Akai LCT2016 Service Manual
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Akai LCT2016 Service Manual

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SERVICE MANUAL

Model:
Safety Instructions ........................................................................1-2
Production specification...............................................................3-5
Block Diagram................................................................................ 6-6
Circuit Diagram..............................................................................7-24
Main IC Specification...................................................................25-25
Mechanical Dimensions...............................................................26-26
Disassembly.............................................................................27-28
Spare parts list............................................................................29-29
V-chip password and software upgrade .....................................30-32
This manual is the latest at the time of printing, and does not
include the modification which may be made after the printing,
by the constant improvement of product.
LCT2016

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Summary of Contents for Akai LCT2016

  • Page 1: Service Manual

    SERVICE MANUAL Model: LCT2016 Safety Instructions ................1-2 Production specification...............3-5 Block Diagram................6-6 Circuit Diagram................7-24 Main IC Specification..............25-25 Mechanical Dimensions...............26-26 Disassembly................27-28 Spare parts list................29-29 V-chip password and software upgrade ........30-32 This manual is the latest at the time of printing, and does not include the modification which may be made after the printing, by the constant improvement of product.

  • Page 2: Safety Instructions

    I. Safety Instructions The l ig h tn i ng fla sh w i th arro wh e ad symb ol , within an equilatera l triangle, is intended to alert the user to the presence of uninsulated “ dangerous CAUTION voltage”...
  • Page 3 PRODUCT SAFETY NOTICE 4. Completely discharge the high pote ntial voltage of the picture tube before handli ng. The pi cture tube is a Many e lectrical an d mechanica l parts in this TV vacuum and if bro ken, the gl ass will explode. receiver have special safety-related characteristics.

  • Page 4: Technical Specification

    Technical Specification Product Model: LCT2016 Screen Size: 20” diagonal Screen Area: 408mm(H) x 306mm(V) Aspect Ratio: External Size: 680mm(W) x 480mm(H) x 70mm(D) (w/o Stand) Net Weight: 10kg Resolution: 640 (H) x 480 (V) pixels (Each pixel has R/G/B 3 color...
  • Page 5 Support the Signal Mode A. D-Sub Mode (VGA) Horizontal Vertical Dot Clock Resolution Frequency Frequency Frequency (KHz) (Hz) (MHz) 640 x 480 31.50 60.00 25.18 640 x 480 35.00 67.00 30.24 640 x 480 37.50 75.00 31.50 640 x 480 37.86 72.81 31.50...
  • Page 6 4.3 Remote Control Power ( ): Press to turn on and off. Mute ( ): Press to mute the sound. Press again or press ◄, ► to restore the sound. -/--, 0~9 Number Buttons: Press 0~9 to select a channel; If the channel more than 9, press -/-- button, then press other 0~9 number buttons;...

  • Page 7: Block Diagram

    Functional Block Diagram Copy CVBS/Y/G Protection Data Detector Slicer Analog Front End VI_1_A Composite and S-Video Processor CVBS/ VI_1_B ADC1 Pb/B/C VI_1_C Luma CVBS/Y Separation Processing YCbCr 5-line VI_2_A Y[9:0] Chroma Adaptive CVBS/ Processing ADC2 VI_2_B Comb C[9:0] Output VI_2_C Formatter VI_3_A Component...
  • Page 8 DC12V-IN DC12V-IN FB/NC FB/NC VCC12 VCC12 FB0410 FB0410 1TVS 1TVS 1805 1805 100nF 100nF 470uF 470uF 100nF 100nF FB/NC FB/NC FB0410 FB0410 TRANSFORMER TRANSFORMER 1C10 1C10 220uF 220uF 100nF 100nF SFR9024 SFR9024 33uH 33uH TO252 TO252 SMT-L-1 SMT-L-1 5VCC 1R19 1R19 1C11 1C11...
  • Page 9 5VCC 2EC1 2EC1 2EC3 2EC3 4148 4148 10u/16V 10u/16V 47U/16V 47U/16V 2RP1 2RP1 2RP2 2RP2 W78E516B W78E516B 2CON1 2CON1 EA/VP P0.0 P0.1 XTAL1 P0.2 P0.3 11.0592MHZ 11.0592MHZ P0.4 XTAL2 P0.5 P0.6 RESET P0.7 2R10 2R10 100K 100K P4.2 MST518_RST HWRESET P2.0 PANEL_ON/OFF HEADER 9...
  • Page 10 D3.3VCC AIC1117/3.3V AIC1117/3.3V AIC1117/2.5V AIC1117/2.5V D3.3VCC 2.5VCC 5VCC FB/0805 FB/0805 3C10 3C10 3C11 3C11 3CA1 3CA1 3EC2 3EC2 5VCC 2.5VCC 3EC6 3EC6 3EC8 3EC8 22U/16V 22U/16V FB/0805 FB/0805 47U/16V 47U/16V 3C23 3C23 47U/16V 47U/16V 3C25 3C25 3EC9 3EC9 3EC10 3EC10 D3.3VCC 3EC1 3EC1...
  • Page 11 EXT_VIDEO_L EXT_VIDEO_L EXT_VIDEO_R EXT_VIDEO_R 4J1B 4J1B 4J1C 4J1C EXT_A_L EXT_A_R 4L14 4L14 2.7uH 2.7uH 4C16 4C16 100nF 100nF TV-CVBS TV-4052 TV-CVBSI TV-CVBS 0805 0805 4R18 4R18 TXT-VCC3 TXT-VCC3 4C32 4C32 4C48 4C48 VCC5-TV 330pF 330pF 330pF 330pF CM1117SCN252 3.3V CM1117SCN252 3.3V SOT223 SOT223 VCC33D...
  • Page 12 TXT-HS This block is used for USA only TXT-B TXT-G 5C16 5C16 TXT-R 100nF 100nF TXT-FB VIN/INTRO 5R24 5R24 5C17 5C17 100nF 100nF TXT-CVBS TXT-CVBS VIDEO 5C19 5C19 100nF 100nF 5C18 5C18 CSYNC VSS(A) 560pF 560pF 5R25 5R25 6.8K 6.8K RREF 5C21 5C21...
  • Page 13 EXT_A_L EXT_A_L EXT_A_R EXT_A_R VCC12 LM7809C LM7809C VCC9 TRA-TO92-L TRA-TO92-L VCC9 AN7522N AN7522N NOTE: NOTE: FB0410 FB0410 AN7522N AN7522N Ground radiation fin The volume DC is 6C32 6C32 6C34 6C34 6C40 6C40 6C38 6C38 is permitted =0V, out current is 12uA 6FB4 6FB4 6CON2...
  • Page 14 7TU1 7TU1 VCC5-TV 0805 0805 VCC5-TV 7C10 7C10 7C35 7C35 0805 0805 100nF 100nF 100uF 100uF 100nF 100nF 100uF 100uF 100uF 100uF 100nF 100nF 100uF 100uF 100nF 100nF 47pF 47pF 47pF 47pF VCC5-TV 0805 0805 BLOCK 2:For America 1K/NC 1K/NC 0/NC 0/NC 3415_RST...
  • Page 15 PANEL_VCC RAO[7..0] 8CON2 8CON2 RAO[7..0] RAO[7..0] RAO0 RA0P LVACKP PANEL_VCC RAO1 RA0N LVACKM RAO0 RAO0 RAO2 RA1P LVA2P RAO1 RAO1 RAO3 RA1N LVA2M RAO2 RAO2 RAO4 RA2P LVA1P RAO3 RAO3 RAO5 RA2N LVA1M RAO4 RAO4 RAO6 RA3P LVA0P RAO5 RAO5 GAO[7..0] RAO7 RA3N...
  • Page 16 9J1C 9J1C YUV-Cr 9L10 9L10 RIN0 FB/0805 FB/0805 GIN0 FB/0805 FB/0805 9J1B 9J1B BIN0 YUV-Cb FB/0805 FB/0805 9C24 9C24 9C27 9C27 9C28 9C28 BAV99 BAV99 BAV99 BAV99 BAV99 BAV99 9C32 9C32 SOG0 9J1A 9J1A YUV-Y 5VCC 9R13 9R13 9C29 9C29 GNDR0 9R14 9R14...
  • Page 17 10R1 10R1 10C4 10C4 10R2 10R2 100nF 100nF 10R3 10R3 4.7K 4.7K Sync 10Q1 10Q1 10R56 10R56 Separator 10Q2 10Q2 10Q3 10Q3 10C5 10C5 10C66 10C66 10R4 10R4 10Q4 10Q4 100nF 100nF 10R5 10R5 10C7 10C7 10R6 10R6 10R7 10R7 10R8 10R8 220K...
  • Page 19 Del Parts HPVDD VGA_IN_L VGA_IN_L TP17 C117 VGA_IN_R DVI_R R212 CB161 VGA_IN_R 0.1uF R213 SCL14 TP18 DVI_L R214 10uF/25v R215 SDA14 S1_AV1_L S1_AV1_L VGA_IN_R R216 S1_AV1_R S1_AV1_R VGA_IN_L R217 S1_AV1_R CE108 10uF/25v R218 HPVDD S1_AV1_L CE109 10uF/25v R221 Del Parts TP16 YPBPR1_R CE110...
  • Page 20 LVDS OUT CLK1- CLK1+ CLK2- CLK2+ +12V LVDS LVDSVDD LVDSVDD BEAD/SMD/0805 4A/?v FUSE/DIP/P10.0 CE86 FI-SE30P-HF JP2X2/DIP/P2.54 330uF/25v LVDS/30P/P1.25/S C330UF25V/D8H14 CE87 CE88 220uF/16v 220uF/16v CB185 CB186 0.1uF 0.1uF R277 GPIO CRT OUT RED_OUT R278 0.082uH L/IND/SMD/0603 CLK1+ 75 1% C149 C150 CLK1+ CLK1- CLK1-...
  • Page 21 PANEL INVERTER POWER UP1_2 UP1_2 UP3_1 UP3_1 OBO0 OBO0 Inverter_PWR Inverter_PWR OBO1 OBO1 FOR CHI-MEI INVERTER OBO2 OBO2 CONNECTOR OBO3 470uF/50v 470uF/50v 470uF/50v 0.1uF 0.1uF OBO3 URST# URST# OBO4 PWR_GND OBO4 OBO5 OBO5 OBO6 OBO6 OBO7 OBO7 Inverter_PWR R336 UP3_0 UP3_0 R285 PWM0...
  • Page 22 TUNER1 IN Date ADDRESS TUNER1 TUNER FQ1236 / : NTSC TV AV , TUNER I/O FQ1236-MK3 TU_VCC TU_12V SIF1_OUT TU_CVBS AF1_OUT TV_GND CON12 TV_GND GNDS GNDS GNDS TU_SCL GNDS GND HOLE GND HOLE TU_SDA SIF1_IN TU_CVBS GNDS AF1_IN GNDS GNDS TUNER1 SIF1 BPF SIF_12V NTSC 4.5MHz PAL 6MHz...
  • Page 23 22pF +24V +24V 100K 100NF 100UF/25V 100K 4.7uF 100UF/25V 22UF/16V 4.7nF 100NF FILM PGND 10uH AUSPL AGND 1000UF/25V RC4558 10UF 10K 5% AGND ATA-120 100K MUTEC 470NF MBRS130LTR 22pF 2.2UF 100NF 6.2V 390PF 22pF +24V +24V 100K 100K 4.7uF 100UF/25V 22UF/16V 4.7nF 100NF...
  • Page 24 MUTEC +24V 2N3906 2N3904 MUTE 1N4148 2N3904 100UF/25V AGND AGND AGND AGND LOUT 1N4148 4.7V 2N3904 AGND 2N3906 MUTEB ROUT 2N3904 AGND AGND 220UF/25V 1N4148 +24V AGND 100U/35V 100N MUTE 22U/16V 10U/16V AUSPL 10UF RC4558 AGND 100K AGND AGND LOUT ROUT rca2 +24V...
  • Page 25 1KV 470P STTH3L06 NTC1 V_BUKE 100R 2W 10UH V_BUKE 400UH +24V PQ32-20 2.5R STTH8R06 +24V4A 100R 2W 1.8M 750K 10mH 10mH 1.6M C15 C16 250VAC 5A +12V 1.6M 25V 1U 750K 0.1U 1KV 470P 1.8M 1.6M 680NF 470R/1W 0.33 1.6M 0.33U $0.28 +24V1A...
  • Page 26 Main IC Specification GA[5] BYPASS GA[4] BB[6] Pin 1 GA[3] BB[7] GA[2] GB[0] GA[1] GB[1] GA[0] GB[2] VDDC GB[3] VDDP VDDP GB[4] BA[7] GB[5] BA[6] GB[6] BA[5] GB[7] BA[4] RB[0] BA[3] RB[1] BA[2] RB[2] BA[1] RB[3] BA[0] VDDC VDDC VDDP VDDP RB[4] RB[5]...

  • Page 27: Mechanical Dimensions

    MECHANICAL DIMENSIONS θ1 θ2 Gage Plane 0.25mm Seating Plane θ3 Millimeter Inch Millimeter Inch Symbol Symbol Min. Nom. Max. Min. Nom. Max. Min. Nom. Max. Min. Nom. Max. 3.40 0.134 θ 0° 7° 0° 7° 0.25 0.010 0° 0° θ1 2.50 2.72 2.90 0.098 0.107 0.114...

  • Page 28: Disassembly

    Disassembly In case of trouble,etc.Necessitating disassemble,please disassemble in the order shown in the illustrations. 1.Removal of the Back Cover. 2.Removal of the MAIN PCB. a.Remove the screws. b.slide out the LCD chassis slightly;pull up the connector of AC cord from PCB;pull up the LCD PCB from LCD.
  • Page 29 ITEM DESCRIPTION PART NO TYPE REMARK FRONT_CAB_ASS_LCD2016 ASSEMBLY KEY_PCB_ASS_LCD2016 PART F_KEY_L2016 PART SELF TAPPING SCREW PART 20PANEL_ASS ASSEMBLY BKT_2016 PART MACH_SCREW PART SOCKET_PVC_PLATE PART SEAT_ASS ASSEMBLY MACH SCREW PART...

  • Page 30: Spare Parts List

    Spare Part List for LCT2016 Item Part Number Part Description Usage Unit / unit TI-L20160001-01 20.1” LCD Panel piece TI-L20160002-01 Front Plastic Cabinet with Remote piece Lens TI-L20160003-01 Plastic Back Cover with wall piece mount bracket TI-L20160004-01 Plastic Base Cover...

  • Page 31: If You Forget Your V-Chip Password

    If you forget your V-Chip Password - Omnipotence V-Chip Password: 3308. - Press MENU button. - Press MENU buttons to highlight "CCD\V-CHIP" Menu. "鳐 軐 鷐 槐  盐 賐 釐 鋐 駐 - Press Up, Down buttons to highlight ".

  • Page 32: Software Upgrade Process

    VGA configurations 3-wire configuration (Not standard) VGA male VGA female Software upgrade Process - Power Switch OFF. - Connect the serial port of the control device to the VGA jack on the LCD-TV back panel. -VGA connection cables are not supplied with the LCD-TV. - Power Switch ON.
  • Page 33 - Select the file which will be update. Press "ConNect" button - Waiting for the upgrader programing, when it is finished, the bar will display “program OK”. - After the upgrader is finished, shut down the power switch, take out the VGA connection...

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