HCD-EC69/EC79/EC99
HCD-EC69/EC79/EC99
33
33
6-13. SCHEMATIC DIAGRAM - 3CH AMP Board (EC99) -
BOARD
(1/2)
MAIN
H
CN632
BOARD
(1/2)
MAIN
L
CN643
-0.8
0
0
-0.8
0
0
-0.8
0
0
-39.8
-41.7
41.2
0
0
0
0
39.8
0
0
0.7
0
0
0
0
0
0
1
6
5
4
3
2
11
10
9
8
7
12
16
15
14
13
19
18
17
IC201
STK433-320-E
-PRE
-VCC
+VCC
+PRE SUB GND
ST-BY
50V
1
C202
22k
R234
1.5k
R242
47k
R221
50V
C219
100
TP206
TP212
C226
0.1
2.2k
R236
220
R227
2W
0.22
R230
22k
R217
50V
1
C201
1k
R223
2SA2026
Q202
22k
R233
C205
100p
470p
C212
TP211
47k
R214
TP205
C216
4700p
47k
R218
C206
100p
47k
R213
TP204
TP208
22k
R240
TP210
50V
100
C220
47k
R207
1k
R219
2.2k
R241
TP209
47k
R208
220
R216
TP203
C225
0.1
MA2J1110GLS0
D203
3p
C210
TP202
470
R220
2SA2026
Q203
470p
C203
470
R245
C227
0.1
2W
0.47
R237
3p
C209
2W
0.22
R229
470p
C204
0
R244
1.5k
R239
2.2k
R235
2SA2026
Q201
MC2838-T112-1
D201
3p
C215
2W
0.47
R238
C213
100p
TP201
0.1
C224
0.1
C228
220
R226
MA2J1110GLS0
D202
25V
47
C214
TP214
R222
100
470
R246
50V
1
C211
0.1
C223
220
R225
1
2
3
4
5
6
7
7P
CN203
OVERLOAD
AMP-STBY
IN-L
A-GND
IN-R
SW-AGND
SW-IN
220
R228
1.2k
R232
TP213
1.2k
R231
TP207
1
2
3
4
5
6
7
7P
CN205
PA-GND
HI-OUT-R
LOW-R/SW-OUT
+VH
-VH
LOW-L/SW-OUT
HI-OUT-L
C217
0.01
C218
0.01
1.5k
R209
1.5k
R210
50V
1
C207
50V
1
C208
0.1
C229
0.1
C230
1.5k
R203
1.5k
R204
R205
4.7k
4.7k
R206
3CH AMP BOARD
IC201
POWER AMP
4
B
6
9
11
D
10
3
5
C
F
1
E
8
A
2
7
OVER LOAD DETECT
Q201 - 203
(Page 28)
(Page 28)