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Akai VS-2EGN

Akai VS-2EGN
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8.
BOOSTER
CIRCUIT
Fig7-114
Filter
Characteristics
va
VE
low
HIGH
UH
FM
'TRAP
OUTSIDE
OF
TV
BAND
WiOTH
BOOMHE
ToOOMHE
wer
Lo
Fu
VHF
rap}
wweUT
oat
one
i
i
fr
aw
wx
L—*outeur
Po
UBF
FILTER
Ty.
our
ii
VHF
FILTER
iNeUT
POT
se
ee
cated
aria”
ve
grower
Lf
+
at]
DISTRIBUTOR
any
aes,
cawes
Ciiste
tslte”
tres
a
i}
of
ser
|—sfan?
of
osrmavroe
art
bof
ame
Lofx
|]
x
!
1
)
TAT
Tez
1
W/
|
\
HPF
|
bnee
}
I
1F
FILTER
a
VIDEO
IN
CLAN
PRE
‘AUDIO
AUDIO
IN
ewpHasis|
*]
moo
H
[Re
CONVERTER
Fig7-113(B)
+8
AFT
Bias
cicurr|
Yen
MUTE
FINE
oo
|
The
signal
flow
in
the
booster
circuit
is
as
shown
in
Fig.
7-113
(A).
The
composite
TV
signals
having
entered
ANT
IN,
are
separated
into
different
bands
by
the
UHF
and
VHF
filters.
The
signals
thus
separated
are
distri-
buted
to
VTR
OUT
and
TV
OUT
passing
through
the
respective
special
AMPs.
The
signal
from
the
RF
con-
verter
is
fed
to
RF
IN,
combined
with
the
UHF
signal,
and
output
to
TV
OUT.
Adequate
reverse
isolation
is
a
i
a
Service
Manual
VS-2EGN
_
._—_—_
OT
80
co
+
leas
gs
L
[DEEMPHASIS]
nao
provided
by
the
attenuator
and
amplifier
so
that
the
converter
output
does
not
leak
back
into
the
ANT
input
side,
Now,
the
circuit
will
be
described
with
reference
to
the
block
diagram.
The
VHF
and
UHF
filters
are
as
shown
in
Fig.
7-113
(A),
and
the
overall
‘characteristics
thereof
are
as
shown
in
Fig.
7-114.
Fig.
7-113
Fig.
7-114

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