Status
TDS 620A, 640A, & 644A User Manual
To display the banner (firmware version, options, copyright, and patents):
NOTE
Some TDS 644A oscilloscopes do not have a Status main menu
with a banner. However, all instruments display the banner briefly at
power-on.
Press SHIFT STATUS Banner (main) (see Figure 3-75).
Figure 3-75: Banner Display
Banner