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Does the A8 Motherboard fan connector for the fan(s) that do not work have
the required voltage level?
If yes:
Replace the fan(s) that is not working
If not:
After verifying that the connections between the A7 Midplane board and the
A8 Motherboard are mechanically and electrically secure replace the A8
Motherboard.
No Agilent Splash Screen Displayed
(Black background with white "Agilent Technologies" text)
A problem of not displaying the Agilent 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
LED Does Not Illuminate"
1. Remove the AC power cord and then remove the instrument cover. Refer to
Chapter 7, "Assembly Replacement Procedures," on page 161
2. Remove the MP7 Top Brace. Refer to
Procedures," on page 161
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 the
"A7 Midplane Board Assembly"
Are all of the power supply voltages at the proper level?
If yes:
Proceed to
step
4.
If not:
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.
Does the external monitor display the correct information?
If yes:
Chapter 2
Potential Problems During Boot Process
section before proceeding.
Chapter 7, "Assembly Replacement
in this manual.
section in this chapter.
Troubleshooting
"Green Power On
in this manual.
43
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Table of Contents
Troubleshooting
