Tektronix 222 Operator's Manual page 58

222 DSO Operators-How It Works
4.17 TRIGGER MODE SEITING
Press the Trigger
button to display the TRlG MODE menu.
The selected mode is boxed in the menu display.
OR
See
TRIG MODE: NORM
Press the
IYO"' I
button repeatedly to cycle through the choices
while the menu is displayed. The menu will remain displayed.
Press to remove the menu display when the desired Trig-
ger MODE is selected.
Press NORM-, AUTO LVL-, AUTO B L ~ ,
or
S S E ~
button to select that mode directly. The menu
clears when the selection is made.
NOTE
Use either NORM or SSEG Trigger MODE when AVG
or CONT ENV acquisition mode is in effect for SEC/
DIV settings of 0.1 sec and slower. AVG and CONT
ENV acquisition display do not scroll; a complete
record is obtained before the waveform is updated. If
the acquisition is untriggered (AUTO LVL and AUTO
BL in ROLL mode), the data obtained with each
update will be different.
Section 6, para. 6.6, for a description of the different trigger
modes.
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