K Service Source PowerBook 150
K Service Source Basics PowerBook 150
Basics General Information - 1 General Information The PowerBook 150, shown at left, is an all-in-one notebook computer that features a 68030 processor running at 33 MHz and a 9.5 inch diagonal backlit FSTN display. The PowerBook 150 includes a 120 MB internal hard drive and supports up to six external SCSI devices through a SCSI port. Figure: PowerBook 150 The PowerBook 150 internal hard drive is based on IDE (Intelligent Device Electronics) technology, commonly used in DOS-compatible systems.
Basics Rear Panel - 2 Rear Panel Power Adapter Modem SCSI (HDI-30) Printer/Modem Reset Button Power Button
K Service Source Specifications PowerBook 150
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: Ñ Launch it directly by double-clicking the Apple Spec Database runtime alias at the top level of the Main Service Source CD. Ñ Select "Apple Spec Database" from the Service Source dropdown main menu. Ñ 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 CPU Motorola 68030 microprocessor 33 MHz Addressing 32-bit internal registers 32-bit address bus 32-bit data bus
Specifications Memory - 3 Memory RAM 4 MB, expandable to 40 MB ROM 1 MB PRAM 256 bytes of parameter memory VRAM 256K of static video display memory Clock/Calendar CMOS custom chip
Specifications Disk Storage - 4 Disk Storage Floppy Drive 19 mm high, 1.4 MB Apple SuperDrive Hard Drive 2.5 in.
Specifications I/O Interfaces - 5 I/O Interfaces SCSI HDI-30 SCSI port with 1.5 MB/sec.
Specifications I/O Devices - 6 I/O Devices Keyboard Built-in standard Apple keyboard 63 keys domestic; 64 keys ISO 18 mm vertical pitch; 18.
Specifications Sound and Video - 7 Sound and Video Video Display 9.5 in.
Specifications Electrical - 8 Electrical Main Battery Nickel cadmium (NiCad) battery Provides 2Ð4 hours of usage before recharging Power Adapter 110Ð240 VAC line voltage 50Ð60 Hz US, Japanese, United Kingdom, Australian, and European versions
Specifications Physical - 9 Physical Dimensions Height: 2.3 in. (5.8 cm) Width: 11.3 in. (28.7 cm) Depth: 9.3 in. (23.6 cm) Weight 5.5 lb. (2.
Specifications Environmental - 10 Environmental Operating Temperature 50Ð95¡ F (10Ð35¡ C) Storage Temperature 14Ð140¡ F (-10 to 60¡ C) Relative Humidity 20Ð80% noncondensing Operating Altitude 0Ð10,000 ft. (0Ð3048 m) Shipping Altitude 0Ð15,000 ft.
K Service Source Troubleshooting PowerBook 150
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 Power Manager Reset/ - 2 Power Manager Reset Reset the power manager if • The battery and power adapter are proven good, but the computer will not power on. • The computer will not reset after a system crash. To reset the power manager in a PowerBook 150, • Remove the AC adapter and the battery. • Using a paper clip, hold down the reset button on the back of the computer for 5–10 seconds. • Reconnect the AC adapter and briefly push the reset button again.
Troubleshooting Symptom Charts/Startup - 3 Symptom Charts Startup RAM failure occurs (eight-tone error chord sequence sounds after startup chord) 1 2 Replace RAM expansion card. Replace logic board. Hardware failure occurs (four-tone error chord sequence sounds after startup chord) 1 Disconnect hard drive data cable and reboot system. If startup sequence is normal, replace hard drive. Disconnect floppy drive cable and reboot system. If startup sequence is normal, replace floppy drive.
Troubleshooting Symptom Charts/Startup (Continued) - 4 Startup (Continued) Screen displays checkerboard pattern; no startup chime 1 2 3 Reseat RAM expansion card. Replace RAM expansion card. Reseat display cable.
Troubleshooting Symptom Charts/Power - 5 Power Screen is blank; computer doesn’t respond 1 2 3 4 5 6 7 8 Press reset switch. Connect power adapter and reboot computer in 3–4 minutes. Try known–good, charged main battery. Check all interconnect board and logic board connections. Reset the power manager. Replace keyboard. Replace interconnect board. Replace logic board. After removing main battery, some Control Panel settings are different 1 2 Replace interconnect board. Replace logic board.
Troubleshooting Symptom Charts/Power (Continued) - 6 Power (Continued) Power adapter is plugged in, but battery DA does not indicate charger is connected 1 2 3 4 Check battery charger connection. Try known-good, charged main battery. Try known-good power adapter. Replace logic board. Low-power warning appears 1 2 3 Recharge battery or attach power adapter. Verify that peripherals are low-power. Reduce use of power-consuming devices or connect power adapter. Try known-good, charged main battery.
Troubleshooting Symptom Charts/Power (Continued) - 7 Power (Continued) Computer runs when plugged in to wall outlet but not on battery power; battery voltage is within tolerance 1 2 3 4 Reseat battery to make sure battery is mating with contacts on logic board. Replace fuse on logic board. Replace logic board. Return computer to Apple.
Troubleshooting Symptom Charts/Video - 8 Video Row or partial row of pixels never comes on or is always on 1 2 3 Thin white line is always on at middle of screen Thin white line is normal for FSTN screens. Replace display cable. Replace display. Replace interconnect board.
Troubleshooting Symptom Charts/Video (Continued) - 9 Video (Continued) Display is very light or totally white 1 2 3 4 5 6 7 8 Adjust screen contrast. Adjust screen brightness. Check display cable, inverter board, interconnect board, and logic board connections. Replace inverter board. Replace interconnect board. Replace display cable. Replace display. Replace logic board.
Troubleshooting Symptom Charts/Video (Continued) - 10 Video (Continued) No display, but computer appears to operate correctly 1 2 Rainbow colors visible from extreme viewing angles Such colors are normal for FSTN screens. 3 4 5 6 7 8 Adjust screen contrast. Check display cable, inverter board, interconnect board, and logic board connections. Replace inverter board. Replace interconnect board. Replace power cable. Replace display cable. Replace display. Replace logic board.
Troubleshooting Symptom Charts/Video (Continued) - 11 Video (Continued) Image is not uniform Irregularity in images is normal for FSTN screens. Adjust contrast and brightness to diminish effect. Display stopped working or dimmed but is fine now If temperature is under 5 or over 40 degrees centigrade, this reaction is normal for FSTN screens. Backlight doesn’t operate 1 2 3 4 5 6 7 Check cables. Check display cable, inverter board, interconnect board, and logic board connections.
Troubleshooting Symptom Charts/Video (Continued) - 12 Video (Continued) Screen goes blank 1 2 Press any key to wake computer from system sleep. Check display cable connection. Pixel is always white or always black Replace display.
Troubleshooting Symptom Charts/Floppy Drive - 13 Floppy Drive Audio and video present, but internal 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 logic board. Disk ejects while booting; display shows Mac icon with blinking X 1 2 3 4 5 6 Try known-good system disk. Verify that trackball or mouse button is not stuck. Check floppy drive cable connection. Replace floppy drive cable.
Troubleshooting Symptom Charts/Floppy Drive (Continued) - 14 Floppy Drive (Continued) Disk does not eject Disk initialization fails 1 2 3 4 5 6 Switch off system and hold mouse button down while you switch system on. Insert opened paper clip into hole beside drive. Check floppy drive cable connection. Replace floppy drive cable. Replace floppy drive. Replace logic board. 1 2 3 4 5 Try known-good floppy disk. Install inverter shield. Check floppy drive cable connection. Replace floppy drive cable.
Troubleshooting Symptom Charts/Floppy Drive (Continued) - 15 Floppy Drive (Continued) Read/write/copy error 1 2 3 4 5 Try known-good floppy disk. Install inverter shield. Check floppy drive cable connection. Replace floppy drive cable. Replace floppy drive.
Troubleshooting Symptom Charts/Hard Drive - 16 Hard Drive Internal hard drive does not operate 1 2 3 4 5 Make sure power adapter is connected. Check hard drive cable connection. Replace hard drive cable. Replace hard drive. Replace logic board.
Troubleshooting Symptom Charts/Peripherals - 17 Peripherals After connecting external SCSI device, computer doesn’t boot 1 2 3 5 6 7 Switch on external SCSI device before starting computer. Check cable connections. Verify that standard Apple terminator terminates end of 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. Replace logic board. 1 2 3 4 Press reset switch.
Troubleshooting Symptom Charts/Peripherals (Continued) - 18 Peripherals (Continued) Cursor intermittently does not move or moves erratically 1 2 3 4 5 Clean ball and rollers of trackball. Replace trackball. Replace keyboard. Replace interconnect board. Replace logic board. Cursor moves, but clicking trackball button has no effect 1 2 3 4 5 Check interconnect board and logic board connections. Replace trackball. Replace keyboard. Replace interconnect board. Replace logic board.
Troubleshooting Symptom Charts/Peripherals (Continued) - 19 Peripherals (Continued) No response to any key on keyboard 1 2 3 4 5 Reset power manager. Check connections of keyboard to interconnect board. Replace keyboard. Replace interconnect board. Replace logic board. Known-good ImageWriter, ImageWriter II, or LQ does not print 1 2 3 4 5 6 Verify that System is current. Verify that Chooser and Control Panel settings are correct. Check cables. Replace printer interface cable. Try known-good printer.
Troubleshooting Symptom Charts/Peripherals (Continued) - 20 Peripherals (Continued) Known-good LaserWriter does not print Device connected to external modem port doesn’t work 1 2 3 4 5 6 Verify that System is current. 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 Networking and Communications manual. Replace logic board.
Troubleshooting Symptom Charts/Peripherals (Continued) - 21 Peripherals (Continued) I/O devices are unrecognized or garbage is transmitted or received 1 2 3 4 5 6 Verify that System is current. Check cables. Verify that SCSI device has standard Apple terminator. Verify that SCSI select switch setting on external device is unique. Attach device to known-good computer. Replace logic board.
Troubleshooting Symptom Charts/Internal Modem - 22 Internal Modem Internal modem options do not appear in CDEV 1 2 3 4 Remove and reseat modem card. Verify that System is current. Replace modem card. Replace logic board. Modem does not respond properly to AT command set instructions 1 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. Remove and reseat modem card.
Troubleshooting Symptom Charts/Internal Modem (Continued) - 23 Internal Modem (Continued) Strange mix of characters appears on screen 1 2 3 4 5 6 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. Remove and reseat modem card. Verify that System is current. Replace modem card. Replace logic board. Modem interferes with system sound 1 2 3 4 Remove and reseat modem card.
Troubleshooting Symptom Charts/Internal Modem (Continued) - 24 Internal Modem (Continued) Modem does not respond to incoming call 1 2 3 4 If computer is in sleep mode, verify that Wake On Ring option in CDEV is selected. Check phone cord connection and operation. Replace modem card. Replace logic board. Modem has no sound output 1 2 3 4 Verify that Control Panel volume setting is above 0. Replace modem card. Replace interconnect board. Replace logic board.
Troubleshooting Symptom Charts/Miscellaneous - 25 Miscellaneous Screen goes blank and computer shuts down every few minutes Adjust sleep delays in Control Panel or connect power adapter. Application seems to run slower after few seconds Connect power adapter. Hard drive is slow to respond, or screen goes blank too often Adjust sleep delays in Control Panel or connect power adapter.
Troubleshooting Symptom Charts/Miscellaneous (Continued) - 26 Miscellaneous (Continued) No sound from speaker 1 2 3 4 Verify that volume setting in Control Panel is 1 or above. Check connection of interconnect board to logic board. Replace interconnect board. Replace logic board.
K Service Source Take Apart PowerBook 150
Take Apart Main Battery - 1 Main Battery Before you begin, disconnect the power adapter. Note: This procedure also covers removal of the main battery door. Important: Before removing the main battery, use the Macintosh Shut Down command. Otherwise, all RAM contents will be lost.
Take Apart Main Battery - 2 materials. Review battery handling and disposal instructions in Bulletins/ Safety. 1 2 Slide open the battery door. Using the battery door as a handle, pull out the main battery.
Take Apart Main Battery - 3 Note: Complete the next steps only if you are replacing the battery or battery door. 3 End Tab 4 Slide the battery door completely open. Pull the end tab until it releases, and remove the door from the battery.
Take Apart Top Case - 4 Top Case Before you begin, remove the main battery. Top Case Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Top Case - 5 1 Using a T-8 torx driver, remove the five torx screws from the bottom case.
Take Apart Top Case - 6 2 Interconnect Cable 3 Lift up the top case and disconnect the interconnect cable. Lift off the top case and unhook the two tab fasteners from the front of the bottom case. Replacement Caution: When connecting the interconnect cable, fold the cable as shown. If it is not folded correctly, the cable could short.
Take Apart Hard Drive - 7 Hard Drive Before you begin, remove the following: • Main battery • Top case Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Hard Drive - 8 Caution: The hard drive cable is fragile. Handle it with care. 1 Disconnect the hard drive cable from the logic board.
Take Apart Hard Drive - 9 2 3 4 Hard Drive Cable Carefully fold back the hard drive cable. Using a T-8 torx driver, remove the three hard drive mounting screws. Lift the hard drive out of the bottom case.
Take Apart Hard Drive - 10 Note: Complete the following steps if you are replacing the hard drive, hard drive cable, or hard drive bracket. 5 Using a small flat-blade screwdriver, carefully pry the hard drive cable from the hard drive.
Take Apart Hard Drive - 11 6 7 8 Turn over the hard drive. Using a #1 Phillips screwdriver, remove the four screws securing the hard drive bracket. Remove the bracket from the hard drive. Replacement Note: For information on returning drives, cables, and carriers to Apple, refer to the Hard Drives manual.
Take Apart Floppy Drive - 12 Floppy Drive Floppy Drive Before you begin, remove the following: • Main battery • Top case • Modem card (if present) Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Floppy Drive - 13 Caution: The hard drive cable is fragile and should be handled with care. 1 Floppy Drive 2 Hard Drive Cable Disconnect the hard drive cable from the logic board. Carefully fold back the cable from the floppy drive.
Take Apart Floppy Drive - 14 Caution: The floppy drive cable is fragile and should be handled with care. 3 Locking Tab Lift the locking tab on the floppy drive connector and disconnect the floppy drive cable from the logic board.
Take Apart Floppy Drive - 15 4 5 Using a T-8 torx driver, remove the four floppy drive mounting screws. Lift the floppy drive out of the bottom case.
Take Apart Floppy Drive - 16 Note: Complete the following steps if you are replacing the floppy drive, floppy drive cable, or floppy drive brackets. 6 Using a small flat-blade screwdriver, push out the locking tab and remove the floppy drive cable from the drive.
Take Apart Floppy Drive - 17 7 8 Using a #0 Phillips screwdriver, remove the four screws securing the left and right floppy drive brackets. Remove the brackets from the floppy drive.
Take Apart Trackball Assembly - 18 Trackball Assembly Trackball Assembly Before you begin, remove the following: • Main battery • Top case Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Trackball Cable Trackball Assembly - 19 Locking Tab Caution: The trackball cable is fragile and should be handled with care. 1 Pull out the locking tab on the trackball connector and disconnect the trackball cable.
Take Apart Trackball Assembly - 20 2 Using a T-8 torx driver, remove the two mounting screws and lift the trackball assembly out of the top case.
Take Apart Keyboard - 21 Keyboard Keyboard Before you begin, remove the following: • Main battery • Top case • Trackball assembly Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Keyboard - 22 Caution: The keyboard ribbon cables are fragile and should be handled with care. 1 Keyboard Cables Lift up the locking tabs on the two keyboard connectors and disconnect the keyboard cables.
Take Apart Keyboard - 23 2 Using a T-8 torx driver, remove the seven mounting screws and lift the keyboard out of the top case.
Take Apart Inverter Board - 24 Inverter Board Before you begin, remove the following: • Main battery • Top case Inverter Board Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Inverter Board - 25 1 Inverter Shield Inverter Board Inverter Cable 2 3 Remove the two mounting screws that secure the inverter board to the bottom case. Note: Do not remove the inverter shield from the inverter board. Pull the inverter board and attached shield straight up and off the connector on the interconnect board. Disconnect the inverter cable.
Take Apart Brightness Pot Inverter Board - 26 Contrast Pot Inverter Board Actuator Actuator the Service Price Pages. If you are replacing a defective inverter that has an inverter shield installed, order both the inverter board and the inverter shield. Do not reuse the original inverter shield. Replacement Note: Be sure to align the brightness and contrast pots on the inverter board with the plastic actuators on the top case.
Take Apart Interconnect Board - 27 Interconnect Board Before you begin, remove the following: • Main battery • Top case • Inverter board Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Interconnect Board - 28 The interconnect board contains hazardous materials. Return bad interconnect boards to Apple for proper disposal. ±Warning: 1 Caution: The keyboard and display ribbon cables are fragile. Handle these cables with care. Lift up the locking tabs on the two keyboard connectors and disconnect the keyboard cables.
Take Apart Interconnect Board - 29 2 Note: The display cable will not come entirely out of the connector until you remove the interconnect board from the top case. Pull out the locking tab on connector J2 and ease the display cable out of the connector as far as the cable will go. J2 Connector Replacement Note: Connect the display cable before replacing the interconnect board.
Take Apart Interconnect Board - 30 3 Using a T-8 torx driver, remove the two mounting screws and lift the interconnect board from the top case.
Take Apart Actuators - 31 Actuators Before you begin, remove the following: • Main battery • Top case • Inverter board Actuators Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Actuators - 32 1 2 Pull up the contrast actuator, rotate it toward the display, and remove the actuator from the top case. Repeat for the brightness actuator.
Take Apart Elevation Feet - 33 Elevation Feet Before you begin, remove the following: • Main battery • Top case Elevation Foot Elevation Foot Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Elevation Feet - 34 1 2 Spring Clip Elevation Foot Using a T-8 torx driver, remove the torx screw and washer and the spring clip from the inside of the elevation foot. Pull off the elevation foot.
Take Apart Fuse - 35 Fuse Before you begin, remove the following: • Main battery • Top case Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Fuse - 36 1 Using a small flat-blade screwdriver, pry up and remove the fuse.
Take Apart Logic Board - 37 Logic Board Before you begin, remove the following: • Main battery • Top case • RAM expansion card (if present) • Modem board (if present) Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Logic Board - 38 Caution: The hard drive and floppy drive cables are fragile. Handle them with care. Hard Drive Cable 1 2 Floppy Drive Cable Disconnect the hard drive cable from the logic board. Lift up the locking tabs and disconnect the floppy drive cable from the logic board.
Take Apart Torx Screw Tall Hex Nut Logic Board - 39 Hex Nut Screw Logic Board 3 4 Remove the three hex nut screws and three torx screws that secure the logic board to the bottom case. Lift the logic board out of the bottom case. Replacement Note: Replace the tall hex nut screw in the corner of the logic board nearest the RAM card connector.
Take Apart Display Bezel - 40 Display Bezel Display Bezel Before you begin, remove the main battery. Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Display Bezel - 41 1 Screw Plastic Plugs Plastic Plug 2 Remove the two plastic plugs. Using a T-8 torx driver, remove the two bezel mounting screws from the display.
Take Apart Display Bezel - 42 3 Display Bezel 4 Pull the display bezel down and away from the display and release the bezel from the mounting tabs at the top and sides of the display. Lift the bezel off the display.
Take Apart Clutches/Display Housing - 43 Clutches/Display Housing Before you begin, remove the following: • Main battery • Display bezel Clutch Assembly Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Clutches/Display Housing - 44 1 Display Housing EMI Shield 2 Display 3 4 Cover the keyboard with a clean cloth or sheet of paper. Using a T-8 torx driver, remove the four display mounting screws. Remove the display from the housing and EMI shield. Place the display facedown on the keyboard.
Take Apart Clutches/Display Housing - 45 Inverter Cable 5 6 Clutch Covers Right Clutch 7 Pull off the three clutch covers. Using a T-8 torx driver, remove the three mounting screws from the left and right clutches. Remove the left and right clutches from the display housing. Replacement Note: Replace the short mounting screws in the top-inside clutch threadings. The top-outside threadings are used to mount the bezel.
Take Apart Clutches/Display Housing - 46 Display Housing EMI Shield Replacement Note: To avoid pinching the inverter cable, make sure it routes as illustrated. 8 Remove the display housing and EMI shield from the case.
Take Apart Display - 47 Display Display Before you begin, remove the following: • Main battery • Display bezel Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Display - 48 Caution: The display cable is fragile and should be handled with care. Display Housing EMI Shield 1 Display 2 3 4 Cover the keyboard with a clean cloth or sheet of paper. Using a T-8 torx driver, remove the four display mounting screws. Remove the display from the housing and EMI shield. Place the display facedown on the keyboard.
Take Apart Display - 49 5 Locking Tab Using a small flat-blade screwdriver, pry up and disconnect the display cable.
Take Apart Display - 50 6 Inverter Cable 7 Disconnect the inverter cable from the display backlight cable. Remove the display. Replacement Note: To avoid pinching the inverter cable, make sure it routes as illustrated.
Take Apart Display Cable Display Cable - 51 Display Cable Before you begin, remove the following: • Main battery • Top case • Inverter board • Interconnect board • Display bezel • Display Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Display Cable - 52 Caution: The display cable is fragile and should be handled with care. 1 Ferrite Bead Pry the display cable ferrite bead from the case.
Take Apart Display Cable - 53 2 Left Clutch Cover 3 Center Clutch Cover Left Clutch 4 Pull off the center and left clutch covers. Using a T-8 torx driver, remove the three mounting screws from the left clutch. Remove the clutch from the display housing. Replacement Note: Replace the short mounting screw in the top-inside clutch threading. The top-outside threading is used to mount the bezel. Display Cable 5 Remove the display cable from the case.
Take Apart Inverter Cable - 54 Display Housing Inverter Cable Inverter Cable Before you begin, remove the following: • Main battery • Top case • Inverter board • Display bezel Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Take Apart Center Clutch Cover Right Clutch Cover Inverter Cable - 55 Inverter Cable 1 2 3 Right Clutch Pull off the center and right clutch covers. Using a T-8 torx driver, remove the three mounting screws from the right clutch. Remove the clutch from the display housing. Replacement Note: Replace the short mounting screw in the top-inside clutch threading. The top-outside threading is used to mount the bezel.
Take Apart Inverter Cable - 56 Backlight Cable Inverter Cable Replacement Note: To avoid pinching the inverter cable, make sure it routes as illustrated. 4 5 Fold back the right edge of the display EMI shield and disconnect the inverter cable from the backlight cable. Remove the inverter cable from the case.
K Service Source Upgrades PowerBook 150
Upgrades Modem Card - 1 Modem Card Before you begin, remove the following: • Main battery • Top case Modem Card Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Upgrades Modem Port Cover Modem Card - 2 Note: The modem card is an option for the PowerBook 150. 1 Release Tabs Pinch the release tabs and push out the modem port cover.
Upgrades Modem Card - 3 2 Modem Modem Card Connector J4 Connector 3 Connect the modem card connector to connector J4 on the logic board. Install the two mounting screws.
Upgrades RAM Expansion Card - 4 RAM Expansion Card Before you begin, remove the following: • Main battery • Top case Caution: The PowerBook 150 contains CMOS devices that are very susceptible to ESD damage. Review the ESD precautions in Bulletins/ Safety.
Upgrades RAM Expansion Card - 5 Caution: Handle the RAM expansion card by the edges only. Do not touch any components on the card. Expansion Card Brace RAM Expansion Card Adapter This procedure explains how to install the RAM expansion card kit. The kit is an option for the PowerBook 150 and includes a RAM expansion card, adapter, brace, and mounting screw. 1 Caution: Be careful not to flex the RAM card when inserting it into the adapter.
Upgrades RAM Expansion Card - 6 holding onto the white projections on the top of both cards and squeezing them together. Expansion Card Brace 2 RAM Expansion Card Adapter Connect the RAM expansion card to the adapter. Note: Make sure the ridge on the underside of the brace fits between the rows of chips on the RAM card. Position the expansion card brace over the RAM card and snap it into place.
Upgrades RAM Expansion Card - 7 3 4 J7 Connector Brace Slot 5 Insert the two legs of the expansion card brace into the two brace slots in the logic board. Caution: Be careful not to flex the RAM card or adapter when connecting the adapter to the logic board. Connect the adapter (with RAM card and brace attached) to connector J7 on the logic board. Install the mounting screw.
Upgrades Adapter Logic Board Take-Apart Tool RAM Expansion Card - 8 Note: To disconnect the adapter from the logic board, be sure to use the Apple logic board take-apart tool. Note: To verify that the upgrade is successful, check the Total Memory message (for systems with virtual memory switched off) or the Built-in Memory message (for systems with virtual memory switched on). The memory size should be 4 MB of soldered RAM plus the RAM on the expansion board.
Upgrades RAM Expansion Card - 9 incorrect, replace the RAM expansion card. If the memory size is still incorrect, send the computer to Apple.
K Service Source Additional Procedures PowerBook 150
Additional Procedures Battery Recharger - 1 Battery Recharger No preliminary steps are required before you begin this procedure. Battery 1 LED Battery Recharger Using the PowerBook power adapter, plug the battery recharger into a power outlet and insert the main battery into the recharger.
Additional Procedures Battery Recharger - 2 2 Track the status of the battery. If the LED is • Yellow, the battery is charging. • Green, the battery is ready to use. • Off, the charger is unplugged, the battery is bad, the power adapter is defective, or the charger is defective.
Additional Procedures Battery Handling - 3 Battery Handling Main Battery No preliminary steps are required before you begin this procedure. Note: The PowerBook150 main battery is a nickel cadmium (NiCad) battery with a voltage of 5.65-7.5 volts. Its longevity is estimated at 500 power cycles. To extend its longevity, follow the battery handling guidelines on the next page.
Additional Procedures Battery Handling - 4 battery contains toxic materials. Review battery handling and disposal instructions in Bulletins/ Safety. The following are guidelines for properly handling the NiCad battery: • Handle the battery carefully. Do not drop, puncture, disassemble, mutilate, or incinerate the battery.
Additional Procedures Battery Handling - 5 • • • • • ships batteries in a partially-charged state. Do not leave the battery in the computer for longer than two weeks without plugging in the power adaptor. Completely discharge and recharge the battery once a month. Store the battery in the protective battery case. Do not short-circuit the battery terminals. Keep the battery in a cool, dark place.
Additional Procedures Battery Verification - 6 Battery Verification Main Battery Before you begin, remove the main battery. Note: The Control Strip on the PowerBook 150 desktop is a general indicator of the battery charge. Use a voltmeter to determine the actual charge. Refer to the procedure on the next page. The main battery is a NiCad battery that contains toxic materials.
Additional Procedures Battery Verification - 7 handling and disposal instructions in Bulletins/ Safety. Positive Probe Negative Probe Set a voltmeter to the 10 volts DC scale and touch the positive and negative terminals of the battery with the positive and negative voltmeter probes. If the reading is not above 5.7 volts, recharge (first) or replace the battery.
Additional Procedures Adapter Verification - 8 Adapter Verification Negative Probe No preliminary steps are required before you begin this procedure. 1 2 Adapter Plug 3 Positive Probe Plug in the AC adapter to a wall socket. Set a voltmeter to the 10 volts DC scale.
Additional Procedures Adapter Verification - 9 the adapter plug. If the reading is not 7.5–7.9 volts, replace the adapter.
K Service Source Exploded View PowerBook 150
Exploded View 1 Exploded View PowerBook 150 922-0986 Display Housing 661-0143 FSTN Display 922-0988 Display Bezel 922-0987 EMI Shield 875-0112 Rubber Plug 922-0984 Inverter Cable 922-0983 Display Cables 815-1248 Brightness Actuator 076-0468 Elevation Foot Kit 815-1231 End Clutch Cover 076-0567 External Battery Recharger 661-1515 Trackball Assembly 699-0497 Clutch Assembly 815-1230 Center Clutch Cover 661-0190 Interconnect Board 922-0992 Floppy Drive Bracket 922-1120 Inverter Board 805-0397 Inver
