Read Sony ICF-F11S / ICF-F12S Service Manual online
ICF-F11S/F12S
ICF-F11S/F12S
9
9
5-1. PRINTED WIRING BOARD - MAIN Board -
•
: Uses unleaded solder.
W
1
C6
C7
C4
CT1-4
CV1-4
CV1-1
CV1-2
CV1-3
CT1-1
CT1-2
L5
CT1-3
C35
JC2
C22
C20
C28
C27
C33
C32
C36
Q1
C29
R5
R1
C24
R4
C21
C1
C2
C12
C13
C8
C9
C10
C1
1
C14
C15
C16
JC1
C17
C37
D1
A/K
A
K
ANT
TP
(ANT)
ANT1
FM/SW
TELESCOPIC
ANTENNA
R2
R3
L1
1
L2
T1
L7
J1
L6
CT3
CT2
C26
C30
C34
SP1
C25
C
B
E
E
RV1
VOLUME
CF2
CF3
JW3
JW4
W3
DRY BATTERY
SIZE "D"
(IEC DESIGNATION R20)
2PCS. 3V
BPF1
BAND PASS FILTER
NATURAL
C31
L8 (F11S)
(F12S)
BLK
RED
JW5
JW2
JW1
C19
L1
MW FERRITE-ROD ANTENNA
C23
L3
30
15
3
1
16
CF1
IC1
+
+
+
+
+
+
+
SP+
BRN
BLK
SP–
W4
L4
CV1
TUNING
S1
BAND
S2
POWER
FM
MW
ON
OFF
SW
TP
(SP+)
TP
(SP-)
TP
(GND)
(F12S)
W2
-1
-6
-2
-3
-4
-5
(F11S)
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
1-874-716-
11
(11)
MAIN BOARD
SECTION 5
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω and
1
/
4
W or less unless otherwise
specifi ed.
• f : internal component.
• C : panel designation.
• C : panel designation.
• A : B+ Line.
• C : adjustment for repair.
• Power voltages is dc 3V and fed with regulated dc power
• C : adjustment for repair.
• Power voltages is dc 3V and fed with regulated dc power
supply from battery terminal.
• Voltages are dc with respect to ground in no-signal (de-
funed) conditions.
no mark : FM
( ) : MW/SW
• Voltages are taken with a VOM (Input impedance 10 M
( ) : MW/SW
• Voltages are taken with a VOM (Input impedance 10 M
Ω).
Voltages variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
F
:
FM
f
:
MW
h
:
SW
THIS NOTE IS COMMON FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• W : indicates side identifi ed with part number.
• f : internal component.
•
• X : Parts extracted from the component side.
• W : indicates side identifi ed with part number.
• f : internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• IC Block Diagram
– MAIN Board –
– MAIN Board –
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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