Daewoo DLA-32H1 Service Manual
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Daewoo DLA-32H1 Service Manual

Daewoo DLA-32H1 Service Manual

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DAEWOO
MODELO: DLA-32H1
Chassis： MT5380
Product Type: Televisión de 32" LCD
Ver 1.0
Hisense Electric Co.，Ltd.
Apr. 2008

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Summary of Contents for Daewoo DLA-32H1

  • Page 1 DAEWOO MODELO: DLA-32H1 Chassis： MT5380 Product Type: Televisión de 32” LCD Ver 1.0 Hisense Electric Co.，Ltd. Apr. 2008...

  • Page 2: Table Of Contents

    LCD TV Service Manual Contents Contents..................................- 2 - Service Manual ................................- 3 - 1. Precautions and notices.............................- 3 - 1.1 Warning..............................- 4 - 1.2 Notes...............................- 7 - 2. Product Function Specifications ........................- 10 - 2.1 Product Function...........................- 10 - 2.2 Specifications............................- 13 - 3.

  • Page 3: Service Manual

    LCD TV Service Manual Service Manual 1. Precautions and notices BEFORE SERVICING THE LCD TV, READ THE SAFETY PRECAUTIONS IN THIS 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.

  • Page 4: Warning

    LCD TV Service Manual trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way. Consequently, Hisense has 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 LCD TV Service Manual 1.1.2. 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 LCD TV Service Manual 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.

  • Page 7: Notes

    LCD TV Service Manual (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 LCD TV Service Manual 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 been turned off. • While the main power is on, do not touch any parts or circuits other than the ones specified.
  • Page 9 LCD TV Service Manual 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 Function Specifications

    LCD TV Service Manual 2. Product Function Specifications 2.1 Product Function Front Cabinet Back Cabinet Hisense Confidential - 10 -...
  • Page 11 LCD TV Service Manual Hisense Confidential - 11 -...
  • Page 12 LCD TV Service Manual Hisense Confidential - 12 -...

  • Page 13: Specifications

    LCD TV Service Manual 2.2 Specifications Hisense Confidential - 13 -...

  • Page 14: Lcd Panel Spec

    LCD TV Service Manual NOTE: Specifications and design are subject to possible modifications without notice due to improvements。 3. LCD Panel Spec 3.1 General Description AX080D002F is a 31.5” TFT Liquid Crystal Display module with 16-EEFL Backlight unit and a single LVDS interface. This module supports 1366 x 768 WXGA format and can display 16.7M colors (8-bits colors).

  • Page 15: General Features

    LCD TV Service Manual 3.2 General Features Hisense Confidential - 15 -...

  • Page 16: Chassis Layout And Overall Wiring Diagrams

    LCD TV Service Manual 4. Chassis Layout and Overall Wiring Diagrams 4.1 Boards and Chassis Layout TV(1) TV(5) TV(2) TV(4) TV(3) Description Part No Type/Model PCB/ Model TV(1) Main BD RSAG2.908.1230-4 116468 RSAG7.820.1276 TV(2) In/Out connector RSAG2.908.1291 116434 5RSAG7.820.1263 board TV(3) LED / IR Board 114175...

  • Page 17: Connectors

    LCD TV Service Manual 4.2 Connectors Main Board J1410 J703 J1411 J101 J901 J902 J801 J1201 Location No. Specification Description J901 Jack/FF-HX19-10\ROH LVDS signal between MB and panel J101 Jack/TJC10-14A\ROH Power from Power BD J1411 Jack/TJC10-3A\ROH Buttons (connect key BD and main BD) J1410 Jack/TJC10-5A\ROH IR, LED...

  • Page 18: Wires And Cables Overall Wiring Diagram(S)

    LCD TV Service Manual 4.3 Wires and Cables Overall Wiring Diagram(s) DESCRIPTION SPECIPICATION NOTE LVDS signal Connector/HX-0147\ROH Main BD J901<-->Panel +5V, +12V supply to Main BD Connector /TJC10T-14Y-200\ROH Main BD J101<-->Power BD XP812 Main Power Connector /TJC2-3Y-300-2\ROH Power Inlet-->Power BD XP801 Buttons Connector /TJC10T-3Y-800\ROH Main BD J1411<-->...

  • Page 19: Factory/Service Osd Menu And Adjustment

    LCD TV Service Manual 5. Factory/Service OSD Menu and Adjustment 5.1 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.
  • Page 20 LCD TV Service Manual c. Close the OSD menu after 5 seconds. 5.2.2 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”...

  • Page 21: Designer Menu(待小于数据)

    LCD TV Service Manual a. Select the item “Clear All”. b. Press VOL+ button to clear the EEPROM data. c. Close the OSD menu after 5 seconds. d. Restart the TV. 5.3 Designer Menu 5.3.1 Video Mode Standard： S-Video Component HDMI R Gain G Gain...
  • Page 22 LCD TV Service Manual B Gain 5.3.2 Video Curve: S-Video Component HDMI Bright Max Bright Min Bright Mid Contrast Contrast Min Contrast Mid Saturation 1000 1000 1000 1000 1000 1000 Saturation Saturation Hue Max 1000 1000 1000 1000 1000 1000 Hue Min Hue Mid 5.3.3 Picture Mode...

  • Page 23: Software Upgrading

    LCD TV Service Manual Contrast Movie Saturation ： 5.3.4 Volume Curve S-Video HDMI/component/VGA 0 Note：Set Downmix to “Lt/Rt”. 6. Software Upgrading The software is upgraded by a burning toll-MtkTool, which can burn the program file *.bin to the main board of the unit. 6.1 Get ready for upgrading 6.1.1 Install the driver Double click the icon...
  • Page 24 LCD TV Service Manual Select the default value, the driver will be installed step by step. 6.1.2 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. USB connector: to PC.
  • Page 25 LCD TV Service Manual Hisense Confidential - 25 -...

  • Page 26: Upgrading With The Mtktool

    LCD TV Service Manual 6.2 Upgrading with the MtkTool MTKtool is a green program needing no installation. It is saved in the folder . There are five folders/files in this folder altergether. The MtkTool using log is restored in the MtkLog folder. It records the running time and date whenever the tool is used.
  • Page 27 LCD TV Service Manual 4—Set the flash baud rate to 115200 as the below picture. 5—Click the browse button to select the *.bin file that will be updated. 6—Click the “start” button to update software. Select mode Communicate Flash Select *.bin of Flash chip port Baud Rate...
  • Page 28 LCD TV Service Manual Open “Device Manager” and find which port is connected with the TV. In above picture, COM2 is connected to the TV; so, select “COM2” in the MtkTool main interface. Select the right baud rate according to chip model. For this unit( chip model is MT538X), select 115200. Note: Where or not click the “Auto Set Flash Baud Rate”...
  • Page 29 LCD TV Service Manual Click “Browse” button, find the upgrading program file, and select it. Press “Upgrade” button and start upgrading. The following interface appears on the screen, indicating upgrading successfully. Hisense Confidential - 29 -...

  • Page 30: Troubleshooting

    LCD TV Service Manual 7. Troubleshooting 7.1 Troubleshooting for Remote Control Remote control does not work Try new batteries Replace battery Replace RC Replace remote control Check IR receiver Hisense Confidential - 30 - Change Led & IR board Replace Led & IR BD...

  • Page 31: 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 Replace main board Hisense Confidential - 31 -...

  • Page 32: Tv Won't Power On

    LCD TV Service Manual 7.3 TV won’t Power On TV won’t power on Make Sure Power Check Power source is live light? Inlet Replace BLUE Check Power Power Cord Cord Check/replace IR Only BD or Keypad one works Try Power on by Check signal RC and Button OSD?

  • Page 33: 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 Replace PSU Hisense Confidential - 33 -...

  • Page 34: 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 - 34 -...

  • Page 35: 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 - 35 -...

  • Page 36: Troubleshooting For Video/S-Video Input

    LCD TV Service Manual 7.7 Troubleshooting for Video/S-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 Hisense Confidential - 36 -...

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