Tektronix K1297-G20 - Manual (Page 166)

Appendix B: Keyboard
B-8 K1297-G20 Monitor User Manual
Switching the Trackball Off or On (PC-3 Board only)
CAUTION. In the following you find descriptions on how to change certain
parameters of the PC BIOS of the Protocol Tester if you are using a PC-3
board). Follow the instructions and do not change other parameters in the
PC BIOS as the device might become unusable or the performance might
degrade. If you have opened a menu that is not described here, press the
key immediately in order to leave the menu.
If you want to switch off the trackball so that only the external mouse is
functional, you must change the PC BIOS.
Change the PC BIOS as follows (the procedure can also be used to switch
the trackball on again):
1. Switch on the device. A blue framed screen appears with a title that
starts with:
Power Bios
2. Press + + as fast as possible.
A window appears titled Award Software International,
Inc. Power BIOS 1.00 Setup
3. Now use the key in order to move to the menu item
called Peripherals
4. Press the Key. Press the key until the value for the
PS/2 Mouse item is highlighted.
5. Use the key to change to select the appropriate
value:
Enabled
Disabled
6. Press , and to save the change. The device
will restart.