Tascam DA-30 - Page 28

12-4.
Confirmation
of
the
output
level
of
the
ATF
section
12-4.
ATFROMNU
<i
mie
1)
Connect
CH-1
of
the
oscilloscope
to
TP413
(PILOT)
and
CH-2
to
TP407
(SWH).
2)
(Load
the
level
test
tape
TY-7111,
then
set
the
unit
I)SWH)
LEN
EMERS
SZ.
to
the
PLAY
mode.
3)
As
shown
in
Photo
4-3,
make
a
note
of
the
signal
level
2).
UNAAF
ARS
F-7F
T-TIEBAL,
PLAY
voltages
of
heads
A
and
B
at
the
AFT
section
(130
E-KFI$S
kHz)
of
the
waveform.
“
1).
YOR
3—SOCH-1LTP4I3(PILOT)
(2.
CH-2%TP40
¢
3).
FHA-3
OM,
MBO
AaTPB(130KWz
O(ESv~v
WANs
EF,
Bay
FEHTHMVCH
SHEL
(
AE) LTHEA.
i
|
Photo
4-3
i,
12-5.
Confirmation
of
the
recording
current
at
the
ATF
section
12-5.
AT
F&O
ssa
titew
1)
Connect
CH-1
of
the
oscilloscope
to
TP413
(PILOT)
"
2
2
and
CH-2
to
TP407
(SWH).
1).
4¥E2XR2-—7OCH-LETPALS(PILOT)
IZ,
CH-2=TP40
2)
Load
a
blank
TY-30B
tape
for
recording
and
confirm
:
DSW
KEHCHERSS.
€
there
is
an
unrecorded
portion
on
the
tape
before
;
i
making
a
non-signal
recording.
,
2).
ERM
7577+
F—-T
TY-30B
ERBL,
HKMO
3)
Rewind
the
recorded
portion,
then
confirm
that
the
2 - 2 +66 = x -
signal
levels
of
heads
A
and
B
of
the
ATF
section
(130
BACKS
CEMBLAR,
MESRET
5.
kHz)
when
they
are
played
back
are
within
+2
dB
3).
RIESRALESSERRL,
FPELKLEKOANY
of
the
levels
noted
down
in
12-4
above.
(Refer
to
7
Photo
4-4.)
KF,
By
FENSHO
ATPR(130K2z)
O(EBU~Ka
a
12-4
VCH
(XE)
LALA
O+2GB
LATS
HSSACESHRIS.
(BHi-4
BM)
€
Photo 4-4
12-6.
Adjustment
of
the
recording
current
of
the
ATF
12-6.
ATF
ROME
:
section
:
bead
ad
Sys
Sicgatces
.
*
If
the
values
do
not
fall
within
the
standard
fange
even
ISAC
RBC
A
SIUM
G
It,
RFA=
7
OSCR
é
when
procedure
12-5
has
been
performed,
adjust
the
EE
AMEE
130K
(
Rl4-8)
ERR,
12-57
=
KE
EP.
recording
current
control
VR130K
(Fig.
4-8)
on
the
RF
unit,
then
repeat
procedure
12-5
until
the
values
are
as
per
LIBIKAZECHRORT,
12-5.
28
E862 e2ENS ATS ARENN NOSE