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Sony TC-W345 Service Manual page 24

Stereo cassette deck

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TC-W345
BLOCK DIAGRAM
HF901
PLAYBACK
HEAD
10303 (1/2)
ee ee
PB EQ AMP
§—13
<
1C301
i
PECK A
iA
Or
PB LEVEL
Reh
—>
;
HRP901
REC/PLAYBACK
10303 (2/2)
HEAD
PB EQ AMP
1p
410
of
rs
<——
>
pgm
of
1C302__
¢
a
Pe
RVi02
12
PB LEVEL
Rech cE
I
'
1
Reh
<--+
J
L
RELAY BRIVE
|
NI
Q308
RY301
=<
RV104
RECORB
BIAS
HESO1
T304
ERASE
Roh
BIAS
HEAD
><
00 97.0.0 ai
BIAS
OSC
5-
Q304, 307
RV501, 503
RY502, 504
TAPE SPEEA
TAPE SPEEB
(HIGH)
(NORMAL)
_
$901
RVSO
MOTOR
se
Sw
V
=
E-
B
(BECK A)
i:
MOTOR SPEED
M901
Rv501
MOTOR
M I
— ie
CONTROL
(DECK A)
a505
A
-
Bt
soroR
Be
SW
es
fics
WECK B)
/
|
;
L
J
OR
SPEE-
M902
RV503
Laas
MOTOR
he
CONTROL
-
(BECK B)
a
Qs506
A
03
Bt
BIAS CONT o —
Bt
a304
8304
BIAS
SW
Q305
5304
BECK B
TAPE
SELECT
BECK
A
TAPE
SELECT
Q503, 504
<q
snc
nee
en onthe
ae
acme
ae
10304
MV.
CTYPE
BOLBY NR
$301
OFF
ON
REC AMP
RY103
1C305
REC GAIN
REC MUTE
REC/PE
<t
i
<—
LOGIC CONTROL
eae
1¢501, 502
5902
PLay
__#F
SW
$—b—>
(BECK A)
5501
5904
B+
BUBBING SPEED
PLAY
y—o
Sw
O—S
>
NOR
(®ECK B)
|
HI
$905
aa:
2
REC
0
1B
|
Q
'
aie
BUBBING SW
9502
SW
(ECK B)
<
BIAS
Seve
@) 2512
*" NORMALI
HOLBY
AMP
5
RVZ01
PB EQ SW
aro
BALANCE
es
f
3
>(4)—|
LPF101 | (7)
RV3202
=
=
[REC_LCEVEL|
5302
ae
B: TYPE
B
J30f 1/2)
LINE OUT
HEADPHONE.
AMP
1C306 |
,
Reh
| a>
©)
SAV]
J302
SPK101
LEVEL
METER (Leh)
1c101
MODE CTL
8101-107
PEAK
LEVEL
METER
LINE MUTE
SW
Q507_
LINE
MUTE
1. 8513
eR-CH
is
omitted.
we [REC
REC EQ SW
REC
EQ SW
Q301, 302
Q30%
2303
=
2
5701
[POWER
@) 0511
ON <— OFF
ieee
yes
rr
VOLTAGE
1901
POWER
SELECTOR
TRANSFORMER
S101
RECT
L b
701, 702
RECT
|
5703, 704
a
EXCEPT
E MODEL
HEADPHONES

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