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MICROPROCESSOR PIN INFORMATION (CONT)
TAKEN FROM THE REALISTIC SERVICE MANUAL, BY ROGERBIRD
HTX100 - IC402 - UC1208
PIN No.
Name
PIN No.
Name
PIN No.
Name
PIN No.
Name
1
5V
17
FKNOB 2
33
VCXO 3
49
SQU
2
5V
18
GND
34
VCXO 4
50
STOP
3
5V
19
SSB
35
VCXO 5
51
GND
4
ROW 1
20
GND
36
VCXO 6
52
5V
5
ROW 2
21
GND
37
GND
53
5V
6
ROW 3
22
DATA
38
GND
54
5V
7
5V
23
CLK
39
M UP
55
LCD (busy)
8
COL 1
24
STB 1
40
M DOWN
56
TX OUT
9
COL 2
25
STB 2
41
PTT
57
MUTE
10
COL 3
26
VCC
42
FLOCK
58
5V
11
5V
27
BEEP
43
RESET
59
LDC (scr)
12
GND
28
GND
44
TEST
60
LCD (si)
13
GND
29
GND
45
OSC 1
61
LCD (cs)
14
GND
30
LOCD
46
OSC 2
62
LCD (c/d)
15
GND
31
VCXO 1
47
GND
63
LCD (reset)
16
FKNOB 1
32
VCXO 2
48
5V
64
5V