Haier L20AV6-A0 Service Manual

Lcd tv 15”/17”/20”
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SERVICE MENUAL
FOR LCD TV 15"/17"/20"
TFT-LCD TV/MONITOR
Haier Group

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Table of Contents
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Summary of Contents for Haier L20AV6-A0

  • Page 1 SERVICE MENUAL FOR LCD TV 15”/17”/20” TFT-LCD TV/MONITOR Haier Group...
  • Page 2: Table Of Contents

    Content CONTENTS ---------------------------------------------------------------------------- Main Unit Description--------------------------------------------------------------- Features--------------------------------------------------------------------------------- Warning and Cautions-------------------------------------------------------------- Replacement of Memory IC------------------------------------------------------- Net Dimension------------------------------------------------------------------------- Remote Controller Functions---------------------------------------------------- Principle ICS --------------------------------------------------------------------- Block Diagram------------------------------------------------------------------------ Exploded View------------------------------------------------------------------------ List of Parts---------------------------------------------------------------------------- Trouble Shooting--------------------------------------------------------------------...
  • Page 3: Main Unit Description

    2.Main Unit Description Control Panel Function 1. MENU Press to select the main menu 2. VOL- Volume down / Left orientation to adjust the item 3. VOL+ Volume up / Right orientation to adjust the item/Press to enter the submenu. 4.
  • Page 5: Features

    3.Features Model Functions L20AV6-A0 L17LV6-A1 L15SV6-A0 20inch 15inch Screen size 17inch Aspect ratio 15:9 640×480 1280×1024 Resolution 1280×768 350cd/m2 250cd/m2 Brightness 450cd/m2 400:1 450:1 400:1 Contrast(Darkroom) Response time(ms) PAL/SECAM PAL/SECAM Color system PAL/SECAM NO.of preset channels Picture mode Angel of view...
  • Page 6 Model Functions L20AV6-A0 L17LV6-A1 L15SV6-A0 TV in D-SUB jack DVI socket SCARTsocket Ear-Phone Out TELETEXT Semitransparent menu ZOOM 16:9 mode Child Lock Quick View NO. of built-in speakers NO. of outer speakers Audio output 2*1.5 2*1.5 power(Built-in)(W) 2*1.5 Audio output 2*1.5...
  • Page 7: Warnings And Cautions

    4.Warnings and Cautions Warning High voltages are used in the operation of this product. Do not romove the cabinet back from your set. Refer servicing to qualified service personnel. Warning To prevent fire or electrical shock hazard, Do not expose the main unit to rain or moisture.
  • Page 8 Caution Never stand on, lean on, push suddenly the product or its stand. You should pay special attention to children to children. Caution Do not place the main unit on an unstable cart stand, shelf or table. Serious injury to an individual, and damage to the television, may result if it should fall.
  • Page 9: Replacement Of Memory Ic

    5.REPLACEMENT OF MEMORY IC 1. MEMORY IC. This LCD TV uses memory IC. In the memory IC are memorized data for correctly operating the video and sound circuits. When replacing memory IC, be sure to use IC written with the initial value of data. 2.
  • Page 10: Net Dimension

    6.Net Dimension 1.L20AV6-A0 2.L17LV6-A1...
  • Page 11 3.L15SV6-A0...
  • Page 12: Remote Controller Functions

    7.Remote Controller Functions When using the remote control, aim it towards the remote sensor on the TV : Illustration of the keys on the remote control Power Power supply switch M U TE M U TE DISPLAY Display current input signal information TV channel number select SLEEP Set time to change the TV into the standby status after a...
  • Page 13 6. Ⅰ/Ⅱ NICAM/A2 Stereo select EXIT Q.VIEW Quick TV channel switch(return to the last channel) VOL- Volume down / Left orientation to adjust the item in the OSD VOL+ Volume up / Right orientation to adjust the item/Press to enter the submenu. 10.
  • Page 14 Grounding Ensure that you connect the grounding / earth wire to prevent possibleelectric shock. If grounding methods are not possible, have a qualifiedelectrician install a separate circuit breaker. Do not try to ground the unit by connecting it to telephone wires, lightening rods, or gas pipes.
  • Page 15: Principle Ics

    8.Principle ICS 1. Uoc3 Function:TV signal processor with Teletext and Nicam...
  • Page 18 2. NT68521 Function: Scaler...
  • Page 21 3. SM5964(PLCC) Function: MCU...
  • Page 22 4. TPA1517NE Function: Audio power amplifier...
  • Page 23: Block Diagram

    9. Block Diagram...
  • Page 24: Exploded View

    10.Exploded View PARTS NAME Front Frame LCD Screen LCD Module Shield Borad LCD Screen Whole Engine Loudhailer Rear Cover Bracket Key Board Bracket...
  • Page 25: List Of Parts

    11.List Of Parts 1.L20AV6-A0 Material Code PARTS NAME NUM Material Code PARTS NAME DC0MX0E1500 L20AV6-A0 0090100859 Metal of Base board 0091802127 20”main board subassembly 0090600256 screw 0091802128 Control pannel subassembly 0090100863 LG bracket 0091802129 Remote board subassembly 0094009106 POWER adaptor...
  • Page 26 0094014594 Control board subassembly 0090600074 Screw 0090808933 Front-frame subassembly 0090600249 Screw 0090804324 LCD screen 0090600012 Accuse-self screw 0094010420 Loudhailer 0090800020 Metal wire 0090207341 Front-frame 0090402783 Connecting wire for LCD 0090206494 0090402274 Left Net cloth Connecting wire for speaker 0090206495 Right Net cloth 0094006633 Background lightdriving board 0090206490...
  • Page 27: Trouble Shooting

    12.Trouble Shooting 1. Power supply Trouble 2. Display trouble 2.1 Exceptional screen...
  • Page 28 2.2 White screen 2.3 Black screen...
  • Page 29 3. Audio Trouble 4. Function Touble 4.1 TV-1...
  • Page 30 4.1 TV-2 4.3 PC...
  • Page 31 4.4 SCART RGB, SCART Video, S-Video, AV...
  • Page 32 Sincere forever Tel:86-532-88938356...

This manual is also suitable for:

L17lv6-a1L15sv6-a0

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