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(known as "5-pin DIN" connectors). Functionally, the MIDI Interface oper-
ates as a standard MPU-401 "UART mode" MIDI interface.
4. CD-ROM Headers. This pair of headers accepts line-level audio from a
CD-ROM player or other source internal to the computer. The two headers
are wired in parallel and their different formats will accommodate most
CD-ROM audio outputs. Only one header should be used at a time – the
other should not be connected to anything.
5. MIDI Daughterboard Header. This is a standard format header that
accepts third party MIDI synthesizer daughterboards. Both MIDI and
audio streams traverse this header. The daughterboard MIDI is shared by
the MIDI Interface Cable's MIDI Out.
Left
Volume/
CD In
Balance
Right
Volume/
Daughter BD
Balance
Volume/
Line In
Balance
Volume/
Loop back
Balance
(See Playback Mixer)
Left
PC Digital Audio
Right
Synth
Daughter BD
CD In
Line In
"Record" Mixer Diagram
Record
Input
Select
"Playback" Mixer Diagram
"Wave"
Volume/
Balance
Volume/
Balance
Volume/
Balance
Volume/
Balance
Volume/
Balance
DMAN PCI Block Diagram
A/D Converter
+
To "Record" Mixer's
"Loop back" input.
6
Digital Audio
to PC
Left
Master
Line Out
Volume/
Balance
Right
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