Sony ICF-S79 / ICF-S79L / ICF-S79V Service Manual ▷ View online
• IC Block Diagrams
– MAIN BOARD –
– MAIN BOARD –
IC1
TA2030FN (EL)
IC2
CXA1019M
FM FE
TUNING METER
AM IF DET AGC
AF POWER AMP
FM IF
FM/AM
IF OUT
FM RF IN
FE GND
NC
AM RF IN
FM RF
FM OSC
REG OUT
AFC
AM OSC
NF
VOL
FM DISCRI
GND
FM/AM BAND
SELECT
FM IF IN
AM IF IN
NC
METER
IF GND
DET OUT
AFC AGC
AFC AGC
AF IN
RIPPLE FILTER
AF OUT
VCC
GND
AM FE
FM
DISCRIMINATOR
14
13
11
9
8
7
2
1
6
5
3
4
15
16
17
18
19
20
21
22
23
24
25
26
27
28
12
10
MIX OUT
OSC OUT
FM OSC
TV OSC
VCC
FM RF
TV RF
GND
TV IN
TV BY
RF GND
FM BY
FM IN
MODE SW
PW SW
IF OUT
16 15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
TV
OSC
BUFFER
MIX
FM RF
AMP
IF
AMP
POWER/MODE
SWITCH
TV RF
AMP
BUFFER
FM
OSC
– 2 –
Page
Before Change
After Change
Ref. No.
Part No.
Description
Remark
* 4
A-3683-150-A MAIN BOARD, COMPLETE (S79V)
12
7-685-552-14 SCREW +BTP 3X25 TYPE N-S
19
3-043-481-01 SHEET (B), INSULATING
20
3-043-482-01 INSULATING SH
21
3-043-480-01 SHEET (C), INSULATING
Ref. No.
Part No.
Description
Remark
15
* 4
A-3679-919-A MAIN BOARD, COMPLETE (S79V)
12
7-685-152-19 SCREW +BTP 3X25 TYPE N-S
• Change
• EXPLODED VIEW
!
: indicates added portion.
6
7
8
6
7
not supplied
not
supplied
supplied
not
supplied
supplied
19
20
21
$
%
#
$
– 3 –
Page
Before Change
After Change
Ref. No.
Part No.
Description
Remark
3-040-605-01 SUCKER
3-860-702-11 MANUAL, INSTRUCTION
3-860-702-11 MANUAL, INSTRUCTION
(ENGLISH, FRENCH, GERMAN, ITALIAN)
3-860-702-21 MANUAL, INSTRUCTION
(DUTCH, SWEDISH, SPANISH,
PORTUGUES) (S79)
3-860-702-31 MANUAL, INSTRUCTION
(FINNISH, DANISH) (S79)
X-3897-401-1 STRAP ASSY (S79, S79V)
Ref. No.
Part No.
Description
Remark
19
3-917-356-01 SUCKER
3-860-702-11 MANUAL, INSTRUCTION
3-860-702-11 MANUAL, INSTRUCTION
(ENGLISH, FRENCH, GERMAN, ITALIAN)
3-860-702-21 MANUAL, INSTRUCTION
(DUTCH, SWEDISH, SPANISH,
PORTUGUES)
3-860-702-31 MANUAL, INSTRUCTION
(FINNISH, DANISH)
X-3897-401-1 STRAP ASSY (S79V)
• ACCESSORIES & PACKING MATERIAL
– 4 –
ICF-S79/S79L/S79V
D1
B-10
D2
B-11
D3
A-10
D4
A-11
D5
H-11
D6
I-15
D10
B-12
D11
B-12
D12
C-16
D13
C-16
IC1
C-10
IC2
F-16
IC3
C-16
IC4
C-15
IC5
C-15
IC6
B-14
IC7
F-14
Q2
B-16
Q3
H-16
Q4
B-12
Q5
A-12
Q6
B-6
Q7
F-14
Q8
E-14
Q9
E-14
Q11
C-12
Q12
A-13
Q13
D-16
Q14
C-15
Q15
E-13
Q16
E-13
– 5 –
– 6 –
– 7 –
– 8 –
• PRINTED WIRING BOARDS (ICF-S79V)
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
W
: indicates side identified with part number.
•
z
: Through hole.
•
f
: internal component.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
• Semiconductor
Location
Ref. No.
Location
R63
JC32
JC2
JC31
C123
L13
JC24
JC25
C77
C93
C31
C29
C74
R62
R61
L12
L14
R17
R12
R13
C28
C30
JC23
JC21
C124
JC22
C35
E C B
Q6
05
1-676-960-
(11)
11
MAIN BOARD
(COMPONENT SIDE)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
A
B
C
D
E
F
G
H
I
J
KEY BOARD
1-676-961-
(11)
11
9
1
S101
RADIO
ON
S108
WEATHER
S113
S106
S106
S105
S104
S103
S102
OFF
S107
S110
BAND
S112
S111
CLOCK
S109
TIMER
SET/ON/OFF
+
–
TUNE/TIMER ADJUST
TIME ADJUST
5
S105
4
S104
3
S103
2
S102
1
PRESET TUNING/PRESET TIMER
C66
C67
C68
C69
C70
C71
C72
C73
R65
R58
R54
JC11
R53
JC5
R86
C87
C116
C40
C92
R91
JC13
R48
C89
R92
R90
C36
C48
C53
C109
C110
C108
R31
C39
C44
R5
C96
C34
R26
C43
JC10
R45
R28
C65
C102
C101
R29
JC6
JC7
C86
R56
R57
R55
R52
R51
C100
R87
R50
R49
R46
C118
JC3
JC14
R89
C47
R30
C94
R25
C95
R27
C42
R32
C52
C41
R47
C111
C88
R93
R85
R59
C76
C20
C5
C57
C58
C107
JC30
R20
C105
C27
C113
C103
C104
JC9
C120
C59
C11
C75
C99
JC29
R19
C112
C121
C3
C6
C119
L10
L8
L9
C62
C114
C115
R60
R43
R42
C60
C80
C55
R33
R35
R94
R15
C122
C4
C17
C23
C19
C18
C83
C84
C85
R40
R67
R68
R69
R70
R71
R72
R73
R74
R75
R76
R77
R78
R79
R80
R81
R82
R83
R84
C91
R18
C12
C106
JC27
C14
C9
R64
R44
R36
C32
R34
R1
R9
R8
R3
R4
R10
R11
C21
C2
C1
R2
R16
C25
R39
R38
R41
C63
C8
C22
C79
C78
C81
C82
C117
R66
IC6
IC1
IC2
IC5
IC4
IC3
E C B
Q2
E C B
Q13
E C B
Q8
E C B
Q7
E C B
Q9
E C B
Q15
E C B
Q16
E C B
Q3
1-676-960-
(11)
11
MAIN BOARD
(CONDUCTOR SIDE)
1
9
1
14
15
28
29
42
43
56
1
8
16
9
3
2
1
A
K
D13
3 4
2 1
3 4
2 1
1
14
15
28
IC7
1
2
3
K
A
D10
K
A
D11
A
K
D2
A
K
D1
D3
K
A
D4
K
A
D12
K
A
D6
K
A
A
D5
K
A
A/K
Q5
B C E
Q4
B C E
E C B
Q14
2B 2E 1E
2C 1B1C
Q12
2B 2E 1E
2C 1B1C
Q11
TP
(VT)
TP
(GND)
C46
+
C64
+
C54
+
C50
+
C45
CF3
CF2
+
C51
+
C38
+
C98
+
C13
+
C33
+
C56
+
1
10
18
LCD1
(LIQUID CRYSTAL DISPLAY)
CT2
CT1
CT3
CF1
X1
L3
FM RF
L1
TV RF
L4
FM OSC
L2
TV OSC
L11
TV IF
1
4
2
3
5
T2
DC/DC
CONVERTER
T1
AM IF
L6
AM OSC
RV1
YOL
T2
1
2
3
5
4
L5
AM FERRITE-ROD
ANTENNA
ANT1
TV/FM
LEADWIRE
ANTENNA
DRY BATTERY
SIZE "C"
(IEC DESIGNATION R14)
3PCS. 4.5V
B.P.F
BPF1
SP1
WHT
RED
PRESET
SELECT/
5
1
WHT
RED
L7
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