3-10
IM AQ6370D-01EN
Note
The instrument “remembers” measurement conditions, selected soft keys, waveforms being 
displayed, and other information. When the power is turned ON, the state of the instrument 
prior to the last shut down is restored. When the power is turned ON for the first time, the 
instrument starts up in the factory default state. 
Turning the Power OFF
 CAUTION
Do not cut the power to the instrument with the MAIN POWER switch on the rear 
panel when an operation is in progress. The operating system configuration file will 
not be backed up, possibly resulting in malfunctions upon start up the next time the 
instrument is turned ON. Always use the above procedure to shut down. 
1.
  Press the POWER switch on the front panel of the instrument. A shut down 
confirmation message is displayed along with the YES and NO soft keys. 
2.
  Press the YES soft key. The message, “AQ6370D is shutting down. Please wait...” 
appears, and shut-down begins. If you do not wish to shut down, press the NO 
soft key. The screen returns to the original soft key menu. 
3.
  After the POWER switch changes from green to orange, turn OFF the MAIN 
POWER switch on the rear panel of the instrument. 
You can also shut down the instrument using panel keys and soft keys.
1.
 Press SYSTEM.
2.
  Press the MORE soft key repeatedly until the MORE 4/4 menu is displayed.
3.
  Press the SHUT DOWN soft key. 
4.
  Press the YES soft key. Shut down begins. 
5.
  After the POWER switch changes from green to orange, turn OFF the MAIN 
POWER switch on the rear panel of the instrument. 
 
Note
If for some reason the instrument fails to shut down normally, hold down the 
POWER 
switch 
for approximately four seconds or longer to force standby mode. Note that the operating system 
configuration file will not be backed up, possibly resulting in malfunctions upon start up the next 
time the instrument is turned on. 
3.4  Turning the Power ON/OFF