HP 6720t Mobile Lights

Lights

Component		Description

(1)	Power lights* (2)	● On: The computer is on.
		● Blinking: The computer is in Standby.
		● Off: The computer is off.

(2)	Wireless lights† (2)	● Blue: An integrated wireless device, such as a
		wireless local area network (WLAN) device, is on.
		● Off: All wireless devices are off.

(3)	Caps lock light	On: Caps lock is on.

(4)	Num lock light	On: Num lock is on.

(5)	Volume mute light	On: Computer sound is turned off.

(6)	Battery light	● Amber: A battery is charging.
		● Blue: A battery is close to full charge capacity.

● Blinking amber: A battery that is the only available power source has reached a low battery level. When the battery reaches a critical battery level, the battery light begins blinking rapidly.

● Off: If the computer is plugged into an external power source, the light turns off when all batteries

2 Chapter 1 Notebook tour

Contents

Page Page Safety warning notice Page Product notice Page Table of contents 5 Multimedia 6 Wireless 7 Modem and LAN 8 Security 9 Connecting hardware 10 Hardware upgrades Appendix A Routine care Page 1 Notebook tour Identifying the hardware Top components Pointing devices Lights Buttons and switches Keys Front components Right-sidecomponents Left-sidecomponents Rear components Bottom components Wireless antennae Identifying the labels 2 Enhanced Write Filter Using the Enhanced Write Filter 3 Pointing devices Using pointing devices Setting pointing device preferences Connecting an external mouse Using the keyboard Using hotkeys Displaying system information (fn+esc) Initiating Standby (fn+f3) Switching the screen image (fn+f4) Viewing battery charge information (fn+f8) Decreasing screen brightness (fn+f9) Increasing screen brightness (fn+f10) Using the keypads Using the embedded numeric keypad Enabling and disabling the embedded numeric keypad Switching key functions on the embedded numeric keypad Using an optional external numeric keypad 4 Power Power control and light locations Shutting down the computer Setting power options Using power-savingstates Initiating and exiting Standby Using the battery meter Using battery power Displaying the remaining battery charge Inserting or removing the battery Charging a battery Managing low battery levels Identifying low battery levels Resolving a low battery level Conserving battery power Storing a battery Using external AC power Connecting the AC adapter 5 Multimedia Using multimedia hardware Using the audio features Using the audio-in(microphone) jack Using the audio-out(headphone) jack Adjusting the volume Using the video features Using the external monitor port Using multimedia software Opening preinstalled multimedia software Using multimedia software Preventing playback disruptions Observing the copyright warning 6 Wireless About integrated wireless devices Using wireless controls Using the wireless button Using operating system controls Setting up a WLAN Connecting to a WLAN Using wireless security features Identifying a WLAN device 7 Modem and LAN Using a modem Connecting a modem cable Connecting a country-specificmodem cable adapter Selecting a location setting Viewing the current location selection Solving travel connection problems Connecting to a local area network Page 8 Security Protecting the computer Using passwords Setting passwords in Windows Using a power-onpassword Managing a power-onpassword Entering a power-onpassword Requiring a power-onpassword at restart Installing a security cable 9 Connecting hardware Using a USB device Connecting a USB device Removing a USB device Using the docking connector Using PC Cards Inserting and removing a PC Card Page Cancel 10 Hardware upgrades Identifying installed drives Handling drives Using optical drives (select models only) Inserting an optical disc (CD or DVD) Removing an optical disc (CD or DVD) When the disc tray opens When the disc tray does not open A Routine care Cleaning the display Cleaning the keyboard Traveling and shipping Page Index