48    WM-OM-E Rev I 
WaveMaster 8600A, 8500A, 
8400A,  
WavePro 7000A Series 
DDA-5005A, 3000A 
</= 650 watts (650 VA) 
depending on accessories 
installed (internal printer, 
probes, PC port plug-ins, 
etc.) 
 
 The power supply of the scope is protected against short 
circuit and overload by a 5x20 mm fuse (T10.0 A/250 V). 
See “Fuse Replacement” section for replacement 
instructions. 
 
Power and Ground Connections 
The instrument is provided with a grounded cord set 
containing a molded three-terminal polarized plug and a 
standard IEC320 (Type C13) connector for making line 
voltage and safety ground connection. The AC inlet 
ground terminal is connected directly to the frame of the 
instrument. For adequate protection against electrical 
shock hazard, the power cord plug must be inserted into 
a mating AC outlet containing a safety ground contact. 
 WARNING 
Electrical Shock Hazard! 
Any interruption of the protective 
conductor inside or outside of the 
scope, or disconnection of the safety 
ground terminal creates a hazardous 
situation. 
Intentional interruption is prohibited.
In Standby mode the scope is still connected to the AC 
supply. The instrument can only be placed in a complete 
Power Off state by physically disconnecting the power 
cord from the AC supply. 
The scope should be positioned to allow easy access to 
the socket-outlet. To disconnect the scope from the AC 
supply, unplug the instrument’s power cord from the AC 
outlet after the scope is placed in Standby state. 
See “Standby (Power) Switch and Scope Operational 
States” section for more information. 
 CAUTION 
The outer shells of the front panel 
terminals (CH1, CH2, CH3, CH4, AUX 
IN, AUX OUT) are connected to the 
instrument’s chassis and therefore to 
the safety ground. 
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 color of the LED below the switch indicates 
the status of the scope as follows: 
On (LED Green)*  scope is fully powered and operational 
Standby (LED Off)*  scope is powered off (except for some “housekeeping” circuits) 
Standby (LED Red)  scope’s computer subsystems (hard drive, etc.) are in Standby (reduced 
Power mode). All other scope subsystems are fully powered. 
* Factory Settings