MITSUBISHI ELECTRIC NETCOMMAND 2.0 HD-5000A - Manual (Page 10)

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•HAVi (Home Audio Video Interoperablity) is
designed to handle AV/C type of control and allows
each device to “teach” the HDTV Receiver how to
control more than simple basic functions. The device
will inform the HDTV Receiver what information
and control buttons will be needed on device specific
menus so the additional functions can be controlled.
The ability of a device to “teach” the HDTV Receiver
how to control new functions allows the HDTV
Receive to control non-traditional devices or new
types of devices not yet developed.
Some devices may be a combination of two or more types
of devices. For instance, there may be a recording device
that is also a tuning device. Each portion of the device is
called a sub-unit. When you select a device on the Device
Selection menu that has sub-units, a pop-up menu will
appear so you can select which sub-unit section you wish to
use.
The HDTV Receiver is not able to control IEEE
 devices that use other types of control protocols.
Incompatible digital audio, video and/or control
information will still be able to pass from one device
through the HDTV Receiver to another device on the
network. These incompatible devices may not appear on
the Device Selection menu or in the Review screen of the
Edit NetCommand menu.
Adding IEEE 1394 Devices Automatically
1. Digital Video Signals
The HDTV Receiver is able to decode MPEG video.
Other types of digital video, such as DV video, provided
by some camcorders, must be decoded by the source device
and sent to the HDTV Receiver as analog video or S-
Video. If the camcorder uses a compatible digital control
system, the IEEE  cable can still provide control for
the camcorder while the HDTV Receiver is viewing the
video or S-Video signals.
2. Digital Audio Signals
The HDTV Receiver is able to decode Dolby Digital
signals and MPEG Audio signals.
Other types of digital audio such as MP Audio and
DTS Audio, as provided by some digital recording devices,
cannot be decoded by the HDTV Receiver.
The HDTV Receiver may not be able to pass incompatible
digital audio signals on the coaxial digital audio output,
however these signals may pass on the IEEE  cable to
other devices.
3. Digital Control Signals
The TV is able to act as the control center for IEEE 
audio/video devices, such as VCRs, AV Discs, tuners,
cable boxes and amplifiers that are compatible with the
following IEEE  control standards.
•EIA- is designed for tuning devices such as cable
boxes allowing the device to send simple graphics.
However, this standard does not allow the HDTV
Receiver to control the cable box by IEEE .
•AV/C (Audio Video Control) is designed to provide
basic controls such as play, stop, channel selection and
volume, as appropriate for the device.
Compatible IEEE 1394 Devices
It is possible to connect devices to the HDTV Receiver that have IEEE  connectors but are not compatible with the
HDTV Receiver or with the NetCommand ® control system. There are three areas of compatibility to consider: