HP 54501A Service Manual page 32

HP 54501A PERFORMANCE TESTS
6 .
Slowly decrease Signal Generator output amplitude while adjusting HP 54501 A trigger level
for stable display .
a.
Press front-panel TRIG key.
b.
Adjust trigger level with knob or ENTRY keys .
7 .
Stable triggering should be possible down to at least 0.8 divisions of vertical amplitude .
8 .
Change Signal Generator output for approximately 50 MHz, and increase amplitude for about
8 divisions of vertical amplitude on HP 54501A .
9 .
Set HP 54501A TIMEBASE for 10ns/div .
a. Press front-panel TIMEBASE key .
b .
Select 10 ns/div with knob or softkey .
10 .
Slowly decrease Signal Generator output amplitude while adjusting HP 54501A trigger level
for stable display .
11 .
Stable triggering should be possible down to 2 divisions of vertical amplitude .
12.
Set HP 54501A vertical sensitivity to 200 mV/div .
13.
Change Signal Generator output to 10 MHz and output amplitude level for approximately 8
divisions of vertical amplitude on HP 54501A .
14 .
Slowly decrease Signal Generator amplitude while adjusting HP 54501A trigger level to main-
tain a stable display .
15 .
Stable triggering should be possible down to 0 .4 division of vertical amplitude .