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Acer X241W
Service Guide
Service guide files and updates are available on the
CSD web: for more information,
Please refer to
http://csd.acer.com.tw/
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Summary of Contents for Acer X241

  • Page 1 Acer X241W 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 “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 incidental or consequential damages resulting from any defect in the software.
  • Page 3 Conventions The following conventions are used in this manual: Screen messages Note Warning Caution Important Denotes actual messages that appear on screen Gives bits and pieces of additional information related to the current topic. 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 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 PRECAUTIONS Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, Swimming pool or in a wet basement. 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: Special Notes On Lcd Monitors

    SPECIAL NOTES ON LCD MONITORS The following symptoms are normal with LCD monitor and do not indicate a problem. NOTES 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

    Table of contents Chapter 1 MONITOR FEATURE ……………………………………………………………..9 Chapter 2 OPERATING INSTRUTION ……………………………………………………..31 Chapter 3 MACHINE ASSEMBLY…………………………………………………………...37 Chapter 4 TROBLE SHOOTING …………………………………………………………….53 Chapter 5 CONNECTOR INFORMATION…………………………………………………..56 Chapter 6 FRU LIST…………………………………………………………………………...58 Chapter 7 SCHEMATIC DIAGRAM …………………………………………………………62 Chapter 8 POWER BOARD INFORMATION...70 - 8 -...
  • Page 9: Chapter 1 Monitor Feature

    Monitor Feature LCD Panel Input Display Color Maximum Dot Clock ® Max Resolution Plug & Play EPA ENERGY STAY Audio output Input Connector Input Video Signal Screen Size (Active) Power Source Environmental Considerations Weight (N.W.) Dimension Driving system TFT Color LCD Size 24"...
  • Page 10 Switch External Controls : Regulatory Compliance * Power Switch * MENU / EXIT / Volume / Volume * AUTO / ENTER * Contrast/brightness * Focus * Clock * H.Position * W.Position * Language * OSD Color temperature * OSD Position & Timeout * Auto Config * Input * Information...
  • Page 11 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 Dot clock(MHz) 31.469kHz H-Total ( us ) 31.78(900dots) H-Sync ( us ) 3.813(108dots) H-B-P ( us ) 1.907(54dots) H-Active ( us ) 25.42(720dots)
  • Page 12 MODE NO. RESOLUTION 800 x 600 Dot clock(MHz) 48.077kHz H-Total ( us ) 20.80 (1040dots) H-Sync ( us ) 2.400 ( 120 dots) H-B-P ( us ) 1.280 (64 dots) H-Active ( us ) 16.00 (800 dots) H-F-P ( us ) 1.120 (56 dots) 72Hz (72.188) V-Total (ms )
  • Page 13 MODE NO. RESOLUTION 1280 x 960 Dot clock(MHz) 60.000 KHz H-Total ( us ) 16.667 (1800dots) H-Sync ( us ) 1.037 ( 112 dots) H-B-P ( us ) 2.889 (312 dots) H-Active ( us ) 11.852 (1280 dots) H-F-P ( us ) 0.889 (96 dots) 60.00Hz V-Total (ms )
  • Page 14 MODE NO. RESOLUTION 1680 x 1050 Dot clock(MHz) 146.25 65.29 KHz H-Total ( us ) 15.316 (2240 dots) H-Sync ( us ) 1.203 ( 176 dots) H-B-P ( us ) 1.915 (280 dots) H-Active ( us ) 11.487 (1680 dots) H-F-P ( us ) 0.711 (104 dots) 59.954 Hz...
  • Page 15: Monitor Block Diagram

    Monitor Block Diagram Page 4 03. Graphic Inputs RED+ RED- GREEN+ GREEN- BLUE+ BLUE- VGA_SCL VGA_SDA VGA_CAB PROJECT : WDTB PROJECT : Title Title Title 02. Top Level 02. Top Level 02. Top Level Size Size Size Document Number Document Number Document Number WDTB SCHEMATIC1...
  • Page 16 PCB CONDUCTOR VIEW Main Board...
  • Page 26 Button Board...
  • Page 28 POWER BOARD - 16 -...
  • Page 31: Operating Instructions

    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. * Adjusting display settings External Controls ○ POWER ○...
  • Page 32 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. Clock: If there are any vertical stripes seen on the background of the screen, this renders them less noticeable by minimizing their size.
  • Page 33 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. OSD Settings: This changes the position of the OSD window on the screen and the staying time.
  • Page 34 Information: This shows information about the screen. Reset: Resets all settings to default levels. Exit: Exit from OSD.
  • Page 35: Led Definition

    LED Definition The system equips one dual color (blue/amber) led to indict system status and defined as bellows: LED Color Green Amber Dark LOGO: When the monitor is power on, the LOGO will be showed in the center, and disappear slowly. HOW TO OPTIMIZE THE DOS-MODE Plug and play Plug &...
  • Page 36 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 37: Chapter 3 Machine Assembly

    Machine assembly This chapter contains step-by-step procedures on how to assemble the monitor for maintenance and trouble shooting 1. The screws for the different components vary in size. During the disassembly process, group the NOTE : screws with the corresponding to avoid mismatch when putting back the components. 2.
  • Page 38 Real View: Top View: - 38 -...
  • Page 39 Side View: (unit : mm ) - 39 -...
  • Page 40 ASSEMBLY PROCESS PUT THE PCB SHIELDING ON THE FOAM. INSERT THE M/B CABLE TO THE SINK OF M/B, THEN PUT IT TO THE PRODUCTION LINE CONNECT THE POWER BOARD AND MAIN BOARD AND PUT THE TO SHIELDING SCAN THE FLOW CARD AND POWER BOARD CODE...
  • Page 41 LOCK UP3*PCS SCREW(F3*6-T) WITH POWER BOARD AS LEFT SHOW LOCK UP 1*PCS SCREW(M4.0*8-B) WITH INV/B AS LEFT SHOW PUT THE POWER/MYLAR TO THE SHIELDING LOCK UP 3*PCS SCREW(F3*6T) WITH MAIN BOARD AS LEFT SHOW GET THE INVERTER BOARD / CABLE AND CHECKING INSERT THE CABLE TO THE SINK OF INVERTER BOARD...
  • Page 42 GET THE PLASTIC SCREW AND INSERT IT INTO THE INVERTER BOARD STICK 1*PCS MYLAR ON THE INVERTER BOARD SCAN THE FLOW CARD AND INVERTER BOARD CODE PUT 2*PCS BRACKET TO THE INVERTER BOARD LOCK UP 4*PCS SCREWS( M4.0*6-B) TO THE INVERTER BOARD AS LEFT SHOW MOVE THE INVERTER BOARD TO THE FRONT OF PRODUCTION LINE...
  • Page 43 TEAR OFF THE PLASTIC FILM OF PANEL AND CHECKING WHETHER SCRAPE OR DIRTY STICK GOOEY ON THE PLASTIC FILM FOR FIXING TURN OVER THE LCD AND TEAR OFF THE GOOEY OF CCFT CABLE SCAN THE FLOW CARD THE PANEL CODE STICK 1*PCS FLOW CODE ON THE PANEL AS LEFT SHOW INSERT THE UPSIDE LAMP CABLE TO THE...
  • Page 44 SCAN THE FLOW CARD THE MAIN BOARD CODE INSERT 3*PCS DOWNSIDE LAMP CABLE TO THE INVERTER BOARD PUT THE LEFT BRACKET TO THE INVERTER BOARD LOCK UP 4*PCS(F3*6-T) WITH BRACKET LOCK UP 2*PCS(M3*4-I) WITH THE LEFT BRACKET LOCK UP 2*PCS(M3*4-I) WITH LEFT BRACKET TURN OVER THE LCD...
  • Page 45 GET THE BEZEL AND CHECKING PUT THE BEZEL TO THE PANEL STICK PLASTIC FILM ON THE BEZEL TURN OVER THE LCD...
  • Page 46 LOCK UP 3*PCS SCREWS (M3*4-I) WITH THE RIGHT SIDE BEZEL PUT 1*PCS FASTENER TO THE PANEL BACKSIDE LOCK UP3*PCS SCREWS (M3*4-I) TO THE LEFT SIDE BEZEL INSERT THE LVDS CABLE TO THE SINK OF PUT THE SHIELDING ON THE LCD...
  • Page 47 STICK GOOEY ON THE SINK OF LVDS CABLE LOCK UP4*PCS SCREWS WITH THE SHEILDING AND BRACKET PUT THE FASTENERS TO BOTH SIDES OF LCD LOCK UP 4*PCS(F3*10-B) TO BOTH SIDES FOR FIXING...
  • Page 48 GET BUTTON BOARD AND CABLE AND INSERT THE CABLE TO THE SINK OF BUTTON BOARD PUT THE BUTTON BOARD TO THE BEZEL AND INSERT CABLE TO IT STICK 1*PCS AL FOIL TO THE BRACKET AS LEFT SHOW STICK 1*PCS AL FOIL TO THE SHIELDING AS LEFT SHOW INSERT THE INVERTER BOARD CABLE TO THE POWER BOARD...
  • Page 49 LOCK UP 4*PCS I/O NUT TO THE DOWNSIDE OF VGA STICK 1*PCS AL FOIL ON THE SHIELDING AS LEFT SHOW STICK 1*PCS AL FOIL TO THE BRACKET AS LEFT SHOW STICK 1*PCS AL FOIL TO THE SHIELDING AS LEFT SHOW PUT THE CABLE TO THE FASTENER AND STICK 1*PCS GOOEY ON THE LOCATION AS LEFT SHOW...
  • Page 50 CHECKING THE AL FOIL(5*PCS) WHETHER WRONG MODE AND LOCATION CHECKING THE CABLE WHETHER SETTLED CHECKING THE GOOEY WHETHER UNSTICK OR SETTLED ROCK THE LCD WHETHER ANY DIFFERENT THINGS GET THE REAR COVER AND CHECKING PUT THE REAR COVER TO THE BEZEL STICK 1*PCS GOOEY TO THE REAR COVER AS LEFT SHOW LOCK UP 2*PCS SCREWS TO THE BEZEL AND...
  • Page 51 CHECKING THE TWO SCREWS ON REAR COVER WHETHER SETTLED LOCK UP 4*PCS SCREWS(M4*10-B) TO THE REAR COVER FOR FIXING GET THE BASE AND CHECKING PUT THE BASE TO THE STAND OF REAR COVER PUT THE BAG OF TOOL TO THE BASE STAND UP THE LCD AND PUT OUT THE FOAM...
  • Page 52 TEAR OFF THE PASTIC FILM OF BEZEL AND PANEL AND CHECKING THE GAP WHETHER WRONG CHECKING THE OUTLINE OF LCD WHETHER SCRAPE AND DIRTY CHECKING GAP BETWEEN THE BEZEL AND REAR COVER WHETHER WRONG INSERT THE SIGNAL CABLE AND POWER CORD TO LCD AND SETTLE IT STICK FLOW CARD ON THE BEZEL...
  • Page 53: Trouble Shooting

    TROUBLE SHOOTING 1. No Power Change Power Board Check Short Of Main Board Change U13,U12 Change X1 or Change U7 or Change U7 RUN Software No Power Check CN7 +12V and +5V Check U13=1.8V U12=3.3V Check X1=14.318MHz Check U8 Pin 1,2,5,6 Clock Check Key Board...
  • Page 54 2. Missing Color Change Cable Change R4,R8,R10,U Change U7 or CN5 Cable or Panel Adjustment R/G/B Color Missing Color Check VGA or DVI Cable Check R4,R8,R10 Check CN5 LVDS Signal Check OSD R/G/B Gain Change Panel...
  • Page 55 3. Always show “NO SIGNEL” Change Cable VGA Check R4,R8,R10,R20, Change VGA Cable or R4, R8,R10,R20, R21 or U7 “NO SIGNEL” Check VGA or DVI Cable Change U7 DVI Check U7 109,110,112,113, 117, 118,120,121 Change DVI Cable or U7...
  • Page 56: Chapter 5 Connector Information

    Connector Information Phone jack stereo PIN1. AC power cord PIN2. Audio cable PIN3. Audio Video signal connector 15P Mini D-Sub connector x 1 Signal Green Blue No Pin Ground Ground Red Ground Green Ground Blue +5 V for DDC Ground Ground SDA (DDC Data) H –...
  • Page 57 Proprietary connecting of DVI box The PIN assignment of the 24 pin DVI-D connector / cable is as follows: Signal TMDS data2- TMDS data2+ TMDS data2 shield DDC clock DDC data Not connected TMDS data1- TMDS data1+ TMDS data1 shield Ground (return for +5 V and H/V sync) Hot plug detect TMDS data0-...
  • Page 58: 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. - 58 -...
  • Page 59 EXPLODED VIEW...
  • Page 60 RUBBER FOOT L7TA GP FBWDTB04012 STANDARD BASE PLATE WDTB GP MF30070FBJ6 SCREW F3.0*7-F(NI)GO MF40160PJ22 SCREW M4.0*16-P(BLACK NI)GP MM4.100B244 SCREW M4.0*10-B BLACK (NYLDK)GP HCWDTB01014 RATING LABEL-EN WDTB GP JXWDTB01014 LCD FILM-EN WDTB GP AAM240M2006 LCD 24'LTM240M2-L02 FOR ACER CON GP NUIT...
  • Page 61 Part list Above picture show the description of the following component Item Picture - 61- Description Part No back cover 25WDTBLC001 bezel 34WDTBLB004 base 38WDTBBS006 stand 37WDTBSU007 screw MM40080BBW1...
  • Page 62: Chapter 7 Schematic Diagram

    SCHEMATIC DIAGRAM WUXGA/UXGA LCD Controller Board Design Genesis 5861 RD1 CONTENTS SCHEMATIC Name SHEET 01. Cover Page 02. CONTENTS 03. GRAPHIC INPUT 04. FLI5961 05.SDRAM /AMP/ OUTPUT POWER/KEYPAD History Approval Position REVISION HISTORY Date Author 2005/11/2 XXXXX Signature Date Chapter 7 Comments Initial Release PROJECT : WDTD...
  • Page 63 VGA_+5V SCL_VGA VGA_cable_detect VS_VGA HS_VGA SDA_VGA DB15 HD DB15 HD +3.3_AVDD TZMC5V6/NC TZMC5V6/NC TZMC5V6/NC TZMC5V6/NC AGND AGND 100R 1% 100R 1% 33pF/NC 33pF/NC 33pF 33pF AGND ZD5V6 DAN217 AGND Component Component top view top view 100R 1% 100R 1% 33pF/NC 33pF/NC 33pF 33pF...
  • Page 64 +1.8_DVDD +1.8V_AVDD 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 +3.3_AVDD +3.3_ADCV 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 22uF/10V 22uF/10V Connect SDA to UART_DO, SCL to UART_DI 10/14/2005 UART_DO/BOOT3 UART_DI AMP 640456-4...
  • Page 65 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 IC50TSOPII IC50TSOPII DQ_A_0 DQ_A_15 DQ15 DQ_A_1 DQ_A_14 DQ14 VSSQ VSSQ DQ_A_2 DQ_A_13 DQ13 DQ_A_3 DQ_A_12 DQ12 VDDQ VDDQ DQ_A_4 DQ_A_11 DQ11 DQ_A_5 DQ_A_10 DQ10 VSSQ VSSQ DQ_A_6 DQ_A_9 DQ_A_7 DQ_A_8 VDDQ VDDQ LDQM UDQM CAS#...
  • Page 66 +12V 200UH 200UH C206 C206 SSM54PT SSM54PT 2200pF/6 2200pF/6 R237 R237 R225 R225 0.1uF /6 0.1uF /6 R224 R224 150/1206 150/1206 13.7K/1% 13.7K/1% 390K/6 390K/6 R223 R223 1K/1% 1K/1% C195 C195 AIC1563 AIC1563 330pF/5% 330pF/5% ADD 12V to 18V 10/14/2005 +3.3_DVDD FB19 L1206 FB19 L1206...
  • Page 67 MENU_O SEL_O PWR_O RIGHT_O LEFT_O AMBER_O GREEN_O JST 8Pin PH2.0mm H JST 8Pin PH2.0mm H TOUCH SWITCH 4P TOUCH SWITCH 4P TOUCH SWITCH 4P TOUCH SWITCH 4P TOUCH SWITCH 4P TOUCH SWITCH 4P TOUCH SWITCH 4P TOUCH SWITCH 4P TOUCH SWITCH 4P TOUCH SWITCH 4P LD1 LED Dual LD1 LED Dual...
  • Page 68: Schematic Diagram

    3DA01306X ON/OFF ON/OFF Vadj Vadj CR35 R24 C15 NDR_B PDR_A PGND LCT DIM LPWM PDR_CNDR_D OZ964S CTMR OVP ENA VDDA GNDA REF CR34 CR14 CR15 CR16 CR20 CR36 CR37 設計•DESIGN 製圖•DRAWING 檢圖•CHECKED 承認•APPVD 承認•APPVD 版 日 期 設 計 承 認 容•DESCRIPTION DATE DSGN...
  • Page 69 3DA01306X F101 C101 CR101 R105 CR102 R106 Q105 C108 C109 Q106 CR108 CR109 R100 C100 R101 C102 R102 C103 R103 C104 設計•DESIGN 製圖•DRAWING 檢圖•CHECKED 承認•APPVD 承認•APPVD 版 日 期 設 計 承 認 容•DESCRIPTION DATE DSGN T103 C113 R115 C110 C111 C112 CR113...
  • Page 70 Chapter 8 Power Board Current set Information Power Board AS08B360411 Model Name AS08B360411 AS08B360411 FSP112-3F01(T43) 90~240V NO Jump...

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