• Power down the system before PCB removal.
A Word About Static Discharge
Throughout the many procedures in this Engineering Manual, please observe all static discharge
precautions.
Caution — Avoid handling the switcher circuit boards in high static environments such as
carpeted areas, and when synthetic fiber clothing is worn. Touch the frame to dissipate static
charge before removing boards from the frame, and exercise proper grounding precautions
when working on circuit boards.
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