Vari Lite VL10 BeamWash, User Manual, Page: 74 / 85

60
Solid State Electronics
Electrostatic Discharge (ESD)
Electrostatic discharge (ESD) presents a significant danger to solid state electronic
components (semiconductor devices and PC board assemblies). Static electricity can build
on a variety of common objects (including people) simply by handling or moving. ESD
rarely results in immediate failure of a component, but shows up later as an intermittent
problem or severely reduces the life of the component. All VARI
LITE equipment uses
solid state electronics and appropriate precautions to protect them should be observed when
servicing.
Printed Circuit Boards (PCBs)
All PC boards should be shipped in electrostatic shielding bags. When handling PC boards
or components, devices such as conductive mats and conductive wrist straps should be used
whenever possible. If these precautionary devices are not available, handling of PC boards
and components should be avoided.
CAUTION: Black foam (used to package solid state electronics) should never be used for
packing batteries or put in contact with PC boards which contain batteries.
TROUBLESHOOTING AND MAINTENANCE
A