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D-Boss LT-40FLP, Руководство по обслуживанию

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SERVICE MANUAL 

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. 

 

 

 

 

Содержание LT-40FLP

Страница 1: ...SERVICE MANUAL 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...

Страница 2: ...sed metallic part Any voltage measured must not exceed 0 75 volt RMS which is corresponds to 0 5mA In case any measurement is out of the limits specified there is possibility of shock hazard and the s...

Страница 3: ...supply heatsink in this receiver Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrost...

Страница 4: ...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 PCB L...

Страница 5: ...WG For AC 120V area Use VDE listed detachable power cord type HO5VV F 3 conductors 18AWG for AC 220 240V area 3 Tuning system FVS 100 Program 4 Sound output 10W 10Wrms Stereo Max 5 Antenna input imped...

Страница 6: ...M B 7 SECAM G 8 SECAM D 9 SECAM K 10 SECAM K1 11 SECAM I 6 0 12 NTSC 3 58 4 5 13 NTSC 3 58 5 5 14 NTSC 3 58 6 0 15 NTSC 3 58 6 5 16 NTSC 3 58 4 5 5 0 17 NTSC 4 43 5 5 18 NTSC 4 43 6 0 19 NTSC 4 43 6 5...

Страница 7: ...8 1024x768 48 4KHz 56 5KHz 60 2KHz 60Hz 70Hz 75Hz WXGA 1280x768 47 7KHZ 60Hz Note If the set is cold there may be a small flicker when the set is switched on This is Normal there is nothing wrong with...

Страница 8: ...iz By 768 vert Pixels RGB strip arrangement Active Video Area 871 68mm H x 523 008 mm V Surface treatment Haze 44 Hard coating 3H Response Time Typ Tr 15 ms Tf 8 ms Viewing Angle CR 10 Hor Left Right...

Страница 9: ...MUTE Turns the sound on and off 3 NUMBER buttons Select channel numbers 4 PSM Picture Status Memory Recalls your preferred picture setting 5 SSM Sound Status Memory Recalls your preferred sound settin...

Страница 10: ...s see the TELETEXT Selection 17 Q VIEW Returns to the previously viewed Programme Note TELETEXT mode The Q VIEW button is used for TELETEXT function 18 LIST Displays the program list menu 19 PIP Displ...

Страница 11: ...m 4 VOL Volume Up Down Adjusts the volume Adjusts menu settings 5 TV AV Selects input signal source Clears the menu from the screen 6 POWER INDICATOR Illuminates red when the TV is in power standby mo...

Страница 12: ...SERVICE MANUAL PAGE 12 DISASSEMBLY PROCEDURE 1 Disassembly procedure 1 Back cover Remove 8 Screw Remove 20 Screw Power cord holder Power cord holder...

Страница 13: ...SERVICE MANUAL PAGE 13 DISASSEMBLY PROCEDURE 2 1 Metal plate Rear chassis Remove 10 Screw Removal of Rear Terminal metal plate...

Страница 14: ...SERVICE MANUAL PAGE 14 DISASSEMBLY PROCEDURE 2 2 Metal plate Rear chassis Remove 6 Connectors Removal of Mount metal plate...

Страница 15: ...SERVICE MANUAL PAGE 15 3 Main PWB Connectors DISASSEMBLY PROCEDURE Remove 6 Screw Remove 6 Connectors...

Страница 16: ...SERVICE MANUAL PAGE 16 4 SMPS Board Power cord DISASSEMBLY PROCEDURE Remove 4 Screw 2 Connectors Remove Power Cord...

Страница 17: ...SERVICE MANUAL PAGE 17 DISASSEMBLY PROCEDURE 5 1 LCD Module Remove 4 brackets then lift out LCD Module Removal of LCD Panel module mounting brackets Remove 14 Screw...

Страница 18: ...SERVICE MANUAL PAGE 18 DISASSEMBLY PROCEDURE 5 2 LCD Module Front mask remains after removing LCD Module Front mask remains after removing LCD Module...

Страница 19: ...KER SPEAKE R STICKER SHIELD SHIELD MAIN PCB AC DC SHIELD SHIELD BACK CORD DECO SCREW SCREW SCREW SCREW SCREW DESCRIPTIO N DECO T B COVER IR PCB PCB KNOB PLATE 20W 8 10W 8 LOGO PANEL FIX BRKT FRONT MOU...

Страница 20: ...SERVICE MANUAL PAGE 20 MECHANICAL EXPLODED VIEW 1 1 Explode View option...

Страница 21: ...all be composed entirely of solid state components These components shall have a history of reliable service in identity applications and shall be applied in the circuits 1 SCALER SECTION 2 MCU SECTIO...

Страница 22: ...e Sources and displaying them on any flat panel display For the conversion of VGA input signals to higher resolution outputs the MX88L285 uses a Smart scaling TM 3 filter scaling algorithm that accept...

Страница 23: ...SERVICE MANUAL PAGE 23 CIRCUIT DESCRIPTIONS 3 Pin configuration Reference line The left side The right side...

Страница 24: ...SERVICE MANUAL PAGE 24 CIRCUIT DESCRIPTIONS 3 1 Pin configuration The left side...

Страница 25: ...SERVICE MANUAL PAGE 25 CIRCUIT DESCRIPTIONS 3 2 Pin configuration The right side...

Страница 26: ...SERVICE MANUAL PAGE 26 CIRCUIT DESCRIPTIONS 4 Pin Functions General Interface Pins MCU CPU interface Pins...

Страница 27: ...SERVICE MANUAL PAGE 27 CIRCUIT DESCRIPTIONS SDRAM SGRAN interface Pins...

Страница 28: ...SERVICE MANUAL PAGE 28 CIRCUIT DESCRIPTIONS 1 Main Input Interface input pins for Main stream...

Страница 29: ...SERVICE MANUAL PAGE 29 CIRCUIT DESCRIPTIONS 2 Main Input Interface input pins for Main stream...

Страница 30: ...SERVICE MANUAL PAGE 30 CIRCUIT DESCRIPTIONS Sub Input Interface input pins for Sub stream...

Страница 31: ...SERVICE MANUAL PAGE 31 CIRCUIT DESCRIPTIONS Display output interface...

Страница 32: ...SERVICE MANUAL PAGE 32 CIRCUIT DESCRIPTIONS Muti function and General Input Output Interface Auto load Power on screen Interface...

Страница 33: ...SERVICE MANUAL PAGE 33 CIRCUIT DESCRIPTIONS Power ground pins...

Страница 34: ...re 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 Device has an in...

Страница 35: ...SERVICE MANUAL PAGE 35 CIRCUIT DESCRIPTIONS 3 Pin configuration Pin configuration PMQFP64 Logic symbol...

Страница 36: ...SERVICE MANUAL PAGE 36 CIRCUIT DESCRIPTIONS 4 Pin Port Functions...

Страница 37: ...offers full sync processing for composite sync and sync on green applications A clamp signal is generated internally or may be provided by the user through the CLAMP input pin This interface is fully...

Страница 38: ...SERVICE MANUAL PAGE 38 CIRCUIT DESCRIPTIONS 2 Block Diagram...

Страница 39: ...SERVICE MANUAL PAGE 39 CIRCUIT DESCRIPTIONS 3 Pin configuration...

Страница 40: ...SERVICE MANUAL PAGE 40 CIRCUIT DESCRIPTIONS 4 Pin Functions...

Страница 41: ...cture improvements temporal noise reduction as well as A D and D A converter adaptive 4H comb filter Y C separator with adjustable vertical peaking The either come form a CVBS Y C RGB or YUV input or...

Страница 42: ...SERVICE MANUAL PAGE 42 CIRCUIT DESCRIPTIONS 2 Block Diagram...

Страница 43: ...SERVICE MANUAL PAGE 43 CIRCUIT DESCRIPTIONS 3 Pin configurations...

Страница 44: ...SERVICE MANUAL PAGE 44 CIRCUIT DESCRIPTIONS 4 1 Pin Functions...

Страница 45: ...SERVICE MANUAL PAGE 45 CIRCUIT DESCRIPTIONS 4 2 Pin Functions...

Страница 46: ...SERVICE MANUAL PAGE 46 CIRCUIT DESCRIPTIONS 4 3 Pin Functions...

Страница 47: ...icrocontroller 1 Description The FRC 94xxA comprises all mail functionalities of a high end frame rate converter in one monolithic IC The FRC 94xxA is ideally suited to work in conjunction with differ...

Страница 48: ...SERVICE MANUAL PAGE 48 CIRCUIT DESCRIPTIONS 2 Block Diagram...

Страница 49: ...SERVICE MANUAL PAGE 49 CIRCUIT DESCRIPTIONS 3 Pin configurations...

Страница 50: ...SERVICE MANUAL PAGE 50 CIRCUIT DESCRIPTIONS 4 1 Pin Functions...

Страница 51: ...SERVICE MANUAL PAGE 51 CIRCUIT DESCRIPTIONS 4 2 Pin Functions...

Страница 52: ...SERVICE MANUAL PAGE 52 CIRCUIT DESCRIPTIONS 4 3 Pin Functions...

Страница 53: ...an be processed with the MSP 3410D Digital demodulation and decoding of NICAM coded TV stereo sound is done only by the MSP 3410 The MSP 3410D offers a powerful feature to calculate the carrier field...

Страница 54: ...SERVICE MANUAL PAGE 54 CIRCUIT DESCRIPTIONS 3 Pin configurations...

Страница 55: ...SERVICE MANUAL PAGE 55 CIRCUIT DESCRIPTIONS 4 Pin Functions...

Страница 56: ...SERVICE MANUAL PAGE 56 CIRCUIT DESCRIPTIONS...

Страница 57: ...SERVICE MANUAL PAGE 57 CIRCUIT DESCRIPTIONS...

Страница 58: ...SERVICE MANUAL PAGE 58 TROUBLE SHOOTING...

Страница 59: ...SERVICE MANUAL PAGE 59 TROUBLE SHOOTING...

Страница 60: ...SERVICE MANUAL PAGE 60 TROUBLE SHOOTING...

Страница 61: ...SERVICE MANUAL PAGE 61 TROUBLE SHOOTING...

Страница 62: ...SERVICE MANUAL PAGE 62 TROUBLE SHOOTING...

Страница 63: ...SERVICE MANUAL PAGE 63 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 5 4 2 1 7 3 6...

Страница 64: ...3 Wire Dressing for Inverter No 3 4 Wire Dressing for Key control Inverter No 4 5 Wire Dressing for LVDS No 5 6 Wire Dressing for Left Right main speaker sub speaker No 6 7 Wire Dressing for Main Pow...

Страница 65: ...oing setting Initialize with default data Ex REMARK AGC 15 15 Variable Data 0 31 RD 127 127 PC Contrast Coefficient RED 0 255 GD 127 127 PC Contrast Coefficient GREEN 0 255 BD 127 127 PC Contrast Coef...

Страница 66: ...TEXT 0 TELETEXT TOP OFF TOP 1 1 1 TELETEXT TOP ON 0 Apply to COMPONENT SCART 1 1 1 Apply to SCART 0 Not apply to ACMS ACMS 1 1 1 Apply to ACMS 0 Used except for CHINESS or AUSTRALIA CH AU 0 0 1 Used C...

Страница 67: ...Sweden Norway Denmark Finland Portugal Rumania Israel Hungary Czech Russian 6 YAHOO YAHOO 7 EU 6EA ENGLISH GERMAN FRANCE ITALY SPAIN Netherland 8 KOREA ENGLISH KOREA 9 JAPAN ONLY SELECT JAPAN 10 USA E...

Страница 68: ...NEL 1 SS 40 L02 Used SS 40 L02 PANEL 2 SS 42 Used SS 42 PANEL 3 LG 46 Used LG 46 PANEL 4 RESERVED 5 RESERVED 6 RESERVED 7 RESERVED 8 RESERVED 9 RESERVED 10 RESERVED 11 RESERVED 12 RESERVED 13 RESERVED...

Страница 69: ...SERVICE MANUAL PAGE 69 INSPECTION INSTRUCTION 1 Supplied Accessories Note Make Sure the following accessories are provided with Product...

Страница 70: ...t in BOX SET FRONT PACKING FRONT BOX FRONT SET FRONT PACKING BOTTOM L PACKING BOTTOM R PACKING BOTTOM M SET FRONT Insert position for the ACCESSORY BOX PACKING TOP L PACKING TOP R PACKING TOP M SET FR...

Страница 71: ...SERVICE MANUAL PAGE 71 PCB LAYOUT 3 1 CONTROL PCB 1 TOP COMP PATTERN 2 BOTTOM COMP PATTERN...

Страница 72: ...SERVICE MANUAL PAGE 72 PCB LAYOUT 3 1 Main PCB TOP COMP...

Страница 73: ...SERVICE MANUAL PAGE 73 PCB LAYOUT 3 2 Main PCB TOP PATTEN...

Страница 74: ...SERVICE MANUAL PAGE 74 PCB LAYOUT 3 3 Main PCB BOTTOM COMP...

Страница 75: ...SERVICE MANUAL PAGE 75 PCB LAYOUT 3 4 Main PCB BOTTOM PATTEN...

Страница 76: ...ANCE 1 1 Part appearance C3875S A1504S C102S DUAL P CH 30V MOSFET SI4925DY 2N7000 Regulator for Tuning Voltage BA6161F 3A REGULATOR AP1501 5V AP1501A 12V 5V EEPROM 24C16W 24C02W Sync signal separator...

Страница 77: ...CE 1 2 Part appearance Voltage Detector KIA7027AF Voltage Detector KIA7042AF Voltage Reg KIA78L05F Schottky Rectifier B340 TTL LOGIC IC 74F08 VOLTAGE REGULATOR 1A IRU 1010 1 8V 2 5V 3 3V DUAL LOW VOLT...

Страница 78: ...ERVICE MANUAL PAGE 78 PART APPEARANCE 1 3 Part appearance HIGH SIDE SMART POWER SOLID STATE RELAY VERTICAL VN02AN VOLTALGE REGULATOR A78R08 8V INPUT SELECTOR SWITCH FOR HIGH DEFINITION DISPLAY BA7657F...

Страница 79: ...1K TTB 3 8 SCREW 10 1 410 001N FTB 3 6 SCREW 18 1 410 001Q BTB 4 12 SCREW 50 1 410 001R PB 4 8 SCREW 22 1 490 011L MSF15 20 30 00K FORM SHIELD 1 1 490 011U MK 10 25 550 00 FORM SHIELD 1 1 491 001A W40...

Страница 80: ...ONTROL PCB ASSY 1 1 AYMALT34A01B 40 LP SCART MSP3410 MAIN PCB ASSY 1 1 CON02P200AOY 40 SPK 2 PIN 900MM LEAD ASSY 1 1 CON03P200AO4 40 SPK 3 PIN 1150MM LEAD ASSY 1 1 CON04P200AO4 40 SPK 4 PIN 1150MM LEA...

Страница 81: ...SMC103 INDUCTOR CHOKE L1003 1 2 0XTKI184320D 18 432MHZ CRYSTAL RADIAL X601 1 2 1ICST2822MBD H P SOUND AMP IC SOUND AMP IC691 1 2 1ICSY12JC0BS AT29C020 120NS IC FLASH EPROM IC03 1 2 420 001D TSC037013...

Страница 82: ...C363 C364 C644 C931 C1152 C2 51 C252 C253 C254 C 524 C531C525 C526 C146 C147 C148 C14 9 C162 C195 C196 C2 9 C427 C429 C637 C6 96 27 2 0CASH100HMTS 10UF 50V CAPACITOR CAN C1003 C1004 C1005 C1011 C508 C...

Страница 83: ...C108 C109 C 110 C111 C112 C113 C114 C115 C116 C11 7 C118 C119 C12 C12 0 C121 C122 C123 C1 27 C128 C129 C130 C 131 C132 C134 C135 C136 C137 C138 C13 9 C15 C16 C17 C171 C172 C173 C174 C17 5 C176 C177 C1...

Страница 84: ...23DKTS 0 082UF 1608 CAPACITOR CHIP C361 1 2 0DSSCB340ATS B340A 3A DIODE SCHOTTKY CHIP ZD401 1 2 0ICKE7027FTS KIA7027AF IC RESET CHIP IC161 IC502 IC06 3 2 0ICKE7042FTS KIA7042AF IC RESET CHIP IC602 1 2...

Страница 85: ...R503 R225 R908 10 2 0RHSS221DJTS 220 OHM 1608 J RESISTOR CHIP R1086 1 2 0RHSS222DJTS 2 2K OHM 1608 J RESISTOR CHIP R801 1 2 0RHSS223DJTS 22K OHM 1608 J RESISTOR CHIP R1011 R1048 R451 R452 R1082 R802...

Страница 86: ...02 ZD903 ZD904 ZD905 ZD1005 ZD1006 ZD906 ZD90 7 9 2 1DZSC5237BTS 8 2V DIODE ZENER CHIP ZD601 1 2 1ICAD98820BS AD9882A 100MHZ IC A D CONVERTER IC351 1 2 1ICIPAP5R0BD AP1501 5 0 IC DC DC CONVERTER IC401...

Страница 87: ...STOR CHIP R242 1 2 0RHSS473DJTS 47K OHM 1608 J RESISTOR CHIP R32 R1056 2 2 0RHSS750DJTS 75 OHM 1608 J RESISTOR CHIP R1019 R1020 R1021 R1053 4 2 0TRKE3875STS KTC3875S TRANSISTOR CHIP Q241 Q1051 2 1 GRL...

Страница 88: ...S104DZTS 0 1UF 1608 CAPACITOR CHIP C25 1 2 0CHSS334DZTS 0 33UF 1608 CAPACITOR CHIP C1016 1 2 0ICHNV8100BS 128K x 8bit 70ns IC SDRAM CHIP IC04 1 2 0LBSS601FJTS 600 OHM 3216 BEAD CHIP L16 1 2 0RHSS000DJ...

Страница 89: ...1608 J R3011 R3013 2 3 0RHSS222DJTS RESISTOR CHIP 2 2K OHM 1608 J R3002 R3003 R3005 3 3 0RHSS120DJTS RESISTOR CHIP 12 OHM 1608 J R3015 1 3 0RHSS102DJTS RESISTOR CHIP 1K OHM 1608 J R3001 R3004 2 3 0CH...

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

Страница 91: ...ERVICE MANUAL PAGE 91 CONNECTION DIAGRAM 1 Connection diagram PANEL INVERTER MAIN Board SMPS Board 30PIN 14PIN 14PIN Power Cord CONTROL IR 5 PIN 10 PIN L MAIN SPEAKER R SUB SPEAKER 3PIN 2PIN 4PIN 3 PI...

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

Страница 93: ...ERVICE MANUAL PAGE 93 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 LCLK...

Страница 94: ...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...

Страница 95: ...ber 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...

Страница 96: ...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 signa...

Страница 97: ...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 sign...

Страница 98: ...ematic Diagram 31 IC601 pin 50 51 sound input phone 2P 32 IC601 pin 47 48 sound input PC 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...

Страница 99: ...er from Schematic Diagram 37 IC351 pin 20 B signal ouput XGA 1024 768 60HZ 38 IC301 5V VCC 39 IC351 RX0 signal XGA 1024 768 60HZ 40 IC351 RX2 signal XGA 1024 768 60HZ 41 IC351 pin 85 data clock XGA 10...

Страница 100: ...from Schematic Diagram 43 IC351 pin 87 V sync output XGA 1024 768 60HZ 44 IC351 pin 88 H sync output XGA 1024 768 60HZ 45 IC351 pin 89 SOG sync output XGA 1024 768 60HZ 46 IC01 pin 11 SDA clock output...

Страница 101: ...M 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...

Страница 102: ...d number from Schematic Diagram 55 P1014 pin 2 MXCS clock 56 P1014 pin 3 MXDA clock 57 P1014 pin 4 MXCL clock 58 P901 pin 1 R signal input XGA 1024 768 60HZ 59 P901 pin 2 G signal input XGA 1024 768 6...

Страница 103: ...CE MANUAL PAGE 103 WAVE FORM NOTE You can find number from Schematic Diagram 61 P901 pin 13 H sync input XGA 1024 768 60HZ 62 P901 pin 14 V sync input XGA 1024 768 60HZ 63 P1004 pin 10 CVBS TV signal...

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