Sony HCD-EC55 / HCD-EC77 / HCD-GX99 / MHC-EC55 / MHC-EC77 / MHC-GX99 Service Manual ▷ View online
41
41
HCD-EC55/EC77/GX99
HCD-EC55/EC77/GX99
7-13. PRINTED WIRING BOARD — HI-AMP BOARD —
•
See page 29 for Circuit Boards Location.
:Uses unleaded solder.
IC101
IC102
MAIN BOARD
CN602
(Page 35)
1-872-062-
12
(12)
HI-AMP BOARD
C
MAIN BOARD
CN603
(Page 35)
L
EC77/GX99
EC55
EC55/EC77 :
AEP,RU,E2,E3,E51,MX
AEP,RU,E2,E3,E51,MX
C153
C152
C151
C120
C119
C116
C115
C110
C118
C109
C106
C105
C104
C103
R168
R167
R166
R165
R162
R161
R160
R159
R156
R155
R129
R128
R127
R126
R125
R124
R123
R122
R121
R120
R119
R112
R111
R110
R109
R108
R107
R106
R105
R104
R103
R102
R101
Q152
Q151
Q101
Q102
D121
D151
D152
E
E
E
E
EC55
JW120
JW119
JW118
JW117
JW116
JW114
JW113
JW112
JW111
JW110
JW101
A001
R152
R151
C113
C111
C108
C107
C102
C101
CN101
EC77:US,CND/GX99
1
15
EC55:AEP,UK/
EC77:AEP,RU
EC55:
EXCEPT AEP,UK/
EC77:
EXCEPT AEP,RU/
GX99
EXCEPT AEP,UK/
EC77:
EXCEPT AEP,RU/
GX99
R130
1
2
A
B
C
D
3
4
5
6
7
8
9
10
• Semiconductor
Location
Ref. No.
Location
D121
C-6
D151
D-3
D152
C-3
IC101
B-2
IC102
B-3
Q101
C-6
Q102
C-7
Q151
C-3
Q152
C-2
42
42
HCD-EC55/EC77/GX99
HCD-EC55/EC77/GX99
7-14. SCHEMATIC DIAGRAM — HI-AMP BOARD —
0
0
0
0
0
0
0
5.4
5
0
5.5
-42.8
-44.6
44.4
0
0
0
0
42.8
0
0
0.7
0
0
No mark : CD STOP
EC55
MAIN BOARD(1/2)
MAIN BOARD(2/2)
CN602
CN603
(Page 36)
(Page 37)
C
L
EC77/GX99
EC55
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
IC101
IC101
IC102
IC102
EC55
STK433-060
EC77
EXCEPT US,CND
STK433-070
US,CND
GX99
STK433-090-E
EC55
EC77/GX99
C116
C119,C120
R109,R110
0.01
0.0047
0
0
0.01
100
EC55:AEP,UK/
EC77:AEP,RU
EC77:AEP,RU
EC55:EXCEPT AEP,UK/
EC77:EXCEPT AEP,RU/
GX99
EC77:EXCEPT AEP,RU/
GX99
C116
50V
1
C101
50V
1
C102
220
R119
220
R120
22 0
R122
220
R121
0.01
C115
4700p
C118
0.22
R151
0.22
R152
220
R155
220
R156
10k
R159
10k
R160
10k
R162
10k
R165
10k
R166
2.2k
R167
2.2k
R168
2SA2026
Q151
2SA2026
Q152
4700p
C151
4700p
C152
MC2838-T112-1
D151
10k
R128
MA111-TX
D152
JW101
1
8
7
6
5
4
3
2
15
14
13
12
11
10
IC101
IC B/D
-PRE
-VCC
+VCC
LO+
LO-
RO+
RO-
+PRE
SUB
GND
LI+
LI-
ST-BY
RI-
RI+
2SA1235TP-1EF
Q101
2SC3052EF-T1-LEF
Q102
C106
100p
C105
100p
3p
C109
3p
C110
C113
C111
C111,C113
1k
R129
1k
R107
1k
R108
R109
R110
47k
R112
47k
R111
47k
R105
47k
R106
25V
47
C108
25V
47
C107
R101
R10 2
R10 3
R104
R103,R104
470p
C103
470p
C104
1
2
3
4
5
6
7
8
9
10
10P
CN101
OUT-L
-VH
+VH
OUT-R
PA-GND
PROTECT
AMP-ON
IN-L
A-GND
IN-R
R123
47k
C153
0.1
47k
R124
4.7k
R126
100
R130
10k
R127
MAZ8051GMLS0
D121
100k
R125
IC102
C120
C119
10k
R161
OVER LOARD
DET-L
DET-R
AMP
PROTECT-1
PROTECT-2
OVER LOARD
AMP
POWER AMP
POWER AMP
9
HI-AMP BOARD
100uF/ 50V : EC55/EC77 : AEP,RU,E2,E3,E51,MX
100uF/ 63V : EC77 : US,CND/GX99
100uF/ 63V : EC77 : US,CND/GX99
EC77 : US,CND,E2,E3,E51,MX/GX99
EC77 : AEP,RU
EC55
R101,R102
EC77 : US,CND/GX99
EC77 : E2,E3,E51,MX
EC77 : AEP,RU
EC55
12K
15K
5.6K
220
1.8K
2.2K
2.2K
2W
2W
JW120
5
1
2
3
4
5
6
7
8
9
10
11
12
A
B
C
D
E
F
G
H
I
• See page 50 for IC Block diagram.
Ver. 1.2
43
43
HCD-EC55/EC77/GX99
HCD-EC55/EC77/GX99
7-15. PRINTED WIRING BOARD — LOW-AMP BOARD (EC77/GX99) —
•
See page 29 for Circuit Boards Location.
:Uses unleaded solder.
C118
MAIN BOARD
CN603
(Page 35)
LOW-AMP BOARD
AEP,RU
EXCEPT
AEP,RU
R130
C153
C152
C151
R168
R167
R166
R165
R162
R161
R160
C120
R159
R156
R155
C119
C116
C115
C110
C109
C106
C105
C104
C103
R129
R128
R127
R126
R125
R124
R123
R122
R121
R120
R119
R112
R111
R110
R109
R108
R107
R106
R105
R104
R103
R102
R101
D152
D151
D121
Q151
Q102
Q152
Q101
1-872-064-
12
(12)
EC77:AEP,RU,E2,E3,E51,MX
JW112
JW114
JW117
JW116
JW111
JW110
JW120
JW119
JW118
JW113
JW101
A001
R152
R151
C113
C111
C108
C107
C102
C101
CN101
1
15
E
E
E
E
D
EC77:EXCEPT US,CND
EC77:US,CND/GX99
IC102
IC101
1
2
A
B
C
D
E
3
4
5
6
7
8
9
10
EC77/GX99
• Semiconductor
Location
Ref. No.
Location
D151
C-3
D152
C-3
IC101
B-2
IC102
B-4
Q101
C-6
Q102
C-7
Q151
C-4
Q152
C-3
44
44
HCD-EC55/EC77/GX99
HCD-EC55/EC77/GX99
7-16. SCHEMATIC DIAGRAM — LOW-AMP BOARD (EC77/GX99) —
0
0
0
0
0
0
0
5.4
5
0
5.5
-42.8
-44.6
44.4
0
0
0
0
42.8
0
0
0.7
0
0
No mark : CD STOP
MAIN BOARD(2/2)
CN603
(Page 37)
D
EC77/GX99
*
*
*
*
*
*
*
*
*
*
*
*
*
EXCEPT
AEP,RU
AEP,RU
AEP,RU
C116
4700p
50V
1
C101
50V
1
C102
220
R119
220
R120
220
R122
220
R121
0.01
C115
0.22
R151
0.22
R152
220
R155
220
R156
10k
R159
10k
R160
10k
R162
10k
R165
10k
R166
2.2k
R167
2.2k
R168
2SA2026
Q151
2SA2026
Q152
4700p
C151
4700p
C152
MC2838-T112-1
D151
10k
R128
MA111-TX
D152
JW101
1
8
7
6
5
4
3
2
15
14
13
12
11
10
IC101
IC B/D
-PRE
-VCC
+VCC
LO+
LO-
RO+
RO-
+PRE
SUB
GND
LI+
LI-
ST-BY
RI-
RI+
2SA1235TP-1EF
Q101
2SC3052EF-T1-LEF
Q102
C106
100p
C105
100p
3p
C109
3p
C110
C113
C111
C111,C113
1k
R129
1k
R107
1k
R108
R109
R110
47k
R112
47k
R111
47k
R105
47k
R106
25V
47
C108
25V
47
C107
R101
R10 2
R103
R104
R103,R104
470p
C103
470p
C104
1
2
3
4
5
6
7
8
9
10
10P
CN101
OUT-L
-VH
+VH
OUT-R
PA-GND
PROTECT
AMP-ON
IN-L
A-GND
IN-R
R123
47k
C15 3
0.1
47k
R124
4.7k
R126
10k
R127
MAZ8051GMLS0
D121
100k
R125
IC102
C120
C119
10k
R161
OVER LOARD
DET-L
DET-R
AMP
PROTECT-1
PROTECT-2
OVER LOARD
AMP
POWER AMP
POWER AMP
9
LOW-AMP BOARD
100uF/ 50V : EC77 : AEP,RU,E2,E3,E51,MX
100uF/ 63V : EC77 : US,CND/GX99
100uF/ 63V : EC77 : US,CND/GX99
EC77 : AEP,RU
EC77 : E2,E3,E51,MX
EC77 : E2,E3,E51,MX
R101,R102
IC101
IC101
IC102
IC102
EC77 : US,CND/GX99
EC77 : AEP,RU
12K
15K
1.5K
1.8K
2.2K
2W
2W
0
0
0
0
STK433-070 EC77 : EXCEPT US,CND
STK433-090-E EC77 : US,CND/GX99
4700p
C118
100
R130
JW120
5
1
2
3
4
5
6
7
8
9
10
11
12
A
B
C
D
E
F
G
H
I
• See page 50 for IC Block diagram.
Ver. 1.2
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