Read Sony SRF-18 Service Manual online
SRF-18
SRF-18
9
9
3-1. PRINTED WIRING BOARD
•
: Uses unleaded solder.
+
+
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+
+
+
+
+
+
+
C251
R131
R151
R401
J201
R434
C433
R435
C455
C435
R431
R432
R432
C431
R455
R456
C451
C453
R451
R452
R452
JC501
R436
C402
R454
R251
D501
R231
C231
R252
R232
C252
R233
C235
C232
R253
C255
C134
C124
C123
C139
R108
C142
R109
JC101
JC102
C120
C126
R107
C106
C108
L103
C103
C102
BPF101
C105
C111
R104
C110
R103
C136
C136
R102
R201
C202
C201
C127
R105
C132
C133
C129
C109
C1
13
IC101
C135
R351
L104
R331
R106
C1
16
C1
17
C1
14
C1
15
C1
12
C204
C237
W501
IC201
C238
C258
C207
C205
R204
S101
R202
R203
C257
R301
R234
R254
R235
R255
R205
C302
C351
R355
C353
R352
R353
R353
R302
R332
R354
R333
C331
R334
C333
R335
TH501
D101
Q431
Q451
Q251
Q231
Q331
Q351
JW1
12
JW202
JW502
JW501
JW101
JW503
L106
L101
JW106
JW108
JW107
L102
C125
C128
C401
JW102
JW103
C104
JW109
JW1
10
JW
111
C209
C203
JW105
JW104
JW303
JW302
JW301
JW201
R101
SL101
C259
C239
C206
L201
JW304
C301
W201
W203
RV201
S501
J401
J301
CT101
CV101
CV101
D102
W101
W202 W204
1-885-271-
12
(12)
MAIN BOARD
A
A/K
K
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
AM
FM
-1
-1
-2
-2
r
S101
3
2
1
VOL
-1
-1
-4
-2
-3
-1
-2
-4
-3
-2
-4
-3
POWER
AUDIO IN
OFF
RADIO
S501
r
r
1
15
16
30
16
1
8
9
AUDIO IN
AUDIO OUT
TUNING
TP
(VCO)
TP
(GND)
TP
(BATT-)
TP
(BATT+)
TP
TP
(DET)
TP
(FM IN)
FM 2ND
OSC
TUNE
NATURAL
BLK
RED
DRY BATTERY
SIZE “AA”
(IEC DESIGNATION LR6)
2PCS. 3V
ANT1
FM TELESCOPIC
ANTENNA
L105
AM FERRITE-ROD
ANTENNA
BRN
RED
i
(L-ch)
SP1
CABINET (FRONT)
SUB ASSY
(R-ch)
BRN
BLU
ORG
RED
CT101
-2
-4
-1
-3
CV101
-2
-4
-1
-3
A
B
C
D
1
2
3
4
5
6
7
8
9
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