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Hisense LCD3703EU Service Manual
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Hisense LCD3703EU Service Manual

Hisense LCD3703EU Service Manual

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LCD3703EU
CHASSIS SERVICE MANUAL
(V1.0)
JUL. 13 2005
INNOVATION IS LIFE

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Summary of Contents for Hisense LCD3703EU

  • Page 1 LCD3703EU CHASSIS SERVICE MANUAL (V1.0) JUL. 13 2005 INNOVATION IS LIFE...

  • Page 2: Table Of Contents

    CONTENTS • SAFETY PRECAUTION • PRODUCT SAFETY NOTICE • PRODUCT FUNCTION • LCD PANEL SPEC. • BLOCK DIAGRAM • CIRUIT DIAGRAM • SOFTWARE UPDATING • FAQ • SPARE PARTS INNOVATION IS LIFE...

  • Page 3: Safety Precaution

    SAFETY PRECAUTION WARNING: Service should not be attempted by anyone unfamiliar with the necessary precaution on this receiver.The following are the necessary precaution to be observed before serving this chassis. 1.Since the power supply circuit of this receiver is directly connected to the AC power line ,an Isolation transformer should be used during any dynamic service to avoid possible shock hazard.

  • Page 4: Product Safety Notice

    PRODUCT SAFETY NOTICE Many electrical and mechanical parts in the chassis have special safety-related characteristics. These characteristics are often passed unnoticed by a visual inspe- ction. When replacement parts are required, be sure the service technician uses replacement parts specified by us that have the same characteristics as the original part.

  • Page 5: Productfunction

    PRODUCTFUNCTION INNOVATION IS LIFE - Back connections...
  • Page 6 PRODUCT FUNCTION Note: The above figures are for reference only, please refer to the actual units to determine their appearance. INNOVATION IS LIFE...
  • Page 7 PRODUCT FUNCTION LCD-TV features • Multimedia - TV receiver, Video monitor and PC display, all in one. • Wider viewing angle, over 176 view angle • Digital display device - truthfully reproducing the images, without distortion or blurring, irrespective of magnetic or geomagnetic effect. •...

  • Page 8: Lcd Panel Spec

    LCD PANEL SPEC. General Description － The LC370W01 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent Lamp(CCFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally black mode. This TFT-LCD has a 37.02 inch diagonally measured active display area with WXGA resolution (768 vertical by 1366 horizontal pixel array).
  • Page 9 LCD PANEL SPEC. General Features Active Screen Size 37.02 inches diagonal Outline Dimension 960.0(H) x 111.0(V) x 590.0(D) mm(Typ.) Pixel Pitch 0.42675(H) x 0.42675(W) 1366 horiz. By 768 vert. Pixels RGB strip Pixel Format arrangement Color Depth 16.7M colors Luminance, White 500 cd/m (Center 1 points typ.) Contrast Ratio...

  • Page 10: Block Diagram

    BLOCK DIAGRAM Chassis Block Diagram LCD PANEL To lcd panel lvds connector LVDS CONNECTOR Power connector LCD PANEL POWER SUPPLY IS +12V RS232 +5V standby +12V(CHECK POINT) +5V/M DVI-D MAIN BOARD INPUT Power conntrol Bri. control POWER SUPPLY +24V D-SUB 15PIN POWER SUPPLY +24V I/O CONTROL...
  • Page 11 BLOCK DIAGRAM VIDEO Processing part K4D263238F ST232 DDR MEMORY RS232 N018 29LV040B 24LC21 EEPROM N019 R/G/B N012 Pb/Cb PI5V330 GM1601 VIDEO SWITCH Pr/Cr FLI2310 HY57v6 Video Processing LVDS 43220 Build in MCU 8 BIT ITU656 ANT.IN VPC3230D FLI2310 VIDEO VIDEO & H/V N015 S-VHS DECODE...
  • Page 12 BLOCK DIAGRAM AUDIO Processing part TDA2822M Earphone AMP. N503 SCART AUDIO OUTPUT 5W+5W AV AUDIO MSP3410G TDA7266B PC AUDIO AUDIO Processing AMPLIFIER N506 N505 TV AUDIO +15V Main IIC BUS TDA7053AT Earphone AMP. N504 POWER part LM1117-3.3 AC 230V +3.3V +15V DC/DC FOR GM1601...
  • Page 13 CIRCUIT DIAGRAM Main Board:Graphic input Part +5V_M +5V_ANG VGA_SDA VGA_SCL L001 DVI_SDA 220uH DVI_SCL R003 R004 C007 10uF DVI_5V XS001 RX2+ RX2+ RX0- RX2- RX2- RX0- RX2- RX2- N001 R001 R002 RX1- RX1- 24LC21 R059 RX0+ RX2+ RX0+ RX2+ 3.3K RX1+ RX1+ RX1+...
  • Page 14 CIRCUIT DIAGRAM Main Board:Video decode Part +3.3V_M L017 STPB3216-121PT +3.3V_M +3.3V_M L015 L016 C070 C071 C068 STPB3216-121PT STPB3216-121PT 10uF C069 0.1uF C067 C075 C074 C073 C076 22uF 1.5nF 47nF 0.1uF 0.1uF 0.1uF 47uF R075 0_NC +5V_V C048 L012 STPB3216-121PT R214 C026 390pF VVOUT...
  • Page 15 CIRCUIT DIAGRAM Main Board: PIP Video decode Part +3.3V_M L026 L021 STPB3216-121PT STPB3216-121PT +3.3V_M +3.3V_M L023 C121 C120 STPB3216-121PT C122 C123 0.1uF C124 C125 C126 C082 C083 10uF 22uF 47uF 1.5nF 47nF 0.1uF 0.1uF 0.1uF +5V_P C108 L022 STPB3216-121PT VVOUT C089 390pF L019...
  • Page 16 CIRCUIT DIAGRAM Main Board: FLI2310 part Z005 DEC1Y[7..0] DEC1Y0 R180 C257 DEC1Y1 22uF DEC1Y2 C260 13.5MHZ C259 C255 注 意 ： 1、2310的 出 格 式 和 IIC地 址 DEC1Y3 33pF 33pF 0.1uF R171 R184 R183 R182 DEC1Y4 R172 DEC1Y5 C256 R173 DEC1Y6 470K...
  • Page 17 CIRCUIT DIAGRAM Main Board:GM1601 Part +2.5V_DDR +1.8V_CORE C131 C132 C148 C147 22uF 10uF 47uF 10uF C133 C134 C135 C136 C137 C138 C139 C140 C141 C142 C143 C144 C145 C146 C149 C150 C151 C152 C153 C154 C155 C156 C157 C158 C159 C160 C161 C162...
  • Page 18 CIRCUIT DIAGRAM Main Board:Frame & Memory Part N019 OCMADDR18 OCMDATA7 OCMADDR17 OCMDATA6 OCMADDR16 OCMDATA5 OCMADDR15 OCMDATA4 OCMADDR14 OCMDATA3 Sock et for a×8 flash(64/128/256/512k ) OCMADDR13 OCMDATA2 and PROMJET memory Emulator OCMADDR12 OCMDATA1 +2.5V_DDR OCMADDR11 OCMDATA0 OCMADDR10 OCMADDR9 OCMADDR8 /ROM_CS OCMADDR7 /OCM_RE OCMADDR6 /OCM_WE...
  • Page 19 CIRCUIT DIAGRAM Main Board:Power part +5V_M_1 XP016 +5V_M +5V_M_1 +5V_M L040 R189 +5V_M +5V_M N021 C340 C341 +5V_M_2 +5V_M N020 +3.3V_M VD018 LM1117DTX-1.8 +1.8V_ADC 100uF 2.7K STPB3216-121PT 0.1uF VD017 AIC1084 +3.3V_ADC L041 L047 C344 L048 CON4 VOUT VOUT 0.1uF RB160M-30TR STPB3216-121PT STPB3216-121PT_NC STPB3216-121PT_NC...
  • Page 20 CIRCUIT DIAGRAM Tuner Board: sound Processing Part A500 JS-6B1/122/CP Designator8 Designator9 Designator7 Designator6 Designator12 Designator13 Designator14 Designator15 comment comment comment comment A5V_T A5V_T L513 L514 MONO_P 33U/CP 33U/CP R524 R579 SIF_P 75R/CP 0R/CP C555 C557 R576 C554 C556 C558 C559 C560 C566 C568...
  • Page 21 CIRCUIT DIAGRAM Tuner Board: AV SWITCH Part Designator6 Designator7 Designator8 Designator9 XP513 SDA 5V SVIN1_Y SDA_5V SCL 5V SVIN1_C SCL_5V R659 AV+9V C634 C635 100pF R660 220uF/16V C636 100pF SCFB SCFB V506 XP509 SC1_VO SC1_VIN VIDEO OUT Tele_V_out R595 MMST3904 C625 C637 47uF/16V...
  • Page 22 CIRCUIT DIAGRAM Tuner Board: Teletext decode Part R680 L530 C715 Tele_V_out 8.2uH 100n R681 R682 C714 R683 R685 150p 75_NC 2.5V C724 C725 C723 C726 100n N512 100n 100n 100n N513 VDD3.3 N514 3.3V LM1117 C716 VDD3.3 +5VA XTAL2 Z501 VDD3.3 3.3V 6MHZ...
  • Page 23 CIRCUIT DIAGRAM Power Board DE017 (E MC) RU3A LE003 DE501 CE502 RE502 (E MC) QE002 QE001 DE004 FML-36S 4A/100uH TE002 FMB-26L 2200u/35V FQA24N50 TE001 FQA24N50 (E MC) 12V/3.5A RE008 CE016 RE016 RE010 BE001 CE020 RE020 CE501A RE017 NE552 (E MC) 10/1W 68K/2W 1n/2KV...

  • Page 24: Software Updating

    SOFTWARE UPDATING Updating CABLE - You can update our LCD’s software through a special RS232 cable(show as below) 9 PIN D-SUB FEMALE 3.5mm Stereo Earphone plug - This RS232 cable includes a 9 PIN D-SUB FEMALE,a 3.5mm Stereo Earphone plug and 3 wires Built the cable as show INNOVATION IS LIFE...
  • Page 25 SOFTWARE UPDATING Updating Steps: 1. Gprobe5 is a communication software for update fireware from PC to our LCD. Double-click the Gprobe5.exe to install it. If the installation is completed, The Gprobe5 icon will be produced on the desktop. INNOVATION IS LIFE...
  • Page 26 SOFTWARE UPDATING Updating Steps: 2. When running the Gprobe5 for the first time, there are some parameter need to be set. Select the OPTIONS item form the menu bar of Gprobe5, then click the Connection Setup item to set up serial communication. Devices : Serial Protocol : SERIAL1 Port...
  • Page 27 SOFTWARE UPDATING Updating Steps: 3. Connecting the cable: Connecting the cable’s 9 pin serial interface(female) to a computer, and connect the cable’s headphone plug to RS232 terminal on the side of the LCD TV. INNOVATION IS LIFE...
  • Page 28 SOFTWARE UPDATING Updating Steps: 4. Unzip the firmware file firmware.zip to C:\ INNOVATION IS LIFE...
  • Page 29 SOFTWARE UPDATING Updating Steps: 5. Open the folder which the firmware is in, open the file Commond.txt, copy the content in it. (batch C:\gm1601FW_1M\FlashROM_LCD3703EU.txt ) 6. Run the Gprobe5 and turn on the LCD TV, copy the content in command.txt to the command line and touch the enter key, the updating is executing.
  • Page 30 SOFTWARE UPDATING Updating Steps: 7. When the updating finishes,restart(turn off and turn on)the LCD,then the LCD will work with a new version of firmware.\ Note: Don’t turn off the LCD in the updating process! INNOVATION IS LIFE...

  • Page 31: Faq

    1、Turn on the TV,The LED is red, no display on screen - pls replace the main board or updating the software.(the software is wrong) 2、Turn on the TV,The LED is blue, but no picture and no sound - you should to change the tuner board 3、When turn on the TV, you can hear the “ZI ZI”...

  • Page 32: Spare Parts

    SPARE PARTS MODEL:LCD3703EU PART NUMBER SAP NO. REMARK RSAG2.908.590-2 105768 MAIN BOARD SOUND BOARD RSAG2.908.606 105770 POWER BOARD RSAG2.908.523-1 105772 E/RSR8.865.1728 1023639 FRONT COVER RSAG6.179.062\W9套B2(不罩光) 106496 BACK COVER RSAG6.170.058 106173 REMOTE COTROL EN-20515B 1023570 RSAG6.121.026 1020715 底座组件 RSAG6.162.015 1020716 壁挂支架...