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Sony CFS-B31 Service Manual

Sony CFS-B31
22 pages
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CFS-B31/B31L
5-2.
BLOCK
DIAGRAM
13
FM
DISCRI
ar
ae
FM/AM
FRONT-END
FM/AM
IF,
MPX
PRE
AMP
POWER
AMP
a
Ic1
U/2
e
69
IC1
(2/2)
1301
RV301
RV302
10302
TONE
VOLUME
TELESCOPIC
IF
he
MIC3O1
ae
ANTENNA
A
:
19
SacNES
=
[
FM
FRONT-END
]
(6)
Ets
FILTER
-E=D+(13)
FM
IF
iS
|
ae
|
(6)
t
i
i
(9)
AM
FROMT-END
MUT
ING
SP201,
202
FERRITE
ES
|
a
FROMT-EN0
|
FILTER
©
AM
IF
pha
ANTENNA
yy)
1O3
4
[
|
Reh
m4
G4)
TUNING
INDICATOR
MUT
ING
Wee
AM
OSC
SELECT
302-1
FUNCTION
6)
69
TAPE/
*R-CH
is
omitted.
RABIO
OFF<-AM<-FM
,
©
Q
G)
——
¢
Signal
path,
“FM
=
>
—_
|
BUFFER
zo
Li
7eti
[¥]
tad
eae
=|z
:
at
FM
osc
4?
:
$+.
FM
RFA
a
)
SWITCHING
SWITCHING
Q7
ogee
revra
9
eee
ie
a
>
BB
HEAD
_¥¥Y
_y¥yv
8301-1
$301-2
PB
—*
REC
>>>
‘REC
HESO1
ERASE
KE
HEAD
$302-2
TZ01
FUNCTION
BIAS
OSC
TAPE/
|
RADIO
OFF<-AM<-FM
praca
aa
[>
|
BLAS
B90
=.
7801
CNJ801
FM
MODE/ISS
Q301,
302
P
;
QWER
1882
Bt
TRANSFORMER
L\
L\
£\
STBY
+9V
is
REG
REC
T
o
Q303
8801-804
Ee
|
FA
a3
j
i
TUNE
3-2
FM
MODE/ISS
STEREO
—»
MONO
$30
BUFFER
LPF
STBY
Q903
Q8.
901
+9V
4
'
_
My.
BACK
uP
_[_
301
@)
$301-4
PRY
BATTER
a
RADIO
+B
SW
AD
[OPR/BATT]
Jo
a
+B
PB->REC
SIZE"AA™
<8
!
IEC
BESIGNATION
sd
R6
3601
a7.
8
2PCS.
3V
on
ee
T
BRY
BATTERY
IZE"C”
55)
a
Bu
aed
>
IEC
Se
isk
eB
Hao
ieee
gh
LCD
BRIVER/CONTROL
MOTOR
6PCS.
9V
1¢901
PC2
PC1
PCO
LCD1—LC813,
COM1-COMS
6)
6))
@
OBO
i
eee
ip
K
§301-904
Nero!
09
75KHz
Lea
ig
—10—
WN

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Sony CFS-B31 Specifications

General IconGeneral
BrandSony
ModelCFS-B31
CategoryCassette Player
LanguageEnglish

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