Sony HCD-EC55 - Schematic Diagram - LOW-AMP Board (EC77;GX99)

4444
HCD-EC55/EC77/GX99
HCD-EC55/EC77/GX99
7-16. SCHEMATIC DIAGRAM — LOW-AMP BOARD (EC77/GX99) —
0
00
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
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
18765432 151413121110
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
C120C119
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
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
00
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