Keysight N9010A EXA Service Guide 61
Boot Up and Initialization Troubleshooting
Potential Problems During Boot Process
No Agilent/Keysight Splash Screen Displayed
(Black background with white “Agilent Technologies” text or “Keysight
Technologies” text)
A problem of not displaying the Agilent/Keysight splash screen could be
caused by many different things. It could be due to a down power supply, a
processor hardware problem, an instrument boot-up process error, a display
section failure, etc.
This procedure assumes that the green Power On LED on the front panel does
turn on when the instrument is turned on. If it doesn't, refer to the “Green
Power On LED Does Not Illuminate” section before proceeding.
1. Remove the AC power cord and then remove the instrument cover. Refer
to Chapter 15, “Assembly Replacement Procedures”, on page 463 in this
manual.
2. Remove the MP7 Top Brace. Refer to Chapter 15, “Assembly Replacement
Procedures”, on page 463 in this manual.
3. With the AC power applied and the On/Off button turned on, verify that all
of the power supply voltages are at their proper level. This can easily be
done by viewing the power supply LEDs on the back side of the A7
Midplane board. See “A7 Midplane Assembly Troubleshooting” on
page 355 of this manual.
Are all of the power supply voltages at the proper level?
If yes:
Proceed to step 4.
If no:
After verifying that the connections between the A6 Power Supply, the
A7 Midplane board, and the A8 Motherboard are all mechanically
and electrically secure, replace the A6 Power Supply assembly.
4. Connect an external VGA monitor to the rear panel display output and
cycle power on the analyzer. If power is not cycled, the CPU might not
recognize that an external monitor is connected.
Does the external monitor display the correct information?
If yes:
Proceed to the “Troubleshooting a Blank Display” section in this
chapter.
If no:
Replace the A4 CPU Board assembly.
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