PRG VARI LITE VL5, Service Manual

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14 VL5 ™ WASH LUMINAIRE SERVICE MANUAL
EQUIPMENT HANDLING
Solid State Electronics
Electrostatic discharge (ESD) presents a significant danger to solid state electronic components (semiconductor
devices and printed circuit board (PCB) 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 should be observed when servicing.
All parts in the following PRG part number groups should be considered ESD sensitive:
+ 23 - Electrical assemblies
+ 24 - PCB assemblies
+ 80 - Transistor
+ 81-Thyristors
+ 82 - Diodes
+ 83 -IC’s:linear
+ 84 - IC’s:digital
+ 85 - IC’s:interface
+ 86 - Optoelectronic devices
+ 87 - Firmware
+
88 - Light emitting diodes (LEDs), displays
All PCBs should be shipped in electrostatic shielding bags. When handling PCBs 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 PCBs 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 PCBs which contain batteries.