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Acer AL2423 W Service Manual
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Acer AL2423 W Service Manual

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Acer AL2423 W
Service Guide
Service guide files and updates are available on the CSD web: for more
information,
Please refer to
http://csd.acer.com.tw/
100% Recycled Paper
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Summary of Contents for Acer AL2423 W

  • Page 1: Chapter 2 Operating Instrution

    All manuals and user guides at all-guides.com Acer AL2423 W Service Guide Service guide files and updates are available on the CSD web: for more information, Please refer to http://csd.acer.com.tw/ 100% Recycled Paper - 1 -...
  • Page 2 All manuals and user guides at all-guides.com Copyright Copyright © 2003 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Incorporated.
  • Page 3 All manuals and user guides at all-guides.com Conventions The following conventions are used in this manual: Screen messages Denotes actual messages that appear on screen Note Gives bits and pieces of additional information related to the current topic. Warning Alerts you to any damage that might result from doing or not doing specific actions.
  • Page 4 DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and service of customer machines.
  • Page 5 All manuals and user guides at all-guides.com WARNING: (FOR FCC CERTIFIED MODELS) NOTE: this equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 6 All manuals and user guides at all-guides.com PRECAUTIONS l Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, Swimming pool or in a wet basement. l Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance.
  • Page 7 All manuals and user guides at all-guides.com SPECIAL NOTES ON LCD MONITORS The following symptoms are normal with LCD monitor and do not indicate a problem. NOTES l Due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off the Power Switch and then turn it on again to make sure the flicker disappears.

  • Page 8: Table Of Contents

    All manuals and user guides at all-guides.com Table of contents Chapter 1 MONITOR FEATURE … … … … … … … … … … … … … … … … … … … … … … .9 Chapter 2 OPERATING INSTRUTION … … … … … … … … … … … … … … … … … … … … .21 1 Chapter 3 MACHINE ASSEMBLY …...

  • Page 9: Chapter 1 Monitor Feature

    All manuals and user guides at all-guides.com Chapter 1 Monitor Feature Driving system TFT Color LCD Size 24" wide Pixel pitch 0.270mm 178° 178° Viewable angle(H/V) LCD Panel Brightness Samsung : 500 cd/m (Typical) Contrast Ratio Samsung:1000:1 (Typical) Response time Samsung 6 ms Video Analog 0.7V / Digital TMDS...
  • Page 10 All manuals and user guides at all-guides.com Weight (Net/Gross) 7.0 kg / 10.7 kg Dimensions (W*H*D) 572 x 454.1 x 296.2 mm (with stand) Weight (N.W.) 8.5kg/12kg(OnlyAL2423Wh/AL2423Wr) Dimensions (W*H*D) 572 x 425.5 x 296.2 mm (with stand)(Only AL2423Wh/AL2423Wr) External Controls Switch * Power Switch * MENU / EXIT...
  • Page 11 All manuals and user guides at all-guides.com Timings The product has 34 memory modes in total. 26 modes are preset and 8 modes are user definable. MODE NO. RESOLUTION 720 x 400 640 x 480 640x480 640 x 480 Dot clock(MHz) 28.321 25.175 30.24...
  • Page 12 All manuals and user guides at all-guides.com 75Hz (75) 56.25 60Hz (60.316) 75Hz (75.000) V-Total (ms ) 13.333 (500 lines) 17.78(625 lines) 16.58 (628 lines) 13.333 (625lines) V-Sync ( ms ) 0.080 (3 lines) 0.06(2 lines) 0.106 (4 lines) 0.064 (3 lines) V-B-P (ms ) 0.427 (16 lines) 0.63(22 lines)
  • Page 13 All manuals and user guides at all-guides.com 60.02kHz 63.981kHz 79.976KHz 67.5 KHz H-Total ( us ) 16.66(1312 dots) 15.630 (1688 dots) 12.504 (1688 dots) 14.815(1600 dots) H-Sync ( us ) 1.22 (96 dots) 1.037 (112 dots) 1.067 (144 dots) 1.185(128 dots) H-B-P ( us ) 2.23 (176 dots) 2.296 (248 dots)
  • Page 14 All manuals and user guides at all-guides.com V-F-P ( ms ) 0.017 ( 1 line ) 0.013 ( 1 line ) 0.111 (5 lines) 0.063 (3 lines) SYNC. H/V + / + + / + + / + POLARITY SEP . SYNC HDTV MODE NO.
  • Page 15 All manuals and user guides at all-guides.com H-Sync ( us ) 1.203 ( 176 dots) 3.319 (112 dots) H-B-P ( us ) 1.915 (280 dots) 3.319 (112 dots) H-Active ( us ) 11.487 (1680 dots) 25.126 (848 dots) H-F-P ( us ) 0.711 (104 dots) 0.474 (16 dots) 59.954 Hz...
  • Page 16 Monitor Block Diagram All manuals and user guides at all-guides.com Page 4 Page 5 Page 6 03. Graphic Inputs ADO_R ADO_R ADO_L ADO_L RED+ MUTE RED+ RED+ MUTE MUTE RED- RED- RED- GREEN+ GREEN+ GREEN+ ADO_C ADO_C GREEN- GREEN- GREEN- BLUE+ Audio BLUE+...
  • Page 17 All manuals and user guides at all-guides.com PCB CONDUCTOR VIEW Main Board - 17 -...
  • Page 18 All manuals and user guides at all-guides.com - 18 -...
  • Page 19 All manuals and user guides at all-guides.com Power Board - 19-...
  • Page 20 All manuals and user guides at all-guides.com Button board - 20 -...
  • Page 21 All manuals and user guides at all-guides.com Chapter 2 OPERATING INSTRUCTIONS Front Panel Definition This Section defines the front panel User Interface for Led Indictor and Key function. Key Definition: There are five keys defined in this system and described bellows. External controls If the OSD is active, press Auto to exit a selection in the OSD.
  • Page 22 All manuals and user guides at all-guides.com OSD menu Contrast: This adjusts dark and light shades of color relative to each other. Brightness: This adjusts the brightness of the picture on the screen. Focus: This removes any horizontal distortion and makes the picture clear and sharp.
  • Page 23 All manuals and user guides at all-guides.com Language for Asia: Select the OSD menu language. Select from English, German, Spanish, Simplified Chinese, Traditional Chinese, French, Italian, and Japanese. Language for EMEA: Select the OSD menu language. Select from English, German, Spanish, Russia, Nederlands, French, Italian, and Finnish.
  • Page 24 All manuals and user guides at all-guides.com Information: This shows information about the screen. Reset: Resets all settings to default levels. Exit: Exit from OSD.
  • Page 25 All manuals and user guides at all-guides.com Factory Mode You can entry into factory mode when press "Auto" and then press"Power" Key(LED light),it is successful if Power LED Light is amber. Factory1 Adjustment Reset: Resets all settings to default levels. Factory 2 Adjustment This page only visible in factory mode AUTO BURN :...
  • Page 26 All manuals and user guides at all-guides.com LED Definition The system equips one dual color (blue/amber) led to indict system status and defined as bellows : LED Color System Status Green System in normal operation mode Amber System in power-saving mode Dark System in power-off mode LOGO :...
  • Page 27 All manuals and user guides at all-guides.com THIS MONITOR WILL APPEAR TO BE NON- FUNCTIONAL IF THERE IS NO VIDEO INPUT SIGNAL. IN ORDER FOR THIS MONITOR TO OPERATE PROPERLY, THERE MUST BE A VIDEO INPUT SIGNAL. This monitor meets the Green monitor standards as set by the Video Electronics Standards Association(VESA) and/or the United States Environmental Protection Agency (EPA) and The Swedish Confederation Employees (NUTEK).

  • Page 28: Chapter 3 Machine Assembly

    All manuals and user guides at all-guides.com Chapter 3 Machine assembly This chapter contains step-by-step procedures on how to assemble the monitor for maintenance and trouble shooting NOTE : 1. The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding to avoid mismatch when putting back the components.
  • Page 29 All manuals and user guides at all-guides.com Real View : Top View : - 29 -...
  • Page 30 All manuals and user guides at all-guides.com Side View : ( unit : mm ) - 30 -...
  • Page 31 All manuals and user guides at all-guides.com Exploded view Assembly process Picture Description 1. [GET PCB SHIELD AND PUT IT IN THE MIDDLE OF CONVEYER] 1. [GETM/B ANDM/B CABLE AND PUT ON TOOL ,THEN INSERT INV CABLE ININVERTER/B CONNECTOR. ] 1.
  • Page 32 All manuals and user guides at all-guides.com 1.[FASTEN 3*PCS SCREW(F3*6-T) IN OWER/B] 2. [FASTEN 1*PCS SCREW(M4.0*8-B) IN INV/B] 3. [GET INV MODULE AND PUT ON LINE] 1.[GET INVETOR SUPPORN AND INSERT INV MODULE] 2.[STICK MYLAR 1PCS ON THE POWER/B AS PICTURE SHOWS] 3.[GET CABEL INV/B AND INSERT INV MLDULE ] 1.
  • Page 33 All manuals and user guides at all-guides.com 1. [TEAR OFF THE INCOMING TAPE] 2. [GET PANEL AND PUT IT ON THE CONVEYER] 1. [STICK CODE*1PCS ON THE APPOINTED PLACE OF PANEL] 2. GET TRAVEL CARD AND SCAN IT AND PANEL CODE] 3.
  • Page 34 All manuals and user guides at all-guides.com SCAN IT AND M /B CODE] [LOCK 2PCS (M3*4-I)SCREW IN LEFT BKT] 1. FETCH TRAVEL CARD, TEAR OFF 1*PCS S/N FROM TRAVEL CARD AND PASTE IT ON THE PANEL BACK,THEN SCAN S/N AND PANEL CODE 2.
  • Page 35 All manuals and user guides at all-guides.com [LOCK 3*PCS（M3*4-I）IN BEZEL] 2. [INSERT LVDS CABEL IN LCD ANNECTENT] 3. [GET SHIELD AND PUT ON MONITOR] 1. [STICK YELLOW TEYE ON THE LCD ANNECTENT ] 2. [LOCK 4PCS SCREW FIXING SHIELD IN BKT] 1.
  • Page 36 All manuals and user guides at all-guides.com 1. [LOCK 4PCS(F3*10-B)SCREW FIXING PANEL-HOOKON MONITOR ] 1. [GET THE SPEAK ASSY WITH BEZEL BOSS AND INSERT CABLE SPEAK] 2. [GET BUTTON/B AND CABLE BUTTON THAN INSERT IN BUTTON ANNECTENT] 1. [LOCK 4PCS (F2.5*8-P)SCREW FIXING SPEAK ASSY] 2.
  • Page 37 All manuals and user guides at all-guides.com 1. [LOCK 4PCS I/O NUT SCREW VGA ANNECTENT] 2. [CLEAN UP THE CABLE] 1. [GET 2PCS AL FILM AND STICK BKT ] 2. [GET 1PCS AL FILM AND STICK ON THE SHIELD] 1. GET LCD COVER AND INSPECT ITS APPEARANCE 1＆2 2.
  • Page 38 All manuals and user guides at all-guides.com 3. STICK 1*PCS TAPE AT THE APPOINTED PLACE 1. FETCH TRAVEL CARD, TEAR OFF 1*PCS APPOINTED S/N FROM TRAVEL CARD AND PASTE IT ON THE COVER 2. LOCK 2*PCS SCREW (F3*8-B) TO FASTEN BEZEL AND LCD COVER 3.
  • Page 39 All manuals and user guides at all-guides.com 1. INSERT VGA CABLE INTO VGA CONNECTOR AND INSERT POWER CORD INTO POWER CONNECTOR 2. GET BASE FIXTRUE AND ASSEMBLE IT TO STAND NECK. 1. INSERT DVI CABLE INTO DVI CONNECTOR AND INSERT POWER CORD INTO POWER CONNECTOR 2.

  • Page 40: Chapter 4 Trouble Shooting

    All manuals and user guides at all-guides.com Chapter 4 1. No Power No Power Change Check CN7 Power Board +12V and +5V Check Short Of Main Board Check U13=1.8V U12=3.3V Change U13,U12 Change X1 or Check X1=14.318MHz Change U7 or Check U8 Pin 1,2,5,6 Clock Change U7...
  • Page 41 All manuals and user guides at all-guides.com 2. Missing Color Missing Color Change Check VGA or Cable DVI Cable Check R4,R8,R10 Change R4,R8,R10,U Change U7 Check CN5 or CN5 Cable LVDS Signal or Panel Adjustment Change Check OSD R/G/B Color Panel R/G/B Gain - 41 -...
  • Page 42 All manuals and user guides at all-guides.com 3. Always show “NO SIGNEL” “NO SIGNEL” Change Check VGA or Cable DVI Cable DVI Check U7 VGA Check Change U7 R4,R8,R10,R20, 109, 110, 112,113, 117, 118, 120, 121 Change VGA Change DVI Cable or R4, R8,R10, R20, Cable or U7...

  • Page 43: Chapter 5 Connector Information

    All manuals and user guides at all-guides.com Chapter 5 Connector Information Phonejack stereo PIN1. AC power cord : CEE22 typed connector PIN2. Audio cable PIN3. Audio : Line-in receptacle The PIN assignment of the 15 pin mini D-SUB connector / cable is as follows: PIN Signal Green Blue...
  • Page 44 All manuals and user guides at all-guides.com The PIN assignment of the 24 pin DVI-D connector / cable is as follows: PIN Signal PIN Signal PIN Signal TMDS data2- TMDS data2+ Ground (return for +5 V and H/V sync) TMDS data2 shield Hot plug detect TMDS data0- TMDS data0+...

  • Page 45: Chapter 6 Fru List

    NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how best to dispose it, or follow the rules set by your regional Acer office on how to return it.
  • Page 46 All manuals and user guides at all-guides.com...
  • Page 47 All manuals and user guides at all-guides.com Part No of Exploded View ITEM PART NUMBER PART DESCRIPTION NUIT ITEM PART NUMBER PART DESCRIP 21L0TBMB006 L0TB M/B ASSY(GM5861)GP 22 FBWDTB06015 PANEL HOOK W AS05B560004 ADP/INV,EAIP-102AFB,90~264V REV1A GP 23 MF30100B008 SCREW F3.0*10 23L7TBBB001 L7TB BUTTON/B ASSY GP 24 EBWDTB01013...
  • Page 48 All manuals and user guides at all-guides.com Part list Above picture show the description of the following component Item Picture Description Part No back cover 25WDTBLC001 bezel 34WDTBLB004 base 38WDTBBS006 stand 37WDTBSU007 screw MM40080BBW1 - 48 -...

  • Page 49: Chapter 7 Schematic Diagram

    All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM Main Board Circuit Change 5V to 3.3V +12V +18V +3.3_DVDD C206 C206 100UH 100UH RB081L-20 RB081L-20 2200pF/6 2200pF/6 C207 C207 R237 R237 R225 R225 0.1uF /6 0.1uF /6 R224 R224 C204 C204 R170 R170...
  • Page 50 All manuals and user guides at all-guides.com DQ_B_[0..15] DQ_B_[0..15] DQ_A_[0..15] DQ_A_[0..15] A[0..10] A[0..10] +3.3_MEM +3.3_MEM_Q +3.3_MEM +3.3_MEM_Q IC50TSOPII IC50TSOPII IC50TSOPII IC50TSOPII 3904 SI2301 DQ_A_0 DQ_A_15 DQ_B_0 DQ_B_15 DQ15 DQ15 DQ_A_1 DQ_A_14 DQ_B_1 DQ_B_14 Component Componen DQ14 DQ14 top view top view VSSQ VSSQ VSSQ...
  • Page 51 All manuals and user guides at all-guides.com +1.8_DVDD +1.8V_AVDD L1206 L1206 L1206 L1206 47uF/10V 47uF/10V 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 22uF/10V 22uF/10V...
  • Page 52 All manuals and user guides at all-guides.com Modify for EMI 11/08 VGA_+5V AGND AGND AGND 47R 1% 47R 1% 2.2uF 2.2uF BLUE1+ 22pF/NC 22pF/NC 22pF/NC 22pF/NC 22pF/NC 22pF/NC SCL_VGA VGA_cable_detect VS_VGA 75R 1% 75R 1% 2.2uF 2.2uF SOGMCSS1 HS_VGA SDA_VGA AGND 47R 1% 47R 1%...

  • Page 53: Chapter 8 Power Board Information

    All manuals and user guides at all-guides.com Chapter 8 Power Board Current set Information Power Board AS05B560004 Model Name Lamp Curren AS05B560004 AAM240M2006 Samsung LTM240M2-L02 (VA) NO Jump - 53-...