Ac Power; Audio Checl< Procedure - Yamaha TX 816 Owner's Manual

Once you
have
made
all
your
MIDI and
audio connections, you
can
now
connect
all
your equipment
to
the
AC
mains
supply.
The
poser requirements
of the
TX816
and
TX216
are
as follows:
U.S./Canadian models:
120V
(50/60
Hz).
General model:
110-120/220-240 V
(50/60
Hz)>
Voltage
selector incorporated.
Ensure
that
the voltage
selectors
is
seitched to the correct
setting for
your
area,
if
you have
tha general
model.
Once
this
is
done,
turn
on your equipment
in
the following sequence:
(a)
Turn on your
DX7
first.
NOTE:
if
you
switch on
the
DX7
after
turning
on
the
TX81
6,
the
ERROR
LED
on
the front of
any
of
the TF1
modules
switched
to
"COMMON"
will light,
and
the
LED
Display
will
show a "1". You
will
now
have
to
press
any
of the three switches
on
the
fornt of the
module,
to reset
it.
(b)
Turn
on
the
TX816
by
pressing the
power
switch
on
the
fornt of the
MIDI
rack frame.
Ail
of the
LEDs
on
the front panel
wilt light
up,
and
then
after
about
two
secontd
there
will
be an
audible
click
and
a
program
number
(voice
number)
will
appear
in
the
LED
Display on each module,
indicating that
they
are
now
in
the Play
mode
and
ready
to use.
At
the
same
time,
some
of
the
other
LEDs
will
go
out.
Each module
should
now
have 3
LEDs
lit:
the
LED
Display
(a
number);
the
Memory
Protect
LED
(the
Memory
Protect function
is
always
turned
on
when
you
turn
the
tX81
6
power
on,
even
if it
was
turned
off
the
last
time the
unit
was
used);and
either
the
INDIVIDUAL
or
COMMON
LED.
(c)
Turn on
your mixer
and power amp/speaker
system.
You
can
now
set
your mixer
input
sensitivities
using the
TX816's
built-in
AUDIO
CHECK.
This
is
done
for
each
individual
TF1 module,
using the following procedure:
(a)
Hold
SW3
(the
SELEDT
key)
until
you
see the [S3
display,
then immediately
release
the
key.
This
will
take
about 4
second,
and
will
be preceded by
the
\Ed\
and
[SQ
displays.
The TX816
is
now
in
the
Utility
mode,
if
you
held
SW3
down
too long
and have "gone
past" this
mode, keep
holding
SW3
down
until
you
see the
correct display.
(b)
Select the
AUDIO CHECK
SIGNAL
sub-mode
by
briefly
pressing
SW3
three
times.
You
should
now
see the
alternating
LED
Display
[r~]"**rT1
.
This
shows
that the
AUDIO CHECK
SIGNAL
is
ready
to
be
activated,
if
you have
"gone
past"
this
sub-
mode
by
pressing
SW3
too
many
times, press
SW3
re-
peatedly
until
you
see the
correct display.
(c)
Set the
input
channel
sensitivity
on
your mixer
to
its
minimum,
then
turn
on
the
AUDIO CHECK
SIGNAL
by
pressing
SW1.
The
LED
Display
will
now
show
[i
h-*r^
The
TX816
wilt
now
be producing
a standard
440
Hz
tone
at
-4dBm, and you
can
adjust the input
sensitivity
on your mixing console
to
match
this.
(d)
Once
you have
adjusted your
input
sensitivity,
you can go
straight
back
to
the Play
mode
by holding
down
SW3
until
you
see the program
number
in
the
LED
Display.
(e)
Now
repeat the
same
procedure (paragraphs
(a) to (d)
above)
for the other
seven TF1 modules.
(In
the case
of
the
TX216,
of course, there
is
only
one
more module
to
check,
after
which you
can continue on
to
the next
section).
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