Read Sony ICF-S10MK2 (serv.man2) Service Manual online
ICF-S10MK2
8
8
R8
R1
C8
C5
R6
C7
C18
MAIN BOARD
C1
C6
C10
C9
C12
C23
C21
C4
+
+
C11
R7
R3
R4
R2
C14
C13
C3
C2
L2
R5
C15
+
C24
+
C20
C22
+
C19
+
+
C17
+
C16
+
CF1
T1
SW1
BAND
SW1
FM
AM
L4
R10
VOL
RV1 (1/2)
OFF
RV1 (2/2)
CF2
CF3
TUNE
D1
L3
L5
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
2PCS. 3V
SP1
+
–
J1
v
(11)
11
1-662-703-
CT4
CV1-4
CV1-3
CV1-2
CV1-1
CT1
CT3
CT2
TUNING
CV1
ANT1
L1
AM FERRITE-ROD ANTENNA
IC1
A
B
C
D
E
F
1
2
3
4
5
6
7
1
30
15
16
TP
(FM ANT)
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
W
: indicates side identified with part number.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
5-2.
NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 3 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground in
no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : AM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: FM
f
: AM
5-3.
PRINTED WIRING BOARD
• IC Block Diagram
IC1
CXA1019S
1
2
3
4
5
6
7
8
9
10
15
14
13
12
11
FM
DISCRIMINATOR
AF POWER AMP
AM FE
FM IF
TUNING
METER
AM IF DET AGC
FM FE
23
22
21
20
24
25
19
18 17 16
29 28 27 26
30
GND
GND
AF OUT
VCC
RIPPLE
FIL
TER
AF IN
DET OUT
AFC AGC
AFC AGC
IF GND
METER
N.C
FM IF IN
AM IF IN
FM/AM BAND
SELECT
FM/AM
IF OUT
FE GND
N.C
AM RF IN
FM RF
REG OUT
FM OSC
FM RF IN
AFC
AM OSC
VOL
NF
FM DISCRI
GND
GND
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