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Sony ICF-SW1 - Page 18

Sony ICF-SW1
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FORMER
TYPE
FORMER
TYPE
1
2
3
4
)
6
7
8
9
10
11
12
13
14
15
16
17
5-6.
SCHEMATIC
DIAGRAM
_
®
See
page
14
for
liquid-crystal
panel
(LCD801).
@
See
page
35
for
switch
position
and
IC
block
diagrams.
FORMER’
TYPE
18 19
20
21
[
MAIN
BOARD]
a
C409
0.01
peegee
$$}
——$§
R406
100k
EARL
AME
|
—9
+
—_¢-—_——
cai3
¢
di
p
28K238
{1
Saree
0403
AEP"
lan
ANT
2
UK
\
LW/
MW
LW/MW
Q2
=H
120.
bor
E
B
FERRITE
~ROD
RF
AMP
2SK238KI6
'
ANTEHNS
8
Australian
=
R443
100k
OG
It
is
needed
to
replace
all
those
parts
marked
3*
at
the
same
time
in
case
when
necessary
replacement
for
one
of
them.
RENO
Ada
CLL
Ficie
LAMBRA
SIMS
SZ
ree;
BS
(SHRCPARMMNBECT,
C
(2.75)
(2.9)
St
mixl2.75))
Q3
R19
ANTI
a
0
FM/SW
=
2SK6I3-2
TELESCOPIC
R9
ANTENNA
a
GSk258KI6,
1
870
2.7uH
=.
(0)
FM
SD
A)
LEVEL
SHIFT
A
D
'
Shy
a
-
0
Q6
Q
(2.9)
q7
(2.85)
2SK209¥
DTCI24EU
IST
MIX
orelzacu
((0))
IF
AMP
ety
iN
CH
|ST
OSC
a
>
35
25
a
fsa
|s
J
Ss
'
409
XN4608
9201
HIGH
CUT
Q4i3
0
0408
FM
MULTI
2SC4i78
far
ose
bass
2sc4l78
escal7e
D204
AM.2NO
Te
i
C422
SWITCH
DTC124EU
(2,65)
2SC4177
DTCI24EU
VCO
SWITCH
IST
OSC
2ND
OSC
IT33
STEP
SWITCHING
BUFFER
BUFFER
20mSEC
Le
MUTING
G
FM
OSC
20mSEC
>
'
BUFFER
Se
lca
ay
wioM
mA
et
me
Sh
3
_
a
Le
el
mae
NI
cee
a
e—a
6
2.
3
4
2
9
lOmSEC
13
|
14
&
pia.)
——
Om
-
SSS
3
td
.
O==O
O
-
—_——————
«
©
ie
-
CO
C)
ee
ee
eee
-
-
;
R848
;
(2.9)
1k
IC
1
0}6)
IC
3104
TR
3V
ba
R626
|
i
ea
eee
x
aa
:
;
,
D604
:
consanr
Ky
R822
-|—
R620
power
AMP
eo
¥
veel
'
CURRENT
DC-
DC
2SB8
1
5B6
9809
10k
tS
B+
SWITCH
XN4608
3
rage
|°*
1
CONVERTER
B+
SWITCH
3V
2
MUTE
av,
9801
SWITCH
(Tues
peor
|||)
ee
i
pao!
0808
!
PLL
LPF
1S$304
&
he
|
TOTAL
a
a
“tonal
!
a
CURRENT
=
\|
|
ee
:
Cty)
Se
)
ast
ied
DRY
BATTERY
i]
SW
bs
35mA
A
SIZE"AA'
v
(IEC
DESIGNATION
R6)
R632
2PCS
,
3V
XNI2I5
£830
=
;
'
PLL
LPF
ve
ana
Sie
aie
LED
ORIVE
Lep14
AEP
TYPE
2,E
TYPE
2,
Q804
t
SP6O0I
|
=
IC
801°
801
Lenis
Saudi
es
Mojdel
28C41771.35
3V
35
SER
PER
20k
R
CH
.
1C801
/
J
(20)
vop
LeD1é
FM
uPD17156-545-22
RV6OI
:
21)
M
SYSTEM
CONTROL
KO
AEP
TYPE
I-|2,
s8
ar
vel
VOLUME]
|
on
22)
;
E
TYPE
2,
a
DECODER
Doni
Wheeasna
4
seor
fo
BAS208AF
1C804
|
POWER
AMP
SEER
Ro
Soy
be
yore
2,
la
Lenore
||
Ce
:
ans
2
SE
PR:
C00?
Sree
Gai
ale:e)
=
ie
ane
ich
11)
BOT
C8087
28B8l586
|
ay
by
_NEWS
|
RV601-2
av
(2)
0
15
ill
Fa
7D
[yaork
fmin—fmax
4!
K
'
(27)
0
C626
tI
is
C627
Ber
sphe-2)
(2.9)
0.022
[ECL
IST]
0,022
&
LW/|MW
Bt
SWIITCH
3
0.
'
0814
2.65
on
Q807
2.9.
|
2SB8!
5B6)
2-2)
pdD
L
Vl
DICt14TU
:
(2.615)
i
=)
(a
0
LW/MW
R827
8,
i
0
e
co
Silo
SWITCHING
10k
(0)
-V
6
US
0
[Z1si05
i
O
M~
sw
2.90
:
|
hs
a
[Five
Ser]
i
a
er
eee
0606
9607
0
.
e
o
|
Ppa
268
28D1048X7_
—-_2SD1048X7
|
pare
1
sios
STE,
°°
[WAIN
POWER
eek
N
2b
es)
——
es
pi
V4
i
ON
7
:
be———
sees
A
'
iC
804
I
Schematic
Diagram
Note:
Voltages
are
taken
with
a
VOM
See
ae
EN
T
alte
=
ee
asis
fn
;
@
All
capacitors
are
in
uF
unless
otherwise
noted.
pF:
uwuF
Voltage
variations
may
be
noted
due
to
normal
produc
I
O
CKEY
BOARD]
(1.45)
es
E
50WV
or
less
are
not
indicated
except
for
electrolytics
tion
tolerances.
=
3
TLURI
22
B+
SWITCH
Y
and
tantalums
Waveforms
are
taken
with
a
oscilloscope.
s
.
wa
2
|
M
F
aplaaed
2.
2
@
All
resistors
are
in
9
and
1/,W
or
less
unless
otherwise
Voltage
variations
may
be
noted
due
to
normal
produc
ww
Slol—
a
1
ified
tion
tolerances.
=
1.8VP-P
10\-SI09,
SI
Stl4
specitied.
:
2
7
O
PRESET/
BAND
Ra29
re
e
A
:
internal
component.
Signal
path.
873
DIRECT
TUNE]
[ALARM
SET
o
eee
Be
bak
o>
=
FM
.2
$
;
a;
r)
]
:
adjustment
for
repair.
=
=
LW/MW
i]
uw
e@
Power
voltage
is
dc
3
V
and
fed
with
regurated
dc
power
=>:
SW
:
supply
from
external
power
voltage
jack.
N
:
10
e
Voltage
and
waveforms
are
dc
with
respect
to
ground
||
Y
under
detuned
conditions.
2.1|__
CE
no
mark:
FM
;
~_
MUTE
meu
2.1
(
os
SW
ROD>——
:
:
(
)
:
LW/MWw
{MICRO
COMPUTER
BOARD]
|
=
Se
==2§—
—99—

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