Pioneer SC-LX90 Service Manual page 268

Audio/video multi-channel amplifier
Table of Contents

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1
A
Large size
SCH diagram
1/2
B
VA153
VA156
VA159
VA162
VA165
VA168
VA171
VA174
VA177
VA180
C
2/2
1/2
D
E
F
122
1
2
NM
NM
NM
NM
NM
NM
NM
NM
R156
47k
NM
NM
R159
NM
WP3
R171
10k
R172
10k
R173
10k
RSDA3
RSCL3
WP2
R186
10k
R187
10k
R188
10k
RSDA2
RSCL2
WP1
R196
10k
R197
10k
R198
10k
RSDA1
RSCL1
SC-09TX
2
3
NM
VA152
NM
VA155
NM
VA158
NM
VA161
NM
VA164
NM
VA167
NM
VA170
NM
VA173
R155
47k
NM
VA176
NM
VA179
R158
NM
C157
0.1u/10
R12X0-
61
R12X0+
RnX0-_3
62
RnX0+_3
63
R12X1-
AVCC33_4
64
R12X1+
RnX1-_3
65
RnX1+_3
C159
0.1u/10
66
AGND8
R12X2-
RnX2-_3
67
R12X2+
RnX2+_3
68
AVCC18_7
69
RSDA1
DSDA2
70
RSCL1
DSCL2
R177
71
1k
RPWR2
72
C162
DVDD_2
0.1u/10
73
DGND_2
R178
74
RSVDL
75
HPDIN
4.7k
TSDA
76
R179
10
TSCL
77
10
R180
TPWR/I2CADDR
R181
4.7k
78
AGND9
NM
79
R185
80
3
4
NM
VA151
NM
VA154
NM
VA157
NM
VA160
NM
VA163
NM
VA166
NM
VA169
NM
VA172
R154
47k
NM
VA175
NM
VA178
R157
NM
C158
40
0.1u/10
AGND5
39
RnXC+_2
38
RnXC-_2
R174
37
AVCC18_4
R200
4.7k
NM
36
HPD1
EXTPSEL/INT
35
C160
DGND_1
34
0.1u/10
DVDD_1
R176
33
RPWR0
32
1k
DSCL0
31
DSDA0
30
AVCC18_3
29
RnX2+_1
28
RnX2-_1
C163
AGND4
27
RnX1+_1
26
0.1u/10
RnX1-_1
25
AVCC33_1
24
RnX0+_1
23
RnX0-_1
22
21
C165
0.1u/10
4
R11XC+
R11XC-
HPD2
RSCL3
RSDA3
R10X2+
R10X2-
R10X1+
R10X1-
R10X0+
R10X0-

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