The oscilloscope has not been designed to make direct measurements on the 
human body. Users who connect a LeCroy oscilloscope directly to a person do so at 
their own risk. Use only indoors. 
 
Power Requirements 
The oscilloscope operates from 90–132 V AC 45-440 Hz, and 180–250 V AC; 45–66 
Hz.  No voltage selection is required, since the instrument automatically adapts to 
the line voltage present. 
 
Fuses 
The power supply of the oscilloscope is protected against short-circuit and overload 
by means of two 6.3 A/250 V AC
 “T”-rated fuses, located above the mains plug.   
 Disconnect the power cord before inspecting or replacing a fuse. Open the fuse box 
by inserting a small screwdriver under the plastic cover and prying it open. For 
continued fire protection at all line voltages, replace only with fuses of the specified 
type and rating (see above). 
Ground 
The oscilloscope has been designed to operate from a single-phase power source, 
with one of the current-carrying conductors (neutral conductor) at ground (earth) 
potential. Maintain the ground line to avoid an electric shock. 
None of the current-carrying conductors may exceed 250 V rms with respect to 
ground potential. The oscilloscope is provided with a three-wire electrical cord 
containing a three-terminal polarized plug for mains voltage and safety ground 
connection. The plug's ground terminal is connected directly to the frame of the unit. 
For adequate protection against electrical hazard, this plug must be inserted into a 
mating outlet containing a safety ground contact.  
 
Cleaning and Maintenance   
Maintenance and repairs should be carried out exclusively by a LeCroy technician. 
Cleaning should be limited to the exterior of the instrument only, using a damp, soft 
cloth. Do not use chemicals or abrasive elements. Under no circumstances should 
moisture be allowed to penetrate the disk drive analyzer. To avoid electric shocks, 
disconnect the instrument from the power supply before cleaning.  
   CAUTION 
 
Risk of electrical shock: No user-serviceable parts inside. Leave repair to 
qualified personnel. 
   
General Information   2-3