Digital Mother Assy (2/8) - Pioneer VSX-84TXSi Service Manual

1

3.14 DIGITAL MOTHER ASSY (2/8)

A
V+3DD
GNDU
B
R191
R203
BUSY2
DDO
DDI
DCLK
CNVSS
DRDY
REQ2
XDRST
C
DREQ
POFF
RST2
RST1
R209
EXOE
EXDT
EXCK
EXST R210
R211
D
CN202
STBY
VKN1414
VSS
10
D232TX
RXD(31) 9
D232CT
BUSY(34)
8
NC 7
VDD
6
DJGCLK
E
SCLK 5
D232RX
TXD
4
CNVSS
PGM(9) 3
XDRST
RST(12)
2
VSS 1
V+5_6ST
2SA1036K(QR)
L 1/8
F
POFF5
Q202
RT1N241M
L
2/8
GNDU
52
1
2
VSX-72TXV ONLY
V+3DD1
L201
VSX-74TXVi ONLY
QTL1013
47k
4.7k 1
2
3
4
R202 100 5
6
7
R205 100
8
R258 100 9
R206 100 10
R207 47k
11
12
C202 13
0.1/16 YB
14
R208 47k 15
C203 YB 470p
16
17
18
19
100 20
21
22
23
100 24
25
47k
R195 47k
R192 47k
R212 stby
R213 stby
CONT3V
L 3/8, 4/8
V+5_6U
D201
IC221
NJM2391DL1-33
DAN202U
IN OUT
1 3
2
Q201
2
3
100 99 98 97 96 95 94 93 92 91 90 89 88 87
DSP2SSI
DSP2BUSY
HDO
HDI
HCLK
BYTE
CNVSS
HRDY
IRQ2
RESET
XOUT DSP u-COM
VSS
PEG117A
XIN
IC201
VCC
NMI
(USB UNLK)
HREQ
POFF
DSP2RST
DSP1RST
EXOE
S DATA
S CLOCK
STB
CSN
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
V+3DD
E2
B2
C2
UMB1N
L 1/8
Q108
(2/2)
12VON
Q106
RT1N124M
VSX-74TXVi
3
4
R204 47k
R244 47k
86 85 84 83 82 81 80 79 78 77 76
75 DQ11
D11
74 DQ12
D12
73 DQ13
D13
72 DQ14
D14
71 DQ15
D15
70
A0
69
A1
68
A2
67
A3
66
A4
65
A5
64
A6
63
A7
62
VSS
61
A8
60
VCC
59
A9
58 A10
A10
57 A11
A11
A12
56
A12
55 A13
A13
54 A14
A14
A15
53
A15
52 A16
A16
51 A17
A17
41 42 43 44 45 46 47 48 49 50
R245
stby
DAD
V+12A
E
L 4/8, 7/8, 8/8
B
UMB1N
C
Q108
(1/2)
MFWRITE
L 1/8
4
A1
A2
A3
A4
A5
A6
A7
A8
A9