TDS 620A, 640A, & 644A User Manual
Appendix D: Factory Initialization Settings
The factory initialization settings provide you a known state for the digitizing
oscilloscope.
Factory initialization sets values as shown in Table A-7.
Table A-7: Factory Initialization Defaults
Control Changed by Factory Init to
Acquire mode Sample
Acquire repetitive signal ON (Enable ET)
Acquire stop after RUN/STOP button only
Acquire # of averages 16
Acquire # of envelopes 10
Channel selection Channel 1 on, all others off
Cursor H Bar 1 position 10% of graticule height
(–3.2 divs from the center)
Cursor H Bar 2 position 90% of the graticule height
(+3.2 divs from the center)
Cursor V Bar 1 position 10% of the record length
Cursor V Bar 2 position 90% of the record length
Cursor amplitude units Base
Cursor mode Independent
Cursor function Off
Cursor time units Seconds
Date and time No change
Delayed edge trigger coupling DC
Delayed edge trigger level 0 V
Delayed edge trigger slope Rising
Delayed edge trigger source Channel 1

Settings