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
2.4
2.4
2
0.0
0.0
3
0.0
2.4
4
5.0
2.5
5
0.0
5.0
6
0.0
0.0
IC2
7
0.0
0.0
GND
8
5.0
5.0
9
0.0
0.0
10
2.0
2.0
11
0.0
0.0
12
0.0
0.0
13
0.0
0.0
14
5.0
5.0
VCC
1
2.0
2.0
2
2.0
2.0
3
2.0
2.0
IC3
4
0.0
0.0
GND
5
2.0
2.0
6
2.0
2.0
7
2.0
2.0
8
5.0
5.0
VCC
1
2.7
2.7
2
2.7
2.7
3
2.5
2.5
4
0.7
0.7
5
2.5
2.5
OPEN
6
2.5
2.5
7
2.7
2.7
8
4.9
4.9
OPEN
9
0.0
0.0
GND
IC4
10
0.2-4.9
0.2-4.9
PULSE
11
0.0
0.0
GND
12
2.5
2.5
13
5.0
5.0
VCC
14
2.5
2.5
15
2.5
2.5
OPEN
16
0.0
5.0
17
0.0
5.0
18
0.0
4.8
OPEN
19
1.6
1.6
OPEN
20
2.5
2.5
21
0.7
0.7
22
2.5
2.5
IC4
23
2.5
2.5
24
2.5
2.5
1
1.0
0.6
IC5
2
1.0
0.6
3
0.0
0.0
GND
4
4.9
4.9
1
2.0
2.0
2
0.0
1.9
3
0.0
0.0
4
2.0
2.0
5
0.0
0.0
6
0.0
0.0
IC6
7
0.0
0.0
GND
8
0.0
0.0
9
2.0
2.0
10
0.0
0.0
11
5.0
5.0
12
0.0
0.0
13
0.0
5.0
14
5.0
5.0
VCC
1
2.0
2.0
2
2.0
2.0
3
2.0
2.0
IC7
4
0.0
0.0
GND
5
2.0
2.0
6
2.0
2.0
7
2.0
2.0
8
5.0
5.0
VCC
1
0.0
0.0
2
5.0
5.0
3
0.0
0.0
4
2.4
2.4
5
0.0
0.0
6
0.0
0.0
IC8
7
0.0
0.0
GND
8
0.0
0.0
9
2.3
2.3
10
2.0
2.0
11
0.0
0.0
12
0.0
0.0
13
0.0
0.0
14
5.0
5.0
VCC
Summary of Contents for FT-8259
Page 1: ...CORDLESS TELEPHONE PUBLISHED IN JAPAN Sep 1999 SERVICE MANUAL FILE NO 2B0 9906 FT 8259 ...
Page 8: ...7 BLOCK DIAGRAMS Base Unit ...
Page 9: ...8 Handset ...
Page 10: ...9 10 SCHEMATIC DIAGRAMS Base Unit Main ...
Page 11: ...11 Base Unit Key ...
Page 12: ...12 13 Handset ...
Page 31: ...32 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Page 32: ...33 Base Unit Key PCB ...
Page 33: ...34 Handset Main PCB ...
Page 34: ...35 36 WIRING DIAGRAMS Base Unit ...
Page 35: ...37 Handset ...
Page 38: ...40 Handset 7 8 4 1 16 17 17 5 10 15 11 12 2 9 6 13 14 3 17 MAIN PCB ASSY RF MODULE HANDSET ...
Page 60: ......
