23
IC AND TRANSISTOR VOLTAGE CHART
Base Unit
Unit[V]
Unit[V]
Ref No.
PIN
STBY
TALK
NOTE
Ref No.
PIN
STBY
TALK
NOTE
1
4.0-5.5
3.6-5.1
CLK(SIN)
IC6
17
0.0 0.0
2
3.9-4.0
3.5-4.4
CLK(SIN)
18
2.4 2.3
3
4.3 3.6-4.1
--/(PULSE)
19
2.4 2.3
4
4.8 4.6
20
2.4 2.3
5
4.3 3.6-4.1
--/(SIN)
1
5.6 5.3
6
4.4 3.9
2
0.0 0.0 GND
7
4.4 4.0
IC11
3
1.2 1.2
IC1
8
4.8 4.4
4
3.0 3.0
9
1.2-2.5
1.4-1.9
5
5.6 5.3
10
0.6 0.6
IC15
1
1.9 1.9
11
0.4-1.0
0.7 2
1.8
1.8
12
0.7 0.8
3
1.9 1.9
13
4.7 0.0
4
0.0 0.0 GND
14
0.0 0.0
OPEN
5
1.9 1.9
15
0.0 0.0
6
1.9 1.9
16
4.8 4.5
7
1.9 1.8
IC3
1
1.6 1.0
8
4.8 4.6 V5
2
1.6 1.0
1
2.7 2.5
3
1.0 1.6
2
2.7 2.6
4
0.0 0.0 GND
3
2.4 2.2
5
1.0 1.6
4
0.7 0.6
6
1.0 1.9
5
2.4 2.3
7
1.0 1.6
6
2.4 2.2
8
4.8 4.5 V5
7
2.6 2.4
IC4
1
0.0 0.0
8
4.7 4.2
OPEN
2
0.0 0.0
9
0.0 0.0 GND
3
0.0 0.0 GND
10
0.1-4.7
0.1-4.4
(PULSE)
4
4.8 4.6
11
0.0 0.0 GND
1
2.4 2.3
IC18
12
2.4 2.2
2
2.4 2.3
13
4.3 4.8
3
2.4 2.3
14
2.4 2.2
4
2.4 2.3
15
2.4 2.2
OPEN
5
0.0 0.0 GND
16
0.0 4.3
6
0.0-5.0
0.0-4.8
CLK(SIN)
17
0.0 4.4
7
0.0-5.0
0.0-4.7
CLK(SIN)
18
4.6 4.1
OPEN
IC6
8
0.0 0.0 GND
19
1.7 1.6
OPEN
9
4.8 4.6
OPEN
20
2.4 2.2
10
4.8 4.6
21
0.6 0.6
11
4.8 4.6
22
2.4 2.2
12
0.0 0.0
23
2.4 2.2
13
0.0 0.0
24
2.4 2.2
14
4.8 4.6
1
4.9 4.6
VCPU
15
4.8 4.5 V5
IC22
2
0.0 0.0
OPEN
16
4.8 4.6 V5
3
0.0 0.0 GND
Summary of Contents for FT-8859
Page 2: ...CORDLESS TELEPHONE SERVICE MANUAL FILE NO 2B0 9907 FT 8859 PUBLISHED IN JAPAN Oct 1999 ...
Page 11: ...9 BLOCK DIAGRAMS Base Unit ...
Page 12: ...10 Handset Unit ...
Page 13: ...11 12 SCHEMATIC DIAGRAMS Base Unit Main ...
Page 15: ...14 15 Handset ...
Page 30: ...30 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Page 31: ...31 Base Unit Key PCB ...
Page 32: ...32 Handset Main PCB ...
Page 33: ...33 34 WIRING DIAGRAMS Base Unit ...
Page 34: ...35 Handset ...
Page 57: ......
