Apple PowerBook (2400c) User Manual Page 95
- Page / 159
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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PowerBook display
The screen went blank.
m Screen dimming may be on. Move the pointer to restore the
screen’s brightness.
m The computer may have gone to sleep. Press any key (except Caps Lock)
on the keyboard to wake it.
m The battery may need recharging. Plug in the power adapter, let the
battery charge for a few minutes, and then try to wake or start up the
computer again.
m If an external monitor is connected, the image may be displayed on that
monitor and not on the PowerBook’s display. (If the external monitor is set
to a different resolution from the 800 x 600 pixels of the PowerBook
display, the computer’s image only appears on the external monitor.)
The screen flickers.
m Adjust the brightness control.
m Open the Monitors & Sound control panel or use the Control Strip to set
the computer to display fewer colors or grays.
m If tilting the display affects the flickering, there may be a loose cable.
Contact an Apple-authorized service provider, or call the Apple
Assistance Center at the number provided in the resource materials that
came with your computer.
The computer freezes when screen dimming takes effect.
m Screen dimming does not work with some programs. Contact the program’s
manufacturer to see if there is a newer version of the program that is
compatible with dimming. If the problem persists, you can open the
PowerBook control panel and turn off screen dimming.
95
Tips and Troubleshooting
- Chapter 1 Getting Started 1
- Chapter 2 Getting Help 1
- Chapter 5 Power Management 1
- User’s ManualUser’s Manual 8
- At Apple’s Web sites 9
- Plugging in the computer 10
- Opening the display 11
- Turning the computer on 12
- Chapter 1 13
- What’s next? 14
- Learning the basics 15
- Tips for using the trackpad 16
- Reviewing the basics 17
- Getting Started 18
- Turning the computer off 19
- Putting the computer to sleep 21
- Automatic sleep 22
- 2 Click the Restart button 23
- Reset button 24
- Getting Help 25
- Chapter 2 26
- Topics 27
- Look For 27
- Scroll bar 29
- To get instructions 29
- …and then click OK 29
- Or double-click the question 30
- If you want to close 32
- Mac OS Guide 32
- Click here to see the next 32
- Tips for using Mac OS Guide 33
- Balloons 34
- Learning useful shortcuts 35
- Using PC Cards (PCMCIA cards) 37
- WARNING 38
- Inserting a PC Card 39
- Ejecting a PC Card 40
- Press to eject upper PC card 41
- Press to eject lower PC card 41
- If you can’t eject a card 42
- Using a zoom video PC Card 43
- Using a PC Card modem 44
- 1 Insert your PC Card modem 45
- 3 Open Remote Access Setup 45
- Chapter 3 46
- Floppy disk drive 47
- Connecting a printer 48
- Connecting an external modem 49
- Connecting SCSI devices 50
- 8 inches minimum 57
- Floppy drive 57
- External monitor port 58
- Monitor adapter 58
- Monitor cable 58
- (to Macintosh 58
- (to VGA-style monitor) 60
- Audio in port 62
- Audio out port 62
- Connecting other devices 63
- Using infrared file transfer 64
- 2 Open the Guide ( 66
- ) menu 66
- Insert the disk metal 67
- Switching programs 68
- Special memory requirements 70
- Shared libraries 70
- Power Management 71
- Monitoring the battery charge 72
- Using the battery icon 73
- Recharging the battery 74
- 1 Slide the battery 75
- 2 Remove the battery 75
- Maximizing work time 76
- The computer won’t restart 84
- A program won’t open 87
- A window has disappeared 89
- Other problems while working 90
- A file can’t be thrown away 91
- Problems with hardware 92
- Hard disk drive 93
- Trackpad 94
- Keyboard 94
- PowerBook display 95
- External monitors 96
- Printers 97
- Chapter 6 100
- Tips and Troubleshooting 101
- Solutions to common problems 102
- Solutions to other problems 102
- Diagnostic Techniques 107
- Chapter 7 108
- Disk Tools 109
- Reinstalling system software 110
- Doing a clean installation 113
- 14 Click Clean Install 116
- IMPORTANT 116
- Doing a custom installation 117
- 2 Click OK 118
- Appendix A 123
- Musculoskeletal discomfort 124
- Eye fatigue 125
- This Not this 126
- Not thisThis 126
- Avoiding fatigue 127
- Important 129
- Caring for batteries 130
- Handling floppy disks 131
- Airplanes and airports 132
- Service and support 134
- Appendix B 135
- Using Your Keyboard 135
- Special key combinations 139
- Macintosh PowerBook 151
- K Apple Computer, Inc 152
- Contents 153
- 2 Getting Help 25 154
- 5 Power Management 71 155
- Part III 156
- Index 141 156
- DOC statement 158
- VCCI Class 2 statement 158
- Welcome to PowerPC 159
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