Schematic Diagram - Main Section (4/4) - Sony ICF-CD523 Service Manual

6-6. SCHEMATIC DIAGRAM – MAIN Section (4/4) –
(4/4)
Q101
2SC2412K
LINE AMP
(FOR TUNER)
6
7
8
Q102
2SC2412K
(Page 20)
LINE AMP
101
(FOR CD)
Q201
2SC2412K
LINE AMP
(FOR TUNER)
Q202
102
2SC2412K
LINE AMP
(FOR CD)
103
104
C307
100p
R202 R102
10k 10k
(Page 22)
JC553 JC554
0 0
105
106
107
108
Q902
2SD2396K
+6V
REGULATOR
C919
C921 220
0.01 10V
ICF-CD523
• See page 26 for IC Block Diagrams.
C103 C104
0.047 0.047
R107
1.5k
R108 C105
33k 0.22
R110
Q103 R111
680k
2SC2412K 10k
R113 AGC
1k
C304
R106 C359 C108 R109 C106
1k 0.47 1000p 150k 100p
6.3V
C208
R206 C206
R355 1000p R209 R211
1k 100p
1M 150k 10k
R213
1k Q203 R208 C205 R207
2SC2412K 33k 0.22 1.5k
AGC
R210
680k
C203 C204
0.047 0.047
Q302
DTA124EKA
MUTING
CONTROL
SWITCH
R307 C305 R308
2.2k 4.7 100k
D303
50V
DAP202K
C223 C222
100p 100p
C123
100p
C122
100p
R254
3.3k
R154
3.3k
R251 R151 C151
3.3k 3.3k 0.01
C251
0.01
C152
4.7
C224 C124 R105
50V
4700p 4700p 2.2k
R253 C252 R205
270k 4.7 2.2k
50V
C351
0.01
C352
0.022
R354 47k R351 4.7k
C367 C362 R352
100p 100p 10k
R907 R904
1 1
D902
1SS119
R915
1k
R920 R919 R916
Q901
1k 1k 1k
2SD2396K
+5V
REGULATOR
JC902 JC901
0 0
R909
100
D909
D910 C915 C913
C918 MTZJ-T C914
MTZJ-T 220 6800
0.01 -77-5.6A 0.01
-77-6.8A 10V 16V
(Page 21)
IC301(1/2)
BA4558F
C119
JC101 4.7
0 50V
R127 R112
47k 4.7k
MEGABASS AMP C303
R305 47
10k 10V
R306
47
10k
R227
47k
C219
JC201 4.7
GND
0 50V
VCC
IC301(2/2) R212
BA4558F 4.7k
C102
1500p
R114
1k
Q104
2SD1757K
C109
MUTING
1000p
C209
1000p
Q204
2SD1757K
R214 CN303 W301
MUTING
1k 7P 7P
BASS BASS
+5V +5V
L IN L IN
C202
1500p
R IN R IN
R OUT R OUT
GND GND
L OUT L OUT
POWER AMP
IC351
LA4629
R117 R116
470k 1k
C111
C255
1
C155 1000
1000 10V
10V
C357
1000p
C356 CN301
10 4P
50V C363
RCH
100p
GND
C366
100p
GND
LCH
D351 R353 R156 R256
1SS119 1k 33k 33k
C953
100p
C909
C902 0.01 R901 100
10
50V
D901 1SS119
C901 0.01
D903 1SS119
R902 D904 1SS119
100k
C905 0.01
D905 IN4002B
D906 IN4002B
C906 0.01
KH901 CN901
C907 0.01
2P 2P
L901
D907 IN4002B AC
D908 IN4002B AC
C908 0.01 L902
R903
100k
23 23
S301
MEGA BASS
R309
ON OFF
10k
C306
0.1
R131
0
R231
R229 0
4.7k
R129 4.7k C212
2.2
C112 R228
2.2 100
Q105 Q205
2SC2412K-S 2SC2412K-S
LINE AMP LINE AMP
R217
470k
C110 C210 R216
1000p 1000p 1k
C211
1
RV301
20k -2
-1
RV301
VOLUME
SP101
(R-CH FRONT SPEAKER)
SP201
(L-CH FRONT SPEAKER)
T901
(AEP)
POWER
TM902
TRANSFORMER
(US,CND)
(AC IN)
TM901
(AEP)
ICF-CD523
Ver. 1.1