Mother 2 Assy (1/2) - Pioneer SC-LX90 Service Manual

1

10.53 MOTHER 2 ASSY (1/2)

MOTHER2 ASSY
AD
1/2
A
CN8501
V+5_6ST
19R-1.25FJ
V+5.6ST 1
V+5.6ST 2
V+5.6U
3
V+5.6U
4
GNDU 5
GNDU 6
GNDU 7
GNDU 8
V+12F
9
V+12F
V+12F 10
232CTS
232CTS 11
232RX
232RX 12
232TX
B
232TX 13
SM_RY1
SMPS RY1
14
SM_RY2
SMPS RY2 15
ACRY
ACRY 16
WUP
WAKEUP 17
1WUP
1W WUP 18
12VON
12VON
19
CN8502
13R-1.25FJ
N2D_DO
NEW2DI DO
1
N2D_CK
NEW2DI CK
2
N2D_RQ
NEW2DI REQ
3
N2D_RD
NEW2DI RDY
4
N2D_DI
NEW2DI DI
5
DISP_DI
6
DISPLAY DI
DISP_DO
DISPLAY DO 7
DISP_CK
DISPLAY CK 8
C
DISP_RQ
9
DISPLAY REQ
DISP_RDY
DISPLAY RDY 10
DISP_RST
DOSPLAY RST 11
EVT_DI
12
EVENT DI
EVT_DO
EVENT DO 13
CN8503
21R-1.25FJ
EVENT CK
1
EVENT REQ
2
EVENT RDY
3
EVENT RST
4
EXP ST
5
EXP DT 6
EXP CK
7
EXP OE
8
GNDV 9
GNDV 10
D
NET Y 11
GNDV
12
NET CB
13
GNDV
14
NET CR
15
GNDV 16
IP V 17
GNDV 18
GNDV 19
20
NET V
21
V+5V
8501
VEF1040
E
8502
VEF1040
8503
VEF1040
CK8809
8504
VEF1040
8505
F
(VEF1040)
STBY
AD
1/2
116
1
2
UCOM_CONTROL
EXPANDER
V+5_6U
R8530 47k
R8531 47k
GNDU
R8532 47k
R8533 47k
SM_RY1
SM_RY2
ACRY
WUP
12VON
(1/4)
IC8504
14
1
3
2
7
IC8504
14
4
6
5
(2/4)
7
14
9
8 IC8504
10
(3/4)
7
12 14
11 IC8504
13
7
R8526
R8527
R8528
R8529
EVT_CK
EVT_RQ
EVT_RDY
EVT_RST
GNDV
R8591 STBY
GVSEP4
R8592 STBY
CN8505
XKP3071
1
GAV
2
FV
3
GIP
4
IPV
5
GNW
6
NWV
7
V+5V
8
V+5V
9
GAV
10
GAV
11
V-5V
12
V-5V
13
GAV
14
CVMAIN
15
GAV
16
CVZONE2
17
GAV
18
CVZONE3
19
GAV
20
CVZONE4
21
V-5CV
22
GCV
23
V+5CV
2
3
V+5U
IC8501 BU4094BCFV
1 16
STB
VDD
2 15
DATA
OE
3 14
CLOCK LCMU Q5
4 13
Q6
Q1 VM_MU
5 12
Q7
Q2 VZ2MU
6 11
Q8
Q3 VZ3MU
7 10
QS'
Q4 VZ4MU
8 9
VSS
QS
PORT EXPANDER
IC8504
TC74VHCT08AFTS1
R8564
STBY
(4/4)
220k
100k
100k
100k
R8580
STBY
R8593
STBY
R8594
STBY
V+5V
V-5V
V-5CV
V+5CV
SC-09TX
3
4
V+5U
IC8502 BU4094BCFV
1 16
STB VDD
2 15
DATA OE
3 14
CLOCK 12TRG1 Q5
4 13
Q1 232SW4 12TRG2 Q6
5 12
12TRG3 Q7
Q2 232SW5
6 11
Q3 STBYOFF 12TRG4 Q8
7 10
Q4
QS'
8 9
VSS QS
PORT EXPANDER
GCC
CN8506
XKP3071
WPCK
WPCK
WPDT
WPDT
WPCS
WPCS
WPRST
WPRST
BUSY
BUSY
GNDUW
GNDU
GAV
GV10
FVY
GAV
FVC
V+5V
V+5V
GAV
GAV
V-5V
V-5V
GAV
CVMAIN
GAV
CVZONE2
V-5CV
GCV
V+5CV
4
AD
2/2
Front C's
R8599
Front S(Y
STBY
Front S(C
CN85
XKP3