Technical data

Troubleshooting 4
4000 X-Series Oscilloscopes Service Guide 75
Verifying Basic Operation
To power-on the oscilloscope
1 Connect the power cord to the rear of the oscilloscope,
then to a suitable ac voltage source.
The oscilloscope power supply automatically adjusts for
input line voltages in the range of 100 to 240 VAC. Ensure
that you have the correct line cord (see page 135). The
power cord provided is matched to the country of origin.
• Press the power switch.
• When the oscilloscope is turned on, the front panel
LEDs will briefly light up in groups from bottom to
top.
• Next the Agilent logo appears on the display.
• Next a message will appear with tips on getting started
using the oscilloscope. At this time you can press any
key to remove the message and view the display. Or
you can wait and the message will automatically
disappear.
• It will take a total of about 20- 30 seconds for the
oscilloscope to go through its basic self test and
power- up routine.
2 Proceed to “To perform hardware self test” on page 76.
WARNING
AVOID INJURY.
Always operate the oscilloscope with an approved three conductor power cable.
Do not negate the protective action of the three conductor power cable.