User`s manual

DVR-520 User’s Manual x
General Electrical Safety Guidelines
• Be aware of the locations of the power switches on the chassis and in
the room, so you can disconnect the power supply if an accident occurs.
• Take extra precautionary measures when working with high voltage
components. It is not recommended to work alone.
• Before removing or installing main system components, be sure to dis-
connect the power first. Turn off the system before you disconnect the
power supply.
• Use only one hand when working with powered-on electrical equip-
ment to avoid possible electrical shock.
• Use rubber mats specifically designed as electrical insulators when
working with computer systems.
• The power supply or power cord must include a grounding plug and
must be plugged into grounded outlets.
• Motherboard Battery: CAUTION - Make sure not to install the onboard
battery upside down to avoid possible explosion. Make sure that the
positive side is facing up on the motherboard. This battery must be
replaced only with the same or an equivalent type recommended by the
manufacturer. Dispose of used batteries according to the manufacturer's
instructions.
• CD-ROM Laser: CAUTION - Do not open the enclosures of power
supplies or CD ROMs to avoid injury.
Warning!: Follow the guidelines below to avoid possible
damages to the system or injury to yourself: