Agilent Technologies 16900A, Service Manual

Page: 49 / 130

Replacing Assemblies
6
16900A, 16902A, and 16903A Service Guide 49
• If the system is unplugged while it is off and then
plugged back in, the system will not power on until the
power button is pressed.
Using a Short Press of the Power Button
Pressing the power button on a frame for a short time (less
than 2 seconds or so):
• Closes all programs that are running.
• Writes all data to the disk.
• Turns off the power supply.
If the power button is depressed for a short time (less than
2 seconds or so) while another instrument has an open
Remote Desktop connection to this instrument, a message on
the logic analysis system screen (not on the remote desktop)
will pop up asking if you really want to power down.
Clicking the 'yes' button results in the above events. Clicking
'no' will prevent the shutdown and not answering the dialog
box (neither clicking "Yes" or "No") will have no effect.
Further short presses on the power button will have no
effect.
Using a Long Press of the Power Button
Pressing the power button for more than 4 seconds will
power the system down abruptly. Use this method only when
other methods have not responded:
• Programs that are running will not be shut down. Any
data that has not been written to the disk will be lost.
• Turns off the power supply.
• If the system is unplugged while it is off and then
plugged back in, the system will not power on until the
power button is pressed.
• If the system does not boot, the hard disk drive will need
to be re- imaged.
Unplugging the Power Cord or Power Loss
Unplugging power while the instrument is turned on or a
power loss is similar to the long press of the power button
with one exception:
• When the system is plugged back in, it will power up and
boot into Windows.