Akai LCT3785TAJ Service Manual
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Akai LCT3785TAJ Service Manual

Akai LCT3785TAJ Service Manual

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Summary of Contents for Akai LCT3785TAJ

  • Page 2: Table Of Contents

    AKAI SERVICE MANUAL Model: LCT3785TA 1. Safety Instructions………………...………………………………………………….1~2 2. Trouble Shooting manual of LCD…………………………………………………….3~5 3. Product Specification………………………………………………………………….6~9 4. Block Diagram….…………………………………………………………………….10 5. Circuit diagram……………………………………………………………………….11~35 6. Basic Operation & Circuit Description………………………………………………36~38 7. Main IC Information…………………………………………………………………39~77 8. Panel Information……………………………………………………………………78~103 9. Explored View………………………………………………………………………104 10. Spare Pare List………………………………………………………………………105~107 11.

  • Page 3: 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 4 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 5: Trouble Shooting Manual Of Lcd

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  • Page 6 12 #( ! ! ( .8 ( 12 # ( %26* & 9 " 12 * .&2 12 * 4／126...
  • Page 7 " ,0 # +(4 $ < " 5／126...

  • Page 8: Product Specification

    Product Specification Product Model: LCT3785TA Screen Size: 37” diagonal Screen Area: 819.6mm(H) x 460.8mm(V) Aspect Ratio: 16:9 External Size: 926mm(W) x 724mm(H) x 267.5mm(D) (with Stand) Net Weight: 21.6kg (with Stand) Resolution: 1366 (H) x 768 (V) pixels (Each pixel has R/G/B 3 color cells) Pixel Dot Pitch: 0.6mm(H) x 0.6mm(V)
  • Page 9 Support the Signal Mode A. D-Sub Mode (VGA) Horizontal Vertical Resolution Frequency Frequency (kHz) (Hz) 31.50 60.00 640 x 480 37.86 72.81 35.16 56.25 800 x 600 37.90 60.32 48.08 72.19 1024 x 768 48.40 60.00 B. HDTV Mode (YPbPr) Horizontal Vertical Resolution Frequency Frequency (kHz)
  • Page 10 Remote Control   Power ( ): Press to turn on and off.   Mute ( ): Press to mute the sound. Press again or press VOL+/- to restore the sound.   0~9 Number Buttons: In TV mode, press 0~9 to select a channel;...
  • Page 11   PIC.Size: Press to change the screen size, such as Full, 4:3, Panoramic. (Note: In VGA mode, it can select picture size is Full. While in DTV mode, it can select picture size is: Full and 4:3. )   Recall: Press to return to previous channel.

  • Page 12: Block Diagram

    POWER BOARD Flash Optical 32mb Output 256M Standby 5V MT5351 MPEG Decoder TD1336 X6965D MT5111 Digital Tuner SAW Filter 256M DTV Demodulator 24VA (For Class D) 24V (For LCD Panel) DTV BOARD MAIN BOARD HDMI 74L VC245A X4 MT8293 24 bit RGB Switch HDMI Receiver Analog Tuner...

  • Page 13: Circuit Diagram

    LVDSVDD LVDSGND 2,3,4 9,14 9,14 URST# MT8202E (PBGA388) LCDTV BOARD 4 LAYERS FOR AKAI URST# 8202UP3_1 8202UP3_1 GPIO2 GPIO2 3,12 GPIO4 GPIO4 GPIO14 GPIO14 3,13 GPIO19 GPIO19 3,13 7,9,14 12,13 1. INDEX / POWER / RESET / EEPROM FB42 FB42...
  • Page 14 SB33B Power ON alive source 100uF/16v 100uF/16v 0.1uF 0.1uF AZ1117-3.3V AZ1117-3.3V SB33 SB33A SB18A AZ1117/adj AZ1117/adj 5VSB LVDS_GND LVDS_GND 3,4,12 SB33A SB18 SB18A VFE_GND VFE_GND 3,4,8,11 R773 R773 CE79 CE79 CE78 CE78 100uF/16v 100uF/16v 100uF/16v 100uF/16v CB10 CB10 0.1uF 0.1uF 100uF/16v 100uF/16v 0.1uF...
  • Page 15 SB33B TP23 TP23 820k 820k TP43 TP43 SB33B XTALI XTALO 27MHz 27MHz 22pF 22pF 27pF 27pF LVDS_GND AP[0..7] AP[0..7] AN[0..6] AN[0..6] CLK1+ CLK1+ AUDIO_GND CLK1- RS-232 CLK1- AUDIO_GND 4,10 AADCVSS 4x1 W/HOUSING 4x1 W/HOUSING AADCVSS 4,10 LVDS_GND PLLVDD1 DIP4/W/H/P2.0 DIP4/W/H/P2.0 LVDS_GND 2,4,12 PLLVDD1...
  • Page 16 STANDBY ANALOG POWER NORMAL ANALOG POWER ASB18A ASB18A XTALVDD XTALVDD XTALVDD PLLVDD1 ADCVDD ADCVDD AVICM CB26 CB26 CE24 CE24 CB27 CB27 AVICM 4.7uF 4.7uF 0.1uF 0.1uF 10uF/10V 10uF/10V 4.7uF 4.7uF 0.1uF 0.1uF PWM2VREF PWM2VREF LVDS_GND LVDS_GND LVDS_GND DACFS DACFS PLLVDD2 LVDDA ASB33A LVDDA...
  • Page 17 IOA1 F_D0 DV25B DV25B D1V25 IOA2 F_D1 A_RA3 D_RA3 IOA3 F_D2 A_RA2 D_RA2 IOA4 F_D3 A_RA1 D_RA1 D_RA3 IOA5 F_D4 A_RA0 D_RA0 D_DQ0 D_DQ15 D_RA2 IOA6 F_D5 DQ15 D_RA1 IOA7 F_D6 VDDQ VSSQ 22x4 22x4 D_DQ1 D_DQ14 D_RA0 F_A8 F_D7 DQ14 A_RA6 D_RA6...
  • Page 18 AVCC AZ1117-1.8 AZ1117-1.8 DV33B DV33B AVCC VCC18 VI[0..23] CE609 CE609 VI[0..23] HDMICEN CB210 CB210 HDMICEN CE610 CE610 C611 C611 CE611 CE611 CE612 CE612 HDMIODCK 1000pF 1000pF 10uF/16v 10uF/16v 0.1uF 0.1uF CB211 CB211 DIODE EGA-0603 DIODE EGA-0603 HDMIODCK 0.1uF 0.1uF HDMIDE 100uF/16v 100uF/16v 47uF/16v...
  • Page 19 TXD:MT5351 Transmit RXD:MT5351 Receiver SB33B HDMIMCLK TXD1:MT5351& MT8205 Communication HDMIMCLK HDMIBCLK RXD1:MT5351& MT8205 Communication HDMIBCLK HDMILRCK HDMILRCK HDMISD0 R354 R354 0/NC 0/NC HDMISD0 R355 R355 0/NC 0/NC HDMIDE change 2/16 TXD1 R356 R356 HDMIDE HDMIODCK RXD1 R357 R357 HDMIODCK HDMIHSYNC DV33B HDMIHSYNC HDMIVSYNC...
  • Page 20 SWV9 INPUT ADC_IN0 ADC_IN0 CCIR_V0 CCIR_V0 CCIR_V5 R372 R372 CCIR_V5 CCIR_V7 100k 100k CCIR_V7 CE115 CE115 GPIO11 GPIO11 GPIO15 DV33B AV1_R GPIO15 GPIO16 GPIO16 GPIO17 0/NC 0/NC SWV9 GPIO17 22uF/25v 22uF/25v GPIO18 100k 100k GPIO18 VFE_GND SB33B R373 R373 VFE_GND 2,3,4,11 AADCVSS AADCVSS...
  • Page 21 CE119 CE119 AV_R HPVDD 10uF/25v 10uF/25v R398 R398 AV_L CE120 CE120 R399 R399 10uF/25v 10uF/25v C181 C181 CB63 CB63 YPBPR3_R CE121 CE121 10uF/25v 10uF/25v R400 R400 0.1uF 0.1uF 10uF/25v 10uF/25v SCL_8202 R401 R401 SCL14 SCL_8202 INPUT YPBPR3_L CE122 CE122 10uF/25v 10uF/25v R402 R402...
  • Page 22 CVBS0 CVBS0 CVBS1 CVBS1 CVBS2 CVBS2 THIS PAGE NEARLY IC C112 C112 4.7nF 4.7nF SOY0 CVBS_0 R197 R197 C110 C110 47nF 47nF CVBS0 C113 C113 330pF 330pF PB0+ R199 R199 C115 C115 100nF 100nF PB0+ PB0- PB0- PR0+ TV_GND PR0+ PR0- C116 C116...
  • Page 23 NEARLY 8202 NEARLY VGA CON RED+ RED+ VGA IN RED- RED- GREEN+ GREEN+ GREEN- GREEN- BLUE+ BLUE+ BLUE- RED+ BLUE- R435 R435 R132 R132 10nF 10nF VGASOG VGASOG VGAHSYNC# VGAHSYNC# D-SUB15 FEMALE D-SUB15 FEMALE VGAVSYNC# VGAVSYNC# DSUB15/DIP/F DSUB15/DIP/F 0/NC 0/NC R729 R729 DIODE SMD BAV99...
  • Page 24 GPIO0 GPIO0 GPIO2 GPIO2 CLK1+ CLK1+ CLK1- CLK1- AP[0..7] AP[0..7] AN[0..6] AN[0..6] LVDS_GND LVDS_GND 2,3,4 LVDSVDD 5VSB SB33B LVDSGND 2,3,4 CCIR_VCLK CCIR_VCLK CCIR_V4 CCIR_V4 LVDS OUT(Include PDP and 32' LCD LVDS interface) FCLK FCLK FCMD FCMD FDAT FDAT SCL_8202 SCL_8202 3,6,9 SDA_8202 CPUGO /PDPGO :INPUT TO PDP...
  • Page 25 3,15 GPIO10 GPIO10 SB33B GPIO12 KEYPAD GPIO12 GPIO13 GPIO13 5VSB SB33B GPIO14 R384 R384 R385 R385 R386 R386 R387 R387 R388 R388 R389 R389 GPIO14 PWM0 PWM0 R657 R657 PWM1 PWM1 R0603/SMD R0603/SMD 1000pF 1000pF TV/AV 8202UP3_0 GPIO12 TV/AV 1000pF 1000pF MENU 8202UP3_0...
  • Page 26 CVBS_0 CVBS_0 TV_GND TV_GND FQ1216 : PAL ADDRESS ADC_IN4 FQ1236 : NTSC TUNER ADC_IN4 SIF_9V 1,7,9 TUNER SIF1NTSC 4.5MHz BPF CE617 CE617 10uF/25v 10uF/25v R423 R423 FQ1236-MK3 FQ1236-MK3 C10UF25V/D4H5 C10UF25V/D4H5 R422 R422 1.8K 1.8K C645 10nF C645 10nF 1000pF/27pF 1000pF/27pF C646 C646 R418...
  • Page 27 GPIO1 GPIO1 3,13 SY_1 SY_1 AV1_R AV1_R SY_1_GND AV /YC VIDEO IN AV /YC AUDIO IN SY_1_GND DIODE SMD BAV99 DIODE SMD BAV99 SC_1 SC_1 AV1_IN 1.8uH 1.8uH R113 R113 CVBS_1 AV2_IN 1.8uH 1.8uH R125 R125 CVBS_2 R240 R240 SC_1_GND SC_1_GND SY_L SY_0...
  • Page 28 AOSDATA2 GPIO DECRIPTION AOSDATA2 AOMCLK AOMCLK AOBCLK UP3_4 : SW SCL AOBCLK AOLRCK AOLRCK UP3_5 : SW SDA SPOUTR SPOUTR AUSPR ERO0/UP3_0 :KEYPAD POWER AUSPR AUSPL AUSPL OPOUTR ERO1/UP3_1 : MAIN POWER SWITCH OPOUTR OPOUTL OPOUTL A_MUTE VCLK : KEPAD CH+ A_MUTE 9,17 AOSDATA2...
  • Page 29 GPIO8 GPIO8 GPIO9 GPIO9 AUSPR AUSPR 9,16 AUSPL AUSPL 9,16 A_MUTE A_MUTE OPOUTR OPOUTR OPOUTL OPOUTL R2S15102NP R2S15102NP 1000uF/35v 1000uF/35v R193 150K R193 150K C662 3pF C662 3pF CE166 CE166 OPOUTL 2.2uF/50v 2.2uF/50v CE168 CE168 R184 R184 LOUT PWM1 INTL ACM3225-102-2P ACM3225-102-2P 2.2uF/50v...
  • Page 30 MT5351RA-V2 MT5111 / MT5351 REFERENCE DESIGN - 4 LAYERS BEAD/SMD/1206 +12V CB142 220uF/16v 0.1uF History DATE C220UF16V/D6H11 C0603/SMD RA-V1 INITIAL VERSION 2005/06/15 +12V +12V BEAD/SMD/1206 RA-V2 ADDED AUDIO SWITCH / REFINE POWER CIRCUIT 2005/07/14 DV33 2,5,6,8 DV33 220uF/16v 8x1 W/HOUSING DIP8/W/H/P2.54 C220UF16V/D6H11 2,3,4,5,6,7,8...
  • Page 31 BEAD/SMD/0805 DV33 +12V +5V_TUNER BEAD/SMD/0805 220uF/16v 0.1uF 220uF/16v AZ1117/adj 0.1uF +12V +12V +5V_TUNER C220UF16V/D6H11 C0603/SMD SOT223/SMD R0603/SMD C220UF16V/D6H11 C0603/SMD BEAD/SMD/0805 DV33 VOUT 1,5,6,8 DV33 220uF/16v 0.1uF 220uF/16v 0.1uF +5V_TUNER CB157 +5V_TUNER C220UF16V/D6H11 C0603/SMD C220UF16V/D6H11 C0603/SMD CE32 0.1uF DV33_DM DV33_DM AP1084/TO220-DIP/5V 220uF/16v DV18 DV18...
  • Page 32 +5V_TUNER CB17 BEAD/SMD/0805 +5V_TUNER CE17 0.1uF 10uF/16v C0603/SMD C10UF16V/D5H11 Outdoor PS VS_splitter_+5V OOB_OP RF_AGC R0603/SMD R0603/SMD R0603/SMD R0603/SMD TUNER_SCLO R0603/SMD TUNER_SDAO +5V_TUNER VS_Tuner_+5V Broad_IF_OP IF_AGC CB18 BEAD/SMD/0805 CE18 Narrow_IF_OP1 0.1uF 10uF/16v Narrow_IF_OP2 C0603/SMD C10UF16V/D5H11 IF_AGC 4.7K R0603/SMD PORT TUNER TD1336/FGHP 10nF C0603/SMD +5V_TUNER...
  • Page 33 +5V_TUNER +5V_TUNER DV33_DM DV33_DM DV18 DV18 1,2,3,5,6,7,8 ORESET# 1,5,8 ORESET# DVDD33 GLOBAL SIGNAL MT5111_RF_AGC R F_AGC R F_AGC R F_AGC R F_AGC RF_AGC IF_AGC IF_AGC R0603/SMD 47nF C0603/SMD 2nd_IF+ 2nd_IF+ 2nd_IF- 2nd_IF- MT5111_IF_AGC IF_AGC IF_AGC IF_AGC IF_AGC IF_AGC IF_AGC TUNER_SCLO TUNER_SCLO TUNER_SDAO TUNER_SDAO...
  • Page 34 IOR_Y6 TP/SMD/D1.0 IOB_Y5 TP/SMD/D1.0 IOG_Y4 TP/SMD/D1.0 DV33 1,2,6,8 DV33 DV25 2,6,7 DV25 DV12 DV12 1,2,3,4,6,7,8 DV12 ORESET# 1,4,8 ORESET# REQUEST# REQUEST# READY# READY# OSDA0 OSDA0 OSCL0 OSCL0 OPWM0 OPWM0 DV33 OXTALI OXTALI OXTALO OXTALO POWE# IOVDD POWE# POCE0# VCXO0 IOVDD POCE0# VCXO0 POOE0#...
  • Page 35 NS/560 R0603/SMD NS/10M R0603/SMD DV33 U2CTS OXTALI OXTALO CB42 NS/10 0.1uF R0603/SMD NS/27MHz C0603/SMD AV33 AV33 CRYS/DIP/SMD OSC1 CAPVPLL CAPVGND APLLCAP1 APLLCAP0 DV33 NS/74.25MHz 1,2,5,8 DV33 TP/SMD/D1.0 NS/20pF NS/20pF AV33 OSC/SMD/A AV33 C0603/SMD C0603/SMD 5600pF DV25 2,5,7 DV25 C0603/SMD 1500pF 1500pF NS/50 NS/50...
  • Page 36 +1V25_DDR +1V25_DDR DV25 DV25 DV25 DV25 RWE# RN14 22x4 MEM_WE# MEM_ADDR5 RN15 75x4 RDQ0 RN16 47x4 MEM_DQ0 RN17 75x4 R CAS# MEM_CAS# MEM_ADDR4 RDQ1 MEM_DQ1 RCS# MEM_CS# MEM_ADDR13 RDQ2 MEM_DQ2 RBA0 MEM_BA0 MEM_WE# RDQ3 MEM_DQ3 RA10 RN18 22x4 MEM_ADDR10 MEM_ADDR10 RN19 75x4 RDQ4...
  • Page 37 PDA1 PDD0 PDA2 PDD1 PDA3 PDD2 DV33 DV33 1,2,6 PDA4 PDD3 DV33 1,2,5,6 DV33 PDA5 PDD4 PDA6 PDD5 1,2,3,4,5,6,7 PDA7 PDD6 PDA8 PDD7 NS/4.7K NS/4.7K R0603/SMD R0603/SMD PDA9 ORESET# 1,4,5 ORESET# PDA10 PDA0 PDA1 PDA2 PDA11 GLOBAL SIGNAL PDA12 PDA13 ORESET# NS/4.7K PDA14...

  • Page 38: Basic Operation & Circuit Description

    Basic Operations & Circuit Description MODULE There are 1 pcs panel and 5 pcs PCB including 3 pcs Extension PCB, 1 pcs Timming controller board and 1 pcs Back Light board in the Module. There are 6 pcs PCBs including 1 pcs ATV Tuner board, 1 pcs keypad board, 1 pcs Remote Control Receiver board, 2 pcs L/R Speakers and 1 pcs Main(Video)board, 1 pcs ATSC board in the SET.
  • Page 39 PCB funtion 1. Power : (1). Input voltage: AC 120V, 60Hz. (2). To provide power for PCBs. 2. Main board : To converter TV signals, S signals, AV signals, Y Pb/Cb Pr/Cr signals, DVI/HDMI signals and D-SUB signals to digital ones and to transmit to Control board. 3.
  • Page 40 PCB failure analysis 1. CONTROL : a. Abnormal noise on screen. b. No picture. 2. MAIN : a. Lacking color, Bad color scale. b. No voice. (Make sure status: Mute / Internal, External speaker) c. No picture but with signals output, OSD and back light. d.

  • Page 41: Main Ic Information

    Main IC Specifications - M13S128168A (ESMT) 2M x 16 Bit x 4 Banks Double Data Rate SDRAW - MT5111CE Single-Chip HDTV/CATV Demodulator - MT5351 MT5351 is a DTV Backend Decoder SOC which support flexible transport demux, HD MPEG-2 video decoder, MPEG1,2, MP3, AC3 audio decoder, HDTV encoder. MT5351 is powered by ARM 926EJ with 16K I-Cache and 16K D-Cache.
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  • Page 67 R2S15102NP Digital Power Amplifier 10Wx2ch(SE)/20Wx1ch(BTL) Digital Audio Power Amplifier 1.Outline   R2S15102NP is a Digital Power Amplifier IC developed for TV.   R2S15102NP can realize maximum Power 10W × 2ch Ｆｉｇ．１ Package (VD = 24V,THD = 10%, SE) at 8 Ω load.   It is possible to replace from the conventional analog amplifier ２０...
  • Page 68 R2S15102NP Digital Power Amplifier ５．Pin Configuration(Table.1) NAME Description Power Output pin #1 OUT1 Power supply pin for power output stage #2 − Stand-by control pin. When this is “L”, circuit current is STBYL reduced.There is the pull-down resistor:50Kohm(typ.). PWM input pin #1 ( for phase compensation) PWM1 Analog input #1.
  • Page 69 R2S15102NP Digital Power Amplifier ６．Absolute Maximum Rating(Table.2) Symbol Parameter Condition Value Unit VD max Maximum VD Voltage VD1,VD2 pin volta HB max Maximum HB Voltage HB1、HB2 pin voltage Power dispassion Ta = 25°C :See Fig.3 See Fig.3 θja ℃/W Thermal Resistance ximum Temperature ℃...
  • Page 70 R2S15102NP Digital Power Amplifier Consideration about the PCB design The Power dispassion at 10Wx2ch(SE) or 20Wx1ch(BTL) is estimated almost 2W. It has enough margin, designing the PCB at θja=30℃/W. (1)PCB basic design (copper plane) <the best design : 4 layer PCB> GND plane Power plane thermal via <PCB size estimation >...
  • Page 71 R2S15102NP Digital Power Amplifier ７．Recommended Operating condition(Table.3) Symbol Parameter Condition Unit Supply Voltage VD1,VD2 pin voltage YL、MUTEL Control voltage of high level Control voltage of low level STBYL、MUTEL fosc Carrier Frequency R= 33ｋΩ ・ STBYL: High level:normal operation (note) Low level:Stand-by ・...
  • Page 72 R2S15102NP Digital Power Amplifier (note) “R for GND” ‘s are ９．Application Examples for the evaluation only and not needed actually. Fig.4  SE operation mode(10Wx2ch) 0.1u 1000u VD=+11〜25V 0.047u 0.1u 0.1u 20 19 Vz=27〜３０V 15uH Vz=27〜３０V 15uH 330u 330u OUT1 OUT2 Exposed 8Ω 8Ω...
  • Page 73 R2S15102NP Digital Power Amplifier (note) Fig.6  BTL operation mode(20W)  “R for GND” ‘s are for the evaluation only and with PWM direct input not needed actually. 8Ω 0.1u 1000u VD=+11〜25V 0.047u 0.1u 0.1u 20 19 Vz=27〜３０V 15uH Vz=27〜３０V 15uH BTL Configuration OUT1 OUT2 Exposed Die Pad 0.1u 0.1u R2S15102...
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  • Page 80: Panel Information

    CPT TFT-LCD CLAA370WA02 78／126...
  • Page 81 CONTENTS 1. OVERVIEW 1.1 General Information 1.2 Mechanical Information 2. ABSOLUTE MAXIMUM RATINGS 3. ELECTRICAL CHARACTERISTICS 3.1 TFT-LCD module 3.2 Power Sequence 3-3 Backlight Inverter Unit 4. INTERFACE PIN CONNECTION 4.1TFT LCD Module 4-2 LVDS Data Mapping 4.3 Inverter 5. INTERFACE TIMING(DE only mode) 5.1 Timing Specification 5.2 Timing Chart 5.3 Color data assignment...

  • Page 82: Overview

    1. OVERVIEW CLAA370WA02 is 37” color (94.03cm) TFT-LCD (Thin Film Transistor Liquid Crystal Display) module composed of LCD panel, LVDS driver ICs, control circuit and backlight. By applying 8 bit digital data, 1366*768, 16.7 million-color images are displayed on the 37” diagonal screen. Inverter for backlight is included in this module.

  • Page 83: Absolute Maximum Ratings

    2. ABSOLUTE MAXIMUM RATINGS The following are maximun values which, if exceeded, may cause faulty operation or damage to the panel module. ITEM SYMBOL MIN. MAX. UNIT REMARK Power Supply Voltage For LCD -0.3 14.0 Input voltage of inverter -0.3 Inverter dimming VDIM -0.3...

  • Page 84: Electrical Characteristics

    3. ELECTRICAL CHARACTERISTICS 3.1 TFT-LCD MODULE Ta=25℃ ITEM SYMBOL MIN UNIT REMARK 11.4 12.0 12.6 LCD Power Supply Voltage Ripple Voltage Vrpd mVp-p VIN=+12.0V Rush current Irush White LCD Power Black Supply Current RGB stripe 6.84 LCD power consumption High input voltage of LVDS Low input voltage of LVDS 1.25 nput common voltage of LVDS...
  • Page 85 FUSE LCD Module 2SK1475 Input +12V 2SK1470 (High to low) (control signal) 0.01uF +15V [Note 3] The specified power supply current is under condition at Vcc=12V, Ta=25+/-2℃, =60Hz, whereas a power dissipation check pattern below is displayed. a. White pattern b.

  • Page 86: Power Sequence

    3-2 POWER SEQUENCE VCC：12V Power Supply (VCC：12V) Interface Signal (LVDS Data with H,Vsync and DE) BL on Power Supply for Backlight Power Sequence Table Value Parameter Unit 2000 1000 [Note 1] Please avoid floating state of interface signal at invalid period. [Note 2] When the interface signal is invalid, be sure to pull down the power supply of LCD to 0V.

  • Page 87: Backlight Inverter Unit

    3-3 BACKLIGHT INVERTER UNIT ITEM SYMBOL UNIT REMARK Lamp voltage 1400 Vrms IL=5.0mA Lamp current mArms Lamp life time 50000 Input voltage of inverter 21.6 26.4 IIN0 (5.7) Input current of inverter (5.4) Lamp frequency 61.5 63.5 65.5 Inverter dimming voltage VDIM Inverter duty ratio VDIM=5V(MAX.)
  • Page 88 [Note3] Ripple voltage that occur at the instant of power-on can’t exceed 30V. [Note4] 25°C; V = 5V(MAX.), After power on for 5 seconds. [Note5] 25°C; V = 5V(MAX.), After power on for 30 Minutes. [Note6] Electrical and optical characterisitics color chromaticity are not included for being maintainable in a range +/- 10% when the inverter operates within this frequency range.

  • Page 89: Interface Pin Connection

    4. INTERFACE PIN CONNECTION 4.1 TFT LCD MODULE Connector Part No.: 20389-030E (I-PEX) Pin NO Symbol Description Note Power supply: +12V Power supply: +12V Ground Ground RxIN0- Data- RxIN0+ Data+ Ground RxIN1- Data- RxIN1+ Data+ Ground RxIN2- Data- RxIN2+ Data+ Ground RxCLKIN- Clock-...

  • Page 90: Lvds Data Mapping

    4-2 LVDS DATA MAPPING 1) Pin 27: GND, Non-JEIDA mode Non-JEIDA SPEC T(CLK) RXCLK RXIN0 RXIN1 RXIN2 DENA Vsync Hsync Preserve RXIN3 PREVIOUS 1 Cycle NEXT Note: R/G/B[7]s are MSBs and R/G/B[0]s are LSBs 2) Pin 27: NC, JEIDA mode JEIDA SPEC T(CLK) RXCLK...

  • Page 91: Inverter

    4-3. INVERTER Connector 1) Connector (Receptacle) S14B-PH-SM3-TB (JST) or compatible. 2) Mating connector (Plug) PRH-14 (JST) or compatible. PIN NO DESCRIPTION NOTE SYMBOL Supply Voltage 24V Supply Voltage 24V Supply Voltage 24V Supply Voltage 24V Supply Voltage 24V Ground Ground Ground Ground Ground...

  • Page 92: Interface Timing(De Only Mode)

    5. INTERFACE TIMING 5-1 TIMING SPECIFICATION Signal Item Symbol Unit Note Clock Frequency 1/Tc 62.7 Frame Rate ertcial Active Total Tv=Tvd+Tvb Display Term Display Blank Total 1575 1648 1936 Th=Thd+Thb Horizontal Active Display 1366 1366 1366 Display Term Blank 5-2. TIMING CHART DCLK First Data DATA...

  • Page 93: Color Data Assignment

    5-3. COLOR DATA ASSIGNMENT Input Color Data Green Blue Color R7 R6 R5 R4 R3 R2 R1 R0 G7 G6 G5 G4 G3 G2 G1 G0 B7 B6 B5 B4 B3 B2 B1 B0 Black Red(255) Green(255) Blue(255) Basic Color Cyan Megenta Yellow...

  • Page 94: Block Diagram

    6. BLOCK DIAGRAM 6.1 TFT LCD MODULE DC/DC Converter Source Driver IC Reference Voltage +12V S1366X3 LVDS 5 Pairs TFT-LCD Panel (1366 X RGB X 768 Pixels) Timing Controller Option Over Driver Controller G768 G768 LVDS input +24V BL Inverter Back-Light Unit 6-2.

  • Page 95: Mechanical Specification

    7. MECHANICAL SPECIFICATION 7-1. FRONT SIDE (Include Inverter, if the dimension is not clear, please refer to the table.) [Unit: mm] 93／126...

  • Page 96: Rear Side

    7-2. REAR SIDE (Include Inverter, if the dimension is not clear, please refer to the table.) [Unit: mm] 94／126...

  • Page 97: Optical Characteristics

    8.OPTICAL CHARACTERISTICS Ta = 25°C, VCC=12V ITEM MIN. TYP. MAX. UNIT SYMBOL CONDITION REMARKS θ = ψ﹦0° Contrast (CEN) 1000 *1)*2)*3) Point-5 Central θ = ψ﹦0° cd/m luminance Luminance θ = ψ﹦0° Luminance cd/m *2)*3) (AVG) θ = ψ﹦0° Uniformity *2)*3) △...
  • Page 98 Measurement Condition: After lighting on the panel 30 mins, you can proceed the Measurement testing. The definiton of Typ value is under status of lamp current as V = 5V after power on for 30 minutes Definition of these measurement items is as follows: [Note1] Definition of Contrast Ratio: ［...
  • Page 99 [Note3] Definition of Viewing Angle ( θ, ψ Figure 8-2. Definition of Viewing Angle [Note 4] Definition of Response Time ( White – Black ) White(255 Luminance Black(0) Figure 8-3. Definition of Response Time ( White – Black ) [Note 5] Definition of Response Time ( Gray to Gray, 5 × 5 levels ) (0~255 Luminance (Gray Scale Level)
  • Page 100 The driving signal time means the signal of gray level 0、63、127、191、255. Gray to gray average means the average switching time of gray level 0、63、127、191、 255 to each other. The LCD module should be stabilized at given temperature for 1 hour to avoid abrupt temperature change during measuring.
  • Page 101 [Note 7] Definition of Cross Talk Ratio CMR = MAX ( ( | ( LB1-LA ) / LC | ) × 100 ﹪ ﹪ , ( | (LB2 – LA ) / LC | ) × 100 LA: Pattern A (Half-Tone pattern) Measure point Luminance LB1, LB2: Pattern B1, Pattern B2 Measure point Luminance LC: Pattern C(white pattern) Measure point Luminance Pattern B1...

  • Page 102: Reliability Test Conditions

    9.RELIABILITY TEST CONDITIONS 9-1 .TEMPERTURE AND HUMIDITY TEST ITEMS CONDITIONS High Temperature Operation 50 ; 240hrs ℃ High Temperature Storage 60 ; 240hrs ℃ High Temperature 50 ; 90% RH; 240 hrs ℃ High Humidity Operation (No condensation) Low Temperature Operation 0 ;...

  • Page 103: Handling Precautions For Tft-Lcd Module

    10. HANDLING PRECAUTIONS FOR TFT-LCD MODULE Please pay attention to the followings in handling TFT-LCD products. 10.1 ASSEMBLY PRECAUTION (1) Please use the mounting hole on the module side in installing and do not beading or wrenching LCD in assembling. And please do not drop, bend or twist LCD module in handling. (2) Please design display housing in accordance with the following guidelines.

  • Page 104: Operating Precautions

    (9) Please pay attention to handling lead wire of backlight so that it is not tugged in connecting with inverter. 10.2 OPERATING PRECAUTIONS (1) Please be sure to turn off the power supply before connecting and disconnecting signal input cable. (2) Please do not change variable resistance settings in LCD module.

  • Page 105: Others

    10.6 OTHERS (1) A strong incident light into LCD panel might cause display characteristics' changing inferior because of polarizer film, color filter, and other materials becoming inferior. Please do not expose LCD module direct sunlight Land strong UV rays. (2) Please pay attention on the side of LCD module do not contact with other materials in preserving it alone.

  • Page 106: Explored View

    104／126...

  • Page 107: Spare Pare List

    BLACK 1> 510-L37SD01-11AK CARTON BOX AKAI LCT3785TA S- 1.000000 Piece MT8202 AUO PANEL K 2> 580-L37AD4A-03AP IB E FOR AKAI LCT3785TA TV+DTV W/O 1.000000 Piece PIP AU S-MT8202 USA 3> E3407-081001 CORD FFC P0.5 50P L=110 B-0.5-50X110- 1.000000 Piece 4(8)X4(8)-0.3X0.035 4>...
  • Page 108 Spare part list for LCT3785TAJ 19> 310-444750-07V POLYBAG 44X47X50 1.000000 Piece 20> 370-42D102-01 PAD CORD SPONG FOR SPK 1.000000 Piece 21> 388-42SB04-01H POWER PLATE SANSUI 42SB H 1.000000 Piece 22> 389-L32AB01-01 PVC SHEET L32AB 2.000000 Piece 23> 420-L37AD14-01S MAIN SUPPORT "R"...
  • Page 109 Spare part list for LCT3785TAJ 39> 590-L37AD01-04AP WARRANTY CARD AKAI ENG LCT3785TA 1.000000 Piece (II) USA P 40> 593-L37AD01-04AP AKAI INSERTION CARD ENG LCT3785TA 1.000000 Piece (II) USA P 41> E3219-002003 EI I LET EMI FILTER WIT WIRES IOSSI-R- 1.000000 Piece Q(B) HIGH&LOW...

  • Page 110: If You Forget Your V-Chip Password

    If you forget your V-Chip Password - Omnipotence V-Chip Password: 8202. Using the “Change Password” item When enter the “V-Chip” menu, select “Change Password”. Press ▲ or ▼ button to highlight the “Change Password” item. Press Enter button to confirm and pop up a menu. Use 0~9 buttons input the omnipotence password(8202), then Press Enter button to enter and pop up a menu.

  • Page 111: Software Upgrade

    Software Upgrade Process of update MT8202 Preparing : 1． Connect the Plasma/LCD TV and PC with the Software Upgrade Board.Please find the details for connecting refering to the appendix at the end of this file. 2． Store the MtkTool into the PC . Downloading : 3．...
  • Page 112 6． Choose the bit rate as 115200. 7． Select the update binary by pressing browse button. For example,the binary file name is (this update firmware will be sent to your side) PDP4210EA1_V09.bin. 8． Press Upgrade button and start update process. 110／126...
  • Page 113 9． The update process is successful as the progress bar is 100%. After the update process is ok, 111／126...
  • Page 114 turn off power and wait indicator light is off. Turn on power and TV can work. Checking It is needed to check the version of the firmware for MT8202 which has been download into the Plasma TV . Press Menu button of the remote control，following input “8202”of the remote control and OSD menu for Factory Setting is appeared on the screen .
  • Page 115 Connect another side of RS232 cable (#2) to the board (#1) 2.2 Connect RS232-VGA cable (#4) (RS232 side) to the board (#1) Connect RS232-VGA cable (#4) (VGA side) to the TV 113／126...
  • Page 116 2.3 Connect USB cable (#5) to the board (#1) Connect another side of USB cable (#5) to PC 3. Cables Standard for Upgrade Board 114／126...
  • Page 117 115／126...
  • Page 118 116／126...
  • Page 119 117／126...
  • Page 120 Process of update MT5351AG Preparing : 1． Connect the Plasma/LCD TV and PC with the Software Upgrade Board.Please find the details for connecting refering to the appendix at the end of this file. 2． Store the MtkTool into the PC Downloading : 3．...
  • Page 121 6． Choose the bit rate as 115200. Select the update binary by pressing browse button. For example,the binary file name is 7． (this update firmware will be sent to your XXXX_PDP4210EA1_000000XX_X_P.bin. side) 119／126...
  • Page 122 8． Press Upgrade button and start update process. 9． The update process is successful as the progress bar is 100%. After the update process is ok, turn off power and wait indicator light is off. Turn on power and TV can work. Checking : It is needed to check the version of the firmware for MT5351AG which has been download into the Plasma TV .
  • Page 123 Appendix: Quick Installation Guide Software Upgrade Board 1. Parts List - Software upgrade board x 1 (#1) - RS232 null cable x 1 for PC (#2) - RS232 null cable x 1 for DTV (#3) - USB cable x 1 (#5) 2.
  • Page 124 2.2 Connect RS232 cable for DTV (#3) to the board (#1) Connect another side of RS232 cable for DTV (#3) to the TV 2.3 Connect USB cable (#5) to the board (#1) Connect another side of USB cable (#5) to PC 122／126...
  • Page 125 3. Cables Standard for Upgrade Board 123／126...
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