Backup Batteries

No preliminary steps are required before you begin this procedure. Warning If handled or discarded improperly, the lithium backup batteries in the PowerBook 100 could explode. Review battery handling and disposal instructions in Bulletins Safety. If you are changing the backup batteries without performing other Take Apart procedures, make sure the main battery or the AC adapter is providing power to the computer. You can then remove the batteries without losing the contents of parameter RAM. 1...

Fax Data Modem

Before you begin, remove the following Warning If handled or discarded improperly, the lithium backup batteries in the PowerBook 100 could explode. Review battery handling and disposal instructions in Bulletins Safety. Caution Review the ESD precautions in Bulletins Safety. 1 Push the metal prongs toward the back of the computer and lift the modem shield up and out of the bottom cover. 2 Lift the modem connector cover out of the bottom cover. 3 Position the modem so that connector J1 on the...

Symptom Charts Startup

1 Connect AC adapter and restart computer in three or four minutes. 2 Replace memory expansion board (if installed). Refer to Memory Expansion Card in Upgrades. Error chord sounds during startup sequence checkerboard pattern 2 no startup chime 3 Reseat RAM expansion card. Replace RAM expansion card. Replace daughterboard. Reseat display cable.

Elevation Foot

Before you begin, remove the following Awarning If handled or discarded improperly, the lithium backup batteries in the PowerBook 100 could explode. Review battery handling and disposal instructions in Bulletins Safety. Caution Review the ESD precautions in Bulletins Safety. 1 Using needlenose pliers, squeeze the locking tabs on the right elevation foot and pull the foot assembly from the case. 2 Repeat the procedure for the left elevation foot.

Hard Drive

Before you begin, remove the following Awarning If handled or discarded improperly, the lithium backup batteries in the PowerBook 100 could explode. Review battery handling and disposal instructions in Bulletins Safety. Caution Review the ESD precautions in Bulletins Safety. 1 Fold back the hard drive shield and pull up the tabs to unlock the hard drive flex cable connector. 2 Disconnect the hard drive flex cable from the motherboard. 3 Using a flat-blade screwdriver, unlock one of the two...

Battery Recharger

No preliminary steps are required before you begin this procedure. 1 Using the PowerBook power adapter, plug the battery recharger into a power outlet and insert the main battery into the recharger. 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

SCSI Termination

No preliminary steps are required before you begin this procedure. Note Because the PowerBook 100 does not provide SCSI termination at the logic board, remember to terminate at the beginning and end of the SCSI chain. Use the standard Apple terminator (not the Macintosh IIfx terminator). When terminating a SCSI chain, follow these guidelines Add one terminator to a single external SCSI device, or Add one terminator to the first device and another to the last when there are multiple devices.

Power

Screen is blank computer does not respond 1 Verify storage switch is in on position. 3 Connect AC adapter and restart computer in three or four minutes. 4 Install known-good, charged main battery. If computer works, replace main battery. 5 Verify that keyboard cable is securely connected.

Battery Handling

No preliminary steps are required before you begin this procedure. Awarning The main battery contains toxic materials. If you touch a damaged battery, immediately wash your hands and affected skin with water for at least five minutes. 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. Review battery handling and disposal instructions in Bulletins Safety. Follow these guidelines for properly...

IO Interfaces

Floppy Drive One HDI-20 floppy drive port for external 1.4 MB drive SCSI One HDI-30 SCSI port 1.5 MB sec. transfer rate Apple Desktop Bus One Apple Desktop Bus (ADB) port low-speed serial interface Serial Two RS-422 ports, one external and one internal 230.4 Kbaud Asynchronous, synchronous, and AppleTalk protocols supported Internal connector supports Macintosh PowerBook Fax Data modem Sound One sound output port for external audio amplifier

Keyboard

Before you begin, remove the following Awarning If handled or discarded improperly, the lithium backup batteries in the PowerBook 100 could explode. Review battery handling and disposal instructions in Bulletins Safety. Caution Review the ESD precautions in Bulletins Safety. 1 Caution Be careful not to stress the keyboard cables or the connectors on the motherboard. 2 Lift the back side of the keyboard as high as the keyboard cables will allow. 3 Slide the keyboard toward the rear of the...

Apple Powerbook G4 Review

Before you begin, remove the following Awarning If handled or discarded improperly, the lithium backup batteries in the PowerBook 100 could explode. Review battery handling and disposal instructions in Bulletins Safety. Caution Review the ESD precautions in Bulletins Safety. Note Some PowerBook 1 00 motherboards contain fuses that are not removable. To replace a fuse that is soldered to the board, you must replace the motherboard. All new motherboards ordered from Apple contain removable fuses....

Video Continued

Display is very light or totally white 1 Adjust screen contrast and brightness settings. 2 Verify interconnect-cable-to-motherboard connection. No display but computer appears to operate correctly 1 Adjust screen contrast and brightness settings. 2 Verify interconnect-cable-to-motherboard connection. Condition is normal for PowerBook 100 screen. Display shows rainbow colors when viewed from extreme side angles