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
45
45
HCD-GX355/GX555/RG270/RG475/RG575
6-24. PRINTED WIRING BOARD – PANEL Section (1/2) –
JW603
CN603
S635
S636
S637
S638
S623
S624
S625
S626
S660
SW601
R678
R674
R675
R676
R677
R688
R687
R686
VOL BOARD
x
X
B
M
m
l
– EQ + L
– TUNING +
1-865-471-
11
(11)
ALBUM +
ALBUM –
PANEL BOARD
CN602
P
1
1
3
5
EQ BAND
MASTER
VOLUME
VOLUME
ROTARY ENCODER
S623 – 626,
S635 – 638
1
2
3
4
5
6
7
A
B
C
D
E
F
G
1
2
3
4
5
6
7
A
B
C
D
E
F
G
(Page 44)
: Uses unleaded solder.
•
See page 25 for Circuit Boards Location.
HCD-GX355/GX555/RG270/RG475/RG575
46
46
HCD-GX355/GX555/RG270/RG475/RG575
6-25. SCHEMATIC DIAGRAM – PANEL Section (1/2) –
•
See page 60 for IC Pin Function Description.
R627
R628
C625
R706
R707
R703
C701
C703
C704
R702
R704
R701
R609
D605
D602
R620
R619
C631
IC610
R621
R623
R622
R625
C712
C711
C710
R633
R639
C708
C709
C707
R705
R708
R709
C702
R612
R605
R602
R615
X701
CN601
FL701
C622
IC701
R616
R606
R614
R604
R613
R603
R611
R601
D603
D604
D606
R631
R635
R637
R641
R629
Q608
Q606
Q604
Q603
Q601
D608
C621
Q605
D611
Q602
D601
R608
R618
R607
22
22
22 50V
1k
1k
100
0.1
0.1
1000p
1k
0
0
100
SLR325VC
SLR325VC
47
100
47
10V
RPM7240-H18
22k
4.7k
22k
4.7k
22 50V
0.01
0.1
10k
10k
0.01
47
10V
4700p
2.2k
1k
1k
47
10V
1k
1k
1k
1k
4.19M
19P
2.2
50V
50V
-8BT-A
µPD780232GC-508
1k
1k
1k
1k
1k
1k
1k
1k
SLR325VC
SLR325VC
SLR325VC
10k
10k
10k
10k
10k
2SC3052
2SC3052
2SC3052
2SC3052
2SC3052
SLR325MC
2.2
50V
50V
2SC3052
SELU5223C
2SC3052
SLR325VC
820
820
1k
A1
A2
A
3
A4
A5
A
6
A7
A
8
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
RMS
V-A
V-B
K0
RMS
VDI
VDO
VCL
VCE
RST
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G13
ST1
ST2
ST3
ST4
ST5
ST6
RST
VCL
VCE
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G13
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
SW
VDO
VDI
ST2
ST5
ST1
ST3
ST4
ST6
SW
R
E
SE
T
V
S
S1
VD
D
1
X1
X2
SC
K1
S
I1
SO
1
KEY1
K
EY2
KEY3
KEY4
VSS0
AVDD
VDD0
STREAM LED2
STREAM LED1
STREAM LED3
STREAM LED4
STREAM LED5
STREAM LED6
NC
NC
NC
NC
NC
NC
NC
N
C
NC
N
C
N
C
S
1
S2
S3
S
4
S
5
S
6
S7
S8
S
9
S10
S11
S12
S13
S14
S15
V
D
D
2
VL
O
D
S16
S17
S18
S19
S20
S21
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G13
N
C
N
C
N
C
NC
N
C
N
C
NC
CE
SW LED
IC
NC
AV
S
S
N
P
N
P
N
P
F1
F2
N
X
N
C
N
C
N
C
NX
N
P
-VFL
VF1
VF2
STBY-LED
VOL-A
VOL-B
SIRCS
VFD-DO
VFD-DI
VFD-CLK
VFD-CE
D-GND
9V
KEY0
M-GND
VDD(SWITCHED)
VDD(EVER)
RESET
D-GND
(1/2)
STANDBY
(GX555/RG474/RG575)
D601-606
(STREAM)
REMOTE CONTROL RECEIVER
FLUORESCENT INDICATOR TUBE
FL/LED DRIVER
Q601-608
LED DRIVE
SUB WOOFER
(Page 33)
(Page 47)
HCD-GX355/GX555/RG270/RG475/RG575
47
47
HCD-GX355/GX555/RG270/RG475/RG575
6-26. SCHEMATIC DIAGRAM – PANEL Section (2/2) –
R651
R652
R681
R680
CN603
CN602
R678
R677
R676
R675
R674
R688
R687
R686
R696
R695
R694
R693
R692
R682
R683
R684
R672
R673
R667
R666
R665
R664
R663
R662
R660
R661
R670
R671
R646
R645
R647
R648
R697
R698
S660
R685
R650
R690
R691
S613
S612
S611
S614
S615
S616
S617
S601
S602
S621
S622
S648
S647
S646
S645
S644
S643
S642
S641
S631
S632
S633
S634
S623
S624
S625
S626
S635
S636
S637
S638
SW601
47k
2.2k
47k
22k
5P
5P
47k
22k
10k
4.7k
4.7k
47k
22k
10k
10k
4.7k
4.7k
2.2k
2.2k
2.2k
2.2k
4.7k
2.2k
2.2k
22k
10k
4.7k
4.7k
2.2k
2.2k
22k
47k
22k
47k
47k
22k
10
10
22k
47k
4.7k
22k
22k
47k
A1
A2
A4
A5
A6
A7
A8
A3
V-A
V-B
K0
VOL-A
VOL-B
D-GND
KEY2
KEY3
VOL-A
VOL-B
D-GND
KEY2
KEY3
(2/2)
DISPLAY
CD SYNC
/START
REC PAUSE
AUDIO IN
TAPE
A/B
TUNER
BAND
CD
ILLUMINATION
PRESET
EQ
GROOVE
ENTER
SURROUND
EFFECT
ON/OFF
TUNING MODE
PLAY MODE/
(CD)
DISC SKIP/
DISC 3
DISC 2
DISC 1
ON/OFF
MULTI
PLEX
(MX)
RG475/RG575
GX555/RG270:MX/
MASTER VOLUME
ALBUM -
ALBUM +
EQ BAND
- EQ +
- TUNING +
P FILE
EX-CHANGE
SUB WOOFER
RG575
GX555/RG475/
(Page 46)
HCD-GX355/GX555/RG270/RG475/RG575
48
48
HCD-GX355/GX555/RG270/RG475/RG575
6-27. PRINTED WIRING BOARDS – TRANS Section –
W901
F904
F905
F906
F907
JW929
JW900
JW926
JW930
C909
C910
CN907
D908
R908
C911
CN906
C908
JW917
C907
CN905
Q902
D906
R903
R904
TRANSFORMER BOARD
1-866-062-
(CHASSIS)
M
POWER BOARD
CN442
1
3
K
MAIN BOARD
CN001
1
10
1
3
CN902
S901
JW901
JW904
JW925
JW905
JW902
JW903
JW906
JW910
CN903
PT902
SUB POWER
TRANSFORMER
JW924
JW918
D903
D905
D902
D904
RY901
CN901
D901
R913
R911
R912
R910
SUB TRANS BOARD
1-865-474-
11, 21
(11, 21)
(E2, E3, E51, EA, SP)
(E2, E3, E51, EA, SP)
(E2, E3, E51, EA, SP)
EXCEPT
E2, E3, E51, EA, SP
VOLTAGE
SELECTOR
120VT220Vt 240V
E2, E3, E51,
EA, MX, SP
US, CND, AEP, UK,
EE, RU, AR, AUS
EXCEPT
E2, E3, E51, EA, SP
1
4
1
3
W001
(AC IN)
W902
JW908
JW907
JW912
JW909
R902
CN904
AC1 BOARD
1-865-473-
PT901
MAIN POWER
TRANSFORMER
(AUS)
(AEP, UK, EE, RU, AR)
(E2, E3, E51, EA, SP)
US, CND, E2, E3,
E51, EA, MX, SP
(US, CND)
(CHASSIS)
∗
∗
NOT REPLACEABLE:
BUILT IN TRANSFORMER
1
4
A
B
C
D
E
F
G
H
I
1
2
3
4
5
6
7
8
9
(MX)
1
2
11, 21
(11, 21)
11, 21
(11, 21)
(Page 36)
(Page 32)
: Uses unleaded solder.
•
See page 25 for Circuit Boards Location.
•
Semiconductor
Location
Location
Ref. No. Location
D901
C-6
D902
B-6
D903
B-6
D904
B-6
D905
B-6
D906
E-8
D908
E-6
Q902
E-7
Ver. 1.1
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