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General| Screen Size | 20 inches |
|---|---|
| Resolution | 1600 x 900 |
| Panel Type | TN |
| Brightness | 250 cd/m² |
| Contrast Ratio | 1000:1 |
| Response Time | 5 ms |
| Connectivity | VGA, DVI |
| Aspect Ratio | 16:9 |
| Input Connectors | VGA, DVI |
| Viewing Angle | 160° horizontal, 160° vertical |
Details on Acer Inc.'s registered trademarks used within the manual.
Information regarding RoHS (Restriction of Hazardous Substance) directive compliance for products.
Essential safety guidelines and precautions for servicing the monitor equipment.
Statement regarding compliance, particularly for optical storage products with laser devices.
Overview of the service manual's structure, detailing the three levels of service provided.
Introduction to the G225HQ model, its key features, and specifications.
Detailed specifications for the monitor's power supply unit and its parameters.
Technical details on analog and digital signal interfaces, including pin assignments.
Specifications related to the monitor's video input capabilities and performance metrics.
Information on supported horizontal and vertical scan frequencies for display modes.
Details on the monitor's support for Plug & Play, DDC2B, and DDC-CI communication protocols.
List of supported display timings, resolutions, and associated clock frequencies.
Performance metrics for LCD panels, including resolution, contrast, and response time.
Specifications for the monitor's adjustable brightness range and conditions.
Details on the acoustical noise levels generated by the monitor during operation.
Operating and non-operating environmental conditions for temperature, humidity, and altitude.
Specifications related to vibration, drop, and shock tests for product transportation.
Requirements and standards for electrostatic discharge (ESD) protection during handling.
Electromagnetic Compatibility (EMC) standards and requirements for the product.
Information on product reliability metrics, including MTBF and CCFL lifetime.
Specifications detailing the audio output power, frequency response, and sound pressure level.
Physical dimensions and technological details of LGD and AUO LCD panels.
Optical performance data for LCD panels, including viewing angle and contrast ratio.
Defines the function and operation of the monitor's hardware control buttons.
Defines the functions and settings available through the On-Screen Display (OSD) menu.
Physical dimensions of the monitor bezel, with stand, and carton.
Net and gross weight specifications for the monitor, including packing.
Details on plastic materials used, including flammability, heat deflection, and UV stability.
Specifications for the product's carton, including material, strength, and stacking.
Details on container specifications for palletized and non-palletized shipments.
Specifications for product and package dimensions and weights.
Diagram illustrating the accessory sequence and packing components for the monitor.
An exploded view diagram showing all components for disassembly and assembly.
Step-by-step procedures for assembling the monitor components.
Step-by-step procedures for safely disassembling the monitor.
Procedure for aligning the monitor's functions and display settings.
Procedure for Auto Color Balance (ADC) calibration.
Steps for adjusting the monitor's color temperature settings.
Procedure for writing EDID (Extended Display Identification Data) into the monitor.
List of hardware required for firmware upgrade procedures.
Step-by-step guide for upgrading the monitor's firmware using the RTDTool.
Instructions on how to exit the Burn In mode on the monitor.
Procedure for setting the On-Screen Display (OSD) configuration for specific panels.
Explanation of user controls including power switch, LED indicators, and shortcut menu.
Guide to accessing and using the monitor's shortcut menu for quick settings.
Instructions for accessing and using Acer eColor Management modes.
Guide on how to adjust various picture quality settings via the OSD menu.
Guide on adjusting general settings like Wide Mode, DDC/CI, ACM, and Language via OSD.
Flowchart for troubleshooting common display issues like no display or unstable image.
Troubleshooting steps for issues related to the power board and backlight.
Troubleshooting guide for addressing problems with the monitor's audio functionality.
Overview of the G225HQ monitor's capabilities, including resolution and power management.
A block diagram illustrating the main components of the G225HQ LCD monitor.
Details on circuit implementations, including interface board block diagram and operations.
Schematic representation of the power board's functional blocks, including EMI filter.
Standard screw torque specifications for QCS type screws.
Standard screw torque specifications for QZB & QMX type screws.
Schematic details for the panel output section of the interface board.
Schematic details for the D-SUB input interface circuit.
Document history log, detailing revisions and changes made.
Schematic details for the DVI input interface circuit.
Schematic details for the scalar IC, responsible for image processing.
Schematic details for the MCU (Microcontroller Unit) 2120L.
Schematic details for various connectors and their associated components.
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