Apple powerbook g4 12 inch 1 33ghz User Manual

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 129
 Hinges with Bezel Brace
Identifying the Replacement Hinges
Before ordering a replacement hinge with bezel brace, verify the LCD panel manufacturer 
and hinge marking, as follows.
1. Check the manufacturer label shown on the LCD panel. 

130 - PowerBook G4 (12-inch 1.33 GHz) Take Apart
 Hinges with Bezel Brace 2. If the label on the LCD panel shows Samsung as the manufacturer, order replacement 
hinges that show a SAM-L or SAM-R designation on the outer arm of the bezel brace. 
• To replace a SAM-L hinge, order 922-5714.
• To replace a SAM-R hinge, order 922-5713 

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 131
 Hinges with Bezel Brace3. If the label on the LCD panel shows IDTech as the manufacturer, order replacement 
hinges that show an LG-L or LG-R designation on the outer arm of the bezel brace. 
• To replace a LG-L hinge, order 922-5712.
• To replace a LG-R hinge, order 922-5711 

132 - PowerBook G4 (12-inch 1.33 GHz) Take Apart
 Display Bezel
Display Bezel
Part Location
Preliminary Steps
Before you begin, remove the following:
• Battery
• Memory door and memory card
• AirPort Extreme Card, if installed
• Keyboard
• Top case
• Hall effect sensor board and cable
• Hard drive
• Modem
• DC-to-DC board
• Heatsink with fan
• Inner frame (with RJ11 board attached)
• Logic board
• DC-in board
• Optical drive 

PowerBook G4 (12-inch 1.33 GHz) Take Apart - 133
 Display Bezel• Display module
• Display housing
• LCD panel
• Inverter (and antenna cable assembly)
Procedure
When all preliminary steps are performed, the display bezel is the part that remains. 

 

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Service Source
Troubleshooting
 
PowerBook G4 (12-inch 1.33 GHz) 

 

PowerBook G4 (12-inch 1.33 GHz) Troubleshooting
 Symptom Charts
 
Symptom Charts
 
How to Use the Symptom Charts
 
The Symptom Charts included in this chapter will help you diagnose speci fic symptoms 
related to the product. 
The steps to solve a symptom are listed sequentially. You might not need to perform every 
step before the symptom is solved. Start with the  first step, and then test for the symptom. 
If the symptom persists, replace any modules you removed, go to the next step, and test...

 

2 - 
 
PowerBook G4 (12-inch 1.33 GHz) Troubleshoot- Symptom Charts
3. Check the signal strength shown in the AirPort status icon in the menu bar. Up to four 
bars can appear.
4. If the symptom remains, refer to the Knowledge Base for the latest articles on  computer placement and how to optimize AirPort performance.
 
Poor AirPort  reception
 
1. Refer to Knowledge Base article 88258: PowerBook G4: How to Optimize AirPort reception.
2. Reseat AirPort antenna and cable.
3. Check AirPort antenna cable...

 

PowerBook G4 (12-inch 1.33 GHz) Troubleshooting
 Symptom Charts
 
Short battery life
 
Refer to Knowledge Base article 114154: SOP: Battery Screening Process--Worldwide.
 
Battery wont charge completely
 
1. If battery reaches 96 percent and doesn’t charge further, this is normal operation. 
Refer to Knowledge Base article 88344: PowerBook G4, iBook: Battery Does Not 
Show Full Charge in Mac OS X.
2. If battery charges to 95 percent or less and stops charging before reaching 100  percent, replace...

 

4 - 
 
PowerBook G4 (12-inch 1.33 GHz) Troubleshoot- Symptom Charts
 
Computer beeps four times at startup
 
1. Four beeps indicates a bad checksum for the remainder of the boot ROM. The ROM 
(which is located on the logic board) is bad.
2. If a RAM card is installed in the expansion slot, remove it and put in known-good and  compatible RAM and restart. 
• If symptom does NOT repeat, replace RAM card. 
• If symptom repeats, replace logic board.
3. If no RAM card is installed, replace logic board....