Section 8: Troubleshooting guide
Models 707B and 708B Switching Matrix Reference Manual
8-10
707B-901-01 Rev. A / August 2010
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 inform(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.
