EasyManua.ls Logo

Fostex G16 - Page 49

Fostex G16
124 pages
Save Page as PDF
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
must
be
at
INDIV.
It
is
considered
as
a
normal
condition
if
the
output
level
is
-lOdBV
±ldB.
If
it
is
off
spec,
correct
by
adjusting
REC
LVL
^204).
Calibrate
tracks
2
~
16
in
the
same
way.
4.3.9
Overall
frequency
response
1)
With
the
connector
panel
NR
ON/OFF
switch
at
OFF
and
under
the
measurement
setup
of
the
previous
Section
4.3.8,
apply
signals
from
40Hz
through
18KHz
at
-lOdBV
(0.3V)
to
the
recorder
INPUT
jack.
To
adjust
TRACK
1,
for
example,
apply
the
signal
to
INPUT
jack
1
and
plug
in
a
level
meter
to
OUTPUT
jack
1.
Put
TRACK
1
in
the
record
mode
to
record
a
certain
length
of
the
signal,
rewind
it
to
the
start
point,
and
playback
the
tape.
It
is
considered
as
a
normal
condition
if
the
frequency
response
in
reference
to
IKHz
is
within
±3dB.
If
it
does
not
fall
within
spec
in
the
high
frequency
region,
correct
it
by
a
slight
rotation
of
REC
EQ
(^©5).
2)
Check
and
adjust
tracks
2
~
16
in
the
same
way.
3)
Then
put
the
Dolby
NR
ON/OFF
SW
to
ON
position.
Apply
signals
from
250Hz
through
14KHz
at
-35dBV
(18mV
r.m.s.)
to
the
recorder
INPUT
jack.
Record
and
playback
the
certain
length
of
the
signal.
It
is
considered
as
a
normal
condition
if
the
frequency
response
is
within
±3dB
between
250Hz
and
lOKHz,
and
within
±5dB
when
the
higher
end
is
14KHz.
If
it
does
not
fall
within
spec
in
high
frequency
region,
correct
it
by
a
slight
rotation
of
REC
EQ
(R205).
4.3.10
Overall
S/N
Measurement
1)
Put
NR
ON/OFF
switch
to
ON.
2)
Upon
completing
checks
up
to
Section
4.3.9
apply
a
IKHz,
-lOdBV
(0.3V)
signal
to
the
connector
panel
INPUT
jack
1,
for
example,
and
record
the
signal
onto
a
blank
tape.
Then,
without
stopping
the
tape,
unplug
the
oscillator
connected
to
the
INPUT
jack
and
further
record
a
length
of
no-signal
tape.
3)
Plug
a
level
meter
into
OUTPUT
jack
1
and
playback
the
recorded
signal
section
to
meas
ure
the
noise
level
of
the
no-signal
section
against
the
IKHz
reference
level.
Calculate
the
difference
between
noise
level
and
reference
level,
add
lOdB
to
it
and
obtain
the
ratio
between
peak
recording
level
and
noise
level.
Specification:
80dB
weighted,
60dB
unweighted
46

Related product manuals