— 22 —
Ref.
No.
Pin
STBY
TALK
Note
Note
Ref.
No.
Pin
STBY
TALK
Note
Note
1
3.2
3.2
2
3.2
3.2
3
2.7
2.7
4
0.7
0.6
5
2.7
2.7
6
2.7
2.7
7
3.1
3.1
8
5.1
5.1
9
0.0
GND
0.0
GND
10
3.5-0.0
DATA(PULSE)
3.5-0.0
DATA(PULSE)
11
0.0
GND
0.0
GND
12
2.7
2.7
IC1
13
5.2
Vcc
5.2
Vcc
14
2.7
2.7
15
2.7
2.7
16
0.5
3.7
17
0.5
3.7
18
2.7
2.7
19
2.7
2.7
20
2.7
2.7
21
0.5
0.6
22
2.7
2.7
23
2.7
2.7
24
2.7
2.7
1
0.0
0.0
IC2
2
0.0
0.0
3
0.0
GND
0.0
GND
4
3.6
3.6
1
3.9-2.5
X'TAL
3.9-2.5
X'TAL
2
3.1-2.3
X'TAL
3.1-2.3
X'TAL
3
2.6
2.9
4
3.3
Vcc
3.3
Vcc
5
2.2
2.4-2.0
6
2.2
2.2
7
2.2
2.2
IC3
8
3.4-3.2
3.4-3.2
9
0.9
0.9
10
0.9
0.9
11
2.1-0.8
1.5
12
0.5
0.8
13
3.2
0.0
14
0.0
0.0
15
0.0
GND
0.0
GND
16
1.9
2.1-1.7
1
3.7
COL00
3.7
COL00
2
3.7
COL01
3.7
COL01
3
3.7
COL02
3.7
COL02
IC4
4
3.7
COL03
3.7
COL03
5
3.7
COL04
3.7
COL04
6
2.7
INUSE_LED
0.2
INUSE_LED
7
0.0
ROW00
0.0
ROW00
Unit [V]
IC's
Unit [V]
E
2.8
INTERVAL
3.0
Q613
C
0.0
2.9
B
2.3
INTERVAL
2.2
E
0.0
GND
0.0
GND
Q614
C
2.3
2.4
B
0.0
0.0
E
0.0
0.0
Q616
C
3.6
3.8
B
0.0
0.0
E
0.0
0.0
Q617
C
0.0
0.0
B
0.0
0.0
Summary of Contents for FT-8981
Page 1: ...SERVICE MANUAL PUBLISHED IN JAPAN May 2001 FILE NO 2B0 200104 FT 8981 CORDLESS TELEPHONE ...
Page 9: ... 8 BLOCK DIAGRAMS Base Unit ...
Page 10: ... 9 Handset ...
Page 12: ...Handset 12 13 FT8981 Sche p65 01 05 25 13 21 Page 9 Adobe PageMaker 6 5J Win ...
Page 27: ... 28 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Page 28: ... 29 Handset Main PCB ...
Page 29: ... 30 WIRING DIAGRAMS Base Unit ...
Page 30: ... 31 Handset ...
