17
Q
Can every TV work with the HDMI matrix?
A
Basically, the answer is YES. But if your TV cannot support 1080p, please refer to the EDID/COPY
MODE section to learn EDID from your TV.
Q
What is EDID? Why do I need to learn EDID?
A
EDID (Extended Display Identification Data) contains information data from a display device such as
video and audio capabilities in which it can support. Therefore, based on the EDID information, the
media player will output the most suitable audio/video format to the display. In order to correct video
display and audio problems, the EDID information is transmitted from the display to the media player,
learning EDID from the display to this device is necessary.
Q
What should I do to learn EDID from the display?
A
Due to the limitation of HDMI, the source device can only output one format of video and audio. In
other words, the source device cannot output 720p and 1080p video at the same time, or output
stereo and surround sound at the same time. Therefore, you may need to manually setup each HDMI
input for desirable audio/video output format. The mechanism of EDID Learning is to pick up the HDMI
display with the lowest capability among the ones you would use for this input source. For example, if
user would like to play the Input2 upon Output2, Output3 and Output4, and only Output3 cannot
support 1080p [support up to 720p only], please learn the EDID from Output3 display to the Input2
port. If Output3 gets HDMI signals from every HDMI input, please learn EDID information from
Output3 to all four HDMI inputs. For more information about EDID Learning, please refer to EDID
/COPY MODE section.
Q
My TV can support 1080p, but why is there no audio?
A
EDID factory default setting of this device is up to 1080p@60Hz & 2ch audio. However, there will be a
problem after changing the setting to use 1080p & 5.1ch if the TV cannot support 5.1ch audio. Please
use the default EDID, 1080p & 2ch audio.
Q
When I connect an audio amplifier (AV receiver) between matrix and the TV to extract 5.1ch
audio, why is there no audio?
A
Basically, the default EDID of the chosen input can support 5.1ch audio, but the problem is that the
EDID of the amplifier still cannot match the default setting. Therefore, the best method is to learn
EDID using COPY MODE from the amplifier directly. Please refer to EDID/COPY MODE section and
follow the steps to learn the EDID. When learning EDID from the amplifier, user just needs to connect
the matrix and amplifier.
Q
When I play the same content upon multiple displays, why does the TV equipped with an 5.1ch
amplifier have audio and the others don't have 5.1ch audio or stereo?
A
Due to the limitation of HDMI, the source can only choose one video and one audio format to play,
which can be either 1080p and 5.1ch or 1080p and stereo audio. This means when the user sets the
matrix at 1080p and 5.1ch, the source will only play the content under this format. Therefore if the TV
cannot decode 5.1ch audio, there will definitely be no audio.
FAQ
Summary of Contents for MAHCL4X4
Page 6: ...4 CONNECTION DIAGRAM...
