28
Unit[V]
Unit[V]
89
0
0
90
0
0
91
0
0
92
0
0
GND
93
3.6
3.6
IC202
94
3.6
3.6
95
3.6
3.6
96
0
0
OPEN
97
0
0
98
0
0
OPEN
99
3.0
3.0
100
0.0
0.0
1
3.6
3.6
2
3.6
3.6
3
0
0
4
0
0
5
0
0
6
3.6
3.6
IC204
7
0
0
GND
8
3.6(AC)
3.6(AC)
9
3.1(AC)
3.1(AC)
10
3.1(AC)
3.1(AC)
11
3.6
3.6
12
0.4
0.4
13
0.4
0.4
14
3.6
3.6
1
3.6
3.6
IC207
2
5.0
5.0
3
0
0
GND
1
0
0
2
0
0
3
0
0
4
3.6
3.6
5
3.6
3.6
OPEN
6
0
0
OPEN
7
0
0
OPEN
IC208
8
0
0
OPEN
9
0
0
OPEN
10
0
0
OPEN
11
0
0
OPEN
12
0
0
OPEN
13
0
0
OPEN
14
0
0
OPEN
15
0
0
OPEN
Ref. No.
PIN
STBY
TALK
NOTE
Ref. No.
PIN
STBY
TALK
NOTE
16
0
0
17
0
0
18
0
0
19
0
0
20
0
0
GND
21
3.6
3.6
22
0
0
23
0
0
24
0
0
25
0
0
26
0
0
OPEN
IC208
27
0
0
OPEN
28
0
0
OPEN
29
0
0
OPEN
30
0
0
OPEN
31
0
0
OPEN
32
0
0
OPEN
33
0
0
OPEN
34
0
0
OPEN
35
0
0
OPEN
36
0
0
GND
37
0
0
GND
38
3.6
3.6
39
3.6
3.6
40
3.6
3.6
E
0.0
0.0
GND
Q1
C
1.9
1.9
B
0.7
0.7
E
0.6
0.6
Q2
C
2.9
2.9
B
1.2
1.2
E
0.6
0.6
Q3
C
4.0
3.9
B
1.3
1.33.29
E
3.3
3.2
Q4
C
0.0
0.0
B
3.3
0.0
E
0.0
0.0
Q5
C
0.0
0.0
B
0.0
0.0
E
0.0
0.0
GND
Q6
C
10.8
0.0
B
0.0
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: ......
