Apple powerbook firewire User Manual

 
Symptom Charts / Start Up -  
7 
Troubleshooting 
PowerBook (FireWire) 
Symptom Charts
 
Start Up 
RAM failure occurs 
(beeps are heard at 
start up) 
Note:  
There is no RAM on the microprocessor board itself, so the 
computer will beep if no memory is installed in at least one of the 
slots.
1. Remove top RAM SO-DIMM (if present) and restart computer. 
If startup sequence is normal, replace RAM SO-DIMM and 
retest. Note: Verify RAM is PC-100 compatible.
2 . Replace bottom RAM SO-DIMM and retest.
3....

 
Symptom Charts / Power -  
8 
Troubleshooting 
PowerBook (FireWire) Screen is blank; 
backlight isnÕt on; 
computer doesnÕt 
respond1. Restart the computer by pressing the reset button on the back 
of the unit. Wait five seconds and press the Power key.
2. Restart computer.
3. Disconnect power adapter and remove battery, then wait 3-4 
minutes. Reconnect computer to power source and restart.
4 . Check power adapter cable.
5. Try known-good, charged battery.
6. Try known-good power adapter.    
7....

 
Symptom Charts / Power -  
9 
Troubleshooting 
PowerBook (FireWire) Computer functions 
when plugged into 
wall outlet but not on 
battery power1. Verify battery is charged by pressing the level indicator 
button on the battery. If the battery is charged, one or more 
status lights on the battery will glow.
2. Reseat battery to make sure battery is mating with contacts on 
I/O logic board.
3. Try battery in opposite expansion bay.
4. Try known-good, firmly seated, charged battery. Try the same 
battery...

 
Symptom Charts / Video -  
10 
Troubleshooting 
PowerBook (FireWire) 
Video  
Pixel(s) always on or 
off1. A certain number of pixel anomalies are inherent in display 
technology and vary by many factors, including type of 
technology. If you suspect that the display contains an 
abnormal number of anomalies, contact Apple Technical 
Support. 
Warning: 
 Do not use a metal screwdriver to reseat the display cable 
or shorting could result. Use a plastic or nylon tool.
Partial or full row of 
pixels is...

 
Symptom Charts / Video -  
11 
Troubleshooting 
PowerBook (FireWire) No display, but 
computer appears to 
operate correctly1 . Connect power adapter.
2. Adjust screen brightness using keyboard controls.
3. Verify display cable, inverter board, and I/O logic board 
connections.
4. Connect external, known-good monitor.
5. Verify inverter cable is properly connected.
6. Replace inverter cable.
7. Replace inverter board.
8. In the U.S., contact Apple Technical Support. 
9. Replace display cable...

 
Symptom Charts / Sound -  
12 
Troubleshooting 
PowerBook (FireWire) 
Sound 
No sound from 
speaker(s)1. Verify mute mode is not enabled (F6 on the keyboard).
2. Check the volume setting in the Sound control panel.
3. Verify no external speakers or headphones are plugged in.
4 . Reset PRAM.
5 . Make sure speaker cable is plugged into sound card.
6 . Replace sound card.
7. Replace speakers (part of the top case).
8. Replace I/O logic board 
.  
Startup sound is 
heard, then no sound 
from speaker(s)1....

 
Symptom Charts / PC Card Module (PCMCIA) - Troubleshooting 
PowerBook (FireWire) 
PC Card Module (PCMCIA) 
PC Card wonÕt eject 1. Make sure computer is not in sleep mode.
2 . Make sure PC Card slot is not blocked.
3 . Drag PC Card to trash.
4. Try PC Card eject button. (Press the PC Card eject button 
once to release the button, then again to eject the card.)
5 . Remove keyboard and  
AirPort Card (if installed) 
, then gently push 
the card out with your finger.
6. Verify PC Card is not warped or...

 
Symptom Charts / DVD-ROM Drive -  
14 
Troubleshooting 
PowerBook (FireWire) 
DVD-ROM Drive 
Drive does not accept 
disc1. Verify disc is properly seated in the carrier.
2. Reinsert drive in expansion bay.
3. Replace drive.
4. Replace I/O logic board.
Volume control does 
not operate correctly1 . Check Sound control panel setting.
2. Verify mute mode is not enabled.
3. Verify the setting of volume control button.
4. Reinsert drive.
Computer cannot 
mount disc1. Reinsert drive.
2. Replace disc (if dirty...

 
Symptom Charts / Infrared Communication - Troubleshooting 
PowerBook (FireWire) DVD video movie will 
not play1. Clean the disc with an appropriate cleaner.
2. Try another  
DVD video 
 disc.
3 . Ensure DVD video disc appears on desktop.
4. Check that Parental Controls setting is set to On. Select an 
MPAA rating at the same level or higher than the title being 
viewed.
5 . Check region code for DVD video title. (Warning message 
appears.)
6. Reinstall software. 
Poor performance of 
DVD video disc...

 
Symptom Charts / Modem -  
16 
Troubleshooting 
PowerBook (FireWire) 
Modem
 
No dial tone 1. Verify known-good analog (not digital) telephone line.
2. Verify cable is not plugged into Ethernet port.
3. If using Apple Remote Access 3.0, select Ignore Dial Tone in 
the Modem control panel. If the modem connects with this 
setting selected, try another phone line. If using a terminal or 
communications program, enter “atx1” to disable tone 
detection. To reset the modem back to the factory settings,...