Hisense LHD19W57EU Service Manual
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Hisense LHD19W57EU Service Manual

Hisense LHD19W57EU Service Manual

Liquid crystal display television
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Liquid Crystal Display Television
Service Manual
Chassis： MT5330
Product Type：
LHD19W57EU
LHD22W57EU
Ver 1.0
Hisense Electric Co.，Ltd.
June, 2008

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Summary of Contents for Hisense LHD19W57EU

  • Page 1 Liquid Crystal Display Television Service Manual Chassis： MT5330 Product Type： LHD19W57EU LHD22W57EU Ver 1.0 Hisense Electric Co.，Ltd. June, 2008...

  • Page 2: Table Of Contents

    7.5 Troubleshooting for TV/VGA/HDMI input...................- 32 - 7.6 Troubleshooting for YPbPr input....................- 33 - 7.7 Troubleshooting for Video/S-Video/ SCART input ...............- 34 - 7.8 Other problems ..........................- 35 - 8. Explode View............................- 37 - 9. Schematic circuit diagram ........................- 37 - Hisense Confidential - 2 -...

  • 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

    LCD TV Service Manual not undertaken any such broad evaluation. 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 Safety regulations require that after a repair the set must be returned in its original condition. In particular attention should be paid to the following points. -Note: The wire trees should be routed correctly and fixed with the mounted Hisense Confidential - 5 -...
  • Page 6 Confirm that the voltage has dropped to a safe level before disconnecting or connecting the connector. Hisense Confidential - 6 -...

  • Page 7: Notes

    • 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. Especially when installing and removing the power board, start servicing at least 2 minutes after the main power has Hisense Confidential - 7 -...
  • Page 8 • 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. • Routing of the wires and fixing them in position must be done in accordance with Hisense Confidential - 8 -...
  • Page 9 The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the set. Hisense Confidential - 9 -...

  • Page 10: Product Function Specifications

    LCD TV Service Manual 2. Product Function Specifications 2.1 Product Function Hisense Confidential - 10 -...
  • Page 11 LCD TV Service Manual Hisense Confidential - 11 -...

  • Page 12: Specifications

    LCD TV Service Manual 2.2 Specifications Allowable temperature of operation environment 0℃ to 40℃ ACCESSORIES User′s Manual Remote Control Unit Dry Cell Battery Hisense Confidential - 12 -...

  • Page 13: Lcd Panel

    LCD TV Service Manual 3. LCD Panel 3.1 HT190WG1-101 (PN: 1042399) BOE BLOCK DIAGRAM Hisense Confidential - 13 -...

  • Page 14: General Features

    LCD TV Service Manual General Features GENERAL SPECIFICATI0NS 3.2 LTM220M1-L01 (PN: 1041814) GENERAL SPECIFICATI0NS Hisense Confidential - 14 -...

  • Page 15: Chassis Layout And Overall Wiring Diagrams

    LCD TV Service Manual 4. Chassis Layout and Overall Wiring Diagrams 4.1 Chassis Layout LHD19W57EU Description Part No Type/Model 116016 Main Board RSAG2.908.1171-3\ROH RSAG7.820.1188\VER.B\ROH 1041467 Inverter Board JSI-190411B\ROH Outsourcing 114552 Keypad Board RSAG2.908.1168-2\ROH RSAG7.820.1214\ROH 114175 IR&Led Board RSAG2.908.1169 RSAG7.820.1213\ROH LHD22W57EU...

  • Page 16: Overall Wiring Diagrams

    LCD TV Service Manual 4.2 Overall Wiring Diagrams LHD19W57EU DESCRIPTION SPECIPICATION NOTE Main Power TJC2-3Y-250-2\ROH Inverter Power Inlet--> BD CN1F Back light power to panel the connectors on the panels Inverter BD CN2、CN3、CN4、CN5<-->Panel 12V power and communication TJC10T-6Y-150\ROH Inverter BD CN3F<-->Main BD J20...
  • Page 17 Main BD and power BD Buttons TJC10T-3Y-650\ROH Main BD J11<--> Keypad BD XPK01 LED & IR TJC10T-5Y-700\ROH Main BD J27<--> LED&IR BD XPR01 Audio output (L/R) TJC3H-4Y-800-600\ROH Main BD J29<-->Speaker L/R LVDS signal HX2-2X15NLB150-BOE\ROH Main BD J6<-->Panel Hisense Confidential - 17 -...

  • Page 18: Factory/Service Osd Menu

    WBH Color Adjust high color temporarily Adjust brightness WBL Brightness temporarily Adjust contrast WBL Contrast temporarily WBL Color Adjust low color temporarily Note: Before adjusting, please change to desired source. Different source has different WB values. Hisense Confidential - 18 -...
  • Page 19 Huang Dao Huangdao Industrial Park Gui Yang Gui Yang Industrial Park Set Channel Liao Ning Liao Ning Industrial Park Hungary Hisense Hungary Australia Hisense Australia France Hisense France Auto Color Available only in component and VGA source M-Can enter factory mode with factory RC or user RC.
  • Page 20 Contrast Movie mode MOVIE Saturation Saturation of Movie mode Volume Curve When value is 1 Think about the Volume Min Audio out power Sound before adjusting When value is 20 Volume 20 Think about the Hisense Confidential - 20 -...
  • Page 21 Standard, Speech, Audio Mode Music 120HZ Different frequencies for different Audio 500HZ Mode 1.5kHZ 5kHZ 10kHZ NOTE： The above “Factory/Service OSD Menu” are reference only, please refer to the actual units to determine the appearances Hisense Confidential - 21 -...

  • Page 22: Software Upgrading

    Connect 4pin) USB connects to pc For the first connecting, the pc will recognize and automatically install the USB device. The process is just like the installation of a mini disk, see the following picture. Hisense Confidential - 22 -...
  • Page 23 LCD TV Service Manual Hisense Confidential - 23 -...

  • Page 24: Upgrading With The Mtktool

    If following error appears, it means the related port is not be set properly. Ignore these errors, click “Confirm” and enter the MtkTool main interface, see the following picture. 1—Flash chip model 2—The port through which the PC communicate with the chip. Hisense Confidential - 24 -...
  • Page 25 LCD TV Service Manual 3—The communicating baud rate 4—The new program file (*.bin) for upgrading. 5—Click this button can select the *.bin file to be used for upgrading. 6—Click to start upgrading. Hisense Confidential - 25 -...
  • Page 26 If the flash chip does not support high speed transport, do not select this option; otherwise, reserve the selected mood. Click “Browse” button (5), find the upgrading program file, select it. Press “Upgrade” button and start upgrading. The following interface appears on the screen, indicating upgrading successfully. Hisense Confidential - 26 -...
  • Page 27 LCD TV Service Manual Hisense Confidential - 27 -...

  • Page 28: Troubleshooting

    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 Hisense Confidential - 28 -...

  • Page 29: Troubleshooting For Function Key

    LCD TV Service Manual 7.2 Troubleshooting for Function Key Buttons does not work Replace tact switch Check switches Replace Key BD Check key board Check Key BD cable Change Key BD cable Replace main board Hisense Confidential - 29 -...

  • Page 30: Tv Won't Power On

    Check/replace IR Only BD or Keypad one works Try Power on by Check signal RC and Button OSD? Source Neither Both works Work Replace Main Replace Main BD Power on Replace Panel Replace Power BD Hisense Confidential - 30 -...

  • Page 31: Troubleshooting For Audio

    LCD TV Service Manual 7.4 Troubleshooting for Audio No sound Reconnect Check connecter Replace speaker wire Check speaker wire Replace speaker set Check speaker set Replace main board Hisense Confidential - 31 -...

  • Page 32: Troubleshooting For Tv/Vga/Hdmi Input

    LCD TV Service Manual 7.5 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 Hisense Confidential - 32 -...

  • Page 33: Troubleshooting For Ypbpr Input

    LCD TV Service Manual 7.6 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 Hisense Confidential - 33 -...

  • Page 34: Troubleshooting For Video/S-Video/ Scart Input

    7.7 Troubleshooting for Video/S-Video/ SCART input No picture on the screen Check Source work or not Check Signal Source Reconnect Check connect Replace Cable/Wires Check Cable/ Wires Check SCART BD Replace SCART BD Replace main board Hisense Confidential - 34 -...

  • Page 35: Other Problems

    LCD TV Service Manual 7.8 Other problems Please check the following list prior to calling The Electronics Service Centre for assistance. Hisense Confidential - 35 -...
  • Page 36 LCD TV Service Manual Hisense Confidential - 36 -...

  • Page 37: Explode View

    LCD TV Service Manual 8. Explode View 9. Schematic circuit diagram Hisense Confidential - 37 -...
  • Page 39 MT5331RAV1.7 5VCC 5VCC MT5330 (PBGA) REFERENCE DESIGN - 2 LAYERS History DATE R1792 R1792 R-RESC1608N-HX R-RESC1608N-HX PW_LED R-RESC1608N-HX R-RESC1608N-HX RA-V1 INITIAL VERSION 2006/07/05 OIRI R1793 R1793 PWR_IR OPCTRL5 Q104 Q104 RA-V1.2 ADDED DVB-CI INTERFACE 2006/09/20 R-RESC1608N-HX R-RESC1608N-HX CB1098 CB1098 CE611 CE611 2N3904 2N3904...
  • Page 40 or +12V AP1513/SOP-8 AP1513/SOP-8 R1799 150/2W R1799 150/2W 510mA R-SOIC08N-1.270-6.00-HX R-SOIC08N-1.270-6.00-HX DV12 +12V +5V_TUNER 27uH/POWER CHOKE 27uH/POWER CHOKE CB131 CB131 R1800 5.1/1W R1800 5.1/1W CB25 CB25 4.7uF 4.7uF L1 FB L1 FB R-SLF10145-HX R-SLF10145-HX 0.1uF 0.1uF NS/100nF NS/100nF NS/100nF NS/100nF R-CAPC2012N-HX R-CAPC2012N-HX CB225...
  • Page 41 +5V_TUNER +5V_TUNER +5V_TUNER +3V3_TUNER +3V3_TUNER 120-0805/NC 120-0805/NC R-INDC2012N-HX R-INDC2012N-HX 1,2,7,11,14 0.1uF/NC 0.1uF/NC 10uF/16V/NC 10uF/16V/NC R1801 R1801 R-CAPC1608N-HX R-CAPC1608N-HX R-CAPC2012N-HX R-CAPC2012N-HX 4.7K 4.7K 4.7K 4.7K 1,2,4,5,6,7,8,9,10,11,12,13,14 R-RESC1608N-HX R-RESC1608N-HX R-RESC1608N-HX R-RESC1608N-HX +5V_TUNER TUNER_SDAO TUNER_SDA1 120-0805 120-0805 R-INDC2012N-HX R-INDC2012N-HX 0.1uF 0.1uF 10uF/16V 10uF/16V R-CAPC1608N-HX R-CAPC1608N-HX R-CAPC2012N-HX...
  • Page 42 FAT_IN- R-CAPC1608N-HX R-CAPC1608N-HX FAT_IN+ R-CAPC1608N-HX R-CAPC1608N-HX NS/220nH NS/220nH +5V_TUNER +5V_TUNER R-INDC2012N-HX R-INDC2012N-HX DV33_DM DV33_DM DV18_DM DV18_DM 1,2,3,5,6,7,8,9,10,11,12,13,14 NS/47pF NS/47pF R-CAPC1608N-HX R-CAPC1608N-HX 0.1uF 0.1uF 0.1uF 0.1uF GLOBAL SIGNAL R-CAPC1608N-HX R-CAPC1608N-HX R-CAPC1608N-HX R-CAPC1608N-HX MT5131_IF_AGC IF_AGC 10uF 10uF R-RESC1608N-HX R-RESC1608N-HX 47nF 47nF R-CAPC2012N-HX R-CAPC2012N-HX R-CAPC1608N-HX R-CAPC1608N-HX...
  • Page 43 R-RESC1608N-HX R-RESC1608N-HX R-RESC1608N-HX R-RESC1608N-HX R50 10K R50 10K OPWRSB OPWRSB GPIO_79 ORESET# ORESET# GPIO_80 OPCTRL0 OPCTRL0 OPCTRL1 OPCTRL1 OPCTRL2 RESERVE HEAT-SINK SPACE OPCTRL2 OPCTRL3 OPCTRL3 OPCTRL4 AV33 OPCTRL4 OPCTRL5 OPCTRL5 DV26_DDR DV33 DV33 2,6,7,12,14 DV33 AV33 OPCTRL7 1,2,6 AV33 OPCTRL7 DV26_DDR 2,6,8 DV26_DDR...
  • Page 44 DV33SB AV12 AV12 AV33 AV33 DV33 2,5,7,12,14 DV33 AVCC_SRV AVCC_HDMIPLL AVCC_ADCPLL AVCC_VAD0 AVCC_AADC AV33 1,2,5 AV33 150uH 150uH DV26_DDR 2,5,8 DV26_DDR CB50 CB50 CB51 CB51 CB52 CB52 R-INDC1608N-HX R-INDC1608N-HX CB53 CB53 CB54 CB54 R-INDC1608N-HX R-INDC1608N-HX CB55 CB55 AV15 AV15 0.1uF 0.1uF 0.1uF 0.1uF...
  • Page 45 DV33SB DV33 DV33 820K 820K CE44 CE44 R-RESC1608N-HX R-RESC1608N-HX NS/4.7K NS/4.7K 220uF/16V 220uF/16V R-RESC1608N-HX R-RESC1608N-HX R-RESC1608N-HX R-RESC1608N-HX M-ED8.0-05.0-HX M-ED8.0-05.0-HX ORESET# 10Kx4 10Kx4 R-RESC1608N-HX R-RESC1608N-HX OXTALI OXTALO GPIO_0 R-RESC1608N-HX R-RESC1608N-HX R-RESCA3216-8N-HX R-RESCA3216-8N-HX 1,2,3,11,14 2N3904 2N3904 27MHz 27MHz 5VCC +5VCC R-RESC1608N-HX R-RESC1608N-HX R-SOT3N-0.95-2.80-HX R-SOT3N-0.95-2.80-HX R-CRYC1405N-HX...
  • Page 46 DV13_DDR DV13_DDR DV26_DDR DV26_DDR RRAS# MEM_RAS# MEM_DQM0 75x4 75x4 RDQ0 47x4 47x4 MEM_DQ0 75x4 75x4 R-RESCA3216-8N-HX R-RESCA3216-8N-HX RCAS# MEM_CAS# MEM_WE# RDQ1 MEM_DQ1 R-RESCA3216-8N-HX R-RESCA3216-8N-HX RWE# MEM_WE# MEM_CAS# RDQ2 MEM_DQ2 RA13 MEM_ADDR13 MEM_RAS# RDQ3 R-RESCA3216-8N-HX R-RESCA3216-8N-HX R-RESCA3216-8N-HX R-RESCA3216-8N-HX MEM_DQ3 MEM_DQ0 MEM_DQ15 DQ15 22x4 22x4...
  • Page 47 NEARLY YPBPR CONNECTOR NEARLY MT5331 M-AV6-W-AVY-HX M-AV6-W-AVY-HX R171 R171 SOY0 AV_IN R-RESC1608N-HX R-RESC1608N-HX R-CAPC1608N-HX R-CAPC1608N-HX Y0_IN R172 R172 YPBPR0R_IN AVL_IN FB/80OHM FB/80OHM 10nF 10nF R-INDC1608N-HX R-INDC1608N-HX R-RESC1608N-HX R-RESC1608N-HX R-CAPC1608N-HX R-CAPC1608N-HX AVR_IN D188 D188 R173 R173 R174 R174 15pF 15pF NS/10nF NS/10nF NS/EZJZ0V800AA NS/EZJZ0V800AA...
  • Page 48 SCT1_AUR_OUT SCT1_AUR_IN SCT1_AUL_OUT SCT1_SOY R269 R269 SCT1_G_IN SCT1_G_IN SCT1_R_IN SCT1_R_IN SCT1_AUL_IN R-RESC1608N-HX R-RESC1608N-HX SCT1_B_IN SCT1_FS_IN SOY1 SOY1 R1820 R1820 R273 R273 C144 C144 15pF 15pF 0_NC 0_NC R1821 R1821 R-RESC1608N-HX R-RESC1608N-HX R-CAPC1608N-HX R-CAPC1608N-HX LOPIVA16G05A LOPIVA16G05A 15pF 15pF LOPIVA16G05A LOPIVA16G05A R-RESC1608N-HX R-RESC1608N-HX R-CAPC1608N-HX R-CAPC1608N-HX...
  • Page 49 1,2,3,7,14 NEARLY VGA CONNECTOR NEARLY MT5370 AGND_AFE 1,2,3,4,5,6,7,8,9,10,12,13,14 AGND_AFE R200 R200 R-RESC1608N-HX R-RESC1608N-HX R-CAPC1608N-HX R-CAPC1608N-HX R201 R201 C100 C100 RED_GND 10nF 10nF R-RESC1608N-HX R-RESC1608N-HX R-CAPC1608N-HX R-CAPC1608N-HX GRN_GND 1N4148 1N4148 VGASDA_IN R-SOD3718N-HX R-SOD3718N-HX R202 R202 C101 C101 BLU_GND R-RESC1608N-HX R-RESC1608N-HX R-CAPC1608N-HX R-CAPC1608N-HX HSYNC# R-INDC1608N-HX...
  • Page 50 R1815 R1815 OPCTRL1 NS/1K NS/1K R458 R458 R-RESC1608N-HX R-RESC1608N-HX C115 C115 +12V R1812 R1812 OPCTRL7 GPIO_19 1,2,10,13 +12V NS/1K NS/1K R1813 R1813 VMIDDAC C116 C116 DV33 R370 R370 R-RESC1608N-HX R-RESC1608N-HX 2,5,6,7,14 DV33 R313 R313 R-RESC1608N-HX R-RESC1608N-HX MUTE# OFF_MUTE Q107 Q107 R-RESC1608N-HX R-RESC1608N-HX VGAR_IN...
  • Page 51 +12V +12VAMP R1782 R1782 R1783 R1783 +12V MUTE_Audio MUTE_AUDIO 1,2,10,12 +12V DV33 2,5,6,7,12,14 DV33 R1784 R1784 MUTE_Pop 1,2,3,4,5,6,7,8,9,10,11,12,14 8.2K 8.2K AGND_AFE 2N3904 2N3904 1N4148 1N4148 2N3904 2N3904 1,2,3,4,5,6,7,8,9,10,11,12,14 AGND_AFE MUTE MUTEC Q102 Q102 MUTE Q103 Q103 R1785 R1785 R-SOT3N-0.95-2.80-HX R-SOT3N-0.95-2.80-HX R1786 R1786 R-SOT3N-0.95-2.80-HX...
  • Page 52 PDD3 PDCD1# CD1# PDD4 PODOUTDATA3 DV33 DV33 PDD5 PODOUTDATA4 PDD6 PODOUTDATA5 PDA14 PDA18 PDD7 PODOUTDATA6 PDA15 PDA14POD PDA19 PODINDATA0 PDCE1# PODOUTDATA7 PDA16 PODINCLK PDA20 PODINDATA1 CE1# PDA10 PDCE2# PDA17 PODINVALID PDA21 PODINDATA2 CE2# PDOE# PDVS1# TS0INSYNC PODINSYNC PDA22 PODINDATA3 RFSH PDA11 PDIORD# TS0INVALID...

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