Read Sony ICF-C492 Service Manual online
ICF-C492
10
10
ICF-C492
•
Semiconductor
Location
Location
Ref. No. Location
D1
F-9
D2
F-9
D101
D-7
D105
C-1
D106
D-3
D107
D-3
D109
C-5
D302
F-6
D303
F-6
D305
E-8
IC1
E-11
IC101
C-8
Q1
C-13
Q2
F-8
Q101
D-6
Q102
D-6
Q103
E-8
Q106
C-2
Q301
E-9
5-1. PRINTED WIRING BOARD – MAIN Board –
: Uses unleaded solder.
+
FAST
–
ALARM TIME/CLOCK SET
JC302
R129
C119
C118
C107
C117
C106
R115
R120
R136
R101
C116
R104
C114
R128
C110
R111
R157
R14
R113
R301
R127
R306
R307
C108
C303
C304
R118
C105
R114
C104
R112
C145
C103
C123
C24
C20
C19
C14
C16
C115
C4
C8
C31
C3
C12
C1
C6
C7
R7
R8
R4
R9
R116
R15
R5
R6
R13
R12
R3
C11
C29
C32
C25
R10
R117
R119
R121
R123
R126
JC102
JC101
JC2
JC103
E C B
Q101
Q102
B C E
JC108
C112
JC105
R109
C113
R130
R106
R107
R135
Q106
B C E
E C B
Q103
E C B
Q301
Q1
B C E
MAIN BOARD
1-865-186-
(11)
11
1
18
S105
JC1
SNOOZE
S109
–
S103
S104
RV2
D106
D109
D107
JW112
JW124
JW102
JW117
JW106
JW115
JW107
JW100
JW111
(KR)
JW101
JW110
JW113
S102
BLIGHTNESS
C27
C302
JW109
JW119
JW105
JW123
JW2
JW1
JW3
JW108
JW114
D105
JW118
D101
D303
D302
D305
D2
D1
1
4
C21
C17
C18
C22
C111
C26
C13
IC101
L102
L101
R304
R305
PS301
IC1
1
15
30
16
CN302
1
2
8
9
CN102
CF2
CF1
CF3
CN2
L4
AM OSC
L3
FM OSC
L2
FM RF
Q2
T1
AM IF
C301
RV1
1
28
14
15
+
(SP)
+
+
+
+
+
+
+
+
W1
FM LEAD
ANTENNA
+
–2
–1
HOLD T RADIO T BUZZER T CLOCK
D100
LED DISPLAY UNIT
CN107
(SHIELD PLATE)
FM
r
AM
1
2
FAST
–
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
C
POWER
BOARD
B
BUZZER
BOARD
4
1
A
KEY
BOARD
TP (FM ANT)
BLK
RED
NATURAL
L1
AM FERRITE-ROD ANTENNA
CV1
TUNE
S1
BAND
VOL
CT1-1
CV1-1
CT1-4
CV1-4
CT1-3
CV1-3
CT1-2
CV1-2
SP1
–
+
1
2
TIME SET
Ver. 1.2
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