Section 7: Maintenance
Series 3700A System Switch/Multimeter Reference Manual
7-4
3700AS-901-01 Rev. D/June 2018
6. To test the EXIT (LOCAL) key, press the
EXIT (LOCAL)
key once.
7. To exit the test, press the
EXIT (LOCAL)
key twice consecutively. You will exit the test and the
instrument returns to the FRONT PANEL TESTS menu.
8. Press the
EXIT (LOCAL)
key multiple times to exit out of the menu structure.
Display patterns test
This test lets you verify that each pixel and indicator in the vacuum fluorescent display is working
properly.
Perform the following steps to run the display test:
1. If the Series 3700A is in remote mode, press the
EXIT (LOCAL)
key once to place the instrument
in local mode.
2. Press the
MENU
key.
3. Navigate through the menus by turning the navigation wheel , and then pressing the
ENTER
key
to select the items as follows:
DISPLAY > TEST > DISPLAY-TESTS
.
4. Turn the navigation wheel until the
DISPLAY-PATTERNS
menu item is highlighted.
5. To start the display test, press the
ENTER
key. There are three parts to the display test. Each
time the
ENTER
key or the navigation wheel is pressed, the next part of the test sequence is
selected. The three parts of the test sequence are as follows:
▪
Checkerboard pattern and the indicators that are on during normal operation
▪
Checkerboard pattern (alternate pixels on) and all the numeric indicators (which are not used)
are illuminated
▪
Each digit (and adjacent indicators) is sequenced; all of the pixels of the selected digit are on
6. When finished, abort the display test by pressing the
EXIT (LOCAL)
key. The instrument returns
to the FRONT PANEL TESTS menu. Continue pressing the
EXIT (LOCAL)
key to exit out of the
menu structure.
Displaying the instrument's serial number
The instrument serial number is on a label on the rear panel of the instrument. You can also access
the serial number from the front panel using the front-panel keys and menus.
To display the serial number on the front panel:
1. If the Series 3700A is in remote operation, press the
EXIT (LOCAL)
key
once to place the
instrument in local operation.
2. Press the
MENU
key.
3. Use the navigation wheel to scroll to the
UNIT-INFO
menu item.
4. Press the
ENTER
key. The SYSTEM INFORMATION menu is displayed.
5. Scroll to the
SERIAL#
menu item.
6. Press the
ENTER
key. The Series 3700A serial number is displayed.