27
CNTL Unit
Circuit Diagram
5.0 V
RX: 4.8 V
TX: 0.6 V
4.8 V
RX: 4.8 V
TX: 0.6 V
5.0 V
0 V
0 V
0 V
2.6 V
2.6 V
2.3 V
0 V
5.0 V
5.0 V
0 V
0 V
5.0 V
1.8 V
5.0 V
4.9 V
0 V
5.6 V
0.6 V
1.2 V
5.0 V
2.5 V
3.9 V
5.0 V
3.6 V
5.0 V
3.6 V
4.0 V
8.0 V
3.4 V
0 V
0 V
0 V
4.6 V
5.0 V
RX: 13.1 V
TX: 11.9 V
RX: 13.8 V
TX: 12.6 V
RX: 4.9 V
TX: 4.5 V
0 V
0 V
Ú
Ú
J2003
Pin
RX
TX
1
4.6 V
4.6 V
2
0 V
0 V
3
0 V
0 V
4
0 V
0 V
5
0 V
0 V
6
0 V
0 V
7
0 V
0 V
8
1.9 V
1.8 V
9
3.0 V
3.0 V
10
5.0 V
0.6 V
11
1.1 V
0 V
12
3.2 V
0 V
13
4.9 V
4.9 V
14
0 V
0 V
15
8.0 V
8.0 V
16
0.6 V
0 V
17
0 V
0 V
18
0 V
0 V
19
---
---
20
5.0 V
5.0 V
21
---
---
22
---
---
23
---
---
24
13.8 V
12.3 V
25
---
---
26
---
---
27
0 V
0 V
28
0 V
0 V
29
0 V
0 V
30
13.8 V
12.4 V
31
3.1 V
3.1 V
32
0 V
0 V
Summary of Contents for FT-1900R
Page 4: ...4 Note...
Page 5: ...5 Block Diagram...
Page 6: ...6 Connection Diagram...
Page 14: ...14 MAIN Unit Note...
Page 26: ...26 MAIN Unit Note...
Page 32: ...32 Note CNTL Unit...
Page 33: ...33...
