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Sony CFS-B31 Service Manual

Sony CFS-B31
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CFS-B31/B31L
5-4.
SCHEMATIC
DIAGRAM
TUNER/LCD
SECTION
*
See
page
8
for
IC
Pin
Function.
(IC901)
1
2
3
4
5
6
7 8
93
10
11
12
13
14
15
16
17
18
*
(_____]
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designation.
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IC
Block
Diagram
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seer
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:
a
va
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D
a
ei
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BH
2|
#
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are
not
indicated
except
for
electrolytics
id
FE
OUT
NO
RF
IN
AM
IN
FM
RF
REG
FM
OSC
AFC
AM
OSC
MUTE
FM
BISCRI
|
MPX
REG
|,
GNB
IF
2
and
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|
ad
leg
cone
VCO
CHECK
PILOT
BET
8)
25
e
All
resistors
are
in
Q
and
1/4W
or
less
unless
otherwise
Dp
N
7
Hp
Eh
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&
specified,
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for
repair,
Seb
tit.
Oy
alll
piesa
Geammece
eas
gn
tl
SG
oe
eter
he
ips
<=
tale
gt
S
5
5
~
ia
g
*
Voltages
and
waveforms
are
dc
with
respect
to
ground
+
z
under
no-Signal
conditions,
gr BS
.
:
:
astbas
no
mark:
FM
-
o
c908
a]
MUTE
co
MUT
ING
\;
AM
100°
6,
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Se
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ee
.
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BAND
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4)
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are
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o
VOM(Input
impedance
|0MQ),
F
diay
al
9
fof
BATA
ff
3
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Voltage
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ee
SWEGHING
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tolerances,
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6
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2
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Signal
path
es
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Bac
Att
ttt
|)
5.7
Switch
27
TF
=
ai
7
=
3
[tu
cee
|
Bae
Si Pe
ss
:
z
2shibon
:FM
ald
fy
2
a
ae
(ee
leafs
=
Bt
SWITCH
S
5
oa)
=
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|
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ry
Lips
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0903
|
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|
25C2786
Ud
uA
BUFFER
é
«
1
cn2
1!
7
L902
2.2sH
=
és
ot
990
28K6794-T
1
=
2
_
LPF
1.4
H
3
R902
10x
c901
1
BRY
BATTERY
2
SIZE"AA”
a
(ree
BES1GNATION)
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F
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ad
2
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SECTION
g
I
|
SE
09
—15— —16—
47

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Sony CFS-B31 Specifications

General IconGeneral
BrandSony
ModelCFS-B31
CategoryCassette Player
LanguageEnglish

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