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Panasonic AG-7350 Series - Page 74

Panasonic AG-7350 Series
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5-3-31.
S-VHS
PLAYBACK
FREQUENCY
RESPONSE
ADJUSTMENT
(FOR
AG-7350)
TP
ADJ.
MODE
INPUT
PALS·VHS
30%
SWEEP
VIDEO
OUT 1
VR3007
PLAY
WITHOUT
BURST
TAPE
M. EQ.
SPEC.
SELF
OSCILLO·
RECORDED
SCOPE
100kHz:
4MHz=100:
60±10
TAPE
1.
Set
the
video
mode
to
the
"B/W"
mode
on
the
On-Screen
setting
menu.
2.
Set
the
sweep
generator
output
as
shown
in
Figure
E30.
3.
Supply
the
30%
sweep
signal
with
burst
signal
to
the
video
input
and
record
it
for
a
few
minute.
4.
Play
back
the
just
recorded
portion.
5.
Connect
the
oscilloscope
to
the
video
out
1.
6.
Adjust
VR3007
so
that
the
playback
frequency
response
becomes
the
ratio
of
100
: 60
+/-1
0
at
the
marker
points
of
1OOkHz
and
4MHz
as
shown
in
Figure
E31.
I Video Sweep Input Signal I
1
MHz
3MHz
0.3V
1V
(750
TERMINATED
BURST: OFF)
Figure
E30
VIDEO
OUT
1
100kHz
Figure
E31
5-3-32.
S-VHS
PLAYBACK
FREQUENCY
RESPONSE
ADJUSTMENT
(FOR
AG-7150)
TP ADJ.
MODE
INPUT
VIDEO
OUT
1 VR3007
PALS-VHS
X
PLAY
TAPE
M. EQ. SPEC.
30%
SWEEP
OSCILLO·
RECORDED
SCOPE
100kHz:
4MHz=100:
60±15
S·VHS
TAPE
5-14
1.
Set
the
video
mode
to
the
"B/W"
mode
on
the
On-Screen
setting
menu.
2.
Prepare
the
prerecorded
S-VHS
tape
which
recorded
the
sweep
without
burst
signal
on
another
recorder
(AG-7350)
as
shown
in
Figure
E28.
3.
Play
back
the
recorded
tape.
4.
Connect
the
oscilloscope
to
the
video
out
1
connector.
5.
Adjust
VR3007
so
that
the
playback
frequency
response
becomes
the
ratio
of
1 00 : 60
+/-
15
at
the
marker
points
of
100KHz
and
4MHz
as
shown
in
Figure
E32.
VIDEO
OUT
1
100kHz
Figure
E32
5-3-33.
TRACKING
LEVEL
ADJUSTMENT
(FOR
AG-7350)
TP ADJ.
MODE
INPUT
TRACKING
VR3008
PAL
COLOUR
BAR
METER
PLAY
TAPE
M. EQ.
SPEC.
SELF
X
OdB±0.5dB
RECORDED
Note:
Make
sure
that
the
tracking
volume
is
set
to
thr
centre
fix
position.
1.
Supply
a
colour
bar
signal
to
video
input
and
record
it
for
a few
minute.
2.
Play
back
the
just
recorded
portion.
3.
Adjust
VR3008
so
that
the
tracking
meter
indicates
OdB
+/-0.5dB
as
shown
in
Figure
E33.
TRACKING METER
dB
~INDICATOR
0/
-3dB
+3dB
Figure
E33

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