Sampler And Sampling Oscillator Test Setup - HP 8560A Service Manual

Figure 10-2. Sampler and Sampling Oscillator Test Setup
24. At each combination, the frequency counter should measure a sampler IF of 100.2 MHz
table.) If the frequency counter does not read a sampler IF of 100.2 MHz, suspect the Al5
RF Assembly.
25. Reconnect W34 to A15A2Jl and W32 to A15JlOl.
26. If YTO unlocks only with certain center frequency and span combinations, terminate the
27.
Set the HP 8560A's
29. Move jumper A14J23 to the TEST position.
30. Disconnect W34 from A15A2Jl and measure the power of the signal at the end of W34.
31. If the power is less than -6.5 dBm, suspect W34, A7 LODA, or All YTO.
32. Move jumper A14J23 to the NORM position.
F R E Q U E N C Y C O U N T E R
FREOUENCY
STANDARD
E X T
T E S T C A B L E
A I 5'J 1 0 1
CENTER FREQ
and m to generate the unlock conditions.
SINGLE.
B N C C A B L E
S K 1 1 0 2