Tektronix 2225

Tektronix 2225 Oscilloscope
1. Summary of Controls, Connectors, and Indicators
No.
Title Function Recommended Use
1
INTENSITY Adjusts trace brightness.
Compensate for ambient lighting,
trace s
p
eed
,
tri
gg
er fre
q
uenc
y
.
2 BEAM FIND
Compresses display to within CRT
limits.
Locate off-screen phenomena.
3 FOCUS Adjusts for finest trace thickness. Optimize display definition.
4
TRACE
ROTATION
Adjusts trace parallel to centerline. Compensate for earth's field.
5 POWER Turns power on and off. Control power to the instrument.
6 Power Indicator Illuminates when power is turned on. Know power condition.
7,9 POSITION Moves trace up or down screen.
Position trace vertically and
compensate for dc component of
si
g
nal.
8 TRACE SEP
Moves the magnified trace vertically
with respect to the unmagnified trace
when HORIZONTAL MODE is set to
ALT.
Position unmagnified and
horizontally magnified traces for
convenient viewing and
measurement.
10
CH 1-BOTH -
CH2
Selects signal inputs for display.
View either channel independently
or both channels simultaneousl
y
11 NORM- INVERT Inverts the Channel 2 signal display.
Provide for differential (CH 1 - CH 2)
or summed (CH 1 + CH 2) signals
when ADD is selected.