Keysight N5171B EXG Service Manual page 65

Troubleshooting
Troubleshooting Assembly Level Problems
10.Using VCP, proceed to and activate by clicking "Run Complete Self-Test".
11.Self-Test results will take 4 to 5 minutes. Results will not be completely
12.If there is a failed Self-Test:
13.Proceed to and click on the "Front Panel Tests".
14.Click on "LED Blink Test".
15.Click on "Key Test".
16.Click on "RPG Test".
17.If any of the steps 10 through 13 fail replace the Front Panel Keyboard
18.If the replacement of a suspected Keyboard assembly does not correct the
19.If replacing the Interface Scan assembly does not provide a fix for the LCD
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seen till the VCP display is refreshed on the computer.
— Follow the steps earlier for
— If the resolution of the Self-Test failure does not fix the LCD's
condition OR, the LCD is required for troubleshooting failure, then
return and/or proceed to the next test.
— The entire suite of tests should function as expected. Only the "LED
Blink Test", "Key Test", and "RPG Test" will provide visible results.
— The 'More', 'Mod On/Off' and 'RF On/Off' LEDs should blink
continuously till the test is stopped by clicking on "End LED Blink
Test".
— Each depicted key can only be activated by pressing each key on the
Front Panel. Doing so will highlight each key pressed but ONLY after
the VCP is refreshed on the computer.
— After all the keys are verified as being good. Pressing or clicking the
bottom softkey "Press here to Exit Key Test" will end the test.
Refreshing the VCP on the computer will be required if the Front
Panel key is pressed vs. clicking it.
— Rotating the RPG knob a minimum of 5 detentes both clockwise and
counter clockwise from its starting point will validate the RPG's
functionality. The results of this test will only be visible after the
VCP is refreshed on the computer.
assembly.
detected fault, replace the Interface Scan assembly.
Display issue, the most likely cause is a faulty LCD Display. Replace the
LCD Display.
"Running Self Test" on page
Keysight X-Series Signal Generators Service Guide
29.