System Configurations

The PowerBook 1400 Series computers come in the following configurations Processor 117 MHz PowerPC 603e RAM Hard drive 12 MB 750 MB or 16 MB 750 MB CD Display 11.3 dual-scan passive matrix (FSTN) Weight 6.7 lb. with floppy drive slightly more with CD-ROM drive Processor 117 MHz PowerPC 603e RAM Hard drive 16 MB 1 GB CD Display 11.3 active matrix (CTFT) Weight 6.6 lb. with floppy drive slightly more with CD-ROM drive Processor 133 MHz PowerPC 603e with 256 KB L2 cache RAM Hard drive 16 MB 1 GB...

Memory Expansion Cards

Before you continue, remove the following Note For this procedure it is not necessary to disconnect the keyboard cable. Note A PowerBook 1400 may include optional factory-installed or customer-installed memory cards. Note The customer-installed memory card has connectors on the top and bottom, allowing a second card to be plugged in. The second RAM card is supported by a DRAM support on the top case. Caution Be careful not to damage the connectors underneath the card(s) 1 Using a flat-blade...

Memory

Before you begin, refer to the Take-Apart chapter to remove the following Note For this procedure it is not necessary to disconnect the keyboard. If no RAM card is currently installed, slide the edge of the card below the DRAM support Install First RAM Card Below the DRAM Support Install First RAM Card Below the DRAM Support A Second RAM i Card Can Be I Installed Above the DRAM Support A Second RAM i Card Can Be I Installed Above the DRAM Support If you are installing a second RAM card, slide...

Panel

Before performing this take-apart, you only need to remove the power adapter. (You do not need to remove the other modules listed in Modules You Must Remove). Note Two panels graphite and clear are available for this computer. 1 Slide the display latch over and open the display slightly. 2 While holding the latch open by its hook, slide the panel up and off. Replacement Note Notice the square tab inside the top of the panel. As you slide the panel on, move the display latch over so that it can...

Floppy Drive

Note The floppy drive cable referred to in this section is the cable inside of the floppy drive case. Audio and video present, but floppy drive in media bay does not operate 2 Check floppy drive cable connection. Disk ejects while booting display shows Mac icon with blinking X 2 Verify that floppy disk is not locked. 3 Verify that trackpad and trackpad button are working. 4 Verify that keyboard is working. 5 Check floppy drive cable connection. Switch off system and hold trackpad button down...

Microprocessor Unit Daughterboard MHz

Before you continue, remove the following microprocessor unit includes an L2 cache. Note For this procedure it is not necessary to disconnect the keyboard cable. Note If you are removing the daughterboard in order to access the logic board, you will already have removed the long standoffs. 2 Using a 3 16 or 5 mm nut driver, remove the 2 medium and 2 long standoffs. 3 Using a flat-blade screwdriver, carefully pry up and remove the daughterboard unit. Replacement Note Align the top left screw...

Screw Information

There are 16 types of screws in the PowerBook 1400. The chart and information that follows will help you ensure that the correct screws are used in putting the computer back together. Caution To avoid stripping any screw heads, use a metric phillips screwdriver when removing or installing phillips screws. For a visual of the screws (identified by the letters A-W) in their locations, refer to the pages that follow. Note Top 2 may have already been removed in the display assembly take-apart.

Missing HD Reference File

Issue A reference file needed by the system was not installed on the PowerBook 1400's hard drive during the manufacturing process. As a result, if customers use a Disk Utility program (such as Apple's Disk First Aid) that addresses this reference file, they will receive an error message. For example, customers using Disk First Aid to verify their hard drive will see the error message, This is not an HFS disk. The absense of this file does not compromise data integrity in any way and the error...

Video Connector

Powerbook 1400 Ports

Before you begin, refer to the Take-Apart chapter to remove the following Note For this procedure it is not necessary to disconnect the keyboard. The Macintosh PowerBook 8-Bit Color Video-Out Upgrade Kit allows users to connect an external monitor to the PowerBook 1400 Series computer. The upgrade kit consists of a card, 2 small screws, and a video expansion bracket. 2 Using a flat-blade screwdriver, remove the video port dummy plug. Note An optional RAM card may be installed in the nearby...

Battery Information

Warning Use only the battery supplied with the PowerBook 1400 Series or an identical model. Batteries designed for other portable computers may look similar, but they may not work with your computer and may damage it. For a matrix of batteries that work with specific models of the PowerBook family of computers, select the PowerBook Battery Matrix located in Hardware Compatibility Charts. The PowerBook 1 400 Series computers use nickel-metal-hydride (NiMH) batteries. Each battery provides power...

Battery Verification

The Control Strip on the PowerBook 1400 Series desktop indicates the battery charge and the rate at which the battery is being used. To determine the actual battery charge, use a voltmeter 1 Set your voltmeter appropriately so it is able to measure 14 __volts on the DC scale. 2 Hold the positive probe of the voltmeter to the positive battery terminal and the negative probe to the negative terminal. 3 A fully charged battery measures 14 volts. Note The system shuts down at 1 2 volts for the NiMh...

Center Hinge Cover

No additional removals are necessary before continuing Note The center hinge cover is easily scratched. Remove it carefully. Insert a flat-blade screwdriver into one side of the center hinge cover and raise the cover slightly. Insert the screwdriver into the opening on each side of the center lip and disengage each tab. Close the display before installing the center hinge cover. Install the center hinge cover so the lip faces the display.

Video

Partial or full row of pixels is always on or never comes on in an active matrix display Display is very light or totally white 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. 1 Check display and backlight cables and connections. 1 Adjust screen contrast and brightness settings. 2 Verify cable, inverter board, and...

Parts Identification

The door used on the 6x and 8X drive mechanism is Apple Service Part number 922-2531, Door, CD-ROM, PB1400. This part is now listed as a Replacement Part and is covered under warranty. Service Providers will receive a tier one labor reimbursement for replacing the CD-ROM Door. The door used on the 12X drive mechanism is Apple Service Part number 922-3331, Door, CD-ROM, PB1400. This 1 additional screv located left of center on bottom of 1 2x drive only. part is also listed as a Replacement Part...

Miscellaneous

Screen goes blank and computer shuts down every few minutes Application seems to run slower after a few seconds Hard drive is slow to respond, or screen goes blank too often 1 Verify that computer is in sleep mode and not powered off. 2 Reset power manager. See Power Manager and PRAM Reset in Additional Procedures. Computer is going into system sleep to conserve battery power. Adjust sleep delays in Control Panel or connect power adapter. Computer is switching to system rest. If system rest is...

PRAM and Power Manager Reset

Resetting the PRAM also resets the power manager. Note that resetting the PRAM erases the contents of the RAM disk, if there is one. Resetting the PRAM also restores the default settings in most control panels. After you reset the PRAM, be sure to check any custom settings for the desktop pattern, memory, network, AppleTalk, trackpad, power conservation, and so forth. Follow these steps to reset the PRAM 1 Making sure that the Caps Lock key is not down, restart the computer. Immediately after...

Logic Board Identification

Issue There are two logic boards with ROM version 3 that could be used in the PowerBook 1400, 117MHz and the PowerBook 1400, 133 MHz units. Because dealers must return the same part they ordered to receive reimbursement, it is important to properly identify the logic board before ordering a replacement. Part Number 661-1 188 has ROM U3 Low, 341S0203 and ROM U4 High, 341S0204 . It works in PowerBook 1400, 117 MHz and 133 MHz units. Part number 661-1381 has ROM U3 Low, 341S0364 and ROM U4 High,...

Exploded View

Hard Drive IDE, 2.5 750 MB 661-0957 1 GB 661-1245 I O Door 922-2410 i R Window PCMCIA Door 922-2587 Foot L 922-2571 R 922-2572 Battery niMh 922-2420 The I R window is part of the bottom case. Trackpad Button 922-2538 Trackpad Cable 922-2423 Trackpad Board 922-2465 Trackpad EMI Shield 922-2537 Customer RAM 661-1196 8 MB Factory RAM 661-1293 8 MB 661-1292 4 MB CD-ROM Drive 6x 661-1286 8x 661-1426 The I R window is part of the bottom case. CD-ROM Drive 6x 661-1286 8x 661-1426

Symptom Charts

Remove RAM card if present and restart computer. If startup sequence is normal, replace RAM card and retest. Reseat RAM card and check connection. Hardware failure occurs four-tone error chord sequence sounds after startup chord Reset PRAM. See Power Manager and PRAM Reset in Additional Procedures. Remove floppy drive from media bay and restart computer. If startup sequence is normal, insert floppy drive and retest. Replace floppy mechanism. Disconnect hard drive cable from hard drive and...

Floppy Drive Assembly

Powerbook 1400 Battery

Reminder You should have already removed the floppy drive from its compartment. See Modules You Must Remove. 1 Remove the 9 screws from the outer casing of the floppy drive. Disconnect the floppy drive cable from the floppy drive board. Lift the drive out of the bottom cover and disconnect the other end of the cable. Remove the screw from the floppy drive board and lift off the board. Before you continue, remove the following Caution Avoid touching the sensitive wires on the nearby PCMCIA eject...

Trackpad

Ferrite Bead

Before you continue, remove the following 1 Remove the 2 screws from the EMI shield and lift off the shield. Caution Flex cables tear easily handle them carefully. 2 Lift the right trackpad cable connector off its 2 posts and disconnect it from the backup battery. 3 Disconnect the middle trackpad cable connector from the trackpad board. 4 Remove the ferrite bead from the trackpad cable. Insert a flat-blade screwdriver in the lateral grooves to loosen the trackpad button. Angle the button up and...

Hard Drive Cable

Before you continue, remove the following Microprocessor Daughterboard 1 Remove the hard drive cable from the logic board. Replacement Notes Install the cable as shown, noting the position of the cable strap the extra pins the cable does not use Before you continue, remove the following Microprocessor Daughterboard 1 Insert a flat-blade screwdriver under the tab on the door and gently pop off the door. Replacement Note Snap the door firmly into place. Failure to do so will cause the PCMCIA...

Pcmcia Eject Mechanism

Rom Eject Mechanism

Before you continue, remove the following Microprocessor Daughterboard Note The PCMCIA eject mechanism module includes the I R board the I R board is not available individually. Caution The mechanism, pins, and cables on the PCMCIA eject mechanism are fragile. Avoid touching them. Caution Remove the fence from the logic board before attempting to remove the PCMCIA eject mechanism. Failure to do so could damage the mechanism. 2 Using a logic board separator, carefully pry the mechanism up and...

GB Hard Drives Formatted Improperly

Issue PowerBook 1400 computers that shipped with one gigabyte 1 GB hard drives were formatted improperly. The improper formatting caused 1 GB hard drives to appear to have only 750 MB of total disk space. Solution This formatting issue has been noted and corrected at Apple's manufacturing site. This issue should no longer be a factor in any new PowerBook 1400 computers. Follow the steps below for identifying models of the PowerBook 1400 that shipped with 1 GB drives, determining whether these...

CDROM Drive Assembly

Floppy Drive Assembling

Reminder You should have already removed the CD-ROM drive from its compartment. See Modules You Must Remove. Remove the 4 screws from the plastic bottom cover. Turn the unit over and lift off the bottom cover. Slide the CD-ROM drive out of the metal top cover. 5 Use a paper clip to manually eject the tray. Remove the 2 screws and lift off the door. Insert the door tabs into the slots under the screw holes.

Logic Board

Before you continue, remove the following Microprocessor Daughterboard Note The logic board module includes the ADB EMI Note If a video card was installed, a video expansion bracket will be installed in the I O port instead of a video port plug. Refer to the Upgrades chapter on how to remove this bracket. 1 Open the I O door and locate the video port plug. Note Inside the video port plug is a small indent that assists in its removal. 2 Insert a flat-blade screwdriver under the right side of the...

Bezel

Button Open Powerbook 1400

1 Pry off the 2 appliques from the bezel. 2 Remove the 4 screws holding the bezel to the display housing. Overtightening these screws can cause the bezel to crack. To test for overtightening, open and close the display assembly if the assembly creaks, loosen the bezel screws. Interior Display Panel Display Panel Interior Display Panel Display Panel Note The bezel is secured to the display housing by numerous latches, which must be disengaged. 3 Insert a screwdriver into the side of the display...

Clutch Assembly

Powerbook Display Assembly

Before you continue, remove the following Note Each clutch assembly consists of a clutch and clutch bracket. The left and right assemblies are not interchangeable. 1 Remove the 5 screws holding each clutch assembly in place. Set the clutch on the display housing, placing the flat edge as shown. Secure the clutch bracket by installing the innermost screw first. Align the screw holes and install the remaining screws. Align the display with the clutches first, then tighten the screws.

Troubleshooting Flowchart Startup Problems

Boot with Disk Tools Update Driver. Replace the hard drive. Replace the logic board. Boot with extensions off. Boot with Disk Tools Update Driver. Replace the hard drive. Replace the logic board. 3. If hard drive appears, reinstall system software. 4. If hard drive doesn't appear, see if Hard Drive Format can reformat it. 5. Replace the hard drive cable. 1. Replace the floppy drive cable. 2. Check the trackpad and keyboard cables. 3. Replace the trackpad and keyboard...

Backup Battery

Before you continue, remove the following Note For this procedure it is not necessary to remove the trackpad just disconnect the trackpad cable from the backup battery. 1 Remove the 2 screws from the backup battery cover. Note The channel for the backup battery cable is obstructed by a screw boss. 2 Lift up the backup battery and carefully guide the cable out of its channel under the EMI shield. 3 Remove the backup battery from the top case. 4 Pry the cover off the backup battery. Install the...

Keyboard Heatsink

Power Button Powerbook 1400

Before you continue, remove the following Speaker Grill Grasp the metal frame of the keyboard and pull the keyboard up. Without putting stress on the keyboard cable, gently turn the keyboard onto the top case. 3 Remove 6 screws from the heatsink and lift it off. Replacement Note Slide the heatsink's 2 depressed tabs under the top case and lower the heatsink into place. 4 Disconnect the keyboard cable from the logic board. Replacement Note Connect the keyboard cable before installing the...

Inverter Board

Display Backlight For Powerbook

Before you continue, remove the following Note For this procedure it is not necessary to disconnect the display cable from the removed display. Disconnect the cable from the sleep reed switch board. Note The inverter board sits on 3 posts. It is secured by 2 large tabs and numerous small tabs 2 Insert a flat-blade screwdriver into the openings along the outer edge of the inverter board and dislodge the board. Caution If the double-sided conductive tape is no longer sticky, you must replace the...