Printed Wiring Boards - Sony ICF-C112 Service Manual

ICF-C112
5-2. PRINTED WIRING BOARDS • Refer to page 10 for Common Note on Printed Wiring Boards.
1 2 3
A
MAIN BOARD
AM
FERRITE-ROD
ANTENNA
B
C
L1
FM RF
C1
C2
C3
CV1 TUNING
D
CT3 CT5
CT6
CT4
E
C6
S1
C32
C31
F
S1
BAND
L3
AM OSC
S108
SLEEP
JC1
G
C9
R4
R6
Q1
C12
H
R10
RV1
R5
VOLUME
RV1
D111
C118
I
C119
D112
J
4 5 6
L4
BPF1 CF2
CF1
T1
C15
C33
15 R15 C18 16
S101 (Function Selector)
R8
L2
FM OSC IC1
BUZZER RADIO
ALARM
C23
C21
C24
C16
CF3
R2
1 30
R11
M
S103
S105
ALARM
C116 R133
JW102
15 28
IC101
14 1
R135
JC103
R137
17
LED101 LED DISPLAY (12H)
7 8 9
D1
LEAD WIRE
D2
GRY
3 1 BLK
RED
JC105
-2
-1
JW101
Q301
RADIO ON OFF
C25
C22
JW3
RED
C29
R305
WHT
JW4
JW6
RED
WHT
S104
D114
TIME SET
CLOCK
S106
H
CN1
JW103
4
C304
S111
JW300
SNOOZE/
SLEEP OFF
JW301
R303
1
R101
12 12
10 11 12
FM
ANTENNA
BATTERY
DRY BATTERY
SNAP
"006P" 9V
(IEC DESIGNATION 6F22)
KEEP THE CORRECT
TIME DURING POWER
STOPPAGE
<BACK UP>
SWITCH BOARD
S100
ALARM
VOL
RED
1
LOW HIGH
3
11
1-686-757- (11)
SP1
(SPEAKER)
TRANSFORMER BOARD
1
1
11
1-686-755- (11)
13 14
• Semiconductor
Location
Ref. No. Location
D1 B-8
D2 B-8
D111 I-3
D112 I-3
D114 G-7
D301 H-9
D302 I-8
D304 D-9
IC1 D-5
IC101 H-5
LED101 I-6
Q1 H-2
Q301 D-8
Q302 E-8
4
T301
POWER TRANSFORMER
11
1-686-756-
(11)
~ AC IN