Lenovo IdeaCentre A720 Safety and Warranty guide V1.0.3 (English) - Page 17

Power supply statement, Products with television tuner options installed

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Danger Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following. Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. Power supply statement Never remove the cover on a power supply or any part that has the following label attached. Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician. Products with television tuner options installed The notice below applies to products containing television (TV) tuner devices that connect to external antennas or to cable/CATV systems, or both, and that are intended to be installed in North America. Users and installers in other countries should follow local codes and ordinances when installing appliances that connect to external antennas and cable/CATV systems. If local codes are not applicable, it is recommended that users/installers follow guidelines similar to those that follow. Note to CATV system installer This reminder is provided to call the CATV system installer's attention to Article 820-40 of the National Electrical Code (NEC) that provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected 12 Safety and warranty guide

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12
Safety and warranty guide
Danger
Some laser products contain an embedded Class 3A or Class 3B laser
diode. Note the following.
Laser radiation when open. Do not stare into the beam, do not view
directly with optical instruments, and avoid direct exposure to the beam.
Power supply statement
Never remove the cover on a power supply or any part that has the following label
attached.
Hazardous voltage, current, and energy levels are present inside any component that
has this label attached. There are no serviceable parts inside these components. If you
suspect a problem with one of these parts, contact a service technician.
Products with television tuner options installed
The notice below applies to products containing television (TV) tuner devices that
connect to external antennas or to cable/CATV systems, or both, and that are
intended to be installed in North America. Users and installers in other countries
should follow local codes and ordinances when installing appliances that connect
to external antennas and cable/CATV systems. If local codes are not applicable, it
is recommended that users/installers follow guidelines similar to those that follow.
Note to CATV system installer
This reminder is provided to call the CATV system installer’s attention to Article
820-40 of the National Electrical Code (NEC) that provides guidelines for proper
grounding and, in particular, specifies that the cable ground shall be connected