Schematic Diagram - Main Section (2/3) - Sony HCD-GX450 Service Manual

HCD-GX450
4-11. SCHEMATIC DIAGRAM – MAIN SECTION (2/3) –
(2/3)
C140
CN065 0
5P
GND
R104 R148 C148
22k 100k 470p
AUDIO IN-R
E
GND
R103 R147 C147 C139
22k 100k 470p 0
GAME JACK AUDIO IN-L
AUDIO CTL
(SUPPLEMENT-2:Page 31)
CN201
3P C208
1000p
R
L
Q209
C207
2SC3052EF
1000p
HP1 PB MUTING
(PB)
(DECK-A)
R239
1k
R235
2.2k
HRPE1
CN203
(REC/PB/ERASE)
8P
C210
(DECK-B)
1000p
R
C209
1000p
L
C212
0.0047
C211
0.01
C205
1000p
R244
22k
CN061
5P
HP CTL
C
D GND
R-OUT
H/P JACK
HP-GND
BOARD
L-OUT
CN701
(SUPPLEMENT-2: C063 C064
0.1 1000p
Page 31)
EP061
(CHASSIS)
HCD-GX450
• See page 40 for Waveform. • See page 43 for IC Block Diagram.
1
(SUPPLEMENT-2:Page 27)
I-MIC
R070
10k
C180
10
50V
C174
2200p
I-HP/AUDIO
C173
2200p
R173
2.2k
C179
C229
10
4.7 Q207 R171
50V
50V 2SC3052EF Q205-208 470
Q208
2SC3052EF REC MUTING
R240
C181
1k
C182
C183
C184
Q210
2SC3052EF Q203
Q205
2SA1235TP
PB MUTING 2SC3052EF
R238
INVERTER
R237 2.2k
Q206
2.2k
2SC3052EF
R184
220k
R234 R236
10k 10k C198
220p
C202
L201 2.2
BIAS OSC 50V
5
R206 10k
R190
2.2k
R204 47k Q231,232
REC BIAS SWITCH
R192
Q232
4.7k
C224 KTA1271Y-AT
0.0047
Q201
2SC2001TP R233
10k
BIAS OSC
C223
0.01 R207 R208
22k 4.7k R232
10k
C213
0.01
C222
47 C214 C225 R212 C206
16V 0.0047 0.0047 10 1000p
Q231
RT1N431C
-TP-1
R174 C176 C178
2.2k 0.01 220p
R172 R170 R168 R164 R166
470 100k 220k 10k 4.7k
C104 C103
1000p 1000p
C102 C101
1 1
50V 50V
CD L
CD R
C171 0.1 50V
C175 C177
TAPE L
0.01 220p
C172 0.1 50V
TAPE R
R167 R163
PBNF2
220k 10k
R169 PB OUT2
R165
100k R162 2.2k
4.7k
PB OUT1
R161 2.2k
PBNF1
1 50V R175 1k
TAPE A1
1 50V R176 1k
TAPE A2
1 50V R177 1k
TAPE B1
1 50V R178 1k
TAPE B2
RECNF2
REC OUT2
REC OUT1
R182 R180
RECNF1
100k 470k
R183 R181 R179
220k 100k 470k
C194 C192
220p 0.01
C191
0.01
R186 C197 C193
47k 220p 220p
C201
R188 R189 R185
2.2
100k 2.2k 47k
50V
R187
100k
C200
C199
10 R191
10
50V 4.7k
50V
28 28
C114
R107
1
1k
50V
C120
C116 0.47
1 C117
50V R117 1000p
10k
R120
4.7k
C126 0.01
MNF2
C124 0.01
R119
MOUT2
4.7k
C123 0.01
MOUT1
C125 0.01
C129
MNF1
10 50V
BNF1
C127 0.1 R121
BOUT1 4.7k
INPUT SELECT,TONE CONTROL,
C130
ELECTRICAL VOLUME BOUT2 R122
10 50V
C128 0.1 4.7k
IC101
BNF2
BD3401KS2
C131 0.1 50V
AMS OUT
R130
TONE OUT2 C137
0
10
VIN2 50V
TONE OUT1 C136
10
C145
VIN1 50V
0.1
BBIN1
BBNF1
VOL C141 R135 C143
OUT1 47p 1k 0.1
R133
2.2k
R132 R131
220k 220k
R141 R139
R142
220k 22k
220k
C142
47p
R140
R136
22k
1k Q142
2SC3052EF
R144
R143
C144 R138 47k
R134 47k
0.1 47k
2.2k
C149 R146
47 1M
R153 C151 16V
C160
22k 0.1 Q141,142
100
16V FEED BACK SWITCH
R154
10k
C156
C155
100
47
16V
16V
R160
10
Q111,112
BAND-PASS FILTER
R108 Q112 R116
22k 2SC3052EF 100
R109 R113
4.7k 4.7k C118
2.2
50V
R111
A3
3
100k
A4
C119
2.2
50V
(SUPPLEMENT-2:
Page 27)
Q111
2SC3052EF
R110 C111
R112
47k 22
470
50V
R114
2.2k
D121
MC2840
D122
MC2840
R128
10k
C1
C2
C132 C133 R129
C3
0.47 0.47 100k
50V 50V
C4
C5
R247
2.2k
C6
R248
2.2k
R137
47k
Q141
2SC3052EF
C7
R145
(SUPPLEMENT-2:
47k
Page 29)
C8
C9
C10
C11
C12
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