Hisense MSD6886 Service Manual
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Hisense MSD6886 Service Manual

Hisense MSD6886 Service Manual

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LCD Television

Service Manual

Chassis： MSD6886
Version: V 1.0
Hisense Electric Co.，Ltd.
December 5, 2018

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Summary of Contents for Hisense MSD6886

  • Page 1: Service Manual

    LCD Television Service Manual Chassis： MSD6886 Version: V 1.0 Hisense Electric Co.，Ltd. December 5, 2018...
  • Page 2 REVISION HISTORY Version Revise content Reviser Date V1.00 First issued 2018-12-5 - 2 -...

  • Page 3: Table Of Contents

    Contents Contents ..................................- 3 -  Service Manual ................................- 4 -  1. Precautions and notices ............................. - 4 -  1.1 Warning ..............................- 5 -  1.2 Notes ............................... - 7 -  2. TV boards: ..............................- 10 -  2.1 Main board layout ..........................- 10 -  2.2 TV boards part list ..........................

  • Page 4: Service Manual

    USE OF NON-AUTHORIZED PARTS WILL VOID THE MANUFACTURE'S WARRANTY Proper service and repair is important to the safe, reliable operation of all Hisense Equipment. The service procedures recommended by Hisense and described in this Service Guide are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose.

  • Page 5: Warning

    Ref. No. in the parts list. Use of non-manufacturer's recommended parts may create shock, fire, or other hazards. Under no circumstances should the original design be modified or altered without written permission from RCA. Hisense Eassumes no liability, express or implied, arising out of any unauthorized modification of design.
  • Page 6 1.1.4 When replacement parts are required, be sure to use replacement parts specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards and will void the manufacturer's warranty.

  • Page 7: Notes

    (3) If a foreign substance (such as water, metal, or liquid) gets inside the panel module, immediately turn off the power. Continuing to use the product may cause fire or electric shock. (4) If the product emits smoke, and abnormal smell, or makes an abnormal sound, immediately turn off the power.
  • Page 8 • At all times other than when adjusting and checking the product, be sure to turn OFF the POWER Button and disconnect the power cable from the power source of the TV during servicing. • To prevent electric shock and breakage of PC board, start the servicing work at least 30 seconds after the main power has been turned off.
  • Page 9 problems resulting from scratches on the parts, the deformation of parts, and short-circuits due to residual electric charge. • Perform a safety check when servicing is completed. Verify that the peripherals of the serviced points have not undergone any deterioration during servicing. Also verify that the screws, parts and cables removed for servicing purposes have all been returned to their proper locations in accordance with the original setup.

  • Page 10: Tv Boards

    2. TV boards: 2.1 Main board layout 2.1.1 The top of main board (RSAG7.820.8698/ROH) - 10 -...
  • Page 11 MSD6886 - 11 -...

  • Page 12: Wiring Diagram

    2.2 Wiring diagram ( example for HE55A7000EUWUTS): XP1： Power for main board jacket Main board terminal Power board terminal definition definition DIMMING2/DIM1 BL_ANA VCC_A/ VCCA1 VCC_A/ VCCA1 POWER ON/OFF/ STB1 12VS/ VCC3 - 12 -...
  • Page 13 12VS/ VCC3 BL_EN/SW1 DIMMING/PWM1 × 12VS/ VCC2 XP3:Localdimming jacket Electrical characteristics 脚位 illustration definition GND GND 2D_3D 2D/3D 切换 0V/3V LDC_VSYNC 场同步 3D_GLASS_VSYNC/PWM/Error 眼镜信号/PWM/报错 0V/3V LD_HSYNC/I2C_SCL 行同步/I2C 时钟 GND GND LDC_CLK SPI 时钟 LDC_DATA_O 主板->屏 LDC_DATA_I 屏->主板 LD_CS/I2C_SDA SPI 片选/I2C 数据 XP2：51pin VB1 jacket Panelterminaljacketdefinition Mainboardterminaljacketdefinition...
  • Page 14 Voltage Power Supply Input 12V-Panel Voltage Power Supply Input 12V-Panel Voltage Power Supply Input 12V-Panel Voltage Power Supply Input 12V-Panel Voltage No Connection NC PCB上× Ground R209上件0Ω Ground R207上件0Ω Ground R206上件0Ω Ground R205上件0Ω Ground R203上件0Ω No Connection R600,R612,R620 NC No Connection R602,R613,R621 NC No Connection R601,R982,R983 NC...
  • Page 15 RX2P VX1 lane 2 VRX2_P VGND Ground RX3N VX1 lane 3 VRX3_N RX3P VX1 lane 3 VRX3_P Ground RX4N VX1 lane 4 VRX4_N RX4P VX1 lane 4 VRX4_P Ground RX5N VX1 lane 5 VRX5_N RX5P VX1 lane 5 VRX5_P Ground RX6N VX1 lane 6 VRX6_N...

  • Page 16: Tv Boards Part List

    Before disassemble the TV ,besure to take photes for the TV assembly example for HE55A7000EUWUTS. 2.2 TV boards part list Main board Boards function difference For Series Main chassis type HE55A7000EUWTS 1. Lateral terminal and vertical terminal. MSD6886 55A6500EE RSAG7.820.8698\ROH 2. TCON part not on the board. - 16 -...

  • Page 17: Factory/Service Osd Menu And Adjustment

    3. Factory/Service OSD Menu and Adjustment 3.1 Remote Control - 17 -...

  • Page 18: How To Enter The Factory Osd Menu

    3.2 How to enter the Factory OSD Menu . With user’s RC 1. Power TV on 2. Press button on the RC then call up “Menu” option. 3. Move and “ok “button on RC to select Sound-> Speaker ->Advanced setting -> Balance 4.

  • Page 19: Factory Osd Menu

    3.3 Factory OSD Menu figure-1 - 19 -...
  • Page 20 Factory OSD menu list: if you want to learn more about TV, you’d better read it but would not adjust the value please. The Factory menu may be have difference for diverse market and customer. Take for example. HE55A7000EUWTS Options: Write keys: - 20 -...
  • Page 21 Note: Check whether the Key information under the current Version is OK, if appears “NG” or such as following red surround irregular information then need rewrite the key. - 21 -...
  • Page 22 Factory menu Description Remark White Balance data adjusting, different source has different WB values. Before adjusting, White Balance please change to desired source. channel init TV Produce signal preset, during the factory produce using. Option Items can choose Clear all initial the TV，EEPROM reset current software version information Soft version...
  • Page 23 Channel init huangdao old Qing Dao TV Produce signal preset, during the factory produce using. huangdao new …… - 23 -...
  • Page 24 ToFAC "M" used in factory product. Option "U" used in user state. LNB power 13/14;18/19;Power off Region North America country Country choose Logo Customer logo choose Language Language choose VCOM Panel voltage, UART On/off (when choose "on" then can serial port connect with Tool successfully) PQ COM On/off...

  • Page 25: Software Upgrading

    c. Close the OSD menu after 5 seconds. d. Restart the TV. e Also the Keys information must been checked, if appear “NG”, then must rewrite key code. 4. Software Upgrading 4.1 USB Upgrade Main software upgrade directly with USB The main software can be upgraded with USB disk.
  • Page 26 Firgure-1: Loading data Firgure-1 Firgure-2 : Upgrading software - 26 -...

  • Page 27: Mstar Tool Upgrading

    ID code 、 decipher& burn the Mboot program the EMMC flash first. then USB disk to upgrade the “ ”file. usb_HU55N3050UW.bin Hardware connecting Connect the unit to your pc with Hisense USB-serial port cable. USB port connects to your PC and earphone port to TV’s CN7(earphone hole). As following. USB Connect to the - 27 -...
  • Page 28 Earphone port Connect to the TV earphone hole (CN7) 4.2.1 Open the UART serial option UAR serial choose “on “ Menu: Factory-->Options–>UART–>on - 28 -...
  • Page 29 If finish the updating and data adjust UART serial, UART choose “off “ 4.2.2 Mstar USB-serial driver If First use Mstar bebug Tool, you have to install drive software for bebug board. If your PC is Windows XP system: First install FTCUNIN.EXE of FTC100103(MSTAR) rar file in your PC. This is a drive software of Mstar Another: If your PC is Win7 system, you will have to install CDM20802_Setup_WIN7 rar file，...
  • Page 30 Current steps: 1) Run SecureCRT.exe 2) TV power on. 3) SecureCR tool print information can appear or not. How to distribute the three status? 1) appearing “ ” that meaning is in Mboot status << MStar >># 2) Rolling many informmation automatically that meaning is in Supernova status; 3) No any print information that meaning the eMMC of board is no program.
  • Page 31 4.2.4 Mstar Tool upgrading Mstar Tool upgrading includes two states: one is TV board has had Mboot software,the other is TV board have no Mboot software. TV board has had Mboot software: If TV board has had mboot software already, now need update a new one. It is important to stop serial port at first.
  • Page 32 How to get the Device ID password? ● Connect the board with PC via to Hisense debug tool, With MSTVTool4.163 , run MSTV_Tool.exe ● Ensure “ ” button connected correctly, then click "Show DeviceID"button，you will get 12 bit device ID.
  • Page 33 Click” Run” Method 2 Store the Device ID When click "Show DeviceID"button，you can get 12 bit device ID. Next click “OK” button to copy; Open the “Password.txt” file in the same direction of “MSTV_Tool.exe”to stick the Device ID. Password .txt file - 33 -...
  • Page 34 ● Send the device ID to the IC developer ， MSTAR max-sc lv( 吕 思 成 )max-sc.lv@mstarsemi.com securitysecurity@mstarsemi.com Waiting for the feedback of ID password. Deciphering 3、 Receive the Device ID password ,copy it into the password.txt ,as following. password DeviceID Click “...
  • Page 35 Click “Help---Product Key”, enter “security” Click “Flash Update Mode” - 35 -...
  • Page 36 ” Now Deciphering has finished, Don’t restart the TV . 3) Burn the mboot software with ISP_Tool_5.0.2. Click “SPI” then click “ Connect”, drawing “ ” in front of “program /Exit ISP/Read file” - 36 -...
  • Page 37 Click“eMMC”then click “More>>”and load following four burning files. Respectively graphic as following: Click “X” button to close and save this setting. “I2C speed setting”choose around 30 ,roughly speed around 200KHz, roughly speed not high otherwise can cause updating abnormality. - 37 -...
  • Page 38 Return to “eMMC ”. Then click button to go on. Waiting for about 6 minutes, a green “Success to program” appears on the screen, indicating upgrading successfully. TV board have no mboot software: Run SecureCRT , AC power on the TV.if nothing appears on screen then can indicates that the TV no Mboot software, next close the SecureCRT window directly.
  • Page 39 Input lower-case letter “cu” then “enter” to update the main software. When main software update successfully, the TV can automatically restart.enter the Factory OSD Menu to check the main software version, and then choose “option”“Clear All” to do clean up. 4.2.6 Next to check the Key information under the current Version whether is OK ,if must rewrite key code.
  • Page 40 3、ISP_Tool connected failure  Close the SecureCRT, check whether “ ” in front of “UseSWI2C” of “Config” . 4、 ISP_Tool connected appear error “ Device not selected,yet”;  Reduce the I2C speed setting figure lower “Roughly speed” about “200KHz” and have a try. 5、After USB upgrade, appear “...

  • Page 41: Trouble Shooting

    5. Trouble shooting 5.1 Troubleshooting for Remote Control Remote control does not work Try new batteries Replace battery Replace RC Replace remote control Check IR receiver Change Led & IR board Replace Led & IR BD Change Led & IR cable Replace Led &...

  • Page 42: Troubleshooting For Function Key

    5.2 Troubleshooting for Function Key Buttons does not work Check solder connections and see if Check switches it h Replace Key BD Check key board Check Key BD cable Change Replace main board - 42 -...

  • Page 43: Tv Won't Power On

    Work Replace Main Replace Main BD Power on Replace Panel (to contact Hisense tech support.) Replace Power BD Notice: MSD6586 Europe market： TV work normally indication led is no light. TV standby indication led is red. - 43 -...

  • Page 44: Troubleshooting For Audio

    5.4 Troubleshooting for Audio No sound Reconnect Check connecter Replace speaker wire Check speaker wire Replace speaker set Check speaker set Replace main board Power Supply Board - 44 -...

  • Page 45: Troubleshooting For Tv/Vga/Hdmi Input

    5.5 Troubleshooting for TV/VGA/HDMI input No picture on the screen Check Signal Source Make sure signal source is available Reconnect Check connect Replace cable Check cable Replace main board - 45 -...

  • Page 46: Troubleshooting For Ypbpr Input

    5.6 Troubleshooting for YPbPr input No picture on the screen Check Source work or not Check Source Device Reconnect Check connect Check Wires (Green Blue, Red) Replace wires Replace main board - 46 -...

  • Page 47: Troubleshooting For Video Input

    5.7 Troubleshooting for Video input No picture on the screen Check Source work or not Check Signal Source Reconnect Check connect Replace Cable/Wires Check Cable/ Wires Replace main board - 47 -...
  • Page 48 PowerTree 电流 有效值/峰峰值 DC/DC VCC_A NTP8824 2*15W VCC_A 6.5/5.3A 12VS 3000mA 12V_Panel 12VS 3000mA AO4459 PANEL_ON/OFF 3500mA VDDC Digital Core Power 120mA DVDD_DDR DDR Core Power +0.95V_VDDC 200mA DC/DC 4045mA AVDDL_HDMI MOD Core Power TPS56628DDAR PWR-ON/OFF 225mA AVDDL_MOD MOD Core Power +0.95V_VDDC_CPU VDDC_CPU CPU Power DC/DC...

  • Page 49: Block Diagram

    Block Diagram Linux:4GB Android:8GB DDR3#1 DDR3#2 eMMC CVBS IN 4Gb DDR built-in Audio in HDMI2.0 (ARC) SPDIF HDMI2.0 NTP8824 Speaker MSD6886 HDMI2.0 Headphone HDMI2.0 4K Panel USB2.0 Debug USB2.0 Title Title Title MSD6886NQH MSD6886NQH MSD6886NQH Size Size Size Document Number...
  • Page 50 BOM默认上R9 按照PWM调光设计 +5V_Standby Main power connector Power on/off Backlight control +5V_Normal R8、R500 作为模拟调光预留 R15、R11作为调整电压大小预留 与公版极性相反，需软件配置 R500 1k/NC +3.3V_Normal +5V_Standby +3.3V_Standby POWER ON/OFF DIMMING 4.7k DIMMING 4.7k 1k/NC DIMMING2 PANEL_ON/OFF 100R/NC MMBT3904LT1 (5,9) PANEL_ON/OFF 4.7k PW R-ON/OFF BRI_ADJ PW R-ON/OFF BRI_ADJ MMBT3904LT1 MMBT3904LT1 4.7k...
  • Page 51 HDMI/Audio Block PCMCIA/TS/NAND/FE Close to MST IC DIFP DIFP DIFM with width DIFM IFAGC-T trace IF_AGC 12 AUVAG IP_T AH11 EMMC-D0 HDMI1-RX0N EMMC-D0 A_RX0N EMMC_IO0/EMMC_D0 IM_T EMMC-D1 AK11 HDMI1-RX0P EMMC-D1 A_RX0P 100n/16V EMMC_IO1/EMMC_D1 IFAGC_T C69 2.2u/10VV EMMC-D2 AH12 10u/16V HDMI1-RX1N AV_AUL EMMC-D2 A_RX1N...
  • Page 52 CORE Power Standby Power 3.3V AA17 AB17 +0.95V_VDDC VDDC +3.3V_Standby +3.3V_Standby +3.3V_Standby AVDD_DMPLL AVDD_DADC AD17 3.7A , 100mil 10mA,15mil 20mA,15mil BLM15PX121SN1D C100 C101 C103 C104 C102 10u/6.3V 100n/16V 100n/16V 100n/16V 10u/6.3V 10u/6.3V 10u/6.3V 100n/16V 100n/16V 100n/16V 100n/16V 100n/16V AA13 VDDC_CPU VDDC_CPU AB13 VDDC_CPU...
  • Page 53 公版DDR A14、A15均NC，Hisense 只有A15 NC BA2,CSB1,CSB2 need GND shielding DDR3 4Gb+4Gb 2133MHz AVDD_DRAM DDR3#1 DDR3#2 R438 D_DDR3_WEZ D_DDR3_DQ0 D_DDR3_A0 D_DDR3_DQ16 D_DDR3_A0_H D_DDR3_A15 D_DDR3_DQ1 D_DDR3_A1 D_DDR3_DQ17 D_DDR3_A1_H B-RSTZ D_DDR3_A0 D_DDR3_DQ2 D_DDR3_A2 D_DDR3_DQ18 D_DDR3_A2_H A-RST D_DDR3_RASZ D_DDR3_DQ3 D_DDR3_A3 D_DDR3_DQ19 D_DDR3_A3_H RASZ C139 D_DDR3_CASZ...
  • Page 54 EMMC_VIO EMMC EMMC_VIO R104 保证CLK走线包地且均匀打孔 for SS 8Gb EMMC THGBMNG5D1LBAIL NAND-CEZ R105 NAND-CEZ VDD_0 NAND-REZ R109 NAND-REZ VDD_1 VDD_2 EMMC-D0 DAT0 R110 EMMC-D0 DAT0 VDD_3 +3.3V_EMMC EMMC-D1 DAT1 R111 EMMC-D1 DAT1 VDD_4 EMMC-D2 DAT2 R112 EMMC-D2 DAT2 EMMC-D3 DAT3 R106 EMMC-D3 DAT3 VDDF_0...
  • Page 55 12VS-->12V-Panel VB1 Connector 12VS 12V-Panel D1_8 VBY7P LVSYNC LDC_STT LVSYNC 5 LDC_STT C159 D1_7 C158 R120 C156 VBY7N LHSYNC LDC_CLK D2_6 LHSYNC 5 LDC_CLK LDC_DATA_O LDC_DATA_O 5 10u/25V 2.2u/25V D2_5 100n/25V VBY6P LDC_DATA_I LDC_DATA_I 5 AO4459 R121 VBY6N LDC_VSYNC LDC_VSYNC 5 2k/NC DIMMING Vin = 20V...
  • Page 56 AV + AV Audio Input C191 C192 5p/50V/NC 5p/50V/NC MDI_TP MDI_TP TD1+ TX1+ CMT1 Close to CONNECTOR MDI_TN MDI_TN TD1- TX2- AV_IN 5 R214 R215 MDI_RP C194 RD2+ RX2+ MDI_RP C193 R216 CMT2 47p/50V MDI_RN MDI_RN RD2- RX2- R217 1n/2000V R218 左...
  • Page 57 HDMI1-5V HDMI1(ARC) HDMI1-DDC-SCL HDMI1_RX2P HDMI1_RX2P HDMI1-DDC-SDA HDMI1_RX2P HDMI1_RX2N HDMI1_RX2N DATA2+_0 靠近端子放置 DATA2S HDMI1_RX2N DATA2-_2 HDMI1_RX1P HDMI1_RX2P HDMI1-RX2P R227 HDMI1-RX2P 5 DATA1+_3 HDMI1_RX2N HDMI1-RX2N HDMI1_RX1P HDMI1_RX1P R228 HDMI1-RX2N 5 DATA1S HDMI1_RX1N HDMI1_RX1P HDMI1-RX1P R229 HDMI1-RX1P 5 DATA1-_5 HDMI1_RX0P HDMI1_RX1N R230 HDMI1-RX1N HDMI1_RX1N HDMI1_RX1N HDMI1-RX1N 5...
  • Page 58 Tuner On Board for ATSC /DVB-T2/T/C/ SA Air 每个tuner预留14mm宽度,28.8mm长度范围内 Tuner On Board for SA Cable +3.3V_TU +3.3V_Tuner +3.3V_Tuner_ISDB +3.3V_Tuner EM/US/SA BLM18PG121SN1 FG053-F01T1NY-A\Reflow AJ063-F01T1NY-A\Reflow C481 C482 BLM18PG121SN1 +3.3V_Tuner EM/US/SA EM/US/SA RF002-F02L1WY-B\reflow 10u/10V 100n/16V +3.3V_Tuner_ISDB C454 EM/US/SA EM/US/SA 0.27 uH 1n/50V C470 1n/50V 0.27 uH EM/US/SA...
  • Page 59 12VS-->5V_USB USB POWER 1500mA 12VS 5V_USB 4.7 uH C260 Idc2=4.2A R326 C264 100n/16V 5V_USB 5V_USB1 5V_USB2 121k 47p/50V R327 SY8113BADC R329 R328 C268 27k/NC 100n/16V PWR-ON/OFF Vin=4.5～18V Iout=3A Vref=0.6V Freq=500KHz Vout=0.6*(1+R1/R2)=5.13V 5V_USB1 5V_OTG USB PORT 1 USB PORT 2(OTG) 靠近端子放置 靠近端子放置...
  • Page 60 PCMCIA TS0_D[7:0] TS0_D[7:0] 5 PCM_A[14:0] PCM_A[14:0] 5 TS0_D0 PCM_D[7:0] TS0_D1 Parrel TS interface PCM_D[7:0] PCMCIA\111410271 TS0_D2 XS12 EU/EM TS0_D3 INCLK_CI D0_CI TS1_VLD R340 INVALID_CI TS0_D4 EU/EM MCLKI_A15__19 INVALID_CI D1_CI TS1_SYNC INSYNC_CI TS0_D5 R341 EU/EM MIVAL_A16__18 INSYNC_CI D2_CI TS1_D0 INDATA0_CI TS0_D6 R342 EU/EM MISTRT_A17__45...
  • Page 61 AMP Power Headphone +3.3V_Normal VCC_A VCC_AMP VCC_AMP R421 BLM18PG121SN1 4.7k XS13 HP_ROUT C324 22u/6.3VV EARPHONE_OUTR HP_ROUT HP_LOUT EARPHONE_OUTR R423 BLM18PG121SN1 HP_DET C430 C439 C431 C432 HP_DET C325 22u/6.3VV EARPHONE_OUTL HP_LOUT 100R EARPHONE_OUTL 与公版相反，需软件配置 R428 R429 HP_DET 立式端子 L :DETECT H :Normal 靠近功放...

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