Tektronix 744A User Manual

Page of 294
Troubleshooting
6–58
TDS 684A, TDS 744A, & TDS 784A Service Manual
 Firmware Updates
Digitizing Oscilloscopes firmware updates are easy to do. Simply install the
firmware disks on your PC and follow the instructions in the README file
located on the first disk.
NOTE. You must set the Protection switch to the unprotected position before
updating the Firmware. Figure 6–25 shows how to set the switch. After loading
the Firmware, be sure you set the switch back to the protected position and cycle
power.
If you want to order a firmware update, see Optional AccessoriesMechanical
Parts List 
in Section 10 for the part number.
Unprotected
Protected
Figure 6–25: Accessing the Protection Switch