Hisense LTDN50K680XWAM3D Service Manual
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Hisense LTDN50K680XWAM3D Service Manual

Hisense LTDN50K680XWAM3D Service Manual

Chassis: mtk5652+mst6m4
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LCD Television
Service Manual
Chassis：
MTK5652+MST6M40
Product:
LTDN50K680XWAM3D
Ver 1.0
August，2015

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Summary of Contents for Hisense LTDN50K680XWAM3D

  • Page 1 LCD Television Service Manual Chassis： MTK5652+MST6M40 Product: LTDN50K680XWAM3D Ver 1.0 August，2015...

  • Page 2: Table Of Contents

    Contents Contents ..................................- 2 -  Service Manual ................................- 3 -  1. Precautions and notices ............................. - 3 -  1.1 Warning ..............................- 4 -  1.2 Notes ............................... - 7 -  2. Product Function ............................... - 9 -  2.1 TV Front and Rear ..........................- 9 -  2.2 Specification ............................

  • Page 3: 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 4: 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. Servicetech assumes all liability.
  • Page 5 IMPORTANT: Always disconnect the power cord from AC outlet before replacing parts or modules. 1.1.3 To prevent electrical shock, use only a properly grounded 3 prong outlet or extension cord. 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.
  • Page 6 damage the product and may cause a fire. (2) Do not use this product: > High humidity areas > In an area where any water could enter or splash into the unit. High humidity and water could damage the product and cause fire. (3) If a foreign substance (such as water, metal, or liquid) gets inside the panel module, immediately turn off the power.

  • Page 7: Notes

    1.2 Notes Notes on Safe Handling of the LCD panel and during service The work procedures shown with the Note indication are important for ensuring the safety of the product and the servicing work. Be sure to follow these instructions. •...
  • Page 8 observe this precaution may result in, the surface of the panel being scratched by foreign matter. • Be sure to handle the circuit board by holding the large parts as the heat sink or transformer. Failure to observe this precaution may result in the occurrence of an abnormality in the soldered areas.

  • Page 9: Product Function

    2. Product Function 2.1 TV Front and Rear TV Front LTDN50K680XWAM3D TV Rear: - 9 -...

  • Page 11: Specification

    2.2 Specification - 11 -...

  • Page 12: Main Board Layout

    2.3 Main board layout Main board layou t (6050) The board is designed for UD（3840*2160） - 12 -...
  • Page 13 Power board layou t (4903) 待机部分 部分 PFC 部分 EMC 部分 - 13 -...

  • Page 14: Tv Basic Parts

    2.4 TV basic parts LVDS cable (main board- Hisense Model Main & Power board chassis Panel panel) MB:RSAG2.908.6050-05\ROH V500DK2-K HX2-2X25KLB500-LG-1\ROH 、 MT5652N LTDN50K680XWAM3D （VB1 线 51Pin S1\JK\ROH PB:RSAG2.908.4903-07\ROH HOI+MS T6M40 3. Factory/Service OSD Menu and Adjustment 3.1 To enter the Factory OSD Menu With user’s RC...
  • Page 15 3.2.1 White Balance Note: Different source has different WB values. Before adjusting, please change to desired source. 3.2.2 Signal prefabricate - 15 -...
  • Page 16 3.2.3 Factory Option - 16 -...

  • Page 17: Designer Menu

    Item Default Options Notes M-Can enter factory mode with factory RC or user RC. MODE M, U U-Can enter factory mode only with user’s RC. Note: MODE “M” is only used for factory production. Item Default Options Note Software version Version The date of current Date...
  • Page 18 Note: The above “Factory/Service OSD Menu”is reference for chassis MTK5652 , please refer to - 18 -...

  • Page 19: Software Upgrading

    the actual units to determine the appearances for different TV. 4. Software Upgrading 4.1 USB Software Upgrading directly The software can be upgraded by USB Disk.  First, copy the upgrade_loader.pkg file to USB Disk;.  Second, make sure there is no other .pkg file in the root directory of USB Disk. ...
  • Page 20 USB Connect to the PC Connect the TV RS232 port 4.2.1 Install the driver Double click the icon , install the driver. Select the default value, the driver will be installed step by step. - 20 -...
  • Page 21 - 21 -...

  • Page 22: Upgrading With The Flashtool0.6.0.Exe

    4.3 Upgrading with the FlashTool0.6.0.exe 1、 FlashTool is a green program needing no installation. After Connect the unit to your pc with a USB-to-serial port cable，run FlashTool0.6.0.exe. Please refer to the following steps to set. serial port Select mode Communicate port Set Flash Baud Rate of main chip - 22 -...
  • Page 23 Communicate port and flash baud rate? See the following How to choose instruction..   - 23 -...
  • Page 24 Open “Device Manager” and find which port is connected with the TV. In above picture, COM4 is connected to the TV, so, select “COM4” and if COM6 is connected to the TV, so select “COM6”. Select the right baud rate according to chip model. For this unit( chip model is MT5652), select 115200. 2、 ...

  • Page 25: Network Updating

    Start upgrade Select *.bin file bootloader Tool upgrading is ok, then need renew USB upgrading.reference to 4.1( USB Software Upgrading directly) 4.4 Network updating Network updating includes three ways. Auto Upgrade 、Network upgrade and USB upgrade. No matter Auto Upgrade is ON or Off，Network Upgrade is validated 4.4.1 Auto Upgrade---- When set to “on”...

  • Page 26: Network Upgrade

    Network upgrade ---- Check the process and it will prompt you to upgrade the software. Network upgrade Press “menu” key with RC, select as following. Figure-1 Figure-2 - 26 -...
  • Page 27 Figure-3 Check new version, bounce the following. Figure-4 Select Yes to downloading…… - 27 -...
  • Page 28 Figure-5 After verify, bounce dialog to select “yes” to update the firmware. Waiting…… Figure-6 - 28 -...
  • Page 29 Figure-7 Bounding the following interface that indicates firmware update is successful. - 29 -...

  • Page 30: Usb Upgrade

    Figure-8 Remote control Power off and restart TV. indication led is linking .about 5 minutes , TV bounce following prompt message. otherwise upgrade is defeated. Figure-9 USB upgrade: 1. Copy the upgrade_loader.pkg file to USB Disk;. 2. Make sure there is no other .pkg file in the root directory of USB Disk. 3.

  • Page 31: Trouble Shooting

    figure-2 Next update steps can according to the network upgrade. 5. Trouble shooting When there is something wrong with your TV, you can try turning off the TV and then restart it. - 31 -...
  • Page 32 You can also operate according to the follow chart. If the problems still cann’t be solved, please contact the profession technician. - 32 -...

  • Page 33: Troubleshooting For Remote Control

    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 & IR cable Replace main board - 33 -...

  • Page 34: Troubleshooting For Function Key

    5.2 Troubleshooting for Function Key Buttons does not work Check solder connections and Check switches see if any switches are stuck. Replace Key BD Check key board Check Key BD cable Change Key BD Replace main board - 34 -...

  • Page 35: Tv Won't Power On

    5.3 TV won’t Power On TV won’t power on Make Sure Power Check Power source is live light? Output Replace Check Power BLUE Power Cord Cord Check/replace IR Only BD or Keypad one works Try Power on by RC and Button Check signal Panel Bright Source...

  • Page 36: 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 - 36 -...

  • Page 37: 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 Check cable Replace cable Replace main board - 37 -...

  • Page 38: 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 - 38 -...

  • Page 39: 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 - 39 -...

  • Page 40: Signals Block Diagram And Power Assign

    6. Signals Block Diagram and power assign: (next page) 7. Schematic circuit diagram 8. Explode View - 40 -...
  • Page 41 CSOT Panel V-By-1(0~7) LG Panel AUO Panel V-By-1(8~15) LVDS(2ch) CMI Panel LVDS(2ch) DDR3 2G+2G+2G+2G/64bit HDMI IN HDMI1 SPI Flash HDMI OUT 32M bit？ LVDS IN I2C0 I2C1 LVDS OUT Speater_L AMP_1 HDMI1 TAS5707 Speater_R HDMI2 HDMI2 AMP_2 HDMI3/CEC woofer HDMI3 TAS5711 EEPROM 32k Byte...

  • Page 42: Power Tree

    SERIAL FLASH PIC12F609 Sillicon Tuner +3.3V_TUNER TUNER LD1117-ADJ NAND FLASH EMMC FLASH FUSE 3.3VDEMO DEMO LD1117-3.3 +12V +12VPOWER LD1117-1.2 DEMO AO4459 PWR BEAD TAS5707 TAS5711 LVDSVDD AO3401L T-CON 1.25V VCCK TPS54528 5652 CORE POWER Hisense Electric Co.,LTD Title: Power Tree...
  • Page 43 TS1_OUT_D3 USBx3 HDMIx3 YPbPr1 AV IN AV OUT TS1_OUT_D4 CIGPIO22 CIGPIO23 TS1_OUT_D5 CIGPIO24 TS1_OUT_D6 TS1_OUT_D7 CIGPIO25 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title INDEX INDEX INDEX Size Size Size Document Number Document Number Document Number...
  • Page 44 LVDS IN & VB1 OUT TX_AO0NH RP22 T2A_N TX_AO0NH TX_AO0PH T2A_P TX_AO0PH TX_AO1NH T2B_N TX_AO1NH 预留给裸眼3D用。 TX_AO1PH T2B_P TX_AO1PH TX_AO2NH RP25 T2C_N TX_AO2NH HDMI TX_AO2PH T2C_P TX_AO2PH TX_AOCKNH T2CK_N TX_AOCKNH +12V TX_AOCKPH T2CK_P TX_AOCKPH BLM18PG121SN1 VCC-Switch Panel TX_AO3NH RP31 T2D_N TX_AO3NH TX_AO3PH T2D_P...
  • Page 45 N45A C-CSB2 C_DDR3_CSB2 C-DDR3-ODT-T1 C_DDR3_ODT C_DDR3_ODT C-DDR3-ODT-T2 C-CSB1 C_DDR3_CSB1 C_DDR3_A0 D_DDR3_A0 AVDD_DDR0_S AVDD_DDR0_S DDR3 1G bit 1600MHz DDR3 1G bit 1600MHz A_DDR3_A0 B_DDR3_A0 C-DDR3-BA0-T1 C_DDR3_BA0 C_DDR3_BA0 C-DDR3-BA0-T2 C_DDR3_A1 D_DDR3_A1 A_DDR3_A1 B_DDR3_A1 C_DDR3_A2 D_DDR3_A2 RP131 RP93 A_DDR3_A2 B_DDR3_A2 C-DDR3-BA2-T1 C_DDR3_BA2 C_DDR3_BA2 C-DDR3-BA2-T2 C_DDR3_A3 D_DDR3_A3...
  • Page 46 VCC1.15V VCORE +12V +12V 靠近6M40放置 130403 N45G MST6M40 +3.3V_6M40 +3.3V_6M40 LVDS_PWR_EN LVDS_PWR_EN L571 BLM18PG121SN1/NC AVDDL_MOD Bead L114BLM18PG121SN1 AVDDL_DRV BLM18PG121SN1 DVDD_DDR R1046 AVDDL_LVDSRX L112 C593 L83 B版增加 AVDDL_VB1RX C629 N45F BLM18PG121SN1 100n/16V R106 100n/16V MST6M40 C592 0R/NC AVDDL_HDMITX 100n/16V C594 100n/16V AVDD_DDR_1_S AVDD_DDR_0_S +1.5V_DDR_S...
  • Page 47 C1014 100n/16V VBY0N VBY0N_TX C1019 100n/16V VBY0P VBY0P_TX VBY11P VBY11P-SX C1015 100n/16V VBY1N VBY1N_TX VBY11N VBY11N-SX C1016 100n/16V VBY1P VBY1P_TX C1018 100n/16V VBY2N VBY2N_TX VB1 for INX 58/65 VBY10P VBY10P-SX C1022 100n/16V VBY2P VBY2P_TX VBY10N VBY10N-SX C1024 100n/16V VBY3N VBY3N_TX C1025 100n/16V VBY3P VBY3P_TX...

  • Page 48: Power Control

    C215 C223 4.7k 100n/16V 10u/16V OPWRSB 4.7k 4.7k VCCK C225 C229 100n/16V 4.7u/10V Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title POWER AND INVERTOR POWER AND INVERTOR POWER AND INVERTOR Size Size Size Document Number Document Number...
  • Page 49 3.3VS RESET Circuit 100n/16V 100n/16V 4.7u/10V 10n/50V ES IC STRAPPING 3.3VS ORESET# UART0 10u/10V 3.3VS R710 4.7k 4.7k Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD 18k/NC 100n/16V U0RX 100R Title Title Title 4.7k U0TX 100R PERIPHERAL PERIPHERAL PERIPHERAL...
  • Page 50 10n/50V 10n/50V 10n/50V 10n/50V BLM18PG121SN1/NC LED3/PHYAD3 R103 470R BLM18PG121SN1/NC R104 LED2/PHYAD2 330R FC-3215BXK-465D/NC R105 LED3/PHYAD3 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD 330R Title Title Title FC-3215BXK-465D/NC GPIO/AD/ETHERNET PHY GPIO/AD/ETHERNET PHY GPIO/AD/ETHERNET PHY Size Size Size Document Number...
  • Page 51 调试插座去掉 YJX131025 VCCK VCCK VCCK VCCK VCCK VCCK DVDD3V3 VCCK VCCK DVDD3V3 3.3VS VCCK VCCK 3.3VS VCCK VCCK HDMI_1_SCL R674 HDMI_1_SCL VCCK VCCK DVDD3V3 HDMI_1_SDA HDMI_1_SDA VCCK VCCK R672 HDMI_2_SCL HDMI_2_SCL VCCK VCCK R668 HDMI_2_SDA HDMI_2_SDA VCCK VCCK 预留MMC nandflash R652 HDMI_2_HPD HDMI_2_HPD...
  • Page 52 100R 100n/16V 100n/16V 22u/6.3V/NC 1u/10V/NC 100n/16V/NC 100n/16V/NC 100n/16V/NC RCLK1# CLK1# DDRV CAPs for DRAM IO Power ( Beneath the DDR#2 ) Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD C158 Title Title Title C155 C152 C150 C153 C154 C156...

  • Page 53: Vga Input

    C171 R169 5p/50V AVLC18S02015 R170 R171 HSYNC# HSYNC 100R C172 RV10 R172 5p/50V AVLC18S02015 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title VGA INPUT VGA INPUT VGA INPUT Size Size Size Document Number Document Number Document Number...
  • Page 54 RV15 47p/50V R193 C191 RV16 47p/50V C192 R195 R194 PR0P 100R 22n/25V RSAG7.308.0219 RSAG7.308.0219 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title YPBPR/AV INPUT YPBPR/AV INPUT YPBPR/AV INPUT Size Size Size Document Number Document Number Document Number...
  • Page 55 C616 4.7u/10V 47p/50V 100n/16V R670 22u/6.3V C622 R725 220p/50V/NC 82k/NC R550 SCART1R_PA AV-OUT AUDIO Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title AUDIO IN/OUT/COAXIAL OUT AUDIO IN/OUT/COAXIAL OUT AUDIO IN/OUT/COAXIAL OUT Size Size Size Document Number...
  • Page 56 100k 100n/16V MMBT3904LT1 HDMI_ARC HDMI_ARC HDMI_1_SCL HDMI_1_SCL HDMI_1_SDA HDMI_1_SDA HDMI_2_SCL HDMI_2_SCL HDMI_2_SDA HDMI_2_SDA HDMI_2_HPD HDMI_2_HPD Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title HDMI1/HDMI2/HDMI3 HDMI1/HDMI2/HDMI3 HDMI1/HDMI2/HDMI3 Size Size Size Document Number Document Number Document Number MT5652...
  • Page 57 R956 LVDS_PWR_EN MMBT3904LT1 C1007 C1006 100n/16V/NC HI = > LVDS POWER ON 1u/10V LO = > LVDS POWER OFF Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title LVDS POWER CONTROL LVDS POWER CONTROL LVDS POWER CONTROL...
  • Page 58 TUNER-SW RF_SW RF_SW R313 22k/NC C430 TUNER_SW C429 ANT(5V) 100n/16V 10u/10V R309 CDT-9051324-10_ZLT SHARP-VA4N1BC1201/NC Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title SILICON TUNER SILICON TUNER SILICON TUNER Size Size Size Document Number Document Number Document Number...
  • Page 59 RV56 10p/50V 10p/50V R409 WIFI_CTRL R410 WIFI_EN MMBT3904LT1 4.7k XP34 C353 100n/16V 5V_USB_WIFI_M USB_DM_P1 USB_DP_P1 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD WIFI_EN Title Title Title Size Size Size Document Number Document Number Document Number MT5652 MT5652 MT5652...
  • Page 60 R265 RST_AMP 靠近主IC放置 4.7u/10V 100n/16V 4.7u/10V 10R/NC AVDD AOMCLK_D-AMP AOMCLK_D-AMP AOBCLK_D-AMP AOBCLK_D-AMP AOLRCK_D-AMP AOLRCK_D-AMP AOSDATA0_D-AMP Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD AOSDATA0_D-AMP Title Title Title SPEAKER/MUTE SPEAKER/MUTE SPEAKER/MUTE Size Size Size Document Number Document Number Document Number...
  • Page 61 AVDD3V3 AVDD3V3 +12V +12V +14V WOOFER AMP +14V DVDD3V3 DVDD3V3 STPB3216-121PT 3.3VS 3.3VS OSCL0 OSCL0 OSDA0 STPB3216-121PT OSDA0 AOMCLK_D L115 DVDD3V3 DVDD3V3 AOMCLK_D C385 C345 AOBCLK_D AOBCLK_D 1u/25V 220u/25V AOLRCK_D AOLRCK_D BLM18PG121SN1 AOSDATA0_D +14V BLM18PG121SN1 BLM18PG121SN1 AOSDATA0_D C408 1u/25V C396 1u/25V C403 10u/16V C405 10u/16V...
  • Page 62 power board:4903 RV801 F801 M823 M832 M819 471/AC250V 102/2KV 300v VD902 VD901 10D561 C805 T6.3A/250VAC C807 FR107 FR107 300V T901 M837 C803 R801 L806 M846 M803 M806 100uH EE2832 L801 L802A L802 L802A1 270k 474/AC275V XP801 M836 C801 R802 L807 100uH R901 VD921...

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