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Analog/Digital IF Troubleshooting
40 MHz BW IF Section
4. The analyzer marker should read 300 MHz at 10 dBm ± 3 dB as shown in 
Figure 6-16.
Figure 6-16  300 MHz LO
5. If the 300 MHz signal is not measuring the correct power level, see the 
A16 Reference Assembly troubleshooting section in this service guide. 
6. If the 300 MHz LO is measuring the correct power level and frequency and 
the 22.5 MHz signal is low, the most probable cause is the A2 Analog IF 
assembly.