— 49 —
Unit [V]
Symbol
No.
Pin
TX
WX
RX
Comment
PA
Mode
Pin
E
0.0
0.0
0.0
0.0
Q304
C
2.5
2.5
2.5
2.5
B
0.7
0.7
0.7
0.7
E
0.8
0.8
0.8
0.8
Q305
C
5.5
5.5
5.5
5.5
B
1.4
1.4
1.4
1.4
E
0.7
0.0
0.0
0.0
Q306
C
0.8
5.0
5.0
5.0
B
1.4
0.0
0.0
0.0
E
0.0
0.0
0.0
0.0
Q401
C
5.0
5.0
5.0
5.0
B
0.0
0.0
0.0
0.0
E
8.0
8.0
8.0
8.0
Q402
C
7.8
0.0
0.0
0.0
B
7.0
7.9
7.9
7.9
E
4.0
4.0
4.2
4.0
CB:20CH,WX:4CH
Q404
C
2.5-4V Switching Pulse
B
3-4V Switching Pulse
E
4.0
4.0
4.2
4.0
CB:20CH,WX:4CH
Q405
C
0-4V Switching Pulse
B
3-4V Switching Pulse
E
0.0
0.0
0.0
0.0
Q406
C
0.1
7.9
7.9
7.9
B
0.7
0.0
0.0
0.0
E
4.1
4.1
4.2
4.1
CB:20CH,WX:4CH
Q407
C
5.7
5.7
6.2
5.7
B
4.8
4.8
4.8
4.8
E
2-5V Switching Pulse
Q408
C
0-2V Switching Pulse
B
1-5V Switching Pulse
E
2-5V Switching Pulse
Q409
C
0-2V Switching Pulse
B
1-5V Switching Pulse
E
2-5V Switching Pulse
Q410
C
0-2V Switching Pulse
B
1-5V Switching Pulse
E
2-5V Switching Pulse
Q411
C
0-2V Switching Pulse
B
1-5V Switching Pulse
E
2-5V Switching Pulse
Q412
C
0-2V Switching Pulse
B
1-5V Switching Pulse
E
2-5V Switching Pulse
Q413
C
0-2V Switching Pulse
B
1-5V Switching Pulse
E
2-5V Switching Pulse
Q414
C
0-2V Switching Pulse
B
1-5V Switching Pulse
E
0.0
0.0
0.0
0.0
Q501
C
9.6
13.5
13.5
13.5
B
-0.3
0.0
0.0
0.0
Summary of Contents for TRC-447
Page 5: ...5 BLOCK DIAGRAM...
Page 16: ...16 WIRING DIAGRAM...
Page 17: ...17 PRINTED CIRCUIT BOARDS Main Top View...
Page 18: ...18 Bottom View...
Page 19: ...19 SWITCH VOLUME LED MIC CH SW SWR PCBs Top View Bottom View...
Page 21: ...21 5 13 20 1 21 9 10 26...
Page 22: ...22 12 11 18 23 24 25 19 18 20 3 20 9 20 5 20 10 20 11 20 3 20 12 20 13 20 14 20 12...
Page 50: ...51 50 SCHEMATIC DIAGRAMS 21 1576 Main PCB...
Page 51: ...52 SWITCH VOLUME LED MIC CH SW SWR PCBs 21 1576...
Page 52: ...RadioShack Corporation Fort Worth Texas 76102 21 1576 04A04 Printed in Japan...
