Tektronix 465B

Calibration Procedure—
465B Service
Adjustment Procedure
c. CHECK—Display can
be
triggered
by adjusting the
A TRIGGER LEVEL control.
d.
Set the A TRIG
MODE switch to NORM.
e. CHECK—Display
is
triggered.
f. Set the CH 1 AC-GND-DC switch
to GND.
g.
CHECK—
No
display
is visible.
21. Check AUTO Recovery
Time
a.
Set:
CH 1 AC-GND-DC
DC
A TRIG
MODE
AUTO
b. CHECK—Display is triggered.
c. Set the time-mark
generator for 0.5
s time markers.
d. CHECK—Display
cannot
be
triggered
(free runs).
e.
Disconnect the
time-mark generator