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21.1. Notes for Service Technicians
• Only service technicians may open up the Notebook housing or
upgrade or modify your Notebook.
• Use only original replacement parts.
• Before opening the housing, disconnect all power and
connecting cables and remove the battery. If the Notebook is not
disconnected from the power supply before being opened, there
is a risk that components could be damaged.
• Internal components of the Notebook may be damaged by
electrostatic discharge (ESD). Carry out repairs, as well as system
enhancements or modifications, at an ESD workplace. If such a
workplace is not available, wear an antistatic cuff or ensure you are
touching an earthed, metallic object. We will charge for any repairs
to damage caused by incorrect handling.
21.2. Information on Laser Radiation
• The Notebook can contain laser equipment classified as laser class
1 to laser class 3b. The equipment meets the requirements for laser
class 1.
• By opening the housing of the optical drive, you will have access to
laser equipment classified up to laser class 3b.
The following should be observed when removing and/or opening
this laser equipment:
• The integrated optical drive contains no parts that require repair or
maintenance.
• Repairs to the optical drive should only be carried out by the
manufacturer.
• Do not look directly into the laser beam, even when using optical
instruments.
• Do not expose the laser beam. Avoid exposing your eyes or skin
to the laser beam – either directly or through scattered laser
radiation.
