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Acer AL1913 Service Manual

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Acer AL1913c
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 AL1913

  • Page 1 Acer AL1913c 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 1.1 Test Conditions… … … … … … … … … … … … … … … .… … … … 8 1.2 Features… … … … … … … … .… … … … … … … … … … … … .… ... 8 1.3 LCD Panel Specification…...

  • Page 8: Chapter 1 Monitor Features

    Monitor Features Test Conditions Item Temperature Normal room temperature (25± 2℃) Humidity 50± 10% AC input voltage 100V± 2V, 120± 2V, 60Hz / 240± 2V, 50Hz Brightness Maximum with OSD setting Contrast Middle with OSD setting Resolution setting 1280 x 1024 @60HZ Color temperature With OSD setting Measuring instrument...

  • Page 9: Lcd Panel Specification

    1.3 LCD panel Specification Technical Specifications Panel Dimension Max. Resolution Max. Pixel Pixel Span Panel Brightness (Back Light Source) Contrast Response Time Visual Angle Effective Display Signal Mode Input Signal SYNC Frequency Max. Pixel Clock Image Input Terminal Audio Power Transformer Power Consumption Temperature Environmental...
  • Page 10 Definition of Viewing Angle ( x, y): = 90º 6 o’clock = 90º Definition of Contrast Ratio (CR): The contrast ratio can be calculated by the following expression and figure below. Contrast Ratio (CR) = L255 / L0 L255: Luminance of gray level 255 L 0: Luminance of gray level 0 CR = CR (5) CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note...

  • Page 11: Lcd Module

    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)] Definition of Response Time (T Gray Level 255 100% Optical...

  • Page 12: Chapter 2 Operating Instructions

    OPERATING INSTRUCTIONS 2.1 Function Name Front 2.1.1 Name Power Switch Power On/Off LED Indicator Green Orange MENU OSD control MENU button > Right selection/ Volume button (AL1714m/AL1714bm) < Left selection/ Volume button (AL1714m/AL1714bm) AUTO Adjust Clock, Phase, H Position and V Position automatically Speaker 2.5W x 2 Chapter 2...
  • Page 13 Back 2.1.2 Name D-Sub Audio IN DC-In Lock hole Descriptions D-sub mini 15pin Connector DVI-D 24pin Connector Phone Jack 3.5ψ DC Power Jack, d=3.0mm Kensington...

  • Page 14: Osd Menu Description

    2.2 OSD Menu Description 1. POWER : Press this key to control power ON/OFF of the Monitor. Green: normal display. Orange flicker: no signal input. Orange: power off. 2. MENU : Press this button to enter OSD. Press it again to exit OSD. 3.

  • Page 15: Osd Control

    2.3 OSD Control 1. Click MENU to display the OSD window as shown in the following figure. 2. Click < or > to select the function to be adjusted as shown in the following figure. 3. Click the MENU to select the function to be adjusted. 4.
  • Page 16 The OSD disappears several seconds after you stop pressing the buttons while performing an adjustment. Any changes are automatically saved in the memory when the OSD disappears. Turning off the power should be avoided while using the menu. Adjustments for clock, phase and positions are saved for each signal timing.

  • Page 17: Osd Function Definition

    2.5 OSD Function Definition Primary Secondary Directory Directory Symbo Symbol Secondary Description Directory Items 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 analog...

  • Page 18: Plug And Play

    Message Restore Exit 2.6 Plug and Play The new VESA Plug and Play function is used which eliminates the complicated and time-consuming installation process. You can use the Plug and Play system without encountering usual installation problems. Your computer system can easily identify and automatically adjust the monitor.

  • Page 19: Chapter 3 Machine Disassembly And Assembly

    MACHINE DISASSEMBLY AND ASSEMBLY 3.1 Disassembly Procedures Picture Push the hooks and stand bottom away Remove Hinge Cover Loosen and remove 4 screws Remove Stand Assy Loose and remove 5 screws. Separate Bezel hooks to take Bezel and Rear Cover apart.
  • Page 20 Lift up Rear Cover Loose and remove 2 screws Loose and remove 3 screws Remove FFC Remove the Cover of X-PCB Loose and remove 3 screws Remove Power PCBA Remove 2 pieces of FFC from AD PCBA...
  • Page 21 Loose and remove 4 screws Remove AD PCBA Lift up LCD module and remove bezel. Remove FFC. Separate both Audio Cable. Loose and remove 2 screws. Take OSD PCBA apart...

  • Page 22: Machine Assembly

    3.2 Assembly Procedures Place OSD PCBA. Fasten 2 screws Insert Audit Cable to connectors of OSD PCBA Bezel assembly complete. Insert FFC. Place LCD module. Insert new AD PCBA...
  • Page 23 Fasten 4 fixed screws of AD PCBA Insert 2 pieces of FFC to AD PCBA . Insert new Power PCBA Fasten 3 fixed screws of Power PCBA Join the cover hooks of X-PCB Fasten 3 screws Fasten 2 screws Insert FFC...
  • Page 24 Place Rear Cover Join hooks of Rear Cover with Bezel Fasten 5 screws Place Stand Assy. Fasten 4 screws Insert Stand Cover Have the hook latched...

  • Page 25: Chapter 4 Troubleshooting

    Troubleshooting 4.1 Abnormal Display Troubleshooting Chapter 4...

  • Page 27: Abnormal (On/Off, Lcd Display, K/B) Troubleshooting

    4.2 Abnormal (ON/OFF, LCD display, Keyboard ) Troubleshooting...

  • Page 28: Abnormal (Bios, Osd, Other Display) Troubleshooting

    4.3 Abnormal (BIOS, OSD, Other Display ) Troubleshooting...

  • Page 29: Audio Abnormal

    4.4 Audio Abnormal Troubleshooting...

  • Page 30: Chapter 5 Connector Information

    Connector Information 5.1 Function Block Diagram Audio Audio In DVI-D Digital Video D-sub Analog Video DC/D DC -19V OSD Key Speaker Main DC-19V Inverter Chapter 5 3.3V Signal Backlight...

  • Page 31: Connector Location

    5.2 Connector Location...

  • Page 32: D-Sub Mini 15Pin Connector

    5.3 D-sub Mini 15pin Connector Pin No. Pin Function Red video input Green video input Blue video input Ground Red video ground Green video ground Blue video ground 5.4 DVI-D 24pin Connector Pin No. Pin Function T.M.D.S Data 2- T.M.D.S Data 2+ T.M.D.S Data 2 Ground Clock line (SCL) Data line (SDA)

  • Page 33: Audio Connector

    5.6 Audio Connector (Optional) 5.7 Main Board Pin Assignment Introduction 5.7.1 CN1 Pin assignment Pin No. Symbol INV_ADJ INV_ON/OFF VIN_19V VIN_19V VIN_19V 5.7.2 CN2 Pin assignment Pin No. Symbol AUDIO/L- AUDIO/L+ AUDIO/R- AUDIO/R+ PWR_SW LED_O LED_G KEY_UP KEY_DOWN MENU AUTO_ADJ SOURCE_SEL Phone Jack, d=3.5mm Description...
  • Page 34 5.7.3 CN3 Pin assignment Pin No. Symbol PANEL_VGL PANEL_VGL PANEL_VGL PANEL_VGH PANEL_VGH VCOM EB0N EB0P EB1N EB1P EB2N EB2P ECLKN ECLKP EG0N EG0P EG1N EG1P EG2N Description SCAN DATA OUTPUT ENABLE SCAN IC CLOCK GROUND SCAN IC VOLTAGE SCAN IC VOLTAGE PANEL DRIVING VOLTAGE SCAN IC START PULSE PANEL DRIVING VOLTAGE...
  • Page 35 EG2P ER0N ER0P ER1N ER1P ER2N ER2P ESTH 5.7.4 CN4 Pin assignment Pin No. Symbol VCOM VCOM VCOM OB0N OB0P OB1N OB1P OB2N OB2P OCLKN OCLKP GMA1 GMA2 GMA3 GMA4 GMA5 EVEN PATH BLUE DATA BIT GROUND EVEN PATH BLUE DATA BIT EVEN PATH BLUE DATA BIT EVEN PATH BLUE DATA BIT EVEN PATH BLUE DATA BIT...
  • Page 36 GMA6 GMA7 GMA8 GMA9 GMA10 OG0N OG0P OG1N OG1P OG2N OG2P OR0N OR0P OR1N OR1P OR2N OG2P OSTH DATA IC VOLTAGE DATA IC VOLTAGE DATA IC VOLTAGE GAMMA VOLTAGE GAMMA VOLTAGE GAMMA VOLTAGE GAMMA VOLTAGE GAMMA VOLTAGE GROUND ODD PATH GREEN DATA BIT ODD PATH GREEN DATA BIT ODD PATH GREEN DATA BIT ODD PATH GREEN DATA BIT...

  • Page 37: Chapter 6 Fru

    FRU (Field Replaceable Unit) List Part List Picture Partname Description Adapter (Black) FUNCTION BUTTON BOARD INVERTER BOARD Main Board AL1913 MAINBOARD CABLE Chapter 6 ADAPTER 3.42A 65W 3PIN BLACK PCBA FOR A190E2 INVERTER BOARD TWS-444-983 FFC AD- OSD,15PIN,PITCH1.0M M,A190E2-H04 Vendor Part No.
  • Page 38 CABLE MONITOR CABLE (BLACK) AUDIO CABLE (BLACK) Picture Part name Description STAND BASE FRONT BEZEL LCD BACK COVER LCD STAND NECK FFC_X, A190E2,45PIN,60X23M M,PITCH=0.5MM MONITOR CABLE,180CM, BLACK AUDIO CABLE,180CM,BLACK ABS, Black, Bezel Assy, W/SPK, BLACK Rear Assy, W/AUDIO,BLACK STAND ASSY,BLACK 3241902003 32F3018003 32F2818004...
  • Page 39 Hinge Cover COVER HINGE,BLACK 40A1992206 MAINBOAR COVER AD,A190E2 41A1999106 D COVER...

  • Page 41: Chapter 7 Schematic Diagram

    Schematic Diagram Main Board Chapter 7...

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