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Acer AL1703 Service Manual

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Acer AL1703
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 AL1703

  • Page 1 Acer AL1703 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 Item Active Area Driver Element Pixel Number Pixel Pitch Pixel Arrangement Display Color Tran missive Mode LCD panel Viewing Angle (H/V) Brightness Contrast Ratio LC Response Time (Tr+Tf) Separate Sync. Horizontal Sync. Graphic Vertical Sync. Input Connector Auto Adjust Screen Scaling Power...
  • Page 10 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 (5).
  • Page 11 Measurement Setup: The LCD module should be stabilized at given temperature for 20 minutes to avoid abrupt temperature change during measuring. In order to stabilize the luminance, the measurement should be executed after lighting Backlight for 20 minutes in a windless room. LCD Module LCD Panel Center of the Screen...
  • Page 12: Chapter 2 Operating Instructions

    OPERATING INSTRUCTIONS 2.1 Function Name Front 2.1.1 Power Switch Power on / Power off Green/Blue Normal operation Orange Power Management Indicator Power off AUTO/ EXIT Adjust Clock, Phase, H Position and V Position automatically / Exit Turbo Brightness Switch TURBO (Picture mode / Text mode / Economy mode) D-Sub, DVI Input Source Selection/Turbo INPUT/TURBO...
  • Page 13 Back 2.1.2 Name AUDIO-IN VGA-IN DC-IN Lock hole Descriptions d=3.5mm stereo mini Jack D-sub mini 15pin Connector DC Power Jack, d=2.0mm. Kinglock...
  • 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. Auto/Exit : When the input signal source is PC, used to execute auto adjustment 3.
  • Page 15: Osd Control

    2.3 OSD Control Press the “Menu” button to start the OSD feature. Click the “+” or “-“ button to select the function to be adjusted. Click the “Menu” button to access into the function to be adjusted. Click the “+” or “-“ button to change the current setting of the function. To exit the OSD menu or go back to the previous action by clicking the “Auto/Exit”...
  • Page 16: Osd Function Definition

    2.5 OSD Function Definition Primary Secondary Directory Directory Image Brightness Contrast Clock Phase H. Position V. Position Sharpness Audio Volume Mute Color 9300K 7500K 6500K User/Red User/Green User/Blue Language English Français Italiano Deutsch Español 日本語 ? ? ? ? 繁體中文 Settings OSD Timeout Adjust OSD display time setting.
  • Page 17: Plug And Play

    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 i d entify and automatically adjust the monitor.
  • Page 18: 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 6 screws to remove Stand Assy Loose and remove 2 screws. Separate Bezel hooks to take Bezel and Rear Cover apart.
  • Page 19 Remove FFC Loose and remove screw and remove Cover-FFC Loose and remove 2 screws Loose and remove 5 screws Remove the Cover of X-PCB Remove 4 pieces of Backlight wires. Loose and remove 4 screws Remove Power PCBA...
  • Page 20 Remove 2 pieces of FFC from AD PCBA Loose and remove 1 screw Remove AD PCBA Disassembly PCBA complete. Loose and remove 4 crews Lift up LCD module and remove bezel. Remove FFC. Separate both Audio Cable.
  • Page 21: Machine Assembly

    Loose and remove 3 screws. Take OSD PCBA apart 3.2 Assembly Procedures Place OSD PCBA. Fasten 3 screws Insert Audit Cable to connectors of OSD PCBA Bezel assembly complete. Insert FFC.
  • Page 22 Place LCD module. Fasten 4 fixed screws Insert new AD PCBA Insert 2 pieces of FFC to AD PCBA . Insert new Power PCBA Fasten 4 fixed screws of Power PCBA Insert 4 pieces of Backlight wires Fasten 5 screws...
  • Page 23 Join the cover hooks of X-PCB and fasten the screw Fasten 2 screws Place Cover-FFC and fasten screw Insert FFC Attach the Tinfoil Place Rear Cover Join hooks of Rear Cover with Bezel Fasten 2 screws...
  • Page 24 Place Stand Assy. Fasten 6 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 DC Connector 5.5 Audio Connector (Optional) 5.6 Main Board Pin Assignment Introduction 5.6.1 CN-B Pin Assignment Pin No.
  • Page 33 5.6.2 CN-A1 Pin Assignment Pin No. Symbol VCOM VCOM VCOM VCOM ESTH EB2P EB2N EB1P EB1N EB0P EB0N EG2P EG2N EG1P EG1N EG0P EG0N GMA10 GMA9 GMA8 GMA7 GMA6 GMA5 GMA4 GMA3 GMA2 GMA1 ECLKP ECLKN Description PANEL COMMOM VOLTAGE PANEL COMMOM VOLTAGE PANEL COMMOM VOLTAGE PANEL COMMOM VOLTAGE...
  • Page 34 ER2P ER2N ER1P ER1N ER0P ER0N 5.6.3 CN-A2 Pin Assignment Pin No. Symbol PANEL_VGL PANEL_VGL PANEL_VHL PANEL_VHL GVOFF OB2P OB2N OB1P OB1N OB0P OB0N OG2P OG2N OG1P OG1N OG0P OG0N GROUND EVEN PATH RED DATA BIT EVEN PATH RED DATA BIT EVEN PATH RED DATA BIT EVEN PATH RED DATA BIT EVEN PATH RED DATA BIT...
  • Page 35 OCLKP OCLKN OR2P OR2N OR1P OR1N OR0P OR0N OSTH 5.6.4 CN-C Pin Assignment Pin No. Symbol AUDIO/L- AUDIO/L+ AUDIO/R- AUDIO/R+ PWR_SW LED_O LED_G AUTO_ADJ SOURCE_SEL KEY_UP KEY_DOWN MENU ODD PATH CLOCK ODD PATH CLOCK GROUND DATA LATCH POLARITH INVERTING GROUND ODD PATH RED DATA BIT ODD PATH RED DATA BIT ODD PATH RED DATA BIT...
  • Page 36 5.6.5 CN-E Pin Assignment Pin No. Symbol VGA_5V VGA_SDA VGA_HS VGA_VS VGA_SCL Description RED INPUT GREEN INPUT BLUE INPUT GROUND GROUND RED INPUT GROUND GREEN INPUT GROUND BLUE INPUT GROUND VGA INPUT 5V GROUND GROUND H-SYNC V-SYNC...
  • Page 37: Chapter 6 Fru

    FRU (Field Replaceable Unit) List Part List Picture Partname Description Adapter FUNCTION BUTTON BOARD INVERTER BOARD Main Board AL1703 MAINBOARD CABLES CABLE Chapter 6 ADAPTER 3.16A 60W 3PIN UP060B1190-01B PCBA For A170E1- T,A170E1-H01-K DC/AC Inverter,TWS- 444- 957,2560V(min)/5mA(typ (FIRMWARE CONTROL BOARD)
  • Page 38 AUDIO CABLE MONITOR CABLE Picture Part name Description STAND BASE FRONT BEZEL LCD BACK COVER LCD STAND NECK Hinge Cover ABS Black 18AWG,180cm,Black,JC 30AWG,180cm,Black,JC ABS, Black Bezel Assy Rear Assy Stand Hinge Assy, SCREW-B,Black 32F2818004 32F3018003 Vendor Part No. 40A1792211 40A1729245 40A1799909 40A1799217...
  • Page 39 MAINBOAR Cover_pcb_ad,D-Sub D COVER Only Cover-FFC COVER 41A1799107 41A1799102...
  • Page 41: Chapter 7 Schematic Diagram

    Schematic Diagram Main Board Chapter 7...
  • Page 43 GNDR VGA_5V GNDG DDC_CLK DDC_CLK DDC_DAT DDC_DAT GNDB ST_DET1 ST_DET1 HSYNC V5A_ESD VSYNC V5A_ESD 10/20 CLK+ ST_DET2 CLK- VDVI C129 C129 VGA_5V VGA_5V DDC_CLK DDC_DAT ST_DET1 ST_DET2 ST_DET2 AUDIO/L+ AUDIO/L+ AudioL+ AUDIO/L- AUDIO/L- AudioL- AUDIO/R+ AUDIO/R+ AudioR+ HWRESET AUDIO/R- AUDIO/R- AudioR- MUTE MUTE...
  • Page 44 0805/42 0805/42 2,3,4,5,8 C108 C108 1206/22U/10V/Y5V 1206/22U/10V/Y5V 0805/42 0805/42 C114 C114 1206/22U/10V/Y5V 1206/22U/10V/Y5V 0805/42 0805/42 C121 C121 1206/22U/10V/Y5V 1206/22U/10V/Y5V V33D1 V33D1 2101117STS 2101117STS V33D V33D VI(5V) VO(3.3V) VO(3.3V) C109 C109 C110 C110 C111 C111 (Digital VCC) 0603/0.1u/25V 0603/0.1u/25V 0603/0.1u/25V 0603/0.1u/25V 1206/22U/10V/Y5V 1206/22U/10V/Y5V V33A1...