Remote Programming VCR Codes The remote control is programmed with VCR codes for power on/off, play, stop, fast-forward, rewind, pause, record, channel up/down operation. 1) Find the VCR brand from the list of codes shown below. 2) Slide the first 2-way selector switch to “TV” and the other 2-way selector switch to “VCR”. 3) Press and hold down the D button, then enter the first code number listed with the 10 ISPLAY...

  • Page 100: Dvd Codes

    Remote Programming DVD Codes The remote control is programmed with DVD codes for power on/off, play, stop, fast-forward, rewind, previous/next chapter, tray open/close, and still/pause operation. 1) Find the DVD player brand from the list of codes shown below. 2) Slide the first 2-way selector switch to “TV” and the other 2-way selector switch to “DVD”. 3) Press and hold down the D button, then enter the first code number listed with the 10 ISPLAY...

  • Page 101: Search Codes

    Remote Programming Search Codes Cable/Satellite Search Codes Function 1) Slide the first 2-Way Mode Selector switch to CATV. 2) Press and hold down the P button, then press the R +/TV button for more than OWER ETURN three seconds. 3) Release the R +/TV button, then release the P button.

  • Page 102: Onscreen Menus

    Onscreen Menus Using the Guide Certain symbols are used throughout this guide to help you learn about the features of your new television. The ones you will see most frequently are: π † Up and Down arrows mean press the C + or C –...

  • Page 103: Onscreen Menu System

    Onscreen Menus The Onscreen Menu System Your television comes with JVC’s onscreen menu system. The onscreen menus let you make adjustments to your television’s operation simply and quickly. Examples of the onscreen menus are shown on the next page. Detailed explanations on using each menu follow later in this guide.
  • Page 104 Onscreen Menus Press the M button INITIAL SETUP INITIAL SETUP PREVIOUS PREVIOUS LANGUAGE ENG. FRAN. ESP. AUTO TUNER SETUP CLOSED CAPTION CHANNEL SUMMARY AUTO SHUT OFF V-CHIP SET LOCK CODE XDS ID AUTO DEMO NEXT PAGE NEXT PAGE SELECT OPERATE EXIT SELECT OPERATE...

  • Page 105: Initial Setup

    Initial Setup Auto Tuner Setup The auto tuner setup function is described on page 22 as the interactive plug-in menu. If you need to run the auto tuner setup again, follow the steps below. Press the M button AUTO TUNER SETUP To AUTO TUNER SETUP π...

  • Page 106: V-Chip

    Initial Setup Channel Guard Message When a viewer attempts to watch a guarded channel, the following message appears: To watch a channel that you have locked, enter the THIS CHANNEL IS LOCKED BY Lock Code using the 10 key pad. CHANNEL GUARD.
  • Page 107 Initial Setup Unrated Programs Unrated programming refers to any programming which does not contain a rating signal. Programming on television stations which do not broadcast rating signals will be placed in the “Unrated Programming” category. Examples of Unrated programs: • Emergency Bulletins •...
  • Page 108 Initial Setup US V-Chip Ratings U.S. PARENTAL RATING SYSTEMS Programs with the following ratings are appropriate for children. TV Y is Appropriate for All Children Programs are created for very young viewers and should be suitable for all ages, including children ages 2 - 6.
  • Page 109 Initial Setup Setting US V-Chip Ratings Press the M button V-CHIP To V-CHIP V-CHIP π † √® SET US TV RATINGS To operate (lock icon appears) SET MOVIE RATINGS SET CANADIAN RATINGS ENG Press Z to access the V-Chip menu SET CANADIAN RATINGS FRE √®...
  • Page 110 Initial Setup Movies Ratings NR – Not Rated This is a film which has no rating. In many cases these films were imported from countries which do not use the MPAA ratings system. Other NR films may be from amateur producers who didn’t intend to have their film widely released.
  • Page 111 Initial Setup Canadian V-Chip Ratings E – Exempt Exempt programming includes: news, sports, documentaries and other information programming, talk shows, music videos, and variety programming. C – Programming Intended for Children Violence Guidelines: There will be no realistic scenes of violence. Depictions of aggressive behavior will be infrequent and limited to portrayals that are clearly imaginary, comedic or unrealistic in nature.

  • Page 112: Set Lock Code

    Initial Setup Set Lock Code Channel guard and V-Chip settings are protected by a four-digit lock code. Your TV comes preset with a lock code of “0000”. You may change the code to any four-digit number you wish. To change the lock code, follow the steps below. Press the M button SET LOCK CODE...

  • Page 113: Language

    Initial Setup Language The language function is described on page 20 as the interactive plug-in menu. If you need to choose the language again, follow the steps below. Press the Menu button INITIAL SETUP To LANGUAGE π † PREVIOUS √® To choose a language: ENG.

  • Page 114: Xds Id

    Initial Setup XDS ID XDS ID Display provides a channel’s call letters, the network’s name, and even a program name. The XDS ID information is provided by the broadcaster. Press the M button INITIAL SETUP PREVIOUS To XDS ID π † LANGUAGE ENG.

  • Page 115: V1 Smart Input

    Initial Setup V1 Smart Input This feature is used if you have connected an AV Receiver to your television. By turning this feature on, your television can automatically detect the signal source from your components that are connected to your AV Receiver. Press the M button INITIAL SETUP...

  • Page 116: Video-1 Monitor Out

    Initial Setup Video-1 Monitor Out This function allows you to set whether the signal, which comes from VIDEO-1 input terminal, should be output from MONITOR OUT terminal. If you select it from MONITOR OUT, set it to "ON". INITIAL SETUP Press the M button PREVIOUS...

  • Page 117: Picture Adjust

    Picture Adjust Picture Settings These settings allow you to change and adjust the way the picture appears on your television. TINT Tint allows you to adjust the levels of red and green in your TV picture. COLOR The color function lets you make all the colors in the TV picture appear either more vivid or subtle.

  • Page 118: Color Temperature

    Picture Adjust Color Temperature You can decide how strong or dull the colors appear on the TV screen. Press the M button PICTURE ADJUST To COLOR TEMPERATURE π † PREVIOUS STANDARD √® COLOR TEMPERATURE To enter DIG. NOISE CLEAR COLOR MANAGEMENT VIVID COLOR TEMPERATURE LOW HIGH...

  • Page 119: Sound Adjust

    Sound Adjust Sound Settings These settings allow you to change and adjust the sound on your television. BASS – You can increase or decrease the level of low-frequency sound in the TV’s audio with the bass adjustment. TREBLE – Use treble to adjust the level of high-frequency sound in your TV’s audio. BALANCE –...

  • Page 120: Clock Timers

    Clock/Timers Set Clock The set clock function is described on page 21 as the interactive plug-in menu. You can choose to set the clock automatically, or manually. If you need to set the clock again, follow the steps below. Press the M button To SET CLOCK π...

  • Page 121: On/Off Timer

    Clock/Timers On/Off Timer The on/off timer lets you program your television to turn itself on or off. You can use it as an alarm to wake up, to help you remember important programs, or as a decoy when you’re not home.

  • Page 122: Button Functions

    Button Functions Multi Screen Function Your television has two kinds of screen: SPLIT (2 channels), and INDEX (12 channels). Note: After you press any multiscreen button, if you press the menu button, only the picture adjust screen will appear. Split Activate the split-screen option by pressing S on the remote control.

  • Page 123: Index

    Button Functions Index This allows you to quickly look at up to 12 channels at a time so that you can decide which one to watch. Notes: • Only RF input signal will be displayed. • You can watch the channel added in channel summary. See page 30. Freeze Pressing the F button causes the screen to change to the split-screen display with the still...

  • Page 124: Power

    Button Functions Power Turns the TV on or off. Press the P button OWER Number Buttons - 10Key Pad Use the number buttons on the remote control to move directly to a specific channel. For example, to move to channel 7: 0 (Zero) 7 (Seven) 100+ Button...

  • Page 125: Return +/Tv

    Button Functions Return +/TV The return+/TV button has three functions: Return - Returns to the channel viewed just before the channel currently onscreen. Return+ - Lets you program a specific channel to return to while scanning through the channels using the CH+ and CH– buttons. TV - Returns to the TV mode.

  • Page 126: Video Status

    Button Functions Video Status ideo status button gives you a choice of four TV picture display settings, including a display of your own preferences. Standard - Resets the picture display to the factory settings. VIDEO STATUS Dynamic - Gives a vivid picture with better contrast when viewing in a brightly lit room.

  • Page 127: Sleep Timer

    Button Functions Sleep Timer The Sleep Timer can turn the TV off for you after you fall asleep. Program it to work in intervals of 15 minutes, for a total time of up to 180 minutes. Press the S button LEEP IMER 0 15 30 45 60 75 90 105 120 135 150 165 180...

  • Page 128: Aspect

    Button Functions Aspect This feature will help you adjust the picture you are watching to give you the best possible picture quality. Aspect Ratios PANORAMA - With this ratio a normal REGULAR - The regular ratio is used 4:3 aspect picture is stretched to fit the when you want to watch a 4:3 broadcast dimensions of the 16:9 aspect screen.

  • Page 129: Menu

    CAPTION TEXT Menu The M button allows you to access JVC’s onscreen menu system. Press M to activate the onscreen menu system. • See individual topics like “Sound Adjust” for specific information on using menus. This button confirms your selection when you are in one of the onscreen menus.

  • Page 130: Tv/Catv Slide Switch

    VCR, please see the code chart and instructions on page 24. • The remote is preset with the code 000 to control JVC-brand DVD players. For any other manufacturer’s brand DVD player, please see the code chart and instructions on page 25.

  • Page 131: Appendices

    Troubleshooting PROBLEMS CHECK There is no power • See if the power cord became unplugged. • Check for a blown fuse or circuit breaker or a power outage. There is no picture • The antenna could be disconnected. or sound •...

  • Page 132: Warranty

    Commonwealth of Puerto Rico. WHAT WE WILL DO: If this product is found to be defective within the warranty period, JVC will repair or replace defective parts at no charge to the original owner. Such repair and replacement services shall be rendered during regular business hours by JVC authorized service centers.
  • Page 133 OF MERCHANTABILITY, IS LIMITED TO THE DURATION OF THE EXPRESS WARRANTY HEREIN. JVC SHALL NOT BE LIABLE FOR THE LOSS OF USE OF THE PRODUCT, INCONVENIENCE, OR ANY OTHER DAMAGES, WHETHER DIRECT, INCIDENTAL OR CONSEQUENTIAL (INCLUDING, WITHOUT LIMITATION, DAMAGE TO TAPES, RECORDS...

  • Page 134: Authorized Service Centers

    To prevent electrical shock, do not open the cabinet. There are no user serviceable parts inside. Please refer to qualified service personnel for repairs. Accessories To purchase accessories for your JVC product, please call toll free:1 (800) 882-2345 or on the web at www.JVC.com...

  • Page 135: Specifications

    Accessories Illuminated remote control unit / AA batteries X 2 Specifications subject to change without notice. JVC COMPANY OF AMERICA JVC CANADA, INC. Division of JVC Americas Corp. 21 Finchdene Square 1700 Valley Road Scarborough, Ontario Wayne, New Jersey, 07470...

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