Onkyo HT-R520 Service Manual

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

Onkyo HT-R520 Specifications

General

Brand	Onkyo
Model	HT-R520
Category	Receiver
Language	English