Sun Microsystems Netra CT 410, Руководство по обслуживанию

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3-2 Netra CT Server Service Manual • February 2007
3.1 Handling Boards
Each Netra CT server in a chassis has a CompactPCI bus. All of the boards in a
server—the CPU board, alarm card, and I/O boards—are CompactPCI boards.
Caution – The system is sensitive to static electricity. To prevent damage, always
connect an antistatic wrist strap between you and the system.
Caution –
Do not flex the CompactPCI boards; the surface-mounted components
can break.
To minimize the amount of flexing, observe the following precautions:
■
When removing a board from an electrostatic discharge bag, keep it vertical until
you lay it on the electrostatic discharge mat.
■
Do not place a board on a hard surface. Use a cushioned antistatic mat. The
connectors and components have very thin pins that bend easily.
■
Be careful of small parts located on the component side of a board.
■
Do not use an oscilloscope probe on the components. The soldered pins are easily
damaged or shorted by the probe point.
■
Transport a board in an antistatic bag.
Caution – The heat sinks on a board can be damaged by incorrect handling. Do not
touch the heat sinks while installing or removing a board. Hold a board only by the
edges. If a heat sink is loose or broken, obtain a replacement board.
Caution – The heat sinks on a board can be damaged by improper packaging.
When storing or shipping a board, ensure that the heat sinks have sufficient
protection.
Caution – The system controller board and its modules have surface-mount
components that can be broken by flexing the board.