D-Boss LT-40FLP Service Manual
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D-Boss LT-40FLP Service Manual

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COLOR TFT-LCD TV
SERVICE MANUAL
MODEL : LT-40FLP
CAUTION !!
BEFORE SERVICING THE TFT-LCD TV,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
SERVICE MANUAL
PAGE:1

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Summary of Contents for D-Boss LT-40FLP

  • Page 1 COLOR TFT-LCD TV SERVICE MANUAL MODEL : LT-40FLP CAUTION !! BEFORE SERVICING THE TFT-LCD TV, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. SERVICE MANUAL PAGE:1...

  • Page 2: Safety Precautions

    SAFETY PRECAUTIONS !! Important Safety Notice !! Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards.

  • Page 3: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION!! Before servicing receivers covered by this service manual, read and follow the SAFETY PRECAUTIONS on page 2 of this publication. General Servicing Precautions 1.Always unplug the receiver AC power cord from AC power source before; ⓐRemoving or reinstalling any component, circuit board module or any other receiver assembly. ⓑDisconnecting or reconnecting any receiver electrical plug or other electrical connection.

  • Page 4: Table Of Contents

    CONTENTS Safety precautions ----------------------------------------------------------- 2 Servicing precautions ------------------------------------------------------- 3 Contents ------------------------------------------------------------------------- 4 Specifications ----------------------------------------------------------------- 5 Location of control ---------------------------------------------------------- 9 Deassembly procedure ---------------------------------------------------- 12 Mechanical exploded view with part list ----------------------------- 19 Circuit descriptions --------------------------------------------------------- 21 Trouble shooting ------------------------------------------------------------- 58 Wire dressing ----------------------------------------------------------------- 63 Adjustment instruction with SVC mode ------------------------------ 65 Inspection instruction ------------------------------------------------------ 69...

  • Page 5: Specifications

    SPECIFICATIONS Note: Specifications and others are subject to change without notice for improvement. 1.Scope. This document is the specification of 40” TFT-LCD Color TV. 2.Power 1) Power requirement 275W 2) AC / DC SMPS Adapter. Input Frequency : 50/60㎐ Input Voltage: AC 100V ～ AC 240V (±10%) Output Voltage: DC 5V,12V, 30V, 3) Power cord Use UL listed and CSA certified detachable power cord type;...
  • Page 6 SPECIFICATIONS 9.Receiving RF TV system 40FLP Model System 1 PAL-B ○ 2 PAL-G ○ 3 PAL-I, I /I ○ 4 PAL-D ○ 5 PAL-K ○ 6 SECAM-B ○ 7 SECAM-G ○ 8 SECAM-D ○ 9 SECAM-K ○ 10 SECAM-K1 ○ 11 SECAM-I (6.0) ○...
  • Page 7 SPECIFICATIONS 11. PC Mode Scan Frequency & Timing 1) Scan Freq: H: 15 ～ 110 kHz / V: 56 ～ 75㎐ 2) Preset Timing Chart Mode Resolution H-Freq(KHz) V-Freq(KHz) 640x480 31.5KHz 60Hz 640x480 35 KHz 67Hz 640x480 37.9KHz 72Hz 640x480 37.5KHz 75Hz 720x400...
  • Page 8 SPECIFICATIONS 13. TFT – LCD Panel Character 1) Feature Size : 40 inches diagonal LCD Type : a-si TFT Active MatriX Pixel Pitch : 0.681mm (V) x 0.681mm(H) x RGB Pixel Format : 1280 horiz. By 768 vert. Pixels RGB strip arrangement Active Video Area : 871.68mm (H) x 523.008 mm (V) Surface treatment...

  • Page 9: Location Of Control

    LOCATION OF CONTROL All the function can be controlled with the remote controller. Some functions can also adjusted with the buttons on the controls on the TV front panel. 1-1. Remote controller Note !! : Before you use the remote controller, please install the batteries. 1.POWER: Turns the TV on from standby or off to standby mode.
  • Page 10 LOCATION OF CONTROL 1-2. Remote controller Note !! : Before you use the remote controller, please install the batteries. ▲▼ 13.PR ( Programme Up/Down): Selects a next programme or a menu item. 14.VOL ◀▶ ( Volume Up/Down): Adjusts the sound level or a menu Setting. 15.OK Accepts your selection or displays the current mode.
  • Page 11 LOCATION OF CONTROL Controller of Panel 1.ON/OFF: Switches TV set on or off. 2.MENU: Display a menu. ( Programme Up/Down): Selects a programme or a menu item. ( Volume Up/Down): Adjusts the volume. Adjusts menu settings. 5.TV/AV: Selects input signal source. Clears the menu from the screen.

  • Page 12: Deassembly Procedure

    DISASSEMBLY PROCEDURE 1. Disassembly procedure 1).Back cover Remove 8 Screw Remove 20 Screw & Power cord holder Power cord holder SERVICE MANUAL PAGE:12...
  • Page 13 DISASSEMBLY PROCEDURE 2-1). Metal plate & Rear chassis Remove 10 Screw Removal of Rear & Terminal metal plate SERVICE MANUAL PAGE:13...
  • Page 14 DISASSEMBLY PROCEDURE 2-2). Metal plate & Rear chassis Remove 6 Connectors Removal of Mount metal plate SERVICE MANUAL PAGE:14...
  • Page 15 DISASSEMBLY PROCEDURE 3).Main PWB & Connectors Remove 6 Screw Remove 6 Connectors SERVICE MANUAL PAGE:15...
  • Page 16 DISASSEMBLY PROCEDURE 4). SMPS Board & Power cord Remove 4 Screw & 2 Connectors Remove Power Cord SERVICE MANUAL PAGE:16...
  • Page 17 DISASSEMBLY PROCEDURE 5-1). LCD Module Remove 14 Screw Remove 4 brackets, then lift out LCD Module Removal of LCD Panel module mounting brackets SERVICE MANUAL PAGE:17...
  • Page 18 DISASSEMBLY PROCEDURE 5-2). LCD Module Front mask remains after removing LCD Module Front mask remains after removing LCD Module SERVICE MANUAL PAGE:18...

  • Page 19: Mechanical Exploded View With Part List

    MECHANICAL EXPLODED VIEW 1. Explode View PART 402- 410- PANV400W100 AYMALT34A01 400-011T AYCOLT32A01A 404-004A 450-001D 610-005A 610-005B 501-016T 407-004F 407-004G 407-004L 620-005A 407-004H 407-004J 401-003A 402-004Z 450-002C- 410-001K 410-002L 410-001R 410-002C NAME 004X,Y 001Q SPEAKE FRONT CONTROL BLOCK DECO SPEAKER STICKER SHIELD SHIELD...
  • Page 20 MECHANICAL EXPLODED VIEW 1-1,. Explode View - option SERVICE MANUAL PAGE:20...

  • Page 21: Circuit Descriptions

    CIRCUIT DESCRIPTIONS General Description for 40.0” color TFT LCD TV. The TFT LCD TV described in the followings is based on a Multi TV system, digital Control display, 40.0” diagonal. The TFT LCD TV is intended to be a finished product, Basically a display device mounted inside an enclosure which will provide the safety Requirements.
  • Page 22 CIRCUIT DESCRIPTIONS 1.SCALER SECTION. Device: MX88L285 Features: Advanced Image Scaling/ processing Automatic Image Optimization Frame buffer interface Microprocessor interface On-screen display Color processing 8-bit display outputs Main/Sub – input ports 1) Description The highly flexible MX88L285 is the mixed-signal product from the display processors. MX88L285 is a highly integrated display processor with advanced digital signal processing.
  • Page 23 CIRCUIT DESCRIPTIONS 3) Pin configuration. Reference line The left side The right side SERVICE MANUAL PAGE:23...
  • Page 24 CIRCUIT DESCRIPTIONS 3-1) Pin configuration < The left side > SERVICE MANUAL PAGE:24...
  • Page 25 CIRCUIT DESCRIPTIONS 3-2) Pin configuration < The right side > SERVICE MANUAL PAGE:25...
  • Page 26 CIRCUIT DESCRIPTIONS 4) Pin Functions. [ General Interface Pins ] [ MCU (CPU ) interface Pins . ] SERVICE MANUAL PAGE:26...
  • Page 27 CIRCUIT DESCRIPTIONS [ SDRAM / SGRAN interface Pins . ] SERVICE MANUAL PAGE:27...
  • Page 28 CIRCUIT DESCRIPTIONS [1. Main Input Interface – input pins for Main stream ] SERVICE MANUAL PAGE:28...
  • Page 29 CIRCUIT DESCRIPTIONS [2. Main Input Interface – input pins for Main stream ] SERVICE MANUAL PAGE:29...
  • Page 30 CIRCUIT DESCRIPTIONS [ Sub Input Interface – input pins for Sub stream ] SERVICE MANUAL PAGE:30...
  • Page 31 CIRCUIT DESCRIPTIONS [Display output interface] SERVICE MANUAL PAGE:31...
  • Page 32 CIRCUIT DESCRIPTIONS [Muti- function and General Input/Output Interface] [Auto-load Power – on screen Interface] SERVICE MANUAL PAGE:32...
  • Page 33 CIRCUIT DESCRIPTIONS [Power – ground pins] SERVICE MANUAL PAGE:33...
  • Page 34 CIRCUIT DESCRIPTIONS 2. MCU SECTION. Device: SDA55XX Features: Built-in teletext decoder. 8051 compatible. Internal ROM type. 1) Description The device provides an integrated general-purpose, fully 8051-compatible Microcontroller with television specific hardware features. Microcontroller has been enhanced to provide powerful features such as memory banking, data pointers and additional interrupts etc. Internal XRAM consists of up to 16 Kbytes.
  • Page 35 CIRCUIT DESCRIPTIONS 3) Pin configuration. [ Pin configuration PMQFP64] [ Logic symbol ] SERVICE MANUAL PAGE:35...
  • Page 36 CIRCUIT DESCRIPTIONS 4) Pin(Port) Functions SERVICE MANUAL PAGE:36...
  • Page 37 CIRCUIT DESCRIPTIONS 3. ADC SECTION. Device: AD9882KST – 100. Features: RGB Graphics Processing (A/D Converter). Scan Converters. Horizontal & Vertical Sync Processing Digital Visual Interface 1) Description Analog Interface The AD9882 is a complete 8-bit, 100 MSPS monolithic analog interface optimized for capturing RGB graphics signals from personal computers, workstations and DTV STB.
  • Page 38 CIRCUIT DESCRIPTIONS 2) Block Diagram. SERVICE MANUAL PAGE:38...
  • Page 39 CIRCUIT DESCRIPTIONS 3) Pin configuration SERVICE MANUAL PAGE:39...
  • Page 40 CIRCUIT DESCRIPTIONS 4) Pin Functions SERVICE MANUAL PAGE:40...
  • Page 41 CIRCUIT DESCRIPTIONS 4. VIDEO PROCESSOR SECTION. Device: VSP 9417B Features: Different application modes Data acquisition connectivity Multi-standard color decoder with 4H comb filter Processing of two input channels independently Second Multi-standard color decoder for slave channel Scan-rate-conversion (version dependent) Three D/A converters Digital output 1) Description 50/60HZ derivatives are also avail-able.
  • Page 42 CIRCUIT DESCRIPTIONS 2) Block Diagram. SERVICE MANUAL PAGE:42...
  • Page 43 CIRCUIT DESCRIPTIONS 3) Pin configurations SERVICE MANUAL PAGE:43...
  • Page 44 CIRCUIT DESCRIPTIONS 4-1) Pin Functions. SERVICE MANUAL PAGE:44...
  • Page 45 CIRCUIT DESCRIPTIONS 4-2) Pin Functions SERVICE MANUAL PAGE:45...
  • Page 46 CIRCUIT DESCRIPTIONS 4-3) Pin Functions SERVICE MANUAL PAGE:46...
  • Page 47 CIRCUIT DESCRIPTIONS 5. FRAME RATE CONVERTER SECTION. Device: FRC 9429A Features: Flim Judder Cancellation Motion adaptive upconversion as global fall back Automatic Film Mode Detection Full internal 4:2:2 processing 656,601 compatible PAL/NTSC inputs and outputs Embedded field memories Macrovision encoding Embedded 8-bit Microcontroller 1) Description The FRC 94xxA comprises all mail functionalities of a high end frame rate converter in one...
  • Page 48 CIRCUIT DESCRIPTIONS 2) Block Diagram. SERVICE MANUAL PAGE:48...
  • Page 49 CIRCUIT DESCRIPTIONS 3) Pin configurations SERVICE MANUAL PAGE:49...
  • Page 50 CIRCUIT DESCRIPTIONS 4-1) Pin Functions. SERVICE MANUAL PAGE:50...
  • Page 51 CIRCUIT DESCRIPTIONS 4-2) Pin Functions SERVICE MANUAL PAGE:51...
  • Page 52 CIRCUIT DESCRIPTIONS 4-3) Pin Functions SERVICE MANUAL PAGE:52...
  • Page 53 CIRCUIT DESCRIPTIONS 6. AUDIO PROCESSOR SECTION. Device: MSP3410D. Features: Integrated A/D converter for sound-IF inputs Automatic Gain Control (AGC) for analog IF input FM demodulation 1) Description The MSP 3410D is designed to perform demodulation of FM or AM-Mono TV sound. Alternatively, two-carrier FM systems according to the German or Korean terrestrial specs or the satellite specs can be processed with the MSP 3410D.
  • Page 54 CIRCUIT DESCRIPTIONS 3) Pin configurations SERVICE MANUAL PAGE:54...
  • Page 55 CIRCUIT DESCRIPTIONS 4) Pin Functions. SERVICE MANUAL PAGE:55...
  • Page 56 CIRCUIT DESCRIPTIONS SERVICE MANUAL PAGE:56...
  • Page 57 CIRCUIT DESCRIPTIONS SERVICE MANUAL PAGE:57...

  • Page 58: Trouble Shooting

    TROUBLE SHOOTING SERVICE MANUAL PAGE:58...
  • Page 59 TROUBLE SHOOTING SERVICE MANUAL PAGE:59...
  • Page 60 TROUBLE SHOOTING SERVICE MANUAL PAGE:60...
  • Page 61 TROUBLE SHOOTING SERVICE MANUAL PAGE:61...
  • Page 62 TROUBLE SHOOTING SERVICE MANUAL PAGE:62...

  • Page 63: Wire Dressing

    WIRE DRESSING 1. Wire Dressing Note: Using acetate Tape No1,No3,No5, No7. Using Copper Tape No2, No4. (Conducted tape) Using Copper Tape No6. (Conducted tape) Unit : mm SERVICE MANUAL PAGE:63...
  • Page 64 WIRE DRESSING 1) Wire Dressing for Left main speaker & sub speaker. ( No.1) 2) Wire Dressing for Right main speaker & sub speaker. ( No.2 ) 3) Wire Dressing for Inverter ( No.3) 4) Wire Dressing for Key control & Inverter. ( No.4) 5) Wire Dressing for LVDS.

  • Page 65: Adjustment Instruction With Svc Mode

    ADJUSTMENT INSTRUCTION WITH DEFAULT FACTORY DATA 1.SVC mode data Adjustment NOTE!! When the EEPROM has been replaced, the SVC data should be restored as the function of individual system and specification. [ Enter and exit SVC mode ] Note: into the SVC mode, Initialize with default data. 1) Press 5 Seconds MENU buttons on both TV set and Remote Controller at the same time to get into SVC mode.
  • Page 66 ADJUSTMENT INSTRUCTION WITH DEFAULT FACTORY DATA 2-2.SVC Data Table 100PR 200PR 200PR Not apply to TEXT TEXT Apply to TEXT TELETEXT TOP OFF TELETEXT TOP ON Apply to COMPONENT SCART Apply to SCART Not apply to ACMS ACMS DATA 4 Apply to ACMS Used except for CHINESS or AUSTRALIA CH+AU...
  • Page 67 ADJUSTMENT INSTRUCTION WITH DEFAULT FACTORY DATA 2-3.SVC Data Table Initialize Factory with PAGE ITEM outgoing REMARK default setting data Not apply to DUAL option DUAL Apply to DUAL option Not apply to MONO option MONO Apply to MONO option Not apply to NICAM STEREO option A2 ST Apply to NICAM STEREO option Sound curve option 1...
  • Page 68 ADJUSTMENT INSTRUCTION WITH DEFAULT FACTORY DATA 2-4. SVC Data Table Initialize Factory with PAGE ITEM outgoing REMARK default setting data Frequency voltage Disable/Enable(0-1) Fix (All Model application) D-TV D-TV Disable/Enable (0-1) Violence Disable/Enable (0-1) VCHIP WOFER Fix (All Model application) Used SS-40 L01 PANEL SS-40 L01 Used SS-40 L02 PANEL...

  • Page 69: Inspection Instruction

    INSPECTION INSTRUCTION 1. Supplied Accessories Note: Make Sure the following accessories are provided with Product. SERVICE MANUAL PAGE:69...
  • Page 70 INSPECTION INSTRUCTION 2. Packing condition BOX FRONT SET FRONT SET FRONT PACKING FRONT <picture2> SET insert in BOX PACKING PACKING PACKING BOTTOM “L” BOTTOM “M” BOTTOM “R” <picture 1> PACKING insert in BOX SET FRONT SET FRONT Insert position for the ACCESSORY BOX PACKING PACKING PACKING...

  • Page 71: Pcb Layout

    PCB LAYOUT 3-1. CONTROL PCB 1 ) TOP < COMP > < PATTERN > 2) BOTTOM < COMP > < PATTERN > SERVICE MANUAL PAGE:71...
  • Page 72 PCB LAYOUT 3-1. Main PCB ( TOP COMP ) SERVICE MANUAL PAGE:72...
  • Page 73 PCB LAYOUT 3-2. Main PCB (TOP PATTEN) SERVICE MANUAL PAGE:73...
  • Page 74 PCB LAYOUT 3-3. Main PCB ( BOTTOM COMP ) SERVICE MANUAL PAGE:74...
  • Page 75 PCB LAYOUT 3-4. Main PCB ( BOTTOM PATTEN) SERVICE MANUAL PAGE:75...

  • Page 76: Part Appearance

    PART APPEARANCE 1-1. Part appearance A1504S C3875S C102S DUAL P-CH 30V MOSFET Regulator for Tuning Voltage SI4925DY BA6161F 2N7000 3A REGULATOR AP1501 ( 5V ) AP1501A ( 12V & 5V ) Sync-signal separator with AFC and Sync detector EEPROM 24C16W ,24C02W LA7217 SERVICE MANUAL PAGE:76...
  • Page 77 PART APPEARANCE 1-2. Part appearance Voltage Reg Voltage Detector Voltage Detector KIA78L05F KIA7042AF KIA7027AF Schottky Rectifier B340 TTL LOGIC IC 74F08 DUAL LOW VOLTAGE POWER AMPLIFIER ( MINIDIP) VOLTAGE REGULATOR - 1A IRU-1010 (1.8V / 2.5V /3.3V) TDA2822 SERVICE MANUAL PAGE:77...
  • Page 78 PART APPEARANCE 1-3. Part appearance HIGH SIDE SMART POWER SOLID STATE RELAY VERTICAL VN02AN INPUT SELECTOR SWITCH FOR HIGH DEFINITION DISPLAY VOLTALGE REGULATOR A78R08 (8V) BA7657F SERVICE MANUAL PAGE:78...

  • Page 79: Replacement Part List

    REPLACEMENT PART LIST 1.Parts List (Assemble process) LEVEL PART NO PART NAME DESCRIPTION Q,TY 300-003R 40 ACCESSORY BOX BOX, ACCESSORY 300-018B 40,COLOR,NO BRAND BOX, GIFT 310-016A 40",F-MODEL,TOP-L PACKING, TOP "L" 310-016B 40",F-MODEL,TOP-M PACKING, TOP "M" 310-016C 40",F-MODEL,TOP-R PACKING, TOP "R" 310-016D 40",F-MODEL,BOTTOM-L PACKING, BOTTOM "L"...
  • Page 80 REPLACEMENT PART LIST 2.Parts List (Assemble process) LEVEL PART NO PART NAME DESCRIPTION Q,TY 626-003A IVORY,2.0M 18*1 Pin CABLE, DVI 627-001A 1.8M, BK CABLE, PC-SOUND AYBCLT40A01A LT-40*EP/*LP Back Body,40inch AYCALT40A01A 40",F-MODEL,PAL,LG Front body,40inch AYCOLT32A01A F/N MODEL,111A34B30 CONTROL PCB ASSY AYMALT34A01B 40*LP,SCART+MSP3410 MAIN PCB ASSY CON02P200AOY 40",SPK,2-PIN,900MM...
  • Page 81 REPLACEMENT PART LIST 3. Parts List (Main PCB) LEVEL PART NO PART NAME DESCRIPTIONS LOCATION NO Q,TY LT-40FLP, AYMALT34A01B MAIN PCB ASS'Y SCART+ MAP3410D GRLT34AA001A MAIN AUTO INSERT GR,40" MAIN A/I 0LBSS3580RTR BFD-3580 R2F BEAD CORE, RADIAL L801,L803,L804,L805 1DDRO41480TA 1N4148-GSD...
  • Page 82 REPLACEMENT PART LIST 4. Parts List (Main PCB) LEVEL PART NO PART NAME DESCRIPTIONS LOCATION NO Q,TY 0CQSS104KKTR 0.1UF 100V CAPACITOR, MYLER C672,C676 1ICSA42820AD LA4282, SANYO IC, SOUND AMP IC652 410-001J PB 3*8 SCREW IC652 420-001A LA4282 42*16 HEAT SINK IC652 498-001A Silicon Grease...
  • Page 83 REPLACEMENT PART LIST 5. Parts List (Main PCB) LEVEL PART NO PART NAME DESCRIPTIONS LOCATION NO Q,TY 0CHSS020DCTS 2PF,1608 CAPACITOR, CHIP C642,C643 C9,C10,C505,C506,C 0CHSS101DJTS 100PF,1608 CAPACITOR, CHIP 11,C639,C641,L1004 C607,C609,C611,C61 2,C645,C646,C681,C6 0CHSS102DKTS 1000PF,1608 CAPACITOR, CHIP 82,C2003,C1041,C10 42,1043,C1044 C402,C451,C801,C11 0CHSS103DKTS 0.01UF,1608 CAPACITOR, CHIP 51,C1201,C371,C404, C695,C932 C1,C101,C1012,C101...
  • Page 84 REPLACEMENT PART LIST 6. Parts List (Main PCB) LEVEL PART NO PART NAME DESCRIPTIONS LOCATION NO Q,TY 0CHSS152DKTS 1500PF,1608 CAPACITOR, CHIP C602,C619,C636 0CHSS220DJTS 22PF,1608 CAPACITOR, CHIP C235,C236,C503,C504 0CHSS221DJTS 220PF,1608 CAPACITOR, CHIP C604 0CHSS224DZTS 0.22UF,1608 CAPACITOR, CHIP 0CHSS330DJTS 33PF,1608 CAPACITOR, CHIP C13,C14 C624,C625,C626,C627, 0CHSS334DZTS...
  • Page 85 REPLACEMENT PART LIST 7. Parts List (Main PCB) LEVEL PART NO PART NAME DESCRIPTIONS LOCATION NO Q,TY 0RHSS010DJTS 1 OHM, 1608 J RESISTOR, CHIP R1013 0RHSS100DJTS 10 OHM, 1608 J RESISTOR, CHIP R609,R623 R17,R19,R22,R33,R34,R3 5,R37,R39,R40,R41,R42, R43,R47,R48,R49,R50,R6 0RHSS101DJTS 100 OHM, 1608 J RESISTOR, CHIP 5,R901,R1014,R1042,R36 ,R38,R44,R45,R46,R604,...
  • Page 86 REPLACEMENT PART LIST 8. Parts List (Main PCB) LEVEL PART NO PART NAME DESCRIPTIONS LOCATION NO Q,TY AL102,AL103,AL104,A L108,AL109,AL110,AL 114,AL115,AL171,AL1 72,AL173,AL174,AL17 5,AL176,AL177,AL178 ,AL179,AL180,AL181, AL182,AL183,AL184,A 0RYSS330FJTS 33 OHM, 3216 RESISTOR, ARRAY CHIP L185,AL186,AL187,AL 188,AL189,AL190,AL1 91,AL192,AL193,AL19 4,AL195,AL196,AL197 ,AL198,AL201,AL202, AL01,AL02,AL501,AL5 02,AL505 Q201,Q202,Q621,Q62 0TRKE1504STS KTA1504 TRANSISTOR, CHIP 2,Q623,Q203...
  • Page 87 REPLACEMENT PART LIST 9. Parts List (Main PCB) LEVEL PART NO PART NAME DESCRIPTIONS LOCATION NO Q,TY WAFYH30125AS 30P, P125, ANGLE WAFER, PIN P451 GRLT34AS001E TEXT SMD INSERT GR, 40" TEXT S/I 0RHSS000DJTS 0 OHM, 1608 J RESISTOR, CHIP 0RHSS221DJTS 220 OHM, 1608 J RESISTOR, CHIP 0RHSS392DJTS...
  • Page 88 REPLACEMENT PART LIST 10. Parts List (Main PCB ) LEVEL PART NO PART NAME DESCRIPTIONS LOCATION NO Q,TY GRLT34AS001M TUNER SMD INSERT GR,40"TUNER.SECAM S/ 0CASH100CMTS 10UF 16V CAPACITOR,CAN 0CASH221AMTS 220UF 10V CAPACITOR,CAN C1060 0CASH4R7HMTS 4.7UF 50V CAPACITOR,CAN C1015 0CHSS104DZTS 0.1UF,1608 CAPACITOR, CHIP 0CHSS334DZTS 0.33UF,1608...
  • Page 89 REPLACEMENT PART LIST 11. Parts List (Control PCB ) LEVEL PART NO PART NAME DESCRIPTIONS LOCATION NO Q,TY AYCOLT32A01B CONTROL PCB ASS'Y F/N MODEL, 111-A34A-30 CONTROL GRLT32AS002A GR, 30" Control S/I CTRL,SMD INSERT 111-A34B PCB, CONTROL H/M MODEL CONTROL 0TRKE3875STS TRANSISTOR, CHIP KTC3875S Q3001,Q3002,Q3004...

  • Page 90: Block Diagram

    BLOCK DIAGRAM 1. Block Diagram SERVICE MANUAL PAGE:90...

  • Page 91: Connection Diagram

    CONNECTION DIAGRAM 1. Connection diagram PANEL INVERTER 14PIN 30PIN 4PIN 2PIN 3PIN MAIN SPEAKER SMPS MAIN Board Board 14PIN 3 PIN 10 PIN 5 PIN SPEAKER CONTROL Power Cord SERVICE MANUAL PAGE:91...

  • Page 92: Schemetic Diagram

    SCHEMATIC DIAGRAM 1.Schematic Diagram SERVICE MANUAL PAGE:92...

  • Page 93: Wave Form

    WAVE FORM NOTE!!: You can find number from Schematic Diagram 1)IC101 PIN27 - MCKA 2)IC801 PIN26 - MCLK 3)IC101 PIN 24 - MCKE 4) )IC101 PIN 23 - MCAS 5) IC101 PIN 380 - LCLKA 6) ) IC101 PIN 378 - LCLKA SERVICE MANUAL PAGE:93...
  • Page 94 WAVE FORM NOTE!!: You can find number from Schematic Diagram 7) IC101 PIN 369 – B signal OUT 8) IC101 PIN 346 – G signal OUT 9) IC101 PIN 327 - LDTG 10)IC101 PIN 326 H- sync 11) IC101 PIN 328 R signal out 12)IC 101 pin 301 V-sync SERVICE MANUAL PAGE:94...
  • Page 95 WAVE FORM NOTE!!: You can find number from Schematic Diagram 13) IC 201 pin 40 TELETEXT B signal input 14) IC 201 pin 39 TELETEXT G signal input 15) IC 201 pin 38 TELETEXT R signal.input 16) IC 201 pin 37 TELETEXT FB signal input 17) IC201 pin 54 R signal output 18) IC 201 pin 51 clock output SERVICE MANUAL...
  • Page 96 WAVE FORM NOTE!!: You can find number from Schematic Diagram 19) IC201 pin 23 V-output 20) IC201 pin 17 H-output 21) IC201 pin 80 Component Y - signal input 22) IC201 pin 78 Component V - signal input 23) IC201 pin 82 Component U - signal input 24) IC201 pin 55 S-Video C signal input SERVICE MANUAL PAGE:96...
  • Page 97 WAVE FORM NOTE!!: You can find number from Schematic Diagram 25) IC201 PIN 56 S-Video Y signal input 26) IC691 pin 3 HEAD_PHONE L -sound output 27) IC691 pin 1 HEAD_PHONE R -sound output 28) IC651& 652 pin 8 MUTE 29) IC601 pin 67 SIF signal input 30) IC601 pin 56&57 AV1 sound input(video) SERVICE MANUAL...
  • Page 98 WAVE FORM NOTE!!: You can find number from Schematic Diagram 32) IC601 pin 47&48 sound input ( PC ) 31) IC601 pin 50&51 sound input(phone -2P) ( XGA 1024*768@60HZ ) 33) IC601 pin 28 L -sound output 34) IC601 pin 27 R- sound output 35) IC351 pin 99 R signal ouput 36) IC351 pin 10 G signal ouput ( XGA 1024*768@60HZ)
  • Page 99 WAVE FORM NOTE!!: You can find number from Schematic Diagram 37) IC351 pin 20 B signal ouput 38) IC301 5V (VCC) ( XGA 1024*768@60HZ) 39) IC351 RX0+ signal 40) IC351 RX2+ signal ( XGA 1024*768@60HZ ) ( XGA 1024*768@60HZ ). 41) IC351 pin 85 data clock 42) IC351 pin 86 Disenable ( XGA 1024*768@60HZ)
  • Page 100 WAVE FORM NOTE!!: You can find number from Schematic Diagram 43) IC351 pin 87 V - sync output 44) IC351 pin 88 H - sync output ( XGA 1024*768@60HZ) ( XGA 1024*768@60HZ) 45) IC351 pin 89 SOG sync output 46) IC01 pin 11 SDA clock output ( XGA 1024*768@60HZ) 47) IC01 pin 11 SCL clock output 48) IC171 pin 2 data input.
  • Page 101 WAVE FORM NOTE!!: You can find number from Schematic Diagram 49) )IC172 pin 2 data input. 50) IC402 pin 37 ARD output 51) IC402 pin 41 ARC output 52) P1002 Component Y signal input 53) P1002 Component U signal input 54) ) P1002 Component V signal input SERVICE MANUAL PAGE:101...
  • Page 102 WAVE FORM NOTE!!: You can find number from Schematic Diagram 55) P1014 pin 2 MXCS clock 56) P1014 pin 3 MXDA clock 58) P901 pin 1 R signal input 57) P1014 pin 4 MXCL clock ( XGA 1024*768@60HZ) 60) P901 pin 3 B signal input 59) P901 pin 2 G signal input ( XGA 1024*768@60HZ) ( XGA 1024*768@60HZ)
  • Page 103 WAVE FORM NOTE!!: You can find number from Schematic Diagram 61) P901 pin 13 H-sync input 62) P901 pin 14 V-sync input ( XGA 1024*768@60HZ) ( XGA 1024*768@60HZ) 63) P1004 pin 10 CVBS TV signal input SERVICE MANUAL PAGE:103...

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