NEC HX4500 Service & Reference Manual page 136

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Replacing the Hard Disk Drive LED Board
Figure 4-48. Replacing the Hard Disk Drive LED Board
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Electrostatic discharge (ESD) can damage components; place them
on an antistatic surface. Update the CPU baseboard using an
antistatic wrist strap attached to chassis ground. Observe static
precautions. Use an antistatic wrist strap.
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4-64 Assembly and Disassembly Procedures
! CAUTION

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