Location Of A4A8 21.4 Mhz Lc Filter And Attenuation - HP 8566B Adjustment Manual

for satisfactory signal symmetry, increase or decrease value of
22. All crystal filter bypass networks are removed. Signal should be
centered and symmetrical. If not, go back to step 14 and repeat
adjustments.
[
23. Press MARKER
PEAK SEARCH
(
24. Key in
FREQUENCY SPAN
25. Adjust A4A4R49 XTAL to align markers on display. MARKER
A level should indicate 1.00 X. See Figure 3-42 for location of
adjustment.
Disconnect cable 97 (white/violet) from A4A6Jl and reconnect
26.
cable to A4A8Jl. Reconnect cable 89 (gray/white) to A4A6Jl.
27. Key in (jj] 100 kHz and
28. Press
LEVEL
approximately two divisions down from the top graticule line.
29. Adjust A4A8C32 LC CTR and A4A8C46 LC CTR for maximum
MARKER level as indicated by CRT annotation. See Figure 3-43
for location of adjustments. If unable to adjust A4ASC32 and
increase or decrease value of A4A8C35 and A4A8C49. Refer to
A t t e n u a t o r B a n d w i d t h F i l t e r

Location of A4A8 21.4 MHz LC Filter and Attenuation

30. Key in (j-1 1 MHz and (j-1 2 MHz, MARKER
( ] and MARKER la].
PEAK SEARCH
31. Key in (REs) 100 kHz, (j-1 200 kHz, and MARKER
8. 21.4 MHz Bandwidth Filter Adjustments
)
and MARKER Ln].
)
20 kHz, (RES] 3 kHz, and MARKER
(
FREQUENCY SPAN
_) and adjust DATA knob to place signal peak
Figure 3-43.
Adjustments
]
200 kHz.
Adjustments 3-95