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Teac A-450 - Page 34

Teac A-450
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SIMPLIFIED
CIRCUIT
DIAGRAM
DOLBY
B-TYPE
PROCESSOR
fee
St
gy
en
et
Se
Re
eg
gee
oy
eee
7
Ny
oN
CAL
POINT
~-=---
(DOLBY
TEST
POINT)
Toou
4
LEMZEOPY
CAL
|
fvrarn6,
ma)
A
Z2!
Sek
vR403,
C702
(gH)
1
|
|
|
;
i
©
H
2
2)
|
3
1017201
j
ss
=~
3
Nn
Qi01
s201
a
2
Q102/202
VRIO1/201
H
"is
es
|
:
-
1
H
=
a]
vaioz/20z
|,
!
!
~
7
|
|
te
|
|
es
|
|
bal
|
P>)
l,
oe
!
|
8
|
i
|
1
°
|
2
I
1
o
2
'
1
——-
a}
+
%
:
1
|
&
206
{
=
|
\
y
Pry
1
Siol
R/P
Sw
fe
al
In
r
me
Pies
Seae
Be
e
e
41—--->---—-
a
|
a
?
ms
R/P
HEAD
a!
VR
hale
Stor
VU
METER
!
R203VRZ0
5
q
cay
1g
O8o3
R/P
SW
METER
AMPL
41027202
0351/36!
0352
/362
vRI08/208
VC101
[vC102|VCIO3
PEAK
LEVEL
20!
|ve202|vc203
0361
|
~
9304
hey
YY
Sm
oe
pay
eu
BIAS
OV.
O9S
void
2
°
a
x)
a
ts)
a
ix)
N
a
n
p--=
=<}
=F
=
g
3
tT
8
8
L--~-—~-~~-f]----4
0705
c708
|
R714
1SOk
1O/16V)
3%
MB5I3A-R
2
‘s
N
x
CIRCUIT
Description
|
CIRCUIT
—_|
pescRIPTION
REF.
NO.
REF.NO.
a701
/
9801
|
28c1327(T)
|
9706/0806
|
2sk30(DA)
or
9702
/Q802
|
28¢644(s)
2SK30(08)
@703/
9803
|
2sn666(1S)
|
0707/0807
|
2SC1327(T)
pd
ria
OST
OROS
|
ESCoaN
Tt,
||
G08
70808.
eonpeetlS
ALL
CAPACITOR
VALUES
ARE
IN
MICROFARADS
(p=PICO-
9705
/
9805
|
28c644(s)
|
0709/0809
|
2sc644(T)
FARADS).
1,
ALL
RESISTORS
ARE
1/4
WATT,
5%,
UNLESS
MARKED
OTHERWISE.
RESISTOR
VALUES
ARE
IN
OHMS
(k=1000,

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