Tektronix 7D20 Operator's Manual page 55

Op erating I nstructi ons-7D 20
So that you may start at any of the 12 Get-Acquainted Exercises, the Initialization
feature has been used as necessary to set front-panel control settings to a known
state by a single selection of INIT FRONT PANEL from the UTILITIES menu (refer to
the list of predetermined settings in the Detailed Operating Instructions under Menu
Functions . Under normal applications it is not necessary to use the Initialization
feature, but it may be helpful .
These four keys (see Fig . 2-15) control the way your 7D20 acquires signals for
digitizing . These are mutually exclusive functions so only one can be selected at any
one time . Upon initialization, the 7D20 is set to acquire signals present at the CH 1
input connector as indicated by the illumination of the CH 1 AOR MODE key .
Connect the 1 kHz 4 V P-P sine wave to channel 1 and connect the trigger output
(square wave) from your signal generator, if so equipped, to channel 2 . If a trigger
signal is not available, choose some other time related signal . Initialize the 7D20
using the UTILITIES menu . Select 2 volts/div on Channels 1 and 2 .
EXERCISE 2
USING THE AaR (ACQUIRE) MODE
Figure 2- 1 5 . AOR MODE keys.