Acer AL2423W h Service Manual Download

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Preface

Before using this information and the product it supports, please read the following general information.

This Service Guide provides you with all technical information relating to BASICCONFIGURATION

decided for Acer’s “global” product offering. To better fit local market requirements and enhance product

competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g.

add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered

in this generic service guide. In such cases, please contact your regional offices or the responsible

personnel/channel to provide you with further technical details.

Please not WHEN ORDERING FRU PARTS, that you should check the most up-to-date information

available on your regional web or channel. If, for whatever reason, a part number change is made, it will

not be noted in the printed Service Guide, for ACER-AUTHORIZED SERVICE PROVIDERS, your Acer

office may have a 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.

Summary of Contents for AL2423W h

Page 1: ... 1 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 ...

Page 2: ...ect to the contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular purpose Any Acer Incorporated software described in this manual is sold or licensed as is Should the programs prove defective following their purchase the buyer and not Acer Incorporated its distributor of its dealer assumes the entire cost of all necessary servicing repair and any...

Page 3: ... 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 Caution Gives precautionary measures to avoid possible hardware or software problems Important Reminds you to do specific actions relevant to the accomplishment of procedures ...

Page 4: ...NOT be covered in this generic service guide In such cases please contact your regional offices or the responsible personnel channel to provide you with further technical details 2 Please not WHEN ORDERING FRU PARTS that you should check the most up to date information available on your regional web or channel If for whatever reason a part number change is made it will not be noted in the printed ...

Page 5: ...ceiving antenna 2 Increase the separation between the equipment and receiver 3 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected 4 Consult the dealer or an experienced radio TV technician for help NOTICE 1 The changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the ...

Page 6: ...any l The monitor is equipped with a three pronged grounded plug a plug with a third grounding pin This plug will fit only into a grounded power outlet as a safety feature If your outlet does not accommodate the three wire plug have an electrician install the correct outlet or use an adapter to ground the appliance safely Do not defeat the safety purpose of the grounded plug l Unplug the unit duri...

Page 7: ...ay find slightly uneven brightness in the screen depending on the desktop pattern you use l The LCD screen has effective pixels of 99 99 or more It may include blemishes of 0 01 or less such as a missing pixel or a pixel lit all of the time l Due to the nature of the LCD screen an afterimage of the previous screen may remain after switching the image when the same image is displayed for hours In t...

Page 8: ...ITOR FEATURE 9 Chapter 2 OPERATING INSTRUTION 21 1 Chapter 3 MACHINE ASSEMBLY 28 Chapter 4 TROUBLE SHOOTING 40 Chapter 5 CONNECTOR INFORMATION 43 Chapter 6 FRU LIST 45 Chapter 7 SCHEMATIC DIAGRAM 49 Chapter 8 POWER BOARD INFORMATION 53 ...

Page 9: ...ay Color 16 7 million Colors Maximum Dot Clock 162MHz Max Resolution WUXGA1920 1200pixels Plug Play DDC2B ON Mode 85W EPA ENERGY STAY OFF Mode 2W Audio output Rated Power 2 0W rms Per channel Input Connector D Sub DVI D Input Video Signal Analog 0 7 V Digital TMDS Horizontal 518 4mm Screen Size Active Vertical 324mm Power Source 100 240 VAC 50 60HZ Environmental Considerations Operating Temp 5 to ...

Page 10: ... ENTER External Controls Contrast brightness Focus Clock H Position W Position Language OSD Color temperature OSD Position Timeout Auto Config Input Information Reset Exit Regulatory Compliance cUL FCC TUV CE ISO13406 2 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 ...

Page 11: ...ines 16 683 525 lines 15 000 525 lines 13 735 520 lines V Sync ms 0 064 2 lines 0 064 2 lines 0 086 3 lines 0 079 3 lines V B P ms 1 112 35 lines 1 049 33 lines 1 114 39 lines 0 739 28 lines V Active ms 12 71 400 lines 15 253 480 lines 13 714 480 lines 12 678 480 lines V F P ms 0 384 12 lines 0 317 10 lines 0 086 3 lines 0 237 9 lines SYNC H V POLARITY Or SEP SYNC Y Y Y Y MODE NO 5 6 7 8 RESOLUTIO...

Page 12: ...s 17 71 1328 dots H Sync us 2 400 120 dots 1 12 64 dots 2 092 136 dots 1 81 136 dots H B P us 1 280 64 dots 3 91 224 dots 2 462 160 dots 1 92 144 dots H Active us 16 00 800 dots 14 52 832 dots 15 754 1024 dots 13 65 1024 dots H F P us 1 120 56 dots 0 56 32 dots 0 369 24 dots 0 32 24 dots f v 72Hz 72 188 74 55Hz 60 004Hz 70 07Hz V Total ms 13 85 666 lines 13 41 667 lines 16 666 806 lines 14 27 806 ...

Page 13: ... 0 02 1 lines 0 016 1 line 0 013 1 lines 0 015 1 lines SYNC H V POLARITY SEP SYNC Y Y Y Y MODE NO 17 18 19 20 RESOLUTION 1280 x 960 1600 x 1200 1280 x 720 1280 x 768 Dot clock MHz 108 162 74 176 79 5 f h 60 000 KHz 75 000 KHz 44 955KHz 47 776KHz H Total us 16 667 1800dots 13 333 2160 dots 22 244 1650dots 20 931 1664dots H Sync us 1 037 112 dots 1 185 192 dots 0 539 40 dots 1 61 128 dots H B P us 2...

Page 14: ...dots 15 906 1360 dots 13 521 1440 dots 10 53 1440 dots H F P us 0 782 80 dots 0 749 64 dots 0 751 80 dots 0 702 96 dots f v 74 893Hz 60 015Hz 59 887Hz 74 984Hz V Total ms 13 352 805 lines 16 662 795 lines 16 698 934 lines 13 336 942 lines V Sync ms 0 116 7 lines 0 126 6 lines 0 107 6 lines 0 085 6 lines V B P ms 0 448 27 lines 0 377 18 lines 0 447 25 lines 0 467 33 lines V Active ms 12 739 768 lin...

Page 15: ... Hz V Total ms 16 679 1089 lines 16 667 517 lines V Sync ms 0 092 6 lines 0 258 8 lines V B P ms 0 459 30 lines 0 741 23 lines V Active ms 16 082 1050 lines 15 474 480 lines V F P ms 0 046 3 line 0 193 6 lines SYNC H V POLARITY SEP SYNC Y Y A H Total O V Total B H Sync width P V Sync width C H Back porch Q V Back porch D H Video width R V Video width E H Front porch S V Front porch ...

Page 16: ...f 02 Top Level 7 8 Saturday December24 2005 C2A SCHEMATIC1 Page 6 Memory DQS 0 3 FSCKE FSBKSEL1 FSALTCAS FSALTRAS FSALTWE FSBKSEL0 FSCLK FSCLK FSDQS FSDATA 0 31 FSADDR 0 11 DM 0 3 PROJECT PROJECT WDTB Page 5 GM5861 FSCLK FSCLK FSDQS FSCKE FSALTRAS FSALTCAS FSALTWE FSBKSEL0 FSBKSEL1 RED BLUE GREEN BLUE GREEN RED SOG VGA_SCL VGA_SDA AHS AVS SVDATA 0 7 SVODD SVS SHS SVCLK MSTR_SDA MSTR_SCL FSDATA 0 3...

Page 17: ... 17 PCB CONDUCTOR VIEW Main Board ...

Page 18: ... 18 ...

Page 19: ... 19 Power Board ...

Page 20: ... 20 Button board ...

Page 21: ...is active press Auto to exit a selection in the OSD If the OSD is inactive press Auto and the monitor will automatically optimize the position focus and clock of your display 2 3 Minus Plus If the OSD is active press Minus or Plus to toggle between the OSD options If OSD is inactive press Minus or Plus to adjust the volume 4 OSD functions Press to view the OSD Press again to enter a selection in t...

Page 22: ...arp Clock If there are any vertical stripes seen on the background of the screen this renders them less noticeable by minimizing their size It also changes the size of the horizontal screen H Position This adjusts the horizontal V Position This adjusts the vertical Color adjustment There are three ways to adjust color Warm reddish white Cool bluish white User you can adjust the colors red green an...

Page 23: ...hinese French Italian and Japanese Language for EMEA Select the OSD menu language Select from English German Spanish Russia Nederlands French Italian and Finnish OSD Settings This changes the position of the OSD window on the screen and the staying time Input signal Select either Analog Input or Digital Input video ...

Page 24: ...Information This shows information about the screen Reset Resets all settings to default levels Exit Exit from OSD ...

Page 25: ...rm Auto Balance measurement COLOR UPDATE Force presently R G B offset and gain parameters update to currently temperature memory address FACTORY RESET Recall to factory setting and power off immediately 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 25 Reset Resets all settings to default levels ...

Page 26: ...ities according to the VESA DDC STANDARD It allows the monitor to inform the host system of its identity and depending on the level of DDC used communicate additional information about its display capabilities The communication channel is defined in two levels DDC2B The DDC2B is a bi directional data channel based on the I2 C protocol The host can request EDID information over the DDC2B channel Sy...

Page 27: ...stored and the display is automatically redrawn The appearance is similar to a Screen Saver feature except the display is completely off The display is restored by pressing a key on the keyboard or clicking the mouse USING THE RIGHT POWER CORD The accessory power cord for the Northern American region is the wallet plug with NEMA 5 15 style and is UL listed and CSA labeled The voltage rating for th...

Page 28: ...OTE 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 2 Note The monitor surface is susceptible to scratching Therefore lay the monitor on a soft surface when mounting or removing the base 3 Wear gloves Front View unit mm ...

Page 29: ... 29 Real View Top View ...

Page 30: ... 30 Side View unit mm ...

Page 31: ...ion 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 GET POWER B AND INSERT JUMPER IN THE APPOINTED PLACE OF JP10 AT 2 LOCK 3PCS SCREW ON SHIELD 1 1 1 2 2 3 2 1 2 ...

Page 32: ... 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 GET 2PCS BKT E AND ASSY WITH INV MODULE 2 FASTEN 4 PCS SCREW M4 0 6 B IN THE APPOINTED PLACE OF INV MODULE 1 2 2 3 1 3 1 2 1 1 2 3 2 1 2 3 2 3 2 4 2 2 2 1 1 1 3 ...

Page 33: ...HE 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 INSERT CCFT CABEL IN INV MODULE 1 1 2 1 1 2 2 2 3 3 3 2 1 3 1 1 2 ...

Page 34: ... PCS S N FROM TRAVEL CARD AND PASTE IT ON THE PANEL BACK THEN SCAN S N AND PANEL CODE 2 GET LEFT BKT AND LOCK 2 PCS SCREW M3 5 I TO FASTEN IT AND PANEL 1 GET POWER MYLAR AND STICK SHIELD 2 LOCK 3 PCS M3 4 I IN BEZEL 3 GET 1PCS WIRE MOUNTS BEZEL 1 1 2 1 2 2 2 2 1 1 1 3 1 4 2 2 2 1 1 2 3 2 2 2 1 3 ...

Page 35: ... 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 GET PANEL HOOKON AND ASSY MONITOR BOSS 1 3 1 2 1 1 3 1 2 3 2 3 2 3 2 3 2 3 2 2 1 1 ...

Page 36: ... 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 ASSY BUTTON B WITH BEZEL AND INSERT CABLE BUTTON 1 1 1 2 1 1 1 1 3 1 2 1 1 1 2 1 3 1 4 2 1 ...

Page 37: ...T 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 2 ASSEMBLE LCD COVER TO BEZEL 2 1 1 1 2 1 4 1 3 2 1 1 2 2 1 2 ...

Page 38: ...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 GET STAND NECK AND INSPECT IF IT IS DIRTY AND SCRATCHED THEN PUT IT IN THE CONVEYER 1 LOCK 4 PCS SCREW M4 10 B TO FASTEN STAND NECK 1 2 1 2 2 3 1 1 1 3 1 4 1 2 ...

Page 39: ... 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 STAND UP THE MONITOR AND STICK TRAVALCARD AT LEFT DOWNSIDEOF MONITOR 2 1 2 ...

Page 40: ...Yes Change Power Board NO Check U13 1 8V U12 3 3V Change U13 U12 NO Check Short Of Main Board No Yes Check X1 14 318MHz NO Change X1 or U4 Yes Check U8 Pin 1 2 5 6 Clock NO Change U7 or RUN Software ISP Change U7 Yes Check Key Board Yes Change Key Board NO ...

Page 41: ...ssing Color Check VGA or DVI Cable Yes Change Cable NO Check R4 R8 R10 Change R4 R8 R10 U 7 NO Yes Check CN5 LVDS Signal NO Change U7 or CN5 Cable or Panel Yes Check OSD R G B Gain NO Adjustment R G B Color Change Panel Yes ...

Page 42: ...GNEL NO SIGNEL Check VGA or DVI Cable Yes Change Cable NO VGA Check R4 R8 R10 R20 R21 Change VGA Cable or R4 R8 R10 R20 R21 or U7 NO DVI Check U7 Pin 109 110 112 113 117 118 120 121 Change DVI Cable or U7 Yes Change U7 NO Yes ...

Page 43: ...N2 Audio cable PIN3 Audio Line in receptacle The PIN assignment of the 15 pin mini D SUB connector cable is as follows PIN Signal 1 Red 2 Green 3 Blue 4 No Pin 5 Ground 6 Ground Red 7 Ground Green 8 Ground Blue 9 5 V for DDC 10 Ground 11 Ground 12 SDA DDC Data 13 H Sync 14 V Sync 15 SCL DDC Clock ...

Page 44: ... V sync 3 TMDS data2 shield 16 Hot plug detect 4 NC 17 TMDS data0 5 NC 18 TMDS data0 6 DDC clock 19 TMDS data0 shield 7 DDC data 20 NC 8 Not connected 21 NC 9 TMDS data1 22 TMDS clock shield 10 TMDS data1 23 TMDS clock 12 NC 24 TMDS clock The PIN assignment of the 24 pin DVI D connector cable is as follows ...

Page 45: ...om tw spl For whatever reasons a part number change is made it will not be noted in the printed Service Guide For ACER AUTHORIZED CERVICE PROVIDERS your Acer office may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide You MUST use the local FRU list provided by your regional Acer office to order FRU parts repair and service of customer machines NOTE To...

Page 46: ......

Page 47: ...B01013 LCD BKT L WDTB GP 1 30 EAL0TB03014 STAND L0TB GP 1 10 FCWDTB01014 BKT L MYLAR WDTB GP 1 31 EBL9TB02013 HINGE COVER L9TB GP 1 11 FBWDTB03016 BKT L PLATE WDTB GP 2 32 FAWDTB02019 HINGE ASSY WDTB GP 1 12 FBWDTB02010 LCD BKT R WDTB GP 1 33 MF40080IBJ1 SCREW F4 0 8 I NI GP 4 13 EBL70023013 WIRE MOUNTS L70L E GP 1 34 EAWDTB03015 STANDARD BASE WDTB GP 1 14 FCWDTB02011 INVERTOR MYLAR WDTB GP 1 35 G...

Page 48: ...art list Above picture show the description of the following component Item Picture Description Part No 1 back cover 25WDTBLC001 2 bezel 34WDTBLB004 3 base 38WDTBBS006 4 stand 37WDTBSU007 5 screw MM40080BBW1 ...

Page 49: ...SI9435 Q11 SI9435 C162 0 01uF C162 0 01uF C199 100uF 25V C199 100uF 25V Q9 3906 Q9 3906 C180 0 1uF C180 0 1uF R203 330R 1 R203 330R 1 FB27 L1206 NC FB27 L1206 NC R187 100R R187 100R R193 100R R193 100R R198 100R NC R198 100R NC 2 3 4 5 6 7 8 9 1 H3 MTH276D126 1 H3 MTH276D126 C A D19 RB081L 20 D19 RB081L 20 C192 0 1uF C192 0 1uF R191 100R R191 100R Q16 MMST3906 NC Q16 MMST3906 NC C207 0 1uF 6 C207 ...

Page 50: ...M 36 NC 37 VDDQ 38 DQ8 39 DQ9 40 VSSQ 41 DQ10 42 DQ11 43 VDDQ 44 DQ12 45 DQ13 46 VSSQ 47 DQ14 48 DQ15 49 VSS 50 U9 HY57V161610D MT48LC1M16A1TG S IC50TSOPII U9 HY57V161610D MT48LC1M16A1TG S IC50TSOPII R127 470R NC R127 470R NC R167 0R R167 0R R163 0R NC R163 0R NC C150 0 1uF C150 0 1uF C113 47uF 10V C113 47uF 10V R125 0R NC R125 0R NC R123 0R R123 0R FB9 L1206 FB9 L1206 R131 4K7 NC R131 4K7 NC R150...

Page 51: ...C87 0 1uF R98 85R 1 R98 85R 1 C52 0 1uF C52 0 1uF R114 10K R114 10K R115 0R R115 0R DQ15_A 8 DQ6_A 1 DQ5_A 2 DQ4_A 3 DQ3_A 4 DQ2_A 5 DQ1_A 6 DQ0_A 7 DQ14_A 9 DQ13_A 10 DQ12_A 11 DQ11_A 12 DQ10_A 13 DQ9_A 14 DQ8_A 15 CRVSS 16 RVDD_3 3 17 WE 18 CAS 19 RAS 20 BA 21 MCLK 22 A9 23 CRVSS 24 RVDD_3 3 25 A8 26 A7 27 A6 28 A5 29 A4 30 A3 31 A2 32 A1 33 A0 34 A10 35 RVDD_3 3 36 CRVSS 37 DQ7_B 38 DQ6_B 39 DQ...

Page 52: ...C R47 47R R47 47R 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 16 17 CN1 DB15 HD CN1 DB15 HD PAD3 EMI PAD PAD3 EMI PAD 1 2 3 D2 DAN217K NC D2 DAN217K NC R23 10K NC R23 10K NC R52 0R R52 0R R30 10R 1 R30 10R 1 R10 0R R10 0R R214 100R R214 100R C37 33pF NC C37 33pF NC C38 0 1uF C38 0 1uF C44 33pF NC C44 33pF NC 1 2 3 D16 DAN217K NC D16 DAN217K NC R9 47R 1 R9 47R 1 GND 4 VCC 8 A0 1 A1 2 A2 3 WP 7 SCL 6 SDA 5 ...

Page 53: ... 53 Chapter 8 Power Board Current set Information Power Board AS05B560004 P N Model Name Lamp Curren AS05B560004 AAM240M2006 Samsung LTM240M2 L02 VA 6mA NO Jump ...

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