Sch09-Woofer Amp - Denon HEOS 7 HS2 Service Manual

1 2 3
WOOFER AMPLIFIER
A
D+M CONFID EN TIA L
B
D26
AMP_FAUL T 1
C
3.3V D
L 46
B AT 54S
D
AIOS_MCL K
C150
0.1uF
E
AMP_PDN1
AIOS_L R CL K
AIOS_SCL K
DSP_I2S_D0
SDA2
F
SCL 2
AMP_R E SE T 1
G
H
J
K
L
M
1 2 3
4 5 6 7
R 85
R 86
C128
100R
470R
4.7nF
C129
0.047uF
C133
C135
0.047uF
R 89 470R 4.7nF
0R
C142
C144
100nF
4.7uF
3.3V D 13
10K AV DD
R 91 14
A_SE L
15
MCL K
R 92
16
OSC_R E S
18.2K 17
DV SSO
18
V R _DIG
R 262 19
C151
PDN
0R 20
4.7uF
L R CL K
21
SCL K
T P125
22
SDIN
23
SDA
24
SCL
U8
T AS5711PHPR
3.3V D
L 47
0R
C165
C168
0.1uF
4.7uF
C166
0.1uF
4 5 6 7
8 9 10
R 87 22.1K
C130
2200pF
C131
330pF
R 88
C132 1uF
V CC_SW
18R
L 16
C134 3.3nF
22uH
C136
C139 C140
1nF 0.68uF
0.1uF
C141
330pF
R 90
48 0.68uF
18R
PGND_AB
L 17
47 22uH
PGND_AB
46
OUT _B
45
C147
PV DD_B V CC_SW
44
C148 C149
PV DD_B
3.3nF
43
1nF
B ST _B
0.1uF
42
B ST _C
41 C152
PV DD_C V CC_SW
40
C154
PV DD_C
3.3nF
39
OUT _C
1nF
C153
38
PGND_CD
L 21
0.1uF
37
PGND_CD
V CC_SW
22uH
0.68uF
R 94
18R
C157
C159
+
470uF
1nF
C161
C158
330pF
0.1uF
C164
0.68uF
L 23
C167
3.3nF
1uF
22uH
R 95
18R
C169
330pF
8 9 10
38
11 12 13
C137
1nF
C143
1nF
C145 C146
1nF
C156
C155
1nF
C160
1nF
C162 C163
1nF
SCHEMATIC DIAGRAMS (09/11)

SCH09-Woofer AMP

11 12 13
14 15 16
A
B
C
T P94
T P95
L _WR +
L _WR -
D
4
3
2
E
1
CN3
T P96
R _WR + F
T P97
1
R _WR -
G
H
J
K
L
M
14 15 16