Apple ibook g4 14 inch late 2004 User Manual

 

iBook G4 (14-inch Late 2004) Troubleshooting - 
 
11
 
 Symptom Charts9. Replace LCD panel.
10. Verify cable connections and check cables around the hinges for damage.
11. Replace logic board.
 
When displaying a single color over the screen area, the LCD panel shows one 
or more pixels that are not properly lit
 
Active-matrix LCD technology uses rows and columns of addressable locations (pixels) 
that render text and images on screen. Each pixel location has three separate subpixels 
(red, green,...

 

12 - 
 
iBook G4 (14-inch Late 2004) Troubleshooting Symptom Charts
a certain number of subpixel anomalies is considered acceptable, and these factors 
apply to all manufacturers using LCD technology—not just Apple products.
 
Scrambled or distorted video
 
Check for video on external display.
• If video is fine on external display, replace LVDS cable.
• If video is scrambled or distorted on external display, replace LCD pane\
l.
 
Video (S-Video and Composite adapter)
 
No video on an external...

 

iBook G4 (14-inch Late 2004) Troubleshooting - 
 
13
 
 Symptom Charts5. Replace logic board. 
 
Display shows ghosting (signal re
flection) 
 
1. Verify that cables are correctly installed and  firmly seated. Check cables for damage.
2. Replace video adapter.
 
Misc. Symptoms
 
The computer runs with battery, but not with the power adapter plugged into 
wall outlet
 
1. Try known-good power outlet. 
2. Try known-good power adapter and power cord. 
 
Note:
 
 Verify that power adapter connector glows...

 

14 - 
 
iBook G4 (14-inch Late 2004) Troubleshooting Symptom Charts
5. Replace logic board.
 
The cursor does not move when you are using trackpad
 
1. Verify that no USB device is connected.
2. Boot from a Mac OS system CD to verify that it is not a software problem.
3. Reset the power manager by pressing the key combination Control-Option-Shift-
power. 
 
Warning: Make sure you do not hold down the fn key when resetting the 
power manager.
Warning: Resetting the power manager means you will also...

 

iBook G4 (14-inch Late 2004) Troubleshooting - 
 
15
 
 Symptom Charts9. Replace top case.
10. Reseat the heatsink if it is not properly secured.
11. Replace logic board.
 
The microphone is not working
 
1. Check the signal level and level meter and adjust the gain.
2. Reset PRAM (Press the power button, then hold down the Option-Command-P-R 
keys until you hear the startup chime at least one additional time after the initial 
startup chime).
3. Verify microphone cable connection to logic board, and...

 

16 - 
 
iBook G4 (14-inch Late 2004) Troubleshooting Symptom Charts
 
Greasy substance in battery bay
 
A small amount of grease is used on the springs in the battery bay. Inform customers that 
the grease helps the springs operate correctly. The grease is not harmful and should not 
cause alarm. However, if it comes in contact with skin, wash it off with soap and water.
Refer to Knowledge Base article 88369: iBook: White Greasy Substance in Battery Bay. 

 

iBook G4 (14-inch Late 2004) Troubleshooting - 
 
17
 Symptom Charts
Block Diagram
External
display
connector
Ethernet port FireWire port
Internal
speakers Headphone port
Internal
microphone
AGP 4X
bus
Memory bus 133 MHz
MaxBus
PMU99
power controller
Trackpad
Keyboard
Power supply and charger
SO-DIMM connector
ATI Mobility
Radeon 9200 graphics IC
Flat-panel display
Audio
system
Ethernet PHY
FireWirePHY
PowerPC G4
microprocessor
(L2 cache: 512 KB)
256 MB on-board SDRAM
PCI bus
Boot
ROM
USB 2.0 port...

 

© 2004 Apple Computer, Inc. All rights reserved.
 
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Service SourceViews
 
iBook G4 (14-inch Late 2004) 

 

iBook G4 (14-inch Late 2004) Views - 
 
1
 
 
 
Slot-Load Optical Drive Side View
Ports Side View
Bottom Case View 

 

2 - 
 
iBook G4 (14-inch Late 2004) Views
 
iBook G4 (14-inch Late 2004): Main Exploded View
Keyboard
922-6637
Top Case
922-6621Bluetooth Cable
922-6188
Bluetooth Antenna
922-6256
Bluetooth Holder
922-6591
Top EMI Shield
922-6620
Frame
922-6619
SDRAM Memory
256 MB 661-3472
512 MB 661-3473
1GB 661-3474
Heatsink
922-6617
Fan
922-6618
Optical Flex Cable 922-6650
Bracket, Flex Cable 922-6616
Optical Drive:
Combo 661-3413
SuperDrive 661-3414
Bracket, Side 922-6175
Bezel, Slot
MKE 922-6264
Sony 922-6265...