Teac A-400 Service Manual page 40

Stereo cassette deck
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,, (DOLBY NR
Rsor
39k
Reoz
39k
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NES45B
DOLBY
IC UNIT
cise
1oo/25v
CIRCUIT
REFNO.
DESCRIPTION
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9101/9201
2SC900(UA)
Q102/0202
2SC900(UA)
9103/9203
2SA750(E)
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27
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0106/0206
2SC945(LK)
0107/0207
2SC945(LK)
Q108/0208
2SC945(LK)
7109/0209
2SC945(LK)
Q110/Q210
25C945(LK)
0711/0211]
250945 (LK)
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113
25C900(UA,
0301
2SA539(L)
9302
2SC945{LK)
9303
25C945(LK)
Cus
O1/35V
0,0047/50V
Be 9
%
veoad
0.047/50V
cizi
3000P(J)
SOV
Ciz0
3300P/50V(N)
470/25V
1BOOP/50Vi
J)
Ria4
680k
Rizs
Ik
Riza
100k
cus
Se
100 /28V
:
Q305
25C945(LK)
RECORD/PLAY
HEAD
.
Q306
28C945(LK)
Q307
25C0945(LK)
9308
2SC945(LK)
Rus
:
SCR301
2PIM
Ch
Rite
Cus
Cia
cise
4TOP/S0V
47k(SG}
(SOV (DT)
220P/S0V
3.3/25V(LR)
S| ee
Q104
or
CP
=
4.7k
sO/16V
O15/50Vi
5)
|
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1S2473VE
0.022/50VI0)
0.015/50V
(5)
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4
NOTES
1 Schematic diagram shown in the LEFT channel.
'2 Schematic diagram shown in the STOP mode.
3 All resistors
values
in ohms, 1/4 watt,
k=1,000 ohms,
4 All capacitors values
in micro farads.
5 DC voltage readings were obtained under the following condition.
INPUT SIGNAL :NONE
MODE
:RECORD
[DC MOTOR }
1 UNIT
I
L
4
-
2IOP
MAX
Vc302
yp
0 MAX
210P_MAX
2)0P_MAX
R304
100 Sw
R302
1.8k
>t
yoso4
2200/716V
22k
I72W
1S2473VE
R328
w
0.001/50V
lo) wn i?)
V3sV
OT
C305
470/35V
I TOO/10V
C34
So
ee
HEAD
ur
2
| IC 301
6303
1000/35V
1000/25V
D3it
Dsi2
IS2473VE _ 1S2473VE
is2a73 ve
:
Q307
Q308
0.01/50V
dt
R309
680k
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me me
ee
ee
ee
OO
0
Om
ee
0
29
26
27
26
24
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:
$409
SOL4o!1
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|
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Teor
2av
|
if
158
{
0.54
Vaz
1
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tov
24av
G40! 0. 120/400V
|
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.
Low
g 0.20
.
1
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¥
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;
CASSETTE
DECK
DIAGRAM FOR
DIAGRAM
FOR
DIAGRAM FOR
DIAGRAM FOR
STEREO
C A S :
JAPAN
MODEL ONLY
TCA MODEL ONLY
EX
MODEL
ONLY
:
EUROPE
MODEL
ONLY
06-761
Ga-104|"P=* 8
re NO.
A-400
06-75
os-7.
Sooo
«| TE a{c CORPORATION

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