To Next PageTo Next PageWhat to do if my Acer Monitor has no display and the LED is amber?
If your Acer Monitor screen is black, and the LED is amber, make sure the sync signal from your computer is being outputted. Also, verify that the video cable is correctly connected. You may need to input the sync signal from the computer or try changing the cable. You can also proceed by checking the resolution change IC movement.
Why is there nothing displaying on my Acer X203 (screen is black, color of LED is blue)?
If your Acer Monitor displays nothing on the screen, but the LED is blue, try the following: 1) Change the pattern of the video signal output on the host. 2) Reconnect the video cable. 3) Change the video cable. You can also refer to the section on checking the backlight unit or proceed to the 'Abnormal screen detection' section.
How to check the DC/DC converter circuit on Acer X203?
To check the DC/DC converter circuit in your Acer Monitor, verify that 5V is output from P301 pin5 and pin6, and that 5V is input to I302 pin3. Also, confirm that 3.3V is output and input to Q305 pin1, and that 1.8V is output.
Details on RoHS compliance and approved component usage for product safety and reliability.
Emphasizes the importance of qualified service providers and trained engineers for safe and reliable product repair.
Defines design and performance requirements for a 20/22W inch flat panel monitor with WSXGA resolution TFT-LCD.
Outlines general requirements including test conditions and test equipment for monitor qualification and production.
Specifies test conditions for brightness, contrast, warm-up, and ambient light using a luminance meter.
Details the Chroma 2135 video generator or equivalent used for product qualification and production testing.
Covers electrical requirements and block diagram of the monitor's sub-systems.
Details the pin assignments and descriptions for D-SUB and DVI connectors used for video and DDC interfacing.
Explains video signal amplitudes, termination impedance, sync signals, and signal levels for optimal display performance.
Describes analog video signal levels and termination requirements for accurate display.
Specifies the required resistive termination impedance for analog video signals to ensure signal integrity.
Explains the function of Horizontal and Vertical Sync TTL signals for initiating display frames and lines.
Defines the TTL logic levels and hysteresis required for accepting synchronization signals from the host.
Specifies the current sourcing and sinking capabilities for TTL input loads on sync signals.
Details the monitor's robustness against improper sync timing and abnormal input signal conditions.
Describes the monitor's front panel controls, power indicator LED, and On-Screen Display (OSD) system.
Details the location and function of the front-mounted power control switch.
Explains the use of an LED indicator to show the monitor's power status.
Describes the OSD system's operation, menu navigation, and automatic adjustment features.
Lists the adjustable parameters available through the OSD menu for display configuration.
Covers the monitor's synchronization capabilities with various vertical and horizontal frequencies.
Specifies the monitor's synchronization range for vertical and horizontal frequencies and its response to out-of-range inputs.
Details the 19 factory pre-set video modes and their impact on screen performance.
Explains how the monitor recognizes and synchronizes with preset input modes within specified frequency tolerances.
Describes the functionality for storing and recalling up to 9 user-defined display modes.
Outlines the controller's role in converting video signals and insulating the panel from CPU timing variations.
Details the controller's functions including PLL, A/D converters, and LVDS transmitter for panel signal conversion.
Explains the monitor's ability to automatically expand input signals to fill the entire screen.
Discusses the controller's responsibility for panel timing and ensuring protection against input signal damage.
Specifies requirements for the DC-AC inverter used to power the backlight assembly.
Details the specifications for the external AC to DC converter power supply brick.
Describes the VESA DDC2Bi compliant communication channel for display information exchange.
Explains the process for updating monitor firmware using the D-Sub connector and DDC I2C bus.
Covers the electrical specifications related to the TFT-LCD panel.
States that the panel used must be WSXGA resolution, 20/22W, TFT-LCD and approved for the monitor.
Details the controller's role in translating CPU timings for the panel and preventing damage.
Specifies the hardness value requirement for the front polarizer panel coating.
Outlines requirements for the backlight assembly, including field replacement and lamp life.
Covers design for field replacement and specifies a continuous operating life of at least 40,000 hours for the lamps.
Specifies the startup time for the backlight lamps, which should be approximately 2 seconds.
Details the criteria for evaluating panel defects through visual inspection and measurement.
Describes the process for inspecting the LCD panel with various color patterns to check for defects.
Addresses acceptable variations in panel parameters over the product's life and potential defects.
Sets criteria for no visible light emission from areas outside the active display.
Lists specific criteria for cosmetic defects allowed for the P20/22 W Series.
Provides descriptive terms for classifying various types of display defects.
Defines acceptable surface conditions regarding smudging, streaking, or smearing on the panel.
Addresses undefined defects that require review and disposition by Lite-On.
Outlines the procedure for inspecting the LCD panel under specific illuminance levels and defect limits.
Refers to LCD supplier specifications for optical characteristics and QA inspection.
Details the main On-Screen Display menu structure and control functions for monitor adjustments.
Explains the functionality of hot-keys for quick access to specific monitor adjustments like volume.
Describes various messages displayed on the OSD related to auto-configuration, input support, and cable connection status.
Provides instructions for entering and operating in different scenario modes.
Detailed steps for operating in scenario modes, including auto-scan and manual adjustments.
Explains how to enable or disable the DCC/CI function via the OSD menu.
Illustrates the exploded view of the monitor's packaging contents and assembly.
Provides a detailed exploded view of the monitor's internal components and their assembly sequence.
Step-by-step guide for assembling the monitor unit, including connecting cables and mounting components.
Step-by-step guide for disassembling the monitor unit, covering removal of bezels, boards, and panels.
Guides on diagnosing and resolving issues where the screen remains black or the LED indicates no signal.
Provides troubleshooting steps for when the screen is black and the power LED is blue, indicating backlight issues.
Detailed procedure for diagnosing problems related to the backlight unit and inverter.
Steps to troubleshoot abnormal screen display issues related to VGA input signals.
Addresses issues related to incorrect or abnormal display adjustments via the On-Screen Display.
Troubleshooting guide for Plug and Play functionality issues with VGA connections.
Verifies the integrity of sync signals within the monitor's interface circuitry.
Focuses on diagnosing issues with the horizontal sync pulse control circuit.
Guides on checking the resolution change IC and related signals for proper operation.
Provides steps to diagnose and troubleshoot the DC/DC converter circuit for power supply issues.
Presents the overall block diagram of the ACER LCD X203W monitor system.
Provides the schematic diagram for the ACER LCD X203W monitor's power board.
Shows the schematic layout for the top side of the ACER LCD X203W interface board.
Details the schematic for the interface board's power-related components.
Presents the schematic for the interface board's VGA and DDC circuitry.
Provides the schematic for the interface board's scaler IC and related components.
Shows the schematic for the interface board's key and panel connection interfaces.
Details the schematic for the monitor's function key board.
Illustrates the physical layout of components on the ACER LCD X203W power board.
Shows the physical component layout for the ACER LCD X203W interface board.
Depicts the physical layout of components on the ACER LCD X203W function key board.
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