FP520 Service Manual
Page 13 of 64
47
RED_LED
I
red light control switch
48
5TC
O
5T control pin
49
5RC
O
5R control pin
50
SAVE
I
5C control pin
51
INTO
O
data output pin
（
connects 3252
）
52
PLLBYPASS
O
data output pin
（
connects 3252
）
53
PLLSEL2
O
data output pin
（
connects 3252
）
54
HCSN
O
data output pin
（
connects 3252
）
55
HWRN
I
data input pin
（
connects 3252
）
56
HRDN
O
data output pin
（
connects 3252
）
57
HOBIB
O
data output pin
（
connects 3252
）
58
RSTN_3252
O
data output pin
（
connects 3252
）
59
NMI
O
data output pin
（
connects 3252
）
60
ACC
-
3M
61
PIO3
O
data output pin
（
connects 3252
）
62
VSS
-
Gnd
63
HPI_DATA0
I/O
HPI Data Bus
（
connects 3252
）
64
HPI_DATA1
I/O
HPI Data Bus
（
connects 3252
）
65
HPI_DATA2
I/O
HPI Data Bus
（
connects 3252
）
66
HPI_DATA3
I/O
HPI Data Bus
（
connects 3252
）
67
HPI_DATA4
I/O
HPI Data Bus
（
connects 3252
）
68
HPI_DATA5
I/O
HPI Data Bus
（
connects 3252
）
69
HPI_DATA6
I/O
HPI Data Bus
（
connects 3252
）
70
HPI_DATA7
I/O
HPI Data Bus
（
connects 3252
）
71
NC
-
NC
72
NC
-
NC
73
SI/D7
O
LCD control pin
74
SCL/D6
O
LCD control pin
75
AO
O
LCD control pin
76
/RST
O
LCD control pin
77
/CS1
O
LCD control pin
78
LAMP
O
backlight control pin
79
K0
O/I
digital key detection pin
80
K1
O/I
digital key detection pin
81
K2
O/I
digital key detection pin
82
K3
O/I
digital key detection pin
83
K4
O/I
digital key detection pin
84
K5
O/I
digital key detection pin
85
K6
O/I
digital key detection pin
86
K7
O/I
digital key detection pin
87
BATT
I
Voltage check input
88
RSSI
I
Receiving filed intensity signal input
89
BUSY
I
Squelch voltage check input
Summary of Contents for FP520
Page 1: ... 键入文档副标题 gh 选取日期 在此处键入文档的摘要 摘要通常是对文档内容的简短总结 在此处键入文档的摘要 摘要 通常是对文档内容的简短总结 ...
Page 44: ...FP520 Service Manual Page 43 of 64 Figure 1 FP520 01 Mainboard Schematic Diagram 136 174MHz ...
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Page 54: ...FP520 Service Manual Page 53 of 64 Figure 4 FP520 02 Mainboard Schematic Diagram 400 470MHz ...
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Page 64: ...FP520 Service Manual Page 63 of 64 Figure 7 KBC 51 7 4V Electrical Schematic Diagram ...
