HCD-GX355/GX555/RG270/RG475/RG575
Ver. 1.1
6-13. SCHEMATIC DIAGRAM – MAIN Board (2/3) –
(2/3)
(E2,E51,MX,AR)
(Page 41)
CN066
4P
R069
22k
MIC CTL
MIC 9V
JW164
R068
10
MIC SIG
MIC GND
CN065
(Page 41)
5P
GND
R104
R148
C148
1k
100k
470p
AUDIO IN-R
GND
R103
R147 C147
1k
100k 470p
AUDIO IN-L
AUDIO CTL
CN201
3P
C208
1000p
R
L
C207
1000p
HP1
(PB)
(DECK-A)
HRPE1
CN203
(REC/PB/ERASE)
8P
C210
(DECK-B)
1000p
R
C209
1000p
L
C220
AEP,UK,
22p
EE,RU
C205
1000p
R244
22k
CN061
(Page 41)
5P
HP CTL
D GND
R-OUT
HP-GND
L-OUT
EP061
(CHASSIS)
HCD-GX355/GX555/RG270/RG475/RG575
• See page 50 for Waveforms. • See page 50 for IC Block Diagrams.
(Page 33)
I-MIC
R070
C140
10k
0.1
R150
47k
C139
R149
0.1
47k
I-HP/AUDIO
Q209
C179
C229
2SC3052
4.7
Q207
50V
PB MUTING
50V
2SC3052
Q205-208
Q208
2SC3052
REC MUTING
R240
1k
R239
1k
Q210
2SC3052
Q203
Q205
R235
2SA1235
PB MUTING
2SC3052
2.2k
R238
INVERTER
R237
2.2k
Q206
2.2k
2SC3052
R234
R236
10k
10k
L201
BIAS OSC
R206
10k
R204
47k
Q231,232
REC BIAS SWITCH
Q232
C212
C224
KTA1271Y-AT
0.0047
0.0047
Q201
2SC2001
R233
10k
BIAS OSC
C211
C223
0.01
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
C063
C064
0.1
1000p
C065
1000p
(AEP,UK,EE,RU)
C066
1000p
C070
(AEP,UK,EE,RU)
1000p
R174
C176
C178
2.2k
0.01
220p
C180
R172
R170
R168
R164 R166
10
470
100k
220k
10k
4.7k
50V
C104
C103
1000p
1000p
C102
C101
1
1
50V
50V
C174
2200p
CD L
CD R
C173
C171
0.1
50V
2200p
C175
C177
TAPE L
0.01
220p
C172
0.1
50V
TAPE R
R173
R167
R163
PBNF2
2.2k
220k
10k
R169
PB OUT2
R165
10
100k
R162
2.2k
R171
4.7k
PB OUT1
470
R161
2.2k
PBNF1
C181
1 50V
R175
1k
TAPE A1
C182
1 50V
R176
1k
TAPE A2
C183
1 50V
R177
1k
TAPE B1
C184
1 50V
R178
1k
TAPE B2
RECNF2
REC OUT2
REC OUT1
R184
R182
R180
RECNF1
220k
100k
470k
R183
R181
R179
220k
100k
470k
C198
C194
C192
220p
220p
0.01
C191
(AEP,UK,EE,RU)
0.01
C202
R186
C197
C193
2.2
47k
220p
220p
50V
C201
R190
R188
R189
R185
2.2
2.2k
100k
2.2k
47k
50V
R187
100k
C200
C199
R192
10
R191
10
4.7k
50V
4.7k
50V
C159
(AEP,UK,EE,RU)
1000p
C069
(AEP,UK,EE,RU)
1000p
34
34
C114
R107
R108
R106
1
1k
22k
1k
50V
C120
C116
0.47
1
C117
C113
50V
R117
1000p
1
10k
50V
R110
R120
47k
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
Q141
2SC3052
2SC3052
R144
R143
C144
R138
47k
R134
47k
0.1
47k
2.2k
R145
47k
C149
R146
47
1M
R153
C151
16V
C160
22k
0.1
Q141,142
100
16V
FEED BACK SWITCH
R154
10k
C156
C155
100
(AEP,UK,EE,RU)
47
16V
16V
(GX555/RG475/RG575)
R160
10
Q111,112
BAND-PASS FILTER
Q112
R116
2SC3052
100
R109
R113
4.7k
4.7k
C118
2.2
50V
R111
A3
100k
A4
C119
2.2
50V
(Page 33)
Q111
2SC3052
C111
R112
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
C7
(Page 35)
C068
1000p
C8
C9
C10
C11
C12