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Sony TC-WA7ES Service Manual page 12

Stereo cassette deck

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5-1. BLOCK DIAGRAM
RvgO!
Rv902
J501-1
INPUT
[BALANCE]
(REC LEVEL
FILTER
LINE_IN
BUFFER
F>>-G)
HP101
PLAYBACK
HEAD
(DECK-A)
HRPE101-1
PB/REC/ERASE
HEAD
(QECK-B)
HRPE101-2
PB/REC/ERASE
HEAD
(BECK~B)
02
=
RECH
SECTION 5
DIAGRAMS
10504
1c503
RVI
PB AMP
(PB LEVEL)
1c3]
(BECK~A)
RVII
(PB LEVEL)
PB
AMP
LPFIO1
SOLBY
NR
AMP
1CS0i
IC31
(DECK-B)
DOLBY
HX
PRO
1C8}
T81
>>
@)
FILTER
©
(2)
{C502
I
BIAS OSC
x
a51-5
is
Omi tted;Same
aos
L~CH-——
SWITCHING
(BECK-A)
ROTATION
ET
1c8t
(BECK~-B)
ROTATION
DET
Ics8t
Q807
S*REEL (A}
S>—>G8) NR NZ
LINE/METER/HEABPHONE
AMP
10521
(2/2)
R-CH
SV]
J502
PHONES
TP80)
(TEST)
bse
SYSTEM
*P
CONTROL
SWITCHING
>
1C801
>>
J501-1
Q101
>
B+
LINE OUT
$924-1
MODE
HEADPHONE
BOL BY_NR
Cy
CONTROL
LEVEL
MUT ING
PB/REC EQ AMP
Rei
OEE
502
@523
ai2t
e521 (1/2)
|
ON
SWITCHING
102
>
ON (FILTER)
>
@
>
NR
NR MODE
CONTROL.
sol
MODE
it MUTE (12)
()
CONTROL
la
Saat
KEY INPUT
MUTE
os04S05
CONTROL
a122
1C802
=
BPB+ IN2
NOISE AMP
OSC ON/OFF
ii
REC +DUT2
REC + IN2
1¢541
15
WW
===-===-
aoLBY s
|!
z
7
CONTROL
|
$81 (ECK~A)
A/B IN 0 (25)
q
Ie 1
(STOP)
°
STOP SW (A)
l
RV101
(REERELED
se JES,
hekeeeeeeeeccsa
©
STOP
SW (@)
$81 (QECK-B
n
WWoeoeanen
NR MOSE
(STOP)
xs
iy
qo
$925
TC-WR665S !
agit
U
BIR MODE
TC-WA7ES |
}
2 _____—-#
AMS OUT
a
a
i
ie
ee
ee
LE =
AMS IN
ao
as21
(9)
ome
eee ee
H
<
AMS/ BS
d
ee
REC MUTE
in
ee
soqa-2 OFF
oe
A/B CTRL O
EQ CALO
wy)
BOLBY NR
t
?
=
EQ CALI
i)
ONSFEETERY
[=r
le,"
Rgesemeccee
eal
DOLBY
NR
REC
Ss [i
ree
eter eaeek
Leo
CALIBRATION
(15) REC CALO
4
oes
TC-WR6653
REC-CAL
REC CAL
eee
See EAE
TC-WA7E
TC-WATES
ago2
886 (WECK-A)
HALF
(5)
de
ie
REC EQ
(HALF)
D
*______1§
2
a525, 526
a>
A+70 #(28)
o—y
$82 ECK-A)
ws
i
(70u EQ
(2)
oy
aoe
Ap
SPEED H/L
es
3
584
(2324)
mx
(REC
A)
RELAY REC/PB
toy
ee
$83 (DECK-B)
METAL @)
(METAL)
(4)
R-CH
582 (DECK-B)
704 (®)
;
REG
;
RECT
eee
CAPSTAN
7.5)
a706
8703, 704
MOTOR BRIVE
CAP MOT @)
REMOTE
:
@806
SIRCS
CONTROL
M1 (BECK-B) B+
ee
eet
@
RECEIVER
CAPSTAN
!
1€901
aeTOR
SaNTRDE
Beran Halas
se
en
POWER
VOLTAGE
R72 &
a7!
812
eel
'
19
ON/OFF
eee
(6) CONSTANT
EL
oO)
ee
i
@got
Q703
IC701
(NORMAL)
TC-WR565, TC-WR6E5S
Mi (BECK-A) Bt
+
seect
CAPSTAN
Lod
MOTOR
SPEED
CAPSTAN
| TC-WA7ES
=
Best (al)
©
IC806
eee See
CONTROL
MOTOR BRIVE
CAP MOT L/H
; ( PITCH )
Q71
804
B+
» \cONTROL
_ TC-WR565, TC-WRE65S
(47. SV)
} RV80!
RY802
1
REEL
ii
Asa
A
pircu.c.on/oRF
REEL W +
MOTOR
M2 (BECK-A)
;
c
ao
BIAS
'
i
REEL (A) -
BRIVE
REEL
CALIBRATION
H
gerd
'
CAPSTAN
1C803 (1/2)
®
sora
Bt
REG
RECT
Soa
sc oS S ISS
" _ }
MOTOR ORIVE
CAP MOT tA)
45V)
Q701, 702
8701, 702
ass
RV81
BIAS CAL3
(REC BIAS)
reynanes.
=
REEL (&) +
MOTOR
M2 (ECK-B)
«8701-1
sgh seared
REEL (B) -
BRIVE
(i)
REEL
POWER
+
2am
~
BIAS CALO
1C803 (2/2)
MOTOR
po
ON
a703
+
'
|
«
BIAS CALI
POWER IN
~4—ore
mae ate
Oe
~
BIAS CAL2
(REC BIAS)
B-
(FOP)
REG
>t
Q707, 708
B707
D714
ia:
* Signal path.
SD
:PB(DECKA)
[>
:PB(DECKB)
[> : REC ( DECK B )
AC
IN

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