Safety: When Working Inside Your System - Dell 6 series User Manual

• Operate the product only from the type of external power source indicated
on the electrical ratings label. If you are not sure of the type of power
source required, consult your service provider or local power company.
• Handle batteries carefully. Do not disassemble, crush, puncture, short
external contacts, dispose of in fire or water, or expose batteries to
temperatures higher than 60° Celsius (140° Fahrenheit). Do not attempt
to open or service batteries; replace batteries only with batteries designated
for the product.

SAFETY: When Working Inside Your System

Before you remove the system covers, perform the following steps in the
sequence indicated.
WARNING:
trained service technicians are authorized to remove the system cover and access
any of the components inside the system.
WARNING:
after turning off the system before removing a component from the system board or
disconnecting a peripheral device.
1 Turn off the system and any connected devices.
2 Disconnect your system and devices from their power sources. To reduce
the potential of personal injury or shock, disconnect any
telecommunication lines from the system.
3 Ground yourself by touching an unpainted metal surface on the chassis
before touching anything inside the system.
4 While you work, periodically touch an unpainted metal surface on the
chassis to dissipate any static electricity that might harm internal
components.
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WARNING: Safety Instructions
Except as expressly otherwise instructed in Dell documentation, only
To help avoid possible damage to the system board, wait 5 seconds