Sony ICF-SW35 Service Manual ▷ View online
– 9 –
C70
JC8
C66
C59
C67
C62
C54
L
8
L12
D10
L9
L10
D7
D5
D3
L7
JC3
L3
L4
D6
D11
L17
C2
C45
C55
C60
C65
C68
C73
R56
R85
C56
R53
R46
C47
C49
C53
C52
L16
X1
L15
R59
R55
R38
R35
R52
R43
R49
R50
R48
R45
C44
C39
C17
C21
R
1
R1
R9
R33
C35
R37
C32
R30
R25
R23
C18
R10
C16
R11
R5
R26
R7
R6
R4
C19
R47
C46
C36
R54
R63
R62
R60
R61
C51
R51
C50
L14
D9
JC18
JC7
R42
R34
C48
R17
C22
C20
R44
C40
R14
R15
C12
L6
L5
C10
C29
T2
C31
C8
C5
C7
R74
C28
C30
C9
C27
R24
C93
C90
C100
IC3
R75
C92
JW15
JW16
JW13
JW11
JW3
JW4
JW12
C91
D12
JC16
JC4
JC6
JC5
JC19
JC17
C26
R22
C25
C11
R8
C14
C13
C15
C38
C37
R36
C34
R29
C33
R28
R32
R31
C43
C42
Q20
R41
R40
R40
R39
C89
TP
(D-D OUT)
TP(10.25)
TP
(GND)
TP
(LCH)
TP
(B/R)
TP
(BEEP)
R65
R83
R64
JC11
JW7
JW5
C74
CF4
C57
C41
C58
RV2
JW8
JW10
Q
6
Q23
Q24
Q19
Q5
Q17
Q4
Q3
Q8
Q7
Q11
Q12
Q15
Q9
Q13
Q29
Q28
Q10
Q14
Q36
Q35
D8
Q18
D4
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
1
1
2
5
6
9
10
15
17
16
18
4
8
5
E
C
B
E
C
G
D
S
B
E
B
B
B
E
E
C
C
B
E
C
B
B
E
C
G
1
15
1
5
10
16
20
25
30
3
2
C
S
D
D
S
S
G
G
D
S
CN1
B
E
C
B
E
B
E
E
B
C
C
C
B
E
C
L11
L13
CT1
BPF1
TP
(GND)
IC1
CF2
C64
TP
(VT)
T3
S
G
B
E
C
D
TP
(VCOL)
TP
(H/L)
TP
(VCOH)
MW/L
TP
(POWER)
TP(RF GND)
TP
(AGC)
R
TP
(VT)
– main board (conductor side) –
FM VCO ADJUSTMENT
• Connecting Frequency counter
telescopic
antenna terminal
antenna terminal
0.01
µ
F
FM RF signal
generator
generator
98MHz, non-modulation
Output level: 0.1v(100dB)
Output level: 0.1v(100dB)
set
33 k
Ω
frequency
counter
counter
1
µ
F/50V
IC1 pin
7
IC1 pin
4
FM VCO ADJUSTMENT
Reading on Frequency counter
76 kHz ± 200 Hz
Adjustment Part
RV2
Adjustment Location:
TP
(VT)
IC1
IC3
IC2
1
1
17
2
18
4
8
4
1
8
5
5
1
8
15
16
16
9
30
CN1
G
B
R
N
J1
S1
T1
T4
S2
RV2
L11 CT1
ANT1
FM/SW
TELESCOPIC
ANTENNA
ANT2
MW/LW
FERRITE-ROD
ANTENNA
(CONDUCTOR SIDE)
FM TRACKING ADJUSTMENT
AM IF ADJUSTMENT
FM VCO ADJUSTMENT
– main board (component side) –
– 10 –
SECTION 4
DIAGRAMS
4-1. IC PIN DESCRIPTION
• IC201 uPD17072GB-017-1A7 (SYSTEM CONTROL, LCD DRIVER)
Pin No.
Pin Name
I/O
Pin Description
1
CS
O
EEPROM CS control output
2
POWER
O
Power supply (for signal ) start output H: Radio ON L: Radio OFF
3
BAR/ROD
O
Antenna switch output H: BAR ANTENNA L: ROD ANTENNA
4
MUTE
O
MUTE output H: MUTE OFF L: MUTE ON
5
AM/FM
O
Band switch signal output H: SW, MW, LW L: FM
6 – 9
KS0 – 3
O
Key source output
10 – 13
KR0 – 3
I
Key return input
14
INITIAL
O
9K/10K read output
15
NORMAL/FINE
I
Frequency step switch input H: FINE L: NORMAL
16
H/L
O
SW filter switch signal output H: SW L: FM, MW. LW
17
10.25
O
Attenator output
18
GND
—
GND
19
EO
O
Tuner PLL error output
20
VCOL (LW/MW/SW)
I
VCO (SW/MW/LW band) input
21
VCOH (FM)
I
VCO (FM band) input
22
REG0
—
Capacitor terminal (regulator circuit)
23
VDD
—
Power supply terminal (+2.7 V)
24
XOUT
O
Oscillation output (75 kHz)
25
XIN
I
Oscillation input (75 kHz)
26
REG1
—
Capacitor terminal (regulator circuit)
27
REGLCD0
—
LCD driving power supply terminal
28, 29
CAPLCD0, 1
—
LCD driving power supply terminal
30
REGLCD1
—
LCD driving power supply terminal
31 – 34
COM0 – 3
O
LCD drive common output
35 – 49
LCD0 – 14
O
LCD drive segment output
50, 51
VDET1, 2
I
Reducing voltage information input
52
BEEP
O
Beep output
53
TUNE
I
Receive information input
54
HOLD
I
Hold input
55
SCK
O
Serial clock output
56
DI/DO
I/O
Serial data input/output
4-2. BLOCK DIAGRAM
– 11 –
– 12 –
ICF-SW35
ICF-SW35
– 13 –
– 14 –
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
JC13
C102
C78
C80
C81
C86
C87
GRY
C69
C70
R58
JC8
C66
C59
C67
C62
C54
C23
L8
L12
D10
L9
L10
D7
D5
D3
L7
JC3
L3
L2
L21
L1
D18
L4
D2
D6
D11
L17
C24
C45
C55
C60
C61
C65
C68
C73
R56
C82
C75
C76
C79
R71
R57
Q21
Q22
R85
C56
R53
R46
C47
C49
C53
C52
L16
X1
L15
R59
R55
R38
R35
R52
R43
R49
R50
R48
R45
C44
C39
C17
C21
R13
R12
R9
R33
C35
R37
C32
R30
R25
R23
C18
R10
C16
R11
R5
R26
R7
R6
R4
R21
R2
Q16
R20
C3
C19
R47
C46
C36
R54
R63
R62
C85
C72
C71
C101
C77
R67
R70
R66
RV3
R60
R61
C51
R51
C50
L14
D9
JC18
JC7
R42
R34
C48
R17
R16
C22
C20
R44
C40
R14
R15
C12
L6
L5
C10
C29
T2
C31
C8
C5
C7
R27
R18
JC21
C1
JC1
JC2
C4
R1
R84
R72
R73
GRY
C84
C88
R82
R74
C28
C30
C9
C27
R24
C93
C90
C100
IC3
R80
WHT
RED
JC22
R75
C92
JW15
JW16
JW13
JW11
JW3
JW4
JW12
C91
R81
D16
D15
11
(11)
1-677-230-
D12
JC16
JC4
JC6
JC5
JC19
JC17
C6
JW1
JW2
GRN
BLK
RED
R19
R3
C2
C26
R22
C25
C11
R8
C14
C13
C15
C38
C37
R36
C34
R29
C33
R28
R32
R31
C43
C42
Q20
R41
R40
R40
R39
C89
TP
(D-D OUT)
TP(10.25)
TP
(GND)
TP
(LCH)
TP
(B/R)
TP
(BEEP)
R65
R83
R64
JC9
JC10
Q25
JC11
JC20
JW6
JW7
JW5
JC15
R69
R68
C83
C96
R76
C
E
B
C
E
B
C97
C99
R77
R79
C98
R78
D14
C95
C94
D13
L18
C74
CF4
C57
C41
C58
RV2
JW8
JW10
L19
JC12
JC14
Q26
Q6
Q23
Q24
Q19
Q5
Q17
Q4
Q3
Q8
Q7
Q1
Q2
Q11
D1
Q27
D17
Q32
Q34
Q12
Q15
Q9
Q13
Q29
Q28
Q10
Q14
Q36
Q35
D8
Q33
Q18
Q30
Q31
MAIN BOARD
D4
04
16
15
9
10
1
5
8
C
E
B
-2
-1
S2
MUSIC
NEWS
TONE
NEWS..MUSIC
-2
-1
S1
S1
ON
OFF
ATT
ON..OFF
RV1
RV1
MIN MAX
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
1
1
2
5
6
9
10
15
17
16
18
4
8
5
E
C
B
E
C
B
E
C
B
E
C
B
B E
E
C
B
E
C
G
D
S
B
E
C
B
B
B
E
E
C
C
B
E
C
B
B
E
E
C
G
1
15
1
5
10
16
20
25
30
3
2
C
B
E
C
B
E
C
S
D
D
S
S
G
G
D
S
G
N
C
B
E
C
+
+
SP1
SPEAKER
L20
CN1
1
MICON BOARD
CN201
B
E
C
B
E
B
E
E
C
B
C
C
E
B
E
E
C
B
C
C
E
B
E
E
B
C
C
C
B
E
C
T1
L11
L13
CT1
CF1
CF3
BPF1
TP
(FM ANT)
TP
(GND)
IC1
T4
CF2
C63
C64
TP
(TUNE)
TP
(GND)
TP
(AM/FM)
TP
(VT)
T3
S
G
B
E
C
D
TP
(VCOL)
TP
(H/L)
TP
(VCOH)
ANT2
MW/LW FERRITE-ROD ANTENNA
JW14
TP
(POWER)
TP(RF GND)
J1
J2
DC IN 4.5V
DRY BATTERY
SIZE " AA "
(IEC DESIGNATION R6)
3PCS, 4.5V
TP
(AGC)
ANT1
FM/SW
TELESCOPIC
ANTENNA
IC2
T5
w
VOL
R
A
MICON
BOARD
C238
i
!
(US)
4-3. PRINTED WIRING BOARD — MAIN SECTION —
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
f
: internal component.
•
b
: Pattern from the side which enables seeing.
D13
F-3
D14
F-3
D15
F-12
D16
F-12
D17
F-12
D18
C-12
IC1
C-5
IC2
D-3
IC3
F-10
Q1
D-13
D1
D-13
D2
B-12
D3
C-9
D4
C-9
D5
C-9
D6
C-9
D7
C-9
D8
D-8
D9
E-7
D10
C-8
D11
C-7
D12
E-10
• Semiconductor Location
Ref. No.
Location
Ref. No.
Location
Ref. No.
Location
Ref. No.
Location
Ref. No.
Location
Q2
D-12
Q3
C-10
Q4
C-9
Q5
C-9
Q6
C-7
Q7
D-11
Q8
C-11
Q9
D-11
Q10
D-10
Q11
D-11
Q12
E-9
Q13
E-9
Q14
E-10
Q15
E-10
Q16
C-11
Q17
D-9
Q18
D-8
Q19
D-8
Q20
D-7
Q21
C-4
Q22
B-4
Q23
D-7
Q24
D-6
Q25
D-4
Q26
C-2
Q27
E-12
Q28
E-10
Q29
E-10
Q30
F-3
Q31
F-3
Q32
F-12
Q33
F-12
Q34
F-11
Q35
E-8
Q36
F-9
(Page 18)
•
f
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 4.5 V and fed with regulated dc power supply
from battery terminal.
• Voltage is dc with respect to ground under no-signal (detuned)
condition.
no mark : FM
(
no mark : FM
(
) : MW/LW
<
> : SW
• Signal path.
F
: FM
f
: MW/LW
h
: SW
(Page 18)
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