Instruction/ maintenance manual of the product G4 (12-INCH DVI) Apple
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© 2003 Apple Computer , Inc. All rights reser ved. Service Source PowerBook G4 (12-inch) P ow erBook G4 (12-inch) P ow erBook G4 (12-inch D VI) Updated September 16, 2003.
© 2003 Apple Computer, Inc. All rights reserved. Service Source Take Apart PowerBook G4 (12-inch) PowerBook G4 (12-inch DVI).
PowerBook G4 (12-inch) Take Apart - 1 General Information General Information Over view Some of the ke y features that distinguish these computers from earlier notebook models include: • 12-inch act.
2 - PowerBook G4 (12-inch) Take Apart General Information Model Differ ences The e xter nal housing of the P ow erBook G4 (12-inch D VI) model looks the same as the P ow erBook G4 (12-inch) model except f or one por t. T o distinguish the models, look f or a mini-D VI por t (shown belo w) on the P owerBook G4 (12-inch D VI) computer .
PowerBook G4 (12-inch) Take Apart - 3 General Information T ools Most of the tools required f or taking apar t these computers are the same as for earlier notebook models; howe ver , there are three new tools: • 1.
4 - PowerBook G4 (12-inch) Take Apart General Information Serial Number Location The serial number is located in the batter y ba y ..
PowerBook G4 (12-inch) Take Apart - 5 Battery Battery T ools This procedure requires the f ollowing tools: • Soft cloth • Coin Part Location Pr eliminary Steps W arning: Alwa ys shut down the computer before opening it to a void dama ging its internal components or causing injury .
6 - PowerBook G4 (12-inch) Take Apart Battery Pr ocedure W arning: If the computer has been recently operating, allo w it to cool down bef ore perf or ming this procedure. 1. Shut down the computer . 2. Unplug the power adapter , phone cord, and any other cab les connected to the computer .
PowerBook G4 (12-inch) Take Apart - 7 Feet Feet T ools This procedure requires the f ollowing tools: • Foot kit • Tweezers or needlenose pliers • Soft cloth Pr eliminary Step Bef ore y ou begin, identify the type of f oot that needs replacement.
8 - PowerBook G4 (12-inch) Take Apart Feet Pr ocedure W arning: The glue used in this procedure can bond instantly to skin. Do not touch the glue. In the e v ent of contact, re vie w the saf ety instructions at the end of this document. F or additional inf or mation, ref er to the glue manuf acturer : Elmer's Products, Inc.
PowerBook G4 (12-inch) Take Apart - 9 Feet 4. W arning: GLUE IS AN EYE AND SKIN IRRIT ANT . BONDS SKIN INST ANTL Y . Do not touch the glue at any time . Bef ore opening the glue, re view the saf ety instr uctions at the end of this document. Important: The glue tube included in the kit is sealed until first use.
10 - PowerBook G4 (12-inch) Take Apart Memory Door and Memory Card Memory Door and Memory Card T ools This procedure requires the f ollowing tools: • Soft cloth • #0 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic flat-blade tool) Part Location Pr eliminary Steps Bef ore you begin, remov e the batter y .
PowerBook G4 (12-inch) Take Apart - 11 Memory Door and Memory Card 1. Place the computer upside down on a soft cloth. 2. Remov e the f our identical screws from the memor y door . 3. Use a blac k stick to lift off the memory door . 4. T ouch a metal surface inside the computer to discharge static electricity from your body .
12 - PowerBook G4 (12-inch) Take Apart Memory Door and Memory Card 6. Inser t the replacement memor y card into the e xpansion slot at a 30-degree angle. 7. Make sure the memory card is fully inser ted. Check that the notches in the card clear the tabs as you press do wn on the sides of the card to lock it into place .
PowerBook G4 (12-inch) Take Apart - 13 AirPort Extreme Card AirPort Extreme Card T ools This procedure requires a blac k stick (or other nonconductiv e nylon or plastic flat-b lade tool). Part Location Pr eliminary Steps Bef ore you begin, remov e the batter y .
14 - PowerBook G4 (12-inch) Take Apart AirPort Extreme Card Pr ocedure W arning: If the computer has been recently operating, allo w it to cool down f or 30 minutes bef ore performing this procedure. 1. T ouch a metal surface inside the battery bay to discharge static electricity from your body .
PowerBook G4 (12-inch) Take Apart - 15 AirPort Extreme Card 4. Gently disconnect the AirP or t antenna cable. 5. Use the pull tab to pull out the card.
16 - PowerBook G4 (12-inch) Take Apart AirPort Extreme Card 6. Slide the replacement AirP or t Extreme Card with the ser ial number f acing up into the slot, as shown.
PowerBook G4 (12-inch) Take Apart - 17 AirPort Extreme Card 7. Connect the end of the antenna cable to the card. 8. Loop the clear plastic tab under the card so that the tab secures the antenna cable and tucks into the slot. Note: The AirPort slot on the bottom case has a recessed inner slot designed for the clear plastic tab to tuck into.
18 - PowerBook G4 (12-inch) Take Apart Keyboard Keyboard T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic flat-blade tool) Note: T o organize the screws y ou remov e from the computer , use a tra y with divided compar tments (such as a plastic ice cube tra y).
PowerBook G4 (12-inch) Take Apart - 19 Keyboard Pr ocedure 1. With the computer upside down on a soft cloth, remo ve the single scre w and small EMI shield from the memor y card ba y . Replacement Note: Make sure you replace the screw and EMI shield so that the EMI shield is positioned with the finger-like projection pointing up.
20 - PowerBook G4 (12-inch) Take Apart Keyboard 2. Open the computer , and locate the following k eys: •F 1 •F 2 • F11 • F12 3. Important: Using a blac k stick, carefully pry up each of the four k eys from the left side of each ke y . The keys are easily remo ved from the left side without damaging the ke yboard.
PowerBook G4 (12-inch) Take Apart - 21 Keyboard 4. Use a blac k stick or flat-b lade screwdriver to lift off the tw o round stickers that are located between the two k ey mechanisms . Reser ve the stic kers f or replacement. 5. Remov e the screw under each of the stic kers .
22 - PowerBook G4 (12-inch) Take Apart Keyboard 6. Lift up the top two corners of the keyboard, and mo v e the k e yboard to w ard the displa y to clear the tabs at the bottom of the ke yboard.
PowerBook G4 (12-inch) Take Apart - 23 Keyboard 7. Flip the ke yboard ov er and lay the k eyboard flat on the tr ackpad. 8. Use a blac k stick to carefully remo ve the aluminum tape that co vers the k eyboard connector . Y ou will need to reuse the tape when reassemb ling the computer .
24 - PowerBook G4 (12-inch) Take Apart Keyboard 10. Install the replacement ke yboard. Make sure you • Install the foil tape in the recessed area over the keyboard connector. • Set the tabs at the bottom of the keyboard into the slots in the top case.
PowerBook G4 (12-inch) Take Apart - 25 Top Case Top Case T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic flat-blade tool) • Hex 1.
26 - PowerBook G4 (12-inch) Take Apart Top Case Pr ocedure 1. W arning: The screws in the battery bay require holding the screwdriver at an angle. Be careful not to strip the screws. Note: Avoid scratching the external housing by using care when removing the screws.
PowerBook G4 (12-inch) Take Apart - 27 Top Case 3. Open the displa y , and with the computer upright, remov e the f ollo wing 13 scre ws from the top case: • one Hex, 16.
28 - PowerBook G4 (12-inch) Take Apart Top Case 6. Remov e two scre ws from the front r ight side of the top case. Note: For the PowerBook G4 (12-inch DVI) model, the shape of the two 3-mm long screws differs from the screws used in the PowerBook G4 (12-inch) model at this location.
PowerBook G4 (12-inch) Take Apart - 29 Top Case 8. Use a blac k stick running along the edge of the top case to loosen—but not remo ve— the top case from the bottom case.
30 - PowerBook G4 (12-inch) Take Apart Top Case 9. In the ke yboard well, pull up the looped end of the trac kpad cable to disconnect it. 10. Raise the top case up slightly from the bottom case until you can access the cab les that are connected under the top case.
PowerBook G4 (12-inch) Take Apart - 31 Top Case 13. The top case includes the f ollowing: • Microphone cable • Trackpad and trackpad cable • Power button and cable • Tape • Welded EMI strips.
32 - PowerBook G4 (12-inch) Take Apart Top Case 14. Bef ore installing a replacement top case, check the cab le routing of the • Microphone cable • Trackpad cable • Power button cable Make sure the cables are routed correctly and cannot be pinched when installing the top case.
PowerBook G4 (12-inch) Take Apart - 33 Reed Switch Board and Cable: PowerBook G4 (12- Reed Switch Board and Cable: PowerBook G4 (12-inch) T ools This procedure requires the f ollowing tools: • Phill.
34 - PowerBook G4 (12-inch) Take Apart Reed Switch Board and Cable: PowerBook G4 (12- Pr ocedure 1. Remov e the screw from the reed s witch board. W arning: When replacing the board, make sure you use the same screw. A longer screw could scratch the optical media.
PowerBook G4 (12-inch) Take Apart - 35 Hall Effect Sensor Board and Cable: PowerBook G4 Hall Effect Sensor Board and Cable: PowerBook G4 (12-inch DVI) T ools This procedure requires the f ollowing too.
36 - PowerBook G4 (12-inch) Take Apart Hall Effect Sensor Board and Cable: PowerBook G4 Pr ocedure 1. Remov e the screw from the hall eff ect sensor board. W arning: When replacing the board, make sure you use the same screw. A longer screw could scratch the optical media.
PowerBook G4 (12-inch) Take Apart - 37 Hard Drive Hard Drive T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic f.
38 - PowerBook G4 (12-inch) Take Apart Hard Drive • Keyboard • Top case Pr ocedure 1. Disconnect the hard drive fle x cable . 2. Remov e two scre ws from the hard dr iv e brack et.
PowerBook G4 (12-inch) Take Apart - 39 Hard Drive 3. Use the fle x cable to lift up the hard drive , brack et, and cable from the computer housing. 4.
40 - PowerBook G4 (12-inch) Take Apart Hard Drive 5. P eel up the flex cab le from its double-sided tape. 6. Use a blac k stic k to pry the flex cab le connector up slightly on each side, and then pull it straight off the drive . Be careful not to bend any pins.
PowerBook G4 (12-inch) Take Apart - 41 Modem Modem T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic flat-blade .
42 - PowerBook G4 (12-inch) Take Apart Modem Pr ocedure 1. Remov e the two scre ws from the modem board. 2. Use a blac k stick to tilt up the modem and disconnect it from the logic board.
PowerBook G4 (12-inch) Take Apart - 43 Modem 3. At the other end of the modem, disconnect the modem cable from the connector . Replacement Note: When placing the replacement modem on the logic board, be sure to align the board ov er the standoffs and connector on the logic board.
44 - PowerBook G4 (12-inch) Take Apart Modem Replacement W arning: For the P owerBook G4 (12-inch D VI) model, mak e sure you reapply the transparent tape ov er the end of the modem so it overlaps the heatsink at the bottom of the f an, as shown. P owerBook G4 (12-inch D VI) 4.
PowerBook G4 (12-inch) Take Apart - 45 DC-to-DC Board DC-to-DC Board T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver (magnetized preferred) • Black stick (or other n.
46 - PowerBook G4 (12-inch) Take Apart DC-to-DC Board Pr eliminary Steps Bef ore you begin, remov e the following: • Battery • Memory door and memory card • Keyboard • Top case • Hard drive • Modem Pr ocedure 1. Disconnect the sleep light cable and the reed s witch (or hall eff ect sensor board) cable from the DC-to-DC board.
PowerBook G4 (12-inch) Take Apart - 47 DC-to-DC Board 2. Remov e the three screws from the DC-to-DC board. Note: When removing the 3 mm-long screw, the magnetic latch might draw the screw toward it. The 14-mm long screw has a hex head and requires a needlenose pliers or socket wrench to remove it.
48 - PowerBook G4 (12-inch) Take Apart DC-to-DC Board 3. Remov e the two scre ws at the batter y connector . 4. Lift off the EMI strip from the batter y connector .
PowerBook G4 (12-inch) Take Apart - 49 DC-to-DC Board 5. Place a blac k stick just under the top edge of the board at the modem standoff . Disconnect the DC-to-DC board from the logic board by prying up the DC-to-DC board and removing it from the computer assemb ly .
50 - PowerBook G4 (12-inch) Take Apart Heatsink and Fan Assembly: PowerBook G4 (12- Heatsink and Fan Assembly: PowerBook G4 (12-inch) T ools This procedure requires the f ollowing tools: • #0 Philli.
PowerBook G4 (12-inch) Take Apart - 51 Heatsink and Fan Assembly: PowerBook G4 (12- • Keyboard • Top case • Modem Pr ocedure 1. W arning: The cone of the subwoofer , located below the heatsink and to the right of the f an, is a sensitive de vice.
52 - PowerBook G4 (12-inch) Take Apart Heatsink and Fan Assembly: PowerBook G4 (12- 3. Remov e the tape that cov ers the heatsink and secures the cables in place. 4. Near the f an, peel up the tape and remov e the follo wing screws: • One 3 mm long screw • One 6 mm long screw • One 13 mm long screw 5.
PowerBook G4 (12-inch) Take Apart - 53 Heatsink and Fan Assembly: PowerBook G4 (12- 7. Holding the heatsink at the crossbar , begin to lift up the heatsink assembly , being careful where it catches on remaining tape and the chassis. Use a blac k stic k to pr y up the middle right cor ner of the heatsink plate.
54 - PowerBook G4 (12-inch) Take Apart Heatsink and Fan Assembly: PowerBook G4 (12- 9. Note the routing of the remaining cables and the placement of tape once the heatsink is remov ed. . 10. Install the replacement heatsink and f an assembly , and reassemble and test the computer .
PowerBook G4 (12-inch) Take Apart - 55 Heatsink: PowerBook G4 (12-inch DVI) Heatsink: PowerBook G4 (12-inch DVI) T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver • #1.
56 - PowerBook G4 (12-inch) Take Apart Heatsink: PowerBook G4 (12-inch DVI) Pr ocedure 1. W arning: The cone of the subwoofer , located below the heatsink and to the right of the f an, is a sensitive de vice. A void touching the subw oofer cone as y ou perform this procedure.
PowerBook G4 (12-inch) Take Apart - 57 Heatsink: PowerBook G4 (12-inch DVI) 3. Near the f an, peel up the tape that secures the cables to the heatsink. 4. Remov e the 3mm-long screw that secures the in ver ter cab le to the frame. 5. Disconnect the inv er ter cable that runs along the top of the f an from the logic board.
58 - PowerBook G4 (12-inch) Take Apart Heatsink: PowerBook G4 (12-inch DVI) 7. Check the thermal pads on the heatsink: • If you are performing another module replacement and will be using the existing heatsink, peel away the thermal pads on the underside of the heatsink, and apply new thermal pads in the orientation shown.
PowerBook G4 (12-inch) Take Apart - 59 Heatsink: PowerBook G4 (12-inch DVI) 9. Install the replacement heatsink, and secure the screws using the f ollowing sequence: W arning: Check the screw lengths before installing the screws. Installing a longer screw in the wrong place can permanently damage the bottom case or an internal part.
60 - PowerBook G4 (12-inch) Take Apart Inner Frame: PowerBook G4 (12-inch) Inner Frame: PowerBook G4 (12-inch) T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver • Blac.
PowerBook G4 (12-inch) Take Apart - 61 Inner Frame: PowerBook G4 (12-inch) • Top case • Reed switch • Hard drive • Modem • DC-to-DC board • Heatsink with fan Pr ocedure 1. Note the cable routing and placement of tape bef ore disconnecting cables.
62 - PowerBook G4 (12-inch) Take Apart Inner Frame: PowerBook G4 (12-inch) 2. W arning: The subwoofer cone , located below the right cor ner of the frame , is a sensitive de vice. A void touching the cone as y ou perform this procedure. 3. Disconnect the connector from the upper right cor ner of the logic board.
PowerBook G4 (12-inch) Take Apart - 63 Inner Frame: PowerBook G4 (12-inch) 6. Pull up the L VDS cable with the pull tab W arning: Be careful not to strain the L VDS cable. 7. Remov e the screw at the L VDS cable. Replacement Note: When reinstalling the LVDS cable, tuck the pull tab under the frame.
64 - PowerBook G4 (12-inch) Take Apart Inner Frame: PowerBook G4 (12-inch) 8. P eel up the tape, and remov e the screw at the RJ11 modem cab le board. 9. Tilt up the RJ11 modem cable board and remo ve the 6-mm long scre w (not shown) that secures the frame to the logic board.
PowerBook G4 (12-inch) Take Apart - 65 Inner Frame: PowerBook G4 (12-inch) 10. Remov e the two scre ws at the I/O por ts. 11. Remov e the EMI strip at the top of the I/O por ts.
66 - PowerBook G4 (12-inch) Take Apart Inner Frame: PowerBook G4 (12-inch) 12. Remov e the three screws from the top of the heatsink. 13. Remov e the two scre ws from the lower left corner of the computer assembly .
PowerBook G4 (12-inch) Take Apart - 67 Inner Frame: PowerBook G4 (12-inch) 14. Disconnect the optical drive fle x cable . 15. Lift up the frame , being careful where it catches on the optical drive fle x cable or other cables .
68 - PowerBook G4 (12-inch) Take Apart Inner Frame: PowerBook G4 (12-inch) 16. Lift the inner frame out of the computer assemb ly . 17. Remov e the tape that secures the RJ11 board and cable to both sides of the fr ame. T ransfer the RJ11 board and cab le to the replacement frame.
PowerBook G4 (12-inch) Take Apart - 69 Inner Frame: PowerBook G4 (12-inch) 18. Install the replacement frame , and reassemble and test the computer . Replacement Note: When installing the replacement .
70 - PowerBook G4 (12-inch) Take Apart Inner Frame: PowerBook G4 (12-inch DVI) Inner Frame: PowerBook G4 (12-inch DVI) T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver .
PowerBook G4 (12-inch) Take Apart - 71 Inner Frame: PowerBook G4 (12-inch DVI) • Top case • Reed switch • Hard drive • Modem • DC-to-DC board • Heatsink Pr ocedure 1. Note the cable routing bef ore disconnecting cables. Replacement Note: Reserve the tape for securing cables after the frame replacement.
72 - PowerBook G4 (12-inch) Take Apart Inner Frame: PowerBook G4 (12-inch DVI) 2. W arning: The subwoofer cone , located below the right cor ner of the frame , is a sensitiv e device. A void touching the cone as y ou perform this procedure. 3. Disconnect the connector from the upper right cor ner of the logic board.
PowerBook G4 (12-inch) Take Apart - 73 Inner Frame: PowerBook G4 (12-inch DVI) 5. W arning: Be careful not to strain the L VDS cable . Near the I/O ports, • disconnect the LVDS cable by using the pull-tab on the connector • disconnect the 6-pin connector Replacement Note: When reinstalling the LVDS cable, tuck the pull-tab under the frame.
74 - PowerBook G4 (12-inch) Take Apart Inner Frame: PowerBook G4 (12-inch DVI) 6. Near the f an, disconnect the two connectors shown • four-pin connector • two-pin connector.
PowerBook G4 (12-inch) Take Apart - 75 Inner Frame: PowerBook G4 (12-inch DVI) 7. P eel up any remaining tape, and remov e the screws from the frame and I/O por t shield. 8. Tilt up the RJ11 modem cable board and remo ve the 6-mm long scre w (nor mally hidden by the RJ11 board).
76 - PowerBook G4 (12-inch) Take Apart Inner Frame: PowerBook G4 (12-inch DVI) 9. Disconnect the optical drive fle x cable . 10. Lift up the frame, being careful where it catches on the optical driv e fle x cable or other cables .
PowerBook G4 (12-inch) Take Apart - 77 Inner Frame: PowerBook G4 (12-inch DVI) 11. Lift the inner frame out of the computer assemb ly ..
78 - PowerBook G4 (12-inch) Take Apart Inner Frame: PowerBook G4 (12-inch DVI) 12. Remov e the tape that secures the RJ11 board and cable to both sides of the frame . T ransfer the RJ11 board and cab le to the replacement frame. 13. Remov e the screws from the f an.
PowerBook G4 (12-inch) Take Apart - 79 Inner Frame: PowerBook G4 (12-inch DVI) 14. Install the replacement frame , and reassemble and test the computer . Replacement Note: Make sure you install the top EMI strip at the port side of the replacement frame.
80 - PowerBook G4 (12-inch) Take Apart RJ11 Modem Board and Cable: PowerBook G4 (12- RJ11 Modem Board and Cable: PowerBook G4 (12-inch) T ools This procedure requires the f ollowing tools: • #0 Phil.
PowerBook G4 (12-inch) Take Apart - 81 RJ11 Modem Board and Cable: PowerBook G4 (12- • Top case • Reed switch • Hard drive • Modem • DC-to-DC board • Heatsink with fan • Inner Frame Pr ocedure 1. With the inner frame remov ed from the computer , remov e the tape that secures the RJ11 board and cable to both sides of the fr ame.
82 - PowerBook G4 (12-inch) Take Apart RJ11 Modem Board and Cable: PowerBook G4 (12- 2. Remov e the EMI shield from the RJ11 board. The board includes the attached cable and connector . 3. Secure the replacement RJ11 modem board and cable to the fr ame, and reassemble and test the computer .
PowerBook G4 (12-inch) Take Apart - 83 RJ11 Modem Board and Cable: PowerBook G4 (12- RJ11 Modem Board and Cable: PowerBook G4 (12-inch DVI) T ools This procedure requires the f ollowing tools: • #0 .
84 - PowerBook G4 (12-inch) Take Apart RJ11 Modem Board and Cable: PowerBook G4 (12- • Top case • Hall effect sensor board • Hard drive • Modem • DC-to-DC board • Heatsink • Inner Frame Pr ocedure 1. With the inner frame remov ed from the computer , remov e the tape that secures the RJ11 board and cable to both sides of the fr ame.
PowerBook G4 (12-inch) Take Apart - 85 RJ11 Modem Board and Cable: PowerBook G4 (12- 2. Remov e the EMI shield from the RJ11 board. The board includes the attached cable and connector . 3. Secure the replacement RJ11 modem board and cable to the fr ame, and reassemble and test the computer .
86 - PowerBook G4 (12-inch) Take Apart Fan: PowerBook G4 (12-inch DVI) Fan: PowerBook G4 (12-inch DVI) T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver • Black stick .
PowerBook G4 (12-inch) Take Apart - 87 Fan: PowerBook G4 (12-inch DVI) • Hard drive • Modem • DC-to-DC board • Heatsink • Inner Frame Pr ocedure 1. With the inner frame remov ed from the computer , remov e the three identical screws that secure the f an to the frame.
88 - PowerBook G4 (12-inch) Take Apart Fan: PowerBook G4 (12-inch DVI) 2. Note the routing of the f an cable in the channel of the frame . Replacement Note: Route the fan cable as shown. 3. Secure the replacement f an to the frame, and reassemb le and test the computer .
PowerBook G4 (12-inch) Take Apart - 89 Sleep Light Sleep Light T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver Part Location Pr eliminary Steps Bef ore you begin, remo.
90 - PowerBook G4 (12-inch) Take Apart Sleep Light Pr ocedure 1. Remov e the screw from the sleep light board. 2. Remov e the board from the bottom case. 3. Replacement Note: Make sure the bottom case has the sleep light pipe installed bef ore installing the replacement sleep light board.
PowerBook G4 (12-inch) Take Apart - 91 Logic Board Logic Board T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic.
92 - PowerBook G4 (12-inch) Take Apart Logic Board P owerBook G4 (12-inch D VI) Pr eliminary Steps Bef ore you begin, remov e the following: • Battery • Memory door and memory card • AirPort Ext.
PowerBook G4 (12-inch) Take Apart - 93 Logic Board Pr ocedure 1. Remov e the two scre ws near the r ight edge of the board..
94 - PowerBook G4 (12-inch) Take Apart Logic Board 2. Holding the edges of the board tilt up the logic board. 3. While holding the board vertically , disconnect the DC-in connector cab le from the underside of the logic board.
PowerBook G4 (12-inch) Take Apart - 95 Logic Board 4. Remov e the side EMI shield from the I/O por ts. W arning: When installing the EMI shield over the logic board ports, make sure that the shield fits loosely and the ports are not obstructed.
96 - PowerBook G4 (12-inch) Take Apart Logic Board 5. Install the replacement logic board, and reassemble and test the computer . Replacement Note: Before securing the replacement logic board in the bottom case, make sure the white plastic wireless guide is fitted against the AirPort Extreme Card carrier in the bottom case.
PowerBook G4 (12-inch) Take Apart - 97 DC-In Board DC-In Board This procedure requires the f ollowing tools: • #0 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic flat-b.
98 - PowerBook G4 (12-inch) Take Apart DC-In Board • Heatsink with fan • Inner frame (with RJ11 board attached) • Logic board Pr ocedure 1. Hold the DC-in board in place as you remo v e the screw that attaches the board to the bottom case. Note: The screw might be hidden under the mylar sleeve at the lower corner of the board.
PowerBook G4 (12-inch) Take Apart - 99 DC-In Board 4. Remov e the round por t liner . 5. Install the replacement DC-in board, and reassemble and test the computer .
100 - PowerBook G4 (12-inch) Take Apart Optical Drive Optical Drive T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver • Black stick (or other nonconductive nylon or pl.
PowerBook G4 (12-inch) Take Apart - 101 Optical Drive • Top case • Reed switch (or hall effect sensor board) • Hard drive • Modem • DC-to-DC board • Heatsink with fan • Inner frame (with RJ11 board attached) • Logic board Pr ocedure 1.
102 - PowerBook G4 (12-inch) Take Apart Optical Drive 2. Use a blac k stick to remo ve the shoulder brac ket. 3. Remov e the two scre ws from the slot load bezel.
PowerBook G4 (12-inch) Take Apart - 103 Optical Drive 4. Tilt up the optical drive and remov e it from the computer . 5. Remov e the screws from the L-shaped EMI brac ket on the top of the driv e.
104 - PowerBook G4 (12-inch) Take Apart Optical Drive 6. T ur n ov er the dr iv e and remov e the three screws from the L-shaped EMI brac ket on the bottom of the drive.
PowerBook G4 (12-inch) Take Apart - 105 Optical Drive 8. Important: For the P owerBook G4 (12-inch D VI) model, the optical dr iv e bezel is included with the replacement drive, so do not remo ve it. This step applies only to the P owerBook G4 (12-inch) model.
106 - PowerBook G4 (12-inch) Take Apart Bluetooth Bluetooth T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic fl.
PowerBook G4 (12-inch) Take Apart - 107 Bluetooth • Modem • DC-to-DC board • Heatsink with fan • Inner frame (with RJ11 board attached) • Logic board • Optical drive Pr ocedure W arning: The subwoofer , located to the left of the Bluetooth board, is a sensitive de vice.
108 - PowerBook G4 (12-inch) Take Apart Subwoofer Subwoofer T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic fl.
PowerBook G4 (12-inch) Take Apart - 109 Subwoofer • Heatsink with fan • Inner frame (with RJ11 board attached) • Logic board • Optical drive • Bluetooth Pr ocedure W arning: The cone of the subwoofer is a sensitiv e device. A void touching the subwoof er cone as you perf or m this procedure.
110 - PowerBook G4 (12-inch) Take Apart Subwoofer 4. Note: The back edge of the subwoof er adheres to the rear panel. Use a black stick to pry open the adhesive seal at the rear panel. Pivot the subwoofer away from the rear panel, and remove the subwoofer from the bottom case.
PowerBook G4 (12-inch) Take Apart - 111 Display Module Display Module T ools This procedure requires the f ollowing tools: • #0 Phillips screwdriver • #1 Phillips screwdriver • Black stick (or o.
112 - PowerBook G4 (12-inch) Take Apart Display Module • Keyboard • Top case • Reed switch (or hall effect sensor board) • Hard drive • Modem • DC-to-DC board • Heatsink with fan • Inn.
PowerBook G4 (12-inch) Take Apart - 113 Display Module 2. Remov e the two screws near the displa y hinge. 3. F rom the inside of the bottom case, carefully remo ve the tape from the AirP or t antenna cable . W arning: Do not tug on the AirP or t antenna cable.
114 - PowerBook G4 (12-inch) Take Apart Display Module 5. Holding the antenna cable near the str ain relief, start to pull the antenna cable out through the cor ner of the card ba y . 6. Suppor t the antenna cable as y ou direct the antenna plug out of the opening in the card ba y .
PowerBook G4 (12-inch) Take Apart - 115 Display Module 7. With the displa y open to a 90-deg ree angle and resting face-up on the tab letop , lift off the bottom housing from the displa y . Important: The display might get caught on the hooks (shown below) on the bottom case.
116 - PowerBook G4 (12-inch) Take Apart Display Module 8. Remov e the f our screws from the displa y’ s inner rear panel. Make sure the screwdriv er does not touch the speakers. 9. Remov e the inner rear panel with attached speak ers by routing the cab les through the slots in the rear panel.
PowerBook G4 (12-inch) Take Apart - 117 Display Module Replacement Note: When installing the rear panel, check that the twisted pair of speaker cables is completely recessed in the panel and that the tape holds the cables in place.
118 - PowerBook G4 (12-inch) Take Apart Display Module 10. Install the replacement displa y module, and reassemble and test the computer ..
PowerBook G4 (12-inch) Take Apart - 119 Bottom Case Bottom Case Part Location Pr eliminary Steps Bef ore you begin, remov e the following: • Battery • Memory door and memory card • AirPort Extre.
120 - PowerBook G4 (12-inch) Take Apart Bottom Case • Optical drive • Bluetooth • Subwoofer • Display module Pr ocedure When all preliminar y steps are perf or med, the bottom case is the par t that remains .
PowerBook G4 (12-inch) Take Apart - 121 Display Housing Display Housing T ools This procedure requires the f ollowing tools: • 1.5 mm hex driver • Black stick (or other nonconductive nylon or plas.
122 - PowerBook G4 (12-inch) Take Apart Display Housing • Hard drive • Modem • DC-to-DC board • Heatsink with fan • Inner frame (with RJ11 board attached) • Logic board • DC-in board • Optical drive • Display module Pr ocedure 1. Remov e the two 5-mm long he x screws from the front bez el.
PowerBook G4 (12-inch) Take Apart - 123 Display Housing 2. Use a blac k stick or thin plastic credit card around the outer edge of the bez el to separate the displa y housing tabs from the display assemb ly . W arning: To avoid damage to the antenna receptors or inner cables, do not poke the black stick or credit card inside the display.
124 - PowerBook G4 (12-inch) Take Apart Display Housing 3. W arning: Handle the display assemb ly and cables with care. Do not strain or pinch the cables . Do not apply pressure to or bend the antenna receptors. Gently lift the display assembly off of the display housing.
PowerBook G4 (12-inch) Take Apart - 125 Display Housing 4. Note the routing of the antenna cables . P eel up the tape that holds the cables in place. W arning: Handle the antenna receptors and cables with care. Do not strain or pinch the cables. Do not apply pressure to or bend the antenna receptors.
126 - PowerBook G4 (12-inch) Take Apart Display Housing 7. Note: The antenna receptors are held in place with glue at each post. Use a blac k stick at the end of each antenna receptor to gently pry it off the post.
PowerBook G4 (12-inch) Take Apart - 127 Display Housing 8. Placing the antenna cables and receptors aside , remov e the display housing. Replacement Note: When installing the replacement display housing, make sure the antenna cables are secure under all of the inner tabs that run along the sides and bottom of the display housing.
128 - PowerBook G4 (12-inch) Take Apart LCD Panel LCD Panel T ools This procedure requires the f ollowing tools: • Phillips #0 screwdriver • Black stick or other nonconductive plastic or nylon too.
PowerBook G4 (12-inch) Take Apart - 129 LCD Panel • Modem • DC-to-DC board • Heatsink with fan • Inner frame (with RJ11 board attached) • Logic board • DC-in board • Optical drive • Display module • Display housing Pr ocedure Note: Reuse the tape you remov e from the LCD panel.
130 - PowerBook G4 (12-inch) Take Apart LCD Panel 2. Remov e the two scre ws from each side of the LCD panel. Note: For the PowerBook G4 (12-inch DVI) model, this step is the same; however, there are no EMI clips bordering the LCD panel, as shown in the PowerBook G4 (12- inch) images below.
PowerBook G4 (12-inch) Take Apart - 131 LCD Panel 3. Lift off the long EMI clip at the base of the bezel. 4. Raise up the LCD panel and disconnect the connector to the inv er ter board. 5. Install the replacement LCD panel, and reassemble and test the computer .
132 - PowerBook G4 (12-inch) Take Apart Inverter Board (and Antenna Cable Assembly) Inverter Board (and Antenna Cable Assembly) T ools This procedure requires the f ollowing tools: • Phillips #0 scr.
PowerBook G4 (12-inch) Take Apart - 133 Inverter Board (and Antenna Cable Assembly) • Hard drive • Modem • DC-to-DC board • Heatsink with fan • Inner frame (with RJ11 board attached) • Logic board • DC-in board • Optical drive • Display module • Display housing • LCD panel Pr ocedure 1.
134 - PowerBook G4 (12-inch) Take Apart Inverter Board (and Antenna Cable Assembly) 2. Lift up the board. 3. P eel awa y the tape and mylar co ver that holds the in ver ter board and the antenna cable assemb ly together .
PowerBook G4 (12-inch) Take Apart - 135 Inverter Board (and Antenna Cable Assembly) 4. Separate the antenna cab le assembly (board with attached antenna cab les and Bluetooth cable) from the in verter board. 5. Remov e the screws from the clutch co ver .
136 - PowerBook G4 (12-inch) Take Apart Inverter Board (and Antenna Cable Assembly) 7. Separate the clutch cov er from the bezel and remov e the L VDS cable .
PowerBook G4 (12-inch) Take Apart - 137 Inverter Board (and Antenna Cable Assembly) Replacement Note: When reinstalling the clutch cover, check that the cables are routed as shown below (Bluetooth cab.
138 - PowerBook G4 (12-inch) Take Apart Inverter Board (and Antenna Cable Assembly) 9. F rom the left side of the bezel, remo ve the three scre ws. 10. Important: In the follo wing steps, note that because of the position of the bezel, the designation of right and left differs .
PowerBook G4 (12-inch) Take Apart - 139 Inverter Board (and Antenna Cable Assembly) 11. F rom the right side of the bezel, slide out the left hinge with bez el brace (no scre ws on this side).
140 - PowerBook G4 (12-inch) Take Apart Display Bezel Display Bezel Part Location Pr eliminary Steps Bef ore you begin, remov e the following: • Battery • Memory door and memory card • AirPort E.
PowerBook G4 (12-inch) Take Apart - 141 Display Bezel • Display module • Display housing • LCD panel • Inverter (and antenna cable assembly) Pr ocedure When all preliminar y steps are perf or med, the displa y bezel is the par t that remains .
© 2003 Apple Computer , Inc. All r ights reser ved. Service Source Troubleshooting PowerBook G4 (12-inch) PowerBook G4 (12-inch DVI).
PowerBook G4 (12-inch) Troubleshooting - 1 Symptom Charts Symptom Charts How to Use the Symptom Charts The Symptom Char ts included in this chapter will help you diagnose specific symptoms related to the product. The steps to solv e a symptom are listed sequentially .
2 - PowerBook G4 (12-inch) Troubleshooting Symptom Charts 3. Check the signal strength sho wn in the AirP or t status icon in the menu bar . Up to four bars can appear . 4. If the symptom remains, ref er to the Knowledge Base for the latest articles on computer placement and how to optimiz e AirP or t performance.
PowerBook G4 (12-inch) Troubleshooting - 3 Symptom Charts Err or Beeps The computer automatically perf orms a power-on self test when it is turned on after being fully shut down (not a restart). This section describes what to do if beeps are heard dur ing the star tup .
4 - PowerBook G4 (12-inch) Troubleshooting Symptom Charts Hard Driv e Hard drive will not initialize 1. Boot from Software and Restore D VD . Under the File menu, select Disk Utility , and see if the hard drive appears on the list. 2. If no hard drive is f ound in Disk Utility , verify the hard drive cab le connections.
PowerBook G4 (12-inch) Troubleshooting - 5 Symptom Charts Modem No modem dial tone 1. Check that the correct modem is selected in the Netw or k Pref erences pane. In Modem tab , check that sound is not turned off. 2. It is possible that the modem is connecting b ut not generating a sound.
6 - PowerBook G4 (12-inch) Troubleshooting Symptom Charts The optical drive does not eject CD or D VD disc 1. V erify disc is not in use by quitting an y applications that may be using the disc. 2. Press and hold Media Eject ke y at top right cor ner of ke yboard.
PowerBook G4 (12-inch) Troubleshooting - 7 Symptom Charts Sound Distorted sound from speak ers 1. V erify sound is correct with e xter nal speakers/headphones . If sound is correct, replace top case. 2. Check balance in Sound pref erence pane. 3. Replace rear panel assembly with attached speak ers.
8 - PowerBook G4 (12-inch) Troubleshooting Symptom Charts Startup The computer will not power on 1. Make sure that po wer adapter connector is fully inser ted. 2. Remov e any connected peripherals. 3. T r y known-good pow er outlet. 4. T r y known-good pow er adapter and power cord.
PowerBook G4 (12-inch) Troubleshooting - 9 Symptom Charts Display No display , or dim display , but computer appears to operate corr ectly 1. Press F2 to increase the screen brightness setting. 2. Remov e any connected de vices. Allow the battery to charge to at least 10 percent bef ore plugging in external devices .
10 - PowerBook G4 (12-inch) Troubleshooting Symptom Charts 3. Important: Check the n umber of subpixel anomalies with the f ollowing char t: 4. If the number of subpix el anomalies exceeds the acceptab le number listed in the char t, replace the LCD panel.
PowerBook G4 (12-inch) Troubleshooting - 11 Symptom Charts V ideo (RGB adapter) No video on an external de vice 1. Make sure RGB adapter cab le is fully seated. 2. Click "Detect Displa ys" b utton to verify that monitor is being recognized in the Displa ys pref erence pane, and is known-good and suppor ted b y this computer .
12 - PowerBook G4 (12-inch) Troubleshooting Symptom Charts Misc. Symptoms The computer runs with battery , but not with the po wer adapter plugged into wall outlet 1. T r y known-good pow er outlet. 2. T r y known-good pow er adapter and power cord. Note: Verify that power adapter connector glows amber or green.
PowerBook G4 (12-inch) Troubleshooting - 13 Symptom Charts The cursor does not move when y ou are using trackpad 1. V erify that no USB de vice is connected. 2. Boot from a Mac OS system CD to v er ify that it is not a software prob lem. 3. Reset the power manager b y pressing the ke y combination Control-Option-Shift- power .
14 - PowerBook G4 (12-inch) Troubleshooting Symptom Charts 4. Create new Mac OS X user and log in as that user . (So that the customer does not question the new user , remov e the user once disc is verified.
PowerBook G4 (12-inch) Troubleshooting - 15 Symptom Charts Block Diagram: P owerBook G4 (12-inch D VI).
© 2002 Apple Computer, Inc. All rights reserved. Service Source Views PowerBook G4 (12-inch) PowerBook G4 (12-inch DVI).
PowerBook G4 (12-inch) Views - 1 Main Exploded V iew: P owerBook G4 (12-inch) Keyboard Kit 076-0982 T op Case 922-5652 Hard Drive Cable 922-5740 Modem 661-2632 Heatsink with Fan 922-5654 RJ1 1 Modem B.
2 - PowerBook G4 (12-inch) Views Display Exploded V iew: P owerBook G4 (12-inch) Antenna Cable Assembly 922-5721 Right Hinge with Bezel Brace 922-571 1 Display Housing 922-5718 L VDS Cables 922-5720 I.
PowerBook G4 (12-inch) Views - 3 Main Exploded V iew: P owerBook G4 (12-inch D VI) Keyboard Kit 076-0982 T op Case 922-6073 Hard Drive Cable 922-5740 Modem 661-2632 Heatsink 922-6076 RJ1 1 Modem Board.
4 - PowerBook G4 (12-inch) Views Display Exploded V iew: P owerBook G4 (12-inch D VI) Antenna Cable Assembly 922-6074 Right Hinge with Bezel Brace 922-6249 Display Housing 922-6243 L VDS Cable 922-572.
An important point after buying a device Apple G4 (12-INCH DVI) (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Apple G4 (12-INCH DVI) yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Apple G4 (12-INCH DVI) - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Apple G4 (12-INCH DVI) you will learn all the available features of the product, as well as information on its operation. The information that you get Apple G4 (12-INCH DVI) will certainly help you make a decision on the purchase.
If you already are a holder of Apple G4 (12-INCH DVI), but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Apple G4 (12-INCH DVI).
However, one of the most important roles played by the user manual is to help in solving problems with Apple G4 (12-INCH DVI). Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Apple G4 (12-INCH DVI) along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
