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Oberheim Matrix-6 Service Manual

Oberheim Matrix-6
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MATRIX-6
SERVICE
MANUAL
PRELIMINARY
EDITION-February,
1986
00
MATRIX-6
CAHBRATIONS
1.
TUNE
-
While
in
MASTER
EDIT,
pressing
the
B
button
puts
the
MATRIX-6
into
AutoTune.
The
cycle
takes
approximately
two
to
three
seconds
to
complete,
during
which
time
the
display
reads
"TUNING...".
While
in
TUNE
mode,
the
processor
is
tuning
the
MATRIX-6's
three
High
Frequency
Oscillators
(HFOs).
2.
CALIBRATE
-
While
in
MASTER
EDIT,
pressing
the
A
button
;
uts
the
MATRIX-6
into
Parameter
Select
mode.
While
in
this
mode,
call
up
parameter
52
and
the
display
should
read
"52
CALIBRATE
".
Now
press
the
I
button.
This
will
put
the
MATRIX-6
into
VALUE
mode
and
the
display
will
read
"READY?
".
Press
the
YES
button
on
the
Keypad
-
the
display
will
Llank
out
during
the
Calibration
routine.
When
the
process
is
finished,
the
display
will
return
to
read
"52
CALIBRATE
".
The
CALIBRATE
function
calibrates
the
three
HFOs
as
well
as
the
VCF
Frequency, Pulse
Widths,
Resonance
amount
and
VCA2
level
on
each
voice.
If
the
MATRIX-6
encounters
any
problems
while
tuning
the
voices,
it
will
display
which
voice
and
the
section
of
that
voice
that
is
having
the
problem.
To
display
tuning
failures
enter
CALIBRATE
mode
and,
with
the
display
blank,
press
and
hold
the
C
button
until
the
display
returns
to
"52
CALIBRATE".
If
the
MATRIX-6
tunes
all
six
voices
without
encountering
any
problems,
the
display
will
remain
blank
during
the
tuning
process.
When
problems
are
encountered,
the
display
will
indicate
which
of
the
four
sections
of
th>:
tuning
process
and
the
voice
or
voices
that
are
bad.
Failures
in
any
of
the
four
ections
of
the
tuning
process
are
displayed
with
the
following
messages:
"BADOSC
""
"BAD
WAVE
""
"BAD
RES
""
"BAD
VCF
"
"
for
problems
with
the
HFOs.
for oscillator
waveform
problems,
for
resonance
problems,
for
filter
problems.
The
two
stars
in
each
message
represent
a two
digit
number
that
indicates
which
voice
or
voices
have
failed
that
section
of
the
Calibration.
The
number
is
MATRIX-6
Service
Manual
ECC
/
Oberheim
-
Los
Angeles,
CA
90064
-
Part
tt
950060
Page
1

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Oberheim Matrix-6 Specifications

General IconGeneral
Polyphony6 voices
Oscillators2 DCOs per voice
Keyboard61 keys
Memory100 patches
MIDIYes
TypeAnalog
Year Released1985
Envelopes3

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