7-8 Adjustments 8525B/8528 Technical Service Manual
Issue 6 Publication No: 15-02036
7. Adjust L29 and C64 (second and fourth holes from left-transceiver
facing toward operator) for maximum amplitude of the displayed
waveform.
8. Set the transceiver to receive and repeat steps (1) to (5) of 7.3.5.
9. Adjust C58 and L32 (extreme left and third hole from left) for
maximum signal on the audio voltmeter.
10. DISCONNECT THE SIGNAL GENERATOR FROM ANTENNA
SOCKET.
11. Switch the transceiver to transmit.
12. Ensure the two-tone signal is applied to the input and observe the
amplitude of the waveform displayed on the CRO:
• If the amplitude is below 200mV pp return to step (7) and repeat
the procedure.
• If the amplitude is greater than 200mV pp, disconnect the dual coax
socket from the PA and Filter PCB and confirm that the amplitude
increases to at least 400mV pp.
13. Reconnect the dual coaxial socket.
To Next Page
Loading...
Need help?
General
