Teledyne LeCroy WaveExpert 9000_NRO9000_SDA100G Getting Started Manual - Manual (Page 12)

10 ISSUED: September 2005 WE-GS-E Rev A
Standby (Power) Switch and Scope Operational States
The front Standby (Power) switch controls the operational state of the scope. This toggle switch is
activated by momentarily pressing and releasing it.
The scope’s factory settings result in only two basic scope states: On or Standby. In the case of
Standby, the scope is powered off with the exception of some “housekeeping” circuitry
(approximately 12 watts dissipation). The scope can only be placed in a complete power off state
by unplugging the instrument’s power cord from the primary power source (AC outlet). It is
recommended that the power cord be unplugged from the AC outlet if the scope is not being used
for an extended period of time.
The user has the ability to change the scope original factory settings via the “Power Options
Properties” menu in Windows by following the path: Settings – Power Options. It is important to
note that the Windows Power Option named “Standby” provides control of only the scope’s
computer subsystems (CPU, hard drive, etc.) and does not affect the other subsystems within the
scope. In general, these other subsystems remain fully powered. For additional information on
setting these Power Options, see the Windows Help menu or other related technical
documentation. Regarding control buttons, the scope uses only a power button/switch and
therefore references to a sleep button are not applicable.
The scope can always be placed in the Standby state -- Power Off (except for some
“housekeeping” circuits) -- by pressing and holding in the Standby toggle switch for approximately
5 seconds.
Fuse Replacement
WARNING
For continued fire protection at all line
voltages, replace the fuse with the specified
type and rating only. Disconnect the power
cord before replacing fuse.
Set the scope Standby (power) switch to
Standby mode and disconnect the power cord
before inspecting or replacing the fuse. Open
the black fuse holder (located at the rear of the
instrument directly to the right of the AC inlet)
using a small, flat-bladed screwdriver. Remove
the old fuse, replace it with a new 5x20 mm
IEC 127 Time Lag (“T” rated) 6.3 A / 250 V
fuse, and reinstall the fuse holder.