Specifications

Chapter 4: Troubleshooting
Primary Trouble Isolation
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A Perform power- up.
Connect the oscilloscope power cord and press the power button in the lower left corner
of the front panel. If the oscilloscope is working properly, it will take several minutes
to start up and the graticule will appear on the screen. The exact appearance may look
slightly different than shown in Figure 4- 2, depending on the setup selected before the
oscilloscope was turned off.
Figure 4-2 Power-on display
If the oscilloscope turns off without you pressing the front panel power button, go to
the “Power Supply Troubleshooting” section of this chapter.
If the oscilloscope does not start up at all, unplug the oscilloscope, wait 30 seconds,
plug the oscilloscope back in, and turn the power on. If it still does not start up, go
to the “Setting Up the BIOS” and “Motherboard Verification” sections of this chapter.
B Check the display.
If the screen is black or has a scrambled display, go to the “Display Troubleshooting”
section of this chapter.
If the display shows MEMCON1, MEMCON2, MEMCON3, or MEMCON4 errors during
boot- up of the oscilloscope software, the lower acquisition board is faulty and requires
replacement. MEMCON5, MEMCON6, MEMCON7, and MEMCON8 errors indicate the
upper acquisition board is faulty and requires replacement.
C Run the oscilloscope self- tests.
1 Select Self Test from the Utilities menu.
2 Select Scope Self Test from the Self Test drop- down list box.
3 Click Start Test and follow the instructions on the screen.
If any of the self tests fail, go to the “Acquisition/Backplane Assembly Troubleshooting”
section of this chapter for further troubleshooting.
D Check the front panel response by running the Keyboard and LED self tests.
Follow these steps to verify correct keyboard operation.
1 Select Self Test from the Utilities menu.
2 Select Keyboard Test from the Self Test drop- down list box, then click Start Test.