K Service Source PowerBook Duo Dock PowerBook Duo Dock, PowerBook Duo Dock II, PowerBook Duo Dock Plus
K Service Source Basics PowerBook Duo Dock
Basics System Overview - 1 System Overview PowerBook Duo System Duo Dock/ Duo Dock II/ Duo Dock Plus Duo Floppy Adapter Duo MiniDock Duo 210/230 250/270c 280/280c The PowerBook Duo system includes the following products: • PowerBook 200 Series computer (PowerBook Duo 210/230/250/ 270c/280/280c) • PowerBook Duo Dock/Duo Dock II/Duo Dock Plus • PowerBook Duo MiniDock • Floppy Adapter
Basics System Overview - 2 This manual includes information about the Duo Dock, Duo Dock II, and Duo Dock Plus, shown at left. Figure: PowerBook Duo Dock, Duo Dock II, Duo Dock Plus For information about the floppy adapter and the PowerBook 200 Series computers, refer to the PowerBook 200 Series manual. For information about the Duo MiniDock, refer to the PowerBook Duo MiniDock manual.
Basics Repair Strategy - 3 Repair Strategy Service the PowerDuo Dock, Duo Dock II, and Duo Dock Plus 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 request a courier through the Apple Canada Technical Answerline (Canada only). They can also choose carry-in service from an AASP.
Basics Repair Strategy - 4 Large businesses, universities, and K-12 accounts must provide a purchase order on all transactions, including orders placed through the AppleOrder (US only) or ARIS (Canada only) system. USA 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.
Basics Repair Strategy - 5 Canadian Ordering Canadian Service Providers not enrolled in ARIS may fax their orders to Service Provider Support in Canada (1-800-903-5284). For Canadian inquiries, please call Service Provider Support at 905-513-5782 and select option #3.
Basics Warranty/AppleCare/ARIS - 6 Warranty/AppleCare/ARIS US Only The PowerBook Duo Dock, Duo Dock II, and Duo Dock Plus are covered under the Apple One-Year Limited Warranty. The AppleCare Service Plan is also available for these products. Service Providers are reimbursed for warranty and AppleCare repairs made to these products. For pricing information, refer to “Service Price Pages.” Canada Only The PowerBook Duo Dock, Duo Dock II, and Duo Dock Plus are covered under first-year AppleCare.
Basics Warranty/AppleCare/ARIS - 7 Duo Dock Configurations The Duo Dock is available in standard and enhanced configurations.
Basics Warranty/AppleCare/ARIS - 8 These items are options for the standard configuration of the original Duo Dock. See the Specifications chapter for more information. The Duo Dock II is available in this standard configuration: • Math coprocessor (68882 FPU chip) at 33MHz • On-board Ethernet • 1 MB VRAM SIMM • ADB Mouse II The Duo Dock Plus has the same features as the Duo Dock II, but without the FPU and cache.
Basics SCSI Devices - 9 SCSI Devices SCSI ID Numbers The PowerBook Duo Dock supports up to six SCSI devices. To avoid conflicting SCSI ID numbers, assign external SCSI devices numbers between 2 and 6. (The hard drive inside the PowerBook Duo has SCSI ID number 0, and, if installed, the hard drive inside the Duo Dock has ID number 1.) Note: You must use an HDI-30 SCSI system cable to connect external SCSI devices to the Duo Dock.
Basics SCSI Devices - 10 SCSI Termination The PowerBook Duo Dock has a built-in SCSI terminator. To terminate a SCSI chain connected to the dock, attach one external terminator only to the last device in the chain, or connect a SCSI device with built-in termination as the last device in the chain. Note: SCSI devices from other vendors may have built-in terminators. If a SCSI device with a built-in terminator is the last device in the chain, do not add an external terminator to that device.
K Service Source Specifications PowerBook Duo Dock
Specifications Introduction - 1 Introduction You can also find specifications information for this product in the Spec Database, which you can access in one of three ways: — Launch it directly by double-clicking the Apple Spec Database runtime alias at the top level of the Main Service Source CD. — Select "Apple Spec Database" from the Service Source dropdown main menu. — Click the Acrobat toolbar icon for the database, which is near the right end of the toolbar with the letters "SP.
Specifications Processor - 2 Processor Coprocessor, Duo Dock Motorola 68882 FPU chip (optional for standard Duo Dock) 25 MHz Coprocessor, Duo Dock II Motorola 68882 FPU chip and 32K RAM cache 33 MHz Addressing 32-bit internal registers 32-bit address bus 32-bit data bus
Specifications Memory - 3 Memory ROM Configuration ROM (differentiates between docking devices) VRAM Duo Dock 512K of VRAM soldered on logic board 512K VRAM SIMM (optional for standard Duo Dock) VRAM Duo Dock II/ Duo Dock Plus I MB of VRAM soldered on logic board; no slot for additional VRAM expansion
Specifications Disk Storage - 4 Disk Storage Floppy Drive Internal 1.4 MB floppy drive SWIM II MFM/GCR disk controller chip Hard Drive, Duo Dock/Duo Dock II 230 MB, 3.5 in., 1-in.
Specifications I/O Interfaces - 5 I/O Interfaces Docking Connector SCSI Apple Desktop Bus Internal 152-pin processor-direct slot (PDS) connector to PowerBook 32-bit expansion bus HDI-30 SCSI port with 1.5 MB/sec.
Specifications I/O Interfaces - 6 Serial Two RS-422 serial ports; mini DIN-8 connectors NuBus Two internal NuBus slots Two 15 W cards, or one each at 25 W and 5 W Ethernet One internal Ethernet port (on Duo Dock II/Duo Dock Plus only) Sound Video Monaural sound-in port (requires 20 dB attenuation cables and adapters to accommodate audio equipment with line level outputs) Monaural sound output jack for external audio amplifier DB-15 connector supports Macintosh and some VGA monitors (requires 15-pi
Specifications Modem I/O Interfaces - 7 Pass-through telephone jack for optional internal (PowerBook) modem RJ-11 domestic; mini DIN-8 international
Specifications I/O Devices - 8 I/O Devices Keyboard Apple Keyboard II Apple Extended Keyboard Mouse Apple Desktop Bus mouse ADB Mouse II Microphone External electret, omnidirectional microphone Output voltage of 4 mV, peak to peak Speaker 16 Ω magnetic, moving coil speaker
Specifications Video Support Duo Dock Video Support Duo Dock II/Duo Dock Plus I/O Devices - 9 512K of built-in video plus a 512K VRAM SIMM Supports all Macintosh monitors up to 16-in. color Supports VGA monitors (requires NuBus card) 1 MB of VRAM supports up to 32,000 colors 1 MB of on-board VRAM Supports most Macintosh monitors (including Apple Multiple Scan monitors) up to 21-in.
Specifications Electrical - 10 Electrical Power Supply Duo Dock Power Supply Duo Dock II/Duo Dock Plus Universal AC power supply, 85–270 VAC Provides 75 W continuous power, 85 W surge power 47–63 Hz, single phase input line frequency Charges PowerBook Duo batteries and powers Duo Dock Universal AC power supply, 90–270 VAC Provides 75 W continuous power, 85 W surge power 47–63 Hz, single phase input line frequency Charges PowerBook Duo batteries and powers Duo Dock I or II
Specifications Physical - 11 Physical Dimensions Duo Dock Height: 4.75 in. (121 mm) Width: 12.25 in. (311 mm) Depth: 16.25 in. (413 mm) Dimensions Duo Dock II/Duo Dock Plus Height: 6.22 in. (158 mm) Width: 12.75 in. (323.8 mm) Depth: 16.37 in. (415.6 mm) Weight Duo Dock 13.1 lb. (5.95 kg) without hard drive; frame supports up to 60 lb. Weight Duo Dock II/ Duo Dock Plus 15 lb. without hard drive; frame supports up to 85 lb.
Specifications Environmental - 12 Environmental Operating Temperature Duo Dock Operating Temperature Duo Dock II/Duo Dock Plus Storage Temperature Relative Humidity 50–104° F (10–40° C) 50–95° F (10–35° C) -40 to 116° F (-40 to 47° C) 20–95% noncondensing
Specifications Altitude Environmental - 13 0–15,000 ft.
Specifications Other - 14 Other Modem Docking Motor Telephone line interface (DAA) circuitry (domestic) Support for external telephone line interface (DAA) circuitry (international) RJ-11 connector (domestic); mini DIN-8 connector (international) Motorized injection/ejection mechanism draws the PowerBook Duo system into the Duo Dock and ejects the system from the Duo Dock DC motor operates at 5 rpm and provides 16–30 lb.
Specifications Security Other - 15 Key locking device at left front of unit locks PowerBook Duo computer into the Duo Dock Each lock is unique (no master key is available); 125 key combinations Key codes will be released to locksmiths Hook at rear of monitor stand can be used with Kensington mechanism to lock Duo Dock to the desktop
K Service Source Troubleshooting PowerBook Duo Dock
Troubleshooting General - 1 General The Symptom Charts included in this chapter will help you diagnose specific symptoms related to your product. Because cures are listed on the charts 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. (Note: If you have replaced a module, reinstall the original module before you proceed to the next cure.
Troubleshooting Hard Drives May Not Spin Up - 2 Hard Drives May Not Spin Up When inserted into a Duo Dock or Duo Dock II+, your PowerBook 200 Series computer may not start from its internal hard drive. The conditions that can cause the problem include: • The PowerBook 200 Series (Duo) computer and Duo Dock hard drives have been formatted with different versions of HD SC Setup.
Troubleshooting Hard Drives May Not Spin Up - 3 Series computer and the Dock drives with the appropriate formatter is required. Because Apple HD SC Setup does not recognize third party drives, you need to use a third party formatter. To correct the problem, remove one of these conditions: • Use HD SC Setup 7.2.2 or later to update the drivers on both hard drives. This is available from authorized dealers or online services.
Troubleshooting Symptom Charts/Startup - 4 Symptom Charts Startup RAM failure occurs (eight-tone error chord sequence sounds after startup chord) 1 2 Eject PowerBook Duo. Reboot and troubleshoot computer only. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator.
Troubleshooting Hardware failure occurs (four-tone error chord sequence sounds after startup chord) Symptom Charts/Startup - 5 1 2 3 4 Eject PowerBook Duo. Reboot and troubleshoot computer only. Disconnect hard drive data cable, install standard Apple SCSI terminator, and reboot system. If startup sequence is normal, reseat cable, remove terminator, and retest. If failure recurs, replace hard drive. Disconnect floppy drive cable and reboot system. If startup sequence is normal, reseat cable and retest.
Troubleshooting Symptom Charts/Power - 6 Power System doesn’t respond 1 2 3 4 Eject PowerBook Duo. Reboot and troubleshoot computer only. Check all Duo Dock logic board cable connections. Replace Duo Dock power supply. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator. System intermittently crashes or locks up 1 2 3 4 Make sure system software is 7.1 or higher. Make sure software is known-good. Eject PowerBook Duo. Reboot and troubleshoot computer only.
Troubleshooting System doesn’t power up, power supply makes ticking sound, and display has no raster Symptom Charts/Power - 7 1 2 Measure to see if voltages for pins 5 and 7 on the power supply-to-logic board cable fall between the following ranges: • Pin 5 (yellow wire) 5V + or - .5V • Pin 7 (blue wire) 20V + or - .5V If voltages don’t fall within the above ranges, replace Duo Dock power supply.
Troubleshooting Symptom Charts/Video - 8 Video No external display, but computer appears to operate correctly 1 2 3 4 5 6 7 Adjust screen contrast. Reseat video cable. Replace video cable. Replace video interface card (if installed). Replace VRAM SIMM (if installed). Try known-good external display. If now OK, replace and troubleshoot original display. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator.
Troubleshooting Raster or video display problems at external monitor Symptom Charts/Video - 9 1 2 3 4 5 6 7 Reseat video cable. Replace video cable. Replace video interface card (if installed). Replace VRAM SIMM (if installed). Try known-good external display. If now OK, replace and troubleshoot original display. Eject PowerBook Duo. Reboot and troubleshoot computer only. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator.
Troubleshooting Symptom Charts/Floppy Drive - 10 Floppy Drive Audio and video present, but internal floppy drive does not operate 1 2 3 4 5 Try known-good floppy disk. Check floppy drive cable connection. Replace floppy drive cable. Replace floppy drive. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator. Disk ejects while booting; display shows Mac icon with blinking X 1 2 3 4 5 6 Try known-good system disk. Verify that mouse button is not stuck.
Troubleshooting Disk does not eject Symptom Charts/Floppy Drive - 11 1 2 3 4 5 6 Disk initialization fails 1 2 3 4 5 Switch off system. To eject disk, hold mouse button down while you switch system on. Insert straightened paper clip into hole next to drive opening and eject disk. Check floppy drive cable connection. Replace floppy drive cable. Replace floppy drive. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator. Verify that you are using correct media.
Troubleshooting Read/write/copy error Symptom Charts/Floppy Drive - 12 1 2 3 4 5 Verify that you are using correct media. Try known-good floppy disk. Check floppy drive cable connection. Replace floppy drive cable. Replace floppy drive.
Troubleshooting Symptom Charts/Hard Drive - 13 Hard Drive Internal PowerBook hard drive does not operate Eject PowerBook Duo. Reboot and troubleshoot computer only. Internal Duo Dock hard drive does not operate 1 2 3 4 5 6 Check internal hard drive data cable connection. Replace internal hard drive data cable. Run Macintosh Hard Disk Test. Use HD SC Setup to reinitialize drive. Replace internal hard drive. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator.
Troubleshooting Symptom Charts/Hard Drive - 14 Internal hard drive works, but external SCSI device does not 1 2 3 4 Make sure external devices have unique switch settings between 2 and 6. Make sure SCSI chain is terminated at last device only. Replace external SCSI terminator. Troubleshoot external SCSI device. Drive does not appear on desktop 1 2 3 Restart system. Verify that SCSI devices have unique addresses. Use HD SC Setup to initialize drive.
Troubleshooting Symptom Charts/Peripherals - 15 Peripherals Cursor does not move, or moves erratically 1 2 3 4 5 6 Cursor moves, but clicking mouse button has no effect 1 2 Simultaneously press keys to reset computer. Check ADB connections. Inspect and clean mouse, if necessary. If mouse was connected to keyboard, try in ADB port. If OK, replace keyboard. Replace mouse. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator. Replace mouse.
Troubleshooting Symptom Charts/Peripherals - 16 No response to any key on keyboard 1 2 3 4 5 Press key or power button. Check keyboard cable connection. Replace keyboard cable. Replace keyboard. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator. Cannot double-click to open application, disk, or server 1 2 3 Remove any multiple system files. Inspect and clean mouse, if necessary. Clear parameter RAM and reset mouse controls.
Troubleshooting After you connect external SCSI device, computer doesn’t boot Symptom Charts/Peripherals - 17 1 2 3 4 5 6 7 Known-good ImageWriter, ImageWriter II, or LQ does not print 1 2 3 4 5 6 Switch on external SCSI device before starting computer. Check cable connections. Verify that standard Apple terminator terminates SCSI chain. Verify that SCSI select switch setting on external device is unique. Verify operation of internal hard drive. Try known-good external SCSI device.
Troubleshooting Known-good LaserWriter does not print Symptom Charts/Peripherals - 18 1 2 3 4 5 6 Device connected to external modem port doesn’t work 1 2 3 4 5 6 Verify that System is 7.1 or later. Verify that Chooser and Control Panel settings are correct. Check cables. Replace printer interface cable. Try known-good printer. If printer works, troubleshoot network. Refer to Networks manual. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator.
Troubleshooting I/O devices are unrecognized or garbage is transmitted or received Symptom Charts/Peripherals - 19 1 2 3 4 5 6 Verify that System is 7.1 or later. Check cables. Verify that SCSI devices are terminated properly. Verify that SCSI select switch setting on external device is unique between 2 and 6. Test device with known-good computer. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator.
Troubleshooting Symptom Charts/Internal Modem - 20 Internal Modem Internal modem options do not appear in CDEV 1 2 3 4 5 Verify that System is 7.1 or later. Remove and reseat modem interface board. Eject PowerBook and test internal modem. Replace modem interface board. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator.
Troubleshooting Modem does not respond properly to AT command set instructions Symptom Charts/Internal Modem - 21 1 2 3 4 5 6 7 Verify that baud rate and data format settings of communications application are compatible with internal modem and remote modem. Check phone cord connection and operation. Verify that System is 7.1 or later. Remove and reseat modem interface board. Eject PowerBook and test internal modem. Replace modem interface board. Replace Duo Dock logic board.
Troubleshooting Symptom Charts/Internal Modem - 22 Strange mix of characters appears on screen 1 Modem interferes with system sound 1 2 3 4 2 3 4 5 6 7 Verify that baud rate and data format settings of communications application are compatible with internal modem and remote modem. Check phone cord connection and operation. Verify that System is 7.1 or later. Remove and reseat modem interface board. Eject PowerBook and test internal modem. Replace modem interface board. Replace Duo Dock logic board.
Troubleshooting Symptom Charts/Internal Modem - 23 Modem does not respond to incoming call 1 Modem has no sound output 1 2 3 4 Verify that Control Panel volume setting is 1 or higher. Eject PowerBook and test internal modem. Replace modem interface board. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator. Modem connects but does not communicate with remote modem 1 Verify that remote modem needs error correction (error correction is internal modem default).
Troubleshooting Symptom Charts/Miscellaneous - 24 Miscellaneous Can’t insert computer into dock 1 2 3 4 Unlock dock and insert computer. Open I/O door on computer and insert computer. Replace ejector assembly. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator. Can’t eject computer from dock 1 2 Unlock dock and press eject button again. If no power to dock, insert dock’s key or small screwdriver into square hole on side of dock and press to manually eject computer.
Troubleshooting Symptom Charts/Miscellaneous - 25 No sound from speaker 1 2 3 Verify that volume setting in Control Panel is 1 or above. Check speaker-to-logic board cable connection. Replace Duo Dock logic board. Retain VRAM SIMM, math coprocessor, and SCSI terminator. Ejects computer when you attempt to start up from keyboard Shut down PowerBook and insert again.
K Service Source Take Apart PowerBook Duo Dock
Take Apart Cover - 1 Cover Before you begin, • Shut down unit • Eject PowerBook Duo • Disconnect cables 1 Cover Pinch the cover at the horizontal grooves inside the front of the cover and raise the cover to a 45-degree angle.
Take Apart Cover - 2 2 Cover Base Lift the cover straight up and remove it from the base.
Take Apart Cover - 3 Replacement Note: When replacing the cover, first place the notches at the back corners of the cover into notches at the raised corners of the base.
Take Apart Release Mechanism Release Mechanism - 4 Release Mechanism Before you begin, remove the cover.
Take Apart Release Mechanism - 5 Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety.
Take Apart Release Mechanism - 6 1 Latch J18 Connector 2 Using a small, flat-blade screwdriver, release the latch and disconnect the two-wire motor cable from connector J18. Remove the four long screws that secure the release mechanism to the logic board.
Take Apart Release Mechanism - 7 Release Mechanism Subassembly 3 Raise the motor end of the release mechanism and pull the mechanism out of the subassembly.
Take Apart Subassembly - 8 Subassembly Latch J11 Connector Subassembly Before you begin, remove the following: • Cover • Release mechanism Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety. 1 Release the latch and disconnect the power supply cable from connector J11.
Take Apart Subassembly - 9 2 3 Subassembly Using a small flat-blade screwdriver, loosen the two captive screws that secure the subassembly to the base. Note: If you can’t pull back the subassembly, further loosen the two captive screws that secure the subassembly to the base. Pull the subassembly back slightly until it stops.
Take Apart Subassembly - 10 Subassembly 4 5 Base Clear room on the workbench pad beside the base. Lift the subassembly straight up and remove it from the base. Place the subassembly beside the base.
Take Apart Subassembly - 11 Note: If you are replacing a damaged subassembly, first remove the logic board, floppy drive, hard drive (if installed), ejector, and speaker from the subassembly. Refer to the take-apart procedures that follow.
Take Apart Logic Board - 12 Logic Board Logic Board Before you begin, remove the following: • Cover • Release mechanism • Subassembly • Modem interface card (if installed)
Take Apart Logic Board - 13 Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety.
Take Apart Logic Board - 14 1 J8 J11 J13 J17 J15 J14 If installed, disconnect these cable connectors from the logic board: • Power supply cable from J11 • Floppy drive cable from J13 • Speaker cable from J15 • Hard drive power cable from J14 • Eject mechanism cable from J17 • Hard drive data cable from J8
Take Apart Logic Board - 15 Note: You must first release latches on the power supply, speaker, and eject mechanism cables to disconnect them from the logic board connectors.
Take Apart Logic Board - 16 2 Logic Board 3 PDS Connector Subassembly Remove the two remaining logic board mounting screws. Raise the rear of the logic board and pull it out until the PDS connector clears the subassembly. Carefully lift the logic board with connected NuBus adapter straight out of the subassembly.
Take Apart Logic Board - 17 Extraction Tool Math Coprocessor (Optional) SCSI Terminator Note: If you are returning a defective logic board to Apple, be sure to disconnect the NuBus adapter card (see the next topic). Also remove the internal SCSI terminator, VRAM SIMM, math coprocessor, and modem interface card (if installed). Install these parts on the replacement logic board.
Take Apart Logic Board - 18 Note: To remove the optional math coprocessor from the original Duo Dock, use the VGC IC extraction tool (P/N 076-0264). Insert the tongs of the extraction tool into the slotted corners of the chip, and gently squeeze the handle.
Take Apart J12 Connector EMI Shield Adapter Card Mounting Channel Logic Board - 19 Replacement Note: When replacing the logic board, make sure the NuBus adapter card is properly connected to connector J12 and the bottom edge of the adapter card is in the mounting channel beneath the chassis. Replacement Note: All Duo Dock logic boards should include an EMI shield over the video port. If necessary, install the EMI shield on the logic board. Extra EMI shields can be ordered from the Price Pages.
Take Apart NuBus Adapter Card - 20 NuBus Adapter Card Before you begin, remove the following: • Cover • Release mechanism • Subassembly • Modem interface card (if installed) • Logic board NuBus Adapter Card
Take Apart NuBus Adapter Card - 21 Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety.
Take Apart NuBus Adapter Card - 22 Gently rock the NuBus adapter card from side to side and disconnect it from logic board connector J12.
Take Apart Floppy Drive - 23 Floppy Drive Floppy Drive Before you begin, remove the following: • Cover • Release mechanism • Subassembly Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety.
Take Apart Floppy Drive - 24 1 NuBus Card Guide Floppy Drive Cable 2 3 Subassembly Turn over the subassembly and place it on the workbench pad with the floppy drive up. Pull out the plastic NuBus adapter card guide. Disconnect the floppy drive cable connector.
Take Apart Floppy Drive - 25 4 Floppy Drive Floppy Disk Slot 5 Pull out the two rear mounting latches and slightly lift the rear of the floppy drive. Pull out the two front latches and remove the floppy drive from the subassembly. Replacement Note: When replacing the floppy drive in the subassembly mount, first lower the inject/ eject mechanism into the floppy disk slot and then push the drive down until it latches.
Take Apart Floppy Drive - 26 Floppy Drive Cable Clamp Note: If you need to replace a defective floppy drive cable, be sure to note how the cable is routed in the subassembly before removing the cable from the cable clamp.
Take Apart Ejector - 27 Ejector Ejector Before you begin, remove the following: • Cover • Release mechanism • Subassembly • Floppy drive Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety.
Take Apart Ejector - 28 1 2 J17 Connector Ejector Cable Cable Clamp Release the latch and disconnect the ejector cable from connector J17. Pry open the cable clamp and remove the ejector cable.
Take Apart Ejector - 29 3 Ferrite Bead Push down on the flat surface of the ferrite bead and pull open the two halves of the bead. Remove the ferrite bead from the ejector cable.
Take Apart Ejector - 30 4 5 Ejector Cable Mounting Bracket Subassembly Ejector Turn over the subassembly and place it on the workbench pad. Unlace the ejector cable from the subassembly. Remove the ejector from the mounting bracket on the outside edge of the subassembly.
Take Apart Speaker - 31 Speaker Before you begin, remove the following: • Cover • Release mechanism • Subassembly • Floppy drive Speaker Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety.
Take Apart Speaker - 32 1 2 J15 Connector Speaker Cable Cable Clamp Release the latch and disconnect the speaker cable from connector J15. Pry open the cable clamp and remove the speaker cable.
Take Apart Speaker - 33 Cable Clamp 3 4 5 Speaker Turn over the subassembly and place it on the workbench pad. Remove the speaker cable from the subassembly cable clamps. Using a small flat-blade screwdriver, pry the speaker off the outside edge of the subassembly.
Take Apart Power Supply - 34 Power Supply Power Supply Before you begin, remove the following: • Cover • Release mechanism • Subassembly Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety.
Take Apart Power Supply - 35 1 2 Power Supply Base Depress the two plastic latches and push in the power supply at the receptacle. Remove the power supply from the base.
Take Apart Power Supply - 36 Power Supply Cutouts Mounting Tabs Rear Panel Replacement Note: When replacing the power supply, you must first hook the cutouts in the bottom of the power supply over the three mounting tabs in the base. Then firmly push the power supply toward the rear panel until the power supply latches into place.
Take Apart Lock Plug Assembly - 37 Lock Plug Locking Clip Lock Plug Assembly Before you begin, remove the following: • Cover • Release mechanism • Subassembly Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety. Lock Plug Assembly 1 Pull the locking clip off the end of the lock plug.
Take Apart Lock Plug Assembly - 38 2 Push the lock plug out of the base.
Take Apart Base - 39 Base Base To access the base, remove the following: • Cover • Release mechanism • Subassembly • Power supply
K Service Source Upgrades PowerBook Duo Dock
Upgrades VRAM Upgrade - 1 VRAM Upgrade VRAM SIMM Before you begin, remove the cover. Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety.
Upgrades VRAM Upgrade - 2 Note: The PowerBook Duo Dock has 512K of video RAM soldered on the logic board. You can increase the amount of VRAM to 1 MB by installing a 512K VRAM SIMM in the SIMM slot (connector J9). Use only 100 ns or faster VRAM SIMMs. Note: You cannot increase the amount of video RAM on the Duo Dock II, which comes with 1 MB VRAM.
Upgrades VRAM Upgrade - 3 1 VRAM SIMM 2 J9 SIMM Slot Grasp the VRAM SIMM by its edges with the contacts pointing down. Insert the SIMM at an angle into SIMM slot J9. Push back on the SIMM until it snaps into place.
Upgrades Math Coprocessor - 4 Math Coprocessor Duo Dock (only) Math Coprocessor Before you begin, remove the cover. Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety.
Upgrades Math Coprocessor - 5 Note: You can add a Motorola 68882 math coprocessor to the logic board of the original Duo Dock, thereby increasing the overall performance of the Macintosh Duo System. Note: The Duo Dock II includes a math coprocessor and therefore does not need this upgrade.
Upgrades Math Coprocessor - 6 1 FPU Chip 2 68882 Socket Position the math coprocessor with the beveled edge of the chip toward the front of the dock. Align the pins in the socket and gently press the chip into the 68882 socket.
Upgrades Modem Interface Card - 7 Modem Interface Card Modem Interface Card Before you begin, remove the cover. Note: The modem interface card provides telephone line interface (DAA) circuitry for a PowerBook Duo with an internal modem. To address the differences between telephone interfaces and specifications, Apple provides both domestic and international versions of the modem interface card.
Upgrades Modem Interface Card - 8 Caution: The Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Upgrades Modem Interface Card - 9 1 2 Subassembly Modem Interface Card J10 DAA Connector Jumper 3 Remove the modem port cover from the subassembly. Insert the modem interface card telephone jack into the modem port and position the modem interface card on the chassis. Using a small flat-blade screwdriver, press the modem connector onto DAA connector J10. Install the two modem card mounting screws.
Upgrades Modem Interface Card - 10 Important: In Japan only, install a jumper on modem interface connector J3. A jumper is included with every modem interface card.
Upgrades Hard Drive Upgrade - 11 Hard Drive Upgrade Before you begin, remove the following: • Cover • Release mechanism • Subassembly • Floppy drive Hard Drive
Upgrades Hard Drive Upgrade - 12 Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety. Note: Any 3.5-inch, 1inch-high hard drive can be installed in the hard drive bay in the Duo Dock.
Upgrades Hard Drive Upgrade - 13 SCSI Jumper A0 A1 A2 Important: The 230 MB drive ships with a SCSI ID of 0 (no jumpers are on the SCSI select pins). When you install the 230 MB drive in the Duo Dock, you must place a jumper on the drive’s SCSI select pins at location A0. The jumper creates a SCSI ID of 1.
Upgrades Hard Drive Upgrade - 14 Hard Drive Access Hole Cable Clamp Cable Clamp 1 2 3 Cable Clamp Data Cable Cable Clamp Turn over the subassembly and place it on the workbench pad. Position the hard drive in the subassembly as shown. Route the hard drive data cable and the hard drive power cable beneath the floppy drive bay and through the chassis access hole. Hook the cables beneath the cable clamps as shown.
Upgrades Hard Drive Upgrade - 15 4 Drive Mounting Latches Lower the hard drive and push down on the drive until it snaps beneath the mounting latches.
Upgrades Hard Drive Upgrade - 16 5 6 J8 Connector J14 Connector Remove the SCSI terminator from connector J8. Connect the hard drive data cable to connector J8 and the hard drive power cable to connector J14.
Upgrades NuBus Expansion Cards - 17 NuBus Expansion Cards Before you begin, remove the following: • Cover • Release mechanism • Subassembly NuBus Expansion Card
Upgrades NuBus Expansion Cards - 18 Caution: The PowerBook Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/Safety. Note: Install this card only on the original Duo Dock; it is unnecessary on the Duo Dock II, which already supports Ethernet.
Upgrades NuBus Expansion Cards - 19 1 NuBus Card Guide Lower Slot Cover 2 3 Turn over the subassembly and place it on the workbench pad. Pull out the plastic NuBus card guide. Remove the lower NuBus slot cover from the subassembly.
Upgrades Video Connector Bracket NuBus Expansion Cards - 20 NuBus Connectors Note: Install the first NuBus card in the lower slot (which is the upper slot when the dock is upright). That way you won’t have to remove this card if you install a second NuBus card later. 4 5 Position the NuBus card in the lower slot and hook the video connector bracket onto the chassis. Press together the NuBus connectors.
Upgrades NuBus Expansion Cards - 21 NuBus Card Guide Lower Slot 6 Align the lower slot in the NuBus card guide with the edge of the NuBus card. Replace the card guide on the subassembly.
Upgrades Duo Dock II Upgrade - 22 Cover Logic Board Duo Dock II Upgrade Before you begin, remove the following: • Cover • Release mechanism • Subassembly • Modem interface card (if installed)
Upgrades Duo Dock II Upgrade - 23 Caution: The Macintosh Duo Dock contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety. Note: Upgrade the Duo Dock to a Duo Dock II by adding a new logic board and cover. These parts are available individually, not as a kit.
Upgrades Duo Dock II Upgrade - 24 1 Install the Duo Dock II logic board and cover (see “Logic Board” and “Cover”).
K Service Source Exploded View PowerBook Duo Dock
Exploded View 1 PowerBook Duo Dock Exploded View Top Cover 922-0519 (Duo Dock) 815-0459 (Duo Dock II/Plus) Release Mechanism 922-0336 Modem Interface Card 922-0095 (US) 922-0094 (Int'l) Logic Board Assembly 661-1707 (Duo Dock II) 661-1657 (Duo Dock) 661-0975 (Duo Dock Plus) Subassembly 076-0466 (Duo Dock II/Plus) 922-0106 (Duo Dock) NuBus Adapter Board 922-0102 Power Supply 661-1660 Base 815-0458 (Duo Dock) 076-0465 (Duo Dock II/ Duo Dock Plus)
