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Sony ICF-7600DA - Page 28

Sony ICF-7600DA
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MAIN
SECTION
|
MAIN
SECTION
15
16
17
18 19
20
21
22
23
24
25 26
27
28 29
30
31
Note:
en
ea
nm
oo
ooo
wn
co
se
eee
ee
e
All
capacitors
are
in
uF
unless
otherwise
noted.
pF:
wuF
50
WV
or
less
are
not
indicated
except
for
electrolytics
ie
and
tantalums.
:
e@
All
resistors
are
in
9
and
1/,W
or
less
unless
otherwise
'p#
US,
Conadian,E
MODEL
D23-25.40-42
r
specified.
3p:
AEP,
UK,
FRANCE,
AUS
IT32
1
FM
signal
path
ee
US
MODEL
[==>
:
MW/LW
signal
path
>
lop
FM
Osc
g
“4
Q
SW
signal
path
(C
VO,
e
4
__:
internal
component.
:
.
1$2837
[
Ref
S
©)
Switch
v1
!
ee
aS
|
No.
-
©
5
si
|
TONE
MUSIC
i
$201
|
POWER
ON/OFF
ALARM
OFF
|
OFF
i
a
$202
|
SLEEP
OFF
1
(3(|Seace
$203
|
KEY
PROTECT
OFF
FF
C6
aoe
0
1
|
026
1$2837
!
40)
023
=
beneta
cave
|
[aaa
2
$204
|
STANDBY
OFF
,
3s
vor
7
RES
|
LONER
SMITE
;
SAV
|]
$205
|
mb
select
©
OFF
5
MODEL
gi
ee
osiil
t
|
;
|
Y
S206
|
mb
select
>
OFF
zs
FM
IF
AMP,
DET
|
$207
TIME
SET
CLOCK
OFF
ais
Se
|
MAME
AE
AE
7
al
BZ
J3
$208
|
TIME
SET
ALARM
OFF
Cl24EK
Sy
3
One
O,
?
i=
s209
|
sw
OFF
‘CT
SWITCH
23
3
a
ii
$210
|
MW/LW
OFF
a5
z
°
Ceo
$211
|
FM
OFF
oe
gi
$212
|
PRESET
1
OFF
3
2
$213
|
PRESET
2
OFF
&
$214
|
PRESET
3
OFF
$215
|
PRESET
4
OFF
$216
|
PRESET
5
OFF
=
$217
|
ENTER
OFF
g
$218
|
MW
CH
STEP
9kHz
$219
|
MAIN
POWER
OFF
S220
|
ALARM
:
RADIO
DRY
BATTERY
=
oc-D¢
UEC
SENaTIGN
R6)
.
a
ioe
:
CONSTANT
CONVERTER
4PCS,
6V
e
pane
voltage
is
6
V
and
fed
with
regulated
DC
power
CURRENT
supply.
Q28
Q29
Voltages
are
dc
with
respect
to
ground
in
detuned
mode
2SC1623-L6
2S0596-DV3.
with
VOM
(DC
50k
9/V).
Voltage
variations
may
be
OC
RurRoe
er
eee
noted
due
tolnormal
production
tolerances.
Ge
een
ROOK
=
et
ee
|
no
mark:
FM
mode
[Oreo
N
(
):
MW/LW
mode
(
))
:
SW
mode
@
Waveforms
are
taken
to
ground
in
no
signal
mode
by
|
1
FM:
37mA
ar
ae on
|
TOTAL
J
MW/LW:35mA
IC7
wPC35862
La
cit
|
‘AGC
AMP
(5)(6)(7)—(8)
Roe
|
R10!
|
using
oscilloscope.
@30
10k
>
|
Voltage
variations
may
be
noted
due
to
normal
produc-
6
ie
R99
|
'
tion
tolerances.
rep
ase
cra
ee
Doig
|
LO-G-OX)
|
IC4
CXA1031M
|
|
t
Q2!
Q22
Q23
mele
$I
2SD596-DV3
2SCIG23-L5
DTICIZ4EK
ews
MUTING
FM
MUTING
SWITCHING
Q24
aS
2SC1623-L5
ee
oo
LOW
PASS
FILTER
ald
Ss
:
u
58
8
.
2
2
=
150k
aS
,
@F
Z,s
soa
e
=
=
324
62
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&#
8
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ES
S
4
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(9)
()
(6)
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|
a
ey
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039
039
SERIAL
NO.7902
AND
LATER
PTEPST™
issizs
|
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UP
TO
SERIAL
NO.7901
enrages
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KEY
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TO
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BOARD
DISCRI
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