Sony HCD-GX355 / HCD-GX555 / HCD-RG270 / HCD-RG475 / HCD-RG575 / MHC-GX355 / MHC-GX555 / MHC-RG270 / MHC-RG475S / MHC-RG575S Service Manual ▷ View online
HCD-GX355/GX555/RG270/RG475/RG575
33
33
HCD-GX355/GX555/RG270/RG475/RG575
6-12. SCHEMATIC DIAGRAM – MAIN Board (1/3) –
•
See page 50 for Waveforms.
•
See page 60 for IC Pin Function Description.
D923
D943
R904
R913
R
9
1
5
R920
R921
R922
R925
R927
R928
R
9
2
9
R
9
3
1
R938
R939
R950
R
9
5
2
R
9
5
4
R
9
7
0
R
9
7
9
R
9
8
0
R
9
9
2
R
9
9
3
R999
R998
R997
R996
CN991
CN341
R365
R363
R367
R361
R369
R359 R357
R355
R370
R366 R364
R368
R360 R358
R356
Q342
Q344
Q346
R341
R343
R344
R342
R345
R346
R354
R353
R352
R351
R350
R349
R348
R347
C
9
2
4
R958
R953
R
9
6
8
R
9
6
7
R
9
6
5
R
9
6
3
R
9
6
1
R
95
9
Q345
D341
R362
R245
R936
R924
R923
R981
R982
C928
C918
C923
C925
R
9
3
7
C919
C912
C927
C914
X902
R
9
3
5
C
9
1
0
R926
R957
R956
R955
R940
R910
R909
R908
R907
D
9
1
0
C908
C909
IC902
R905
D902
C902
D903
C906
R912
D901
R903
R901
R941
R942
R943
C921
R947
R944
R949
R948
D947
R951
R945
D921
D905
Q903
Q341
C922
C901
IC901
R977
R976
R975
R974
R973
R972
R971
R
9
1
9
R914
C916
C970
C917
R902
R946
R1977
R1976
R1974
R1973
R1972
R1971
C911
R969
R911
R
9
1
8
C904
Q902
R932
Q901
Q343
Q904
Q933
X901
MC2840
MC2838
1k
1k
1
0
0
100
1M
220k
100
100
100
1
0
0
1
0
k
10k
100
4.7k
1
0
0
1
0
0
1
k
1
0
0
1
0
0
1
k
1
k
100
100
100
100
19P
13P
10k
1k
22k
22k
22k
10k
1k
22k
22k
10k
1k
22k
10k
1k
22k
KTA1273
-Y-AT
KTA1271Y
-AT
KTA1271Y
-AT
10k
10k
1k
1k
10k
1k
4.7k
4.7k
4.7k
47k
4.7k
4.7k
47k
4.7k
0
.1
10k
10k
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
RT1N431C
-TP-1
MC2836
22k
10k
22k
100
100
100
100
1000p
1000p
0.1
0.1
1
0
0
k
0.1
220p
22p
22p
16MHz
1
0
k
0
.1
100
100
100
100
10k
10k
22k
47k
47k
1
S
S
3
5
5
T
E
-1
7
0.1
0.1
PST3429UL
10k
MC2836
10
50V
1SS355TE
-17
10
50V
1k
UDZSTE
-174.7B
10k
100k
2.2k
10k
4.7k
2.2
50V
50V
220k
220k
10k
2.2k
1SS355TE
-17
220
220
MC2840
1SS355TE-17
KTA1271Y-AT
RT1N431C
-TP-1
4.7
50V
50V
100
16V
16V
M30302MCP
-A02FPU0
10k
10k
10k
10k
10k
10k
10k
0
100
1000
6.3V
6.3V
1000p
0.1
0
0
10k
10k
10k
10k
10k
10k
1000p
100
100
2
2
0
k
0.1
2SC3052
2.2k
2SC3052
RT1N431C
-TP-1
2SC3052
RT1N431C
-TP-1
32.768KHz
A
1
A
2
B2
B3
B5
B6
B7
B4
A3
A4
VDI
VDO
VCE
VCL
V-B
V-A
KEY
RMC
V-2
V-1
VRE
T-ST
T-MU
T-SD
T-CE
T-DO
T-CL
T-DI
C-OS
C-SE
C-TF
G-1
G-2
G-3
G-4
G-5
G-6
STK-M
SYS-M
VDO
STBY
I-HP/AUDIO
I-MIC
D1
D2
D3
D4
D5
D6
D7
D1
D2
D5
D3
D4
STBY
O-RP
O-BI
TA-AMS
V-1
V-2
KEY
M-DA
M-CL
VRE
VCE
V-A
RMC
V-B
ACP
PROTECT
PROTECT
KEY
C-E1
C-E2
C-E3
C-7
R-C
C-11
C-3
C-6
C-5
VCL
VDI
D7
D6
VF1
VF2
VFL-
O-SWR
P-RELAY
FSP
C-12
C-TR
C-LF
C-LR
C-2
C-4
C-10
C-14
C-15
C-13
C-9
C-8
C-1
R-D
G-3
I-STREAM
I-VACS
I-TAPE-AMS
I-PROTECTOR
O-VFD-DATA
I-VFD-DATA
O-VFD-CLK
O
-FRON
T-SP
-RELAY
O-MP3-LP
O-MP3-CS
O-MP3-RESET
O-XLT
O-XRST
O-XTCN
O
-CD
G-R
ST
O-C
DG-M
UTE-DATA
I-OP
EN-S
W
I-CD
-N
UM
BER
-SEN
S
I-E-3
I-E-2
I-E-1
O-TM-F
O-TM-R
O-LM-F
O-LM-R
D-GND
REC(REW)
B-SOL
B-MODE
B-HALF
B-PHOTO
REC(FWD)
CAPM+
A-HALF
A-PHOTO
A-SOL
A-MODE
M-GND
O-P
O
WE
R-R
ELAY
I-SCOR
O-MOTOR
O-A-SOL
O-B-SOL
I-SIR
CS-IN
I-R
ESET
I-MIC
O-SYS-M
UTE
I-AC
-PULSE
I-AC-CU
T
M-GND
I-MP3-REQ
O-MP3-STB
O-VFD-R
ESET
O-S
TK-M
UTE
O
-SW
R
O-CDG
-BG
C
I-CD
G-DET
I-T
UNED
O-S
T-MU
TE
I-STEREO
I-R
DS-DATA
O-LC72121-CE
O-LC72121-D
O
O
-LC72121-CLK
O-V
M
UTE
I-K
EY0
O
-CDG
-PO
W
ER
VSS
VC
C2
xWR
xHOLD
I-MP3-ACK
O-S
TBY-LED
I-VOL-A
I-VO
L-B
N
MI
VC
C1
VS
S
XC
OUT(32.768
KHZ)
XC
IN
(32.768KH
Z)
CN
VSS
BYTE
O
-V
FD
-CE
NC
AVCC
VREF
XO
UT(16M
H
Z)
XIN(16MH
Z)
I-POWER,DISPLAY
AVSS
O-BIAS
O-REC/PB
I-TAPE-B-STAT
I-TAPE-A-STAT
I-REAL-A
I-REAL-B
I-R
DS
-CLK
O-M
P3-CLK
O-CD-CLK
-VFL
VF1
VF2
O
-BD
3401-
D
ATA
O
-BD
3401-
CLK
STBY-LED
VOL-A
VOL-B
KEY
SIRCS
VFD-DO
VFD-DI
VFD-CLK
VFD-CE
D-GND
9V
VDD(SWITCHED)
VFD-RESET
D-GND
-DATA
I-HP/
AUDIO IN
O-MP3
O-CD-DATA
I-CD-SENS
(1/3)
(AEP,UK
,EE)
(AEP,UK,EE,E2,E51,AR)
(US,CND,AEP,UK,EE,RU,E2,E51,AR)
(AEP,UK,EE,RU,EA,MX)
(EXCEPT E3,EA,AUS,SP)
(GX555,RG475)
(US,CND,RU,E3,EA,MX,AUS,SP)
(E3,EA,MX,AUS,SP)
(US,CND,E2,E3,E51,AR,AUS,SP)
(E3,EA,AUS,SP)
(GX555/RG475/RG575)
I-M
P
3
-D
I
TAPE MECHANISM
DECK BLOCK
SUPPLIED WITH
THE ASSEMBLED
BLOCK
(GX355,RG270)
(GX355/RG270/RG575)
(MX)
(AEP,UK,EE)
SYSTEM CONTROLLER
Q903,904
REGULATOR
VOLTAGE
DETECT
INVERTER
RESET
SWITCH
Q341,342
CAPSTAN/REEL MOTOR DRIVE
Q343,344
PLUNGER DRIVE(DECK-B)
Q345,346
PLUNGER DRIVE(DECK-A)
AMP
ON/OFF
VDD(EVER)
I-MODEL7
I-LC7
2121-DI
I-M
OD
EL1
I-M
ODEL2
I-M
ODEL3
I-M
O
DEL4
I-M
O
DEL5
I-M
OD
EL6
(Page 46)
(Page 34)
(Page 35)
(Page 34)
Ver. 1.1
HCD-GX355/GX555/RG270/RG475/RG575
34
34
HCD-GX355/GX555/RG270/RG475/RG575
6-13. SCHEMATIC DIAGRAM – MAIN Board (2/3) –
•
See page 50 for Waveforms.
•
See page 50 for IC Block Diagrams.
R
15
8
R
203
R204
R
205
R206
R234
R239
C191
C
16
2
C15
3
C
15
2
CN065
CN203
CN061
R103
R148
R147 C147
C148
C140
C139
R150
R149
R068
C208
C207
CN201
C210
C
16
3
C130
C129
C119
R235
R240
Q208
C205
C211
C222
Q232
R233
R212
C223
C225
C180
C174
C173
C179
C198
C192
C182
C183
C181
C184
R175
R176
R177
R178
C202
R184
R182
R192
R190
C194
R186
R188
C200
R180
C201
C197
R191
R189
C193
R183
R179
R185
R187
C199
C104
C102
C103
C101
C171
C172
R181
C158
C
16
1
R
15
6
C155
C160
R
15
7
R
15
9
R160
R154
C151
R153
R
152
R
15
1
C144
C146
R142
C142
R144
C141
R131
R132
R141
R143
R145
C143
C136
C137
C131
C128
C127
C125
C123
C124
C126
R121
R122
R120
R119
C145
R128
D121
R247
R248
C
106
C
105
C
110
C
109
C121
C
122
R117
R107
C116
R116
C118
R108
D122
R110
R111
R113
C120
R070
C064
C063
C149
R146
R140
R138
R134
R133
IC101
C212
Q112
R112
C111
C117
R137
R139
R129
C133
C132
R170
R161
R162
C175
R169
R167
R165
R163
C177
R173
R168
R171
R174
C176
R164 R166
C178
R172
R069
CN066
R244
C209
C220
C065
C066
C
1
87
C1
88
C1
89
C1
90
C070
R106
C113
C114
C069
C156
R136
R135
Q141
C068
JW164
R104
HP1
HRPE1
EP061
L201
R236
C159
R130
C229
R114
Q111
R109
Q142
Q210
Q209
Q203
R238
Q206
Q207
Q205
R237
R232
Q231
C214
R208
R207
C213
C206
C224
Q201
1
00
47k
47k
10k
10k
10k
1k
0.01
1
00p
0.047
0.022
5P
8P
5P
1k
100k
100k 470p
470p
0.1
0.1
47k
47k
10
1000p
1000p
3P
1000p
22
5
0V
10 50V
10 50V
2.2
50V
50V
2.2k
1k
2SC3052
1000p
0.01
47
16V
KTA1271Y-AT
10k
10
0.01
0.0047
10
50V
2200p
2200p
10
50V
220p
0.01
1 50V
1 50V
1 50V
1 50V
1k
1k
1k
1k
2.2
50V
50V
220k
100k
4.7k
2.2k
220p
47k
100k
10
50V
470k
2.2
50V
50V
220p
4.7k
2.2k
220p
220k
470k
47k
100k
10
50V
1000p
1
50V
1000p
1
50V
0.1
50V
0.1
50V
100k
0.22
1
00p
1
00
47
16V
100
16V
16V
1
00
1
M
10
10k
0.1
22k
10
k
10k
0.1
0.1
220k
47p
47k
47p
220k
220k
220k
47k
47k
0.1
10
50V
10
50V
0.1 50V
0.1
0.1
0.01
0.01
0.01
0.01
4.7k
4.7k
4.7k
4.7k
0.1
10k
MC2840
2.2k
2.2k
1
50V
1
50V
1
50V
1
50V
220
0p
220
0p
10k
1k
1
50V
100
2.2
50V
50V
22k
MC2840
47k
100k
4.7k
0.47
10k
1000p
0.1
47
16V
1M
22k
47k
2.2k
2.2k
BD3401KS2
0.0047
2SC3052
470
22
50V
1000p
47k
22k
100k
0.47
50V
0.47
50V
100k
2.2k
2.2k
0.01
100k
220k
4.7k
10k
220p
2.2k
220k
470
2.2k
0.01
10k
4.7k
220p
470
22k
4P
22k
1000p
22p
1000p
1000p
4
70p
4
70p
4
70p
4
70p
1000p
1k
1
50V
1
50V
1000p
100
16V
16V
1k
1k
2SC3052
1000p
1k
BIAS OSC
10k
1000p
0
4.7
50V
50V
2.2k
2SC3052
4.7k
2SC3052
2SC3052
2SC3052
2SA1235
2.2k
2SC3052
2SC3052
2SC3052
2.2k
10k
RT1N431C
-TP-1
0.0047
4.7k
22k
0.01
1000p
0.0047
2SC2001
A
1
A
2
A3
A4
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
M-CL
M-DA
O-BI
O-RP
I-HP/AUDIO
TUR
TUL
CDL
CDR
I-MIC
TA-AMS
PBNF2
PBNF1
TAPE A1
TAPE A2
TAPE B1
TAPE B2
REC OUT1
REC OUT2
RECNF2
RECNF1
ALC
SC
SI
VDD
GND
VCC
1/2VCC
FILTER
SW OUT
LF4
LF3
LF2
LF1
BBIN2
BBNF2
VOL
BBNF1
BBIN1
VIN1
TONE OUT1
VOL
VIN2
TONE OUT2
AMS OUT
BNF2
BOUT2
BOUT1
BNF1
MNF1
MOUT2
MOUT1
MNF2
TNF2
TNF1
SUR1
SUR2
PB OUT2
PB OUT1
SAOUT2
SAOUT1
CAP
MIC
CD L
CD R
TUNER R
TUNER L
TAPE R
TAPE L
MD L
MD R
GAME L
GAME R
L
R
R
L
HP CTL
D GND
R-OUT
HP-GND
L-OUT
OUT1
OUT2
MIC SIG
MIC GND
MIC 9V
MIC CTL
LINE OUT2 (R)
LINE OUT1 (L)
GND
GND
AUDIO IN-R
AUDIO IN-L
AUDIO CTL
(2/3)
(E2,E51,MX,AR)
AEP,UK,
EE,RU
(AEP,UK,EE,RU)
(AEP,UK,EE,RU)
(AEP,UK,EE,RU)
(E2,E51,MX,AR)
(AEP,UK,EE,RU)
(AEP,UK,EE,RU)
(GX555/RG475/RG575)
(AEP,UK,EE,RU)
(PB)
(REC/PB/ERASE)
(CHASSIS)
Q111,112
BAND-PASS FILTER
Q141,142
FEED BACK SWITCH
ELECTRICAL VOLUME
INPUT SELECT,TONE CONTROL,
Q205-208
REC MUTING
Q231,232
REC BIAS SWITCH
PB MUTING
PB MUTING
(DECK-A)
(DECK-B)
INVERTER
BIAS OSC
(Page 33)
(Page 41)
(Page 41)
(Page 41)
(Page 35)
(Page 33)
Ver. 1.1
HCD-GX355/GX555/RG270/RG475/RG575
35
35
HCD-GX355/GX555/RG270/RG475/RG575
D004
D007
D008
D014
D024
IC006
IC011
R268
C272
R006
Q002
C015
C025
IC021
D006
C007
C016
R001
D022
D012
C011
C005
D002
R060
D031
C026
C027
C028
R032
R037
CN031
CN001
R036
R035
R043
R042
Q042
R045
R046
C043
C041
C042
R254
R252
Q251
C255
C256
C263
C264
R262
R261
IC251
R251
C266
C265
C259
R283
R276
R277
R278
R279
R274
C273
C271
R275
CN041
CN271
R265
D302
CN391
D301
C317
R322
R323
R314
R315
R316
R317
R318
R319
R320
R321
R331
R332
R333
R334
R337
R338
R339
R340
R330
D303
C311
C302
C301
R303
R301
R304
R302
C391
R384
R383
R382
R381
R052
D001
C001
D003
D013
D011
D023
D021
R263
R264
R280
C013
C023
R257
R034
R033
R267
C002
C012
C305
JW040
CN381
C384
CN331
JW033
47
JW031
CN301
R259
R253
C253
C257
C254
C258
R258
C260
R250
D041
R002
R005
R064
R063
R059
Q271
C274
JW184
JW022
JW021
C045
JW190
R047
R050
R049
D035
R048
M001
EP031
JW069
R044
C031
C032
C275
Q274
Q261
Q043
Q041
Q252
Q045
Q044
R007
C044
10EDB40
10EDB40
10EDB40
10EDB40
10EDB40
TA78033LS
TA7809S
4.7k
0.1
4.7k
2SC3052
100
16V
16V
100
16V
16V
TA7809S
1SS355TE
-17
22
50V
1000p
22
10EDB40
10EDB40
0.1
2200
16V
10EDB40
1SS355TE-17
0.01
0.01
0.01
1k
4.7k
13P
11P
4.7k
4.7k
2.2k
10k
KTA1271Y-AT
1k
1k
0.1
47
16V
4.7
50V
50V
2SC3052
22p
22p
47
16V
1000p
10k
10k
BA4558F-E2
4.7
50V
50V
4.7
50V
50V
10 50V
10k
100k
4.7k
10k
2.2k
4.7k
0.22
0.22
47k
3P
3P
100
10EDB40
13P
10EDB40
1000
10V
470
100
100
100
100
470
100
100
100
100
100
100
100
100
100
100
1k
1k
1k
UDZSTE-174.7B
0.1
10 50V
10
50V
10k
1k
10k
1k
0.1
100
100
100
100
470k
10EDB40
0.1
10EDB40
10EDB40
10EDB40
10EDB40
10EDB40
2.2k
2.2k
4.7k
2200
25V
2200
25V
22k
22k
47k
0.1
0.1
1000p
100p
13P
47k
10k
47p
47
16V
47p
47
16V
47k
10 50V
10k
UDZSTE-1713B
0
4.7k
100
100
2SC3052
10
50V
0.1
4.7k
47k
2.2
MC2838
47k
0
1000p
1000p
470p
RT1N431C-TP-1
RT1P141C-TP-1
2SC2001
RT1N431C-TP-1
2SC3052
2SC3052
2SC2001
10k
1000p
B1
B2
B3
B4
B5
B6
B7
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
PROTECT
FSP
P-RELAY
STK-M
SYS-M
ACP
O-SWR
C-LR
C-LF
C-TR
C-TF
C-E1
C-E2
C-E3
C-SE
C-OS
C-1
C-2
C-3
C-4
C-5
C-6
C-7
C-8
C-9
C-10
C-11
C-12
C-13
C-14
C-15
G-1
G-2
G-3
G-4
G-5
G-6
TU-R
TU-L
VFL-
VF1
VF2
T-CL
T-MU
R-C
CDR
CDL
R-D
T-ST
T-SD
T-CE
T-DO
T-DI
∗
∗
∗
∗
*
∗
∗
SCOR
WFCK
SBSO
EXCK
MUTE-DATA
CDG-RST
CDG-DET
CDG-POWER
VM-MUTE
GND
CDG-BGC
GND
VCC
TUNED
TUNER-L
GND
TUNER-R
TU-MUTE
RDS DATA
+3.3V
+9V
STEREO
N.C
LC72121 CLK
LC72121 DO
LC72121 DI
LC72121 CE
RDS CLK
FAN+
FAN-
FAN+
LM-R
LM-F
TM-R
TM-F
TBL ADDRESS SENS
D+3.3V
M+9V
OPEN SW
SP-GND
A-GND
R-OUT
L-OUT
AC3
AC4
AC3
AC4
SP L-OUT
SP R-OUT
-VFL
VF1
VF2
SW OUT
GND
SW ON/OFF
PROTECT
STK MUTE
GND
N.C
E-3
E-2
E-1
NC
M-GND
M-GND
(3/3)
15P(EXCEPT AEP,UK,EE)
11P(AEP,UK,EE)
(AEP,UK,EE)
(AEP,UK,EE,RU)
(MX)
EXCK
SBSO
DGND
D-GND
L-CH
A-GND
R-CH
XTCN
XRST
CD-DATA
XLT
CD-CLK
CD-SENS
SCOR
MP3-GND
MP3-CS
MP3-LP
MP3-DIO
MP3-CLK
MP3-REQ
MP3-ACK
WFCK
MP3-RST
MP3(3.3V)
MP3-STB
M-GND
M-GND
M+7V
*CN301
27P(EXCEPT MX)
(GX355/GX555)
GX355/GX555/
RG270:
AEP,UK,EE,RU/
RG575
GX355/GX555/RG270:
AEP,UK,EE,RU/RG575
GX355/GX555/RG270:E2,E3,E51,
EA,MX,AR,AUS/RG475/RG575
(RG270:AEP,UK,EE,RU)
∗R254,257
(RG270:AEP,UK,EE,RU)
GX355/GX555/RG270:E2,E3,E51,
EA,MX,AR,AUS/RG475/RG575
GX355/GX555/RG270:E2,E3,E51,EA,
MX,AR,AUS/RG475:E3,AUS,SP
RG475:AEP,UK,EE,RU/RG575
RG270:AEP,UK,EE,RU/
470
∗R251,252
(GX555/RG475/RG575)
(FAN)
(AEP,UK,EE,RU)
(CHASSIS)
(EXCEPT MX)
(MX)
10k
22k
∗R059,060
1k 1W
1k 2W
STBY-RELAY
EVER +10V
D-GND
UNREG +16V
PWR GND
AM
ANTENNA
COAXIAL
FN 75
Ω
THE ASSEMBLED
BLOCK
SUPPLIED WITH
FM/AM
TUNER PACK
DVDD(3.3V)
AVDD(3.3V)
31P(MX)
RELAY B+
1k
SUB WOOFER ON/OFF
BUFFER
MUTING
CONTROL
MUTING
MUTING
FAN DETECT
FAN ON/OFF
Q041,042
RELAY
DRIVE
O
I
G
O
I
G
O
I
G
+3.3V REGULATOR
+9V REGULATOR
+9V REGULATOR
BUFFER
REGULATOR
B+ SWITCH
6-14. SCHEMATIC DIAGRAM – MAIN Board (3/3) –
(Page 33)
(Page 43)
(Page 27)
(Page 29)
(Page 31)
(Page 34)
(Page 49)
(Page 37)
(Page 39)
Ver. 1.1
HCD-GX355/GX555/RG270/RG475/RG575
36
36
HCD-GX355/GX555/RG270/RG475/RG575
6-15. PRINTED WIRING BOARD – POWER Board –
1
6
CN442
CN443
C460
C459
JW
422
D401
C406
R452
C405
TH441
C489
C490
JW
449
JW416
JW445
JW
447
JW
459
JW
454
JW462
JW442
JW452
JW457
JW444
JW410
JW466
JW
412
JW408
JW
465
JW439
JW
456
JW
420
JW
460
JW
455
JW464
L441
JW
419
JW403
R495
JW
417
R496
JW461
JW463
JW458
C442
JW443
JW
450
JW438
JW
406
JW440
C452
C454
C451
JW
453
JW
421
JW448
JW
415
JW
414
JW
413
JW446
C447
C488
C441
L442
C448
RY441
C403
CN441
JW409
JW451
EP401
C486
JW
404
C481
JW
418
JW411
JW
407
C453
R
449
JW
467
JW
423
JW
402
JW405
JW
424
JW441
JW
401
R451
C404
C491
R484
C446
R448
R447
JR
441
JR
442
R456
C411
R455
Q488
C445
R483
R480
Q489
C494
C493
D441
R445
R446
R423
R421
R424
C443
R
443
R441
R425
R444
R402
R459
R462
R414
R416
C444
R442
D481
Q441
R411
R415
R457
R
437
R460
R
417
R412
R
407
R
418
R
419
D443
R485
Q481
R465
R481
R466
R497
R461
R422
R454
R453
R413
R490
R440
R499
R498
R
488
R487
R420
R482
R493
R492
R491
D483
R401
Q486
Q487
Q485
Q482
R486
Q483
Q442
Q484
R458
POWER BOARD
1-865-472-
11, 21
(11, 21)
E
E
E
E
E
E
E
E
E
E
E
+
+
–
–
L
R
SPEAKER
IMPEDANCE
USE 6 – 16
Ω
JK441
(AEP, UK, EE, RU)
(CHASSIS)
J
MAIN
BOARD
CN031
1
13
3
1
M
TRANSFORMER
BOARD
CN905
L
SUB WOOFER
BOARD
CN502
(GX555/RG475/RG575)
(AEP, UK, EE, RU)
(AEP, UK, EE, RU)
JW
425
JW
433
(AEP, UK, EE, RU)
A
K
K
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
IC441
(Page 32)
(Page 48)
(Page 38)
: Uses unleaded solder.
•
See page 25 for Circuit Boards Location.
•
Semiconductor
Location
Location
Ref. No. Location
D401
E-3
D441
C-6
D443
B-2
D481
C-5
D483
B-8
IC441
B-6
Q441
C-5
Q442
C-6
Q481
D-8
Q482
D-8
Q483
D-8
Q484
D-8
Q485
C-8
Q486
C-8
Q487
C-8
Q488
C-8
Q489
B-8
Click on the first or last page to see other HCD-GX355 / HCD-GX555 / HCD-RG270 / HCD-RG475 / HCD-RG575 / MHC-GX355 / MHC-GX555 / MHC-RG270 / MHC-RG475S / MHC-RG575S service manuals if exist.