HP ProBook VZ243AV User Manual Page 78
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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When you connect the computer to external AC power, the following events occur:
●
The battery begins to charge.
●
If the computer is turned on, the battery meter icon in the notification area changes appearance.
When you disconnect external AC power, the following events occur:
●
The computer switches to battery power.
●
The display brightness is automatically decreased to save battery life. To increase display
brightness, press the fn+f10 hotkey or reconnect the AC adapter.
Connecting the AC adapter
WARNING! To reduce the risk of electric shock or damage to the equipment:
Plug the power cord into an AC outlet that is easily accessible at all times.
Disconnect power from the computer by unplugging the power cord from the AC outlet (not by
unplugging the power cord from the computer).
If provided with a 3-pin attachment plug on the power cord, plug the cord into a grounded (earthed) 3-
pin outlet. Do not disable the power cord grounding pin, for example, by attaching a 2-pin adapter. The
grounding pin is an important safety feature.
To connect the computer to external AC power, follow these steps:
1. Plug the AC adapter into the power connector (1) on the computer.
2. Plug the power cord into the AC adapter (2).
3. Plug the other end of the power cord into an AC outlet (3).
68 Chapter 5 Power management
- HP ProBook User Guide 1
- Safety warning notice 3
- Table of contents 5
- 1 Features 11
- 2 Chapter 1 Features 12
- Identifying hardware 3 13
- 4 Chapter 1 Features 14
- Identifying hardware 5 15
- 6 Chapter 1 Features 16
- Identifying hardware 7 17
- 8 Chapter 1 Features 18
- Identifying hardware 9 19
- 10 Chapter 1 Features 20
- Front components 21
- Right-side components 22
- Identifying hardware 13 23
- Left-side components 24
- Rear components 25
- Bottom components 26
- Display components 27
- 18 Chapter 1 Features 28
- Identifying the labels 29
- Component 30
- (2) Serial number 30
- (3) Product number 30
- (4) Warranty period 30
- Using the wireless controls 32
- Using the wireless button 32
- Setting up a WLAN 35
- Protecting your WLAN 35
- Connecting to a WLAN 36
- Roaming to another network 37
- Inserting a SIM 38
- Removing a SIM 39
- 8. Replace the battery 40
- 10. Turn on the computer 40
- Network icon is not displayed 43
- WLAN connection is very weak 44
- Connecting a modem cable 45
- Selecting a location setting 46
- Using pointing devices 50
- Using the keyboard 50
- Hotkey Description 52
- Using HP QuickLook 3 53
- Using keypads 53
- Component Description 54
- 4 Multimedia 56
- Multimedia software 57
- Checking your audio functions 59
- Using the DisplayPort 61
- Identifying the optical drive 63
- Playing a CD, DVD, or BD 63
- Configuring AutoPlay 63
- Changing DVD region settings 64
- Copying a CD, DVD, or BD 65
- Troubleshooting 66
- A disc does not play 68
- Webcam (select models only) 72
- 5 Power management 74
- Using the battery meter 75
- Using power plans 75
- Customizing power plans 76
- Using external AC power 77
- Connecting the AC adapter 78
- Using battery power 79
- Charging a battery 81
- Managing low battery levels 82
- Calibrating a battery 83
- Step 3: Discharge the battery 84
- Conserving battery power 86
- Storing a battery 87
- Disposing of a used battery 87
- Replacing the battery 87
- Testing an AC adapter 88
- Shutting down the computer 88
- Identifying installed drives 90
- Handling drives 90
- Using Disk Defragmenter 92
- Using Disk Cleanup 92
- Using HP 3D DriveGuard 93
- Replacing a hard drive 98
- 90 Chapter 6 Drives 100
- Replacing an optical drive 102
- 7 External devices 105
- Removing a USB device 106
- Using USB legacy support 106
- Using a 1394 device 107
- Using external drives 110
- Using a docking device 111
- 8 External media cards 112
- Removing a digital card 113
- Configuring an ExpressCard 114
- Inserting an ExpressCard 114
- Removing an ExpressCard 115
- Inserting a smart card 116
- Removing a smart card 116
- 9 Memory modules 118
- 10 Security 126
- Using passwords 127
- BIOS administrator password 128
- Setting a DriveLock password 131
- Entering a DriveLock password 132
- Changing a DriveLock password 133
- Removing DriveLock protection 134
- Securing system devices 136
- Using antivirus software 138
- Using firewall software 139
- Installing critical updates 140
- ProtectTools software Help 141
- Installing a security cable 142
- 11 Software updates 143
- 5. Press enter 144
- Updating the BIOS 145
- Updating programs and drivers 147
- 12 Backup and recovery 148
- Backing up your information 149
- Performing a recovery 151
- Using f11 recovery tools 152
- Performing a recovery 143 153
- 13 Computer Setup 154
- Computer Setup menus 155
- File menu 156
- Security menu 156
- System Configuration menu 157
- Computer Setup menus 149 159
- 14 MultiBoot 161
- 152 Chapter 14 MultiBoot 162
- 15 Management and printing 167
- 16 Routine care 173
- Cleaning products 174
- Cleaning procedures 174
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