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Acer AL1512 Service Manual

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Acer AL1512
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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Table of Contents
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  Summary of Contents for Acer AL1512

  • Page 1 Acer AL1512 Service Guide Service guide files and updates are available on the CSD web : for more information, Please refer to http: csd.acer.com.tw...
  • Page 7: Table Of Contents

    Table of Contents Chapter 1 Monitor Features …………………………………………….…. 8 1.1 Test conditions……………………………………….……….… 8 1.2 Features…………………….…………………………………..8 1.3 LCD Panel specification………………………………………... 9 1.4 Connector Pin Assignment………………………...…..……...12 Chapter 2 OPERATING INSTRUCTIONS… ……..….………….……14 2.1 Function Name…………………………….…….………………14 2.2 OSD Menu Description…..……………….…….………………16 2.3 OSD Operation…………………………….…….………………17 2.4 OSD Function Definition……...………….……….…………….18 2.5 Plug and Play…………………………….…………………...…19 2.6 Power Saver……………………………………………………..19...
  • Page 8: Chapter 1 Monitor Features

    Chapter 1 Monitor Features Test Conditions Item Condition Temperature Normal room temperature (25¡ Ó 2¢ J ) Humidity 50¡ Ó 10% AC input voltage 100V¡ Ó 2V, 120¡ Ó 2V, 60Hz / 230¡ Ó 2V, 50Hz Signal Level 0.7Vp-p Brightness Maximum with OSD setting Contrast Middle with OSD setting...
  • Page 9: Lcd Panel Specification

    1.3 LCD panel Specification 1.3.1 Optical Specifications The relative measurement methods of optical characteristics are shown in 4.2. The following items should be measured under the test conditions described in 4.1 and stable environment shown in Note (4). Item Symbol Condition Min.
  • Page 10 Note (1) Definition of Viewing Angle (θx, θy): Normal θx = θy = 0º θy- θ θ 12 o’clock direction = 90º θ = 90º θx- θx+ 6 o’clock θ θ = 90º = 90º Note (2) Definition of Contrast Ratio (CR): The contrast ratio can be calculated by the following expression and figure below.
  • Page 11 Luminance of center point: L=L(5) Brightness Uniformity Measurement points: Five specified points 1-5 Formula: Maximum [L (1), L (2), L (3), L (4), L (5)]/Minimum [L (1), L (2), L (3), L (4), L (5)] Note (3) Definition of Response Time (T Gray Level 255 Gray Level 255 100%...
  • Page 12: Connector Pin Assignment

    1.4 Connector Pin Assignment 1.4.1 D-sub mini 15pin Connector Pin No. Pin Function Pin No. Pin Function Red video input Green video input Ground Blue video input (SDA) Horizontal synchronization Ground (Composite sync) synchronization Red video ground Vertical Green video ground (SCL) Blue video ground 1.4.2 DC Connector...
  • Page 13 1.4.3 Audio Connector (Optional) Phone Jack, d=3.5mm...
  • Page 14: Chapter 2 Operating Instructions

    Chapter 2 Operating Instructions 2.1 Function Names Front 2.1.1 Name Descriptions Power Switch Power On/Off LED Indicator Green Normal operation Orange Power management MENU OSD control MENU button > Right selection/ Volume button (AL1512m) < Left selection/ Volume button (AL1512m) AUTO Adjust Clock, Phase, H Position and V Position automatically...
  • Page 15 Back 2.1.2 Name Descriptions AUDIO-IN d=3.5mm stereo mini Jack VGA-IN D-sub mini 15pin Connector DC-IN DC Power Jack, d=2.0mm. Lock hole Kinglock...
  • Page 16: Osd Menu Description

    2.2 OSD Menu Description 1. Power : Press this key to control power ON/OFF of the Monitor. Green: Power is on and normal . Orange: Power off. Orange Sleep status in the energy-saving mode. 2. Menu : Press this button to enter OSD. Press it again to exit OSD. 3.
  • Page 17: Osd Operation

    2.3 OSD Operation Click MENU to display the OSD window as shown in the following figure. Click < or > to select the function to be adjusted as shown in the following figure. Click the MENU to select the function to be adjusted. Click <...
  • Page 18: Osd Function Definition

    2.4 OSD function definition Primary Secondary Secondary Description Directory Directory Directory Items Symbol Symbol Contrast Adjust the contrast between the foreground and background of an image on the screen Brightness Adjust the background brightness of the screen Phase Adjust the focus of the image (for analog input adjustment only) Clock Pulse Adjust the clock pulse of the image (for input...
  • Page 19: Plug And Play

    (for analog input only) Message Display resolution, H/V frequency and the input port used for current input timing function. Restore Restore to factory settings Exit Close the OSD window and save changes. 2.5 Plug and Play The product provides the latest VESA plug and play function to prevent complicated and time-consuming installation procedures.
  • Page 20: Chapter 3 Machine Disassembly And Assembly

    Chapter 3 Dissassembly and Reassembly 3.1 Disassembly Procedures Picture Description Push the hooks and stand bottom away Remove Hinge Cover Loosen and remove 6 screws to remove Stand Assy Loose and remove 5 screws. Separate Bezel hooks to take Bezel and Rear Cover apart.
  • Page 21 Pull out FFC from connectors at Switch Board and AD PCBA Loose and remove 2 Stand-Off screws Stand-Off Part No : 42A9940007 Loose and remove 1 screw Loosen & Remove 3 screws Open & Separate Metal Cover (PCB-X) Remove the Cover of main board Remove 3 Backlight wires.
  • Page 22 Lift up Inverter slightly, and Separate its head from the housing at AD PCBA Remove the taps on X-board FPC. Pull out the X-Board FPC Loose and remove 4 screws Remove AD PCBA Disassembly PCBA complete. Lift up LCD module and remove bezel. Separate both Audio Cable.
  • Page 23: Machine Assembly

    Loose and remove 2 screws. Take Function PCBA apart completed 3.2 Reassembly Procedures Place Function PCBA. Fasten 2 screws Insert Audit Cable to connectors . Bezel assembly complete. Place LCD module.
  • Page 24 Place new AD PCBA Fasten 4 screws Insert FPC to connector Shift Inverter with care ; plug its head into the housing at AD PCBA Fasten 3 fixed screws. Insert 3 Backlight wires Place Metal Cover (AD/Power-PCB) Place Metal Cover (PCB-X)
  • Page 25 Push the metal Cover (PCB-X) andforward to have the hook latched. Fasten 3 screws Fasten the screw Fasten 2 Stand-Off screws Place Rear Cover Join hooks of Rear Cover with Bezel Fasten 5 screws Place Stand Assy. Fasten 6 screws...
  • Page 26 Insert Stand Cover Have the hook latched...
  • Page 27: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting 4.1 Abnormal Display Troubleshooting...
  • Page 29: Abnormal (On/Off, Lcd Display, K/B) Troubleshooting

    4.2 Abnormal (ON/OFF, LCD display, Keyboard ) Troubleshooting...
  • Page 30: Abnormal (Bios, Osd, Other Display) Troubleshooting

    4.3 Abnormal (BIOS, OSD, Other Display ) Troubleshooting...
  • Page 31: Audio Abnormal

    4.4 Audio Abnormal Troubleshooting...
  • Page 32: Chapter 5 Connector Information

    Chapter 5 Connector Information 5.1 Function block Diagram OSD Key Speaker Audio Audio In 3.3V Main D-sub Signal Analog Video DC/D DC12V Inverter DC -12V Backlight...
  • Page 33: Connector Location

    5.2 Connector Location...
  • Page 34: Main Board Pin Assignment Introduction

    5.3 Main Board Pin Assignment Introduction 5.3.1 CN2 Pin assignment Pin No. Symbol Description STV1 SCAN IC START PULSE SCAN DATA OUTPUT ENABLE SCAN IC CLOCK GROUND STH1 SHIFT START PULSE I/O REV1 DATA INVERSION INPUT REV2 DATA INVERSION INPUT POLARITH INVERTING DATA LATCH GROUND...
  • Page 35 DATA IC VOLTAGE DATA IC VOLTAGE DATA IC VOLTAGE VDDY DRIVER SUPPLY VOLTAGE VDDY DRIVER SUPPLY VOLTAGE DRESTOUT OUTPUT ALL-ON CONTROL PANEL VGL PANEL DRIVING VOLTAGE PANEL VGL PANEL DRIVING VOLTAGE GROUND PANEL VGH PANEL DRIVING VOLTAGE PANEL VGH PANEL DRIVING VOLTAGE GROUND 5.3.2 CN3 Pin assignment Pin No.
  • Page 36 ODD PATH RED DATA BIT ODD PATH RED DATA BIT ODD PATH RED DATA BIT ODD PATH RED DATA BIT ODD PATH RED DATA BIT ODD PATH RED DATA BIT GROUND ODD PATH GREEN DATA BIT ODD PATH GREEN DATA BIT ODD PATH GREEN DATA BIT ODD PATH GREEN DATA BIT ODD PATH GREEN DATA BIT...
  • Page 37 5.3.4 CN5 Pin assignment Pin No. Symbol Description AUTO_ADJ AUTO ADJUSTMENT EXIT EXIT KEY MENU MENU KEY GROUND UP KEY LED OR ORANGE LED LED GR GREEN LED POWER_KEY POWER KEY HP_Detector HEADPHONE DETECT DOWN DOWN KEY AUDIO/R- AUDIO OUTPUT AUDIO/R+ AUDIO OUTPUT AUDIO/L-...
  • Page 38 5.3.5 JP1 Pin assignment Pin No. Symbol Description GRAI RED INPUT GGAI GREEN INPUT GBAI BLUE INPUT GROUND RGND RED INPUT GROUND GGND GREEN INPUT GROUND BGND BLUE INPUT GROUND VGA_5V VGA INPUT 5V GND_ANA GROUND DSUB-SDA G_HSYNC H-SYNC G_VSYNC V-SYNC DSUB_SCL...
  • Page 39: Chapter 6 Fru

    Chapter 6 FRU (Field Replaceable Unit) List Part List Picture Partname Description Vendor Part No. Adapter Adaptor(AC/DC),40W,12 2719040122 V,3.33A,UP04081120- FUNCTION PCBA ,Rigid,201-0M 35A15K0218 BUTTON BOARD INVERTER DC/AC 2714000001 BOARD INVERTER,TWS-444- 936, TYP.2400V/5MA Main Board PCBA ,Rigid,203-03 35A15S0236 CABLES 3241500004 AD_OSD_GROUNDING, TennRich,121.5*9.5mm AUDIO 28AWG,180 cm...
  • Page 40 MONITOR 427C,30AWG,180cm 32F3018001 CABLE STAND Seat Assy, 40A15929D3 BASE Bezel Assy 40A1529947 FRONT BEZEL LCD BACK Rear Assy 40A15929C4 COVER Hinge Cover Cover Hinge 40A15929D5 MAINBOAR Cover_pcb_ad, D-Sub 41A1599115 D COVER Only METAL COVER PCB-X, 41A1599116 BRACKET...
  • Page 41: Explosion Diagram

    Explosion Diagram 1.BEZEL_W/_SPEAKER_ASSY 2.OSD PCBA 3.SCREW 4.PANEL ASSY 5.PET_FILM_METAL_FRAM_R 6.INVERTER 7.SMART PCBA 8.FFC AD_OSD 9.SCREW 10.PET ISOLUTION FILM 11.METAL COVER SMART 12.STAND-OFF 13.REAR_ASSY 14.SCREW 15.SEAT_ASSY 16.STAND_ASSY 17.SCREW 18.STAND HINGE_COVER...
  • Page 42: Chapter 7 Schematic Diagram

    Chapter 7 Schematic Diagram Main Board...