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Acer M190E5-L0A Service Manual

Acer monitor service manual
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Acer AL1917
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 M190E5-L0A

  • Page 1 Acer AL1917 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 Humidity AC input voltage Brightness Contrast Resolution setting Color temperature Measuring instrument Others 1.2 Features 19” SXGA TFT LCD Panel TN Mode Liquid Crystal D-SUB/ DVI-D Input Audio Function (Optional) Support to 75Hz Refresh Rate Support VESA-DCC 2B plug &...
  • Page 9: Lcd Panel Specification

    Physical Dimension, weight Plug & Play Front key Function Audio & Speaker Specification M190E5-L0A 376.32 (H) x 301.056 (V) (19.0” diagonal) a-si TFT Active Matrix 1280 x R.G.B. x 1024 0.294 (H) x 0.294 (V) RGB Vertical Stripe 16.2M Normally White...
  • Page 10 Definition of Viewing Angle ( x, y): Normal x = y = 0º 12 o’clock direction = 90º = 90º 6 o’clock = 90º = 90º...
  • Page 11 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 12: Lcd Module

    Definition of Response Time (T Gray Level 255 100% Optical Response (4) Luminance, Chromaticity and CCT Measurement Measurement System Setup: The LCD module should be stabilized at given temperature for 15 minutes to avoid abrupt temperature change during measuring. In order to stabilize the luminance, the measurement should be executed after lighting Backlight for 15 minutes in a windless room.
  • Page 13: Chapter 2 Operating Instructions

    OPERATING INSTRUCTIONS 2.1 Function Name Front 2.1.1 Name Power Switch LED Indicator MENU > < AUTO Speaker Chapter 2 Descriptions Power On/Off Green Normal operation Orange Power management OSD control MENU button Right selection/ Volume button Left selection/ Volume button Adjust Clock, Phase, H Position and V Position automatically 2.5W x 2...
  • Page 14 Back 2.1.2 Name Lock hole D-Sub DVI-D IN (Optional) Audio IN (Optional) AC-In Kensington D-sub mini 15pin Connector 24 pin connector Phone Jack 3.5ψ AC Power Jack Descriptions...
  • Page 15: 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 16: 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 17 Adjustments for clock, phase and positions are saved for each signal timing. Except for these adjustments, all other adjustments have only one setting, which applies to all signal timings. The color will change from white to pink while the function is selected.
  • Page 18: Osd Function Definition

    2.5 OSD Function Definition Primary Secondary Secondary Directory Directory Directory Items Symbol Symbol Contrast Brightness Phase Clock Pulse Horizontal Vertical Warm Color Temp. Set up the color temp. to be warm white color Cold Color Temp. Set up the color temp. to be cold white color User Definition/Red User Definition/Green...
  • Page 19: 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 identify and automatically adjust the monitor. The LCD Monitor uses Display Data Channel (DDC) to send Extended Display Identification Data (EDID) to the computer system, so the computer system can be set to monitor auto adjust.
  • Page 20: Chapter 3 Machine Disassembly And Assembly

    MACHINE DISASSEMBLY AND ASSEMBLY 3.1 Disassembly Procedures Picture Chapter 3 Description...
  • Page 24: Machine Assembly

    3.2 Assembly Procedures...
  • Page 28: Chapter 4 Troubleshooting

    Troubleshooting 4.1 Abnormal Display Troubleshooting Chapter 4...
  • Page 30: Abnormal (On/Off, Lcd Display, K/B) Troubleshooting

    4.2 Abnormal (ON/OFF, LCD display, Keyboard) Troubleshooting...
  • Page 31: Abnormal (Bios, Osd, Other Display) Troubleshooting

    4.3 Abnormal (BIOS, OSD, Other Display) Troubleshooting...
  • Page 32: Audio Abnormal

    4.4 Audio Abnormal Troubleshooting...
  • Page 33: Chapter 5 Connector Information

    Connector Information 5.1 Function Block Diagram Audio In D-sub Analog Video AC Power OSD Key Pad / Audio Out Main Board DC/DC DC-5V DC-19V LIPS Chapter 5 Speaker 3.3V LCD Module Signal Backlight...
  • Page 34: Connector Location

    5.2 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 5.3 Audio Connector 5.4 AC Connector Pin No. Ground No connection (SDA) Horizontal sync (Composite sync) Vertical sync (SCL)
  • Page 35: Chapter 6 Fru

    FRU (Field Replaceable Unit) List Part List Picture Part name Description Chapter 6 Vendor Part...
  • Page 36 Picture Part name Description Vendor Part...
  • Page 38 Explosion Diagram...

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Al1917