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Toshiba Satellite R20 User Manual - Page 125

Determining the COM port

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125 Exploring Your Computer's Features Setting up for communications Determining the COM port Your modem is connected to one of the computer's COM (communications) ports. The default setting for the modem is COM3. The following procedure is intended to support you if you need to either upgrade your modem or reset the port to the default settings. If you are having trouble connecting through the modem, you may need to determine the current COM port name and possibly change it. To find out which port your modem is connected to: 1 Click Start, Control Panel, Printers and Other Hardware, and then click Phone and Modem Options. The Phone and Modem Options Properties dialog box displays. 2 Fill in the Local Information text boxes and click OK. 3 Click the Modems tab. Your modem should be listed next to one of the computer's COM ports. 4 Make a note of the COM port number. 5 To verify that the modem is set up properly, select the modem you wish to check, and then click Properties to bring up the dialog box with information specific to that modem. The Windows® operating system communicates with the modem and displays identifying information reported by the modem. If the Windows® operating system cannot communicate with the modem, it displays an error message. Consult the troubleshooting sections of your modem and Windows® operating system documentation.

Section	Page
Satellite® R20/R25 Series User’s Guide	1
Contents	26
Introduction	35
This guide	36
Safety icons	37
Other icons used	38
Other documentation	38
Service options	39
Chapter 1: Getting Started	40
Selecting a place to work	40
Creating a computer-friendly environment	40
Keeping yourself comfortable	41
Precautions	41
Important information on your computer’s cooling fan	43
Setting up your computer	44
Setting up your software	45
Registering your computer with Toshiba	46
Adding optional external devices	47
Connecting to a power source	47
Charging the main battery	51
Using the computer for the first time	52
Opening the display panel	52
Your computer’s features and specifications	53
Turning on the power	53
Adding memory (optional)	54
Installing a memory module	54
Using the TouchPad™	55
Scrolling with the TouchPad™	56
Control buttons	56
Disabling or enabling the TouchPad	56
Using external display devices	58
Directing the display output when you turn on the computer	59
Adjusting the quality of the external display	60
Using an external keyboard	60
Using a mouse	61
Connecting a printer	61
Setting up a printer	62
Connecting an optional external diskette drive	63
Turning off the computer	64
Options for turning off the computer	64
Using the Turn Off Computer or Shut Down commands	67
Using and configuring Hibernation mode	70
Using and configuring Standby mode	72
Closing the display panel	73
Using your computer in tablet mode	74
Customizing your computer’s settings	75
Caring for your computer	76
Cleaning the computer	76
Moving the computer	76
Using a computer lock	77
Chapter 2: Learning the Basics	78
Computing tips	78
Using the keyboard	80
Character keys	80
Making your keyboard emulate a full-size keyboard	80
Ctrl, Fn, and Alt keys	81
Function keys	81
Windows® special keys	82
Overlay keys	82
Using the overlay to type numeric data	83
Starting a program	83
Starting a program from the Start menu	84
Starting a program from Windows® Explorer	84
Starting a program from the Run dialog box	85
Saving your work	86
Printing your work	88
Backing up your work	89
Restoring your work	90
Using the optical drive	90
Optical drive components	91
Media Control Buttons	92
Inserting a compact disc	94
Playing an audio CD	96
Playing CDs	97
Creating a CD	97
Removing a disc with the computer on	98
Removing a disc with the computer off	99
Caring for CD or DVD Discs	99
Toshiba’s online resources	100
Chapter 3: Mobile Computing	101
Toshiba’s energy-saver design	101
Running the computer on battery power	101
Battery Notice	102
Power management	103
Using additional batteries	103
Charging batteries	104
Charging the main battery	104
Charging the RTC battery	105
Monitoring main battery power	106
Determining remaining battery power	108
What to do when the main battery runs low	109
Setting battery alarms	110
Conserving battery power	110
Power Profiles	111
Using a hot key to set the Power Profile	112
Changing the main battery	113
Removing the battery from the computer	113
Inserting a charged battery	115
Taking care of your battery	116
Safety precautions	116
Maximizing battery life	117
Disposing of used batteries	118
Traveling tips	120
Chapter 4: Exploring Your Computer’s Features	121
Exploring the desktop	121
Finding your way around the desktop	122
Setting up for communications	124
Connecting the modem to a telephone line	126
Connecting your computer to a network	128
An overview of using the Internet	130
The Internet	130
The World Wide Web	131
Internet Service Providers	131
Connecting to the Internet	131
Surfing the Internet	132
Internet features	132
Uploading to, and downloading files from, the Internet	133
Exploring audio features	133
Recording sounds	134
Using external speakers or headphones	135
Using tablet mode	136
Preparing to use the tablet	136
Using tablet mode	139
Using the Toshiba tablet pen	140
Returning the computer to its original configuration	141
Using PC Cards	141
Inserting a PC Card	142
Removing a PC Card	142
Setting up a PC Card for your computer	143
Using the Bridge Media Adapter Slot	143
Inserting memory media	144
Removing memory media	144
Using the i.LINK® port	145
Using an expansion device	146
Chapter 5: Toshiba Utilities	147
Toshiba Assist	148
Connect	150
Secure	151
Protect & Fix	152
Optimize	153
Setting passwords	154
Using an instant password	154
Setting a user password	155
Disabling a user password	155
Using a supervisor or user password	156
Setting a supervisor password	156
Deleting a supervisor password	157
Toshiba Password Utility	157
PC Diagnostic Tool Utility	159
HDD Protection Utility	160
Fn-esse®	161
Starting Fn-esse®	161
Using drag-and-drop to assign a key	162
Using the keyboard or pointing device to assign a key	163
Viewing existing key assignments	164
Changing or removing existing key assignments	165
Toshiba Hotkey Utility	165
Toshiba SD™ Memory Card Format Utility	166
Toshiba SD™ Memory Boot Utility	167
Booting from a bootable SD card	168
Toshiba Power Saver	168
Preset Power Profiles	170
Quickly creating a new power profile	170
Customizing a power profile	170
Mouse Utility	171
Toshiba Hardware Setup	172
Tablet and Pen Settings	174
Toshiba Rotation Utility	175
Cross Menu Utility	177
Toshiba Tablet Access Code Utility	179
Toshiba SD™ Memory Boot Utility	180
TOSHIBA Mobile Extension	182
Toshiba Zooming Utility	183
Toshiba Button Controls	185
CD/DVD Drive Acoustic Silencer	186
Toshiba Accessibility	187
Trusted Platform Module (TPM)	188
Fingerprint Authentication Utility	189
Fingerprint utility limitations	189
Fingerprint Enrollment	189
Fingerprint Logon	191
Power-on Security	191
Control Center	193
Password Bank	195
Care and maintenance of your fingerprint reader	199
Fingerprint reader limitations	201
Chapter 6: If Something Goes Wrong	202
Problems that are easy to fix	202
Problems when you turn on the computer	204
The Windows ® operating system is not working	206
Using Startup options to fix problems	207
Internet problems	208
The Windows® XP operating system can help you	208
Resolving a hardware conflict	209
A plan of action	209
Resolving hardware conflicts on your own	210
Fixing a problem with Device Manager	211
Memory problems	213
Power and the batteries	214
Keyboard problems	216
Display problems	217
Disk drive problems	219
Optical drive problems	222
Sound system problems	223
PC Card problems	223
Printer problems	227
Modem problems	228
Wireless networking problems	229
DVD operating problems	232
Develop good computing habits	235
Data and system configuration backup in Windows® XP	236
If you need further assistance	242
Before you contact Toshiba	242
Contacting Toshiba	243
Other Toshiba Internet Web sites	244
Toshiba’s worldwide offices	245
Appendix A: Hot Keys	247
Volume Mute	247
Password security	247
Without a password	248
With a password	248
Maintaining security when the battery is not fully charged	249
Power usage mode	249
Standby mode	250
Hibernation mode	251
Display modes	252
Display brightness	252
Disabling or enabling the TouchPad	253
Zooming applications in/out	253
Keyboard hot keys	254
Appendix B: Power Cord/Cable Connectors	255
Appendix C: Using ConfigFree™ with your Toshiba Computer	256
Getting Started	257
Starting ConfigFree	257
ConfigFree Utilities	259
Connectivity Doctor	259
Search for Wireless Devices	262
Profile Settings	267
ConfigFree SUMMIT	270
Quick Connect	275
Using the Automatic Switch	277
Semi-Automatic Switch Feature	278
Glossary	280