Pioneer SC-LX90 Service Manual page 371

Audio/video multi-channel amplifier
Table of Contents

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5
CN8009
5
6
CN8011
5
CN8012
MOTHER1 ASSY
LF
LF
CN8014
0
130
120
110
100
5
6
19
CN8009
R8901
1.C7
2.RF UNLK
3.DEXP ST
4.DEXP DT2
5.DEXP CK
6.DEXP OE
7.GNDD
8.GNDD
CN8010
9.V+3DS
AWX
0
0
0 0
1
1
1 1
2
2
2 2
3
3
3 3
20.FR AD
4
4
4 4
19.GNDSP
18.Z2L
5
5
5 5
17.GNDZ2
16.Z2R
6
6
6 6
15.GNDZ2
14.XM OL
7
7
7 7
13.XM POW
12.XM LSDT
8
8
8 8
11.XM LINK
10.XM RST
9
9
9 9
9.XM ANT
8.XM TX
7.XM RX
6.XM RATE
5.XM FS
4.XM MUTE
3.XM DT4
CN8036
2.GNDD
1.GNDD
1.GNDHR
2.HR_SCL
C8206
3.HR_SDA
4.HR_RST
5.HRMUTE
6.GNDHR
7.HRL
8.GNDHR
C8211
9.GNDHR
10.HRR
11.GNDHRR
12.HDSPDIF3
13.GNDHR
14.NC
15.NC
16.NC
17.NC
CN8011
C8222
1.IPOD3
2.GNDD
C8203
3.IPOD5
4.GNDD
C8204
5.HD SPDIF5
6.GNDD
7.HD SPDIF3
8.GNDD
9.NET SPDIF
10.GNDD
11.MAINPORT
12.GNDD
13.Z2OPT
14.GNDD
15.Z4OPT
16.V+5D
17.V+5D
18.GNDD
19.GNDD
20.V+3DR
21.V-5D
90
80
70
60
6
7
1
15.DSP DI
14.DSP DO
13.DSP CLK
12.DSP REQ
11.DSP RDY
10.DSP RST
9.DS232TX
8.232RX
7.DS232CT
6.POFF
5.DFWRITE
4.232SWDS
3.UART1
2.GNDD
20.HPMUTE
1.GNDD
19.Z2 MUTE
CN8003
CN8004
18.Z3 MUTE
17.PRE MUTE
16.F MUTE
R8201
15.C MUTE
14.S1 MUTE
R8202
13.SB MUTE
R8203
12.S2 MUTE
R8204
R8205
11.INPUT
R8206
DT
R8207
10.INPUT
CLK
R8208
R8209
R8210
9.MODE DT
8.MODE CLK
7.MVOL DT
6.MVOL CK
5.VOL STB1
4.VOL STB2
3.ZVOL DT
2.ZVOL CLK
1.GNDD
8.RF UNLK
7.DEXP ST
6.DEXP DT
5.DEXP CK
4.DEXP CE
3.GNDD
CN8001
2.GNDD
1.V+3DS
1.GNDSP
2.Z3R DA
3.GNDSP
4.Z3L DA
5.GNDSP
CN8005
6.Z2R DA
7.GNDSP
8.Z2L DA
9.GNDSP
10.EXR DA
11.GNDSP
12.EXL DA
13.GNDSP
14.SRB DA
15.GNDSP
16.SLB DA
17.GNDSP
18.SBR DA
19.GNDSP
20.SBL DA
1.GNDSP
CN8002
2.SW2 DA
3.GNDSP
4.SW1 DA
5.GNDSP
6.SRA DA
7.GNDSP
8.SLA DA
9.GNDSP
10.FR DA
11.GNDDA
12.GNDDA
13.GNDDA
14.FL DA
15.GNDSP
16.C2 DA
17.GNDSP
18.C1 DA
19.GNDSP
20.GNDSP
20.V+15A
CN8006
1.V+15A
19.V+15A
CN8034
2.V+15A
18.GNDA
3.GNDA
17.GNDA
4.GNDA
16.V-15A
5.V-15A
15.V-15A
6.V-15A
14.SBL AD
13.GNDSP
12.SBR AD
11.GNDSP
10.SL AD
9.GNDSP
8.SR AD
7.GNDSP
6.C AD
5.GNDSP
4.SW AD
3.GNDSP
2.FL AD
1.GNDP
C8212
C8205
17.GND (IP)IF
16.IP SPDIF5
15.GNDD
CN8033
14.HD SPDIF5
13.GNDD
1.GNDU
12.MAINOPT
2.GNDU
11.GNDD
3.GNDU
10.Z2OPT
4.GNDU
9.GNDD
R8211
8.Z4OPT
7.HRMUTE
R8212
6.V+5D
5.V+5D
R8213
4.GNDD
3.GNDD
2.V-5D
1.V+3DR
CN8008
50
40
30
20
SC-09TX
7
240
230
220
210
200
190
180
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
(ANP7591-D)
0
10
0
8
SIDE B
A
B
C
D
E
F
Y
V
X
225
8

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