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Acer X191W Service Manual
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Acer X191W
Service Guide
Service guide files and updates are available on the
CSD web: for more information,
Please refer to
http://csd.acer.com.tw/
- 1 -

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Summary of Contents for Acer X191W

  • Page 1 Acer X191W Service Guide Service guide files and updates are available on the CSD web: for more information, Please refer to http://csd.acer.com.tw/ - 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: Denotes actual messages that appear on Screen messages screen Gives bits and pieces of additional information Note related to the current topic. Alerts you to any damage that might result Warning 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 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 Chapter 1 MONITOR FEATURE……………………………………………………………….9 Chapter 2 OPERATING INSTRUTION ………………………………………………………26 Chapter 3 MACHINE ASSEMBLY……………………………………………………………31 Chapter 4 TROBLE SHOOTING……………………………………………………………..42 Chapter 5 CONNECTOR INFORMATION…………………………………………………..45 Chapter 6 FRU LIST…………………………………………………………………………..48 Chapter 7 SCHEMATIC DIAGRAM ………………………………………………………...52 Chapter 8 POWER BOARD INFORMATION..............60 - 8 -...
  • Page 9 Chapter 1 Monitor Feature Driving system TFT Color LCD Size 19" Pixel pitch 0.2835 mm Viewable angle 160(H) x 160 (V) degree AUO panel: 300 cd/m2(typ.) Brightness Samsung panel: 300 cd/m2(typ.) AUO panel: 800:1 (typ) Contrast Ratio Samsung panel: 1000:1(typ.) LCD Panel Response time 5ms (Tr+Tf)
  • Page 10 * Power Switch * MENU / EXIT / Volume / Volume * AUTO / ENTER Switch * Contrast/brightness * Focus * Clock * H.Position * W.Position * Language * OSD Color temperature * OSD Position & Timeout * Auto Config * Input * Information * Reset...
  • 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 400 640 x 480 640x480 640 x 480 Dot clock(MHz) 28.321 25.175 30.24 31.5 31.469kHz 31.469kHz 35.0kHz 37.861kHz H-Total ( us )
  • Page 12 MODE NO. RESOLUTION 640 x 480 800 x 600 800 x 600 800 x 600 Dot clock(MHz) 31.5 49.5 37.500kHz 35.16kHz 37.879kHz 46.875kHz H-Total ( us ) 26.667(840 dots) 28.44(1024 dots) 26.40 (1056 dots) 21.333 (1056dots) H-Sync ( us ) 2.032 (64 dots) 2.00(72 dots) 3.200 (128 dots)
  • Page 13 MODE NO. RESOLUTION 1024 x 768 1280 x 1024 1280 x 1024 1152 x 864 Dot clock(MHz) 78.75 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)
  • Page 14 MODE NO. RESOLUTION 1360 x 768 1440 x 900 1440 x 900 848 x 480 Dot clock(MHz) 85.5 106.5 136.75 33.75 47.712KHz 55.935KHz 70.635KHz 31.02 KHz H-Total ( us ) 20.959 (1792dots) 17.878 (1904dots) 14.157 (1936dots) 32.237 (1088 dots) H-Sync ( us ) 1.31 ( 112 dots) 1.427 ( 152 dots) 1.112 ( 152 dots)
  • Page 15 Monitor Block Diagram VCC3.3 VCC3.3 VCC3.3 VCC3.3 MAIN BOARD VCC3.3 VCC1.8 VGA&DVI RIN+ RIN- LVA0M RGND LVA0P GIN+ LVA1M LVA1P GIN- LVA2M GGND LVA2P BIN+ LVA3M LVA3P BIN- LVACKM BGND LVACKP LVDS Interface LCD-TFT Module SOGIN LVB0M LVB0P H-SYNC LVB1M HSYNC0 LVB1P VSYNC0...
  • Page 16 PCB CONDUCTOR VIEW MAIN BOARD...
  • Page 21 BUTTON BOARD - 16 -...
  • Page 22 POWER BOARD - 16 - - 16 - - 16 -...
  • Page 25 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 Power on/off ○ 1 POWER Blue: power on Orange: in sleep mode...
  • Page 26 OSD Menu Picture Brightness: This adjusts the brightness of the picture on the screen. Contrast: This adjusts dark and light shades of color relative to each other to achieve a comfortable contrast. Focus: This removes any horizontal distortion and makes the picture clear and sharp.
  • Page 27 Option Auto Config. : System choose signal “Analog or Digital” Reset: Recall to default settings. Information: This shows brief information on the screen. Setting Language: Select the OSD menu language from English, French, German, Italian, Spanish, Simplified Chinese, Traditional Chinese, Japanese and Russian. OSD H.
  • Page 28 LED Definition The system equips one dual color (blue/amber) led to indict system status and defined as bellows : LED Color System Status Blue System in normal operation mode Amber System in power-saving mode Dark System in power-off mode LOGO : When the monitor is power on, the LOGO will be showed in the center, and disappear slowly.
  • Page 29 The DDC2B is a bi-directional data channel based on the I C protocol. The host can request EDID information over the DDC2B channel. 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 30 Chapter 3 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 31 Bottom View: Side View: - 24 -...
  • Page 32 Assembly process Picture Description PUT THE PROTENT FOAM ON THE PRODUCTION LINE CHECKING THE PCB SHIELDING AND PUT IT TO PRODUCTION LINE CHECKING THE MAIN BOARD AND PUT IT TO PRODUCTION LINE GET THE LVDS CABLE AND INSERT IT TO THE SINK OF MAIN BOARD GET BUTTON CABLE AND INSET IT TO THE SINK OF MAIN BOARD PUT THE MAIN BOARD INTO THE PCB...
  • Page 33 GET THE POWER BOARD AND PUT THE CABLE TO THE LOCATION WHICH APPOINTED CONNECT THE CABLE AND POWER BOARD BY WHITE GLUE MARK THE APPOINTED LOCATION AS LEFT PICTURE SHOW AFTER FINISHED ABOVE STEPS, PUT THE POWER BOARD TO THE PRODUCTION LINE CONNECT THE MAIN BOARD AND POWER BOARD AND PUT THEM IN TO...
  • Page 34 LOCKUP THE LOCATION OF MAIN BOARD BY THREE SCREWS(F3.0*6.0-T) AS LFET PICTURE SHOW GET THE MYLAR CARD AND INSERT IT TO THE SHIELDING PUT THE SHIELDING ON FRONT OF PRODUCTION LINE GET THE PANEL AND TEAR OFF THE GOOEY TURE OVER THE LCD AND TEAR OFF THE GOOEY TEAR OFF THE PLASTIC FILM AND CHECKING IF ANY SPOT AND SCRAPE...
  • Page 35 TEAR OFF CODE FROM FLOW AND STICK ON THE LOCATION, THEN SCAN IT INTO THE TMS GET LEFT BRACKET AND LOCKUP THE PANEL WITH TWO SCREWS(M3.0*3.0-I) GET THE RIGHT BRACKET AND LOCKUP THE PANEL WITH TWO SCREWS(M3.0*3.0-I) TURN OVER THE LCD AND TEAR OFF THE PLASTIC FILM GET THE FRONT BEZEL AND CHECKING...
  • Page 36 SCAN CODE OF THE FLOW CARD AND MAIN BOARD LOCK UP THE LEFT SIDE OF BEZEL WITH THREE SCREWS PUT THE SHIELDING ON THE LEFT AND RIGHT BRACKET INSERT THE LCD CABLE TO THE SINK OF LCD STICK ON LCD CABLE WITH 1*PCS GOOEY SETTLE THE CABLE OF SHILDING LOCK UP THE SHIELDING WITH FOUR...
  • Page 37 GET THE BUTTON BOARD AND INSERT THE BUTTON CABLE TO THE SINK OF BUTTON PUT THE BUTTON BOARD TO THE BEZEL INSERT THE UPSIDE LAMP CABLE TO THE POWER BOARD SETTLE THE CABLE OF BUTTON BOARD AND STICK ON THE LOCATION OF BUTTON CABLE WITH 1*PCS AL FOIL LOCK UP THE VGA OF MAIN BOARD...
  • Page 38 STICK ON THE LOCATION WITH 1*PCS AL FOIL AS LEFT PICTURE SHOW STICK ON THE LOCATION WITH 1*PCS AL FOIL AS LEFT PICTURE SHOW CHECKING THE SHIELDING, BEZEL, BRACKET, BUTTON BOARD, IO NUT WHETHER NOT LOCK UP CHECKING BUTTON BOARD, SPEAKER CABLE WHETHER NOT INSERTING CHECKING AL FOIL WHETHER NOT...
  • Page 39 GET THE REAR COVER AND CHECKING PUT THE REAR COVER TO THE BEZEL STICK ON THE LOCATION OF REAR COVER WITH 1*PCS GOOEY AS LEFT PIC SHOW TEAR OFF 1*PCS CODE FROM FLOW CARD AND STICK IT ON THE REAR COVER LOCK UP THE BEZEL AND REAR COVER WITH TWO SCREWS(F3.0*8-B)
  • Page 40 SETTLE THE CABLE AND STAND UP THE LCD TEAR OFF THE PE BAG INSERT THE POWER CABLE TO THE SINK STICK 1*PCS CODE ON THE BOTTOM OF RIGHTSIDE CHECKING THE GAP'S SPEC BETWEEN BEZEL AND PANEL STICK GOOEY ON THE PLASTIC FILM OF LCD...
  • Page 41 Chapter 4 Trouble Shooting 1. No Power No Power Change Check CN4 Power Board +12V and +5V Check Short Of Main Board Check D23=1.8V U3 out=3.3V Change Q8,D23,U3,D21 Change X1 or Check X1=14.318MHz Change U5 or Check U5 Pin 6,7 Clock Change U5 RUN Software Check U6...
  • Page 42 2. Missing Color Missing Color Change Check VGA Cable Cable Check R1,R5,R10 Change R1,R5,R10, Check CN7 Change U4 LVDS Signal or CN7 Cable or Panel Adjustment Change Check OSD R/G/B Color Panel R/G/B Gain...
  • Page 43 3. Always show “NO SIGNEL” “NO SIGNEL” Change Check VGA Cable Cable VGA Check Change U4 L5,R13,R15,R16 Change R13,R15,L5,R16 C11,C12...
  • Page 44 Chapter 5 Connector Information Phone jack stereo PIN1. AC power cord : CEE22 typed connector PIN2. Audio cable PIN3. Audio : Line-in receptacle Video signal connector 15P Mini D-Sub connector x 1 DB15HD...
  • Page 45 Video Connection (Dual or Analog only input) The monitor is equipped with a 15 pin mini D-SUB and 24 pin DVI (optional). PIN Assignment 15 pin mini D-Sub connector The PIN assignment of the 15 pin mini D-SUB connector / cable is as follows: Signal Green Blue...
  • Page 46 DVI-D connector (optional) 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- TMDS data0+...
  • Page 47 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. - 48 -...
  • Page 49 PART LIST OF EXPLDED VIEW ITEM PART NUMBER PART DESCRIPTION EAW9TD01015 LCD BEZEL W9TD MM30030IBJ4 SCREW M3*3-I-NI AAM190PW011 LCD 19'' WXGA M190PW01 V.0 FOR ACER FAW9TB01016 LCD-BKT-L W9TB FCL7TA01018 SHIELDING MYLAR L7TA FAL9TA03014 PCB SHIELDING DUAL L9TA EAW9TD03018 LCD COVER W9TD...
  • Page 50 Part list Above picture show the description of the following component. Picture Description Part No. Item Back Cover 25L7TBLC000 Stand 26L7TBSA001 Bezel 34L7TBLB002 Base 38L9TBBS000 Screw MM40080BBW1 - 51 -...
  • Page 51 Chapter 7 SCHEMATIC DIAGRAM CX000300112 CX000300112 0.047uF/6 0.047uF/6 RED+IN 56/6/1% 56/6/1% RED+ 4 VGA_SDA_O 100/6 100/6 DDCA_SDA 4 0.047uF/6 0.047uF/6 RED+IN RED-IN 75/6/1% 75/6/1% 100/6/1% 100/6/1% RED- 4 RED-IN DDC-SDA GREEN+IN GREEN-IN CX000300112 CX000300112 0.047uF/6 0.047uF/6 IN-H GREEN+IN BLUE+IN 56/6/1% 56/6/1% GREEN+ 4 BLUE-IN...
  • Page 52 VDVI VMPLL VPLL AVDD VDDP VDDC VCC3.3 R103 C100 0.1uF/6 VCC3.3 VDDP CX201209813 VCTRL 5 VCTRL 10K/6 10K/6 CN5/NC 10uF/50V LVA3P LVA3P LVA3M RED+ RIN0P LVA3M LVACKP RED- RIN0N LVACKP 0.1uF/6 0.1uF/6 0.1uF/6 0.1uF/6 0.1uF/6 GREEN+ LVACKM 6 GIN0P LVACKM LVA2P GREEN- GIN0N...
  • Page 53 VCC12 0.1uF/6 0.1uF/6 100uF/25V 100uF/25V VCC5V VCC3.3 VCC3.3 10K/6 10K/6 10K/6 10K/6 R100 R100 PMBS3904 PMBS3904 1K/6 1K/6 on_BACKLIGHT 4 VCTRL 4 1uF/8 1uF/8 VCC3.3 0.1uF/NC 0.1uF/NC 47/6 47/6 VCC1.8 1K/6 1K/6 CHT2907APT CHT2907APT 10uF/16V 10uF/16V LL1N4148PT LL1N4148PT 1uF/8/NC 1uF/8/NC PMBS3904 PMBS3904 2K/6...
  • Page 54 VCC5V Q9 AO3415L Q9 AO3415L LCDVCC LVB0M RXO0- RXO0+ LVB0P LVB0P LVB0M LCDVCC LVB1M RXO1- RXO1+ LVB1P LVB1P LVB1M LVB2M RXO2- RXO2+ LVB2P LVB2P LVB2M LVBCKM RXOC- RXOC+ LVBCKP LCDVCC LVBCKP LVBCKM LVB3M RXO3- RXO3+ LVB3P LVB3P 2200pF/6 2200pF/6 LVB3M 10K/6 10K/6 0.1uF/6...
  • Page 55 +12V_A +12V_A VCC12 10K/6 10K/6 10K/6 10K/6 1K/6 1K/6 VOLU CX201209813 CX201209813 VOLUME 2K/6 2K/6 PMBS3904 PMBS3904 +12V_A CX201209813 CX201209813 AGND 0.1uF/6 0.1uF/6 330uF/16V 330uF/16V AUDIO-IN AGND R-In AL3 CX201209813 AL3 CX201209813 L_LINE Z0415 100/6 100/6 LIN_PC 0.47uF/6 0.47uF/6 SPKOUTL OUTL 330uF/16V 330uF/16V...
  • Page 56 TOUCH SWITCH 4P TOUCH SWITCH 4P MENU_O MENU TOUCH SWITCH 4P TOUCH SWITCH 4P SEL_O AUTO PWR_O RIGHT_O LEFT_O AMBER_O TOUCH SWITCH 4P TOUCH SWITCH 4P GREEN_O POWER JST 8Pin PH2.0mm H JST 8Pin PH2.0mm H TOUCH SWITCH 4P TOUCH SWITCH 4P RIGHT TOUCH SWITCH 4P TOUCH SWITCH 4P...
  • Page 57 ON/OFF IC_VCC ENSYNC ABRT OUTL DBRT VCCL OUTR COMP VCCR DBRT JP10 IC_VCC TILE: FSP043-2PI02S (INVERTER) 3BS0128710GP size: A3 rev: 1.00 P/N: Alex_Lu Date: DESIGNER: 1-Mar-2006 PCB File: 43-2PI2SA0.PCB Sheet File: C:\Documents and Settings\alexlu\ 桌面 \43-2PI2SA0.ddb - Documents\43-2PI2A0S(I).SCH :7000P-0106 線路圖 表單編號...
  • Page 58 F101 CN100 TH101 LF102 C260 SW101 LF101 INVERTER R260 BD101 R101 F260 C261 C263 R112 T101 +12V C114 R102 +12V/0.4A C264 ZD260 R262 D260 R264 CY102 R113 CY104 D110 R121 R120 D240 L240 U101 +5.2V F240 11.12 +5.2V/3.0A Vstr Drain C235 R241 C243...
  • Page 59 Chapter 8 Power board Current set information Model Name Lamp Current JP10 AAM190PW011 LCD 19'' WXGA M190PW01 V.0 FOR ACER GP 6.5 mA When the lamp current value is 7.5MA, the jumper should be done as the picture left show.