Operation Manual

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21.1. Notes for service technicians
` Before opening the housing, disconnect all power and connecting cables. If the
PC is not disconnected from the power supply before being opened, there is a
risk of fatal electric shock. There is also a risk that the components could be dam-
aged.
` Internal components of the PC 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 touch an earthed, metallic object. We will charge for any repairs to damage
caused by incorrect handling.
` Use only original replacement parts.
CAUTION!
Risk of explosion!
There is a lithium battery on the motherboard.
Batteries are special waste and must be disposed of
properly.
` Never try to recharge the battery.
` Do not expose the battery to high temperatures or
fire.
` Please note the polarity when changing the bat-
tery.
` Keep batteries away from children.
` Replace the battery only with the same type (CR
2032).
21.1.1. Information on laser radiation
• Laser equipment classified as laser class 1 to laser class 3b can be used in the PC.
The equipment meets the requirements for laser class 1.
• By opening the housing of the optical drive, you will have access to laser equip-
ment classified up to laser class 3b.
The following should be observed when removing and/or opening this laser equip-
ment:
• The integrated optical drive contains no parts that require repair or mainte-
nance.
• 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 allow yourself to be exposed to the laser beam. Avoid exposing your eyes
or skin to the laser beam – either directly or through scattered laser radiation.