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IC801 : HD6473724F
8 bit µ-COM
No.
Port
Name
28
P43/FS19
P12
29
P42/FS18
P11
30
P41/FS17
P10
31
P40/FS16
P9
32
P50/FS15
P8
33
P51/FS14
P7
34
P52/FS13
P6
35
P53/FS12
P5
36
P54/FS11
P4
37
P55/FS10
P3
38
P56/FS9
P2
39
P57/FS8
P1
40
P17NDISP
VP
41
P60/FDO
16G
42
P61/FD1
15G
43
P62/FD2
14G
44
P63/FD3
13G
45
P64/FD4
12G
46
P65/FD5
11G
47
P66/FD6
10G
48
P67/FD7
9G
49
P70/FD8
8G
50
P71/FD9
7G
51
P72/FD10
6G
52
P73/FD11
5G
53
P74/FD12
4G
54
P75/FD13
3G
55
P76/FD14
2G
56
P77/FD15
1G
57
VCC
VCC
58
P80
ASA
59
P81
ASB
60
P82
ASC
61
P83
SPR
62
P84
SPA
63
P85
SPB
64
P86
PRY
65
P87
FMC
66
P90
lIE
67
P91/SCK1
SCK
68
P92
CKB
69
P93/S01
SDT
70
P94/SCK2
XCK
71
P95
DTB
72
P96/S02
XDT
73
P97
74
PAO
VUP
75
PA1
VDN
76
AVCC
AVCC
77
POO/ANO
4051
78
P01/AN1
PRD
79
P02/AN2
PRV
80
P03/AN3
V2
110
o
1-
0
0
0
0
0
Fluorescent character display tube anode drive signal
0
0
0
0
0
0
1-
VP (-25V)
0
1-
0
0
0
0
0
0
0
0
Fluorescent character display tube grid drive signal
0
0
0
0
0
0
o
1-
+5V
0
0
]
A-D select (4051)
0
0
Speaker relay (CENTER, REAR & PHONES)
0
]
Speaker relay (MAIN NB)
0
0
Power relay
0
Full MUTE
0
Video Type Select (Internal synchronization)
0
LC78213, TC9273N, LC7535, LM7000N Serial clock
0
BU2090 Serial clock
0
LC78213, TC9273N, LC7535, LM7000N Serial data
0
YSS223 Serial clock
0
BU2090 Serial data
0
YSS223 Serial data
N.C.
0
Volume up
0
Volume down
+5V for A-D
I
Key switch, Rec out switch & Signal meter in
I
Protection 1 (A-D)
I
Protection 2
(A-D)
I
Frequency step switch & PAUNTSC switch
Function
(A-D)
(A-D)
RX-V990
18
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