Tektronix 2205, Руководство оператора

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Operation
Table 2-1 (cont’d)
No. Title Function
Recom m ended Use
20 PROBE
ADJUST
Provides approxi­
mately 0 .5 -V ,
1-kHz square
wave.
Allows user to adjust
compensation of 10X
probe. This source may
be used to check the
basic functioning of
vertical and horizontal
circuits but Is not In­
tended to check their
accuracy.
21
lb
(Ground
Receptacle)
Provides safety
ground and direct
connection to
signal source.
Chassis ground
connection.
22 SLOPE
Selects the slope
of the signal that
triggers the sweep.
Provide ability to trigger
from positive-going or
negative-going signals.
23 LEVEL Select trigger-
signal amplitude
point.
Select actual point of
trigger.
24 TRIG’ D
READY
Indicator lights
when sweep Is
triggered In P-P
AUTO, NORM, or
TV FIELD. In
Single Sweep
mode, Indicates
trigger is armed.
Indicate trigger state.
25 MODE P-P AUTO/TV
LINE triggers from
waveforms and
television lines
having repetition
rates of at least
20 Hz. NORM
triggers from ade­
quate signal, with
no trace In ab­
sence of trigger
signal. TV FIELD
triggers from TV
field signals; trig­
ger polarity must
be observed. SGL
SWP triggers
sweep only once
when armed by
RESET button;
used for displaying
or photographing
nonrepetitlve or
unstable signals.
Select trigger mode.
2-4
2205 Operator’s