Ddc Channel - Philips BDL4230E/00 Service Manual

Audio input -
of >10k .
Speaker output -
No signal input -
2.3

DDC channel

E-EDID data structure according to VESA Enhanced EDID 1.3 (and EIA/CEA-861B for HDMI).
Allows source to interrogate capabilities of the Display & AV inputs.
Separate EDID for VGA input and HDMI input.
2.3.1 EDID content for Analog
TBD
2.3.2 EDID content for Digital
TBD
2.3.3 DDC/CI
DDC/CI (Command Interface) specifies a means for a computer to send commands to the monitor, as well as
receive sensor data from the monitor, over the bidirectional link such as DDC2Ab/Bi/B+. Specific commands
to control monitors are defined in a separate Monitor Control Command Set (MCCS) standard.
DDC/CI monitors are sometimes supplied with an external color sensor to allow automatic calibration of the
monitor's color balance. Some tilting DDC/CI monitors support an auto pivot function, where a rotation sensor
in the monitor enables the operating system to keep the display upright as the monitor is moved between its
portrait and landscape positions.
The following DDC/CI commands should be supported via command line:
No.
1 Set Brightness
2 Set Contrast
3 Set Red Gain
4 Set Green Gain
5 Set Blue Gain
6 Get Brightness
7 Get Contrast
8 Get Red Gain
9 Get Green Gain
10 Get Blue Gain
General Product Specification
DDC channel:
Content protection:
Sensitivity 500mVrms, the amplifier outputs full power when the
input level reaches 500mVrms, terminated with input impedance
Back firing speakers 2 x 10 Wrms, with T.H.D. < 10%.
While no signal at external inputs, screen goes blue before entering
standby mode.
Commands
Allows source to interrogate capabilities of sink.
I²C signaling with 100 kHz clock.
E-EDID data structure according to EIA/CEA-861B and
VESA Enhanced EDID.
According to High-Definition Content Protection (HDCP)
Specification 1.10.
BDL4230E LCD 69