Cntl Unit Circuit Diagram - Yaesu FT-2900R Technical Supplement

Fm transceiver
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Q 2001
Pin
RX
TX
Note
43
0.0 V
4.0 Vp-p TONE ON
44
0.0 V
5.0 Vp-p DCS ON
47
4.9 V
4.9 V
48
4.9 V
4.9 V
49
2.9 V
2.9 V
50
2.0 V
2.0 V
51
1.3 V
0.0 V
52
0.4 V
0.0 V
53
5.0 V
5.0 V
54
5.0 V
5.0 V
55
0.0 V
3.0 Vp-p
59
5.0 V
5.0 V
68
5.0 V
5.0 V
69
5.0 V
5.0 V
70
0.0 V
0.0 V
71
5.0 V
5.0 V
72
0.0 V
0.0 V
73 5.0 Vp-p
0.0 V
BEEP
75
0.0 V
0.0 V
76
4.8 V
0.7 V
77
4.8 V
0.7 V
81
4.8 V
4.8 V
82
4.8 V
4.8 V
6.0 V (6.0 V)
2.3 V (2.3 V)
5.0 V (5.0 V)
5.0 V (5.0 V)
4.9 V (4.9 V)
1.9 V (1.9 V)
1.3 V (1.3 V)
3.5 V (3.5 V)
5.0 V (5.0 V)
3.8 V (3.8 V)
3.3 V
(3.3 V)
5.0 V (5.0 V)
3.3 V (3.3 V)
3.8 V (3.8 V)
13.2 V (12.9 V)
5.0 V (5.0 V)
CNTL Unit
Circuit Diagram
5.0 V (5.0 V)
5.0 V (5.0 V)
RX (TX)
27

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