Hisense LTDN50K3801UWTRU Service Manual
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Hisense LTDN50K3801UWTRU Service Manual

Hisense LTDN50K3801UWTRU Service Manual

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LCD Television
Service Manual
Chassis： MT5651HROI+MST6M40A
Product Type：LTDN50K3801UWTRU、LTDN50XT880XWT3D(1)
Ver 1.0
Hisense Electric Co.，Ltd.
December，2014

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Summary of Contents for Hisense LTDN50K3801UWTRU

  • Page 1 LCD Television Service Manual Chassis： MT5651HROI+MST6M40A Product Type：LTDN50K3801UWTRU、LTDN50XT880XWT3D(1) Ver 1.0 Hisense Electric Co.，Ltd. December，2014...

  • 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 Specifications ........................- 9 -  3.

  • 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 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. • Do not stack the circuit boards. Failure to observe this precaution may result in problems resulting from scratches on the parts, the deformation of parts, and short-circuits due to residual electric charge.

  • Page 9: Product Function Specifications

    2. Product Function Specifications 2.1 TV Front and Rear LTDN50K3801UWTRU: TV Front - 9 -...
  • Page 10 TV Rear - 10 -...
  • Page 11 LTDN50XT880XWT3D(1) TV Front - 11 -...
  • Page 12 TV Rear - 12 -...
  • Page 13 2.2 Main board: 5784 The top Note: The terminal function of main board can refer to the TV Rear instruction. (page 10 or page 12) - 13 -...
  • Page 14 The Bottom Basic feature: Screen Product Main & Power board Panel LVDS cable Resolution MB：RSAG2.908.5784\ROH ； LTDN50K3801UWTRU 3840*2160 HE500HU-B01\S1 HX2-2X25KLB500-LG-1\ROH PB： RSAG2.908.5687-26\ROH MB：RSAG2.908.5784\ROH 、 LTDN50XT880XWT3D(1) 3840*2160 V500DK2-KS1\JK\ROH FFC-51-505\505.0\白\ROH PB： RSAG2.908.4903-07\ROH - 14 -...
  • Page 15 2.3 Spec. LTDN50K3801UWTRU - 15 -...
  • Page 16 LTDN50XT880XWT3D(1) - 16 -...

  • Page 17: Factory/Service Osd Menu And Adjustment

    3. Factory/Service OSD Menu and Adjustment 3.1 To enter the Factory OSD Menu a. With 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+”/“VOL-” enter the selected function menu.
  • Page 18 3.2.1 Signal prefabricate 3.2.3 Factory Option 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. - 18 -...
  • Page 19 Clear the EEPROM Item Meaning Note Clean data except Clean Protected Clear partly WB data and Auto Color data Clean All Clear completely Clean all data Update CI+Credential Query CI+Credential 3.2.4 Firmware Note: The factory menu date varies according to different sources. Incase changing the factory data by error, you can choose to “Clean Protected”, by which you can resume the default value.

  • Page 20: Designer Menu

    3.3 Designer Menu Note: Above “Factory/Service OSD Menu”is reference for chassis MTK5651 , please refer to the actual units to determine the appearances. 4. Software Upgrading Before upgrading, read the following. First: Upgrade the software. Second: To clear the EEPROM . A Select the item “Clear Unprotected”.

  • Page 21: Usb Upgrading Failure

    4.2 USB upgrading failure If USB upgrading failure, then need burning the Nand Flash program file“ *.bin ”to the Nand Flash. Hardware connecting Connect the unit to your pc with a USB-to-serial port cable. USB port connects to your PC and serial port to the TV’s RS232 port.
  • Page 22 Select the default value, the driver will be installed step by step. - 22 -...

  • Page 23: 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 Communicate port and flash baud rate? See the following...
  • 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 MT5651), select 115200. 2、 ...
  • Page 25 Click  ,  bounce  the  following  dialog  box.  Load  Bin  File：find  the  upgrading  program file, and select it. for example:HIS_5651_m1v2_oceania_secure_nandboot.bin.  Press “Upgrade” button and start upgrading.，if update defeat, try again.  Start upgrade Select *.bin file - 25 -...

  • Page 26: Network Updating

    4.4 Network updating Network updating includes two ways. one is “Auto Upgrade ”the other is “Internet”. Whether Auto Upgrade is ON or Off，Network Upgrade is validated Auto Upgrade---- When it is set to “on” , Turn on automatic check whether or not have any new updating file in servers when connects to the network.
  • Page 27 Figure-2 Figure-3 Check new version, then bounce the following . Figure-4 - 27 -...
  • Page 28 Select update to downloading…… Figure-5 After verify, bounce dialog to select “yes” to sure to update the firmware. Waiting…… Figure-6 - 28 -...
  • Page 29 Bounding following interface that indicates firmware update is sussessful. Figure-7 Figure-8 Upgrade successfully. power off and restart TV can bounce following prompt message. otherwise upgrade is defeat. Figure-9 - 29 -...
  • Page 30 2、Auto upgrade Auto upgrade and Network have little difference only in figure-4. As following Auto Upgrade: Network upgrade: figure-2 - 30 -...

  • Page 31: Trouble Shooting

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

  • Page 32: 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 - 32 -...

  • Page 33: 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 - 33 -...

  • Page 34: 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 Check signal RC and Button Panel Bright Source...

  • Page 35: 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 - 35 -...

  • Page 36: 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 - 36 -...

  • Page 37: 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 - 37 -...

  • Page 38: 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 6. Signals Block Diagram and power assign: 7. Schematic circuit diagram 8.
  • Page 39 TUNER_3V3 LD1117-ADJ S2 TUNER EMMC FLASH PIMCIA HDMI SWITCH 1.2V S2 DEMO MP1482 PIC12F609 +12V +12VPOWER AO4459 MT8261 +12V PWR BEAD TAS5707 TAS5711 LVDSVDD AO3401L T-CON A8293 S2 TUNER LNB 1.25V VCCK MT5651 MP671 Hisense Electric Co.,LTD Title: Power Tree...
  • Page 40 V-By-1(0~7) CSOT Panel LG Panel V-By-1(8~15) AUO Panel LVDS(2ch) CMI Panel LVDS(2ch) DDR3 2G+2G+2G+2G/64bit HDMI IN HDMI1(UD) SPI Flash HDMI OUT ？ ？ ？ ？ 32M bit LVDS IN I2C1 I2C0 LVDS OUT Speater_L AMP_1 HDMI3 TAS5707 Speater_R HDMI2 PS331TQFP64G HDMI2 HDMI3/CEC AMP_2...
  • Page 41 S2 DEMO OPWM6 PACLE strap[0] HDMI USB HUB SWITCH S2 TUNER T+C TUNER USBx3 HDMIx4 YPbPr1 SCART AV IN 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...
  • Page 42 2.2 uH C454 C450 C242 C606 C605 100k 1u/25V 22u/6.3V 22u/6.3V 22u/6.3V 22u/6.3V 22u/6.3V 100n/16V 100n/16V 100n/16V 靠 靠 D C-DC 靠 靠 D C-DC 249k MP1470 靠 靠 靠 靠 靠 靠 5p/50V 40.2k Vout=0.8V*(1+R1/R2) 1.198V Hisense Electric Co.,LTD...
  • Page 43 LVDS IN & VB1 OUT TX_AO0NH RP22 T2A_N TX_AO0NH TX_AO0PH T2A_P TX_AO0PH TX_AO1NH T2B_N TX_AO1NH TX_AO1PH T2B_P TX_AO1PH TX_AO2NH RP25 T2C_N HDMI TX_AO2NH TX_AO2PH T2C_P TX_AO2PH TX_AOCKNH T2CK_N TX_AOCKNH TX_AOCKPH T2CK_P TX_AOCKPH TX_AO3NH RP31 T2D_N TX_AO3NH TX_AO3PH T2D_P TX_AO3PH UD_HDMISCL_1 R658 HDMI_3_SCL TX_AO4NH...
  • Page 44 N40A MST6M40 C_DDR3_A0 D_DDR3_A0 C-CSB2 C_DDR3_CSB2 AVDD_DDR0_S AVDD_DDR0_S DDR3 1G bit 1600MHz DDR3 1G bit 1600MHz A_DDR3_A0 B_DDR3_A0 C_DDR3_A1 D_DDR3_A1 C-DDR3-ODT-T1 C_DDR3_ODT C_DDR3_ODT C-DDR3-ODT-T2 A_DDR3_A1 B_DDR3_A1 C_DDR3_A2 D_DDR3_A2 C-CSB1 C_DDR3_CSB1 A_DDR3_A2 B_DDR3_A2 C_DDR3_A3 D_DDR3_A3 C-DDR3-BA0-T1 C_DDR3_BA0 C_DDR3_BA0 C-DDR3-BA0-T2 3,4,5,6,7,8,9,10,11,12,13,14,15,16,17 C_DDR3_A4 A_DDR3_A3 B_DDR3_A3 D_DDR3_A4...
  • Page 45 3,4,5,6,7,8,9,10,11,12,13,14,15,16,17 VCC1.15V VCORE +12V +12V 12,13,16,17 靠 靠 6 M40 放 放 130403 2,5,6,7,8,9,10,12,14,15,16 N40G MST6M40 +3.3V_6M40 17,19,20 +3.3V_6M40 LVDS_PWR_EN LVDS_PWR_EN Bead AVDDL_MOD L79 BLM18PG121SN1 AVDDL_DRV BLM18PG121SN1 DVDD_DDR AVDDL_LVDSRX C593 L83 B 版 版 版 AVDDL_VB1RX C629 N40F BLM18PG121SN1 100n/16V 100n/16V MST6M40 C592...
  • Page 46 VB1 for CSOT VB1 for SAMSUNG 75 +3.3V_6M40 VBY11P-SX R649 100R/NC R496 VBY11N-SX 10k/NC VBY11P VBY11P-SX C226 100n/16V VBY0N R584 100R 3D_EN VBY10P-SX VBY0N_TX VBY11N VBY11N-SX 3D_EN C286 100n/16V VBY0P VBY10N-SX VBY0P_TX C290 100n/16V VBY1N R405 3D_EN_MT5651 VBY1N_TX VBY10P VBY10P-SX VBY1P C293 100n/16V VBY1P_TX...
  • Page 47 4.7u/10V 1k/NC 4.7k MMBT3904LT1 R507 10u/16V 100n/16V VCCK VCCK MMBT3904LT1 MMBT3904LT1 4.7k 4.7k OPWRSB Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD MMBT3904LT1 4.7k Title Title Title POWER AND INVERTOR POWER AND INVERTOR POWER AND INVERTOR Size Size Size...
  • Page 48 PACLE 3.3VS RESET Circuit 100n/16V 100n/16V 4.7u/10V 10n/50V IC STRAPPING 3.3VS ORESET# 10u/10V UART0 3.3VS R710 4.7k 4.7k Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD 100n/16V 18k/NC U0RX 100R Title Title Title 4.7k U0TX 100R PERIPHERAL PERIPHERAL PERIPHERAL...
  • Page 49 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 50 2,3,4,6,7,8,9,10,11,12,13,14,15,16,17 VCCK VCCK VCCK VCCK 2,6,7,8,9,10,12,14,15,16,17 2,16 VCCK VCCK DVDD3V3 VCCK VCCK 2,3,11,12,16,17 DVDD3V3 3.3VS VCCK VCCK 2,3,4,10,11 3.3VS VCCK VCCK VCCK VCCK VCCK VCCK VCCK VCCK VCCK VCCK VCCK POWER_LED POWER_LED VCCK DVDD3V3 ADIN0 ADIN0 VCCK ADIN1 ADIN1 VCCK OIRI VCC3IO_C OIRI...
  • Page 51 C154 C155 C156 C157 C151 10u/10V 100u/16V/NC 10u/10V 100n/16V 100n/16V 100n/16V 100n/16V 100n/16V 10u/10V Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title DRAM X2 DRAM X2 DRAM X2 Size Size Size Document Number Document Number Document Number...
  • Page 52 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 53 靠 靠 靠 靠 靠 靠 靠 靠 - ---2013.11.07 R193 RV16 C191 47p/50V C192 R195 R194 PR0P 100R 10n/50V RADIATOR-2-HX RSAG7.070.0526 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...
  • Page 54 MT5651_0928 10n/50V C200 C199 R201 C203 C201 1u/10V 100n/16V 100p/50V 100R/NC 100n/16V DQT-015 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title AUDIO IN/OUT/SPDIF OUT AUDIO IN/OUT/SPDIF OUT AUDIO IN/OUT/SPDIF OUT Size Size Size Document Number Document Number...
  • Page 55 R275 HPDET R277 XS13 C480 DC1R019JB1 100n/16V RV89 RV94 RV95 RV97 AVLC18S02015 AVLC18S02015 AVLC18S02015 AVLC18S02015 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title HDMI1/HDMI2 HDMI1/HDMI2 HDMI1/HDMI2 Size Size Size Document Number Document Number Document Number MT5325...
  • Page 56 R323 LVDS_PWR_EN MMBT3904LT1 C312 C314 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 57 CI_VCC Tolerence +/-5% 10p/50V PCMCIA 100R R516 4.7k AP2161,EN==active low, R518 R521 max load current=1A GPIO07 CI_OCP 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...
  • Page 58 10p/50V 10p/50V R409 WIFI_CTRL 1k/NC R410 WIFI_EN MMBT3904LT1/NC 4.7k/NC C353 XP21 100n/16V/NC 5V_USB_WIFI_M USB_DM_P0 USB_DP_P0 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD WIFI_EN Title Title Title USB/WIFI USB/WIFI USB/WIFI Size Size Size Document Number Document Number Document Number 增...
  • Page 59 RST_AMP C269 C270 10R/NC 4.7u/10V 100n/16V 4.7u/10V AVDD 器 器 器 器 器 器 器 功 功 p in 脚 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Hisense Electric Co.,LTD 20130326 by tony Title Title Title SPEAKER/MUTE SPEAKER/MUTE SPEAKER/MUTE Size Size...
  • Page 60 +14V WOOFER AMP BLM18PG121SN1 BLM18PG121SN1 close to AVDD3V3 C345 2,3,4,6,8,9,10,13 AVDD3V3 pin34 35 40 41, 20130326 by tony DVDD3V3 DVDD3V3 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 100u/25V 2,5,6,7,8,9,10,12,14,15,16 +12V 2,12,13,16 +12V +14V BLM18PG121SN1 BLM18PG121SN1 +14V C403 10u/6.3VV C405 10u/6.3VV 2,5,16 DVDD3V3 C737 10u/25V C736 10u/25V 2,3,5,11,12,16 DVDD3V3 close to...
  • Page 61 VD807 VD812 IN5408 MUR460 C846 C803 474/AC275V 471/AC250V (EMC) F801 C871 RT801 VD808 VB801 224/450V XP802 T 6.3A L 250V L812 NTC5D2-15 L824 MUR460 power board:5687 W806 L802 KBJ1006 C865 L801 R833 XP803 W807 R970 R802 LCL-3505HF 68U/450V LCL-3505HF V802 C860 R804 R807...
  • 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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