Troubleshooting Guide
Table Of Contents
- Finding information with Access ThinkPad
- Contents
- Chapter 1. Overview of your new ThinkPad computer
- Chapter 2. Solving computer problems
- Diagnosing problems
- Troubleshooting
- Error codes or messages
- Errors without codes or messages
- Password problems
- A power switch problem
- Keyboard problems
- TrackPoint problems
- Infrared port problems
- Standby or hibernation problems
- Computer screen problems
- Battery problems
- Hard disk drive problems
- CD-ROM, DVD-ROM, CD-RW, DVD/CD-RW drive problems
- Software problems
- Other problems
- Starting BIOS Setup Utility
- Recover pre-installed software
- Installing a new operating system and device drivers
- Backing up your system
- Replacing the hard disk drive
- Replacing the battery
- Chapter 3. Getting help and service from IBM
- Appendix A. Important safety instructions
- Appendix B. Warranty Statement
- Warranty Period
- IBM Statement of Limited Warranty
- Notices
- Processing date data
- References to the Web site addresses
- Electronic emission notices
- Telecommunication notices
- Industry Canada requirements
- Notice for Australia
- Regions where ThinkPad R30 has ThinkPad modem integrated
- Notice to New Zealand users
- Notice for European Union countries
- Wireless Interoperability
- Usage environment and your Health
- Wireless Regulatory information
- USA - Federal Communications Commission (FCC)
- Canada – Industry Canada (IC)
- Notice to EMEA users
- Trademarks
- Index
Make sure that the infrared ports are clean.
Make sure that no objects are between the computer and the communicating
device.
Make sure that the distance and angle between your computer and the device
are within the specified ranges.
Make sure that you are not operating under direct sunlight.
Make sure that the infrared port is directly facing the other communication
port.
Make sure that the communication application running on your computer is
compatible with that running on the other computer. Refer to the application
manuals for more information.
Problem: Incorrect data is sent between your computer and a communicating
device.
Solution: Make sure that:
v The distance and angle between your computer and the device are within
the ranges.
v The communication speeds are the same.
v There are no other devices that radiate infrared rays, such as
remote-controlled devices or wireless headphones, near your computer or
the communicating device.
v You are not operating under direct sunlight.
v No fluorescent lamps are near your computer or the communicating device.
Problem: You cannot use DMA channels for both the parallel connector and
the infrared port.
Solution: If you enable ECP and choose DMA3 (the default value) for the
parallel connector in the ThinkPad Configuration program, you might be
asked whether you want to disable DMA for the infrared port. To use DMA
channels for both the parallel and infrared ports, do the following:
1. Click OK to disable DMA for the infrared port.
2. Close a parallel port panel.
3. Click the Infrared device button to open the infrared panel.
4. Choose DMA0 or DMA1 for the infrared port on the panel.
5. If you see the panel asked whether you want to disable DMA for an audio
device, click OK.
Solving computer problems
20
ThinkPad
®
R30 Service and Troubleshooting Guide