27
Unit[V]
Unit[V]
Ref. No.
PIN
STBY
TALK
NOTE
Ref. No.
PIN
STBY
TALK
NOTE
1
0
0
2
0
0
3
0
0
4
3.1
3.1
5
0
0
6
0
3.8
7
0
3.8
8
0
0
OPEN
9
2.6
2.6
10
0
0
11
0
0
12
3.6
3.6
13
0
0
GND
14
2.2
2.2
15
2.2
2.2
16
2.2
2.2
17
2.2
2.2
18
2.2
2.2
19
2.2
2.2
20
2.2
2.2
21
2.2
2.2
IC202
22
2.2
2.2
23
2.2
2.2
24
2.2
2.2
25
2.2
2.2
26
2.2
2.2
27
2.2
2.2
28
0
0
GND
29
3.6(AC)
3.6(AC)
30
0
0
31
0
0
GND
32
1.5
1.5
33
1.5
1.5
OPEN
34
3.6
3.6
35
1.6
1.6
OPEN
36
1.6
1.6
37
3.6
3.6
38
1.6
1.6
39
1.6
1.6
40
0
0
OPEN
41
0
0
OPEN
42
0
0
OPEN
43
3.6
3.6
OPEN
44
1.6
1.6
45
1.6
1.6
46
0
0
GND
47
1.6
1.6
48
1.6
1.6
49
1.6
1.6
50
0
0
GND
51
3.6
3.6
52
3.6
3.6
53
0.4
0.4
54
0.6
0.6
55
0
0
GND
56
3.6
3.6
57
3.6
3.6
58
3.6
3.6
59
3.6
3.6
60
2.2
0
OPEN
61
0
0
62
0
0
63
3.6
3.6
OPEN
64
3.6
3.6
OPEN
65
3.6
3.6
OPEN
IC202
66
3.6
3.6
67
3.6
3.6
68
3.6
3.6
69
3.6
3.6
70
3.6
3.6
71
0
0
72
0
0
73
0
0
74
0
0
GND
75
3.6
3.6
76
0
0
OPEN
77
0
0
78
0
3.2
79
0
0
80
0
0
81
3.6
3.6
82
0
0
OPEN
83
0
0
OPEN
84
0
0
85
0
0
86
0
0
87
0
0
88
0
0
Summary of Contents for FT-8989
Page 2: ...CORDLESS TELEPHONE SERVICE MANUAL FILE NO 2B0 9905 FT 8989 PUBLISHED IN JAPAN Sep 1999 ...
Page 11: ...9 BLOCK DIAGRAMS Base Unit Main ...
Page 12: ...10 Base Unit DSP ...
Page 13: ...11 Handset ...
Page 14: ...12 13 SCHEMATIC DIAGRAMS Base Unit Main ...
Page 15: ...14 15 Base Unit Key ...
Page 16: ...16 17 Handset ...
Page 34: ...35 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Page 35: ...36 Base Unit Key PCB ...
Page 36: ...37 Handset Main PCB ...
Page 37: ...38 39 WIRING DIAGRAMS Base Unit ...
Page 38: ...40 Handset ...
Page 66: ......
