Printed Wiring Board - Sony SRF-18 Service Manual

3-1.

PRINTED WIRING BOARD

•
1
A
-2 -1
S501
POWER
RADIO
S501
AUDIO IN
r
B
OFF
-3 -4
J401
AUDIO IN
C
CT101
-4 -2 -4
D
-3 -1 -3
SRF-18
: Uses unleaded solder.
2 3
ANT1
FM TELESCOPIC
ANTENNA
L105
AM FERRITE-ROD
ANTENNA
MAIN BOARD
D102
W101
A/K
TUNE
D101
-2
A K
-1
C251
L103
C108
R131
-4
-3
-4 CT101
CV101
TUNING
-3
R401
Q431
B C E
NATURAL
R431
R432 +
R251
C401
R454
B C E
JW101
Q451
R451
C453
JW503 B C E
R452 Q251
R231
B
C231
Q231
TH501
D501
TP
(BATT-)
CV101
-2
-1
4 5
L101
C104
L102
R103
+
TP
C136
C103 (FM IN)
C105
JW107 JW108
C102
C111
TP
-2
TP
R104 (VCO)
FM 2ND
OSC C110
30 16
BPF101
IC101
-1
C135
JC101
C129
C139
R331
R109 C133
C123
1 TP
BLK L106
15
(GND)
C134 C124 C120
TP C132
C126
(DET)
C255 R253
RED
+
C232
C125
R201
+
C E
+
C235
C128
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION LR6)
2PCS. 3V
9 9
6 7
S101
AM FM
-1
L104
-2
R351
-1
-2
S101
R301
R106
R204
+
C257
16
+
9
IC201
+
C259
W201
W203
ORG
+
RED
C239
1 8
+
L201
+
W501
R235
TP C209
(BATT+)
BRN
BLU
(L-ch) (R-ch)
SP1
CABINET (FRONT)
SUB ASSY
SRF-18
8 9
3
2
1
RV201
VOL
R352
R353
Q351 J301
B C E AUDIO OUT
C331
R333
JW304
Q331
B C E
C333
R255
J201
i
W202 W204
12
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1-885-271-