— 27 —
Ref.
No.
Pin
STBY
TALK
Note
Note
9
0.0
GND
0.0
GND
10
2.9-0.0
DATA(PULSE)
3.0-0.1
DATA(PULSE)
11
0.0
GND
0.0
GND
12
1.5
1.5
13
3.0
Vcc
3.0
Vcc
14
1.5
1.5
15
1.5
OPEN
1.5
OPEN
IC602
16
0.0
2.9
17
0.0
2.9
18
2.8
OPEN
2.8
OPEN
19
1.1
OPEN
1.2
OPEN
20
1.5
1.5
21
0.9
0.6
22
1.5
1.5
23
1.5
1.5
24
1.5
1.5
1
3.5-2.3
OSC
3.4-2.6
OSC
2
2.8-2.1
OSC
2.8-2.2
OSC
3
2.8
2.9-2.4
4
3.0
Vcc
3.0
Vcc
5
1.9
2.2-1.8
6
1.9
2.0
7
1.9
2.0
IC603
8
3.0
2.2-2.0
9
1.8-0.2
2.2-0.6
10
0.8
0.9
11
2.2-0.6
1.8-1.6
12
0.5
0.8
13
2.9
0.0
14
0.0
OPEN
0.0
OPEN
15
0.0
GND
0.0
GND
16
1.9
1.9
1
3.2
3.2
2
3.8
Vbatt
3.8
Vbatt
IC606
3
0.0
GND(digital)
0.0
GND(digital)
4
3.8
Vbatt
3.8
Vbatt
5
3.2
3.2
1
2.8
2.8
2
0.0
GND
0.0
GND
IC607
3
1.2
1.3
4
3.0
3.0
5
3.8
Vbatt
3.8
Vbatt
1
2.8
2.9
2
0.0
OPEN
0.0
OPEN
3
0.0
0.0
4
0.0
0.0
IC608
5
0.0
0.0
6
0.0
0.0
7
0.0
0.0
8
0.0
OPEN
0.0
OPEN
9
0.0
OPEN
0.0
OPEN
10
2.9
3.0
11
2.9
Vcc
2.9
Vcc
12
0.0
GND(digital)
0.0
GND(digital)
13
0.0
GND(digital)
0.0
GND(digital)
14
3.2
3.2
15
3.2
3.2
16
0.0
GND(digital)
0.0
GND(digital)
17
2.9
2.9
18
0.0
GND(digital)
0.0
GND(digital)
19
2.9
2.9
20
0.0
GND(digital)
0.0
GND(digital)
21
0.0
GND(digital)
0.0
GND(digital)
22
1.7-0.4
OSC
1.7-0.5
OSC
23
2.6-0.1
OSC
2.6-0.1
OSC
24
0.0
GND(digital)
0.0
GND(digital)
25
0.0
OPEN
0.0
OPEN
26
0.0
DATA(PULSE)
2.9-0.0
DATA(PULSE)
27
0.0
0.0
28
0.0
2.8
29
0.0
DATA(PULSE)
2.9-0.0
DATA(PULSE)
30
0.0
2.9
31
0.0
2.9
32
0.0
OPEN
0.0
OPEN
33
0.0
OPEN
0.0
OPEN
34
0.0
OPEN
0.0
OPEN
IC608
35
2.9
2.9
36
0.0
OPEN
0.0
OPEN
37
0.0
OPEN
0.0
OPEN
38
3.2
3.2
39
0.0
OPEN
0.0
OPEN
40
0.0
OPEN
0.0
OPEN
41
0-3.8
3.8
SQ_IN
42
2.8
2.9
43
0.0
0.0
44
3.0
0.1
45
0.0
OPEN
0.0
OPEN
46
2.9-0.0
DATA(PULSE)
0.0
DATA(PULSE)
47
2.9-0.0
DATA(PULSE)
0.0
DATA(PULSE)
48
2.9-0.0
DATA(PULSE)
2.9
DATA(PULSE)
49
0.0
GND(digital)
0.0
GND(digital)
50
0.0
2.9
51
0.0
DATA(PULSE)
2.9-0.0
DATA(PULSE)
52
0.0
DATA(PULSE)
2.9-0.0
DATA(PULSE)
53
0.0
0.0
54
0.0
2.9
55
2.9-0.2
DATA(PULSE)
3.0-0.2
DATA(PULSE)
56
2.9
Vcc
2.9
Vcc
57
0.0
Ref OSC
2.8-0.1
Ref OSC
58
0.0
0.0
59
0.0
0.0
60
0.8
1.0
Unit [V]
Unit [V]
Ref.
No.
Pin
STBY
TALK
Note
Note
Содержание FT-8901A
Страница 1: ...SERVICE MANUAL PUBLISHED IN JAPAN Oct 2001 FILE NO 2BO 200113 FT 8901A CORDLESS TELEPHONE ...
Страница 9: ...BLOCK DIAGRAMS Base Unit 8 ...
Страница 10: ... 9 Handset Unit ...
Страница 11: ...RF Section SCHEMATIC DIAGRAMS Base Unit 10 11 FT8901A Sche p65 01 10 15 10 42 Page 8 Adobe PageMaker 6 5J Win ...
Страница 12: ...Base Key Unit 12 13 FT8901A Sche p65 01 10 15 10 42 Page 9 Adobe PageMaker 6 5J Win ...
Страница 13: ...Handset Unit 14 15 RF Section FT8901A Sche p65 01 10 15 10 42 Page 10 Adobe PageMaker 6 5J Win ...
Страница 26: ... 28 Unit V Ref No Pin STBY TALK Note Note 61 2 9 2 9 IC608 62 2 9 2 9 63 2 9 2 9 64 2 9 2 9 ...
Страница 29: ... 31 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Страница 30: ... 32 Base Unit Key PCB ...
Страница 31: ... 33 Handset Unit Main PCB ...
Страница 32: ... 34 WIRING DIAGRAMS Base Unit ...
Страница 33: ... 35 Handset Unit ...
