Keysight Technologies E4981A, Service Manual

Page: 65 / 152

Chapter 4 63
Troubleshooting
Function Specific Troubleshooting
4. T
roub
lesho
o
ting
Step 8. Press the
SELF TEST
softkey to display the
SELF TEST
page.
Step 9. Use the
CURSOR
arrow keys to move the cursor to the
TEST MENU
field.
Step 10. Use the softkeys to select the
HANDLER INTERFACE
test.
Step 11. Press the
EXECUTE
-
TEST START
softkeys to execute the
HANDLER INTERFACE
test.
Step 12. Confirm that the LEDs on the handler simulator turn ON in accordance with the E4981A’s
output signals displayed on the LCD. The LEDs turns ON light in the sequence shown in
Figure 4-11 .
Figure 4-11 Handler Interface Function Check
Step 13. Press the
TEST STOP
softkey.
NOTE
Do not execute any SELF TEST except for the Handler Interface Test or the E4981A will
become inoperative.
Step 14. Return the jumper and switch settings on the interface board to their original settings.
Softkey Function
INCR +
Increments the test number of the Test Menu.
DECR -
Decrements the test number of the Test Menu.
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