Tektronix 222 Operator's Manual page 163

222 DSO User's Reference Card
Top Panel Keys
Front Panel Controls
FRONT PANEL CONTROLS
1 . Turns the oscilloscope functions On and Off;
turns off automatically when not being used.
2. Selects from displayed menus. Button four is
the INlT button for SSEQ trigger mode.
3. Clears menus and stored waveform displays.
4. Selects CH 1 to respond to control changes.
Calls up the CH 1 input coupling menu (DC. GND,
AC, CH 1 OFF) on the second press. CH 1 OFF
may only be selected using the menu select
button.
5. Same as the CH
1
button but for CH 2.
6 . Outer knob sets VOLTSIDIV on selected
channel (5OV to 5 mV). lnner knob positions active
channel vertically and is the VAR knob when held
in and rotated.
7. Select Trig SLOPE ( + or -)
8. Calls up the Trig MODE menu (NORM, AUTO
LVL, AUTO BL, SSEQ).
9.
Calls up the Trig SOURCE menu (VERT, CH 1.
CH 2 , EXT).
10. Trigger indicator; triggered when on
11. Outer knob sets Trig LEVEL, lnner button auto
levels on the trigger signal when pressed.
12. Autoranges on the active channel signal(s)
when pressed. VOLTSIDIV, SECIDIV, vertical
position, and Trigger LEVEL are set.
13. Outer knob sets SECIDIV (20s to 50 ns), lnner
knob positions horizontally; it turns XI0 MAG on
and off when pressed.
NOTE: Menu callup buttons also scroll through
the menu selections when pressed repeatedly.
TOP PANEL KEYS
1. Halts the acquisition and calls upthe SAVE CHI
WV, SAVE CH2 WV, or SAVE XY WV menu to save
waveforms in nonvolatile memory.
2. Calls up the RECALL WVFRM menu to select
saved waveforms from nonvolatile memory for
display.
3. Calls up the setup SAVEIRECALL menu (SAVE,
RECALL, ERASE. ERASE ALL). Up to four
front-panel setups may be saved for iater recall.
Stored setups may be erased singly or all at once.
4. CallsuptheTRIG POS menu (PRE, MID, POST)
for STORE MODE trigger position.
5. Calls up the Acquisition Mode menu (NORM,
ENV, AVG, and CONT ENV).
6 . Switches between STORE (display frozen
between triggers) and NONSTORE (display
blanks between triggers).
7. Calls up the Display Mode menu (INV1, INV2,
X-Y, RO OFF).
8. Calls up the Auxiliary Functions menu. See the
Operators Manual for details.
Printed Oct, 1988 GTektronix, Inc 070-7099-00