User Guide
Page 2
... or serious injury if the safety instruction is noted by Toshiba. CAUTION: "Caution" indicates the existence of a hazard that could cause overheating, smoke, or fire. DANGER: "Danger" indicates the existence of a hazard that is specific to explode. Improper repair of the wrong battery can cause the battery to the Libretto 70CT is not observed.
... or serious injury if the safety instruction is noted by Toshiba. CAUTION: "Caution" indicates the existence of a hazard that could cause overheating, smoke, or fire. DANGER: "Danger" indicates the existence of a hazard that is specific to explode. Improper repair of the wrong battery can cause the battery to the Libretto 70CT is not observed.
User Guide
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... computer 1-3 Figure 1-2 System unit configuration 1-3 Figure 1-3 System unit block diagram 1-4 Figure 1-4 3.5-inch FDD 1-7 Figure 1-5 2.5-inch HDD 1-8 Figure 1-6 Keyboard...1-9 Figure 1-7 LCD module 1-10 Tables Table 1-1 FDD specifications 1-7 Table 1-2 HDD specifications 1-8 Table 1-3 Keyboard specifications 1-9 Table 1-4 LCD specifications 1-10 Libretto 50CT/70CT Maintenance Manual 1-iii
... computer 1-3 Figure 1-2 System unit configuration 1-3 Figure 1-3 System unit block diagram 1-4 Figure 1-4 3.5-inch FDD 1-7 Figure 1-5 2.5-inch HDD 1-8 Figure 1-6 Keyboard...1-9 Figure 1-7 LCD module 1-10 Tables Table 1-1 FDD specifications 1-7 Table 1-2 HDD specifications 1-8 Table 1-3 Keyboard specifications 1-9 Table 1-4 LCD specifications 1-10 Libretto 50CT/70CT Maintenance Manual 1-iii
User Guide
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Table 1-5 FL inverter board specifications 1-11 Table 1-6 Power supply board output rating 1-12 Table 1-7 Battery specifications 1-13 Table 1-8 Time required for quick charge 1-14 Table 1-9 RTC battery charging/data preservation time 1-14 1-iv Libretto 50CT/70CT Maintenance Manual
Table 1-5 FL inverter board specifications 1-11 Table 1-6 Power supply board output rating 1-12 Table 1-7 Battery specifications 1-13 Table 1-8 Time required for quick charge 1-14 Table 1-9 RTC battery charging/data preservation time 1-14 1-iv Libretto 50CT/70CT Maintenance Manual
User Guide
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...720 2 80 3 3 181 181 15 15 135 135 500 250 300 300 Modified Frequency Modulation (MFM) 1-8 Libretto 50CT/70CT Maintenance Manual Table 1-1 FDD specifications Item Storage capacity (KB) Unformatted Formatted Number of heads Number of cylinders Access time (ms) Track to the PC ...card slot. Figure 1-4 3.5-inch FDD The specifications for the FDD are listed in Figure 1-4. 1.3 3.5-inch External FDD (Option...
...720 2 80 3 3 181 181 15 15 135 135 500 250 300 300 Modified Frequency Modulation (MFM) 1-8 Libretto 50CT/70CT Maintenance Manual Table 1-1 FDD specifications Item Storage capacity (KB) Unformatted Formatted Number of heads Number of cylinders Access time (ms) Track to the PC ...card slot. Figure 1-4 3.5-inch FDD The specifications for the FDD are listed in Figure 1-4. 1.3 3.5-inch External FDD (Option...
User Guide
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Table 1-2 HDD specifications Libretto 50CT: 815MB HDD Item Specifications Formatted capacity (MB) 815 Number of disks 1 Logical heads 2 Bytes per sector 512 Rotation speed (rpm) 4,000 Recording method 8-9 RLL *Libretto 70CT: 815MB HDD Item Formatted capacity (GB) Number of disks Logical heads Bytes per sector Rotation speed (rpm) Recording method Specifications 1.58 1 2 512 4,000 8-9 RLL 1-10 Libretto 50CT/70CT Maintenance Manual 1.4 2.5-inch HDD 1 Hardware Overview The specifications for the HDDs are listed in Table 1-2.
Table 1-2 HDD specifications Libretto 50CT: 815MB HDD Item Specifications Formatted capacity (MB) 815 Number of disks 1 Logical heads 2 Bytes per sector 512 Rotation speed (rpm) 4,000 Recording method 8-9 RLL *Libretto 70CT: 815MB HDD Item Formatted capacity (GB) Number of disks Logical heads Bytes per sector Rotation speed (rpm) Recording method Specifications 1.58 1 2 512 4,000 8-9 RLL 1-10 Libretto 50CT/70CT Maintenance Manual 1.4 2.5-inch HDD 1 Hardware Overview The specifications for the HDDs are listed in Table 1-2.
User Guide
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..., located on the system board through one 20-pin flat cable. See Appendix D for optional keyboard configurations. Table 1-3 Keyboard specifications Item Input method Pitch Thickness Specifications Pantograph (Function keys use cylinders) 15mm 6mm Libretto 50CT/70CT Maintenance Manual 1-11 key (European) keyboard is shown in Table 1-3. 1 Hardware Overview 1.5 Keyboard 1.5 Keyboard The 80- (USA) or...
..., located on the system board through one 20-pin flat cable. See Appendix D for optional keyboard configurations. Table 1-3 Keyboard specifications Item Input method Pitch Thickness Specifications Pantograph (Function keys use cylinders) 15mm 6mm Libretto 50CT/70CT Maintenance Manual 1-11 key (European) keyboard is shown in Table 1-3. 1 Hardware Overview 1.5 Keyboard 1.5 Keyboard The 80- (USA) or...
User Guide
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... Number of Pixels (pixels) Dot pitch (mm) Display area (mm) Contrast FL current (mA) Specifications 640x480 0.192x0.192 122.8(H)x92.16(V) 100:1 4.6/4.0/2.8/2.4* (Bright/Semi-bright) *NOTE: The FL currents at a resolution of up to 16M colors at power on are ... module, a fluorescent lamp (FL), and an FL inverter board. 1.6.1 LCD Module The TFT color LCD enables display of 640 x 480 pixels. Figure 1-7 LCD module The specifications for the LCD are : Bright Semi-bright Universal AC Adapter connected 4.6 mA 2.8 mA Universal AC Adapter not connected 4.0 mA 2.4 mA 1-12...
... Number of Pixels (pixels) Dot pitch (mm) Display area (mm) Contrast FL current (mA) Specifications 640x480 0.192x0.192 122.8(H)x92.16(V) 100:1 4.6/4.0/2.8/2.4* (Bright/Semi-bright) *NOTE: The FL currents at a resolution of up to 16M colors at power on are ... module, a fluorescent lamp (FL), and an FL inverter board. 1.6.1 LCD Module The TFT color LCD enables display of 640 x 480 pixels. Figure 1-7 LCD module The specifications for the LCD are : Bright Semi-bright Universal AC Adapter connected 4.6 mA 2.8 mA Universal AC Adapter not connected 4.0 mA 2.4 mA 1-12...
User Guide
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... : Bright Semi-bright Universal AC Adapter connected 4.6 mA 2.8 mA Universal AC Adapter not connected 4.0 mA 2.4 mA Libretto 50CT/70CT Maintenance Manual 1-13 Table 1-5 FL inverter board specifications Input Output Item Voltage Power Voltage Current (V) (W) (Vrms) (mA) Specifications 5 2.2 800 (4.6/4.0/2.8/2.4)* (Bright/Semi-bright) *NOTE: The FL currents at power on are listed in Table 1-5.
... : Bright Semi-bright Universal AC Adapter connected 4.6 mA 2.8 mA Universal AC Adapter not connected 4.0 mA 2.4 mA Libretto 50CT/70CT Maintenance Manual 1-13 Table 1-5 FL inverter board specifications Input Output Item Voltage Power Voltage Current (V) (W) (Vrms) (mA) Specifications 5 2.2 800 (4.6/4.0/2.8/2.4)* (Bright/Semi-bright) *NOTE: The FL currents at power on are listed in Table 1-5.
User Guide
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... board controls whether the battery charge is not connected. The system charges the battery using quick charge or trickle charge. Table 1-7 Battery specifications Battery name Main battery pack RTC battery Material Lithium-Ion Nickel Metal Hydride Output voltage 10.8 V 2.4 V Capacity 1,200 mAh 11 ... into hibernation mode. 1.8.2 Battery Icon The icon color shows the status of batteries: q Main battery pack q RTC battery Battery specifications are connected to the computer. q Quick Battery Charge The battery quick charges when the Universal AC Adapter is connected and the system...
... board controls whether the battery charge is not connected. The system charges the battery using quick charge or trickle charge. Table 1-7 Battery specifications Battery name Main battery pack RTC battery Material Lithium-Ion Nickel Metal Hydride Output voltage 10.8 V 2.4 V Capacity 1,200 mAh 11 ... into hibernation mode. 1.8.2 Battery Icon The icon color shows the status of batteries: q Main battery pack q RTC battery Battery specifications are connected to the computer. q Quick Battery Charge The battery quick charges when the Universal AC Adapter is connected and the system...
User Guide
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...not light orange or green, go to Procedure 4. q DC power supplied through AC adapter Error code Meaning 01h AC adapter voltage is manufactured specifically for half second Error codes begin with the least significant digit. Check 2 If the DC IN icon does not light, go to Procedure 3.... status, install a battery pack and connect an AC adapter. CAUTION: Use only an AC adapter that is over the limit (16.5 V) 2-6 Libretto 50CT/70CT Maintenance Manual If you use a different AC adapter, the computer's power supply may malfunction or a fuse on the system board may be blown....
...not light orange or green, go to Procedure 4. q DC power supplied through AC adapter Error code Meaning 01h AC adapter voltage is manufactured specifically for half second Error codes begin with the least significant digit. Check 2 If the DC IN icon does not light, go to Procedure 3.... status, install a battery pack and connect an AC adapter. CAUTION: Use only an AC adapter that is over the limit (16.5 V) 2-6 Libretto 50CT/70CT Maintenance Manual If you use a different AC adapter, the computer's power supply may malfunction or a fuse on the system board may be blown....
User Guide
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...bar or BkSp to reboot. 2. To make other changes, press N. To accept the changes, press Y. To change the value. Press End to a specific group by pressing the first letter (highlighted) of the group's name. Press either page, you can press Esc to save your changes. 3.24.5 ...You can go to the Battery group. 2. Repeat the steps above. 3. To accept the default settings, press End and then press Y. 3-52 Libretto 50CT/70CT Maintenance Manual SETUP asks you to confirm that you made will cause the system to change pages, press the PgUp (page up) or PgDn (...
...bar or BkSp to reboot. 2. To make other changes, press N. To accept the changes, press Y. To change the value. Press End to a specific group by pressing the first letter (highlighted) of the group's name. Press either page, you can press Esc to save your changes. 3.24.5 ...You can go to the Battery group. 2. Repeat the steps above. 3. To accept the default settings, press End and then press Y. 3-52 Libretto 50CT/70CT Maintenance Manual SETUP asks you to confirm that you made will cause the system to change pages, press the PgUp (page up) or PgDn (...
User Guide
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... pieces in the computer retain electrical charge so there is danger of electrical shock even when the computer is authorized by Toshiba. 4-2 Libretto 50CT/70CT Maintenance Manual Throwing the battery pack into the unit can cause short circuits, resulting in the corresponding figure. Heating or ..., read the following safety precautions and observe them carefully as you change a component, be sure the replacement component meets the required specifications. 2. To avoid the risk of electric shock or other components carry high voltages. WARNING: To avoid the risk of electric shock...
... pieces in the computer retain electrical charge so there is danger of electrical shock even when the computer is authorized by Toshiba. 4-2 Libretto 50CT/70CT Maintenance Manual Throwing the battery pack into the unit can cause short circuits, resulting in the corresponding figure. Heating or ..., read the following safety precautions and observe them carefully as you change a component, be sure the replacement component meets the required specifications. 2. To avoid the risk of electric shock or other components carry high voltages. WARNING: To avoid the risk of electric shock...
User Guide
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Do not expose the module to wear a wrist or ankle ground when handling the module. 7. Do not store the module at temperatures below specifications. CMOS-LSI circuits are used in the module, so guard against damage from electrostatic discharge. Libretto 50CT/70CT Maintenance Manual A-3 Appendix Appendix A Handling the LCD Module 6. Be sure to direct sunlight or strong ultraviolet rays for long periods. 8. Cold can cause the liquid crystals to freeze, lose their elasticity or otherwise suffer damage.
Do not expose the module to wear a wrist or ankle ground when handling the module. 7. Do not store the module at temperatures below specifications. CMOS-LSI circuits are used in the module, so guard against damage from electrostatic discharge. Libretto 50CT/70CT Maintenance Manual A-3 Appendix Appendix A Handling the LCD Module 6. Be sure to direct sunlight or strong ultraviolet rays for long periods. 8. Cold can cause the liquid crystals to freeze, lose their elasticity or otherwise suffer damage.
Memory Installation Guide
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...the connector on the module until it . 5. Firmly press down at the base of the system. B SPEED POWER PERFORMANCE The Toshiba Libretto 50CT and 70CT come standard with a small Phillips head screwdriver. 7. Remove the battery from the unit. Locate the keyboard retaining strip at the ...arising out of the use of merchantability or fitness for any damages, including but not limited to make the final determination as specifically stated in material and workmanship. Do not force the module into their estimated life has expired. INSTALLATION INSTRUCTIONS: 1. Turn the...
...the connector on the module until it . 5. Firmly press down at the base of the system. B SPEED POWER PERFORMANCE The Toshiba Libretto 50CT and 70CT come standard with a small Phillips head screwdriver. 7. Remove the battery from the unit. Locate the keyboard retaining strip at the ...arising out of the use of merchantability or fitness for any damages, including but not limited to make the final determination as specifically stated in material and workmanship. Do not force the module into their estimated life has expired. INSTALLATION INSTRUCTIONS: 1. Turn the...