Acer X193w – LCD monitor – disassembly – power and scalar board circuit diagram
This monitor will appear to be non-functional if there is no video input
signal. In order for this monitor to operate properly, there must be a
video input signal.
The monitor meets the Green monitor standards as set by the Video Electronics Standards Association (VESA) and/or the United States Environmental Protection Agency (EPA) and The Swedish Confederation Employees (NUTEK). This feature is designed to conserve electrical energy by reducing power consumption when there is no video-input signal present. When there is no video input signals this monitor, following a time-out period, will automatically switch to an OFF mode. This reduces the monitor's internal power supply consumption. After the video input signal is restored, full power is restored and the display is automatically redrawn. The appearance is similar to a "Screen Saver" feature except the display is completely off. Pressing a key on the keyboard, or clicking the mouse restores the display.
The monitor is equipped with VESA DDC2B capabilities according to the
VESA DDC STANDARD. It allows the monitor to inform the host system of
its identity and, depending on the level of DDC used, communicate
additional information about its display capabilities.
The DDC2B is a bi-directional data channel based on the I²C protocol. The host can request EDID information over the DDC2B channel. Disassemble procedure
The monitor meets the Green monitor standards as set by the Video Electronics Standards Association (VESA) and/or the United States Environmental Protection Agency (EPA) and The Swedish Confederation Employees (NUTEK). This feature is designed to conserve electrical energy by reducing power consumption when there is no video-input signal present. When there is no video input signals this monitor, following a time-out period, will automatically switch to an OFF mode. This reduces the monitor's internal power supply consumption. After the video input signal is restored, full power is restored and the display is automatically redrawn. The appearance is similar to a "Screen Saver" feature except the display is completely off. Pressing a key on the keyboard, or clicking the mouse restores the display.
The DDC2B is a bi-directional data channel based on the I²C protocol. The host can request EDID information over the DDC2B channel. Disassemble procedure
> Remove the cover hinge marked in red.
> Remove the screws as following indicate to release base stand.
> Remove the back cover and regard the hook.
> Remove the keyboard.
> Remove the bezel.
> Remove the screws to remove the panel.
> Remove the screw as following indicate to remove the main board, audio board and power board.
Schematic diagram - Power and Scalar [Click on the schematics to magnify]
