Onkyo TX-SR502E Service Manual page 69

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MICROPROCESSOR TERMINAL DESCRIPTIONS-2
Q7502:MPD780232GC-030-8BT(SUB MICROPRCESSOR)
No. Pin name
1 VDD1
2 VSS1
3 X1
4 X2
5 IC
6 ~RESET
7 SUBCL/SCK
8 SUBDO/SDI
9 SUBDI/SDO
10 SUBRDY
11 VBJ
12 VAJ
13 ~SYSIN
14 ~SYSOUT
15 ~IRIN
16 ~IRF
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L 13942296513
17 STBYLED
18 AVSS
19 K3
20 K2
21 K1
22 K0
23 VSS0
24 AVDD
25 VDDO
26 NU
27 PURE
28 P35
29 P34
30 P33
31 P32
32 P31
33 P30
34 P29
35 P28
36 P27
37 P26
38 P25
39 P24
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40 P23
.
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I/O Description
I Power supply terminal. Connect to 5V.
I Ground terminal.
I X'tal input terminal.
O X'tal input terminal.
I Connect to ground. Not used.
System reset signal input terminal.
I
Clock input terminal to transmit the
I
signal from main microprocessor.
Data input terminal to transmit the signal
I
from main microprocessor.
Data output terminal to transmit the signal
O
to main microprocessor.
Data ready output terminal to transmit to
O
the main microprocessor.
Pulse input terminal from the rotary encoder
I
of volume.
Pulse input terminal from the rotary encoder
I
of volume.
System code input terminal.
I
System code output terminal.
O
I Not used.
Signal input terminal from the remote
I
controller.
O Standby LED control output terminal.
I Ground terminal for A/D converter.
I Operation key connection terminal-3.
I Operation key connection terminal-2.
I Operation key connection terminal-1.
I Operation key connection terminal-0.
I Ground terminal.
I Power supply terminal for A/D converter.
I Power supply terminal. Connect to +5V.
---
Not used.
O PURE AUDIO LED control output terminal.
O
Segment output terminal of P35.
Segment output terminal of P34.
O
O Segment output terminal of P33.
Segment output terminal of P32.
O
O Segment output terminal of P31.
Segment output terminal of P30.
O
Segment output terminal of P29.
O
Segment output terminal of P28.
O
O Segment output terminal of P27.
O Segment output terminal of P26.
Segment output terminal of P25.
O
O
Segment output terminal of P24.
O Segment output terminal of P23.
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8
No. Pin name
41 P22
42 P21
43 P20
44 P19
45 P18
46 P17
47 P16
48 P15
49 P14
50 P13
51 P12
52 P11
53 P10
54 P9
55 P8
56 P7
57 P6
58 P5
59 VDD2
60 VLOAD
61 P4
Q Q 62 P3
3 6 7 1 3
63 P2
64 P1
65 16G
66 15G
67 14G
68 13G
69 12G
70 11G
71 10G
72 9G
73 8G
74 7G
75 6G
76 5G
77 4G
78 3G
79 2G
80 1G
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TX-SR502/E/8250/HT-R520
2 9 9 4 2 8
I/O Description
O Segment output terminal of P22.
O
Segment output terminal of P21.
O
Segment output terminal of P20.
O
Segment output terminal of P19.
O Segment output terminal of P18.
O Segment output terminal of P17.
O Segment output terminal of P16.
Segment output terminal of P15.
O
O Segment output terminal of P14.
Segment output terminal of P13.
O
O Segment output terminal of P12.
O Segment output terminal of P11.
O Segment output terminal of P10.
O Segment output terminal of P9.
O
Segment output terminal of P8.
O Segment output terminal of P7.
O Segment output terminal of P6.
O Segment output terminal of P5.
I Power supply terminal. Connect to +5V.
Negative power supply terminal of FL
I
controller.
Segment output terminal of P4.
O
Segment output terminal of P3.
O
1 5 0 5 8 2 9 9 4
O
Segment output terminal of P2.
Segment output terminal of P1.
O
Grid output terminal of 16G.
O
Grid output terminal of 15G.
O
O Grid output terminal of 14G.
O
Grid output terminal of 13G.
O Grid output terminal of 12G.
O
Grid output terminal of 11G.
O Grid output terminal of 10G.
O
Grid output terminal of 9G.
Grid output terminal of 8G.
O
O Grid output terminal of 7G.
O
Grid output terminal of 6G.
Grid output terminal of 5G.
O
O Grid output terminal of 4G.
O Grid output terminal of 3G.
Grid output terminal of 2G.
O
Grid output terminal of 1G.
O
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9 9
2 8 9 9