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1. INTRODUCTION TO THE MODEL 15
The Madel
15 is an audio mixing console designed
to satisfy the requirements of modern multichannel re-
cording.
Many of the auxiliary
mixing systems needed
are built in and canbe
re-routed to do more than one
job.
Fast, convenient
and complete
operation
with 8
track or 16 track recorders can usually be accomplished
without
ré-patching.
However,
the
process
of multi-
channel
recording is constantly changing, growing more
complex as an art with each advance in technology. Your
signal processing
needs
may
require a unique arrange-
ment of subsystems.
No console has ever been built so
large and complete in its routing that it could solve every
imaginable
problem
with one button.
Someone will al-
ways be able to come up with that unusual situation re-
quiring "just one more mix". In order to cope with these
unpredictable
requirements,
patch points are provided
throughout all signal pathways on the M-15.
As our mixing console becomes
more flexible, the
amount of time needed to understand the available func-
tion increases as well. The main signal path from mic in
to line out is still fairly straight forward. The require-
ments have not changed much since the days of "mono"
but the routing for echo sends, multiple source
cue feeds,
and stereo monitoring can be hard to visualize. The be-
ginner often
overlooks the significance of connections
that would be immediately obvious to the experienced
recording
engineer.
If you
expect
to find that "extra
mix" quickly, you must be prepared to study the layout
of the M-15 thoroughly.
In most instances the physical
arrangement of the controls on the top pane! has very
little to do with the sequence of electronic parts inside,
The actual wiring order is the information you need to
understand to use the M-15 successfully. As an example,
if the controls on an input module actually followed the
order in which
they are wired, the module
top panel
would
look like this. We'll put the jacks on the top, as
well as the switches and faders.
While this arrangement
of controls might help the
beginner to understand the flow of signal in the module,
it would be very inconvenient to operate. Still,
the wiring
sequence must be understood
before the more complex
functions of the M-15 can be used successfully, so along
with the documentation
you will need for service {sche-
matic diagrams,
mother
board
layouts and mechanical
disassembly information)
we include a simplified electri-
cal sequence
chart called
a BLOCK
DIAGRAN.
This
drawing
shows
all the
controls,
switches,
amplifying
stages and connectors
in their proper order. Learning to
read it will provide the answers to any questions about
what comes where on the inside. Even though the block
diagram can indicate what is available in the way of ex-
tra circuit flexibility, it can't explain why 2 connection
or switch has been included, or suggest a standard layout.
In the following sections of this manual we will do our
best to describe the individual functions and controls of
the M-15 and how they can be arranged in more than
one sequence, but your mixing needs may be best served
by an arrangement of inputs and sub-system connections
you work out for yourself.
Good
luck with your sound.
'EDs
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