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Hisense LCD42P69P manual

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Table of contents for the manual

  • Page 1

    LCD Television Service Manual Chassis ： MTK8222 Product Type ： LCD42P69P 、 LCD47P69P Ver 1.0 Hisense Electric Co. ， Ltd. Mar ch ， 2009[...]

  • Page 2

    - 2 - LCD TV Service Manual Hisense Confidential Contents Contents ............................................................................................................................... ........................................ - 2 - Service Manual .............................................................................................[...]

  • Page 3

    - 3 - LCD TV Service Manual Hisense Confidential Service Manual 1. Pr ecautions and notices BEFORE SERVICING THE LCD TV, RE AD THE SAFETY PRECAUTIONS IN THIS MANUAL. WHEN REPLACEMENT PARTS ARE REQUIRED, BE SURE TO USE REPLACEMENT PARTS SPECIFIE D BY THE MANUFACTURER. Proper service and repair is important to the safe, reliable operation of all Hise[...]

  • Page 4

    - 4 - LCD TV Service Manual Hisense Confidential which are not recommended by Hisense, must first satisfy him self thoroughly that neither his safety nor the safe of the e quipment will be jeopardized by the service method selected. Hereafter throughout this manual, Hisense Electric Co., Ltd will be referred to as Hisense. 1.1 W arning 1.1.1 Critic[...]

  • Page 5

    - 5 - LCD TV Service Manual Hisense Confidential that you are connected with the same potential as the mass of the set by a wristband with resistance. Keep components and tool s also at this same potential. 1. Never replace modules or other co mponents while the unit is switched on. 2. When making settings, use plastic rather than metal tools. This[...]

  • Page 6

    - 6 - LCD TV Service Manual Hisense Confidential touch EMI ground part and H eat Sink of Film Filter. (2) Do not supply a voltage higher than that specified to this product. This may damage the product and may cause a fire. (3) Do not use this product in locations where the humidity is extremely high, where it may be splashed with water, or where f[...]

  • Page 7

    - 7 - LCD TV Service Manual Hisense Confidential otherwise, this can lead to fire or electric shock. (10) If the power connector or the connector of the power cable becomes dirty or dusty, wipe it with a dry cloth. Otherwise, this can lead to fire. (11) Use only with the cart, stand, tr ipod, bracket, or table specified by the manufacturer, or sold[...]

  • Page 8

    - 8 - LCD TV Service Manual Hisense Confidential equipment and the high voltage power supply bl ock, it can result in electric shock or activation of the leakage-detection circuit breaker. • When installing the LCD module in, and re moving it from the packing carton, be sure to have at least two persons perform the work. • When the surface of t[...]

  • Page 9

    - 9 - LCD TV Service Manual Hisense Confidential that they are not damaged and their materials do not deteriorate over long periods of time. Therefore, route the cables and fix the cables to the original position and states using the wire clamps. • Perform a safety check when servicing is completed. Verify that the peripherals of the serviced poi[...]

  • Page 10

    - 10 - LCD TV Service Manual Hisense Confidential 2. Pr oduct Function Specifications 2.1 Pr oduct Function Front Cabinet[...]

  • Page 11

    - 1 1 - LCD TV Service Manual Hisense Confidential Back Cabinet[...]

  • Page 12

    - 12 - LCD TV Service Manual Hisense Confidential 2.2 Specifications NOTE: Specifications and design are subject to possible modification s without notice Due to impr ovements 。[...]

  • Page 13

    - 13 - LCD TV Service Manual Hisense Confidential 3. LCD Panel Spec LCD42P69P Panel ： LC420WUN-SBD1 ROH SN ： 1056497 3.1General Description 3.2 General Features[...]

  • Page 14

    - 14 - LCD TV Service Manual Hisense Confidential LCD47P69P Panel ： LC470WUN-SBC1ROH SN ： 1056802 3.1General Description[...]

  • Page 15

    - 15 - LCD TV Service Manual Hisense Confidential 3.2 General Features[...]

  • Page 16

    - 16 - LCD TV Service Manual Hisense Confidential 4. Chassis Layout and O verall Wiring Diagrams Boards and Chassis Layout LCD42P69P ： No Description Part No. Type/Model PCB/ Model (1) Main board 1 1 8963 RSAG2.908.1497ROH RSA G7.820.1637VER.DRO H (2) Power board 1 169 47 RSAG2.908.1 192-7ROH RSAG7.820. 1 185VER.DRO H (3) Keypad PCA 1 1 335[...]

  • Page 17

    - 17 - LCD TV Service Manual Hisense Confidential 5. Factory/Servi ce OSD Menu and Adjustment 5.1 T o enter the Factory OSD Menu a. W ith factory RC (remote control) 1. Press “M” button and enter factory mode. 2. Press “Menu” button and enter factory OSD menu. 3. Press “CH+”/“CH-” button select the function menu, press “VOL+”/?[...]

  • Page 18

    - 18 - LCD TV Service Manual Hisense Confidential e、Close the O SD menu aft er 5 second s. 5.2.2 Factory Option Item 0 Item 1 Note White Balance R DR V Red Driver adjust G DR V Green Driver adjust B DR V Blue Driver adjust R CUT Red Cut adjust G CUT Green Cut adjust B CUT Blue Cut adjust Note: Befor e adjusting, please change to desi r ed source.[...]

  • Page 19

    - 19 - LCD TV Service Manual Hisense Confidential Scart Y es or No MODE “M” is only used for factory pr oduction. V ersion Info Ve r s i o n： Current Software version Date ： The date of current version Note: Software version info of the TV , readable only . Clean Protected Clean data except WB data and Auto Color d ata Clean All Clean all d[...]

  • Page 20

    - 20 - LCD TV Service Manual Hisense Confidential Audio out power before adjusting V olume 25 When value is 25 Think about the Audio out power before adjusting V olume Mid When value is 50 Think about the Audio out power before adjusting V olume 75 When value is 75 Think about the Audio out power before adjusting V olume Max When value is 100 Think[...]

  • Page 21

    - 21 - LCD TV Service Manual Hisense Confidential 6 Softwar e Upgrading The first upgrading method: The software is upgraded by a burning toll-MtkT ool , which can burn the program file *.bin to the main board of the unit. 6.1 Get r eady for upgradi ng 6.1.1 Install the driver Double click the icon MTKtools2.44.04+cp210xDriver.rar , install the dri[...]

  • Page 22

    - 22 - LCD TV Service Manual Hisense Confidential For the first connecting, the pc will recogniz e and automatically install the USB device. The process is just like the installation of a m ini disk, see the following picture.[...]

  • Page 23

    - 23 - LCD TV Service Manual Hisense Confidential 6.2 Upgrading with the MtkT ool MTKtool is a green program needing no insta llation. It is saved in the folder . There are five folders/file s in this folder altergether. The MtkTool using log is restored in the Mtk Log folder. It records the running time and date whenever the tool is used. The log [...]

  • Page 24

    - 24 - LCD TV Service Manual Hisense Confidential 2—Refer to the next page instruc tion to select the communicate port. 3—Press the icon beside the baud rate and make sure it is green as the below p icture. 4—Set the flash baud rate to 1 15200 as the below picture. 5—Click the browse button to select the *.bin file that will b e updated. 6?[...]

  • Page 25

    - 25 - LCD TV Service Manual Hisense Confidential Open “Device Manager” and find which port is connected with the TV . In this operation, COM5 is connected to the TV ; so, select “COM5” in the MtkT ool m ain interface. Select the right baud rate according to chip model. For this unit( chip m odel is MT8226), select 1 15200..So choose “Aut[...]

  • Page 26

    - 26 - LCD TV Service Manual Hisense Confidential Click “Browse” button, find the upgradi ng program file, and select it. Press “Upgrade” button and start upgrading. The following interface appears on th e screen, indicating upgrading successfully .[...]

  • Page 27

    - 27 - LCD TV Service Manual Hisense Confidential 6.3 Update with USB dir ectly T he second update method is with USB dir ectly: MTK8222 Series can update with USB, the so ftwar e name should be HISENSE.bin. The Updating S teps is set the Source to "DMP interface", insert the USB(the update file HISENSE.bin,which should be in r oot dir ec[...]

  • Page 28

    - 28 - LCD TV Service Manual Hisense Confidential After upgrading, you must confirm the software in the Factory Menu and you'd better "CLEAR UNPROTECTL Y".[...]

  • Page 29

    - 29 - LCD TV Service Manual Hisense Confidential 7. T roubleshootin g 7.1 T r oubleshooting for Remote Control Remote control does not work T ry new batteries Replace RC Check IR receiver Change Led & IR board Change Led & IR cable Replace main board Replace battery Replace remote control Replace Led & IR BD Replace Led & IR cable [...]

  • Page 30

    - 30 - LCD TV Service Manual Hisense Confidential 7.2 T r oubleshooting for Function Key Buttons does not work Check switches Check key board Check Key BD cable Change Key BD Replace main board Replace tact switch Replace Key BD OK YES YES NO YES NO NO[...]

  • Page 31

    - 31 - LCD TV Service Manual Hisense Confidential 7.3 TV won’t Power On Make Sure Power source is live Replace Power Cord Check/replace IR BD or Keypad PCA TV won’ t power on Is LED light? NO YES Check Power Inlet YES NO Check Power Cord Only one works Replace Main BD T ry Power on by RC and Button Neither works Both Wo r k Power on OK YES NO R[...]

  • Page 32

    - 32 - LCD TV Service Manual Hisense Confidential 7.4 T roubleshooti ng for Audio No sound Check connecter Check speaker wire Replace main board Reconnect Replace speaker wire YES YES NO NO Check speaker set Replace speaker set YES NO OK YES NO Replace PSU[...]

  • Page 33

    - 33 - LCD TV Service Manual Hisense Confidential 7.5 T roubleshooting for TV/VGA/HDMI input No pi ctu re on th e sc reen Check Si gna l Sou rce Ch eck con nect Ch eck cab le Replace main boar d Make sure signal source is available Reco nn ect Repl ace cabl e NO YES YES NO NO[...]

  • Page 34

    - 34 - LCD TV Service Manual Hisense Confidential 7.6 T r oubleshooting for YPbPr input No pi ctu re on th e sc reen Chec k Source wo rk or no t Ch eck con nect Check W ires (Green B lue, Red) Replace main boar d Chec k Source Device Reco nn ect Replace wire s NO YES YES NO YES NO[...]

  • Page 35

    - 35 - LCD TV Service Manual Hisense Confidential 7.7 T roubleshooti ng for V i deo/S-V i deo input No pi ctu re on th e sc r een Chec k Source wo rk or no t Ch eck con nect Ch eck C able/ W i res Replace main boar d Check Si gna l Sou rce Reco nn ect Replace Cable/W ires NO YES YES NO YES NO[...]

  • Page 36

    - 36 - LCD TV Service Manual Hisense Confidential 8. Explode V iew 9. Schematic cir cuit diagram[...]

  • Page 37

    [...]

  • Page 38

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A OFF_MUTE +3V3 12V_M SCT2_AUR_OUT SCT2_AUL_OUT GND HPOUTL1 HPOUTL1 GPIO_11 A_MUTE DAC_AUR_OUT DAC_AUL_OUT A_MUTE GPIO_11 HPOUTL1 HPOUTR1 AOMCLK AOLRCK AOBCK AOSDATA0 5V_M AOMCLK AOBCK AOLRCK AOSDATA0 HPOUTR DAC_AUL_OUT DAC_AUR_OUT HPDET# DAC_AUL_OUT DAC_AUR_OUT HPOUTL HPOUTR SCT1_AUR_OUT SCT1_AUL_OUT DAC_AUR_OUT D[...]

  • Page 39

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A Title Size Document Number Rev Date: Sheet of MediaTek (ShenZhen) Inc. Drawn: 1 C 11 4 MediaTek Confidential Title Size Document Number Rev Date: Sheet of MediaTek (ShenZhen) Inc. Drawn: 1 C 11 4 MediaTek Confidential Title Size Document Number Rev Date: Sheet of MediaTek (ShenZhen) Inc. Drawn: 1 C 11 4 MediaTek [...]

  • Page 40

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A GND +3V3 AV12 DDRV +5V_TUNER DV10 +5V_ON 12V_M 5V_M SW UP31 BL-ON/OFF BL-ADJUST SW BL-ON/OFF BL-ADJUST UP31 PW_CTL1 PW_CTL1 DDRV +5V_ON DV10 5V_M +5V_TUNER +3V3 AV12 12V_M +5V_ON +3V3 AV12 DDRV +5V_TUNER DV10 12V_M 5V_M 12V_M +5VS 5V_M +5VS 12V_M +5VS 5V_M 12V_M VPA +3V3 +5V_ON VPA 12V_M 5V_M +5V_ON 5V_M +5VS +5V[...]

  • Page 41

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A OFF_MUTE AUD_VMID XTALI XTALO AL1 AR1 USBVRT DV10 CVBS7 UP35 U0TX U0RX U1TX U1RX AV12_LVDSPLL GPIO_7 GPIO_7 VGAHSYNC# VGAVSYNC# AV33_HDMI MPX2_P MPX2_N ORESET# GPIO_8 AV33_CVBS CVBS0P DV33 CVBS0N RDQ1 AV33_ADCREF U0TX U0RX OIRI PWM0 UP35 UP33 UP34 DV10 OIRI OSCL0 OSDA0 ORESET# AOMCLK RX1_CB RX1_C RX1_1B RX1_1 RX1[...]

  • Page 42

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A AV33_XTL AV12 DV10 AV12_PLL AV12_MEMPLL AV12_LVDS AV33_HDMI AV33_LVDS AV33_CVBS AV33_ADC AV12_USB AV12_HDMI AV33_SIF DV33 AV33_VGA AV33_USB +3V3 AV33_DAC DDRV GND AV12_LVDSPLL AV12D_RGB AV33_SIFDIG AV33_ADCREF AV12A_RGBB AV33_SIF +3V3 AV33_XTL AV12_PLL AV12 AV33_LVDS +3V3 DDRV DV10 +3V3 AV12_USB AV12_HDMI AV33_XT[...]

  • Page 43

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A MEM_ADDR6 MEM_ADDR5 MEM_ADDR4 MEM_DQ0 MEM_VREF MEM_DQ15 MEM_DQ1 MEM_DQ14 MEM_DQ2 MEM_DQ3 MEM_DQ4 MEM_DQ5 MEM_DQ6 MEM_DQ7 MEM_DQS0 MEM_WE# MEM_DQM0 MEM_CAS# MEM_CS# MEM_RAS# MEM_BA0 MEM_BA1 MEM_ADDR10 MEM_ADDR0 MEM_ADDR1 MEM_ADDR2 MEM_ADDR3 MEM_DQ13 MEM_DQ12 MEM_DQ11 MEM_DQ10 MEM_DQ9 MEM_DQ8 MEM_DQS1 MEM_DQM1 MEM_[...]

  • Page 44

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A OSCL0 OSDA0 ORESET# FRESET# PWM2 AOSDATA0 PWM2 ORESET# OIRI U0TX U0RX U1TX U1RX U1TX U1RX U0TX U0RX USB_DM0 USB_DP0 USB_DM1 USB_DP1 GPIO_7 GPIO_8 GPIO_9 GPIO_10 +3V3 FCIDAT3 FCICLK FCICMD FCIDAT0 FCIDAT1 GPIO_2 GPIO_3 GPIO_5 GPIO_6 GPIO_7 GPIO_8 GPIO_9 GPIO_10 SD_WP FCIDET FCIDAT2 +5V_ON ICE AOSDATA0 GPIO_2 GPIO_[...]

  • Page 45

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A CECA HDMICAB0 RX0_CB RX0_C RX0_1B RX0_1 RX0_2B RX0_2 RX0_0B RX0_0 UP33 OPWR0_5V CECA HDMICAB1 RX1_CB RX1_C RX1_1B RX1_1 RX1_2B RX1_2 RX1_0B RX1_0 UP30 OPWR1_5V CECA CECA CEC HDMIDDCSCL_2 HDMIDDCSDA_2 CECA HDMICAB2 RX2_CB RX2_C RX2_1B RX2_1 RX2_2B RX2_2 RX2_0B RX2_0 UP35 CECA OPWR2_5V HDMIDDCSCL_1 HDMIDDCSDA_1 HDM[...]

  • Page 46

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A CVBS3 AV1_IN AV1 SY1 CVBS1 SC1 CVBS2 CVBS4 HSYNC# VSYNC# VGAL_IN VGAL_IN VGAL_IN VGAL_IN VGA_PLUGPWR VGASOG VGAGND RED_GND REDP VGASDA_IN RED_GND RED+ VGASCL_IN GRN_GND BLUE GREEN RED VSYNC# HSYNC# BLU_GND BLUE GRNP GRN_GND BLUP BLU+ RED GRN+ GREEN VGASCL_IN VGASDA_IN CVBS4 CVBS3 CVBS1 CVBS2 VGASOG VGAGND REDP GR[...]

  • Page 47

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A YPBPR1_GND SOY1 PR1P Y1P PB1P Y2_R Y2_L GND PB1_IN PR1_IN YPBPR1_GND Y1_A Y1_IN Y1_IN_GND Y1_IN PB1_IN PR1_IN SOY1 PB1_A PR1_A PBR1_IN_GND PR1P Y1P PB1P Y0_IN_GND GND PB0_IN SCT1_B SCT1_G PR0P Y0P PB0P YPBPR0_GND Y0_IN PBR0_IN_GND SOY0 YPBPR0_GND SOY0 PR0P Y0P PB0P SCT1_R +5V_ON PR0_IN YPBPR1_AUR_IN SCT1_AUR_IN S[...]

  • Page 48

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A SCT1_AUR_OUT SCT1_AV_OUT SCT1_AVO_GND ADIN3 SCT1_AUR_IN SCT1_AUL_IN CVBS5 ADIN4 SCT2_FS_IN SCT2_AV_OUT SCT2_AV_IN SCT2_R_GND SCT2_AUL_IN SCT2_AUR_IN SCT2_AUL_OUT SCT2_AUR_OUT SCT2_GB_GND SCT2_AVI_GND SCT2_GB_GND SCT1_FS_IN SCT1_AV_OUT SCT1_AV_IN SCT1_R_GND SCT1_FB_IN SCT1_B_IN PR0_IN SCT1_G_IN PB0_IN SCT1_AUR_OUT[...]

  • Page 49

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A OSDA0 OSCL0 SCL_V50 MPX2_P MPX2_P MPX1 SDA_V50 CVBS0P CVBS0N +5V_TUNER MPX2_N MPX2_N GND OSCL0 OSDA0 TUNER_CVBS TU_CVBS_GND TV1-V +5V_TUNER SCL_V50 SDA_V50 TV_SIF TV_AUDIO 12V_M PWM1 IF_TUNER SCL_V50 SDA_V50 TV1-V TV_SIF IF_AGC TV IF_TUNER IF_TUNER IF_TUNER IF_TUNER IF_TUNER TV_AUDIO PWM1 TU_33V TU_33V TUNER_CVBS[...]

  • Page 50

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A GND INT PWM3 AUD_L AUD_R 5V_M MUX_CTLA MUX_CTLB PWM3 INT AUD_LOUT AUD_ROUT AUD_L AUD_R SPDIFOUT MUX_CTLC MUX_CTLD GPIO_20 AU_MUX AOMCLK AOBCK AOMCLK AOLRCK AOBCK AOSDATA0 GPIO_20 SPDIFIN SPDIFIN AOLRCK AOSDATA0 SPDIFOUT AV2_L AV2_R MUX_CTLB AV1_R AV1_L MUX1-R MUX1-L Y1_L Y2_R Y2_L Y1_R MUX_CTLA MUX_CTLC VGA_L VGA[...]

  • Page 51

    5 5 4 4 3 3 2 2 1 1 D D C C B B A A E4P E4N E3P E3N ECKP ECKN E2P E2N E1P E1N E0P E0N O4P O4N O3P O3N OCKP OCKN O2P O2N O1P O1N O0P O0N GPIO_4 5V_M GND 12V_M UP34 PWM0 +3V3 GPIO_21 DAC_AUR_OUT DAC_AUL_OUT A_MUTE +5V_ON LVDSVDD GPIO_4 BL-ADJUST PWM0 BL-ON/OFF BL-ON/OFF UP34 UP34 UP34 UP34 BL-ADJUST BL-ADJUST BL-ADJUST BL-ADJUST BL-ADJUST BL-ADJUST A[...]