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K
Service Source
PowerBook 100
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K Service Source Specifications PowerBook 100
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Specifications Processor - 1 Processor CPU Motorola 68HC000, 16-bit CMOS microprocessor 15.6672 MHz Addressing 32-bit internal registers 24-bit address bus 16-bit data bus
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Specifications Memory - 2 Memory RAM 2 MB of 100 ns pseudostatic RAM (PSRAM) standard, expandable to 8 MB ROM 256K (two 128K by 8-bit devices); 150 ns access time; addressing supports up to 4 MB PRAM 128 bytes of parameter memory VRAM 32K of pseudostatic video display memory Clock/Calendar CMOS custom chip with long-life lithium battery
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Specifications Disk Storage - 3 Disk Storage Floppy Drive External Macintosh HDI-20 1.4 MB drive (Optional) 4.5 W startup power; 1.25 W random operation; 50 mW idle 20 MB Hard Drive 20 MB formatted capacity Apple SCSI interface; 2.5 in. mechanism 23 msec average access time (maximum) 5.0 W startup power; 2.7 W random operation 40 MB Hard Drive 40 MB formatted capacity Apple SCSI interface; 2.5 in. mechanism <19 msec average access time (maximum) 5.0 W startup power; 2.25–2.5 W random o
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Specifications I/O Interfaces - 4 I/O 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 Supports five devices maximum 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 minimum Asynchronous, synchronous, and AppleTalk protocols supported Internal connector supports Macintosh PowerBook Fax/Data modem
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Specifications I/O Interfaces - 5 Sound One sound output port for external audio amplifier
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Specifications I/O Devices - 6 I/O Devices Keyboard Built-in keyboard; ADB interface Dimensions: 10.6 in. length, 3.5 in. width, .5 in. depth Pitch: .73 in. horizontal; .71 in. vertical Trackball Dual-button trackball; 25 mm diameter; ADB interface Mouse (Optional) Low-power mouse; ADB interface Floppy Drive External Macintosh HDI-20 1.4 MB floppy drive (Optional)
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Specifications Sound and Video - 7 Sound and Video Sound Apple Sound Chip; one- or four-voice mono (one or two voices in stereo) with 4-bit digital-to-analog conversion using 22-kHz sampling rate Video Display 9 in. (229 mm) diagonal screen Film-compensated Super Twist Nematic (FSTN), backlit flat- panel display 640 by 400 pixels; 75 dpi
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Specifications Electrical - 8 Electrical Main Battery Sealed lead-acid battery (7 V) 2.5 hrs. maximum capacity Backup Batteries Three 3.5 V lithium cells Industry-standard CR-2430 batteries 110–220 V Frequency 50–60 Hz ADB Power Maximum current draw for all ADB devices is 50 mA (maximum Requirements of three ADB devices recommended)
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Specifications Electrical - 9 Power Adapter Input voltage: 85–270 VAC (100/240 nominal); 48–62 Hz (50/ 60 nominal) Output voltage: 7.0–7.6 V (7.5 nominal); 5 mA–2 A (1.5 nominal) Sound One sound output port for external audio amplifier
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K Service Source Troubleshooting PowerBook 100
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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.) If you are not sure w
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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 the PowerBook 100, • Remove the AC adapter and the battery. • Let the unit sit without power hooked up for 3-5 minutes. • Simultaneously hold down the Control, Command, Option, and Power On keys for 5-10 seconds. • Reinstall the battery and,
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Troubleshooting Symptom Charts/Startup - 3 Symptom Charts Startup Error chord sounds 1 Connect AC adapter and restart computer in three or four during startup minutes. sequence 2 Replace memory expansion board (if installed). Refer to “Memory Expansion Card” in Upgrades. 3 Replace motherboard. 4 Replace daughterboard. Screen displays 1 Reseat RAM expansion card. checkerboard pattern; 2 Replace RAM expansion card. no startup chime 3 Replace daughterboard. 4 Reseat display cable.
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Troubleshooting Symptom Charts/Power - 4 Power Screen is blank; 1 Verify storage switch is in “on” position. computer does not 2 Reset computer. respond 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. 6 Reset the power manager. 7 Replace keyboard. 8 Replace daughterboard. 9 Replace motherboard.
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Troubleshooting Symptom Charts/Power (Continued) - 5 Power (Continued) After main battery is Replace backup batteries. changed, some Control Panel settings are different After all power Condition is normal. Removing all power affects some Control sources are removed, Panel settings (such as time) that are stored in parameter RAM. some Control Panel settings are different
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Troubleshooting Symptom Charts/Power (Continued) - 6 Power (Continued) AC adapter is plugged 1 Verify that AC adapter is connected properly. in and connected, but 2 Try different main battery. If battery charges, replace main battery DA does not battery. indicate charger is 3 Verify that adapter is good. connected 4 Replace AC adapter. 5 Replace motherboard. Low-power warning 1 Attach AC adapter. Battery needs recharging. appears soon after 2 Verify that peripherals display low-power ic
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Troubleshooting Symptom Charts/Video - 7 Video Screen suddenly goes Condition is normal; computer has gone into sleep to conserve blank battery power. Screen goes blank and Adjust sleep delays in Control Panel or connect AC adapter. computer shuts down every few minutes Pixel never comes on Replace display. Row of pixels never 1 Replace interconnect cable. comes on 2 Replace display. 3 Replace interconnect board. 4 Replace daughterboard. 5 Replace motherboard. 6 Return computer to Apple.
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Troubleshooting Symptom Charts/Video (Continued) - 8 Video (Continued) Pixel is always on Replace display. Partial or complete 1 Replace interconnect cable. row of pixels is 2 Replace display. always on 3 Replace interconnect board. 4 Replace daughterboard. 5 Replace motherboard. 6 Return computer to Apple.
