Tektronix 2245A - 500 Khz Trigger Sensitivity; Khz Trigger Sensitivity

Performance Check Procedure
NOTE
The TRIGGER LEVEL control may be used to obtain a stable dis
play.
e. CHECK—that the display Is stably triggered with DC, HF REJ, and AC
Trigger CPLG; and that the display will not trigger on NOISE REJ or LF
REJ Trigger CPLG.
f. Set:
Horizontal MODE
TRIGGER CPLG
A/B SELECT
B TRIGGER MODE
B TRIGGER SOURCE
B TRIGGER SLOPE
B SEC/DIV
DELAY Time
B INTEN
B
DC
B Trigger
NORM
VERT
_ y (positive-going)
0.5 ms
?0.000 (minimum delay time)
For viewable display
NOTE
It may be necessary to adjust the TRIGGER LEVEL control to ob
tain a display.
g. CHECK—that, using the Trigger LEVEL control the display can be
stably triggered in DC, HF REJ, and AC Trigger CPLG; and that the
display cannot be triggered in NOISE REJ or LF REJ Trigger CPLG.
h. Disconnect the test setup from the CH 1 Input.
2. 500 kHz Trigger Sensitivity
a. Set:
SCOPE BW
Horizontal MODE
A/B SELECT
A SEC/DIV
Off
A
A Trigger
2 p.S
b. Connect leveled sine-wave generator (SG 503) output to the CH 1 In
put via a 50 XI BNC coaxial cable and a 50 XI BNC termination.
2245A Operators
7-29