Tait TM8000 Series Service Manual page 226

Figure 9.26 Components of the interstage matching circuitry between the PA driver Q306 and the
PAs Q309 and Q310 (D1 band)
Q310
Q309
D1 BAND
Table 9.8 RF voltages along the initial RF signal path of the VHF radio (B1 band)
Power level Frequency
(W) (MHz)
1 136
155
174
5 136
155
174
12 136
155
174
26 136
155
174
40 136
155
174
226 Diagnosis of Faults on Main Board
PAF TOP CAN
Synthesizer Buffer
output output
0.3 ± 0.1 0.2 ± 0.1
0.3 ± 0.1 0.3 ± 0.1
0.2 ± 0.1 0.2 ± 0.1
0.3 ± 0.1 0.2 ± 0.1
0.2 ± 0.1 0.3 ± 0.1
0.2 ± 0.1 0.2 ± 0.1
0.3 ± 0.1 0.2 ± 0.1
0.2 ± 0.1 0.3 ± 0.1
0.2 ± 0.1 0.3 ± 0.1
0.3 ± 0.1 0.2 ± 0.1
0.2 ± 0.1 0.3 ± 0.1
0.2 ± 0.1 0.3 ± 0.1
0.3 ± 0.1 0.4 ± 0.1
0.2 ± 0.1 0.4 ± 0.1
0.3 ± 0.1 0.3 ± 0.1
Q306
PAD TOP CAN
RF voltages (V)
Exciter
output
2.4 ± 0.5
2.5 ± 0.5
2.6 ± 0.5
2.5 ± 0.5
2.6 ± 0.5
2.6 ± 0.5
2.5 ± 0.5
2.6 ± 0.5
2.7 ± 0.5
2.4 ± 0.5
2.4 ± 0.5
2.5 ± 0.5
2.5 ± 0.5
2.5 ± 0.5
2.5 ± 0.5
TM8100 Mobile Radio Service Manual
May 2004 © Tait Electronics Limited
Driver
output
1.8 ± 0.5
1.0 ± 0.5
1.5 ± 0.5
3.0 ± 0.5
1.5 ± 0.5
2.6 ± 0.5
4.2 ± 0.5
2.0 ± 0.5
3.8 ± 0.5
3.3 ± 0.5
1.7 ± 0.5
4.5 ± 0.5
8.2 ± 0.5
5.5 ± 0.5
7.7 ± 0.5