Apple PowerBook 140 Service Source

Text of Apple PowerBook 140 User Guide:

• Apple PowerBook 140, Take Apart Actuators - 34 Actuators Before you begin, remove the following: • Main battery • I/O door • Top case • Inverter board Caution: The PowerBook140/145/170 contains CMOS devices that are very susceptible to ESD damage. To prevent damage, wear a grounding wriststrap. Review the ESD precautions in Bulletins/ Safety. Actuators

• Apple PowerBook 140, Troubleshooting Symptom Charts/Peripherals (Continued) - 21 Peripherals (Continued) No response to any key on keyboard 1 Reset power manager. 2 Check connections of keyboard to interconnect board, and interconnect board to daughterboard. 3 Replace keyboard. 4 Replace interconnect board. 5 Replace daughterboard. Known-good ImageWriter, ImageWriter II, or LQ does not print 1 Verify that System is 7.0.1 or later. 2 Verify that Chooser and Control Panel settings are correct. 3 Check cables. 4 Replace printer interface cable. 5 Try known-good printer. 6 Replace daughterboard. 7 Replace motherboard.

• Take Apart Elevation Feet - 37 1 Using a T-8 torx driver, remove the torx screw and washer and the spring clip from the inside of the elevation foot. 2 Pull off the elevation foot. Elevation Foot Spring Clip

• Apple PowerBook 140, Take Apart Hard Drive - 12 2 Using a T-8 torx driver, remove the five screws from the drive retainer. 3 Using a jeweler’s screwdriver, release the drive retainer latch and remove the retainer.

• Apple PowerBook 140, Take Apart Inverter Board - 26 Important: One active- matrix and three FSTN displays are used with the PowerBook 140/145/170 computers. Each display requires a matching inverter. When replacing a display or inverter board, refer to the “Display Compatibility Matrix” in Basics and to Service Source parts database for the correct part number for each board.

• Apple PowerBook 140, Basics Displays - 9 FSTN Display, Rev. C Rev. A, B, and C FSTN displays are available for the PowerBook 140/145/ 145B. The Rev. C display has a plastic rear cover, and the display cable connector is located along the outside edge of the printed circuit board.

• Apple PowerBook 140, Upgrades RAM Expansion Cards - 6 Caution: Handle the RAM expansion card by the edges only. Do not touch any components on the card. Caution: An incorrectly installed RAM card could damage the daughterboard. Note that the J1 connector and the RAM card are keyed for proper installation. Do not force the card into the connector, thereby defeating the key. RAM Expansion Card J1 Connector

• Apple PowerBook 140, Upgrades 80 MB HDA Upgrade - 12 Note: Apple offers the 80 MB Upgrade Kit and the 4/ 80 MB Upgrade Kit for the PowerBook 140/145/170. Both kits include the 80 MB hard drive and a 17 mm retainer. Refer to the following pages to determine whether you use the 17 mm retainer shipped with the upgrade kit or the customer’s original retainer. (To install the 4 MB PSRAM Expansion Card included with the 4/80 MB Upgrade Kit, refer to “RAM Expansion Cards.”)

• Take Apart Elevation Feet - 36 Elevation Feet Before you begin, remove the following: • Main battery • I/O door • Top case Caution: The PowerBook 140/145/170 contains CMOS devices that are very susceptible to ESD damage. To prevent damage, wear a grounding wriststrap. Review the ESD precautions in Bulletins/Safety. Elevation Foot Elevation

• Apple PowerBook 140, Take Apart Daughterboard - 39 Caution: The PowerBook 140/145/170 contains CMOS devices that are very susceptible to ESD damage. To prevent damage, wear a grounding wriststrap. Review the ESD precautions in Bulletins/Safety. 1 Using a T-8 torx driver, remove the four daughterboard mounting screws. Caution: Always use the logic board take-apart tool to separate the daughterboard connector from the motherboard Daughterboard Motherboard Logic Board Take-Apart Tool

• Apple PowerBook 140, Troubleshooting Symptom Charts/Miscellaneous (Continued) - 29 Miscellaneous (Continued) No sound from speaker 1 Verify that volume setting in Control Panel is 1 or above. 2 Check connections of speaker to interconnect board, interconnect board to daughterboard, and daughterboard to motherboard. 3 Replace interconnect board. 4 Replace daughterboard. 5 Replace motherboard.

• Apple PowerBook 140, Basics Displays - 5 FSTN Display, Rev. A Rev. A, B, and C FSTN displays are available for the PowerBook 140/145/ 145B. The Rev. A display has a plastic rear cover, and the display cable connector is located along the outside edge of the printed circuit board.

• Apple PowerBook 140, Take Apart Main Battery - 2 ± Warning: The main battery is a NICAD battery that contains toxic materials. Send undamaged, dead batteries to Apple for recycling—do not discard dead batteries with other waste. If the battery is damaged, do not return it to Apple. Dispose of damaged batteries according to local ordinances. Review battery handling and disposal instructions in Bulletins/ Safety.

• Apple PowerBook 140, Troubleshooting Symptom Charts/Peripherals (Continued) - 23 Peripherals (Continued) I/O devices are unrecognized or garbage is transmitted or received 1 Verify that System is 7.0.1 or later. 2 Check cables. 3 Verify that SCSI device has standard Apple terminator. 4 Verify that SCSI select switch setting on external device is unique. 5 Attach device to known-good computer. 6 Replace daughterboard. 7 Replace motherboard.

• Apple PowerBook 140, Troubleshooting Symptom Charts/Peripherals (Continued) - 20 Peripherals (Continued) Cursor moves, but clicking trackball button has no effect 1 Check interconnect board, daughterboard, and motherboard connections. 2 Replace trackball. 3 Replace keyboard. 4 Replace interconnect board. 5 Replace daughterboard. 6 Replace motherboard. Cursor does not move when using mouse 1 Check mouse connection to ADB port. 2 Press reset switch. 3 Clean mouse ball and inside mouse. 4 Replace mouse. 5 Replace motherboard.

• Additional Procedures Rev. A Display Bulb - 22 Rev. A Display Bulb Before you begin, remove the following: • Main battery • Display ± Warning: CCFL bulbs are thin and break easily. Handle them with care, especially at the delicate solder joints at the ends of the bulbs. Caution: To prevent ESD damage to components, wear a grounding wrists

• Apple PowerBook 140, Specifications I/O Interfaces - 6 I/O Interfaces SCSI HDI-30 SCSI port with 1.5 MB/sec. transfer rate Supports up to five external SCSI devices Does not provide termination power Apple Desktop Bus Apple Desktop Bus (ADB) port (maximum of three ADB devices is recommended) 200 mA maximum current draw for all ADB devices Serial Two RS-422 serial ports; mini DIN-8 connectors Sound Monaural sound-in port Stereo sound-out headphone jack that plays CD audio tracks in stereo and computer-generated sounds in mono

• Take Apart Floppy Drive - 17 2 Using a T-8 torx driver, remove the five torx screws from the drive retainer. 3 Using a jeweler’s screwdriver, release the drive retainer latch and remove the retainer.

• Apple PowerBook 140, Additional Procedures Battery Verification - 11 dead batteries with other waste. If the battery is damaged, do not return it to Apple. Dispose of damaged batteries according to local ordinances. Review battery handling and disposal instructions in Bulletins/Safety.

• Take Apart Display - 50 Display Before you begin, remove the main battery. Caution: The PowerBook 140/145/170 contains CMOS devices that are very susceptible to ESD damage. To prevent damage, wear a grounding wriststrap. Review the ESD precautions in Bulletins/Safety. Display

More Instructions:

	Apple PowerBook 140 Service source 27-01-2024 166	DOWNLOAD
	Apple PowerBook 140 Getting started manual 26-04-2023 28	DOWNLOAD

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