K Service Source PowerBook G3 Series M4753
K Service Source Hot Issues PowerBook G3 Series
Hot Issues Overview - 1 Overview This chapter is designed to highlight unique or highpriority 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. This chapter is not intended to replace other parts of this manual; it merely provides a pointer to pertinent information in those chapters.
Hot Issues Overview - 2 PowerBook G3 Series: Identifying PowerBook G3 Series Circuit 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. The ID codes listed below can be found within the serial numbers that are attached to the circuit boards. They are not part of the whole unit serial number that is attached to the bottom of the PowerBook.
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. You may need to use a small flashlight to see the lettering on the label. The ID codes are printed in one of two ways: – Either the next-to-last three characters in the serial number.
Hot Issues Overview - 4 Exchange Parts Like for 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 .
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 13.3* display. Reported symptoms may include one of the following: • intermittent vertical lines • flickering of the video • the screen may fade to white.
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.
K Service Source Basics PowerBook 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. Note: The PowerBook G3 Series can be distinguished from other PowerBooks by its physical design and the family marketing number M4753 on the bottom product label.
Basics Product Overview - 2 Features Click the icon above to see a 360-degree view and some of the exterior features of the PowerBook G3 Series. 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 fast static RAM • Two standard SO-DIMM expansion slots for SDRAM modules and 32 MB minimum of SDRAM installed, expandable to 192 MB total • Built-in hard disk drives of 2 to 8 GB • Choice of 13.3 or 14.
Basics Product Overview - 3 • • • • • • • • circuits Two expansion bays for batteries, floppy disk drive, CDROM drive, DVD-ROM drive, and other IDE or PCI devices Two CardBus slots that accept one Type III or two Type II CardBus cards or PC Cards Built-in Ethernet port with a 10BaseT connector Infrared link for up to 4 Mbit-per-second IrDA data transfer Built-in modem with 56 kbps data rate in some configurations (optional) Built-in microphone and speakers as well as a line-level stereo input jack and a s
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. In September, 1998, five new configurations were introduced that feature three new processor cards and support resolution switching of the display. An additional configuration was added October 1.
Basics System Configurations - 5 PowerBook G3 Series configurations introduced May, 1998 Display Processor Speed Backside L2 Cache Memory (SDRAM) Video (SGRAM) Hard Disk Drive Floppy Drive CD-ROM Drive K56flex Modem S-video Out M6359LL/A M6477LL/A M6481LL/A 233 MHz 233 MHz 233 MHz 32MB 32MB 32MB 12.1 STN No 2MB 12.1 STN No 2MB 13.
Basics System Configurations - 6 PowerBook G3 Series configurations introduced May, 1998 (cont.) M6357LL/A Display Processor Speed Backside L2 Cache Memory (SDRAM) Video (SGRAM) Hard Disk Drive Floppy Drive CD-ROM Drive K56flex Modem S-video Out 13.3 TFT M6484LL/A 14.1 TFT M6541LL/A 14.
Basics System Configurations - 7 PowerBook G3 Series configurations introduced September, 1998 M6359LL/A M6477LL/A M7229LL/A (October 1, 1998) Display 12.1 STN 12.1 STN 12.
Basics System Configurations - 8 PowerBook G3 Series configurations introduced September, 1998 (cont.) M7109LL/A M7110LL/A M7111LL/A Display 14.1 TFT 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 - 10 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. Click the icon above for the DVD-Video PC Card operation and installation manual. Important: Audio and video quality varies extensively among DVD-Video disc titles.
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. Except for the displays, Apple Authorized Service Providers in the US can now repair PowerBook G3 Series systems. In Canada, Apple Authorized Service Providers can also repair displays.
Basics Repair Strategy - 12 Service the PowerBook G3 Series computers through module exchange and parts replacement. Customers can request onsite service from an Apple Authorized Service Provider Plus (AASP+), Apple Assurance (US only), or Apple Canada Technical Answerline (Canada only). They can also choose carry-in service from an AASP. Ordering Apple Service Providers planning to support the computer systems covered in this manual may purchase Service modules and parts to develop servicing capability.
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 (512-9088125) or mail them to Apple Computer, Inc. Service Provider Support MS 212-SPS Austin, TX 78714-9125 For US inquiries, please call Service Provider Support at 800-919-2775 and select option #1.
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 (1800-903-5284). For Canadian inquiries, please call Service Provider Support at 905-513-5782 and select option #3.
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. For pricing information, refer to “Service Price Pages.” Canada Only The PowerBook G3 Series computers are covered under first-year AppleCare.
Basics Repair Issues - 16 Repair Issues Prevent 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. Wipe fingerprints from the outside plastics with a damp cloth.
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. Verify Parts Before Placing Orders The PowerBook G3 Series computers offer build-to-order features. For this reason, it is mandatory that you either see the part you are replacing, or use diagnostics to identify the part, before you place a parts order. Misidentification of parts may occur if this step is not performed first.
Basics Repair Issues - 18 PowerBook G3 Series Part ID Codes Part Microprocessor Board I/O Logic Board Modem Battery Description Service Part Number 2 MB SGRAM, no TV out, ATI Rage LT 2 MB SGRAM, TV out, ATI Rage Pro 4 MB SGRAM, TV out, ATI Rage Pro 4 MB SGRAM, TV out, ATI Rage LT 661-2058 661-2094 661-2087 661-2019 233 233 250 266 292 300 MHz/0 cache MHz/512K cache MHz/1 M cache MHz/1 M cache MHz/1 M cache MHz/1 M cache 56K, Americas, GV K56flex/V.
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. I/O Logic Board Identification There are two I/O logic boards with both TV out and 4 MB of SGRAM.
Basics Repair Issues - 20 Microprocessor 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 - 21 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. Disk Utilities Some disk utility and disk locking programs manufactured by companies other than Apple are incompatible with HFS Plus.
Basics Hard Disks and HFS Plus - 22 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 Warning: Using Norton Utilities version 3.5.1 or earlier on your hard disk can result in hard disk corruption and loss of all your data. Norton Utilities version 3.5.1 and earlier is not compatible with Mac OS Extended format. See the Symantec Web site at http://www.symantec.
Basics Hard Disks and HFS Plus - 23 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 - 24 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. The left expansion bay accepts both floppy drives and PowerBook G3 Series batteries. The right expansion bay accepts PowerBook G3 Series batteries and the wider 5.
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. If the battery lights blink, there is a problem with the battery. To check the battery charge, press the status button located next to the status lights.
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. • Do not short the battery contacts. • Do not leave the battery in hot locations (such as the trunk of a car).
Basics PC Card Handling - 27 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. The lower PC Card slot has circuitry for handling video signals (zoom video) and DVD-Video PC cards.
Basics PC Card Handling - 28 • 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. • If you want to use the card again immediately, pull it out about an inch more, wait eight seconds, and then push it back in.
Basics View of Front and Right Side - 29 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. The right side includes the security slot and the right expansion bay. The front of the computer is shown on the following page.
Basics View of Front and Right Side - 30 Display Latch Contrast Control (non-active matrix Displays) Microphone Brightness Control Volume Contol (active matrixDisplays) Sleep indicator Mute Button Power button Speaker Speaker Trackpad Security Slot Trackpad Button Left Media Bay Release Lever Right media Bay Release Lever PowerBook G3 Series Front View Media bay CD-ROM or DVD-ROM Drive Inserted
Basics View of Rear and Left Side - 31 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. The left side includes the PC Card slots, internal modem port (optional), and the left expansion bay. Note: The PowerBook G3 Series does not have a hardware reset switch.
Basics View of Rear and Left Side - 32 PowerBook G3 Series Rear View
Basics Boards and Cards - 33 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 - 34 I/O Logic Board Fan Connector Display Data PC Card Display Inverter Cable Cable Cardcage Connector Connector Connector Sound Card Connector Microprocessor Board Connector Hard Drive Connector PMU Board Connector Modem Card Connector Expansion Bay Connector Power Supply Card Connector Expansion Bay Connector The I/O logic board includes all the I/O interfaces, video and display support, and expansion bays.
Basics Boards and Cards - 35 Microprocessor Board Microprocessor Board RAM Card Slot I/O Logic Board Connector (Underside of 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. The top slot is the userreplaceable slot. The slot on the underside of the board is used by the factory.
Basics Boards and Cards - 36 PMU Cable Connectors Trackpad Cable Connector Backup Battery Connector PMU Board Keyboard Cable Connector Control Buttons Cable Connector 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 - 37 Internal Hardware Locator RAM Card Microprocessor Board PC Card Ejector Switch Inverter Board * I/OLogic Board Modem Card (Internal) Sound Card Battery Hard Drive PMU Board Charge Card CD-ROM Drive Power Supply Card Trackpad * Location varies with each display size.
K Service Source Specifications PowerBook 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.info.apple.com) or on Service Source CD. Spec Database at Service Source Online From the Service Source Online home page, click Troubleshoot and Repair to access the main repair procedures page.
Macintosh PowerBook G3 Series 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. These innovative notebook systems outperform comparable Pentium and Pentium II processor–based notebook and desktop systems.* Simply put, the Apple Macintosh PowerBook G3 Series sets new standards for portable design, performance, and value.
Macintosh PowerBook G3 Series Technical Specifications Processor and memory • 233-, 266-, or 300-MHz PowerPC G3 processor • Up to 1MB backside level 2 cache on processor module; 117-, 133-, or 150-MHz dedicated 64-bit backside bus • 66-MHz system bus • Integrated floating-point unit and 64K on-chip level 1 cache (32K data and 32K instruction) • 32MB or 64MB of RAM (3.
Macintosh PowerBook G3 Series Ordering Information For detailed information about currently available configurations, see the chart below. All models also include a built-in keyboard and trackpad; all necessary cables, such as an Ethernet cable, modem cable, power adapter, S-video to composite adapter, and VGA-to-Macintosh adapter; Mac OS 8.
Macintosh PowerBook DVD-Video Kit
Macintosh PowerBook DVD-Video Kit 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 you view movies on an external monitor or television Vivid digital video. Crystal-clear digital audio. Massive storage capacity for data and multimedia. The world is moving to DVD technology, and you can catch the excitement with the Macintosh PowerBook DVD-Video Kit.
Specification Sheet Macintosh PowerBook DVD-Video Kit 2 Home users will enjoy the superb video and audio of the movies now being released on DVD-Video discs. And as more educational and entertainment titles become available on DVD discs, you and your children will be able to view more exciting multimedia adventures than ever before.
Specification Sheet Macintosh PowerBook DVD-Video Kit 3 Technical Specifications PowerBook G3 Series DVD-ROM Expansion Bay Module • Disc formats supported: DVD-ROM, DVD-Video, ISO-9660, CD-ROM, audio CD, Photo CD, CD-R, and CD-i • Access speeds: CD-ROM discs at up to 12x speed, DVD discs at up to 1.5x speed Macintosh PowerBook DVD-Video PC Card • Interface: 16-bit Type II Zoomed Video PC Card (placed in the lower PC Card slot) • Power: 1.5W maximum, 3.
K Service Source 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. Because cures are listed in the order of most likely solution, try the first cure first. Verify whether or not the product continues to exhibit the symptom. If the symptom persists, try the next cure.
Troubleshooting Symptom Charts/Startup - 2 Symptom Charts Startup RAM failure occurs (breaking glass sound after startup chord) 1 2 3 4 Remove top RAM SO DIMM (if present) and restart computer. If startup sequence is normal, replace RAM SO DIMM and retest. Replace bottom RAM SO DIMM and retest. Replace microprocessor board. Replace I/O logic board.
Troubleshooting Hardware failure occurs (four-tone error chord sequence sounds after startup chord) Symptom Charts/Startup - 3 1 2 3 4 5 6 7 8 9 Turn off the computer and disconnect any external devices. Reset PRAM (during startup, hold Command-Option-P-R keys until the second startup tone is heard). Remove expansion module from left expansion bay and restart computer. If startup sequence is normal, insert expansion module and retest. Remove expansion module from right expansion bay and restart computer.
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-FNControl and power on key. Wait 5 seconds and press power on key. If computer doesn’t restart, repeat 3–4 times. 2 Try known-good power adapter. 3 Try known-good, firmly seated, charged battery. Repeat once. 4 Connect power adapter and restart computer in 3–4 minutes.
Troubleshooting Screen is blank; backlight isn’t on; computer doesn’t respond Symptom Charts/Power - 5 1 2 3 4 5 6 7 8 9 10 11 12 13 If sleep LED is continually on, backup battery power has been interrupted. Restart computer by holding down Shift-FNControl and power on key. Wait 5 seconds and press power on key. If computer doesn’t restart, repeat 3–4 times. Restart computer. Disconnect power adapter, remove battery, and restart computer in 3-4 minutes. Check power adapter cable.
Troubleshooting Symptom Charts/Power - 6 After you remove battery, some Control Panel settings are different 1 Power adapter is plugged in, but Control Strip doesn’t indicate adapter is connected 1 2 3 4 5 6 2 3 4 5 6 7 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.) Check backup battery cable and connections. Replace backup battery. Replace PMU card. Replace cable from PMU to I/O logic board.
Troubleshooting Computer runs when plugged into wall outlet but not on battery power Symptom Charts/Power - 7 1 2 Reset power manager (shift-Fn-Ctrl-Pwr button). Check battery shims (refer to Additional Procedures chapter.) 3 Reseat battery to make sure battery is mating with contacts on I/O logic board. 4 Try battery in opposite expansion bay. 5 Try known-good, firmly seated, charged battery. Repeat once. 6 Try known-good power adapter. 7 Replace charge card. 8 Replace PMU board.
Troubleshooting Premature lowpower warning appears Symptom Charts/Power - 8 1 2 3 4 5 6 7 Try known-good, charged battery. Try known-good power adapter. Replace sound card. Replace PMU board Replace PMU cable. Replace power supply card. Replace I/O logic board.
Troubleshooting Battery won’t charge Symptom Charts/Power - 9 1 2 3 Reset power manager (shift-Fn-Ctrl-Pwr button). Try battery in opposite expansion bay. Verify EMI shield has no contact with outer shield of the power adapter (refer to Additional Procedures, “Right I/O Wall EMI Shield”). Caution: When reinstalling the top case, ensure the EMI shield will not make contact with the outer shield of the AC power adapter.
Troubleshooting Battery will not charge unless unit is in sleep mode or shut down Symptom Charts/Power - 10 1 2 Ensure power adapter connected. Verify EMI shield has no contact with outer shield of the power adapter (refer to Additional Procedures, “Right I/O Wall EMI Shield”). Caution: When reinstalling the top case, ensure the EMI shield will not make contact with the outer shield of the AC power adapter. Otherwise when the power adapter is plugged in, the unit will not charge the battery during use.
Troubleshooting Symptom Charts/Video - 11 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. Caution: Do not use a metal screwdriver to reseat the display cables, or shorting could result. Use a plastic or nylon tool.
Troubleshooting Display is very light or totally white An external monitor connected to the PowerBook shows no video Symptom Charts/Video - 12 1 3 4 5 Adjust screen contrast (FSTN units only) and brightness settings. Verify data cable to I/O logic board connection, inverter board connection, and I/O logic board connections. Note: For 13.3” displays only, replace data cable and ensure that the cable is bent at the scored line. Replace inverter board (international only).
Troubleshooting No display, but computer appears to operate correctly Symptom Charts/Video - 13 Note: If sleep light is blinking and computer is not in sleep mode, reset power manager. 1 2 3 4 5 6 7 8 Insert disk into floppy drive and press Command–E (eject disk) to verify that computer is working. Adjust screen brightness setting. Verify display cable, inverter board, PMU connections, and I/O logic board connections. Verify inverter cable. Connect power adapter. Replace inverter board. Replace display.
Troubleshooting Backlight doesn’t operate Symptom Charts/Video - 14 1 2 3 4 5 6 7 8 13.3” screen flickers or shows intermittent vertical lines Adjust screen brightness setting. Verify that backlight cable connection is secure. Check display cable, inverter board, and I/O logic board connections. Verify that inverter cable is properly connected and that cable is good. Verify that cables are not pinched or severed. Replace inverter board (international only). Replace display (international only).
Troubleshooting Symptom Charts/Sound - 15 Sound No sound from speaker(s) 1 2 3 4 5 6 7 Verify that mute mode is not enabled. Verify that volume setting in Control Panel is above 0. Verify no external speakers or headphones are plugged in. Make sure speaker cable is plugged into sound card. Replace sound card. Replace speaker(s). Replace I/O logic board.
Troubleshooting Symptom Charts/Floppy Drive - 16 Floppy Drive Audio and video present, but floppy drive in expansion bay does not operate Read/write/copy error 1 6 7 8 Verify the floppy disk is inserted squarely in the drive. Push the disk in from the center edge. Try floppy drive in opposite expansion bay. Start the system with extensions off. Try known-good floppy disk. Make sure floppy drive is properly seated in expansion bay. Try reseating it one more time to verify connection.
Troubleshooting Disk does not eject Symptom Charts/Floppy Drive - 17 1 2 3 4 5 6 7 Verify the floppy disk is inserted squarely in the drive. Push the disk in from the center edge. Try floppy drive in opposite expansion bay. If floppy drive is in the right expansion bay, switch off system and hold down command shift 1 while you restart. If floppy drive is in the left expansion bay, switch off system and hold down command shift 2 while you restart.
Troubleshooting Disk initialization fails Symptom Charts/Floppy Drive - 18 1 2 3 4 5 6 Verify the floppy disk is inserted squarely in the drive. Push the disk in from the center edge. Try floppy drive in opposite expansion bay. Try known-good floppy disk. Restart with extensions off. Replace floppy drive. Replace I/O logic board.
Troubleshooting Symptom Charts/Hard Drive - 19 Hard Drive Internal hard drive does not spin 1 2 3 4 5 6 Make sure power adapter is connected. Disconnect external SCSI devices. Check hard drive connection. Check connectors for cracks and replace if damaged. Replace hard drive. Replace I/O logic board.
Troubleshooting Symptom Charts/CD-ROM Drive/DVD-ROM Drive - 20 CD-ROM Drive/DVD-ROM Drive Drive does not accept disk 1 2 3 4 5 Verify that Apple CD extensions are on. Replace disc (if dirty or damaged). Reinsert drive. Replace drive. Replace I/O logic board. Volume control does not operate correctly 1 2 3 4 Check Control Panel Sound setting. Verify that mute mode is not enabled. Verify the setting of volume control button. Reinsert drive. Macintosh cannot mount drive 1 2 3 4 Reinsert drive.
Troubleshooting Audio and video present, but drive in expansion bay does not operate Symptom Charts/CD-ROM Drive/DVD-ROM Drive - 21 1 2 3 Verify that Apple CD extensions are installed. Try known-good disc. Replace drive.
Troubleshooting Symptom Charts/PC Card Module (PCMCIA) - 22 PC Card Module (PCMCIA) PC Card won’t eject 1 2 3 4 5 6 7 8 Make sure computer is not in sleep mode. Make sure PC Card slot is not blocked. Drag PC Card to trash can. Turn the computer off and then try PC Card eject buttons. Insert straightened paper clip into hole next to slot. Remove top case and gently push down on PC Card while ejecting. Verify that PC Card is not warped or damaged in any way; if so, replace with new card.
Troubleshooting PC Card is inserted but doesn’t appear on desktop Symptom Charts/PC Card Module (PCMCIA) - 23 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. 3 Replace PC Card. 4 Replace PC Card cardcage. 5 Replace I/O logic board.
Troubleshooting PC Card can’t be inserted Symptom Charts/PC Card Module (PCMCIA) - 24 1 2 3 4 5 PC Card flies out of PC Card cardcage when ejected 1 2 Wait 8 seconds after a soft eject for PC Card cardcage to reset. Push PC Card in from center of the exposed edge, not off center. Try a different PC Card. Try the other slot. Replace PC Card cardcage. Try different PC Card. Use alignment procedure to ensure PC Card cardcage is installed so that PC Card tracks are parallel.
Troubleshooting Symptom Charts/DVD-Video PC Card - 25 DVD-Video PC Card DVD-Video PC Card is inserted, but icon does not appear on desktop 1 2 3 4 5 DVD video disc will not play 1 2 3 If a generic PC Card icon (without the word “DVD”) appears on desktop, reinstall software from Apple DVD Software CD. Use Extensions Manager to ensure that DVD extensions are enabled (select All On). Ensure DVD-Video PC Card is fully inserted in lower PC Card slot.
Troubleshooting Symptom Charts/DVD-Video PC Card - 26 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. For example, discs from Region 1 (US and Canada) cannot be played by a card purchased in Region 4 (Mexico and South America). Movie plays, but special features (such as director’s notes, other languages, etc.
Troubleshooting Poor performance of DVD video disc (poor sound or picture) Symptom Charts/DVD-Video PC Card - 27 1 2 3 4 5 Check the DVD video disc for scratches. Ensure Virtual Memory is set to “off.” Check that Energy Saver control panel has advanced settings for “Power Cycling” and “Reduced Processor Speed” not selected. Use Extensions Manager to disable extensions except for the standard Apple extensions and DVD extensions. Restart the PowerBook. For an audio problem, try playing a regular audio CD.
Troubleshooting Symptom Charts/Infrared Communication - 28 Infrared Communication Infrared communication is not working 1 2 3 4 Clean infrared window with soft lint-free cloth. Make sure units are spaced greater than 3 feet but less than 6 feet and at less than a 20 degree angle. Verify infrared signal is being received by host computer. Replace I/O logic board.
Troubleshooting Symptom Charts/Modem - 29 Modem No dial tone 1 2 4 Verify known-good analog (not digital) telephone line. Verify cable is not plugged into Ethernet. Modem is located on the left side of unit, in front of PC card doors. If using Apple Remote Access 3.0, select Ignore Dial Tone in the modem control panel. If the modem connects with this setting selected, try another phone line. If using a terminal or communications program, enter atx1 to disable tone detection.
Troubleshooting Symptom Charts/Peripherals - 30 Peripherals After you connect external SCSI device, computer does not boot 1 2 3 4 5 6 7 8 Verify that device and SCSI chain are terminated correctly. Switch on external SCSI device before starting computer. Check cable connections. Try known-good SCSI cable. Verify that SCSI ID select switch setting on external device is unique. Try known-good external SCSI device. Try known-good external SCSI device without terminator. Replace I/O logic board.
Troubleshooting Serial device such as digital camera not recognized by computer Symptom Charts/Peripherals - 31 1 2 3 4 5 Cursor does not move when you are using trackpad 1 2 3 4 5 6 Update Serial DMA extension to version 2.1 or higher. Make AppleTalk inactive in the AppleTalk control panel under options and restart unit. Turn on camera after initiating download with camera application. Try different serial device on same port. Replace I/O logic board.
Troubleshooting Cursor intermittently does not move or moves erratically Cursor moves, but clicking trackpad button has no effect Symptom Charts/Peripherals - 32 Note: User must touch trackpad with the surface of only one finger at a time and point directly down on the trackpad surface. 1 2 3 4 5 6 7 Clean trackpad surface (with computer off, using a nonstatic inducing material). Reset power manager. Check trackpad connections. Replace trackpad. Replace trackpad cable. Replace PMU card.
Troubleshooting Cursor does not move when you are using mouse Symptom Charts/Peripherals - 33 Note: S-Video and ADB ports look the same; make sure you plug the mouse into the ADB port. 1 2 3 No response to any key on keyboard 1 2 3 4 5 6 7 Check mouse connection to ADB port. Try a known-good low-power mouse. If the known-good mouse works, clean mouse ball and inside of original mouse and retest. If original mouse still doesn’t work, replace it. Replace I/O logic board. Verify that computer is on.
Troubleshooting Known-good directconnect printer does not print Known-good network printer does not print Symptom Charts/Peripherals - 34 1 2 3 4 5 6 Reset PRAM. Verify that Chooser and Control Panel settings are correct. (AppleTalk inactive; modem port selected if printer and modem port appear separately.)Make AppleTalk inactive in the AppleTalk control panel under options and restart unit. Check cables. Replace printer cable. Try known-good printer. Replace I/O logic board. 1 2 3 4 5 6 Reset PRAM.
Troubleshooting Symptom Charts/Peripherals - 35 I/O devices are unrecognized, or garbage is transmitted or received 1 2 3 4 In disk mode, computer does not display SCSI icon until host is booted, or computer crashes when host is shut down 1 2 5 6 7 3 4 Reset PRAM. Check cables (use Apple cables). Verify that SCSI device is correctly terminated. Verify that SCSI ID select switch setting on external device is unique. Check with vendor for current drivers. Test device with known-good computer.
Troubleshooting Symptom Charts/Miscellaneous - 36 Miscellaneous Sleep light won’t come on 1 2 3 Verify that computer is in sleep mode and not powered off. Reset power manager. Replace control buttons cable. Screen goes blank and computer shuts down every few minutes Computer is going into system sleep to conserve battery power. Adjust sleep delays in Energy Saver Control Panel or connect power adapter. Application seems to run slower after a few seconds Computer is switching to system rest.
Troubleshooting Intermittent operating problems such as no booting or initialization errors Symptom Charts/Miscellaneous - 37 1 2 Verify that microprocessor board is properly installed. Press on microprocessor board a second time to make sure the board is fully seated. Caution: The microprocessor board can be partially inserted and the computer will still function. However, over time, heat will cause an partially seated microprocessor board to lose contact and cause intermittent system problems.
Troubleshooting PowerBook G3 SeriesTroubleshooting Flowchart—Startup PowerBook G3 SeriesTroubleshooting Flowchart—Startup Problems START Reset the Power Manager. Press power button to begin boot sequence. Do you hear the startup tones? No Does any video appear? No 1. Check the display cables. 2. Replace the power supply card. 3. Replace the PMU board. 4. Replace the sound card. Yes Yes 1. Check the volume. 2. Check the keyboard and display cables. 3. Replace the speaker. 4.
Troubleshooting Symptom Charts/Miscellaneous - 39 PowerBook G3 Series Troubleshooting Flowchart (continued) Go to Start 1 Does the No PowerBook continue to boot to the desktop? Does the flashing question mark appear? Yes Yes No 1. Boot with extensions off. 2. Boot with Disk Tools Update Driver. 3. Replace the hard drive. 4. Replace the I/O logic board. 1. Reset PRAM. 2. Boot from Disk Tools. 3. If hard drive appears, reinstall system software. 4.
K Service Source Take Apart PowerBook 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 tool (077-0160) • Phillips screwdriver (for the heat sink and modem) • Flat-blade nylon or plastic tool • Dental pick or hook tool (to open flex connectors) • Torque screwdriver (highly recommended for some replacement procedures) Caution: If you use a magnetic Torx driver, do not use it around the hard drive or the s
Take Apart 1 0 8 Scale = 1 inch 1 3 1 5 3 4 8 2 8 4 Screw Matrix - 2 Screw Matrix 1 Case Assembly Screws (black) Top Case—Heat Sink (1 Phillips) (silver) Top Case—Trackpad Switch Carrier (2) Trackpad Hold Down (2) Control Button Cable (2) Top Case—PC Eject Switch (2) Speakers (2 ea) Stiffener (2) Top Case—Hard Drive Bracket (4) Hard Drive Connector (2) Top Case—Heat Sink (1 Phillips) Top Case— (1 between B&V controls) (2 by speaker grilles) Top Case—Stiffener to Modem (1) Bottom Case—Eject Arms (2)
Take Apart 0 Screw Matrix - 3 1 8 Scale 1 3 1 5 3 4 8 2 8 4 1 12.1/13.3/14.
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. • Check that all cables are properly aligned in the connectors and that the connections are tight. • Handle flex cables carefully.
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 3 Pull the expansion bay eject arm toward you to eject the module. Slide the module out of the expansion bay.
Take Apart Keyboard - 7 Keyboard Before you begin, remove the following: • AC adapter • Expansion bay modules
Take Apart Keyboard - 8 1 2 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. Slide both keyboard latches toward you. The front edge of the keyboard will disengage and pop up.
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.) Replacement Note: Press lightly on the clutch cover to fully insert the five tabs.
Take Apart Keyboard - 10 4 5 Flip the keyboard over and lay it on top of the palm rests and trackpad. 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 - 11 6 7 Use a nylon tool to bow the two strain relief cables outward, then pull the cables up to release them. 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. Service Providers may install the keyboard spring in customers’ units if they wish.
Take Apart Keyboard - 12 8 9 Use a nylon tool to bow the keyboard spring out. Grasp the keyboard spring finger and pull it straight up to release the keyboard spring. Reassembly Note: Install the keyboard spring so that the exposed finger faces the user. Slide the keyboard spring down into the channels located behind the right strain relief connector.
Take Apart Heat Sink - 13 Heat Sink Before you begin, remove the following: • AC adapter • Expansion bay modules • Keyboard
Take Apart Heat Sink - 14 1 2 Use a Phillips screwdriver to remove the screw from the top of the heat sink. 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 - 15 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. Ensure the heat sink is tightly secured.
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 2 Pull the metal snaps on either side of the RAM card to the sides. The connector will tilt up. 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. Push in on the card and then down until the two metal snaps click into place. Note: The 128 MB RAM card fits in the top slot only.
Take Apart Clutch Cover - 18 Clutch Cover Before you begin, remove the following: • AC adapter • Expansion bay modules • Keyboard • Heat sink
Take Apart Clutch Cover - 19 1 2 Insert the flat end of a nylon tool into one end of the clutch cover. 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. This can damage the cables.
Take Apart Clutch Cover - 20 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 Warning: 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 3 Use a nylon tool or other non-metal tool to unlock the data cable from the connector. Remove the cable connector from the logic board.
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. 5 6 Remove the cable connector from the logic board. Pull straight up on the display to separate it from the bottom case.
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 3 Pull up on the left side of the hard drive to release it from its connector. 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 5 Remove the four black screws on top of the hard drive bracket. 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 - 30 Modem Before you begin, remove the following: • AC adapter • Expansion bay modules • Keyboard • Heat sink
Take Apart Modem - 31 1 2 3 Remove the Phillips screw. Use a nylon tool to pry the modem up from its connector. 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. Check that the modem door operates properly.
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 2 Position a nylon tool under the center of the right side of the board and lift up to release it. Pull the microprocessor board to the right. Replacement Note: Align the tabs on the left side of the board with the slots on the top case stiffener, then press down firmly on the right side of the board to seat the connector.
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. Therefore, check proper installation by pressing on the microprocessor board connector a second time to make sure the board is fully seated.
Take Apart Top Case Assembly - 35 Top Case Assembly Procedures for removing parts from the top case assembly are detailed on the following pages.
Take Apart Top Case Assembly - 36 Top Case Before you begin, remove the following: • AC adapter • Expansion bay modules • Keyboard • Heat sink • Clutch cover • Display • Hard drive • Modem or modem plug • Microprocessor board
Take Apart Top Case Assembly - 37 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. 2 Remove the screw that holds the top case to the bottom case at the stiffener. Replacement Note: Tighten the screw to 2.5 inch pounds.
Take Apart Top Case Assembly - 38 3 Disconnect the PMU cable.
Take Apart Top Case Assembly - 39 4 Find the metal locking clip located on the top case wall near the modem connector. Press on the tab with a flatblade nylon tool to release it from the metal clip.
Take Apart Top Case Assembly - 40 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. Installing them in any of the other screw holes could cause the screws to push through the plastics or cause the plastic to dimple.
Take Apart Top Case Assembly - 41 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. If the batteries do not fit properly or the expansion bays will not lock, loosen the closest screw(s) a 1/4 turn and try the test again.
Take Apart Top Case Assembly - 42 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 7 Turn the case over. Use a nylon tool to separate the two halves of the case. Start at one corner and slide the tool along the seam. Lift the rear of the top case first and then lift straight up.
Take Apart Top Case Assembly - 43 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. Replacement Caution: Check that the speaker cable is routed away from the power button and that the power button functions properly.
Take Apart Top Case Assembly - 44 Keyboard Latch Before you begin, remove the top case.
Take Apart Top Case Assembly - 45 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. 2 Lift up on the L-shaped wire with a screwdriver and slide the latch back and out of its retaining brackets.
Take Apart Top Case Assembly - 46 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 - 47 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 - 48 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 - 49 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. Do not install the double connector one connector at a time. Check for proper alignment of the pins before fully seating the double connector.
Take Apart Top Case Assembly - 50 Trackpad Before you begin, remove the top case.
Take Apart Top Case Assembly - 51 1 2 Optional step: remove the two screws holding the trackpad switch carrier. Use a nylon tool or pick to release the trackpad cable/switch connector and pull the cable toward you.
Take Apart Top Case Assembly - 52 3 4 5 Remove the two screws on the trackpad hold down. Lift off the trackpad hold down. 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 - 53 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 - 54 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. Press down on the back end of the battery and slide it forward, out of its housing.
Take Apart Top Case Assembly - 55 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 - 56 Control 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 - 57 2 3 Disconnect the control buttons cable from the PMU board. Remove the two screws holding the top case stiffener and lift the stiffener straight up.
Take Apart Top Case Assembly - 58 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 - 59 5 6 Disconnect the PC card eject cable. 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. Tilt the cable to catch it under the tabs, then press down to snap it into place.
Take Apart Top Case Assembly - 60 PC Card Eject Switch Before you begin, remove the top case. 1 2 Remove the two holding screws. Disconnect the PC Card eject cable from the PC Card eject switch.
Take Apart Top Case Assembly - 61 Speaker Assembly Before you begin, remove the following: • Top case • Control buttons cable
Take Apart Top Case Assembly - 62 1 Unscrew the two screws on both the left and right speaker housings.
Take Apart Top Case Assembly - 63 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. They are easily dented.
Take Apart Top Case Assembly - 64 PC Card Cardcage Door Before you begin, remove the top case.
Take Apart Top Case Assembly - 65 1 Remove the O-ring from its retaining hooks.
Take Apart Top Case Assembly - 66 2 3 Gently flex one half of the PC Card cardcage door and pull the retaining pins from their slots. Repeat this procedure for the second half of the door.
Take Apart Bottom Case Assembly - 67 Bottom Case Assembly Procedures for removing parts from the bottom case assembly are detailed on the following pages.
Take Apart Bottom Case Assembly - 68 Power 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 - 69 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 4 Lift up on the power supply card to release it and the charge card from their connectors. Disconnect the charge card from the power supply card.
Take Apart Bottom Case Assembly - 70 Fan Before you begin, remove the top case. 1 2 Pull up on the fan cable with a pick and gently disconnect the fan cable. Lift the fan up. Replacement Note: Place the fan with the flat edge against the I/O logic board.
Take Apart Bottom Case Assembly - 71 Sound Card Before you begin, remove the top case.
Take Apart Bottom Case Assembly - 72 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. Caution: Be careful not to bend the pins on the connector or you may damage the I/O logic board.
Take Apart Bottom Case Assembly - 73 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 - 74 1 2 Unscrew the standoff located at the front of the I/O logic board. 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 - 75 3 IR Diodes 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. Replacement Note: After repositioning the I/O logic board, check that the IR diode leads are not bent and the IR diodes are aligned properly and facing out the IR window.
Take Apart Bottom Case Assembly - 76 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. Refer to “PC Card Cardcage” procedures in this chapter.
Take Apart Bottom Case Assembly - 77 PC Card Cardcage Before you begin, remove the following: • Top case • I/O logic board
Take Apart Bottom Case Assembly - 78 1 2 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. Remove the two long screws holding the PC Card cardcage EMI ground strap.
Take Apart Bottom Case Assembly - 79 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 - 80 PC Card Cardcage 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. Press down until the connectors engage.
Take Apart Bottom Case Assembly - 81 2 3 4 Turn the I/O logic board over. Replace the two screws closest to the center of the I/O logic board. Tighten torque to 2.0 inch pounds. Align the EMI ground strap so that the small hooks go into the corresponding holes in the I/O logic board. Replace only the lower screw, and tighten to 2.0 inch pounds.
Take Apart Bottom Case Assembly - 82 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 - 83 6 Pinch the ends of the cardcage together and turn the I/O logic board back over.
Take Apart Bottom Case Assembly - 84 7 8 Insert the final (fourth) screw. Tighten torque to 2.0 inch pounds. Remove the alignment tool by lifting it straight up.
Take Apart Bottom Case Assembly - 85 9 Crease the foam baffle along the perforated line and attach it to the top back edge of the new PC Card cardcage. 10 Adhere the EMI finger to the center back of the new PC Card cardcage.
Take Apart Bottom Case Assembly - 86 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. Refer to “I/O Wall EMI Shield Replacement” in Additional Procedures. 1 Tilt the I/O bracket forward and lift it up.
Take Apart Bottom Case Assembly - 87 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. Replacement Note: Check the back of the case to see if the door and the bottom of the case line up on the outside before continuing with reassembly.
Take Apart Bottom Case Assembly - 88 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 - 89 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 - 90 Expansion Bay Eject Arms Before you begin, remove the top case.
Take Apart Bottom Case Assembly - 91 1 2 3 Remove the black screw close to the front of the bottom case. Pull the spring slightly and unhook it from its post. Pull slightly forward on the eject arm and lift the assembly up.
Take Apart Bottom Case Assembly - 92 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. Then push it in as you slide the lockpawl over its post.
Take Apart Bottom Case Assembly - 93 Expansion Bay Flip Door Before you begin, remove the top case.
Take Apart Bottom Case Assembly - 94 1 2 Use a pick to pull the springs on each side of the door to the side and out of their sockets. Lift off the door.
Take Apart Bottom Case Assembly - 95 Modem Door Before you begin, remove the top case.
Take Apart Bottom Case Assembly - 96 1 2 Gently pull out on one side of the metal brackets and pull the door pins out of their holes. 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 2 Use a pick to pry the bumpers and screw covers off the display front. Remove the screws behind the bumpers and screw covers. Replacement Note: The two top screws are shorter than the two bottom screws.
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 5 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. 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 Inverter Board Before you begin, remove the display housing. 1 2 Loosen the kapton tape holding the bottom flap of the EMI shield and fold the flap back. Remove the screw on the right side of the board.
Take Apart 13.3" Display - 103 3 4 Lift up the right side of the board and disconnect the inverter cable underneath the inverter board. 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. The inverter cable lies under the inverter board.
Take Apart 13.3" Display - 104 Inverter 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. The second cable wrap should be inside the first wrap.
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. The cable runs under the clutch and wraps back over the clutch from front to back.
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. There are two holes in the clutch. The screw belongs in the bottom hole.
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. 3 4 Loosen the kapton tape holding the bottom flap of the EMI shield and lift the flap back.
Take Apart 13.3" Display - 110 5 kapton tape holds the data cable in place. If it does, use the flat end of a nylon tool to loosen the tape. 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 2 Remove the screws at the top corners of the brackets. Use a nylon tool to separate the bezel from the display. Start at the bottom side and slide the tool up to the top. Lift the display off the bezel.
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 2 3 Turn the display screenside up. Remove the two screws on each bracket. Pull the brackets away from the display.
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 2 Loosen any kapton tape holding the EMI shield in place. Gently slide the display out of the EMI shield, taking care not to tear the shield.
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.
K Service Source Additional Procedures PowerBook G3 Series
Additional Procedures PMU Flex Cable Gasket Installation - 1 PMU Flex Cable Gasket Installation 1 2 3 4 Peel the paper backing off the gasket. Place the gasket on the PMU flex cable connector, centered inside the handle of the heat sink. Verify that the handle of the heat sink does not rest on the gasket. Press down firmly on the gasket to set the adhesive.
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. 1 With the U-shaped clip in place, use a plastic tool to tuck the rubber plunger under the black circular opening.
Additional Procedures Keycap Replacement - 3 2 3 Insert the top clip so that the side pins face downward. 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 5 Press the top clip down carefully, taking care not to pop out the plunger. Bow out the “arms” of the U-shaped clip to lock the pins inside the Ushaped clip. The locked clips should lie flat.
Additional Procedures Keycap Replacement - 5 6 7 Secure the ends of the keycap’s metal bar to the hooks on the keyswitch location. 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. If the EMI shield is not properly fitted, an electrical short could occur.
Additional Procedures I/O Wall EMI Shield Replacement - 7 Left I/O Wall EMI Shield 1 2 3 4 Align the holes in the top of the EMI shield to the holes in the bottom case. Align the right edge of the shield to the metal edge of the I/O wall. Align the bottom edge between the guides on the bottom case. Rub the EMI shield with the flat edge of a nylon tool to ensure the adhesive is secured to the bottom case.
Additional Procedures I/O Wall EMI Shield Replacement - 8 Right I/O Wall EMI Shield 1 2 3 4 Fold back the tabs on the right side of the mylar shielding attached to the right I/O wall assembly. Fold the ends of the tabs down so the silver sides touch. 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 5 6 left corner snug against the corner of the black sound card support. 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. Rub the EMI shield with the flat edge of a nylon tool to make sure the adhesive on the EMI shield is in firm contact with the bottom case.
Additional Procedures Battery Shim Replacement - 10 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 - 11 damaged and you are replacing them with new shims. 1 2 Peel off the damaged shim and rub off any adhesive left on the battery. 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. Ensure that the scored end wraps securely around the battery corner.
Additional Procedures Battery Shim Replacement - 12 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 Battery Level Indicator Lights Battery Level Indicator Button The Control Strip on the desktop indicates the battery charge and the rate at which the battery is being used. Fully charged 3/4 charged 1/2 charged 1/4 charged 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 - 15 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 - 16 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. 1 Set the date, time, and timezone. 3 Remove the main battery and disconnect the power adapter for 10 minutes. 2 4 5 Perform a Shut Down from the Apple Menu or Special menu.
Additional Procedures Backup Battery Verification - 17 6 7 To recharge the backup battery, leave the PowerBook plugged in for 48 hours. It is okay to use it while it is charging. If the backup battery appears dead or will not charge, replace the backup battery.
Additional Procedures PRAM and Power Manager Reset - 18 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. After you reset PRAM, be sure to check any custom settings for the desktop pattern, memory, network, AppleTalk, trackpad, power conservation, and so forth. Resetting PRAM Reset/zap PRAM from the shutdown state.
Additional Procedures PRAM and Power Manager Reset - 19 the startup chime at least one additional time after the initial startup chime. Resetting the Power Manager Follow these steps to reset the power manager: 1 Make sure the unit is shut down, not in sleep mode. 3 Wait five seconds, then press the power key to turn the unit back on. 2 Press Shift-Fn-Ctrl-Power keys at the same time.
K Service Source Exploded View PowerBook G3 Series
Exploded View 1 PowerBook G3 Series Main Exploded View Cover, Clutch, 12.1 922-3431 Cover, Clutch, 13.3 922-3371 Cover, Clutch, 14.
Exploded View 2 Top Case Assembly (Detail A) Exploded View Door, PC Cardcage 922-3457 Door Retainer, O-Ring 922-1430 Case,Top 922-3378 Battery, Back up 922-3380 922-3419 Gasket, Speaker Speaker Assembly (right & left) 922-3379 Cover, Speaker 922-3416 PC Card Eject Switches 922-3362 Cable, PC Card Eject 922-3414 Shield, ESD, Trackpad 922-3417 Latch, Kit, Keyboard (right & left) 076-0721 Trackpad 922-3388 Cable, Flex, Control Buttons 922-3382 Trackpad Hold Down 922-3418 Cable, Gasket Kit, PMU 076-07
Exploded View 3 PowerBook G3 Series Displays (Detail C) 12.1" & 13.3" DISPLAYS Shield, EMI (12.1) 922-3472 (13.3) 922-3366 Bezel, (13.3) 922-3452 Bezel, (12.1) 922-3454 Side Bumpers 922-3395 Microphone (12.1)(13.3) 922-3397 Bracket Magnet Side, (12.1) (13.3) 922-3363 922-3510 Magnet Board,Inverter w/insulator (12.1) 922-3429 Screw Cover 922-3396 Latch,Display (12.1) (13.3) 922-3398 Clutch, (12.1) (13.3) 922-3368 Display (12.1) STN 661-2053 (12.1) TFT 661-2091 (13.
Exploded View 4 PowerBook G3 Series: Screw Locations for Case Bottom Case I/O Panel Heatsink To PC Card Cage (Under Logic Board) Top of Power Supply Board Under Power Supply Board Top Case Stiffener Through Heatsink to Stiffener to Bottom Case Logic Board Modem Note: Screws shown are actual size in relative locations
