T+A MP 3100 HV User Manual page 13

Screen symbols and their meaning
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ABC or
123 or
abc

Making connection (Wait / Busy)
The rotating symbol indicates that the MP 3100 HV is currently processing a
command, or is attempting to connect to a service. These processes may take
some time to complete depending on the speed of your network and the load
upon it.
During such periods the MP 3100 HV may be muted, and may not respond to
the controls. Please wait until the symbol disappears, then try again.
Indicates a music track which can be played, or a playlist.
Indicates a folder which conceals further folders or lists.
Indicates that a source is being reproduced via a cable connection.
Indicates that a source is being reproduced via a radio connection.
Indicates that the MP 3100 HV is reproducing a station or playing back a music
track.
Pause indicator
Buffer display (fullness indicator, memory display) and data rate indicator (if
available):
The higher the data rate, the better the quality of reproduction.
Display of the elapsed playback time.
This information is not available for all services.
Indicates that the  button can be used to switch to a higher menu or
select level.
Position indicator in select lists. The first number shows the current position in
the list, the second number the total number of list entries (length of list).
Indicates that the selected menu item or list point can be activated by pressing
the  button.
Display of the symbol input modes
Indicates the field strength of the radio signal.
If the  symbol appears while playing back from a digital input - the
MP 3100 HV has switched over to its internal precision oscillator (local
oscillator). This eliminates jitter effects, but is only possible if the clock quality
of the connected signal is adequate.
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