Instruction/ maintenance manual of the product M4753 Apple
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Service Source K Po werBook G3 Series M4753.
Service Source K Hot Issues Po werBook G3 Series.
Hot Issues Overview - 1 Overview This chapter is designed to highlight unique or high- priority product issues that you should be aware of before servicing the PowerBook G3 Series computers. This chapter alerts you to important issues and provides links to other areas in the manual where more complete information can be found.
Hot Issues Overview - 2 P owerBook G3 Series: Identifying P owerBook G3 Series Cir cuit Boards Discussion: When replacing PowerBook G3 Series circuit boards it is very important to check the ID codes to verify that you are ordering the correct part.
Hot Issues Overview - 3 • I/O Logic Board: This serial number label is viewable from the opening for the PC Card slots. You don’t need to disassemble the PowerBook. Gently push in the PC Card slot doors and look inside the opening. You should see the serial number/bar code label.
Hot Issues Overview - 4 Exchange Parts Like f or Like Unless directed otherwise in the Service Parts Database, exchange parts like for like. Refer to the following table for the listing of ID Codes.
Hot Issues Overview - 5 . I/O Logic Board Description Service Part # ID Code 2 MB SGRAM, no TV out 661-2058 BKG, DGK, DFL 2 MB SGRAM, TV out 661-2094 D W 6.
Hot Issues Intermittent Video with 13.3” Display - 6 Intermittent Video with 13.3” Display Customers may describe symptoms related to intermittent video when using PowerBook G3 Series computers configured with the 13.
Hot Issues Intermittent Video with 13.3” Display - 7 Service Providers are asked to contact Apple to arrange for the unit to be dispatched to Apple’s Central Product Repair Center. If customers wish, they may contact Apple to arrange this dispatch themselves.
Service Source K Basics Po werBook G3 Series.
Basics Product Overview - 1 Product Overview The PowerBook G3 Series is the first PowerBook to offer build-to-order options that include a choice of microprocessor speed, internal hard disk, on-board RAM, and display size and type.
Basics Product Overview - 2 F eatures The PowerBook G3 Series includes • PowerPC G3 microprocessor running at clock speeds of 233, 250, 266, 292, or 300 MHz • Backside L2 cache of up to1 MB of fas.
Basics Product Overview - 3 circuits • Two expansion bays for batteries, floppy disk drive, CD- ROM drive, DVD-ROM drive, and other IDE or PCI devices • Two CardBus slots that accept one Type III .
Basics System Configurations - 4 System Configurations At introduction in May, 1998, six basic configurations of the PowerBook G3 Series computer were available. With build-to-order options, customers may customize their PowerBook G3 Series computers in a variety of ways.
Basics System Configurations - 5 P owerBook G3 Series configurations intr oduced May , 1998 M6359LL/A M6477LL/A M6481LL/A Display 12.1 STN 12.1 STN 13.
Basics System Configurations - 6 Po werBook G3 Series configurations introduced May , 1998 (cont.) M6357LL/A M6484LL/A M6541LL/A Display 13.3 TFT 14.1 TFT 14.
Basics System Configurations - 7 P owerBook G3 Series configurations intr oduced September , 1998 M6359LL/A M6477LL/A M7229LL/A (October 1, 1998) Display 12.
Basics System Configurations - 8 Po werBook G3 Series configurations introduced September , 1998 (cont.) M7109LL/A M7110LL/A M7111LL/A Display 14.1 TFT 14.
Basics DVD-Video PC Card Option - 9 DVD-Video PC Card Option The DVD-Video PC card is an option that was introduced in July, 1998 for the PowerBook G3 Series. Together with its software, the DVD-Video PC card provides DVD-Video playback capabilities for PowerBook G3 Series computers equipped with a DVD-ROM expansion bay module.
Basics DVD-Video PC Card Option - 1 0 discs, but they can hold up to 25 times the amount of data. This greater capacity allows an entire movie to be stored on a single disc, usually with extra storage space left over. Some DVD-Video discs use the additional storage space for different language tracks, extra video clips, and director’s notes.
Basics Repair Strategy - 11 Repair Strategy In the US only, refer to the latest program notice for special service considerations. Beginning September 1, 1998, parts for the PowerBook G3 Series will be available for order through the Service Price Pages and the AppleOrder and ARIS systems.
Basics Repair Strategy - 12 Service the PowerBook G3 Series computers through module exchange and parts replacement. Customers can request on- site service from an Apple Authorized Service Provider Plus (AASP+), Apple Assurance (US only), or Apple Canada Technical Answerline (Canada only).
Basics Repair Strategy - 13 orders placed through the AppleOrder (US only) or ARIS (Canada only) system. US Ordering US Service providers not enrolled in AppleOrder may fax their orders to Service Provider Support (512-908- 8125) or mail them to Apple Computer, Inc.
Basics Repair Strategy - 14 Canadian Ordering In Canada, all service parts (including the displays) are available through ARIS. Refer to the Service Price Pages or Service Source Online for part numbers and pricing. Canadian Service Providers not enrolled in ARIS may fax their orders to Service Provider Support in Canada (1- 800-903-5284).
Basics Warranty/AppleCare/ARIS - 15 Warranty/AppleCare/ARIS US Only The PowerBook G3 Series computers are covered under the Apple One-Year Global Limited Warranty. The AppleCare Service Plan is also available for these products. Service Providers are reimbursed for warranty and AppleCare repairs made to these computers.
Basics Repair Issues - 16 Repair Issues Pr ev ent Cosmetic Damage The outside plastics of the PowerBook G3 Series computers are vulnerable to scratches and finger marks from skin oil. To prevent cosmetic damage to a customer’s PowerBook, do not wear jewelry when handling the computer, and wear gloves if you have them available.
Basics Repair Issues - 17 Therefore, verify proper installation by pressing on the microprocessor board connector a second time to make sure the board is fully seated. V erify P arts Befor e Placing Orders The PowerBook G3 Series computers offer build-to-order features.
Basics Repair Issues - 18 P owerBook G3 Series P art ID Codes Part Description Service Part Number ID Code or Characteristic Microprocessor Board 233 MHz/0 cache 233 MHz/512K cache 250 MHz/1 M cache 2.
Basics Repair Issues - 19 Note: ID codes are in the last five digits of the serial number on the component or part. To see the I/O logic board serial number, turn the top of the unit toward you, push in on the PC Card door, and look down at the bottom case.
Basics Repair Issues - 20 Micr oprocessor and I/O Logic Board Compatibility I/O logic boards and microprocessor boards shipped in early PowerBook G3 Series computers are not compatible with those shipped later and should not be used together. Refer to the chart below to check compatibility when replacing these parts.
Basics Hard Disks and HFS Plus - 2 1 Hard Disks and HFS Plus PowerBook G3 Series hard disks use a new, improved file format called Mac OS Extended format (HFS Plus). HFS Plus has two benefits: it increases the number of files that can be stored on the hard disk, and it lets the computer work with data more efficiently than previous formats.
Basics Hard Disks and HFS Plus - 2 2 program before attempting to use it. Apple recommends using the utility Disk First Aid, which is included on the system software CD that ships with the PowerBook G3 Series. Norton Utilities W arning: Using Norton Utilities version 3.
Basics Hard Disks and HFS Plus - 2 3 SCSI Disk Mode To use a PowerBook in SCSI disk mode, the computer you are connecting to must be running Mac OS 8.1 or later. If the computer is running an earlier version of system software, no user files will be visible on the PowerBook hard disk.
Basics Expansion Bay Modules - 2 4 Expansion Bay Modules The expansion bays in the PowerBook G3 Series are not the same as those in the PowerBook G3 and PowerBook 3400 computers. Expansion bay modules designed for earlier PowerBook computers will not fit in the expansion bays of the PowerBook G3 Series.
Basics Battery Information - 25 Battery Information The PowerBook G3 Series uses Lithium Ion (LiIon) batteries that charge whenever the external AC adapter is connected. LiIon batteries have battery level indicator lights that tell whether the battery is fully charged, three-fourths charged, one-half charged, one-fourth charged, or empty.
Basics Battery Information - 26 The following are guidelines for properly handling the PowerBook G3 Series batteries: • Handle the battery carefully. Do not drop, puncture, disassemble, mutilate, or incinerate it. • Do not leave a battery in the computer for longer than a week without plugging in the power adapter.
Basics PC Card Handling - 2 7 PC Card Handling The PowerBook G3 Series has two PC Card slots that can hold two PC cards simultaneously. Both slots hold Type I (3.3 mm) and Type II (5 mm) cards, but only the lower slot holds a Type III (10.5 mm) card. When a Type III PC Card is inserted in the lower slot, the upper slot cannot be used.
Basics PC Card Handling - 2 8 • Do not insert anything other than a PC Card into the card slots. • The computer must be on or off in order to eject a PC Card. When the computer is in sleep mode, a PC Card cannot be ejected. • Before you eject a card, make sure nothing is blocking the card’s slot.
Basics View of Front and Right Side - 2 9 View of Front and Right Side The front of the computer includes the: microphone, sleep indicator, brightness control, power button, contrast control (FSTN displays only), volume control (non FSTN displays), PC Card eject buttons, mute button, trackpad, trackpad button, and right expansion bay release lever.
Basics View of Front and Right Side - 3 0 P owerBook G3 Series Front View Left Media Bay Release Lever Speaker Mute Button Contrast Control (non-active matrix Displays) Volume Contol (active matrixDis.
Basics View of Rear and Left Side - 3 1 View of Rear and Left Side The rear of the computer includes the: microphone, printer/ external modem port, ADB port, Sound input port, sound output port, power adapter port, ethernet port, SCSI port, external TV out port (optional), external monitor port, and infrared.
Basics View of Rear and Left Side - 3 2 P owerBook G3 Series Rear View.
Basics Boards and Cards - 3 3 Boards and Cards The PowerBook G3 Series features a modular architecture with four boards and three cards (or four if an internal modem is installed) that support all the necessary functions. The three main boards—I/O Logic Board, Microprocessor Board, and PMU Board—are discussed on the following pages.
Basics Boards and Cards - 3 4 I/O Logic Board The I/O logic board includes all the I/O interfaces, video and display support, and expansion bays. The PC Card cardcage mechanism (CardBus slots) is a separate part that connects to the I/O logic board.
Basics Boards and Cards - 3 5 Micr oprocessor Board The microprocessor board contains the high-speed components: the microprocessor, backside cache, main memory, system ROM, and the IC that contains the memory controller and the PCI bus bridge. The Microprocessor board has two memory card slots.
Basics Boards and Cards - 3 6 PMU Board The PMU board controls the sleep and power on and off sequences, power to the other ICs, and brightness of the display.
Basics - 3 7 Sound Card Hard Drive PMU Board CD-ROM Drive Trackpad Power Supply Card Battery Modem Card (Internal) I/OLogic Board PC Card Ejector Switch Charge Card Microprocessor Board RAM Card Inverter Board Internal Hardwar e Locator * * Location varies with each display size.
Service Source K Specifications Po werBook G3 Series.
Specifications Introduction - 1 Introduction Specifications information for this product can be found in the SpecDatabase, which you can access at Service Source Online (http://service.
Ma c i n t os h P o w e r Boo k G3 Se r i es At first glance, you’ll be struck by the style of these computers. On closer examination, you’ll find their advanced features and outstanding flexibility even more striking. Most impressive of all, though, is their performance.
M a cin t o s h P o w e rB o o k G 3 S e r i e s T echnical Specifications Processor and memory • 233-, 266-, or 300-MHz PowerPC G3 processor • Up to 1MB backside level 2 cache on processor module.
M a cin t o s h P o w e rB o o k G 3 S e r i e s Macintosh PowerBook G3 computers Display 12.1-inch TFT 14.1-inch TFT Pr ocessor speed 233 MHz 233 MHz Backside level 2 cache 512K 512K Backside bus spe.
Ma cin t os h P o w e r B oo k D V D - V i d eo Ki t.
Features Complete DVD solution • DVD-ROM drive (CD compatible) • DVD-Video PC Card • DVD Player software Stunning playback of digital movies • Provides superb digital video and audio • Lets .
2 Home users will enjoy the superb video and audio of the movies now being released on D VD -V ideo discs. And as more educational and entertainment titles become available on D VD discs, you and your children will be able to view more exciting multimedia adventures than ever before.
3 Apple Computer , Inc. 1 Infinite Loop Cupertino, CA 95014 (408) 996-1010 www .apple.com © 1999 Apple Computer , Inc. All rights reserved. Apple, the Apple logo, Mac, Macintosh, PowerBook, and QuickTime are trademarks of Apple Computer , Inc., registered in the U.
Service Source K Troubleshooting PowerBook G3 Series.
Troubleshooting General - 1 General In each product manual on Service Source, you will find Flowcharts and/or Symptom Charts designed to help you diagnose and repair Apple computers. If you have narrowed the problem down to a particular symptom, start with the Symptom Charts.
Troubleshooting Symptom Charts/ Startup - 2 Symptom Charts Startup RAM failure occurs (breaking glass sound after startup chord) 1 Remove top RAM SO DIMM (if present) and restart computer. If startup sequence is normal, replace RAM SO DIMM and retest.
Troubleshooting Symptom Charts/ Startup - 3 Hardware failure occurs (four-tone error chord sequence sounds after startup chord) 1 Turn off the computer and disconnect any external devices. 2 Reset PRAM (during startup, hold Command-Option-P-R keys until the second startup tone is heard).
Troubleshooting Symptom Charts/ Power - 4 Power Computer won’t power up 1 If sleep LED is continually on, backup battery power has been interrupted. Restart computer by holding down Shift-FN- Control and power on key. Wait 5 seconds and press power on key.
Troubleshooting Symptom Charts/ Power - 5 Screen is blank; backlight isn’t on; computer doesn’t respond 1 If sleep LED is continually on, backup battery power has been interrupted. Restart computer by holding down Shift-FN- Control and power on key.
Troubleshooting Symptom Charts/ Power - 6 After you remove battery, some Control Panel settings are different 1 Connect power adapter to unit for 24 hours to see if backup battery is just depleted. (It takes approximately 48 hours to fully charge the backup battery.
Troubleshooting Symptom Charts/ Power - 7 Computer runs when plugged into wall outlet but not on battery power 1 Reset power manager (shift-Fn-Ctrl-Pwr button). 2 Check battery shims (refer to Additional Procedures chapter.) 3 Reseat battery to make sure battery is mating with contacts on I/O logic board.
Troubleshooting Symptom Charts/ Power - 8 Premature low- power warning appears 1 Try known-good, charged battery. 2 Try known-good power adapter. 3 Replace sound card. 4 Replace PMU board 5 Replace PMU cable. 6 Replace power supply card. 7 Replace I/O logic board.
Troubleshooting Symptom Charts/ Power - 9 Battery won’t charge 1 Reset power manager (shift-Fn-Ctrl-Pwr button). 2 Try battery in opposite expansion bay. 3 Verify EMI shield has no contact with outer shield of the power adapter (refer to Additional Procedures, “Right I/O Wall EMI Shield”).
Troubleshooting Symptom Charts/ Power - 10 Battery will not charge unless unit is in sleep mode or shut down 1 Ensure power adapter connected. 2 Verify EMI shield has no contact with outer shield of the power adapter (refer to Additional Procedures, “Right I/O Wall EMI Shield”).
Troubleshooting Symptom Charts/ V ideo - 1 1 Video Note: A certain number of defects are inherent in display technology and vary by many factors, including type of technology. If you suspect that your display contains an abnormal number of defects, call Apple Technical Support.
Troubleshooting Symptom Charts/ V ideo - 1 2 Display is very light or totally white 1 Adjust screen contrast (FSTN units only) and brightness settings. 2 Verify data cable to I/O logic board connection, inverter board connection, and I/O logic board connections.
Troubleshooting Symptom Charts/ V ideo - 1 3 No display, but computer appears to operate correctly Note: If sleep light is blinking and computer is not in sleep mode, reset power manager. 1 Insert disk into floppy drive and press Command–E (eject disk) to verify that computer is working.
Troubleshooting Symptom Charts/ V ideo - 1 4 Backlight doesn’t operate 1 Adjust screen brightness setting. 2 Verify that backlight cable connection is secure. 3 Check display cable, inverter board, and I/O logic board connections. 4 Verify that inverter cable is properly connected and that cable is good.
Troubleshooting Symptom Charts/ S ound - 1 5 Sound No sound from speaker(s) 1 Verify that mute mode is not enabled. 2 Verify that volume setting in Control Panel is above 0. 3 Verify no external speakers or headphones are plugged in. 4 Make sure speaker cable is plugged into sound card.
Troubleshooting Symptom Charts/ F loppy Drive - 16 Floppy Drive Audio and video present, but floppy drive in expansion bay does not operate 1 Verify the floppy disk is inserted squarely in the drive. Push the disk in from the center edge. 2 Try floppy drive in opposite expansion bay.
Troubleshooting Symptom Charts/ F loppy Drive - 17 Disk does not eject 1 Verify the floppy disk is inserted squarely in the drive. Push the disk in from the center edge. 2 Try floppy drive in opposite expansion bay. 3 If floppy drive is in the right expansion bay, switch off system and hold down command shift 1 while you restart.
Troubleshooting Symptom Charts/ F loppy Drive - 18 Disk initialization fails 1 Verify the floppy disk is inserted squarely in the drive. Push the disk in from the center edge. 2 Try floppy drive in opposite expansion bay. 3 Try known-good floppy disk.
Troubleshooting Symptom Charts/ H ard Drive - 19 Hard Drive Internal hard drive does not spin 1 Make sure power adapter is connected. 2 Disconnect external SCSI devices. 3 Check hard drive connection. 4 Check connectors for cracks and replace if damaged.
Troubleshooting Symptom Charts/ CD-ROM Drive/DVD-ROM Drive - 20 CD-ROM Drive/DVD-ROM Drive Drive does not accept disk 1 Verify that Apple CD extensions are on. 2 Replace disc (if dirty or damaged). 3 Reinsert drive. 4 Replace drive. 5 Replace I/O logic board.
Troubleshooting Symptom Charts/ CD-ROM Drive/DVD-ROM Drive - 21 Audio and video present, but drive in expansion bay does not operate 1 Verify that Apple CD extensions are installed.
Troubleshooting Symptom Charts/ P C Card Module (PCMCIA) - 22 PC Card Module (PCMCIA) PC Card won’t eject 1 Make sure computer is not in sleep mode. 2 Make sure PC Card slot is not blocked. 3 Drag PC Card to trash can. 4 Turn the computer off and then try PC Card eject buttons.
Troubleshooting Symptom Charts/ P C Card Module (PCMCIA) - 23 PC Card is inserted but doesn’t appear on desktop Note: Modem and communication cards may not appear on desktop. 1 Try PC Card in the other slot. 2 Verify that correct software for that PC Card is installed.
Troubleshooting Symptom Charts/ P C Card Module (PCMCIA) - 24 PC Card can’t be inserted 1 Wait 8 seconds after a soft eject for PC Card cardcage to reset. 2 Push PC Card in from center of the exposed edge, not off center. 3 Try a different PC Card. 4 Try the other slot.
Troubleshooting Symptom Charts/ DVD-Video PC Card - 2 5 DVD-Video PC Card DVD-Video PC Card is inserted, but icon does not appear on desktop 1 If a generic PC Card icon (without the word “DVD”) appears on desktop, reinstall software from Apple DVD Software CD.
Troubleshooting Symptom Charts/ DVD-Video PC Card - 2 6 MPAA rating at the same level or higher than the title being viewed. 4 Check region code for DVD video title. (Warning message appears.) Note: Some DVD video discs can only play in a specific geographical region.
Troubleshooting Symptom Charts/ DVD-Video PC Card - 2 7 Poor performance of DVD video disc (poor sound or picture) 1 Check the DVD video disc for scratches. 2 Ensure Virtual Memory is set to “off.” 3 Check that Energy Saver control panel has advanced settings for “Power Cycling” and “Reduced Processor Speed” not selected.
Troubleshooting Symptom Charts/ Infrared Communication - 28 Infrared Communication Infrared communication is not working 1 Clean infrared window with soft lint-free cloth. 2 Make sure units are spaced greater than 3 feet but less than 6 feet and at less than a 20 degree angle.
Troubleshooting Symptom Charts/ Modem - 2 9 Modem No dial tone 1 Verify known-good analog (not digital) telephone line. 2 Verify cable is not plugged into Ethernet. Modem is located on the left side of unit, in front of PC card doors. 3 If using Apple Remote Access 3.
Troubleshooting Symptom Charts/ Peripherals - 30 Peripherals After you connect external SCSI device, computer does not boot 1 Verify that device and SCSI chain are terminated correctly. 2 Switch on external SCSI device before starting computer. 3 Check cable connections.
Troubleshooting Symptom Charts/ Peripherals - 3 1 Serial device such as digital camera not recognized by computer 1 Update Serial DMA extension to version 2.1 or higher. 2 Make AppleTalk inactive in the AppleTalk control panel under options and restart unit.
Troubleshooting Symptom Charts/ Peripherals - 3 2 Cursor intermittently does not move or moves erratically Note: User must touch trackpad with the surface of only one finger at a time and point directly down on the trackpad surface. 1 Clean trackpad surface (with computer off, using a non- static inducing material).
Troubleshooting Symptom Charts/ Peripherals - 3 3 Cursor does not move when you are using mouse Note: S-Video and ADB ports look the same; make sure you plug the mouse into the ADB port. 1 Check mouse connection to ADB port. 2 Try a known-good low-power mouse.
Troubleshooting Symptom Charts/ Peripherals - 3 4 Known-good direct- connect printer does not print 1 Reset PRAM. 2 Verify that Chooser and Control Panel settings are correct. (AppleTalk inactive; modem port selected if printer and modem port appear separately.
Troubleshooting Symptom Charts/ Peripherals - 3 5 I/O devices are unrecognized, or garbage is transmitted or received 1 Reset PRAM. 2 Check cables (use Apple cables). 3 Verify that SCSI device is correctly terminated. 4 Verify that SCSI ID select switch setting on external device is unique.
Troubleshooting Symptom Charts/ Miscellaneous - 36 Miscellaneous Sleep light won’t come on 1 Verify that computer is in sleep mode and not powered off. 2 Reset power manager. 3 Replace control buttons cable. Screen goes blank and computer shuts down every few minutes Computer is going into system sleep to conserve battery power.
Troubleshooting Symptom Charts/ Miscellaneous - 37 Intermittent operating problems such as no booting or initialization errors 1 Verify that microprocessor board is properly installed. 2 Press on microprocessor board a second time to make sure the board is fully seated.
Troubleshooting PowerBook G3 SeriesTroubleshooting Flowchart—Startup PowerBook G3 SeriesTroubleshooting Flowchart—Startup Problems START Reset the Power Manager.
Troubleshooting Symptom Charts/Miscellaneous - 39 PowerBook G3 Series Troubleshooting Flowchart (continued) 1. Boot with extensions off. 2. Boot with Disk Tools Update Driver . 3. Replace the hard drive. 4. Replace the I/O logic board. END Does the PowerBook continue to boot to the desktop? No Yes No Yes No Do the trackpad and keyboard function? 1.
Service Source K T ake Apart Po werBook G3 Series.
Take Apart Tools - 1 Tools Use the following tools for procedures in this chapter: • #8 Torx driver (for most screws) • #6 Torx driver (for the PC Card cardcage) • PC Card cardcage alignment too.
Take Apart Screw Matrix - 2 Screw Matrix The screw matrix at left shows the number and type of screws installed in the top and bottom case. For a view showing the screws and their locations within the case, go to the Exploded View chapter. The next page shows the display screws.
Take Apart Screw Matrix - 3 12.1/13.3/14.1 inch Displays Screw Matrix Bumpers (4) T op Brackets (2) Bezel T op (2) Inverter Board (1) Bezel Bottom (2) LCD Display (4) Covers (2) T op of Bezel (2) Side.
Take Apart Cables - 4 Cables Follow these guidelines when working with cables: • Ensure that all cables are routed exactly when reassembling. Use all grooves and/or protrusions to align cabling. If the cable is improperly routed, you may not be able to reassemble the computer, or once reassembled, the computer may fail to function.
Take Apart Expansion Bay Modules - 5 Expansion Bay Modules Before you begin, unplug the AC adapter. Caution: You must remove all modules (batteries and drives) in the expansion bays before performing any take apart procedure. 1 Open the display all the way and support it underneath with something flat.
Take Apart Expansion Bay Modules - 6 Note: If you do not wish to open the display all the way, open the display to a 90° angle. This will prevent the computer from tipping over when the expansion bay modules are removed. 2 Pull the expansion bay eject arm toward you to eject the module.
Take Apart Keyboard - 7 Keyboard Before you begin, remove the following: • AC adapter • Expansion bay modules.
Take Apart Keyboard - 8 1 Place your index fingers inside both expansion bays to locate the keyboard latches. The ribbed keyboard latches are located on the underside of the top case, just below the bottom edge of the keyboard. 2 Slide both keyboard latches toward you.
Take Apart Keyboard - 9 3 Lift the bottom portion of the keyboard up slightly and pull it back to disengage the five metal tabs holding the keyboard in place. Caution: Do not lift the keyboard by the keycaps. Lift from the bottom of the keyboard. (See Additional Procedures in this manual if you need to replace a keycap.
Take Apart Keyboard - 1 0 4 Flip the keyboard over and lay it on top of the palm rests and trackpad. 5 Disconnect the two keyboard cables. Lift up on both ends of the connectors with a pick or nylon tool and gently pull the cables up.
Take Apart Keyboard - 1 1 6 Use a nylon tool to bow the two strain relief cables outward, then pull the cables up to release them. 7 Lift the keyboard out. Note: A keyboard spring was installed in units shipped after October, 1998. The keyboard spring helps to lift the keyboard up when the keyboard release levers are activated.
Take Apart Keyboard - 1 2 8 Use a nylon tool to bow the keyboard spring out. 9 Grasp the keyboard spring finger and pull it straight up to release the keyboard spring. Reassembl y Note: Install the keyboard spring so that the exposed finger faces the user.
Take Apart Heat Sink - 1 3 Heat Sink Before you begin, remove the following: • AC adapter • Expansion bay modules • Keyboard.
Take Apart Heat Sink - 1 4 1 Use a Phillips screwdriver to remove the screw from the top of the heat sink. 2 Use a Phillips screwdriver to remove the screw from the front of the heat sink, to the right of the heat sink handle.
Take Apart Heat Sink - 1 5 3 Lift up on the front handle and pull forward to clear the tabs from the slots at the back of the heat sink. Replacement Note: Align the tabs to the slots before reseating the heat sink. If you have trouble fitting the tabs into the slots, press down on the clutch cover while pushing in on the heat sink.
Take Apart RAM - 16 RAM Before you begin, remove the following: • AC adapter • Expansion bay modules • Keyboard • Heat sink Note: There are two expansion slots for RAM modules on the microprocessor board. To reach the one on the bottom of the board, follow the procedures for removing the microprocessor board later in this chapter.
Take Apart RAM - 17 1 Pull the metal snaps on either side of the RAM card to the sides. The connector will tilt up. 2 Pull the RAM card out. Replacement Note: Line up the notch in the RAM expansion card with the small plastic tab in the RAM expansion slot.
Take Apart Clutch Cover - 1 8 Clutch Cover Before you begin, remove the following: • AC adapter • Expansion bay modules • Keyboard • Heat sink.
Take Apart Clutch Cover - 1 9 1 Insert the flat end of a nylon tool into one end of the clutch cover. 2 Lift up gently to pop up the clutch cover. Replacement Caution: Do not catch the data and inverter cables in the ends of the clutch cover when you replace it.
Take Apart Clutch Cover - 2 0 Replacement Note: Two types of replacement clutch covers are available: • The TFT clutch cover has a volume icon • The FSTN clutch cover has a contrast icon Note the differences shown at left, then ensure you install the correct clutch cover.
Take Apart Display - 21 Display Before you begin, remove the following: • AC adapter • Expansion bay modules • Keyboard • Heat sink • Clutch cover.
Take Apart Display - 22 1 Remove the four T-8 screws behind the I/O door..
Take Apart Display - 23 W arning: The cable connectors on the inverter cable and data cable have exposed metal contacts. Use only a non-metal tool to connect and disconnect these cables or you could short out the system. 2 Use a nylon tool or other non-metal tool to unlock the data cable from the connector.
Take Apart Display - 24 4 Use a nylon tool or other non-metal tool to unlock the inverter cable from the connector. Replacement Note: Align the holes in the inverter cable to the two pegs and press down. This will keep the cable in place when you replace the clutch cover.
Take Apart Hard Drive - 25 Hard Drive Before you begin, remove the following: • AC adapter • Expansion bay modules • Keyboard • Heat sink.
Take Apart Hard Drive - 26 1 Loosen the screw holding the hard drive bracket. Note: The screw is captured, so you will not be able to remove it completely from the hard drive bracket. Replacement Note: Ensure the screw is tightened to the hard drive bracket.
Take Apart Hard Drive - 27 2 Pull up on the left side of the hard drive to release it from its connector. 3 Pull the hard drive to the left. Replacement Note: Align the two tabs to the slots before pushing down on the hard drive connector.
Take Apart Hard Drive - 28 4 Remove the four black screws on top of the hard drive bracket. 5 Remove the two black screws on the hard drive connector and pull it off the hard drive.
Take Apart Hard Drive - 29 6 Remove the hard drive and hard drive insulator from the bracket..
Take Apart Modem - 3 0 Modem Before you begin, remove the following: • AC adapter • Expansion bay modules • Keyboard • Heat sink.
Take Apart Modem - 3 1 1 Remove the Phillips screw. 2 Use a nylon tool to pry the modem up from its connector. 3 Lift up slightly and pull the modem to the right. Replacement Note: When replacing the modem, press down on the modem door connector to ensure that it is seated correctly.
Take Apart Microprocessor Board - 32 Microprocessor Board Before you begin, remove the following: • AC adapter • Expansion bay modules • Keyboard • Heat sink • Hard drive.
Take Apart Microprocessor Board - 33 1 Position a nylon tool under the center of the right side of the board and lift up to release it. 2 Pull the microprocessor board to the right.
Take Apart Microprocessor Board - 34 the computer will still function. However, over time, heat will cause the microprocessor board to lose contact and can cause the system to have intermittent problems such as no booting.
Take Apart Top Case Assembly - 3 5 Top Case Assembly Procedures for removing parts from the top case assembly are detailed on the following pages..
Take Apart Top Case Assembly - 3 6 T op Case Before you begin, remove the following: • AC adapter • Expansion bay modules • Keyboard • Heat sink • Clutch cover • Display • Hard drive •.
Take Apart Top Case Assembly - 3 7 1 Remove the three screws under the clutch cover. Replacement Note: Because the screws can get lost in the case when attempting to reseat them, use a magnetic screwdriver or longnose pliers to place the screws in their holders.
Take Apart Top Case Assembly - 3 8 3 Disconnect the PMU cable..
Take Apart Top Case Assembly - 3 9 4 Find the metal locking clip located on the top case wall near the modem connector. Press on the tab with a flat- blade nylon tool to release it from the metal clip.
Take Apart Top Case Assembly - 4 0 5 Turn the case over and remove the eight screws around the perimeter of the bottom case. Replacement Caution: When reassembling the PowerBook, the two long screws go in the outside holes on the front edge.
Take Apart Top Case Assembly - 4 1 Replacement Caution: Replace the screws in the order shown at left. Do not overtighten the screws. Using a torque screwdriver, tighten the screws to a torque of 2.5 inch pounds. Test the screw tightness by installing a battery in both expansion bays.
Take Apart Top Case Assembly - 4 2 Replacement Note: To make sure the expansion bay flip door is aligned properly, push in on it when you replace the screw near the expansion bay flip door. 6 Turn the case over. Use a nylon tool to separate the two halves of the case.
Take Apart Top Case Assembly - 4 3 8 Disconnect the speaker cable. Replacement Note: To keep the speaker cable from getting caught in the case plastics, pull it forward. After the top case and bottom case are snapped together, tuck the cable into the space above the sound card.
Take Apart Top Case Assembly - 4 4 K eyboard Latch Before you begin, remove the top case..
Take Apart Top Case Assembly - 4 5 1 Lift up on the wire hook with a screwdriver and move it off the anchoring post. Replacement Note: If the wire does not stay down over the anchoring post, bend the wire down slightly to give it a firmer seating.
Take Apart Top Case Assembly - 4 6 the latch under the retaining brackets first. Then slide the latch forward, lift up on the L-shaped wire with a screwdriver, and reseat it.
Take Apart Top Case Assembly - 4 7 PMU Board Before you begin, remove the following: • Top case • Keyboard latch 1 Remove the screw at the front of the PMU board.
Take Apart Top Case Assembly - 4 8 2 Lift the PMU board up and use a nylon tool or other flat-blade tool to disconnect the following cables: • Backup battery cable • Trackpad cable • Control buttons cable • PMU Cable • Keyboard cable Caution: Excessive force can bend pins in the connectors or tear the cables.
Take Apart Top Case Assembly - 4 9 the PMU board to the slots in the case. Then connect the cables in reverse order. Replacement Caution: To avoid bending pins and permanently damaging the connector, align the PMU board double connector cable as one unit.
Take Apart Top Case Assembly - 5 0 T rackpad Before you begin, remove the top case..
Take Apart Top Case Assembly - 5 1 1 Optional step: remove the two screws holding the trackpad switch carrier. 2 Use a nylon tool or pick to release the trackpad cable/switch connector and pull the cable toward you.
Take Apart Top Case Assembly - 5 2 3 Remove the two screws on the trackpad hold down. 4 Lift off the trackpad hold down. 5 Tilt the back of the trackpad toward you and slide it to the right. Replacement Note: To properly position the trackpad, check that the trackpad cable/switch connector is on the side farthest from the trackpad hold down.
Take Apart Top Case Assembly - 5 3 Backup Battery Before you begin, remove the top case. 1 Disconnect the backup battery cable from the PMU board. Replacement Note: You may need to loosen the PMU board to reconnect the cable. See the PMU board instructions in this chapter.
Take Apart Top Case Assembly - 5 4 2 Lift the backup battery cable from its channeling. Replacement Note: Use the flat end of a nylon tool or other flat-blade tool to push the cable securely into its channeling. 3 Use a flat-blade tool to lift up the front edge of the backup battery.
Take Apart Top Case Assembly - 5 5 Note: To fully charge the backup battery, the unit must be connected to AC power for 48 hours. Replacement Note: Ensure that the keyed connector at the end of the backup battery cable is securely connected to the PMU board.
Take Apart Top Case Assembly - 5 6 Contr ol Buttons Cable Before you begin, remove the following: • Top case • Keyboard latch 1 Remove the two screws holding down the sleep reed switch along the left side.
Take Apart Top Case Assembly - 5 7 2 Disconnect the control buttons cable from the PMU board. 3 Remove the two screws holding the top case stiffener and lift the stiffener straight up.
Take Apart Top Case Assembly - 5 8 4 Carefully bow the LED out with the flat end of a nylon tool to release it from its holding tab and pull up on the cable. Replacement Note: Slide the LED carrier down inside the guides, and push it back to seat it over the tab.
Take Apart Top Case Assembly - 5 9 5 Disconnect the PC card eject cable. 6 Gently pull up on the remaining length of the control buttons cable, working it out of its holding tabs. Replacement Note: Start from the end of the cable and line up the slots over the tabs.
Take Apart Top Case Assembly - 6 0 PC Card Eject Switch Before you begin, remove the top case. 1 Remove the two holding screws. 2 Disconnect the PC Card eject cable from the PC Card eject switch.
Take Apart Top Case Assembly - 6 1 Speaker Assembly Before you begin, remove the following: • Top case • Control buttons cable.
Take Apart Top Case Assembly - 6 2 1 Unscrew the two screws on both the left and right speaker housings..
Take Apart Top Case Assembly - 6 3 2 Release the speaker cable from its holding bracket. Replacement Note: Reroute the speaker cable in its original channel or the control buttons cable will not seat properly over it. 3 Gently lift the speakers up. Caution: The front of the speakers are delicate and should not be handled.
Take Apart Top Case Assembly - 6 4 PC Card Cardcage Door Before you begin, remove the top case..
Take Apart Top Case Assembly - 6 5 1 Remove the O-ring from its retaining hooks..
Take Apart Top Case Assembly - 6 6 2 Gently flex one half of the PC Card cardcage door and pull the retaining pins from their slots. 3 Repeat this procedure for the second half of the door.
Take Apart Bottom Case Assembly - 6 7 Bottom Case Assembly Procedures for removing parts from the bottom case assembly are detailed on the following pages.
Take Apart Bottom Case Assembly - 6 8 P ower Supply Card and Charge Card Before you begin, remove the top case. 1 Remove the screw at the front of the power supply card. Replacement Note: Ensure that the screw is aligned directly over the hole and the power supply card is centered properly.
Take Apart Bottom Case Assembly - 6 9 away from the front of the charge card. Replacement Note: Make sure the expansion bay eject arms are back on their tracks before continuing to reassemble the computer. 3 Lift up on the power supply card to release it and the charge card from their connectors.
Take Apart Bottom Case Assembly - 7 0 Fa n Before you begin, remove the top case. 1 Pull up on the fan cable with a pick and gently disconnect the fan cable. 2 Lift the fan up. Replacement Note: Place the fan with the flat edge against the I/O logic board.
Take Apart Bottom Case Assembly - 7 1 Sound Card Before you begin, remove the top case..
Take Apart Bottom Case Assembly - 7 2 Gently press away on the case, then lift the sound card straight up. Replacement Note: Tilt the card to the left to align the connector pins and ensure that the two sound ports are properly aligned with the plastic guides, then press down.
Take Apart Bottom Case Assembly - 7 3 I/O Logic Board Before you begin, remove the following: • Top case • Power supply card • Charge card • Fan • Sound card.
Take Apart Bottom Case Assembly - 7 4 1 Unscrew the standoff located at the front of the I/O logic board. 2 Lift the expansion bay eject arms off their tracks and swing them away from the front of the I/O logic board.
Take Apart Bottom Case Assembly - 7 5 3 Hold the sides of the I/O logic board and lift up, then pull forward. Caution: Do not use the long, narrow part of the I/O logic board as a handle. The board could break at this point. Hold the board by the outer edges.
Take Apart Bottom Case Assembly - 7 6 Note: If you are replacing the I/O logic board, remove the PC Card cardcage from the original I/O logic board and install it on the new I/O logic board.
Take Apart Bottom Case Assembly - 7 7 PC Card Cardcage Before you begin, remove the following: • Top case • I/O logic board.
Take Apart Bottom Case Assembly - 7 8 1 Turn the I/O logic board over and use a #6 Torx driver to remove the two long screws near the center of the board.
Take Apart Bottom Case Assembly - 7 9 3 Turn the I/O logic board back over and pull up on the PC Card cardcage to release it from its double connectors. Replacement Note: If installing a new PC Card cardcage, check that the foam baffle and EMI clip are on the new cardcage.
Take Apart Bottom Case Assembly - 8 0 PC Card Car dcage Replacement Replacement Caution: The PC Card cardcage must be carefully realigned for the PC Cards to work properly. 1 Align the PC Card cardcage to the top of the I/O logic board, matching up the screw holes and double connectors.
Take Apart Bottom Case Assembly - 8 1 2 Turn the I/O logic board over. 3 Replace the two screws closest to the center of the I/O logic board. Tighten torque to 2.0 inch pounds. 4 Align the EMI ground strap so that the small hooks go into the corresponding holes in the I/O logic board.
Take Apart Bottom Case Assembly - 8 2 5 Turn the I/O logic board back over and insert the alignment tool between the inner sides of the PC Card cardcage.
Take Apart Bottom Case Assembly - 8 3 6 Pinch the ends of the cardcage together and turn the I/O logic board back over..
Take Apart Bottom Case Assembly - 8 4 7 Insert the final (fourth) screw. Tighten torque to 2.0 inch pounds. 8 Remove the alignment tool by lifting it straight up.
Take Apart Bottom Case Assembly - 8 5 9 Crease the foam baffle along the perforated line and attach it to the top back edge of the new PC Card cardcage.
Take Apart Bottom Case Assembly - 8 6 I/O Door Before you begin, remove the following: • Top case • I/O logic board Caution: To avoid tearing the I/O wall EMI shields (copper tape at each end of the I/O bracket) gently peel the tape away just until it clears the bracket.
Take Apart Bottom Case Assembly - 8 7 Replacement Note: Tilt the I/O bracket forward and align the four tabs to the slots at the bottom of the I/O bracket and then press the bracket back. 2 Lift up on the I/O door springs on both sides to release the I/O door.
Take Apart Bottom Case Assembly - 8 8 Replacement Note: Two types of replacement I/O door labels are available: • With the S Video symbol • Without the S Video symbol Check the I/O logic board to see if it has an S Video port, then use the appropriate label.
Take Apart Bottom Case Assembly - 8 9 Replacement Note: Two types of replacement I/O brackets are available: • With the S Video symbol • Without the S Video symbol Check the keyboard layout to see that the reset diagram on the label matches it. Check the I/O logic board to see if it has an S Video port, then use the appropriate label.
Take Apart Bottom Case Assembly - 9 0 Expansion Bay Eject Arms Before you begin, remove the top case..
Take Apart Bottom Case Assembly - 9 1 1 Remove the black screw close to the front of the bottom case. 2 Pull the spring slightly and unhook it from its post.
Take Apart Bottom Case Assembly - 9 2 Lockpawl Before you begin, remove the following: • top case • expansion bay eject arm Pull straight up on the lockpawl, taking care that the spring does not fly up. Replacement Note: Seat the spring in the hole in the lockpawl.
Take Apart Bottom Case Assembly - 9 3 Expansion Bay Flip Door Before you begin, remove the top case..
Take Apart Bottom Case Assembly - 9 4 1 Use a pick to pull the springs on each side of the door to the side and out of their sockets. 2 Lift off the door.
Take Apart Bottom Case Assembly - 9 5 Modem Door Before you begin, remove the top case..
Take Apart Bottom Case Assembly - 9 6 1 Gently pull out on one side of the metal brackets and pull the door pins out of their holes. 2 Repeat the same procedure for the modem door spring. Replacement Note: Seat the modem door spring first, then the modem door.
Take Apart 13.3" Display - 97 13.3" Display Take apart procedures for the 13.3” display are detailed on the following pages. Other displays will vary, but all will have similar components. Use the procedures that follow as a guide when repairing other displays.
Take Apart 13.3" Display - 98 Display Housing Before you begin, remove the display from the bottom case. (Refer to “Display” earlier in this chapter.) 1 Use a pick to pry the bumpers and screw covers off the display front. 2 Remove the screws behind the bumpers and screw covers.
Take Apart 13.3" Display - 99 3 Insert the flat end of a nylon tool in the three tab openings at the bottom of the display and press down. Make sure the tabs on the bezel spring clear of the housing seam before proceeding to the next step.
Take Apart 13.3" Display - 100 4 Insert the flat end of a nylon tool in the seam between the front and back halves of the display, at the front curve near the latch. 5 Slide the tool along the seam and press down on the three tabs on each side of the display.
Take Apart 13.3" Display - 101 6 Tilt the display screen up and lift the bezel from the bottom to separate the two halves of the display. Caution: Separating the two halves from the bezel top could cause the holding hooks along the top edge to break.
Take Apart 13.3" Display - 102 In verter Board Before you begin, remove the display housing. 1 Loosen the kapton tape holding the bottom flap of the EMI shield and fold the flap back.
Take Apart 13.3" Display - 103 3 Lift up the right side of the board and disconnect the inverter cable underneath the inverter board. 4 Disconnect the display cable from the left side of the inverter board. Replacement Note: Slide the left side of the inverter board under the black clip to secure it.
Take Apart 13.3" Display - 104 In verter Cable and Clutch Before you begin, remove the following: • Display housing • Inverter board 1 Remove the screw on the clutch and pull the clutch away from its bracket.
Take Apart 13.3" Display - 105 2 Disconnect the microphone cable. Replacement Note: The inverter cable must be wrapped correctly around the clutch or it could get caught in the clutch cover. The cable runs under the clutch and wraps over the clutch from front to back twice.
Take Apart 13.3" Display - 106 bracket hole at the bottom and the notch at the top right of the bracket. There are two holes on the bracket. The screw belongs in the bottom hole. Replacement Caution: To keep from pinching the cable during reassembly, wind the cable tightly and use a piece of Kapton tape to secure the cable to the clutch arm.
Take Apart 13.3" Display - 107 Data Cable and Clutch Before you begin, remove the display housing. 1 Remove the screw on the clutch and pull the clutch away from its bracket. Replacement Notes: The data cable must be wrapped correctly around the clutch or it could get caught in the clutch cover.
Take Apart 13.3" Display - 108 inside the first loop. If properly wound, the bottom of the cable will point to the left. To replace the clutch, align the two pins on the underside of the clutch to corresponding holes in the data cable. Then press the bracket and cable down, fitting the pins into the holes in the bracket.
Take Apart 13.3" Display - 109 2 Use a nylon tool or pick to push the data cable connector on the side of the display to the right and gently pull the connector free. Replacement Note: Use a pick or other tool to help you align the connector and push it into place.
Take Apart 13.3" Display - 110 kapton tape holds the data cable in place. If it does, use the flat end of a nylon tool to loosen the tape. 5 Pull the data cable out through the bottom of the EMI shield, guiding it with a hand inside the EMI shield if necessary.
Take Apart 13.3" Display - 111 Bezel Before you begin, remove the following: • Display housing • Inverter board • Inverter cable and clutch • Data cable and clutch 1 Remove the screws at the top corners of the brackets. 2 Use a nylon tool to separate the bezel from the display.
Take Apart 13.3" Display - 112 Left and Right Display Adapter Brackets Before you begin, remove the following: • Display housing • Inverter board • Inverter cable and clutch • Data cable and clutch • Bezel 1 Turn the display screen- side up.
Take Apart 13.3" Display - 113 EMI Shield Before you begin, remove the following: • Display housing • Inverter board • Inverter cable and clutch • Data cable and clutch • Bezel • Left and right brackets 1 Loosen any kapton tape holding the EMI shield in place.
Take Apart 13.3" Display - 114 Replacement Note: Before fastening the EMI shield with kapton tape, lay the bezel over it to make sure none of the EMI shield shows around the edges of the bezel.
Service Source K Additional Procedures Po werBook G3 Series.
Additional Procedures PMU Flex Cable Gasket Installation - 1 PMU Flex Cable Gasket Installation 1 Peel the paper backing off the gasket. 2 Place the gasket on the PMU flex cable connector, centered inside the handle of the heat sink. 3 Verify that the handle of the heat sink does not rest on the gasket.
Additional Procedures Keycap Replacement - 2 Keycap Replacement Two types of keycaps are on the keyboard. The smaller number, letter, function, and arrow keys can be very easily snapped back in place if they come off. The remaining large keys (such as the spacebar) require more care to replace them.
Additional Procedures Keycap Replacement - 3 2 Insert the top clip so that the side pins face downward. 3 Slide the top clip forward so that its slotted end is caught beneath the black hook on top of the keyswitch location.
Additional Procedures Keycap Replacement - 4 4 Press the top clip down carefully, taking care not to pop out the plunger. 5 Bow out the “arms” of the U-shaped clip to lock the pins inside the U- shaped clip.
Additional Procedures Keycap Replacement - 5 6 Secure the ends of the keycap’s metal bar to the hooks on the keyswitch location. 7 Align the keycap over the locked clips and press down.
Additional Procedures I/O Wall EMI Shield Replacement - 6 I/O Wall EMI Shield Replacement If the copper EMI shield on either side of the I/O wall is torn, it must be replaced. Follow the procedures in this section to replace the I/O wall EMI shields. Replacement Caution: No part of the EMI shield should extend past the area it is covering.
Additional Procedures I/O Wall EMI Shield Replacement - 7 Left I/O W all EMI Shield 1 Align the holes in the top of the EMI shield to the holes in the bottom case. 2 Align the right edge of the shield to the metal edge of the I/O wall. 3 Align the bottom edge between the guides on the bottom case.
Additional Procedures I/O Wall EMI Shield Replacement - 8 Right I/O W all EMI Shield 1 Fold back the tabs on the right side of the mylar shielding attached to the right I/O wall assembly. 2 Fold the ends of the tabs down so the silver sides touch. 3 Locate the black plastic sound card support to the left of the I/O door spring.
Additional Procedures I/O Wall EMI Shield Replacement - 9 left corner snug against the corner of the black sound card support. 5 Smoothe the copper tape straight back so that it runs along the left side of the hooks holding the I/O door spring, ending halfway up the I/O wall.
Additional Procedures Battery Shim Replacement - 1 0 Battery Shim Replacement Battery shims (adhesive strips) ensure that the battery fits properly. The number of battery shims needed depend on the battery serial number.
Additional Procedures Battery Shim Replacement - 1 1 damaged and you are replacing them with new shims. 1 Peel off the damaged shim and rub off any adhesive left on the battery. 2 Remove the new shim’s paper backing. Important: The side shims (used only for batteries with serial numbers ending in AXW or E7L) are scored at one end.
Additional Procedures Battery Shim Replacement - 1 2 3 Carefully align the shim so it is flush with the edge of the battery. Press the shim into place.
Additional Procedures Battery Verification - 13 Battery Verification The Control Strip on the desktop indicates the battery charge and the rate at which the battery is being used. PowerBook G3 Series batteries have level indicator lights that show whether the battery is fully charged, three-fourths charged, one-half charged, or one-fourth charged.
Additional Procedures Battery Verification - 14 must be fully discharged and recharged to calibrate the battery. After this calibration, the lights will report charge levels properly. To determine the actual battery charge, push in the level indicator button to activate the indicator lights.
Additional Procedures Power Adapter Verification - 1 5 Power Adapter Verification No test is available for verifying the power adapter. Try using a new power adapter if the computer cannot run off the existing one.
Additional Procedures Backup Battery Verification - 1 6 Backup Battery Verification The backup battery saves the PRAM and power management information on the logic board when the computer is shut down. To check that the backup battery is working, follow the procedures below.
Additional Procedures Backup Battery Verification - 1 7 6 To recharge the backup battery, leave the PowerBook plugged in for 48 hours. It is okay to use it while it is charging. 7 If the backup battery appears dead or will not charge, replace the backup battery.
Additional Procedures PRAM and Power Manager Reset - 1 8 PRAM and Power Manager Reset Caution: Resetting parameter RAM (PRAM) erases the contents of the RAM disk, if there is one. Resetting PRAM also restores the default settings in most control panels.
Additional Procedures PRAM and Power Manager Reset - 1 9 the startup chime at least one additional time after the initial startup chime. Resetting the P ower Manager Follow these steps to reset the power manager: 1 Make sure the unit is shut down, not in sleep mode.
Service Source K Exploded V ie w Po werBook G3 Series.
Exploded View 1 Modem, 56K , American GV 661-1504 Plug, Modem Port 922-3502 Standoff 922-3367 Battery , Lithium Ion, Rechargeable 661-2069 Case, Bottom 922-3376 ( see Detail B ) Card, Sound 661-.
Exploded View 2 Latch, Kit, Keyboard (right & left) 076-0721 Shield, Stiffener 922-3458 922-3419 Gasket, Speaker Speaker Assembly (right & left) 922-3379 Cover , Speaker 922-3416 Sti.
Exploded View 3 12.1" & 13.3" DISPLA YS 14.1" DISPLA Y Side Bumpers 922-3532 Side Bumpers 922-3395 T op Bumpers 922-3467 Latch,Display (12.1) (13.3) 922-3398 Shield, EMI (12.1) 922-3472 Bracket Magnet Side, (12.1) (13.3) 922-3363 Cable, Flex, Inverter (12.
Exploded View 4 Po werBook G3 Series: Screw Locations f or Case Under Power Supply Board Heatsink I/O Panel Bottom Case Top Case T o PC Card Cage (Under Logic Board) Through Heatsink to Stiffener to B.
An important point after buying a device Apple M4753 (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 M4753 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 M4753 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Apple M4753 you will learn all the available features of the product, as well as information on its operation. The information that you get Apple M4753 will certainly help you make a decision on the purchase.
If you already are a holder of Apple M4753, 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 M4753.
However, one of the most important roles played by the user manual is to help in solving problems with Apple M4753. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Apple M4753 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
