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3.1. 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 con-
necting 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 sys-
tem 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 han-
dling.
3.2. Information on Laser Radiation
• The Notebook can contain laser equipment classified as la-
ser class 1 to laser class 3b. The equipment meets the require-
ments for laser class 1.
• By opening the housing of the optical drive, you will have ac-
cess to laser equipment classified up to laser class 3b.
The following should be observed when removing and/or open-
ing this laser equipment:
• The integrated optical drive contains no parts that require re-
pair 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 op-
tical instruments.
• Do not expose the laser beam. Avoid exposing your eyes or
skin to the laser beam – either directly or through scattered
laser radiation.
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