HP 8560E - Page 455

454 Chapter8
IF Section
Cal Oscillator Assembly (P/O A4)
8. Press FULL IF ADJ. When the display reads ADJUSTING IF: 3
kHz, press
SINGLE on the HP 8566A/B.
9. Figure 8-17 on page 456 illustrates normal operation. Severe
failures (slope error greater than 30 percent) and subtle 3 kHz
resolution bandwidth errors (less than 30 percent) indicate a
problem with A4U802, A4U803, A4U804, or A4U106.
10.Severe failure of the bandwidth accompanied by subtle errors in the
output signal indicate an A5 failure.
11.Set the HP 8566A/B controls as follows:
Center frequency ............................................. 10.710MHz
Resolution bandwidth ..............................................10kHz
Video bandwidth .........................................................1kHz
Sweep time ...............................................................200ms
12.On the spectrum analyzer, press
FULL IF ADJ. When the message IF
ADJUST STATUS:1 kHz RBW appears, press
SINGLE on the HP
8566A/B.
13.Figure 8-18 on page 457 illustrates normal operation. Severe
failures (slope error greater than 30%) and subtle 3 kHz resolution
bandwidth errors (less than 30%) indicate a problem with A4U802,
U803, U804, or U106.
14.On the spectrum analyzer, press
FULL IF ADJ. When the message IF
ADJUST STATUS: 300 Hz RBW appears, press
SINGLE on the HP
8566A/B.
15.Figure 8-19 on page 458 illustrates normal operation. Severe
failures (slope error >30%) and 3 kHz resolution bandwidth errors
(less than 30%) indicate a problem with A4U802, U803, U804, or
U106.
16.Reconnect W52 (white) to A4J8.