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Acer AL1906 - User Manual

Acer AL1906
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Acer AL1906
Service Guide

Questions and Answers

  • M
    Mark KnightJul 30, 2025
    How to fix Acer Monitor when it has no power?
    • B
      Brett WaltersJul 31, 2025
      If your Acer Monitor isn't turning on, try these steps: First, reinsert the AC power cord, ensuring it's properly connected and that the power outlet provides 100-240V. If that doesn't work, reinsert the power cord again or inspect the power section. Other solutions include replacing components U701 and U702, replacing U401, or replacing X401.
  • R
    Ronald MendezAug 7, 2025
    What to check if Acer Monitor has no power?
    • E
      Eric CalderonAug 7, 2025
      If your Acer Monitor isn't receiving power, check the voltage of C904(+). Also, check the start voltage for pin3 of IC901. Other components to inspect include R903, R904, and IC901. Verify that the auxiliary voltage is between 10V-16V. You can also check IC901, T901, ZD901, D903, D910, D911, and IC902.
  • C
    Carolyn WarrenAug 14, 2025
    What to do if my Acer AL1906 has no picture and the LED is orange?
    • L
      Lisa DiazAug 14, 2025
      If your Acer Monitor's LED is orange but there's no picture, try these troubleshooting steps: First, check if the sync signal is being output from the computer and that the video cable is properly connected. If not, input the sync signal from the computer or try changing the cable. If the issue persists, consider replacing components U701 and U702, replacing X401, or replacing U401.
  • B
    brett01Aug 22, 2025
    What to do if there is a problem with the panel power circuit on Acer Monitor?
    • H
      hthomasAug 22, 2025
      If there is a problem with the panel power circuit of your Acer Monitor, replace the panel.

Summary

Preface and Safety Information

FCC Compliance and Warnings

Provides information on FCC compliance and potential interference issues.

Product Precautions and LCD Notes

General Usage Precautions

Details safety and operational precautions for monitor usage.

LCD Monitor General Specifications

Key Display and Interface Specifications

Lists general technical specifications like panel type, resolution, and interface.

LCD Panel Specifics

Panel Model and Optical Performance

Details the panel model and its optical performance metrics.

Supported Timing and Modes

Front Bezel Operations

Rear Bezel Connections

Front Panel Control Functions

Picture Adjustment Guide

OSD Control Functions

Chapter 3 Machine Disassembly

Base Disassembly Procedure

Step-by-step guide to remove the monitor's base stand.

Front Cover and Bezel Removal

Instructions for removing the front bezel and rear cover.

Main Board Removal Procedure

Steps to detach the main board from the monitor assembly.

Power Board Removal Procedure

Instructions for removing the power board assembly.

Chapter 4 Troubleshooting

No Power Troubleshooting Guide

Diagnostic steps for when the monitor does not power on.

No Picture (Orange LED) Troubleshooting

Steps for diagnosing issues when the monitor displays no picture.

Panel Power and Keypad Board Troubleshooting

Troubleshooting for panel power and keypad board functionality.

PWPC and No Backlight Failure Diagnosis

Diagnosing problems related to power supply and backlight.

Chapter 5 Connector Information

Chapter 6 FRU List

Chapter 7 Schematic Diagrams

Power Supply Schematics

Power Board and Inverter Schematics

Inverter Circuit Details

Acer AL1906 Specifications

General IconGeneral
Screen Size19 inches
Resolution1280 x 1024
Panel TypeTN
Brightness300 cd/m²
Contrast Ratio700:1
Response Time5 ms
Input ConnectorsVGA
Aspect Ratio5:4

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