Akai LTA-20A301 Service Manual Download Page 1

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20”LCD TV SERVICE MANUAL

VERSION:

CHECKED BY:

APPROVED BY:

ShenZhen KXD Multi-Media CO.,LTD

Summary of Contents for LTA-20A301

Page 1: ...20 LCD TV SERVICE MANUAL VERSION DESIGNED BY CHECKED BY APPROVED BY ShenZhen KXD Multi Media CO LTD...

Page 2: ...SPECIFICATION 3 5 REMOTE CONTROLLER 6 EXPLODED VIEW DIAGRAM 7 10 BOLCK DIAGRAM 11 MAIN BOARD CIRCUIT 12 21 TUNER CIRCUIT 22 INVERTER CIRCUIT 23 ADAPTER CIRCUIT 24 COMPONENT DIAGRAM 25 32 BILL OF MATER...

Page 3: ...OR WEAK AND DISTORETED SIGNAL FROM VIDEO TAPE RECORDER 10 PAGES TELETEXT OPTION AUTOMATICALLY TURN OFF THE SET WHEN SIGNAL ABSENT LONGER THAN 10 MINUTES 256 CHANNELS BLUE SCREEN DISPLAY GENERAL SPECIF...

Page 4: ...ITALIAN OSD LANGUAGE RUSSIAN GERMAN FRENCH AUDIO OUTPUT POWER 3W 1KHz 0 5Vrms 10 THD GREEN POWER ON RED POWER OFF LED INDICATORS ORANGE SLEEP PC HAND SET POWER SUPLY BATTERY 1 5V AAA x2 PART2 PANEL Br...

Page 5: ...TION V Freq Hz H Freq KHz Band Width MHz Polarity H V 1 720 400 70 31 47 28 322 2 640 350 70 31 469 25 175 3 640 480 60 31 47 25 175 4 640 480 72 37 86 31 5 5 640 480 75 37 50 31 5 6 800 600 56 35 156...

Page 6: ...ectify distoration signal from VTR videotape recorder 19 AUTO auto adust the position and size of the picture in PC mode DIRECT PROGRAM SELECTION 0 9 BUTTONS 1 To select one digit channel Press 0 9 di...

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Page 11: ...T YCbCr TUNER IIC2 IIC1 CVBS U802 SAA5264PS M3 0104 TELETEXT IIC2 3 3V 3 3V IC401 12V 9V U401 PT2314 AUDIO PROCESSOR U402 AMP 12V AUDIO FROM AV S VIDEO PC AUDIO SCART YCBCr AUDIO 3 3v 3 3v U301 MV2 LC...

Page 12: ..._VSYNC PA_HSYNC DDC_SCL DDC_SDA CABLE RIN GIN BIN VGA input VGA input Sch Y 0 7 UV 0 7 CLK_VID DE_VID HS_VID VS_VID PA_VSYNC PA_HSYNC RIN GIN BIN RIN GIN BIN IRQ SCL SDA MCU_RESET BRI_ADJ LVDS_PD INV_...

Page 13: ...4 10uH C734 1n R709 56 R70118 C717 47n C VGND R730 4K7 L7012 2u 3V3_D C729 104 C13 104 C14 104 R732 100 R731 100 R726 22 CLK_VID DE_VID HS_VID VS_VID R723 33 R724 33 R725 33 Y 0 7 UV 0 7 Y0 Y1 Y2 Y3 Y...

Page 14: ...SCL SDA DDC_SCL DDC_SDA CABLE ORANGE GREEN R110 4K7 R112 4K7 5V R104 4K7 C111 0 1uF Q103 9014 R119 2K7 Q102 9014 R120 100 R121 100 5V R122 1K R123 1K ORANGE GREEN LEDO LEDG 1 2 3 4 5 6 7 8 RP101 4K7...

Page 15: ...R213 47 C221 47pF C222 47pF C223 47pF C220 47pF 5V1 DDC_SCL DDC_SDA R G B 1A 1 1Y 2 2A 3 2Y 4 3A 5 3Y 6 GND 7 4A 8 4Y 9 5A 10 5Y 11 6A 12 6Y 13 VCC 14 U201 74LV14 AGND AGND AGND 1 1 2 2 FB201 120 100M...

Page 16: ...PH1 SHCLK 78 INV1 DISP_HSYNC 79 DCVSS 80 BLU_OUTA_0 81 BLU_OUTA_1 82 BLU_OUTA_2 83 BLU_OUTA_3 84 BLU_OUTA_4 86 BLU_OUTA_5 87 BLU_OUTA_6 88 BLU_OUTA_7 89 DOBVDD 85 DOBVSS 90 GRN_OUTA_0 91 GRN_OUTA_1 92...

Page 17: ...31 1uF 16V LEFT RIGHT R413 10K R417 10K C423 100n 1 1 2 2 FB401 120 100M 1 1 2 2 FB402 120 100M 1 1 2 2 FB403 120 100M 1 1 2 2 FB404 120 100M 9V YUV_L YUV_R 1 2 3 4 5 6 CN401 CON6 SGND SCART_L SCART_R...

Page 18: ...F 16V 5V1 C616 100uF 16V C625 0 1uF R604 2K7 LCD_ON Q602 9014 R605 4K7 1 2 3 4 5 6 7 8 Q603 9435 R606 100K C615 100uF 16V C643 1uF LCDVDD C631 47uF 16V C621 0 1uF 5V1 C632 47uF 16V C622 0 1uF C623 0 1...

Page 19: ...UT 42 XTALIN 41 OSCGND 40 P1 5 52 P1 4 51 P1 3 48 P1 2 47 P1 1 46 RESET 43 P1 0 45 VSYNC 37 HSYNC 36 FRAME 27 P0 3 17 P0 4 18 P0 5 19 P0 6 20 P0 7 21 CVBS0 23 SDA 50 SCL 49 IREF 26 U802 SAA5264 A0 1 A...

Page 20: ...LUE 3 BOX 17 CSYNC 8 LPF 9 U901 Z86129 R903 10K R912 6 8K R904 8 2K R907 13K R906 13K R905 13K R908 2 2K R909 2 2K R910 2 2K R911 2 2K C911 0 1uF C901 NC C902 NC C903 NC C904 68pF C912 0 1uF C914 68nF...

Page 21: ...ND 5 TXIN8 6 TXIN9 7 TXIN10 8 VCC 9 TXIN11 10 TXIN12 11 TXIN13 12 GND 13 TXIN14 14 TXIN15 15 TXIN16 16 R_FB 17 TXIN17 18 TXIN18 19 TXIN19 20 GND 21 TXIN20 22 TXIN21 23 TXIN22 24 TXIN23 25 VCC 26 TXIN2...

Page 22: ...GND GND IF SDA SCL SCL SDA TV VIN TV AUDIO TV VIN 1 6 2 7 3 8 4 9 5 CN1 DB9 5V SCL GND GND SDA IF GND TV VIN TV AUDIO 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 M5 TUNER 5V C1...

Page 23: ...uF C24 1 0uF R11 10 1 8W R36 10K R20 47K 7 1 6 5 2 3 4 8 Q1 FDS6679Z D1 BAS40LT1 R52 4 3K C4 4 7uF 25V R46 15K Z1 BZX84C5V1 R22 39K 4 1 3 2 T8 T09094 R1 4 7K R35 TBD R47 47K F1 4A 32V 7 1 6 5 2 3 4 8...

Page 24: ...C6 470pF C7 47pF C22 104 C19 102 1KV L3 1 5UH OP1B PC817C R3 22R R16 47K 2W R4 47R R5 470R R12 1K R6 4 7K R2 1M R1 1M R7 0 47ohm 1W R14 20K R9 100R C14 470uF 25V 12V 5A GND C17 222 Y LF1 LF2 T1 100V 2...

Page 25: ...101R16RM00 CAP EL 1 000 C433 16V 1uF M 414110116RM00 CAP EL 9 000 C508 C611 C614 C646 C647 C649 C608 C508 16V 100uF M 414110R16RM00 CAP EL 4 000 C101 C305 C324 C434 16V 10uF M 414022116RM00 CAP EL 3 0...

Page 26: ...M8064 4170000TL4310 Precision Adjustable Shunt Regulator T0 1 000 IC301 TL431 41700AT24C160 16K bit 2 WIRE SERIAL CMOS EEPROM 1 000 U102 24C16 DIP 8 4201T15010310 DC POWER JACK 1 000 POWER601 DC 005 4...

Page 27: ...31AJ80 CHIP RES 0603 7 000 R103 R307 R308 R440 R719 R720 R443 1 10W 10K J 412701041AJ80 CHIP RES 0603 3 000 R101 R102 R606 1 10W 100K J 412701051AJ80 CHIP RES 0603 2 000 R106 R321 1 10W 1M J 412701521...

Page 28: ...R133 1 10W 4 7K J 4127047R1AJ80 CHIP RES 0603 8 000 R131 203 204 R209 R213 1 10W 47 J 412705111AJ80 CHIP RES 0603 4 000 R303 R305 R323 1 10W 510 J 412705121AJ80 CHIP RES 0603 1 000 R105 1 10W 5 1K J...

Page 29: ...14 000 C701 C703 C705 C712 C714 715 C730 C735 50V 330P K 413539R50RJ60 CHIP CAP 0603 7 000 C107 C108 C318 C319 C109 732 733 50V 39P J 413547250RK60 CHIP CAP 0603 3 000 C313 C315 50V 472 K 413547350RK...

Page 30: ...V200 IC PQFP 1 000 U301 Mascot V2 417SAA7118H00 Multistandard video decode PQFP 1 000 U701 SAA7118H 4209000004410 SOCKET 1 000 U101 PLCC44 42833R0082010 RES 10 000 RP7 RP16 33 4 4284720082010 RES 1 00...

Page 31: ...4290512207030 CHIP BEAD 1206 2 000 FB601 FB608 FB607 HCB3216K 122T25 4290550108010 CHIP BEAD 0603 1 000 FB208 500 OHM 100MHz END...

Page 32: ...4133R10RM00 CAP EL 2 000 C1 C4 CD110 10V 33uF M 420ET15010920 D Sub 9 Pin 180 1 000 CN1 DB 9A MAIL BLACK 429EC041010R0 COIL INDUCTOR 1 000 L1 10uH 500mA 4320006000500 JUMPER 2 000 J4 J5 5mm 4320006001...

Page 33: ...P 0805 4 000 C13 C2 C6 C7 50V 0 22uF Z 413547525RZ70 CHIP CAP 1210 2 000 C23 C4 25V 4 7uF Z 413568150RK60 CHIP CAP 0603 2 000 C15 C5 50V 680P K 413510450RZ60 CHIP CAP 0603 2 000 C12 C16 50V 0 1uF Z 41...

Page 34: ...HIP RES 0603 2 000 R4 R3 1 10W 30 J 412702231AJ80 CHIP RES 0603 2 000 R7 R5 1 10W 22K J 412704721AJ80 CHIP RES 0603 4 000 R8 R6 R1 R2 1 10W 4 7K J 4127062R1AJ80 CHIP RES 0603 2 000 R9 R10 1 10W 62R J...

Page 35: ...12701041AF80 CHIP RES 0603 1 000 R33 1 10W 100K F 412702041AJ80 CHIP RES 0603 1 000 R37 1 10W 200K J 412701021AJ80 CHIP RES 0603 6 000 R40 R41 R42 R43 R44 R45 1 10W 1K J 412704321AJ80 CHIP RES 0603 2...

Page 36: ...3 1 000 Q11 BC847A 417FDS6679Z10 IC FDS6679Z 2 000 Q2 Q1 416S13457DV20 IC SI3457DV T1 2 000 Q3 Q4 416S13456DV20 IC SI3456DV T1 2 000 Q5 Q7 41700FDS66440 IC 2 000 Q6 Q8 FDS6644 417016911PW10 IC TSSOP 1...

Page 37: ...000 R18 28 1 10W 51K J 412704741AJ80 CHIP RES 0603 1 000 R16 1 10W 470K J 413522150RJ60 CHIP CAP 0603 1 000 C22 50V 220pF J 4127047R1AJ60 CHIP RES 0805 1 000 R15 1 10W 47 J 41100T0909400 TRANSFORMER S...

Page 38: ...TCH 7 000 P P V V MENU SOURCE POWER 6 6 5mm 4041920011010 CONNECTER 11PIN 2 0mm 180 DIP 1 000 C0N1 TJC4 11Y 405T200105110 MTV2001KEY PCB 1 000 PCB 2004 6 22 410A010300020 LED DIP 1 000 LED COMMON CATH...

Page 39: ...2 405T200105420 20TVSCART PCB 1 000 SCART BOARD 04 06 23 2 420BT15012110 SCART JACK 1 000 CN3 RC 2105 2 4320006000500 JUMPER 4 000 J1 J2 J3 J4 5mm 414110R16RM00 CAP EL 2 000 C432 C438 16V 10uF M 41600...

Page 40: ...290512106010 CHIP BEAD 0805 4 000 FB407 FB702 FB408 FB708 120 OHM 100MHz 4127056R1AJ80 CHIP RES 0603 1 000 R745 1 10W 56 J 412702021AJ80 CHIP RES 0603 1 000 R140 1 10W 2K J 412700R01AJ80 CHIP RES 0603...

Page 41: ...A201SN01PANEL ASSEMBLY DATE 2004 09 09 PART NO DESCRIPTION QTY LOCATION 420FT20015010 FFC CONNECTER 1 000 CN502 FFC 0 5 SMT 50PWX 4290512207030 CHIP BEAD 1206 1 000 FB606 HCB3216K 122T25 END...

Page 42: ...R401 R404 R407 R408 1 10W 47 J 3 412701031AJ80 CHIP RES 0603 8 000 R410 R413 R415 418 1 10W 10K J 3 412700R01AJ80 CHIP RES 0603 1 000 R430 R441 R442 1 10W 0 J 3 412701011AJ80 CHIP RES 0603 2 000 R422...

Page 43: ...1 16V 1uF M 2 413127225RK00 CAP FILM 2 000 C420 C421 25V 2n7 K 2 413110425RK00 CAP FILM 6 000 C422 C427 25V 104 K 2 41412R216RM00 CAP EL RB 2 5 2 000 C429 C428 16V 2 2uF M 2 414110R16RM00 CAP EL 2 000...

Page 44: ...S 0603 3 000 R817 819 1 10W 150 J 412701011AJ80 CHIP RES 0603 3 000 R814 R815 R816 1 10W 100 J 4127033R1AJ80 CHIP RES 0603 2 000 R821 R822 1 10W 33 J 413510425RZ60 CHIP CAP 0603 7 000 C803 807 810 811...

Page 45: ...417S0AT24C160 IC AT24C16 S08 1 000 U801 4240000061240 CYSTAL 49S 1 000 X801 12MHz 20PF 20PPM 414110116RM00 CAP EL RB 2 5 DL 6 8 1 000 C817 16V 100uF M END...

Page 46: ...U 1 000 A201SN01 437T150100020 WIRE 10P 11P 2 0 2468 26 1 000 SCART CN2 MAIN CN701 50mm 437T150100050 WIRE 6P 2 0 2468AWG 26 1 000 SCART CN1 MAIN CN401 50mm 437T200100010 WIRE 11P 2 0 2547AWG28 1 000...

Page 47: ...R4702J00 WIREWOUND RESISTOR 1 000 R7 RX 2W 0 47 J 4129005R01J20 HEAT VARIABLE RESISTOR 1 000 NTC MWF22 5D 9 5 3A 412A047112J00 PIEZORESISTANCE 1 000 VP Z471 4130102102K00 HIGH VOLTAGE CERAMIC CAPACITO...

Page 48: ...3 C18 CD288H 25V 1000u M 105 414047125RM0A CAP EL 1 000 C14 CD288H 25V 470u M 414047R35RM0A CAP EL 1 000 C9 CD288H 35V 47u M 415301N400740 DIODE 2 000 D1 D2 1N4007 41530UF400740 DIODE 1 000 D5 UF4007...

Page 49: ...0AC1 4222500250130 FUSE T2 5A 250V VDE UL 1 000 F1 425T2001PW010 HEAT SINK 1 000 728 200001 00 425T2001PW020 HEAT SINK 1 000 728 200002 00 429030577AT13 COMMON FILTER 1 000 L1 LCL T13 0577A 4292020598...

Page 50: ...110mm 606T2001PW000 MYLAR SLICE 20 25 0 25mm 1 000 L2 AC SOCKET 615 200001 00 6090050040010 HIGH VOLTAGE INSULATION TAPE 3 000 WIDTH 40mm 405T2001PW010 KXD1207POWER PCB 1 000 PCB MTV2001 412701021AJ60...

Page 51: ...4711AJ60 CHIP RES 0805 1 000 R5 1 10W 470R J 412704721AJ60 CHIP RES 0805 2 000 R6 R18 1 10W 4 7K J 412704731AJ60 CHIP RES 0805 1 000 R2 1 10W 47K J 4127047R1AJ60 CHIP RES 0805 1 000 R4 1 10W 47 J 4127...

Page 52: ...413547150RJ40 CHIP CAP 0805 1 000 C6 50V 470P J 415201N414860 DIODE 2 000 D3 D4 1N4148 41700NCP1207D IC S0 8 1 000 IC1 NCP1207D END...

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