Verify Display Operation; Verify Crosspoint Display Operation (707B Only); Update Drivers - Keithley 708B Reference Manual

Section 8: Troubleshooting guide

Verify display operation

You can verify that all the pixels on the vacuum fluorescent display (VFD) are working.
To verify VFD operation:
1. From the front panel, select MAIN MENU > DISPLAY > TEST > DISPLAY-PATTERNS. A pattern
is displayed.
2. Press the navigation wheel to display the next pattern.
3. When you have viewed the patterns, press EXIT to return to the menu.

Verify crosspoint display operation (707B only)

You can verify that the LEDs and displays on the crosspoint display are working properly.
To verify crosspoint display operation:
1. From the front panel, select MAIN MENU > DISPLAY > TEST > LED-PATTERNS. The text
"ALPH NUMERIC COL LEDS" is displayed.
2. Press the navigation wheel to display first test. The name of the test is displayed on the bottom
display.
3. After each test, press the navigation wheel to move to the next test.
4. On the last tests (STEP COL GRIP LED WHEEL TO DIAL), use the navigation wheel to check
the matrix LEDs and the slot LEDs.
5. When you have viewed the patterns, press EXIT to return to the menu.

Update drivers

For the latest drivers and additional support information, see the
(http://www.keithley.com/support).
To see what drivers are available for your instrument:
1. Go to the
2. Select the Support tab.
3. Enter the model number of your instrument.
4. Select Software Driver from the list.
For LabVIEW, you can also go to National Instrument's website and search their instrument driver
database.
8-10
Keithley website (http://www.keithley.com).
Models 707B and 708B Switching Matrix Reference Manual
Keithley Instruments support website
707B-901-01 Rev. A / August 2010