Schematic Diagram - 3Ch Amp Board (Ec99) - Sony HCD-EC69 Service Manual

6-13. SCHEMATIC DIAGRAM - 3CH AMP Board (EC99) -

1 2
3CH AMP BOARD
A
B
D201
MC2838-T112-1
C
D
CN205
7P
TP207
HI-OUT-L 7
TP206
H
LOW-L/SW-OUT 6
TP205
E
-VH 5
TP204
MAIN
+VH 4
BOARD TP203
(1/2) LOW-R/SW-OUT 3
TP202
CN632
HI-OUT-R 2
(Page 28)
TP201
PA-GND 1
F
HCD-EC69/EC79/EC99
3 4
D202
Q201 - 203
MA2J1110GLS0
OVER LOAD DETECT
R240
R241
R239
22k
2.2k 1.5k
-0.8 0
R242
C227
1.5k
0.1
Q203
0
2SA2026
R233 R231
R235
22k 1.2k
2.2k
-0.8 0
C225
0.1
Q201
0
2SA2026
R234 R232
R236
22k 1.2k
2.2k
-0.8 0
C226
0.1
Q202
0
2SA2026
D203
MA2J1110GLS0
5 6 7
+PRE SUB GND
1 2 3 4 5 6 7 8 9 10 11 12 13
R229 R230 C205
0.22 0.22 100p
2W 2W
R226 R225
220 220
R228 R227
R245
220 220
470
C224 C223
0.1 0.1
C230 C229
0.1 0.1
C209 R213
3p 47k
C207
1
50V
C220
C219
100 C228
R222
100
50V 0.1
100
50V
R223
1k
33 33
8 9
IC201
POWER AMP
IC201
STK433-320-E
14 15 16 17 18 19
R238
0.47
2W
C206 C213
100p 100p
R237
R221
C215
0.47
47k
3p
2W
R244
0
R246
R219
C203 C204
470
1k
470p 470p
R207 R208
47k 47k
C201 C202 R220
1 1 470
50V 50V
R205 R206
4.7k 4.7k
R203 R204
R209 R210 R214 C210
1.5k 1.5k
1.5k 1.5k 47k 3p
R216
C208
C214
C217
C218
1
47
0.01
0.01
50V
25V
C216
4700p
HCD-EC69/EC79/EC99
10 11
C212
470p
R218
47k
C211
1
50V
R217
22k
220
CN203
7P
TP214
7 SW-IN
TP213
L
6 SW-AGND
TP212
5 IN-R
TP211
MAIN
4 A-GND
BOARD
TP210
3 IN-L (1/2)
TP209
CN643
2 AMP-STBY
(Page 28)
TP208
1 OVERLOAD