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LCD Television
Service Manual
Chassis:
9206B
Product:
LTDN40D50TAM
LHD32D50TAM
Ver 1.0
Hisense Electric Co.,Ltd.
May , 2015

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Table of Contents
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Summary of Contents for Hisense LTDN40D50TAM

  • Page 1 LCD Television Service Manual Chassis: 9206B Product: LTDN40D50TAM LHD32D50TAM Ver 1.0 Hisense Electric Co.,Ltd. May , 2015...
  • Page 2: Table Of Contents

    Content Content ................................... - 2 -  Service Manual ..............................- 3 -  1. Precautions and notices ..........................- 3 -  1.1 Warning .............................. - 4 -  1.2 Notes ..............................- 7 -  2. Product Specifications ..........................- 10 -  2.1 Main board layout ..........................- 10 -  2.2 The service manual Includes products .....................
  • Page 3: Service Manual

    WHEN REPLACEMENT PARTS ARE REQUIRED, BE SURE TO USE REPLACEMENT PARTS SPECIFIED BY THE MANUFACTURER. Proper service and repair is important to the safe, reliable operation of all Hisense Electric Co., Ltd Equipment. The service procedures recommended by Hisense and described in this Service Guide are effective methods of performing service operations.
  • Page 4: Warning

    Accordingly, a serviceman that uses a service procedure or tools, which are not recommended by Hisense, must first satisfy himself thoroughly that neither his safety nor the safe of the equipment will be jeopardized by the service method selected.
  • Page 5 All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set by a wristband with resistance.
  • Page 6 cable clamps. -The insulation of the mains lead should be checked for external damage. 1.1.6 (1) Do not touch Signal and Power Connector while this product operates. Do not touch EMI ground part and Heat 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.
  • Page 7: Notes

    (7) Do not pull out or insert the power cable from/to an outlet with wet hands. It may cause electric shock. (8) Do not damage or modify the power cable. It may cause fire or electric shock. (9) If the power cable is damaged, or if the connector is loose, do not use the product: otherwise, this can lead to fire or electric shock.
  • Page 8 removing the power board, start servicing at least 2 minutes after the main power has been turned off. • While the main power is on, do not touch any parts or circuits other than the ones specified. If any connection other than the one specified is made between the measuring equipment and the high voltage power supply block, it can result in electric shock or activation of the leakage-detection circuit breaker.
  • Page 9 problems resulting from scratches on the parts, the deformation of parts, and short-circuits due to residual electric charge. • Routing of the wires and fixing them in position must be done in accordance with the original routing and fixing configuration when servicing is completed. All the wires are routed far away from the areas that become hot (such as the heat sink).
  • Page 10: Product Specifications

    2. Product Specifications 2.1 Main board layout 2.1.1 ; 1149238 LTDN40D50TAM use CVTE board: TP.S512.PB751\40D50TAM\ROH - 10 -...
  • Page 11: The Service Manual Includes Products

    2.2 The service manual Includes products Product Main & power board(one board) Digital system Panel LVDS cable LTDN40D50TAM TP.S512.PB751\40D50TAM\ROH DVB-T2 JHD396DF-E01 HX2-2X20KLB500P-S-1\500\ROH 2.3 TV Front and Rear LTDN40D50TAM TV Front - 11 -...
  • Page 12 LTDN40D50TAM TV Back - 12 -...
  • Page 13 2.4 Specification - 15 -...
  • Page 14 2.4 Remote control - 17 -...
  • Page 15: Factory/Service Osd Menu And Adjustment

    3. Factory/Service OSD Menu and Adjustment 3.1 How to enter the Factory OSD Menu With user’s RC Power on the TV. 1. Press “Menu” button and call up User OSD Menu. 2. Select “ Sound” -> press “OK” button on RC to ensure then move button to “Balance”...
  • Page 16 White Balance: Colour Temp R Gain G Gain B Gain R Offset G Offset B Offset Function: TO Fac Power mode last memory Software update start Uart bebug on/off 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...
  • Page 17 3.2.2、Design Menu White balance Picture Curve Volumn Curve Sound Mode Note : The above “Factory/Service OSD Menus” are reference only, please refer to the actual unit to determine the appearances. - 20 -...
  • Page 18: Software Updating

    4. Software updating 4.1 USB upgrade USB upgrade includes two methods. One is USB directly upgrade the other is USB menu upgrade. * USB directly upgrade 1、LHD32D50EU upgrading file rename——SIS506_52.bin LTDN40D50EU upgrading file rename——SIS506_67.bin SIS506_XX.bin fi 2、Unlock the compress upgrading file and copy the le to the USB disk root directory which not contain other *.bin files.
  • Page 19: Sis Tool Upgrade

    When 100%, next appear: When 100%, next appear: It indicates that USB Upgrades successfully.Plug the USB disk ,then TV can automatically restart. Note: During upgrading, power other abnormally operations .otherwise boot can be destroied .since boot is destroied , USB upgrading method is availability no longer.
  • Page 20 2、Hardware connecting You can update the software through a special tool (as following) Connect the SIS debug board to TV use VGA port the other USB port to the PC. USB port Connect to the PC Connect to the TV VGA por 3、SIS Tool upgrade with Uart2spi updating Tool Connect the SIS debug board.
  • Page 21 “Comport setting “item need choose corresponding com port. How to look up corresponding com port? Now show.as following - 24 -...
  • Page 22 Click “Connect” button AC power on the TV, interface as following. click “Restore” item、load the *.bin file then click “restore “button - 25 -...
  • Page 23 Updating…… ,about 13 minutes. As following. after“Restore successful”appears as following.it indicates the main software upgrading is successful. then AC power off and power on the TV. - 26 -...
  • Page 24: 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 25 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 - 28 -...
  • Page 26 Replace Main Replace Main BD Power on Replace Panel (to contact Hisense tech support.) Replace Power BD Notes: Above TV configure is that TV in work state, indication Led is blue and in standby state the indication led is red.
  • Page 27 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 - 30 -...
  • Page 28 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 - 31 -...
  • Page 29 5.6 Troubleshooting for YPbPr input Note: (The K220 mould TV has not 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 - 32 -...
  • Page 30: Circuit Instruction

    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. Circuit instruction Power assign and Main board signal process - 33 -...
  • Page 31 - 34 -...
  • Page 32: Schematic Circuit Diagram

    7. Schematic circuit diagram 8. Explode View - 35 -...
  • Page 33 RB124 RB125 RB126 RB127 DB102 CB118 TB101 Vbridge RB141 DB103 RB142 RB123 T3.15AL 250V~ RB143 SGND CB117 CYB1 CYB4 DB106 Vbridge BB101 NTCB1 RB128 CXB1 CB111 RB129 MOVB1 RB130 QB101 CNB1 SGND SGND RB106 CYB2 LCB1 CYB5 CB116 DB101 靠近 放置...
  • Page 34 0ohm-0402-±5%-1/16W 0.1uF-0402-X5R-±20%-16V 0ohm-0402-±5%-1/16W 0.1uF-0402-X5R-±20%-16V TEST PVCC VCC_PANEL 5V_STB NC/10uF-0805-X5R-±20%-16V 1V0_M TEST 10uF-0805-X5R-±20%-16V RM121 4.5V~18V INPUT 1uF-0402-X5R-±20%-16V VFB = 0.6V 4.5V~18V INPUT 500KHZ CD10 CD12 CD11 VFB = 0.6V 500KHZ CD36 CD37 CD13 CD14 SYH113ADC PANEL_EN LED-SHORT 4K7ohm-0402-±5%-1/16W SYH112ADC 47Kohm-0402-±5%-1/16W CTD0504-4R7-M NC/0.22uF-0402-X5R-±10%-16V NC/100uF-16V-±20%-5×11-105 ℃...
  • Page 35 5V_STB HDMI_ARC 10Kohm-0402-±5%-1/16W 47Kohm-0402-±5%-1/16W 22pF-0402-NPO-±5%-50V 22pF-0402-NPO-±5%-50V 0.1uF-0402-X5R-±20%-16V NC/AVLC18S02003 82ohm-0402-±5%-1/16W NC/AVLC18S02003 180ohm-0402-±5%-1/16W RXP2_A HDMIA_SCL/ SCL_HDMI_A RX2+ RXM2_A HDMIA_SDA/ SDA_HDMI_A RX2- RXP1_A HDMIA_5V ARC_DET RX1+ RXM1_A NC/1Mohm-0402-±5%-1/16W RX1- RXP0_A 68ohm-0402-±5%-1/16W RX0+ 68ohm-0402-±5%-1/16W 3K3ohm-0402-±5%-1/16W RXM0_A 4K7ohm-0402-±5%-1/16W RX0- RXCP_A RXC+ RXCM_A RXC- CEC_A HDMIA_SCL/ CH18 220pF-0402-X7R-±10%-50V HDMIA_5V HDMIA_SDA/...
  • Page 36 AV_IN/ CVBS1_IN PJ-320A(Φ5.5mm) SPDIFO SPDIF_OUT COAX COAX AVLC18S02003 AV_IN/ 220pF-0402-X7R-±10%-50V AV-IN/Y 75ohm-0402-±5%-1/16W NC/AVLC18S02003 NC/AV19-01S-0020( 橙 密封 AV_R 150ohm-0402-±5%-1/16W 180ohm-0402-±5%-1/16W AV-R/Pr AV_L 0.22uF-0402-X5R-±10%-16V NC/100ohm-0402-±5%-1/16W AV-L/Pb NC/0.1uF-0402-X5R-±20%-16V NC/330pF-0402-X7R-±10%-50V CI15 RI21 4700pF-0402-X7R-±10%-50V AV_R AV_RIN 1000pF-0402-X7R-±10%-50V CI16 RI23 NC/AVLC18S02003 CN11 NC/220pF-0402-X7R-±10%-50V 0.1uF-0402-X5R-±20%-16V AV_IN/ 12Kohm-0402-±5%-1/16W 5V_M CVBS 12Kohm-0402-±5%-1/16W...
  • Page 37 V_5V_CI 5V_M V_5V_CI AV13 VPP1 VPP2 FCM1005KF-121T06(120ohm-500mA) CI_D0 10uF-0603-X5R-±20%-6.3V 22ohm-0402-±5%-1/16W CI_D1 CE1# CI_CE1 CI_CE 0.1uF-0402-X5R-±20%-16V NC/10pF-0402-NPO-±5%-50V CI_D2 CE2# CI_D3 CI_D4 CIIN_CD1 CD2# CI_D5 CD1# CI_D6 VS1# CI_D7 IOIS16# CI_WAIT WAIT# INPACK# CI_IRQ IRQ# CI_RST RESET RC14 CI_IOWR PC_IOW IOWR# RC12 CI_IORD PC_IOR IORD#...
  • Page 38 CN14 AUXOK VCC_PANEL VCC_PANEL VCC_PANEL 3V3_STB 360ohm-0402-±1%-1/16W RXO0_N RXO0_P AUX_PWROK NC/10Kohm-0402-±5%-1/16W RXO1_N RXO1_P RXO2_N RXO2_P 3V3_M 1V0_M AVDD3P3_MCPLL 3V3_M 3V3_M RXOC_N RXOC_P 1V5_DDR RXO3_N RXO3_P 1V0_M 3V3_M RXE0_N RXE0_P 3V3_M RXE1_N RXE1_P RXE2_N RXE2_P 1Kohm-0402-±5%-1/16W NC/1uF-0402-X5R-±20%-10V RXEC_N RXEC_P NC/10Kohm-0402-±5%-1/16W RXE3_N RXE3_P CON1/ Display...
  • Page 39 HDMI POWER/GND (1.0V/3.3V) ADC POWER/GND (1.0V/3.3V) PLL POWER/GND (3.3V) 3V3_STB AVDD3P3_HDMI_AUX_T 3V3_M AVDD3P3_HDMI 1V0_M AVDD1P0_HDMI 3V3_M AVDD3P3_MCPLL Pin150 Pin128 Pin145 Pin243 1V0_M 0ohm-0402-±5%-1/16W 0ohm-0402-±5%-1/16W 1uF-0402-X5R-±20%-6.3V 0ohm-0402-±5%-1/16W 1uF-0402-X5R-±20%-6.3V 0ohm-0402-±5%-1/16W 0.1uF-0402-X5R-±20%-16V 1uF-0402-X5R-±20%-6.3V 0.1uF-0402-X5R-±20%-16V 10uF-0603-X5R-±20%-6.3V Pin89 0.1uF-0402-X5R-±20%-16V 0.1uF-0402-X5R-±20%-16V 10uF-0603-X5R-±20%-6.3V 0.1uF-0402-X5R-±20%-16V IVDD POWER (1.0V) 1uF-0402-X5R-±20%-6.3V 3V3_M 0.1uF-0402-X5R-±20%-16V...
  • Page 40 MUTE_AMP AMP_MUTE/ 10uF-0805-X5R-±20%-16V 4K7ohm-0402-±5%-1/16W NC/0.1uF-0402-X5R-±20%-16V 4K7ohm-0402-±5%-1/16W 470uF-16V±20%-10×12-105 ℃ 编带 -F=5.0-XL NC/0.1uF-0402-X5R-±20%-16V AVCC 10ohm-0402-±5%-1/16W CN16 CN161 LOUT+ LOUT- ROUT- 100ohm-0402-±5%-1/16W 0.1uF-0402-X5R-±20%-16V 1uF-0402-X5R-±20%-16V ROUT+ 0.033uF-0402-X7R-±10%-16V 0.1uF-0402-X5R-±20%-16V 1000pF-0402-X7R-±10%-50V 0.033uF-0402-X7R-±10%-16V 100Kohm-0402-±5%-1/16W 0.22uF-0402-X5R-±10%-16V 100ohm-0402-±5%-1/16W NC/0ohm-0402-±5%-1/16W AMP_MUTE/ 0.22uF-0402-X5R-±10%-16V NC/4PIN-2.54-D-H-G-B PVCCL 0.1uF-0402-X5R-±20%-16V 4PIN-2.54-D-H-G- 带扣 PH-AROUT HP_R FAULT PVCCL CA10 CA11...
  • Page 41 RF_T2_IN 5V_ANT NC/SDCL1608CR56JTDF NC/FSMD050 3V3_Tun NC/0.1uF-0402-X5R-±20%-16V CD50 3V3_Tun 5V_STB 5V_ANT 180pF-0402-NPO-±5%-50V NC/10Kohm-0402-±5%-1/16W SDCL1005CR18JTDF(180nH-0402±5%-C) 0.1uF-0402-X5R-±20%-16V 470pF-0402-X7R-±10%-50V 1.2pF-0402-NPO-±0.25pf-50V 220pF-0402-X7R-±10%-50V 1Kohm-0402-±25% SDCL1005C68NJTDF(68nH-0402±5%-C) 顺络 顺络 NC/SDCL1005CR27JTDF( SDCL1005C2N7STDFM01 SDCL1005CR18JTDF(180nH-0402±5%-C) 1Kohm-0402-±25% SDCL1005CR27JTDF( RD40 CD45 CD46 BAV99-BR SDCL1005CR18JTDF(180nH-0402±5%-C) 0.1uF-0402-X5R-±20%-16V 0.1uF-0402-X5R-±20%-16V NC/4K7ohm-0402-±5%-1/16W 0.022uF-0402-X7R-±10%-16V NC/10Kohm-0402-±5%-1/16W RD41 CT33 R840 NC/10Kohm-0402-±5%-1/16W RF_INPUT LT13 RD42...

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