2.8.2 What to Do

Printed circuit boards and hard disk drives contain electronic components that are extremely sensitive to static electricity. Ordinary amounts of static from your clothes or the work environment can destroy components. Do not touch the components or any metal parts without taking proper antistatic precautions.

1. Disconnect the AC power cord from the wall power outlet only when performing the following procedures.

   • Removing and replacing the power distribution board

   • Removing and replacing the main logic board

   • Removing and installing a power supply

   The AC power cord provides a discharge path for static electricity, so it should remain plugged in except when you are servicing the parts noted above.

2. Use an antistatic mat or similar surface.

   When performing any service procedure, place static-sensitive parts, such as boards, cards, and disk drives, on an antistatic surface. The following items can be used as an antistatic surface:

   • The bag used to wrap a Sun(TM) replacement part

   • The shipping container used to package a Sun replacement part

   • Sun electrostatic discharge (ESD) mat, part number 250-1088 (available through your Sun sales representatives)

   • Disposable ESD mat, shipped with replacement parts or options

3. Use an antistatic wrist strap.

   Attach the appropriate end to the system chassis sheet metal and attach the other end of the strap to your wrist. Refer to the instructions that come with the strap.

   

4. Detach both ends of the strap after you have completed the installation or service procedure.