Radio Shack TRC-447 Service Manual page 48

TRANSISTORS
Symbol
Pin Pin
No.
TX RX
E 0.9 0.8
Q1 C 7.5 7.5
B 1.6 1.2
E 1.7 0.8
Q2 C 7.7 7.2
B 1.6 1.3
E 0.0 0.0
Q3 C 7.6 7.6
B 0.7 0.7
E 0.0 0.0
Q4 C 2.3 2.3
B 0.7 0.7
E 1.7 1.7
Q5 C 7.1 7.1
B 2.3 2.3
E 0.0 0.0
Q6 C 0.0 0.0
B 0.7 0.7
E 0.0 0.0
Q7 C 4.2 4.2
B 0.7 0.7
E 0.0 0.0
Q8 C 0.0 0/5.0
B 0.7 0.7/0
E 0.0 0.0
Q9 C 6.3 6.3/0
B 0.2 0.2/0.7
E 0.0 0.0
Q10 C 0.0 0.0
B 0.7 0.7
E 0.0 0.0
Q11 C 0.0 0/0.9
B 0.7 0.7
E 0.0 0.0
Q12 C 0.0 0.0
B 0.7 0.0
E 0.0 0.0
Q13 C 0.1/1.9 0.1/1.7
B 0.7/0.6 0.7/0.7
E 6.3/1.2 6.3/1.2
Q14 C 7.6/7.3 7.6/7.3
B 0.1/2.0 0.1/1.7
E 8.0 8.0
Q15 C 7.7 7.7
B 7.2 7.2
E 0.0 0.0
Q16 C 0.9 0.9
B 0.6 0.6
E 7.6 7.6
Q17 C 0.0 0.0
B 7.6 7.6
Unit [V]
Mode
Comment
WX PA
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
0.0 0.0
0.0 0.0
0.7/0 0.7 WX OFF/1mV
0.0 0.0
4.2 4.2
0.7 0.7
0.0 0.0 SQ OPEN/CLOSE
0.0 0.0
0.7 0.7
0.0 0.0
6.3 6.3
0.0 0.0
0.0 0.0
0.0 0.0
0.7 0.7
- -
- - RX OFF/1mV
- -
0.0 0.0
0.0 0.0
0.7 0.7
- - NB OFF/ON
- -
- -
- -
- -
- -
8.0 8.0
0.0 0.0
8.0 8.0
- -
- -
- -
- -
- -
- -
Symbol
Pin Pin
No.
TX
E 0.0
Q18 C 0.0
B 0.0
E 0.0
Q101 C 2.7
B 0.6
E 2.6
Q102 C 3.9
B 3.2
E 0.0
Q103 C 3.5
B 0.6
E 0.0
Q104 C 3.3
B 0.7
E 0.0
Q201 C 12.0
B 0.0
E 1.8
Q202 C 7.5
B 2.3
E 0.1
Q203 C 6.4
B 0.9
E 0.0
Q204 C 0.0
B 0.0
E 3.5
Q205 C 0.2
B 3.4
E 0.7
Q206 C 5.8
B 1.3
E 0.0
Q207 C 7.9
B 0.0
E 8.0
Q208 C 0.0
B 7.9
E 0.0
Q209 C 0.0
B 0.0
E 0.1
Q301 C 4.4
B 0.8
E 2.3
Q302 C 6.1
B 3.1
E 0.0
Q303 C 0.0
B 0.7
— 48 —
Mode
Comment
RX WX PA
0.0 - -
0.0 - -
0.0 - -
0.0 0.0 0.0
2.7 2.7 2.7
0.6 0.6 0.6
2.6 2.6 2.6
3.9 3.9 3.9
3.2 3.2 3.2
0.0 0.0 0.0
3.5 3.5 3.5
0.8 0.8 0.8
0.0 0.0 0.0
3.3 3.3 3.3
0.7 0.7 0.7
0.0 - -
13.6 - -
0.0 - -
0.0 - -
0.0 - -
0.0 - -
0.0 - -
0.0 - -
0.0 - -
0.0 0.0 0.0
0.0 0.0 0.0
0.7 0.7 0.0
3.5 3.5 3.5
0.2 0.2 0.2
3.4 3.4 3.4
0.7 0.7 0.7
5.8 5.8 5.8
1.3 1.3 1.3
0.0 0.0 0.0
0.1 0.1 7.9
0.7 0.7 0.0
8.0 8.0 8.0
7.9 7.9 0.0
7.2 7.2 7.9
0.0 0.0 0.0
0.0 0.0 0.0
0.7 0.7 0.0
0.1 - -
4.6 - -
0.8 - -
2.3 - -
6.1 - -
3.1 - -
0.0 - -
7.6 - -
0.0 - -
Unit [V]