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JVC LT-26X506/S Service Manual

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SERVICE MANUAL
10
2005
YA333
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
LCD FLAT TELEVISION
LT-26X506
LT-32X506

TABLE OF CONTENTS

COPYRIGHT © 2005 Victor Company of Japan, Limited
,
/S
/S/L
BASIC CHASSIS
FU
No.YA333
2005/10

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Summary of Contents for JVC LT-26X506/S

  • Page 1: Table Of Contents

    SERVICE MANUAL LCD FLAT TELEVISION YA333 2005 LT-26X506 LT-32X506 /S/L BASIC CHASSIS TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION Contents Items LT-26X506 LT-32X506 Dimensions ( W × H × D ) 68.6 cm × 52.7 cm × 30.8 cm 82.0 cm × 60.4 cm × 30.8 cm (27-1/8" × 20-3/4" × 12-1/4") [Included stand] (32-3/8" × 23-7/8" × 12-1/4") [Included stand] 68.6 cm ×...

  • Page 3: Precaution

    SECTION 1 PRECAUTION SAFETY PRECAUTIONS (1) The design of this product contains special hardware, (6) 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 1.3.2 OPTICAL FILTER (ON THE FRONT OF THE LCD PANEL) When transporting the unit, pressure exerted on the internal LCD (1) Avoid placing the unit under direct sunlight over a panel due to improper handling (such as tossing and dropping) prolonged period of time.

  • Page 6: Specific Service Instructions

    TV's front-firing speakers. VIDEO STATUS Expression of a favorite screen can be chosen by the VIDEO STATUS function. MAIN DIFFERENCE LIST Item LT-26X506/S LT-32X506/S LCD PANEL UNIT QLD0370-001 QLD0371-001 DIGITAL PWB QAL0754-001...
  • Page 7 2.3.1.2 PIXEL FAULT There are three pixel faults - bright fault , dark fault and flicker fault - that are respectively defined as follows. BRIGHT FAULT In this pixel fault, a cell that should not light originally is lighting on and off. For checking this pixel fault, input ALL BLACK SCREEN and find out the cell that is lighting on and off.

  • Page 8: Disassembly

    SECTION 3 DISASSEMBLY DISASSEMBLY PROCEDURE CAUTION AT DISASSEMBLY: • Make sure that the power cord is disconnected from the outlet. • Pay special attention not to break or damage the parts. • When removing each board, remove the connectors as required. Taking notes of the connecting points (connector numbers) makes service procedure manageable.
  • Page 9 STAND COVER BACK BRACKET JACK COVER STAND DIGITAL PWB POWER PWB SHIELD MAIN PWB REAR COVER POWER PWB POWER CORD TERMINAL BASE MAIN BASE INSULATOR TOP FRAME SPEAKER SPEAKER LCD PANEL UNIT LED PWB BOTTOM FRAME KEY PWB This exploded view shows the LT-26X506. FRONT PANEL LT-32X506 slightly differs from this exploded view, however it can be disassembled in the...
  • Page 10 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 1.
  • Page 11 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 CHANNEL CABLE-02 CHANNEL CABLE-02 VOLUME VOLUME DISPLAY ASPECT NTSC PANORAMA HD / ATSC FULL SLEEP TIMER VIDEO STATUS DYNAMIC HYPER SURROUND 3.2.3.3...
  • Page 12 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 13: Adjustment

    SECTION 4 ADJUSTMENT ADJUSTMENT PREPARATION ADJUSTMENT ITEMS (1) There are 2 ways of adjusting this TV : One is with the VIDEO CIRCUIT REMOTE CONTROL UNIT and the other is the • WHITE BALANCE (HIGH LIGHT) adjustment conventional method using adjustment parts and components.
  • Page 14 4.5.3 DESCRIPTION STATUS DISPLAY 4.5.4 CHANGE AND MEMORY OF SETTING VALUE ADJUSTMENT MODE SELECTION OF SETTING ITEM • [CH+] / [CH-] key. SETTINGITEM No. SETTING ITEM SETTING VALUE (DATA) Change the setting items up/ down. CHANGE OF SETTING VALUE (DATA) •...
  • Page 15 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 16: Troubleshooting

    ADJUSTMENT PROCEDURE 4.7.1 VIDEO CIRCUIT Measuring Item Test point Adjustment part Description instrument WHITE Remote [1.ADJUST] (1) Receive a NTSC 75% all white signal. BALANCE control unit S001: R DRIVE (Red drive) (2) Set "VIDEO STATUS" to "STANDARD". (HIGHLIGHT) S002: G DRIVE (Green drive) (3) Set "ASPECT"...
  • Page 17 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY DISPLAY CATEGORY 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan (No.YA333) Printed in Japan...
  • Page 18 SCHEMATIC DIAGRAMS LCD FLAT TELEVISION YA333 2005 LT-26X506 LT-32X506 BASIC CHASSIS CD-ROM No.SML200510 COPYRIGHT © 2005 Victor Company of Japan, Limited No.YA333 2005/10...
  • Page 19 LT-26X506 , LT-32X506 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 20 CIRCUIT DIAGRAMS MAIN PWB CIRCUIT DIAGRAM ........................ 2-7 DIGITAL SIGNAL PWB CIRCUIT DIAGRAM ................... 2-17 POWER PWB CIRCUIT DIAGRAM [LT-26X506/S] ................... 2-25 POWER PWB CIRCUIT DIAGRAM [LT-32X506/S] ................... 2-31 LED BOARD PWB CIRCUIT DIAGRAM ....................2-37 KEY PWB CIRCUIT DIAGRAM ......................... 2-38 PATTERN DIAGRAMS MAIN PWB PWB PATTERN ........................

  • Page 21: Wiring Diagram

    WIRING DIAGRAM LCD PANEL UNIT LCD PANEL UNIT CP1802 CP708 CP701 J207 CP705 CP1801 250V/5A POWER PWB KEY PWB POWER CORD MAIN PW CP706 LED PWB 2-3(No.YA333)
  • Page 22 DIGITAL SIGNAL PWB CP1012 LCD PANEL UNIT CP1008 CP1005 CP1009 CP1014 CW1002 CW703 CW501 CW502 CP602 CP601 TU401 U/V TUNER N PWB SPEAKER (R) SPEAKER (L) (No.YA333)2-4...

  • Page 23: Block Diagram

    BLOCK DIAGRAM MAIN PWB IC401 MTS DECODE TU401 STEREO MAIN TUNER EMPHASIS MATRIX EMPHASIS Component SWV_Y V1CB V1CR IC502 IC501 J502 VIDEO SW INPUT1 VIDEO/AUDIO SW S terminal SWV_SY V1SY Y OUT/ SWV_SY V1SC V_CB C OUT/ SWV_C V1CV CVBS A1-L/R AUDIO L/R V_CR...
  • Page 24 SPEAKER(R) IC603 AUDIO OUT (R) IC6521 AGC/SURROUND/AUDIO CONTROL SPEAKER(L) IC604 SURROUND VOL_L/R VOL1 TONE VOL2 AUDIO OUT (L) PROCESS J207 IC602 HP_L/R HEADPHONE H.P AMP OPERATION KEY 1,2 S201~S207 IC701 KEY PWB MAIN CPU /CLOSED CAPTION DECODE IR701 RECEIVER LED PWB IC1002 SYNC SEP.

  • Page 25: Circuit Diagrams

    CIRCUIT DIAGRAMS MAIN PWB CIRCUIT DIAGRAM (1/5) SHEET1 VOL-L SWA-R SHEET1,5 SHEET1 SWA-L VOL-R SHEET1 VOL-R SHEET2,4,5 SHEET2 S-MUTE NJW1173V-TE1 SHEET1 DOWN-MUTE SHEET1 DOWN-MUTE SHEET2 HP-MUTE SHEET2 SHEET1,5 SWA-R SHEET2 HP-VOL SHEET1 VOL-L SHEET1,5 SWA-L SHEET2 SHEET1 DOWN-MUTE 2-7(No.YA333)
  • Page 26 MAIN PWB ASS'Y (1/5) QAL0753-001 (No.YA333)2-8...
  • Page 27 MAIN PWB CIRCUIT DIAGRAM (2/5) SHEET2 TO OPE KEY PWB ASS'Y J207 SHEET2 (SHEET17) SHEET1 SHEET2 SHEET2 SHEET5 SHEET2 SHEET5 SHEET2 SHEET1,2,4,5 TO DIGITAL 5V_SDA 5V_SCL 7 DIGITAL SIGNAL PWB ASS'Y(1/4) SHEET2 CP1005 (SHEET6) PGCLK PGEN AV-RST D-TIN SHEET2 HP-DET CCFL PNL-PWR D-DIMMER...
  • Page 28 TO LED LED PWB ASS'Y CP706 (SHEET16) MAIN PWB ASS'Y (2/5) QAL0753-001 FOR ENGINEERING ONLY FLASH WRITE BUS MONITOR SHEET5 SHEET5 SHEET5 SHEET1 PEX0 SHEET5 PEX7 PEX1 SHEET1 PEX6 PEX2 PEX5 PEX3 PEX4 (No.YA333)2-10...
  • Page 29 MAIN PWB CIRCUIT DIAGRAM (3/5) SHEET3 P12V TO POWER M5V0 STB5V SHEET2 TV-PWR STB-SW POWER PWB ASS'Y(3/3) (SHEET12,15) TO POWER SGND POWER PWB ASS'Y(3/3) (SHEET12,15) SGND MAIN PWB ASS'Y (3/5) QAL0753-001 2-11(No.YA333)
  • Page 30 TO DIGITAL P12V P5V0 P3V3 P3V3 LCD5V0 M5V0 DIGITAL SIGNAL PWB ASS'Y(1/4) CP1008 (SHEET6) P5V0 P30V Dr-C SW-C SW-E Comp P9V0 TU5V0 (No.YA333)2-12...
  • Page 31 MAIN PWB CIRCUIT DIAGRAM (4/5) SHEET4 SHEET TUCV 2-13(No.YA333)
  • Page 32 TU-R SHEET5 TU-L EET2 SHEET5 TUCV MAIN PWB ASS'Y (4/5) QAL0753-001 (No.YA333)2-14...
  • Page 33 MAIN PWB CIRCUIT DIAGRAM (5/5) SHEET5 SHEET2 D-TIN V3CV A3-L V2SY V1CB A3-R V1CR V2SC S1-TIN1 V2CV SHEET2 VIDEO1 A2-L V1SC V1SY A2-R V1SY V1SC V1CV V(Y) V1CV A1-L A1-L L(W) A1-R A1-R R(R) S1-TIN2 SHEET2 V2SC Cout Yout V2SY VIDEO2 V2CV V(Y)
  • Page 34 DIGITAL SIGNAL PWB ASS'Y(1/4) CP1014 TU-L SHEET5 (SHEET6) SHEET4 TUCV SWV-C C-IN TU-R CCD-R R-IN P9V0 CCD-G G-IN Cout CCD-B SHEET5 B-IN MM9V CCD-YS YS-IN1 SHEET5 Yout SHEET2 TO DIGITAL HD-IN Vout SHEET5 VD-IN LVDS-PWR LVDS-PWR SWA-L SHEET2,5 SWV-CV CVBS SHEET1,5 SWA-R SWV-Y...

  • Page 35: Digital Signal Pwb Circuit Diagram

    DIGITAL SIGNAL PWB CIRCUIT DIAGRAM (1/4) SHEET6 MAIN PWB ASS'Y(3/5) CW1002 PNL-PWR (SHEET3) C-IN C-IN MAIN PWB R-IN R-IN ASS'Y(5/5) SHEET7 G-IN G-IN CW502 B-IN B-IN YS-IN1 (SHEET5) YS-IN1 SHEET8 HD-IN SHEET7 VD-IN SHEET6 LVDS-PWR LVDS-PWR MAIN PWB CVBS CVBS ASS'Y(5/5) Y-IN SHEET7...
  • Page 36 SCB5 SCHS SCVS SCEN SCR6 TX0- TX0+ TX1- TX1+ TX2- TX2+ TXC- DS-PWR TXC+ TX3- TX3+ LVDS-OPTION NOTE : Refer to the part list for the part number of IC1019. DIGITAL SIGNAL PWB ASS'Y (1/4) QAL0754-001 [LT-26X506/S] QAL0755-001 [LT-32X506/S] (No.YA333)2-18...
  • Page 37 DIGITAL SIGNAL PWB CIRCUIT DIAGRAM (2/4) SHEET7 CVBS DY-IN SHEET7 Y-IN C-IN CB-IN DCB-IN SHEET7 CR-IN SHEET6 DCR-IN SHEET7 R-IN G-IN B-IN YS-IN1 YS-IN SHEET9 2-19(No.YA333)
  • Page 38 YUV-Y2 YUV-Y3 YUV-Y4 YUV-Y5 YUV-Y6 YUV-Y7 SHEET6,8,9 SHEET7 SW-CR SW-CB SHEET7 YUV-CLK SHEET9 YUV-HD YUV-VD VD-IN SHEET7 SHEET6 5V_SCL 5V_SDA SHEET6 HD-IN DCR-IN SW-CR SHEET7 DY-IN SW-Y SHEET7 DCB-IN SW-CB DIGITAL SIGNAL PWB ASS'Y (2/4) QAL0754-001 [LT-26X506/S] QAL0755-001 [LT-32X506/S] (No.YA333)2-20...
  • Page 39 DIGITAL SIGNAL PWB CIRCUIT DIAGRAM (3/4) SHEET8 SHEET6 SHEET6,9 AVRESET PGCLK PGEN SHEET9 DSVD SHEET9 DSHD DSCLK DSDE DSR7 DSR6 DSR5 DSR4 DSR3 DSR2 DSR1 DSR0 DSG7 DSG6 DSG5 DSG4 SHEET9 DSG3 DSG2 DSG1 DSG0 DSB7 DSB6 DSB5 DSB4 DSB3 DSB2 DSB1 DSB0...
  • Page 40 SCR4 SCR3 SCR2 SCR1 SCR0 SCG7 SCG6 SHEET6 SCG5 SCG4 SCG3 SCG2 SCG1 SCG0 SCB7 SCB6 SCB5 SCB4 SCB3 SHEET6 SCB2 SCB1 SCB0 SCDCK SHEET8 MVSYNC SCEN SHEET6 SHEET6 HMS1 DIGITAL SIGNAL PWB ASS'Y (3/4) QAL0754-001 [LT-26X506/S] QAL0755-001 [LT-32X506/S] (No.YA333)2-22...
  • Page 41 DIGITAL SIGNAL PWB CIRCUIT DIAGRAM (4/4) SHEET9 SHEET7 SHEET7 DSR0 DSR1 DSR2 DSR3 DSR4 DSR5 DSR6 DSR7 DSG0 DSG1 DSG2 DSG3 SHEET8 DSG4 DSG5 DSG6 DSG7 DSB0 DSB1 DSB2 DSB3 DSB4 DSB5 DSB6 DSB7 2-23(No.YA333)
  • Page 42 SHEET6,8 DSCLK AVRESET DSDE DSHD SHEET6,7,8 DSVD SHEET8 DIGITAL SIGNAL PWB ASS'Y (4/4) QAL0754-001 [LT-26X506/S] QAL0755-001 [LT-32X506/S] (No.YA333)2-24...

  • Page 43: Power Pwb Circuit Diagram [Lt-26X506/S]

    POWER PWB CIRCUIT DIAGRAM (1/3) [LT-26X506/S] SHEET10 SHEET10,11,12 POWER CORD 2-25(No.YA333)
  • Page 44 SHEET11 SHEET11 SHEET10,11,12 SHEET10,11,12 SHEET10,11,12 POWER PWB ASS'Y (1/3) QAL0756-001 (No.YA333)2-26...

  • Page 45: Power Pwb Circuit Diagram [Lt-32X506/S]

    POWER PWB CIRCUIT DIAGRAM (2/3) [LT-26X506/S] SHEET11 SHEET10 SHEET11 SHEET10,11,12 SHEET10,11,12 SHEET11 SHEET12 POWER PWB ASS'Y (2/3) QAL0756-001 2-27(No.YA333)
  • Page 46 SHEET12 SHEET12 SHEET11,12 SHEET12 SHEET12 SHEET12 (No.YA333)2-28...
  • Page 47 POWER PWB CIRCUIT DIAGRAM (3/3) [LT-26X506/S] SHEET12 SHEET11 SHEET10,11 SHEET11,12 SHEET11 SHEET12 SHEET11 2-29(No.YA333)
  • Page 48 SHEET12 MAIN PWB ASS'Y(3/5) CP1802 (SHEET3) SHEET12 SHEET11 SHEET12 SHEET11,12 SHEET12 SHEET11 MAIN PWB ASS'Y(3/5) CP1801 (SHEET3) LCD PANEL UNIT SHEET12 POWER PWB ASS'Y (3/3) QAL0756-001 SHEET11,12 (No.YA333)2-30...
  • Page 49 POWER PWB CIRCUIT DIAGRAM (1/3) [LT-32X506/S] SHEET13 SHEET13,14,15 POWER CORD 2-31(No.YA333)
  • Page 50 SHEET14 SHEET14 SHEET13,14,15 SHEET13,14,15 SHEET13,14,15 POWER PWB ASS'Y (1/3) QAL0757-001 (No.YA333)2-32...
  • Page 51 POWER PWB CIRCUIT DIAGRAM (2/3) [LT-32X506/S] SHEET14 SHEET13 SHEET13 SHEET14 SHEET13,14,15 SHEET13,14,15 SHEET14 SHEET15 POWER PWB ASS'Y (2/3) QAL0757-001 2-33(No.YA333)
  • Page 52 SHEET15 SHEET15 SHEET15 SHEET15 SHEET14,15 SHEET14 (No.YA333)2-34...
  • Page 53 POWER PWB CIRCUIT DIAGRAM (3/3) [LT-32X506/S] SHEET15 SHEET14 SHEET13,14,15 SHEET14,15 SHEET14 SHEET15 SHEET14 2-35(No.YA333)
  • Page 54 SHEET15 MAIN PWB ASS'Y(3/5) CP1802 (SHEET3) SHEET15 SHEET15 SHEET15 SHEET15 LCD PANEL UNIT SHEET14 MAIN PWB ASS'Y(3/5) CP1801 (SHEET3) SHEET15 SHEET14,15 POWER PWB ASS'Y (3/3) QAL0757-001 (No.YA333)2-36...
  • Page 55 LED PWB CIRCUIT DIAGRAM SHEET16 MAIN PWB ASS'Y(2/5) CP705 (SHEET2) LED PWB ASS'Y QAL0758-001 2-37(No.YA333)

  • Page 56: Key Pwb Circuit Diagram

    KEY PWB CIRCUIT DIAGRAM SHEET17 MAIN PWB ASS'Y(2/5) CP701 (SHEET2) KEY PWB ASS'Y QAL0759-001 (No.YA333)2-38...

  • Page 57: Pattern Diagrams

    PATTERN DIAGRAMS MAIN PWB PATTERN [SOLDER SIDE] 2-39(No.YA333)
  • Page 58 (No.YA333)2-40...
  • Page 59 MAIN PWB PATTERN [PARTS SIDE] 2-41(No.YA333)
  • Page 60 (No.YA333)2-42...

  • Page 61: Digital Signal Pwb Pattern

    DIGITAL SIGNAL PWB PATTERN [SOLDER SIDE] 2-43(No.YA333)
  • Page 62 (No.YA333)2-44...
  • Page 63 DIGITAL SIGNAL PWB PATTERN [PARTS SIDE] 2-45(No.YA333)
  • Page 64 (No.YA333)2-46...

  • Page 65: Power Pwb Pattern [Lt-26X506/S]

    POWER PWB PATTERN [LT-26X506/S] [SOLDER SIDE] 2-47(No.YA333)
  • Page 66 (No.YA333)2-48...
  • Page 67 POWER PWB PATTERN [LT-26X506/S] [PARTS SIDE] 2-49(No.YA333)
  • Page 68 (No.YA333)2-50...

  • Page 69: Power Pwb Pattern [Lt-32X506/S]

    POWER PWB PATTERN [LT-32X506/S] [SOLDER SIDE] 2-51(No.YA333)
  • Page 70 (No.YA333)2-52...
  • Page 71 POWER PWB PATTERN [LT-32X506/S] [PARTS SIDE] 2-53(No.YA333)
  • Page 72 (No.YA333)2-54...

  • Page 73: Key Pwb Pattern

    LED PWB PATTERN [SOLDER SIDE] LED PWB PATTERN [PARTS SIDE] KEY PWB PATTERN [SOLDER SIDE] KEY BOARD PWB PATTERN [PARTS SIDE] 2-55(No.YA333)

  • Page 74: Voltage Chatrs

    VOLTAGE CHARTS <MAIN PWB> <DIGITAL SIGNAL PWB> <XXXXX> 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 ) DC ( V )

  • Page 75: Waveforms

    WAVEFORMS MAIN PWB (2/5) (SHEET2) IC701-5 IC701-17 IC701-18 IC701-6 IC701-15 IC701-31 0.4 Vp-p 2.0 Vp-p 4.0 Vp-p 5.0 Vp-p 5.0 Vp-p 4.2 Vp-p MAIN PWB (4/5) (SHEET4) TU401-17 0.9 Vp-p MAIN PWB (5/5) (SHEET5) IC501-25 IC501-31 IC501-22 1.6 Vp-p 1.6 Vp-p 0.8 Vp-p DIGITAL PWB (1/4) (SHEET6)
  • Page 76 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY DISPLAY CATEGORY 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan (No.YA333) Printed in Japan...
  • Page 77 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 78 USING P.W. BOARD & REMOTE CONTROL UNIT ....................3-2 EXPLODED VIEW PARTS LIST ..........................3-3 EXPLODED VIEW ............................... 3-4 PRINTED WIRING BOARD PARTS LIST [LT-26X506/S] ..................3-5 MAIN P.W. BOARD ASS'Y (QAL0753-001) ...................... 3-5 DIGITAL SIGNAL P.W. BOARD ASS'Y (QAL0754-001) ................... 3-8 POWER P.W.

  • Page 79: Exploded View Parts List

    Part No. Part Name Description Local LC12405-001A-A TERMINAL COVER CM48269-001-A NOM LABEL LC32830-001A-A RATING LABEL GQ20001-001A-A RATING LABEL LC12404-001A-A REAR COVER LT-26X506/S LC12439-001A-A REAR COVER LT-32X506/S QYSBSF4012ZA TAP SCREW M4 x 12mm(x8) LC42063-001A SCREW LC42063-001A SCREW (x2) LC42296-001B-C STAND ASSY...

  • Page 80: Exploded View

    EXPLODED VIEW 109B 109A BACK BRACKET POWER PWB SHIELD MAIN BASE INSULATOR TOP FRAME BOTTOM FRAME This exploded view shows the LT-26X506. LT-32X506 has almost similar parts locations. 3-4(No.YA333)

  • Page 81: Printed Wiring Board Parts List [Lt-26X506/S]

    PRINTED WIRING BOARD PARTS LIST [LT-26X506 MAIN P.W. BOARD ASS'Y (QAL0753-001) Ref No. Part No. Part Name DescriptionLocal Ref No. Part No. Part Name DescriptionLocal C408 QETL1CM-107 E CAPACITOR 100uF 16V M C409 QETL1HM-106 E CAPACITOR 10uF 50V M IC401 AN5832SA C410 QETL1HM-106...
  • Page 82 Ref No. Part No. Part Name DescriptionLocal Ref No. Part No. Part Name DescriptionLocal C625 QETL1CM-476 E CAPACITOR 47uF 16V M R402 NRSA63J-221X MG RESISTOR 220Ω 1/16W J C626 QETL1HM-106 E CAPACITOR 10uF 50V M R403 NRSA63J-101X MG RESISTOR 100Ω 1/16W J C627 QETL1HM-106 E CAPACITOR...
  • Page 83 Ref No. Part No. Part Name DescriptionLocal Ref No. Part No. Part Name DescriptionLocal R624 NRSA63J-152X MG RESISTOR 1.5kΩ 1/16W J R785 NRSA63J-392X MG RESISTOR 3.9kΩ 1/16W J R625 CFS1/4CT52A472J MG RESISTOR 4.7kΩ 1/4W J R786 NRSA63J-471X MG RESISTOR 470Ω 1/16W J R626 CFS1/4CT52A472J MG RESISTOR...

  • Page 84: Digital Signal P.w. Board Ass'y (Qal0754-001)

    Ref No. Part No. Part Name DescriptionLocal Ref No. Part No. Part Name DescriptionLocal J505 YKC21-5855N JACK AUDIO IN C1010 C1608JF1H104ZT C CAPACITOR 0.1uF 50V K CFS1/4CT52A220J MG RESISTOR 22Ω 1/4W J C1011 C1608JF1H104ZT C CAPACITOR 0.1uF 50V K JP501 NRSA63J-0R0X MG RESISTOR 0Ω...
  • Page 85 Ref No. Part No. Part Name DescriptionLocal Ref No. Part No. Part Name DescriptionLocal C1131 C1608JF1H104ZT C CAPACITOR 0.1uF 50V K C1288 MVA16VC22MD55 E CAPACITOR 22uF 16V M C1132 C1608JF1H104ZT C CAPACITOR 0.1uF 50V K C1289 MVA16VC22MD55 E CAPACITOR 22uF 16V M C1133 C1608JF1H104ZT C CAPACITOR...
  • Page 86 Ref No. Part No. Part Name DescriptionLocal Ref No. Part No. Part Name DescriptionLocal R1064 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R1190 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R1065 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J R1191 NRSA63J-100X MG RESISTOR 10Ω 1/16W J R1066 NRSA63J-101X MG RESISTOR...

  • Page 87: Power P.w. Board Ass'y (Qal0756-001)

    Ref No. Part No. Part Name DescriptionLocal Ref No. Part No. Part Name DescriptionLocal L1027 LQM21FN2R2N00D COIL 2.2uH 150mA T0407-00001A DIODE L1028 LQM21FN2R2N00D COIL 2.2uH 150mA T0407-00001A DIODE L1030 LQM21FN2R2N00D COIL 2.2uH 150mA L1031 LQM21FN2R2N00D COIL 2.2uH 150mA T1001-00094A PHOTO COUPLER L1032 LQM21FN2R2N00D COIL 2.2uH 150mA...

  • Page 88: Key P.w. Board Ass'y (Qal0759-001)

    Ref No. Part No. Part Name DescriptionLocal Ref No. Part No. Part Name DescriptionLocal T2007-IC222J C RESISTOR 2.2KΩ J T2901-JC008A FERRITE BEAD T2007-JC470J C RESISTOR 47Ω J T2901-JC008A FERRITE BEAD T2007-IC103J C RESISTOR 10KΩ J T2901-IC009A FERRITE BEAD T2007-IC102J C RESISTOR 1KΩ...

  • Page 89: Printed Wiring Board Parts List [Lt-32X506/S]

    PRINTED WIRING BOARD PARTS LIST [LT-32X506 MAIN P.W. BOARD ASS'Y (QAL0753-001) Ref No. Part No. Part Name DescriptionLocal REFER TO PARTS LIST IN PAGE 3-5 FOR THIS P.W. BOARD. C1027 C1608JF1H104ZT C CAPACITOR 0.1uF 50V K C1028 C1608JF1H104ZT C CAPACITOR 0.1uF 50V K C1029 C1608JF1H104ZT...
  • Page 90 Ref No. Part No. Part Name DescriptionLocal Ref No. Part No. Part Name DescriptionLocal C1144 C1608JF1H104ZT C CAPACITOR 0.1uF 50V K C1304 MVA10VC47ME55 E CAPACITOR 47uF 10V M C1145 C1608JF1H104ZT C CAPACITOR 0.1uF 50V K C1305 MVA10VC47ME55 E CAPACITOR 47uF 10V M C1146 C1608JF1H104ZT C CAPACITOR...
  • Page 91 Ref No. Part No. Part Name DescriptionLocal Ref No. Part No. Part Name DescriptionLocal R1077 NRSA63J-680X MG RESISTOR 68Ω 1/16W J R1215 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J R1078 NRSA63J-680X MG RESISTOR 68Ω 1/16W J R1216 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J R1079 NRSA63J-680X MG RESISTOR...

  • Page 92: Power P.w. Board Ass'y (Qal0757-001)

    Ref No. Part No. Part Name DescriptionLocal Ref No. Part No. Part Name DescriptionLocal CW1020 WFG05A195 CONNECTOR T2203-FC104E C CAPACITOR 0.1uF 50V K FB1001 NQR0155-003X FERRITE CORE T2203-FC104E C CAPACITOR 0.1uF 50V K FB1005 NQR0155-003X FERRITE CORE T2201-PB103A C CAPACITOR 0.01uF 1KV Z FB1006 NQR0155-003X...

  • Page 93: Key P.w. Board Ass'y (Qal0759-001)

    Ref No. Part No. Part Name DescriptionLocal Ref No. Part No. Part Name DescriptionLocal T2007-IC103J C RESISTOR 10KΩ J T2007-IC273J C RESISTOR 27KΩ J TV49-00005A CHOKE BAR 5.5uH T2003-ET220A MF RESISTOR 22Ω 3W J TV09-00004A CHOKE BAR 5.0uH T2007-JC122J C RESISTOR 1.2KΩ...

  • Page 94: Packing

    PACKING PACKING PARTS LIST Ref.No. Part No. Part Name Description Local LC10181-047A-A PACKING CASE LT-26X506/S LC10181-048A-A PACKING CASE LT-32X506/S LC12417-001A-A CUSION ASSY 4pcs in 1set LT-26X506/S LC12421-001A-A CUSION ASSY 4pcs in 1set LT-32X506/S GG30097-003A-H POLY BAG LCT1831-001A-A INST SHEET English/French/Spanish...

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