Apple G4 (12-INCH DVI) manuale d’uso

© 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 active-matrix display in aluminum alloy enclosure • built-in Bluetooth • slot load optical drive • optional AirPort Extreme Card and Base Station[...]

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 . P owerBook G4[...]

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: • 1.5 mm hex driver (small hex head screwdriver) for the top case and display housing • 4 mm socket wrench or needlenose pliers for the [...]

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 . After you shut do wn the computer , the internal components can[...]

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 . 3. T ur n ov er the computer and place it on a soft cloth.[...]

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. Check the bottom case of the computer , and compare it with the images in this table: Missing plug[...]

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. Columbus, OH. 43215[...]

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. Do not break the seal until you are [...]

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 . Pr ocedure[...]

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 . 5. If a memor y card is[...]

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 . 8. Install the memor y door .[...]

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 . 2. Open the door to the AirP or t slot. 3. If an opt[...]

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. 9. Close[...]

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 . 9. P eel up the keyboard cab le from its adhesive . Using a b[...]

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. • Press the keyboard into place, and install the screws and round stickers. • Install the [...]

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 1.5 mm screwdriver Note: T o organize the scre ws you remov e from the computer , use a tray with divided compar tments (such as a[...]

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. You might want to cover part of the housing with a soft cloth as you remove 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, 16.5 mm long screw at upper right corner near power button • one Hex, 7 mm long screw at upper left corner near microphone • one #0 Phillips, 15 mm long screw in keyboard well ?[...]

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. Although the screw length is the same; the screw has a collar unde[...]

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. Use equal pressure at the front, left, and right cor ners .[...]

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. 11. Important: Do not forcefully remo ve the top case . With the cables still connec[...]

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 • Magnet in keyboard well[...]

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. 15. Install the replacement top case, and reassemb le and test the[...]

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: • Phillips #0 screwdriver • Black stick (or other nonconductive nylon or plastic flat-blade tool) Part Location Pr eliminary Steps Bef ore you begin, remov[...]

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. 2. Tilt the board up and aw ay from the tab at the battery area. 3. Lift up the tape [...]

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 tools: • Phillips #0 screwdriver • Black stick (or other nonconductive nylon or plastic flat-blade tool) Part Location Pr eliminary Steps Bef ore you[...]

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. 2. Remov e the tape, if pro vided, from the cor ner of the optical drive, an[...]

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 flat-blade tool) Note: T o organize the scre ws you remov e from the computer , use a tray with divided compar tments (such as a plastic ice cube tra y[...]

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. T ur n ov er the hard driv e and remov e the two screws from the underside of the brac k et.[...]

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. 7. Remov e the two scre ws and grommets from the opposite side of the drive. 8. Repla[...]

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 tool) Part Location Pr eliminary Steps Bef ore you begin, remov e the following: • Battery • Memory door and memory card • Keyboard • Top case[...]

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. Install the replacement modem, and reassemble and test the computer .[...]

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 nonconductive nylon or plastic flat-blade tool) • 4 mm socket wrench or needlenose pliers Note: T o organize the scre ws you remov e from the compute[...]

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. Replacement Note: When replacing the DC-to-DC board[...]

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 . Be sure to replace it when installing the replacement DC-to-DC board.[...]

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 . 6. Install the replacement DC-to-DC board, and reassemble and test the computer .[...]

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 Phillips screwdriver • #1 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic flat-blade tool) Note: T o organize the scre ws yo[...]

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. A void touching the subw oofer cone as y ou perform this procedure. 2. P eel up the tape if any o[...]

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. P eel up the yellow tape , and disconnect[...]

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. W arning: To avoid bending the heatsin[...]

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 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic flat-blade tool) Note: T o organize the scre ws you remov e from the co[...]

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. 2. P eel up the tape if any of the f ollowing screws are co vered. Remov [...]

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. 6. Use a blac k stick to p[...]

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. • If you are installi[...]

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. • Install the[...]

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 • Black stick (or other nonconductive nylon or plastic flat-blade tool) Note: T o organize the scre ws you remov e from the computer , use a tray with divid[...]

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. Replacement Note: Reserve the tape for securing cables after the frame replacement.[...]

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. 4. Remov e the screw near the right [...]

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 frame, note the initial routing of the cables , as shown in the f ollowing images:[...]

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 • Black stick (or other nonconductive nylon or plastic flat-blade tool) Note: T o organize the scre ws you remov e from the computer , use a tray wi[...]

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. 4. Remov e the screw near the ri[...]

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. T ransf er the fan to the replacement frame . (Refer to "F an" in this ch[...]

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 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic flat-blade tool) Note: T o organize the scre ws you remov e from the compute[...]

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. Replac[...]

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 Phillips screwdriver • Black stick (or other nonconductive nylon or plastic flat-blade tool) Note: T o organize the scre ws you remov e from the com[...]

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. Re[...]

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 (or other nonconductive nylon or plastic flat-blade tool) Note: T o organize the scre ws you remov e from the computer , use a tray with divided compa[...]

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, remov e the following: • Battery • Memory door and memory card • Keyboard • Top case • Reed switch • Hard drive • Modem • DC-to-DC board ?[...]

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. 4. Install the replacement sleep light board, and reassemble[...]

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 flat-blade tool) Note: T o organize the scre ws you remov e from the computer , use a tray with divided compar tments (such as a plastic ice cube tra[...]

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 Extreme Card, if installed • Keyboard • Top case • Reed switch • Hard drive • Modem • DC-to-DC board • Heatsink with fan • Inner frame (w[...]

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. P owerBook G4 (12-inch) P owerBook G4 (12-inch D VI)[...]

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. (The wireless guide requ[...]

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-blade tool) Part Location Pr eliminary Steps Bef ore you begin, remov e the following: • Battery • Memory door and memory card • AirPort Extreme [...]

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. 2. Pull the fl[...]

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 plastic flat-blade tool) Note: T o organize the scre ws you remov e from the computer , use a tray with divided compar tments (such as a plastic ice cub[...]

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. Remov e the two scre ws from the shoulder brack et at the upper r ight corner of the optical drive[...]

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. Replacement Note: When installing the replacement optical dr iv e in the bottom case, mak e sure the slot load bezel is flush against the slot in the side of the bottom case bef ore inst[...]

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. Lift off the brac ket.[...]

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. 7. Remov e the bottom L-shaped EMI brac ket.[...]

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. Use a black stick to press the tabs and remove the slot load bezel. Pull the bezel straig[...]

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 flat-blade tool) Part Location Pr eliminary Steps Bef ore you begin, remov e the following: • Battery • Memory door and memory card • AirPort Extr[...]

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. A void touching the subw oofer as y ou perform this procedure. W ar[...]

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 flat-blade tool) Part Location Pr eliminary Steps Bef ore you begin, remov e the following: • Battery • Memory door and memory card • AirPort Extr[...]

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. W arning: T o av oid excessiv e pressure on the[...]

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. 5. Install the replacement subwoof er , and reassemble and test the comp[...]

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 other nonconductive nylon or plastic flat-blade tool) • Tweezers or needlenose pliers (optional; for routing the AirPort antenna cable) Note: T o org[...]

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 • Inner frame (with RJ11 board attached) • Logic board • DC-in board • Optical drive • Bluetooth • Subwoofer Pr ocedure Important: This procedure[...]

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. 4. Note the routing of the AirP or t antenna. Using a blac k stick, star t to thread the [...]

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. If so, gently twist the bottom case to release it from the display.[...]

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. Replacement Note: When installing the rear panel, hold[...]

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. Replacement Note: Check that the orientation of the cables directed through the rear panel openings are as shown below[...]

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 Extreme Card, if installed • Keyboard • Top case • Reed switch (or hall effect sensor board) • Hard drive • Modem • DC-to-DC board • Heatsink[...]

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 plastic flat-blade tool) • Optional: Credit card (or other thin plastic card) Part Location Pr eliminary Steps Bef ore you begin, remov e the following:[...]

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. Keep the t[...]

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. With the antenna cables still attached, place the display assembly on the tab[...]

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. 5. W arning: The tabs that hold the antenna cabl[...]

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. 9. Install the rep[...]

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 tool Part Location Pr eliminary Steps Bef ore you begin, remov e the following: • Battery • Memory door and memory card • AirPort Extreme Card, if [...]

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. 1. Hold the backing f or the LCD panel in place as yo[...]

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 . Replacement Note: When installing the replacement LCD panel in the display bezel assemb[...]

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 screwdriver • Black stick or other nonconductive plastic or nylon tool Note: T o organize the scre ws you remov e from the computer , use a tray with d[...]

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. Remov e the single screw near the center[...]

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 . 6. Remov e the five scre ws from the bottom edge of the display bez el[...]

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 . 8. Remov e the antenna cables and in verter from the clutch cover .[...]

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 cable on the bottom of the clutch):[...]

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 . F or example , the r ight hinge with bez el brace is remov ed from the[...]

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). Replacement Note: To distinguish the right hinge with bezel brace from the left hinge with bezel brace, note that the right hinge has three flanges on the ou[...]

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 Extreme Card, if installed • Keyboard • Top case • Reed switch (or hall effect sensor board) • Hard drive • Modem • DC-to-DC board • Heat[...]

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 . Y ou might not need to perf or m e very step bef ore the symptom is solv ed. Sta[...]

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. Battery Battery won't charge [...]

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 . Note: The computer has a memor y expansion slot that accepts a 1.25-inch (or sh[...]

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. 3. Replace hard drive cab le[...]

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. Chec k Internet Connect to verify status. 3. V erify known-g[...]

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. If that does not work, hold down Function (fn) k ey and Media Eject k ey . 3. Drag di[...]

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. 4. Replace subwoof er . No sound from speak er(s) [...]

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. 5. Remov e batter y . 6. Press Caps Lock k ey to see if light on k[...]

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 . 3. T r y known-good pow er outl[...]

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. 5. If the number of subpix el anomalies is acceptable , explain to the customer that the pix [...]

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 . 3. T r y kno[...]

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. If the power adapter light is 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 . W arning: Make sure y[...]

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.) 5. Reset PRAM (Press the power b utton, then hold down the Option-Command-P-R ke ys until you hear the startup chime at least one additional[...]

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 Board 922-5731 I/O Ports Shield 922-5820 Reed Switch Board 922-5656 Inner Frame 922-5657 DC-to-DC Board 922-5890 T op Bracket 922-5734 Shoulder Bracket[...]

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 Inverter Board 922-5719 Right Clutch Cap 922-5717 Clutch Cover 922-5715 LCD Panel 661-2791 Left Hinge with Bezel Brace 922-5712 Display Bezel 922-5710 [...]

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 922-5731 I/O Ports Shield 922-6080 Hall Effect Sensor Board 922-6239 Inner Frame 922-5657 DC-to-DC Board 922-6226 T op Bracket 922-6079 Shoulder Brac[...]

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 922-5720 Inverter Board 922-6247 Right Clutch Cap 922-5717 Clutch Cover 922-5715 LCD Panel 661-2791 Left Hinge with Bezel Brace 922-5712 Display Bezel 922-60[...]