Asus B53V - Manual (Page 9)

Notebook PC User Manual 9
Sound Pressure warning
Excessive sound pressure from earphones or headphones can cause
hearing damage or loss. Adjustment of the volume control as well as
the equalizer to settings other than the center position may increase
the earphones or headphones output voltage and the sound pressure
level.
Adapter Information
Input voltage: 100-240Vac
Input frequency: 50-60Hz
Rating output current:
3.42A (65W) for B53A and B43A NB models
4.74A (90W) for B53V and B43V NB models
Rating output voltage: 19Vdc
• Ensure that your Notebook PC is connected to the power
adapter before turning it on for the first time.
• Ensure that your AC power adapter is plugged-in to a grounded
power outlet when using with your Notebook PC.
• Locate the input/output rating label on your Notebook PC and
ensure that it matches the input/output rating information
on your power adapter. Some Notebook PC models may have
multiple rating output currents based on the available SKU.
• When using your Notebook PC on power adapter mode, the
socket outlet must be near to the unit and easily accessible.
Transportation Precautions
To prepare the Notebook PC for transport, you should turn it OFF
and disconnect all external peripherals to prevent damage to
the connectors. The hard disk drive’s head retracts when the power
is turned OFF to prevent scratching of the hard disk surface during
transport. Therefore, you should not transport the Notebook PC
while the power is still ON. Close the display panel and check that it
is latched securely in the closed position to protect the keyboard and
display panel.