Lenovo 926503U User Manual - Page 6

Troubleshooting, diagnostics, Getting, information, service, Appendix, Manual, modem,

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Chapter 7. Troubleshooting and diagnostics 53 Basic troubleshooting 53 Diagnostic programs 54 PC-Doctor for Windows 55 PC-Doctor for DOS 55 PC-Doctor for Windows PE 57 Cleaning the mouse 57 Optical mouse 57 Non-optical mouse 57 Chapter 8. Getting information, help, and service 59 Information resources 59 Online Books folder 59 ThinkVantage Productivity Center 59 Access Help 60 Safety and warranty 60 www.lenovo.com 60 Help and service 60 Using the documentation and diagnostic programs 61 Calling for service 61 Using other services 62 Purchasing additional services 62 Appendix A. Manual modem commands 63 Basic AT commands 63 Extended AT commands 65 MNP/V.42/V.42bis/V.44 commands 66 Fax Class 1 commands 67 Fax Class 2 commands 67 Voice commands 68 Appendix B. Notices 71 Television output notice 72 Trademarks 72 Index 73 iv User Guide

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Chapter
7.
Troubleshooting
and
diagnostics
.
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. 53
Basic
troubleshooting
.
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. 53
Diagnostic
programs
.
.
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.
. 54
PC-Doctor
for
Windows
.
.
.
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.
. 55
PC-Doctor
for
DOS
.
.
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. 55
PC-Doctor
for
Windows
PE
.
.
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.
.
.
.
. 57
Cleaning
the
mouse
.
.
.
.
.
.
.
.
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.
. 57
Optical
mouse
.
.
.
.
.
.
.
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. 57
Non-optical
mouse
.
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.
. 57
Chapter
8.
Getting
information,
help,
and
service
.
.
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.
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.
. 59
Information
resources
.
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. 59
Online
Books
folder
.
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. 59
ThinkVantage
Productivity
Center
.
.
.
.
.
. 59
Access
Help
.
.
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.
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.
. 60
Safety
and
warranty
.
.
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. 60
www.lenovo.com
.
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. 60
Help
and
service
.
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. 60
Using
the
documentation
and
diagnostic
programs
.
.
.
.
.
.
.
.
.
.
.
.
.
. 61
Calling
for
service
.
.
.
.
.
.
.
.
.
.
. 61
Using
other
services
.
.
.
.
.
.
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.
. 62
Purchasing
additional
services
.
.
.
.
.
.
. 62
Appendix
A.
Manual
modem
commands
.
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. 63
Basic
AT
commands
.
.
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.
.
.
.
.
.
.
. 63
Extended
AT
commands
.
.
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.
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.
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.
. 65
MNP/V.42/V.42bis/V.44
commands
.
.
.
.
.
. 66
Fax
Class
1
commands
.
.
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.
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.
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.
. 67
Fax
Class
2
commands
.
.
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. 67
Voice
commands
.
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. 68
Appendix
B.
Notices
.
.
.
.
.
.
.
.
. 71
Television
output
notice
.
.
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.
.
.
.
. 72
Trademarks
.
.
.
.
.
.
.
.
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.
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.
. 72
Index
.
.
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. 73
iv
User
Guide