HP 2170p Uživatelská příručka stáhnout pdf (Strana 51)

100

Testing an AC adapter

Test the AC adapter if the computer exhibits any of the following symptoms when it is connected to

AC power:

● The computer does not turn on.

● The display does not turn on.

● The power lights are off.

To test the AC adapter:

1. Shut down the computer.

2. Remove the battery from the computer.

3. Connect the AC adapter to the computer, and then plug it into an AC outlet.

4. Turn on the computer.

● If the power lights turn on, the AC adapter is functioning properly.

● If the power lights remain off, the AC adapter is not functioning and should be replaced.

Contact support for information on obtaining a replacement AC power adapter.

Using external AC power 41

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 99 100

HP Notebook 1
Safety warning notice 3
Table of contents 5
1 Welcome 11
Finding information 12
Finding information 3 13
TouchPad 14
Component Description 15
Right 11 21
Display 13 23
3Networking 25
Using the wireless button 26
Using a WLAN 27
Protecting your WLAN 28
Roaming to another network 28
Connecting to a wired network 29
Connecting a modem cable 30
Using the keyboard 32
Using keypads 33
Using the TouchPad 36
Using TouchPad gestures 37
Using the pointing stick 38
5Multimedia 39
Using video devices 40
DisplayPort 42
6 Power management 43
Using battery power 45
Charging a battery 47
Maximizing battery life 48
Managing low battery levels 48
Conserving battery power 49
Storing a battery 49
Using external AC power 50
Testing an AC adapter 51
7 Drives 52
Removing the service door 53
Replacing the service door 54
Removing the hard drive 55
Installing a hard drive 56
Inserting an optical disc 57
Removing an optical disc 58
8 External cards and devices 60
Using a USB device 61
Connecting a USB device 62
Removing a USB device 62
Using the docking connector 64
9 Memory modules 65
10 Security 68
Using passwords 69
Using firewall software 71
Enrolling your fingerprint 73
11 Backup and Recovery 75
Backing up your information 77
System Diagnostics 78
Updating the BIOS 79
Determining the BIOS version 80
Downloading a BIOS update 80
13 MultiBoot 82
A Troubleshooting and support 86
A disc does not play 89
Contacting support 90
B Cleaning your computer 92
Cleaning the sides and cover 93
C Specifications 94
Operating environment 95
D Electrostatic discharge 96

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HP 2170p Uživatelská příručka Strana 51

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