Acer X171 Dual, Service Manual

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LED Definition
The system equips one dual color (blue/amber) led to indict system status and defined as
bellows :
LOGO :
When the monitor is power on, the LOGO will be showed in the center, and disappear slowly.
HOW TO OPTIMIZE THE DOS-MODE
Plug and play
Plug & play DDC2B feature
This 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 communication
channel is defined in two levels, DDC2B.
The DDC2B is a bi-directional data channel based on the I
2
C protocol. The host can request EDID
information over the DDC2B channel.
System in power-off mode Dark
System in power-saving mode Amber
System in normal operation mode Green
System Status LED Color