Akai LCT2765TD Service Manual
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Akai LCT2765TD Service Manual

Akai LCT2765TD Service Manual

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SERVICE MANUAL

Safety Instructions........................................................................1~2
Production specification............................................................3~11
DVD Player's Spec.For LCD-TV Comb.........................................12
LCD COMBO Connection.............................................................13
Panel Inverter Power..............................................................14~29
Basic Operations & Circuit Description........................................30
PCB Function...............................................................................31
PCB Failure Analysis...................................................................32
Basic Operation of LCD-TV....................................................33~34
IC Descriptions.........................................................................35~45
LCD Panel specification...........................................................46~98
Disassembly...................................................................................99
Exploded View Diagram...............................................................100
Spare parts list.....................................................................101~102
V-Chip Password.........................................................................103
Software Upgrade................................................................103~104
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.
Model:
LCT2765TD

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Summary of Contents for Akai LCT2765TD

  • Page 1: Table Of Contents

    SERVICE MANUAL Model: LCT2765TD Safety Instructions................1~2 Production specification............3~11 DVD Player's Spec.For LCD-TV Comb.........12 LCD COMBO Connection.............13 Panel Inverter Power..............14~29 Basic Operations & Circuit Description........30 PCB Function................31 PCB Failure Analysis..............32 Basic Operation of LCD-TV............33~34 IC Descriptions.................35~45 LCD Panel specification............46~98 Disassembly...................99 Exploded View Diagram...............100 Spare parts list..............101~102...

  • 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 CAUTION the user to the presence of uninsulated “ dangerous 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: Production Specification

    KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LCT2765TD Product Specification CHIMEI V270B1-L01 1.1 VIDEO SECTION MK8205 Display size 27”/16:9 Display Resolution 1366 X 768 Pixel Pitch 0.1460mm×0.4365mm Peak Brightness 550(nits) Contract Ratio 1000:1, Typical (1/100 White Window, Dark Room) View Angle Hor.
  • Page 5 KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LCT2765TD Stereo Decode MTS with SAP Power Rating AC 120 V, 60Hz Power Consumption 200W 1.6 Support the Signal Mode This machine can support the different from VGA signal mode in 7 kinds...

  • Page 6: Remote Control

    1.8 Remote Control Power ( ): Press to turn on and off. Mute ( ): Press to mute the sound. Press again or press to restore the sound. CCD: Press to select the Closed Caption mode. V-CHIP: Press to select the child protect mode.
  • Page 7 Menu: Press to enter into the on-screen setup menu, press again to exit. S.Mode: Press repeatedly to cycle through the sound mode: Normal, News, Cinema, Flat and User. , , Enter: Press , to move the on-screen cursor. To select an item, press ENTER to confirm.
  • Page 8 DVD Info: Press to display DVD information. Setup: Press to display a menu. Press it again to exit menu. Repeat: Press repeatedly to cycle through the options: CHAPTER, TITLE, ALL and nothing. Audio: Press to select desired audio track. Prog: Press to display the program menu.
  • Page 9 KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LCT2765TD Technical Data 1. Power supply AC 120V , 60Hz Remote control Battery 3V (UM-3/R6P/AA×2) 2. TV system RF input NTSC M Video input PAL/NTSC 3.58/NTSC 4.43 3. Receiving channels VHF-L : 2~6CH...
  • Page 10 KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LCT2765TD Attachment 1:Electrical &Optical Specification Items Instruction Typical Limit Unit ≤51 Video sensitivity For 30dB S/N dBuV ≤35 FM sound sensitivity For 30dB S/N dBuV ≤40 Color sensitivity For RF transmission dBuV ≤50...
  • Page 11 KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LCT2765TD Max Audio Power 7×2 ≥5.0×2 ≥4.0×2 Audio output power 1KHz 10% THD 6×2 10% THD ≤3 Po=0.5W ≥30 Signal to buzz ratio coeighting ≤10 Minimum volume hum coeighting mVrms Maximum woofer output power ±3dB ref.
  • Page 12 KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LCT2765TD Test Condition All tests shall be performed under the following conditions unless otherwise specified Picture Modulation 87.5% Sound Modulation 27KHz Dev. For DK/I/BG 15KHz Dev. For M/N Picture to Sound Ratio...

  • Page 13: Dvd Player's Spec.for Lcd-Tv Comb

    DVD player's spec. For LCD-TV Combo Division Section Remarks name AKAI Marketing Area( setup default language) General Power supply +5v,+3.3v Power Consumption Manufactruer of Loader mechanism Foryou DL06-LS Opitical Pick UP Sanyo HD-62/65 DVD Module Chipset used MTK 1389FE Playback...

  • Page 14: Lcd Combo Connection

    LCD COMBO Connection Key Board On/Off Turner+Amp LVDS×1 Panel Backlight Main board +24V +24V +5V STB Power board +5V IR2 +12V Key Board Y/Pb/Pr (480p)

  • Page 15: Panel Inverter Power

    Dimming Dimming BL_ON/OFF PANEL INVERTER POWER BL_ON/OFF Inverter_PWR Inverter_PWR HOLE/GND 470uF/50v 470uF/50v 0.1uF 0.1uF PWR_GND 120R Inverter_PWR HOLE/GND INVERTER_PWR PWR_GND Dimming BL_ON/OFF 8x1 W/HOUSING 120R 12x1 W/HOUSING R.A SIP6\2.54 SIP12\2 0.1uF HOLE/GND HOLE/GND PWR_GND 120R 10x1 W/HOUSING R.A. SIP10\2 120R 120R 1206 HOLE/GND...
  • Page 16 Dimming Dimming BL_ON/OFF BL_ON/OFF VGA_R Dimming BL_ON/OFF VGA_L RSTXD RSRXD CON\SVHS VGA AUDIO PHONEJACK/DIP VGA_R VGA_L SC_IN SY _IN SC_GND1 SY_GND1 RED_GND GREEN BLUE GRN_GND BLU_GND VGA_PWR VGA_SDA VSYNC# HS YNC# VGA_SCL DSUB15/DIP/F DB15 RSRXD PC CONNECTOR RED_GND DIP14X2/P2.54/R2 Y1_INB VGA_SDA GREEN Y1_GNDB...
  • Page 17 VSYNC VSYNC HSYNC HSYNC CLK1- CLK1+ CLK1+ CLK1+ CLK1- +12V CLK1- CLK2+ CLK2+ CLK2- CLK2- Optinal for 12V pannel.Added by bin_wang 16/7/05 CRT OUT ORO1 ORO1 75R/NC 0805 0805 CLK2- CLK2+ AP[0..7] AP[0..7] 75 1% AN[0..7] AN[0..7] Add LVDS VCC control by Zheng_guo 15/9/05. +12V +12V LVDSVDD...
  • Page 18 VGASOG VGASOG RED+ RED+ RED- CVBS0 CVBS0+ RED- 47nF GREEN+ 47nF GREEN+ GREEN- 15pF GREEN- 330pF Y_GND BLUE+ CVBS0_GND CVBS0- BLUE+ BLUE- 47nF BLUE- 47nF CVBS1 CVBS1+ 47nF 47nF 15pF 330pF CB_GND CVBS1_GND CVBS1- 47nF Change. 47nF 47nF 15pF CVBS0+ CR_GND CVBS0+ CVBS0-...
  • Page 19 VGA_IN_L Dimming VGA_IN_L Dimming VGA_IN_R BL_ON/OFF VGA_IN_R BL_ON/OFF VGASDA VGASDA VGASCL VGASCL HSYNC_VGA HSYNC_VGA VGA_PLUGPWR RSRXD VGAVSYNC# VGAVSYNC# RED_GND VGA_PLUGPWR RED_GND RSTXD VGA_PLUGPWR R1IN R1OUT GRN_GND R2IN R2OUT GRN_GND T1IN T1OUT BLU_GND BLU_GND T2IN T2OUT C41 0.1uF GREEN 0.1uF GREEN 4.7k 4.7k BLUE...
  • Page 20 D1V25 F_D[0..7] F_D[0..7] A_RA3 D_RA3 SDV25 SDV25 F_A1 F_D0 F_A[0..21] F_A[0..21] A_RA2 D_RA2 D_RA0 F_A2 F_D1 A_RA1 D_RA1 D_RA1 F_A3 F_D2 A_RA0 D_RA0 D_RA2 F_A4 F_D3 D_DQ0 D_DQ15 D_RA3 F_A5 F_D4 DQ15 A_DQS[0..3] A_DQS[0..3] 22x4 F_A6 F_D5 VDDQ VSSQ A_RA[0..11] A_RA[0..11] A_RA4 D_RA4...
  • Page 21 MT8203 ANALOG&DIGITAL DECOUPLING DV18A 100k FB11 DACVREF DACVREF DACFS DV18A ADCPLLVDD1 DACVREF DACFS C101 C102 DACFS ADCPLLVDD1 C103 XTALI XTALO 0603 4.7uF 0.1uF ADCPLLVDD1 0.1uF/NC C0603 C0603 ADCPLLVDD ADCPLLVDD C0603 27MHz APLLVDD APLLVDD ANALOGVDD C104 C105 ANALOGVDD 33pF 33pF VPLLVDD VPLLVDD AV33 LVDDA...
  • Page 22 DV33A 1N4148/SMD URST# URST# URST# A_DQS[0..3] A_DQS[0..3] A_RA[0..11] A_RA[0..11] A_BA[0..1] A_BA[0..1] A_DQM[0..1] A_DQM[0..1] 5 A_DQ[0..31] A_DQ[0..31] XTALI A_CLK A_CLK XTALI XTALO CE25 A_CLK# A_CLK# XTALO ANALOGVDD 10uF/50v A_CKE A_CKE ANALOGVDD SW4P/DIP/FLAT ADCVDD ADCVDD4 DE_DVI A_CS# A_CS# ADCVDD VFEVDD1 DE_DVI APLLVDD ADCVDD4 VSYNC_DVI A_RAS#...
  • Page 23 Power ON alive source CM1117-3.3V DV33 M1117-3.3V FB21 FB22 Vout DV33 CE26 0805 0805 CE27 CE28 C170 CE29 220uF/16v C171 220uF/16v C172 220uF/16v 0.1uF 220uF/16v C173 0.1uF 0.1uF 0.1uF SOT223 SOT223 DV33A DV33A CM1117-1.8V DV18A Vout FB23 CM1117-3.3V AV33 FB24 AV33 0805 CE30...
  • Page 24 MT8203E (PBGA388) LCDTV BOARD 4 LAYERS SCL_5V SCL_5V 7,10 01.INDEX & POWER CONNECTOR SDA_5V SDA_5V 7,10 +12V +12V 02. LDO TUNER_12V TUNER_12V ORO7 ORO7 03.MT8203 PBGA 388 04.MT8203 ANALOG&DIGIT DECOUPLE 05.DDR MEMORY & FLASH 06.VGA IN & PC AUDIO IN +12V 07.VIDEO IN &...
  • Page 25 Modify I2C by Zheng.Guo. 16/8 S1_AV1_L S1_AV1_L S1_AV1_R DV33A S1_AV1_R VGA_IN_L VGA_IN_L VGA_IN_R VGA_IN_R YPBPR1_L YPBPR1_L YPBPR1_R YPBPR1_R YPBPR2_L R190 YPBPR2_L YPBPR2_R 4.7k YPBPR2_R 2N7002 DACBCLK DACBCLK SCL_5V MODIFIED FROM 10K-->100K BY BIN_WANG .16/7/05.AVOID AUDIO BOMB WHEN OPEN THE POWER DACMCLK DACMCLK Del Parts...
  • Page 26 CVBS0---TUNER1 CVBS1---FRONT BD AV_IN TU_VCC AV , TUNER I/O TU_12V DIP11X2/P2.54/R2 VIDEO CONNECTOR SDA_5V SCL_5V Y1_INB CB1_INB SIF1_OUT Y1_GNDB CB1_GNDB AF1_OUT CR1_INB CR1_GNDB YPBPR1/L TV_GND YPBPR1/R CVBS0 CVBS1 CVBS1_GND AV_L CON12 AV_R SIP12\2 Y_GND SC_GND Y_GND SY_GND CB_GND CB_GND CR_GND CR_GND FB41 SY_GND...
  • Page 27 22pF +24V +24V 100K 100NF 100UF/25V 100K 4.7uF 100UF/25V 22UF/16V 4.7nF 100NF FILM PGND 10uH AUSPL 1000UF/25V AGND 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 28 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 100K AGND AGND AGND LOUT ROUT rca2 +24V...
  • Page 29 5VSB EC19 CF12 CA10 PQ2625B C15A DA10 R101 R113 EC13 R114 EC5A EC13 RK11 EC12 EC14 EC11 RK12 RK13 RK14 RK15 ON/OFF RK16 RK17 RK18 RK19 RF31 R112 +18V Title Size Number Revision Date: 20-Sep-2005 Sheet of File: D:\CCC\MLT186A-CCC\MLT186.DDB Drawn By:...
  • Page 30 R230 R115 RF20 24V/5A R116 DA12 EC15 DA11 14D681 R118 R117 R125 R124 R119 R129 380V +24V R120 R122 R126 R121 CA1A +2.5V R123 380V CON1 RK31 QA2A 104 50V R51A IEAO VEAO R51B R235 R236 R234 R233 VRMS PFCOUT PWOUT RAMP1 RAMP2...

  • Page 31: Basic Operations & Circuit Description

    Basic Operations & Circuit Description Main Electric Components (1). MODULE: There are 1 pc. panel and 2 pcs. PCB including 1 pc. INVERTER board(L), 1 pc. T-CONTROL board, (2).SIGNAL PROCESS There are 5 pcs. PCBs including 1 pc. Audio&Tuner board, 1 pc.

  • Page 32: Pcb Function

    PCB function 1. Power: (1). Input voltage: AC 100V~240V, 47Hz~63Hz. Input range: AC 90V(Min)~264V(Max) auto regulation. (2). To provide power for PCBs. a). +24V for Inverter. b). +5Vsb for standby, c). +5V for signal power, d). +24V for Audio Amp power and converter to e).

  • Page 33: Pcb Failure Analysis

    PCB failure analysis 1. CONTROL: a. Abnormal noise on screen. b. No picture. 2. MAIN (VIDEO): a. Lacking color, Bad color scale. b. No voice. c. No picture but with signals output, OSD and back light. d. Abnormal noise on screen. 3.
  • Page 34 LCD basic display theory. When an electrical field is applied to the LC planes, the LC molecules re-align themselves so that they are parallel to the electrical field. This electrical process is known as twisted nematic field effect or TNFE. In this alignment, polarized light is not twisted as it passes through the LC material (see Diagram 3A and 3B).
  • Page 35 LCD Panel Power Loader Speaker Terminal Remote Receiver Tuner Board Main Board Connect Board...

  • Page 36: Ic Descriptions

    IC DESCRIPTION -MT8205G -AT24C02 -MX29LV160BBTC -LP2996 -AZ1117/H -WM8776 -MX232A -ISAV330...
  • Page 37 Pinout information VFEVDD1 DE_DVI ADCVDD4 VSYNC_DVI HSYNC_DVI DVDD18 ADCVSS4 AOSDATA0 REFP4 AOSDATA1 REFN4 AOSDATA2 ADCVSS DVDD3I ADIN4 AOSDATA3 ADIN3 ADIN2 AOBCK ADIN1 AOLRCK ADIN0 AOMCLK ADCVDD DVSS3 PWM2VREF DQ24 AUXVTOP DQ25 AUXVBOTTOM DQ26 VPLLVSS DVDD2 VPLLVDD DQ27 DLLVDD DQ28 DLLVSS DVSS2 BGVSS DQ29...
  • Page 38 Pin Descriptions 2.3 Pin Descriptions Table 2-1 provides detail video/audio port pin descriptions. Table 2-1 video/audio port pin descriptions. Symbol Type Description Audio out master clock AOMCLK Audio out left-right clock AOLRCK Audio out bit clock AOBCK Audio out data line 0 AOSDATA0 Audio out data line 1 AOSDATA1...

  • Page 39: Pin Configurations

    AT24C01A/02/04/08/16 Features • Low Voltage and Standard Voltage Operation 5.0 (V = 4.5V to 5.5V) 2.7 (V = 2.7V to 5.5V) 2.5 (V = 2.5V to 5.5V) 1.8 (V = 1.8V to 5.5V) • Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K), 1024 x 8 (8K) or 2048 x 8 (16K) •...

  • Page 40: Pin Description

    Absolute Maximum Ratings* *NOTICE: Stresses beyond those listed under “Absolute Maxi- Operating Temperature....-55°C to +125°C mum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the Storage Temperature...... -65°C to +150°C device at these or any other conditions beyond those indi- cated in the operational sections of this specification is not Voltage on Any Pin...
  • Page 41 MX29LV160BT/BB 16M-BIT [2Mx8/1Mx16] CMOS SINGLE VOLTAGE 3V ONLY FLASH MEMORY FEATURES erase operation completion. • Extended single - supply voltage range 2.7V to 3.6V • Ready/Busy pin (RY/BY) • 2,097,152 x 8/1,048,576 x 16 switchable - Provides a hardware method of detecting program or •...
  • Page 42 November 2003 LP2996 DDR Termination Regulator General Description Features n Source and sink current The LP2996 linear regulator is designed to meet the JEDEC SSTL-2 specifications for termination of DDR-SDRAM. The n Low output voltage offset device contains a high-speed operational amplifier to provide n No external resistors required excellent response to load transients.
  • Page 43 TS5V330 QUAD SPDT WIDE BANDWIDTH VIDEO SWITCH WITH LOW ON STATE RESISTANCE SCDS164A – MAY 2004 − REVISED MAY 2004 Low Differential Gain and Phase D, DBQ, OR PW PACKAGE (TOP VIEW) = 0.64%, D = 0.1 Degrees Typ) Wide Bandwidth (BW = 300 MHz Min) Low Crosstalk (X = −63 dB Typ) TALK...
  • Page 44 37／75...
  • Page 45 19-0175; Rev 3; 5/96 ±15kV ESD-Protected, +5V RS-232 Transceivers _______________General Description ____________________________Features The MAX202E–MAX213E, MAX232E/MAX241E line ESD Protection for RS-232 I/O Pins: drivers/receivers are designed for RS-232 and V.28 ±15kV—Human Body Model communications in harsh environments. Each ±8kV—IEC1000-4-2, Contact Discharge transmitter output and receiver input is protected ±15kV—IEC1000-4-2, Air-Gap Discharge against ±15kV electrostatic discharge (ESD) shocks,...
  • Page 46 ±15kV ESD-Protected, +5V RS-232 Transceivers Table 3. DB9 Cable Connections Commonly Used for EIA/TIAE-232E and V.24 Asynchronous Interfaces CONNECTION Received Line Signal Detector (sometimes Handshake from DCE called Carrier Detect, DCD) Receive Data (RD) Data from DCE Transmit Data (TD) Data from DTE Data Terminal Ready Handshake from DTE...

  • Page 47: Lcd Panel Specification

    Meet with mega satisfaction SPECIFICATION FOR APPROVAL Part No. MLT186A Description: LCD Power Supply Specification Revision: Customer. SANSUI ELECTRIC Customer Approval No. : Please return to us one original of “SPECIFICATION FOR APPROVAL” with your approved signatures. APPROVED SIGNATURES APPROVED BY： DATE：...
  • Page 48 Spec. Sample Date Description Safety Mechanical Electrical Rev. Rev. 2005. Zhangzhi Tony Yang 09.12 DESCRIPTION: MEGMEET SPECIFICATION MEGMEET ELECTRICAL TECHNOLOGY CO., LTD. Model No.: THESE SPECIFICATION ARE THE PROPERTY OF MEGMEET ELECTRICAL TECHNOLOGY CO., LTD AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SELL MLT186 OF APPARATUSES OR DEVICES WITHOUT PERMISSION.

  • Page 49: Pin Connection

    Section 1. Power supply overview 1.1 Input Electrical Characteristics Overview 1.2 Output Electrical Characteristics Overview 1.2.1 Output Voltage ,Current & Regulation. 1.2.2 DC Output Ripple & Noise. 1.2.3 Output Transient Response. 1.2.4 DC Output Hold-Up Time. 1.2.4 DC Output Overshoot At Turn On & Turn Off. 1.2.6 DC output voltage rise time 1.3 Remote On/Off Control：...
  • Page 50 9. Power Supply mounting 1. Power Supply Overview: 1.1 Table 1 Input Electrical Characteristics Overview Input voltage range 90Vac to 264Vac Normal voltage range 100Vac to 240Vac Frequency range 50Hz/60Hz±5% Max input ac current 3.5Amax at full load condition Inrush current (cold start) 50Atyp peak, 120Vac;...
  • Page 51 2) Outputs shall be bypassed at the connector with a 0.1uF ceramic capacitor and a 10uF electrolytic capacitor to simulate system loading. 1.2.3 Output Transient Response. Table 4. Test condition. Voltage Tolerance Limit Slew Rate Load Change V1/V3±5% 0.2A/uS Min. to 50% load and 50% to Max load +V2 ±10% +5V±5% +5.1VSB±5%...
  • Page 52 ≤100 mS ≤100 mS +V3(+12V) ≤100 mS ≤100 mS ≤100 mS ≤100 mS +5.1VSB Note: The output voltages shall rise from10% to 90% of their output voltage. 1.3 Remote On/Off Control： The power supply DC outputs (without +5.1Vsb) shall be enable with an active-high 2.0V/2.0mA)-compatible signal(Ps-on).
  • Page 53 ≥7Atyp +V1(+24V) Shutdown ≥2Atyp +V2(+24V) Shutdown ≥3A +V3(+12V) Shutdown ≥9A type +5V/+5.1VSB Hiccup 1.4.3 Table 11 DC Output Short Circuit Protection. Output Voltage Comments +V1(+24V) Shutdown +V2(+24V) Shutdown +V3(+12V) Shutdown +5V/5.1VSB Hiccup 1.4.4 Reset After Shutdown. Recycle the ps-on signal, the power supply will restart after the fault removed. 2.
  • Page 54 4. EMC 4.1 EMI The power supply shall compliance with the following Criterion: 1) Conduction Emission : *EN55013, CLASS B *GB13837-2003, CLASS B *CISPR13:2001 2) Radiated Emission : *EN55013, CLASS B *GB13837-2003, CLASS B *CISPR13:2001 4.2 EMS The power supply shall compliance with the following Criterion: 1) ESD *GB17626.2-1998/IEC61000-4-2 Lever 3...
  • Page 55 6. Dimension （物理尺寸） * 200mm X 130mm X 25mm ( L *W * H 7. Weight * 680g 8. Pin Connection Table 15 CN3 VENTER: Pin Connection Function +24VAUDIO +24VDC OUTPUT +24VAUDIO +24VDC OUTPUT +24VDC RETURN +24VDC RETURN Note: CN3 -- JST VA CONNEETION, TYPE : pitch:2.0mm Table 16 CN2 VENTER: Pin Connection...
  • Page 56 +12V/+5VDC RETURN +5DC OUTPUT +5DC OUTPUT +5DC OUTPUT +5DC OUTPUT +5DC OUTPUT Note: CN2 -- JST VA CONNEETION, TYPE : pitch:2.0mm Table 15 CN4 VENTER: Pin Connection Function +5VSB +5VSB OUTPUT +5VSB +5VSB OUTPUT +5VSB RETURN +5VSB RETURN PS-ON PS-ON Note: CN3 -- JST VA CONNEETION, TYPE : pitch:2.0mm Table 18 CON1 VENTER:...
  • Page 57 DESCRIPTION: MEGMEET SPECIFICATION MEGMEET ELECTRICAL TECHNOLOGY CO., LTD. Model No.: THESE SPECIFICATION ARE THE PROPERTY OF MEGMEET ELECTRICAL TECHNOLOGY CO., LTD AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SELL MLT186 OF APPARATUSES OR DEVICES WITHOUT PERMISSION. REV: DATE PREPARED...
  • Page 58 DESCRIPTION: MEGMEET SPECIFICATION MEGMEET ELECTRICAL TECHNOLOGY CO., LTD. Model No.: THESE SPECIFICATION ARE THE PROPERTY OF MEGMEET ELECTRICAL TECHNOLOGY CO., LTD AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SELL MLT186 OF APPARATUSES OR DEVICES WITHOUT PERMISSION. REV: DATE PREPARED...
  • Page 59 9. Power Supply Mounting DESCRIPTION: MEGMEET SPECIFICATION MEGMEET ELECTRICAL TECHNOLOGY CO., LTD. Model No.: THESE SPECIFICATION ARE THE PROPERTY OF MEGMEET ELECTRICAL TECHNOLOGY CO., LTD AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SELL MLT186 OF APPARATUSES OR DEVICES WITHOUT PERMISSION.
  • Page 60 P r o d u c t S p e c i f i c a t i o n Ver05 DL-06 SPECIFICATION CUSTOMER： Slot-in DVD LOADER DESCRIPTION： MODEL： DL-06 series(DL-06**) 2005.11.02 ISSUE DATE： CUSTOMER APPROVED Checked by Checked by Approved Prepared Sales Dept.
  • Page 61 P r o d u c t S p e c i f i c a t i o n Ver05 DL-06 Scope This specification applies to Slot-in DVD mechanism for DVD player (thereafter called DVD mechanism ). Foryou model : DL-06**. Any query over the specification shall be expressed by R&D dept.
  • Page 62 P r o d u c t S p e c i f i c a t i o n Ver05 DL-06 3.1.7 Anti vibration: two steps of dampers to reduce the vibration. Power supply DC12 ±1V（600 mA）& DC5±0.2V (660 mA) . Pick-up 3.3.1 Pick-up ：...
  • Page 63 P r o d u c t S p e c i f i c a t i o n Ver05 DL-06 DVD Video; CD-DA; Video CD; CD-R, CD-RW; Prevention from the 2 disc insertion: the second disc can’t be loaded when there is a disc in mechanism.
  • Page 64 P r o d u c t S p e c i f i c a t i o n Ver05 DL-06 Temperature ~ +30 ：+15 ℃ ℃ Humidity ：45% ~ 75%RH Noise: in an anechoic room with background noise 20dB (A) or less. Test circuit and equipment 6.3.1 Refer FORYOU’s standard circuit and equivalent.
  • Page 65 P r o d u c t S p e c i f i c a t i o n Ver05 DL-06 7.1.4 High and low temperature cycling test Applied -20℃(1H)←→60℃(1H)(temperature slope 80℃/H)， 5cycles,then place at normal temperature for 16 hours, the mechanism shall be able to load/eject and playback within this process.(Test disc:TCD-792 and TDV-520A) 7.1.5...
  • Page 66 P r o d u c t S p e c i f i c a t i o n Ver05 DL-06 7.3.1 Shock test (1 time ,6ms), 70G crash impact on each of 6 sides of mechanism. Mechanism shall be able to playback standard disc TDV-520A and TCD-792. 7.3.2 Drop test After one time of drop test with surface, edge and corner (packing with 10sets...
  • Page 67 P r o d u c t S p e c i f i c a t i o n Ver05 DL-06 Handling: avoid extra force to the mechanism when handling. Static-proof action should be taken when touch the mechanism since LD and OEIC can be easily damaged by static.
  • Page 68 P r o d u c t S p e c i f i c a t i o n Ver05 DL-06 10.1《 》 Series Model Pick-Up SPINDLE MOTOR Loading motor： Sled motor： DL-06L PVR-520T CCM03-030R1-26 WFF-050SB-102 WRF-300CA-09 (MITSUMI) O (Moretech) Same as above DL-06LH HOP-1200...
  • Page 69 Preliminary TFT LCD Preliminary Specification MODEL NO.: V270B1 - L01 LCD TV Head Division ³¢®¶¶© TVHD / PDD QRA Dept. DDIII DDII Approval Approval Approval Approval ³¯¥Ã¤@ §õ¨L¬v ÂŤåÀA ªL¤åÁo LCD TV Marketing and Product Management Division ³¯¥ß©y Áªکy Product Manager...
  • Page 70 Preliminary - CONTENTS - REVISION HISTORY ------------------------------------------------------- 1. GENERAL DESCRIPTION ------------------------------------------------------- 1.1 OVERVIEW 1.2 FEATURES 1.3 APPLICATION 1.4 GENERAL SPECIFICATIONS 1.5 MECHANICAL SPECIFICATIONS 2. ABSOLUTE MAXIMUM RATINGS ------------------------------------------------------- 2.1 ABSOLUTE RATINGS OF ENVIRONMENT 2.2 ELECTRICAL ABSOLUTE RATINGS 2.2.1 TFT LCD MODULE 2.2.2 BACKLIGHT UNIT 3.

  • Page 71: Revision History

    Preliminary REVISION HISTORY Page Version Date Section Description (New) Ver 1.0 Jun. 15,’05 Preliminary Specification was first issued.

  • Page 72: General Description

    Preliminary 1. GENERAL DESCRIPTION 1.1 OVERVIEW V270B1- L01 is a TFT Liquid Crystal Display module with 14-CCFL Backlight unit and 1ch-LVDS interface. The display diagonal is 27”. This module supports 1366 x 768 WXGA format and can display true 16.7M colors(8-bits colors). The inverter module for backlight is built-in. 1.2 FEATURES - Excellent brightness (550 nits) - Ultra high contrast ratio (1000:1)

  • Page 73: Absolute Maximum Ratings

    Preliminary 2. ABSOLUTE MAXIMUM RATINGS 2.1 ABSOLUTE RATINGS OF ENVIRONMENT Value Item Symbol Unit Note Min. Max. Storage Temperature ºC Operating Ambient Temperature ºC (1), (2) Shock (Non-Operating) (3), (5) Vibration (Non-Operating) (4), (5) Note (1) Temperature and relative humidity range is shown in the figure below. (a) 90 %RH Max.

  • Page 74: Electrical Absolute Ratings

    Preliminary 2.2 ELECTRICAL ABSOLUTE RATINGS 2.2.1 TFT LCD MODULE Value Item Symbol Unit Note Min. Max. Power Supply Voltage -0.3 Input Signal Voltage -0.3 2.2.2 BACKLIGHT UNIT Test Item Symbol Min. Type Max. Unit Note Condition Lamp Voltage Ta = 25 ¢J ¡Ð...

  • Page 75: Electrical Characteristics

    Preliminary 3. ELECTRICAL CHARACTERISTICS 3.1 TFT LCD MODULE Ta = 25 ± 2 ºC Value Parameter Symbol Unit Note Min. Typ. Max. Power Supply Voltage Power Supply Ripple Voltage Rush Current RUSH White Power Supply Current Black Vertical Stripe 1.65 Differential Input High +100 LVTH...

  • Page 76: Backlight Inverter Unit

    Preliminary Note (3) The specified power supply current is under the conditions at Vcc = 5 V, Ta = 25 ± 2 ºC, f = 60 Hz, whereas a power dissipation check pattern below is displayed. b. Black Pattern a. White Pattern Active Area Active Area c.

  • Page 77: Inverter Characteristics

    Preliminary 3.2.2 INVERTER CHARACTERISTICS ( Ta = 25 ± 2 ºC) Value Parameter Symbol Unit Note Min. Typ. Max. Power Consumption (5), I = 4.7mA 22.8 25.2 Power Supply Voltage Power Supply Current Non Dimming Input Ripple Noise =22.8V Backlight Turn on 1790 Ta = 0 ºC Voltage...

  • Page 78: Inverter Intertface Characteristics

    Preliminary Note (4) The life time of a lamp is defined as when the brightness is larger than 50% of its original value and the effective discharge length is longer than 80% of its original length (Effective discharge length is defined as an area that has equal to or more than 70% brightness compared to the brightness at the center point.) as the time in which it continues to operate under the condition Ta = 25 ¡Ó...
  • Page 79 Preliminary Note (2) The power sequence and control signal timing are shown as the following figure. Toff 2.0V BLON 0.8V Backlight on duration 2.0V Int. Dimming Function 0.8V Ext. Dimming Function PWMF PWMR 2.0V EPWM 0.8V 3.0V IPWM External External PWM Duty Period Minimun...

  • Page 80: Block Diagram

    Preliminary 4. BLOCK DIAGRAM 4.1 TFT LCD MODULE FRAME BUFFER TFT LCD PANEL RX0(+/-) (1366x3x768) RX1(+/-) RX2(+/-) TIMING RX3(+/-) CONTROLLER RXCLK(+/-) DATA DRIVER IC DC/DC CONVERTER & REFERENCE VOLTAGE BACKLIGHT CN3-CN9:SM02 (8.0)B-BHS-1-TB(LF)(JST) UNIT INVERTER CONNECTOR CN1:S10B-PH-SM3-TB(D)(LF)(JST) CN2: S12B-PH-SM3-TB(D)(LF)(JST) E_PWM I_PWM BLON CN10: S2B-ZR-SM3A-TF (D)(LF)(JST)

  • Page 81: Interface Pin Connection

    Preliminary 5. INTERFACE PIN CONNECTION 5.1 TFT LCD MODULE CNF1 Connector Pin Assignment Pin No. Symbol Description Note Ground Display Rotation SELLVDS Select LVDS data format No Connection No Connection ODSEL Overdrive Lookup Table Selection EN LCS Low Color Shift Ground RX0- Negative transmission data of pixel 0...
  • Page 82 Preliminary 5.2 BACKLIGHT UNIT The pin configuration for the housing and leader wire is shown in the table below. CN3-CN9 (Housing): BHR-03VS-1 (JST) Pin No. Symbol Description Wire Color High Voltage Pink High Voltage White Note (1) The backlight interface housing for high voltage side is a model BHR-03VS-1, manufactured by JST. The mating header on inverter part number is SM02(8.0)B-BHS-1-TB(LF) or equivalent.

  • Page 83: Inverter Unit

    Preliminary 5.3 INVERTER UNIT CN1(Header):S10B-PH-SM3-TB(D)(LF)(JST) or equivalent. Name Description +24V Power input Ground CN2(Header): S12B-PH-SM3-TB(D)(LF)(JST) or equivalent. Name Description +24V Power input Ground Internal/external PWM selection High : external dimming Low : internal dimming External PWM control signal E_PWM E_PWM should be connected to low when internal PWM was selected (SEL = low).

  • Page 84: Block Diagram Of Interface

    Preliminary 5.4 BLOCK DIAGRAM OF INTERFACE CNF1 Rx0+ 51£[ RxOUT Rx0- 100pF TxIN R0-R7 R0-R7 51£[ Rx1+ G0-G7 51£ [ G0-G7 Rx1- 100pF 51£[ B0-B7 B0-B7 Rx2+ 51£[ Rx2- 100pF 51£[ Rx3+ 51£[ Rx3- 100pF 51£[ Host CLK+ 51£[ Graphics DCLK 100pF CLK-...

  • Page 85: Lvds Interface

    Preliminary 5.5 LVDS INTERFACE TRANSMITTER INTERFACE RECEIVER TFT CONTROL SIGNAL THC63LVDM83A CONNECTOR THC63LVDF84A INPUT SELLVDS SELLVDS SELLVDS SELLVDS INPUT Host TFT-LCD OUTPUT TxIN0 Rx OUT0 TxIN1 Rx OUT1 TxIN2 TA OUT0+ Rx 0+ Rx OUT2 TxIN3 Rx OUT3 TxIN4 Rx OUT4 TxIN6 TA OUT0- Rx 0-...

  • Page 86: Color Data Input Assignment

    Issued Date: Jun. 15, 2005 Model No.: V270B1 - L01 Preliminary 5.6 COLOR DATA INPUT ASSIGNMENT The brightness of each primary color (red, green and blue) is based on the 8-bit gray scale data input for the color. The higher the binary input, the brighter the color. The table below provides the assignment of color versus data input.

  • Page 87: Interface Timing

    Preliminary 6. INTERFACE TIMING 6.1 INPUT SIGNAL TIMING SPECIFICATIONS The input signal timing specifications are shown as the following table and timing diagram. Signal Item Symbol Min. Typ. Max. Unit Note Frequency 1/Tc Input cycle to LVDS Receiver Clock Trcl cycle jitter Setup Time Tlvsu...
  • Page 88 Preliminary LVDS RECEIVER INTERFACE TIMING DIAGRAM RXCLK+/- RXn+/- Tlvsu Tlvhd 11 T...

  • Page 89: Power On/Off Sequence

    Preliminary 6.2 POWER ON/OFF SEQUENCE To prevent a latch-up or DC operation of LCD module, the power on/off sequence should be as the diagram below. Power Supply 0.9 V 0.9 V 0.1Vcc 0.1V ¡Ø10ms 0¡ Ø T ¡Ø50ms 0¡ Ø T ¡Ø50ms 0¡...

  • Page 90: Optical Characteristics

    Preliminary 7. OPTICAL CHARACTERISTICS 7.1 TEST CONDITIONS Item Symbol Value Unit Ambient Temperature 25±2 Ambient Humidity 50±10 Supply Voltage Input Signal According to typical value in "3. ELECTRICAL CHARACTERISTICS" Lamp Current 4.7 ± 0.5 Oscillating Frequency (Inverter) 56 ± 3 7.2 OPTICAL SPECIFICATIONS The relative measurement methods of optical characteristics are shown in 7.2.
  • Page 91 Preliminary Note (1) Definition of Viewing Angle (θx, θy): Viewing angles are measured by EZ-Contrast 160R (Eldim) Normal θx = θy = 0º θy- θ 12 o’clock direction θ = 90º θx− θ = 90º θx+ 6 o’clock θ = 90º θ...

  • Page 92: Lcd Panel

    Preliminary Note (4) Definition of Luminance of White (L Measure the luminance of gray level 255 at center point and 5 points = L (5) = [L (1)+ L (2)+ L (3)+ L (4)+ L (5)] / 5 L (x) is corresponding to the luminance of the point X at the figure in Note (7). Note (5) Definition of Cross Talk (CT): CT = | Y –...
  • Page 93 Preliminary Note (7) Definition of White Variation (δW): Measure the luminance of gray level 255 at 5 points δW = Maximum [L (1), L (2), L (3), L (4), L (5)] / Minimum [L (1), L (2), L (3), L (4), L (5)] Horizontal Line 3D/4 : Test Point...

  • Page 94: Definition Of Labels

    Preliminary 8. DEFINITION OF LABELS 8.1 CMO MODULE LABEL The barcode nameplate is pasted on each module as illustration, and its definitions are as following explanation. E207943 CHI MEI V270B1 -L01 Rev. XX MADE IN TAIWAN OPTOELECTRONICS X X X X X X X Y M D L N N N N (a) Model Name: V270B1-L01 (b) Revision: Rev.

  • Page 95: Packaging

    Preliminary 9. PACKAGING 9.1 PACKING SPECIFICATIONS (1) 4 LCD TV modules / 1 Box (2) Box dimensions : 742(L) X 327 (W) X 510 (H) (3) Weight : approximately 19Kg ( 4 modules per box) 9.2 PACKING METHOD Figures 9-1 and 9-2 are the packing method LCD TV Module Carton dimensions: 742(L)x327(W)x510(H)mm Anti-Static Bag...
  • Page 96 Preliminary Corner Protector:L1020*50mm*50mm Pallet:L1100*W1100*H135mm Corrugated Fiberboard:L1100*W1100mm Pallet Stack:L1100*W1100*H1160mm Gross:168kg PE Sheet Carton Label Film PP Belt Figure. 9-2 packing method...

  • Page 97: Precautions

    Preliminary 10. PRECAUTIONS 10.1 ASSEMBLY AND HANDLING PRECAUTIONS (1) Do not apply rough force such as bending or twisting to the module during assembly. (2) It is recommended to assemble or to install a module into the user’s system in clean working areas. The dust and oil may cause electrical short or worsen the polarizer.

  • Page 98: Mechanical Characteristics

    Preliminary 11. MECHANICAL CHARACTERISTICS...
  • Page 99 Preliminary...

  • Page 100: Disassembly

    Disassembly In case of trouble, etc., Necessitating disassemble, please disassemble in the order shown in the illustrations. Reassemble in the reverse order. 1. Removal of the Back Cover 2. Removal of the MAIN PCB a. Remove the screws. Slide out the LCD chassis slightly; pull up the connector of AC cord from PCB; pull up the PCB from LCD.

  • Page 102: Spare Parts List

    Spare Part List for LCT2765TD Usage / Item Part Number Part Description Unit unit E6203-27CD02 DISPLAY LCD piece E7802-004008 MAIN BOARD E7802-005006 DVD BOARD piece E7802-005007 TUNER BOARD E7802-005008 POWER PCBA 771-L32AD01-02 KEY PCB ASSY 771-L32AD01-03 KEY PCB ASSY MICO DVD...

  • Page 103: Spare Parts List

    Spare Part List for LCT2765TD Usage / Item Part Number Part Description Unit unit 230-26LA11-01RV STAND COVER piece 200-L27AD01-MTD01AV CABINET FRONT SIL/BLK piece 202-L27AD01-01AV BACK CABINET BLACK piece 370-42D101-01 RUBBER FOOT piece E7301-011002 BATTERY AA piece 790-R00105-01 REMOTE CONTROL E4901-001005...

  • Page 104: V-Chip Password

    If you forget your V-Chip Password - Omnipotence V-Chip Password: 8205. - Press MENU button. - Press LEFT RIGHT buttons to highlight "MISC" Menu. - Press Up, Down buttons to highlight "Parentald". - Press ENTER button to pop up "Input your Password Please". - Use the Number buttons (0~9) to enter an omnipotence Password.

  • Page 105: Software Upgrade

    Software upgrade Process - Power Switch OFF. - Connect the serial port of the control device to the RS-232 jack on the LCD-TV back panel. RS-232C connection cables are not supplied with the LCD-TV. - Power Switch ON. The power indicator on the front of the panel should now display red, means that the LCD-TV is in standby mode.

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