Maintenance   6-1 
6. Maintenance 
6.1 Introduction 
 
  This section contains information necessary to maintain, calibrate and troubleshoot 
the LeCroy waverunner  digital storage oscilloscopes. 
 
6.1.1 Safety Precautions 
 
 The 
 symbol used in this manual indicates dangers that could result in 
personal injury. 
 
 The 
 symbol used in this manual identify conditions or practices that could 
damage the instrument. 
 
 
 The following servicing instructions are for use by qualified personnel only. 
Do not perform any servicing other than contained in service instructions. Refer to 
procedures prior to performing any service. 
 
 
 Exercise extreme safety when testing high energy power circuits. Always turn 
the power OFF, disconnect the power cord, discharge the cathode ray tube and all 
capacitors before disassembling the instrument. 
 
6.1.2 Antistatic Precautions 
 
 
 Any static charge that builds on your person or clothing may be sufficient to 
destroy CMOS components, integrated circuits, Gate array’s..........etc. 
 
  In order to avoid possible damage, the usual precautions against static electricity 
are required. 
 
•  Handle the boards in antistatic boxes or containers with foam specially designed 
to prevent static build-up. 
•  Ground yourself with a suitable wrist strap. 
•  Disassemble the instrument at a properly grounded work station equipped with 
antistatic mat. 
•  When handling the boards, do not touch the pins. 
•  Stock the boards in antistatic bags.