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25. Adjust A4A7C13 PK for maximum peak-to-peak signal on Channel
2 display. See Figure 3-39 for location of adjustment. If unable to
achieve a "peak" in signal amplitude, increase or decrease value
of A4A7C12. Refer to Table 3-3 for range of values.
3 M H z B a n d w i d t h F i l t e r
Figure 3-39. Location of 3 MHz Peak Adjustments
26. Move Channel 2 probe to A4A7TP3 (left side of C32 SYM).
27. Adjust frequency synthesizer output frequency to peak Channel 1
display.
28. Adjust A4A7C22 PK for maximum peak-to-peak signal on Channel
2 display. See Figure 3-39 for location of adjustment. If unable to
achieve a "peak" in signal amplitude, increase or decrease value
of A4A7C21. Refer to Table 3-3 for range of values.
29. Move Channel 2 probe to A4A7TPl (left side of C41 SYM).
30. Adjust frequency synthesizer output frequency to peak Channel 1
display.
31. Adjust A4A7C31 PK for maximum peak-to-peak signal on Channel
2 display. See Figure 3-39 for location of adjustment. If unable to
achieve a "peak" in signal amplitude, increase or decrease value
of A4A7C30. Refer to 'Iable 3-3 for range of values.
32. Disconnect Channel 2 probe from A4A7TPl.
33. Adjust frequency synthesizer output frequency to peak Channel 1
display.
34. Adjust
[
REFERENCE
CRT graticule line.
35. Adjust A4A7C40 PK for maximum signal amplitude on the CRT
display. See Figure 3-39 for the location of adjustment. If unable
to achieve a "peak" in signal amplitude, increase or decrease
value of A4A7C39. Refer to Table 3-3 for range of values.
36. Disconnect Channel 1 probe from A4A7TP7. Disconnect
'frequency synthesizer output from A4A8Jl and reconnect cable
97 (white/violet).
7. 3 MHz Bandwidth Filter Adjustments
using step keys to place signal near top
Adjustments 3-75
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