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Safety Requirements page 5-1 Symbols page 5-3 System Precautions page 5-4 Tools Required page 5-4 --------------------------------
For your protection, observe the following safety requirements:
To protect both yourself and the equipment, observe the safety precautions listed in Table 5-1.
Table 5-1 Safety Precautions
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Item Problem Precaution --------------------------------------------------------------------------------------------------------------------
AC power cord Electric shock Unplug the AC cord from the AC wall socket before working on the power supply. Leave the AC power cord plugged into the AC wall outlet when Grounding replacing drives, SIMMs, chips, or the system board. Leaving the AC power cord plugged into the wall outlet provides a grounding path for the wrist strap, which must be attached. Wrist strap ESD Wear a wrist strap when handling printed circuit boards, drives, or other components such as SIMMs. ESD mat ESD An approved antistatic mat provides protection from static damage when used with a wrist strap. The mat also cushions and protects small parts that are attached to printed circuit boards. Chapter 12, "Illustrated Parts Breakdown," lists the part number of the mat. Printed circuit ESD Handle a printed circuit board by the edges only. Store a board in an boards antistatic bag. Cover System damage Replace the cover after performing service on the system. and overheating SBus and MBus System damage Install filler panels in all unused SBus and MBus slots. Openings on the slot filler panels and overheating back of system board reduce the cooling capability of the system. MBus module, Heat, burns Do not touch the metal heat sinks on the MBus module or the SMC chip. SMC chip The heat sinks can be hot enough to cause personal injury. heat sinks --------------------------------------------------------------------------------------------------------------------
The following symbols mean:
Individuals who service this equipment must observe all safety precautions and ensure compliance with skill level requirements, certification, and all applicable local and national laws.
Procedures contained in this document must be performed by trained maintenance providers. Only people who have been trained by the Sun Microsystems® training facilities (or by Sun Microsystems affiliates) and have been certified as required by local and national laws are considered qualified.
Caution -
Before you begin, carefully read each of the procedures in this manual. If you have not performed similar operations on comparable equipment, do not attempt to perform these procedures.You will need the following tools and equipment:
Caution -
The system chassis power must be turned off, and the AC power cord must remain plugged in to ensure a proper ground.To minimize electro static discharge, observe the following precautions: