Toshiba C50 User Manual

							Refer to the enclosed Instruction Manual for Safety and Comfort  for
detailed precautions and handling instructions.Charge the battery pack only in an ambient temperature from 5 through 35
degrees Celsius. Otherwise, the electrolyte solution might leak, battery
pack performance might deteriorate, and the battery life might be
shortened.
Charging the batteries
When the power in the battery pack becomes low, the  DC IN/Battery
indicator flashes amber to indicate that only a few minutes of battery power
remain. If you continue to use the computer while the  DC IN/Battery
indicator flashes, the computer enters Hibernation Mode so that you do not lose any data, and automatically turn itself off.
You must recharge a battery pack when it becomes discharged.
Procedures
To recharge a battery pack, connect the AC adaptor to the DC IN 19V jack
and plug the other end into a working outlet. The  DC IN/Battery indicator
glows amber while the battery is being charged.
Charging Time
The following table shows the approximate time required to charge an
exhausted battery fully.
Battery typePower offPower onBattery pack (32Wh, 4
cell)about 3 hoursabout 3 hoursBattery pack (45Wh, 4
cell)about 3 hoursabout 3 hoursBe aware that the charging time when the computer is on is affected by ambient temperature, the temperature of the computer and how you areusing the computer. If you make heavy use of external devices for
example, the battery might scarcely charge at all during operation.
Battery charging notice
The battery might not begin charging immediately under the following conditions:
The battery is extremely hot or cold (if the battery is extremely hot, it
might not charge at all). To ensure the battery charges to its full
capacity, charge it at room temperature of between 5°C to 35°C (41–
95°F).
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							The battery is nearly completely discharged. In this instance, leave the
AC adaptor connected for a few minutes and the battery should begin
charging.
The  DC IN/Battery  indicator might show a rapid decrease in battery
operating time when you try to charge a battery under the following conditions:
The battery has not been used for a long time.
The battery has completely discharged and been left in the computer
for a long time.
In such cases, do the following:
1. Fully discharge the battery by leaving it in the computer with the power on until the system automatically turns itself off.
2. Connect the AC adaptor to the DC IN 19V jack of the computer, and to a wall outlet that is supplying power.
3. Charge the battery until the  DC IN/Battery indicator glows white.
Repeat these steps two or three times until the battery recovers normal capacity.
Monitoring battery capacity Remaining battery power can be monitored using the following methods:
Clicking the battery icon on the Windows Taskbar
Via the Battery Status in the Windows Mobility Center window
Wait several seconds to monitor the remaining operating time because
the computer needs time to check the remaining capacity of the
battery pack and then calculate the remaining operating time, based on this together with the current power consumption.
Be aware that the actual remaining operating time might differ slightly
from the calculated time.
With repeated discharges and recharges, the battery capacity will gradually decrease. In view of this, it is noted that an often used, older
battery will not operate for as long as a new battery even when both are fully charged.
Maximizing battery operating time
The usefulness of a battery depends on how long it can supply power on a
single charge, while how long the charge lasts in a battery depends on:
Processor speed
Screen brightness
System Sleep Mode
System Hibernation Mode
Display power off period
Hard Disk Drive power off period
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							How often and for how long you use the Hard Disk Drive and external
disk drives, for example, optical disc
How much charge the battery contained to begin with
How you use optional devices, such as a USB device, to which the battery supplies power
Whether you enable Sleep Mode, which can conserve battery power ifyou are frequently turning the computer off and on
Where you store your programs and data
Whether you close the display panel when you are not using thekeyboard - closing the display saves power.
The environmental temperature - operating time decreases at low
temperatures.
Whether you enable Sleep and Charge function
Batteries exhausted time When you turn off the power of your computer with batteries fully charged,
the batteries exhaust within the following approximate period.
Battery typeSleep ModeShut Down ModeBattery pack (32Wh, 4
cell)about 3 daysabout 35 daysBattery pack (45Wh, 4
cell)about 3.5 daysabout 50 days
Extending battery life
To maximize the life of your battery packs, do the following at least once a
month.
1. Turn off the computer's power.
2. Disconnect the AC adaptor and turn on the computer's power. If it does not turn on then go to Step 4.
3. Operate the computer on battery power for five minutes. If you find that the battery pack has at least five minutes of operating time,continue operating until the battery pack is fully discharged. However,
if the  DC IN/Battery  indicator flashes or there is some other warning
to indicate a low battery condition, go to Step 4.
4. Connect the AC adaptor to the DC IN 19V jack of the computer, and to a wall outlet that is supplying power. The  DC IN/Battery indicator
glows amber to indicate that the battery pack is being charged. However, if  DC IN/Battery  indicator does not glow, this indicates that
power is not being supplied. Check the connections for the AC adaptor
and the power cord.
5. Charge the battery pack until the  DC IN/Battery indicator glows white.
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							LANThe computer might have built-in support for Ethernet LAN (10 megabits
per second, 10BASE-T), Fast Ethernet LAN (100 megabits per second, 100BASE-TX) or Gigabit Ethernet LAN (1000 megabits per second,
1000BASE-T).
This section describes how to connect/disconnect to a LAN.Do not install or remove a memory module while Wake-up on LAN is enabled (only for models equipped with the memory module cover).The Wake-up on LAN function consumes power even when the
system is off. Leave the AC adaptor connected while using this feature.
The Link speed (10/100/1000 megabits per second) changes
automatically depending on the network conditions (connected device, cable or noise and so on).
LAN cable types
The computer must be configured properly before connecting to a LAN.Logging onto a LAN using the computer’s default settings could cause amalfunction in LAN operation. Check with your LAN administrator regarding
set-up procedures.
If you are using Gigabit Ethernet LAN (1000 megabits per second,
1000BASE-T), be sure to connect with a CAT5e cable or higher. You cannot use a CAT3 or CAT5 cable.
If you are using Fast Ethernet LAN (100 megabits per second, 100BASE-
TX), be sure to connect with a CAT5 cable or higher. You cannot use a
CAT3 cable.
If you are using Ethernet LAN (10 megabits per second, 10BASE-T), you can connect with a CAT3 or higher cable.
Connecting the LAN cable To connect the LAN cable, do the following:
Connect the AC adaptor before connecting the LAN cable. The ACadaptor must remain connected during LAN use. If you disconnect the AC Adaptor while the computer is accessing a LAN, the system might
hang up.
Do not connect any other cable to the LAN jack except the LAN cable.
Otherwise, malfunctions or damage might occur.
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							Do not connect any power supplying device to the LAN cable that is
connected to the LAN jack. Otherwise, malfunctions or damage might occur.
1. Turn off the power to all external devices connected to the computer.
2. Plug one end of the cable into the LAN jack. Press gently until you hear the latch click into place. Figure 4-5 Connecting the LAN cable
1. LAN jack2. LAN cable
Product appearance depends on the model you purchased.
3. Plug the other end of the cable into a LAN hub connector or router. Check with your LAN administrator and hardware or software vendorbefore using or configuring a network connection.
Additional memory module This section is only applicable for models equipped with the memory
module cover.
You can install additional memory into the computer in order to increase
the amount of system memory that is available. This section describes how
to install and remove optional memory modules.
You should place a mat beneath the computer in order to prevent the
computer's lid from scratches or damages when you are installing/
replacing the memory module. In this instance, you should avoid mats that are made of materials that hold or generate static electricity.
When installing or removing a memory module, you must ensure that
you do not touch any other internal areas of the computer.
Use only memory modules approved by TOSHIBA.User's Manual 4-2412  
						

							Do not try to install or remove a memory module under the following
conditions.
a. The computer is turned on.
b. The computer was shut down in either Sleep or Hibernation Mode. c. Wake-up on LAN is enabled.
d. The wireless communication function is on.
e. Sleep and Charge function is enabled.
Be careful not to let screws or other foreign matter fall into the
computer. It could cause malfunction or electric shock.
Additional memory module is a precision electronic component that
might be fatally damaged by static electricity. Since the human body
can carry static electricity, it is important that you discharge yourself
before touching or installing any additional memory modules. To
discharge your body’s static electricity, simply touch any metal close to
you with bare hands.
Use a point size 0 Phillips screwdriver to remove and fasten the screws.
The use of an incorrect screwdriver can damage the screw heads.
Installing a memory module
To install a memory module, do the following:1. Click  Start -> Power  and then select  Restart.
2. Hold down the  F2 key and then release this key one second after the
computer is power on. The TOSHIBA Setup Utility will load.
In the TOSHIBA Setup Utility screen, select  Exit -> Disable Built-in
Battery, and Power Off .
3. Remove the AC adaptor, all cables, and peripherals connected to the computer.
4. Close the display panel and turn the computer upside down. 5. Loosen the screw securing the memory module cover in place. Note that the screw is attached to the cover in order to prevent it from beinglost.
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							6. Slide your fingernail or a thin object under the cover and lift it off.Figure 4-6 Removing the memory module cover1. Screw2. Memory module cover
Product appearance depends on the model you purchased.
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							7. Align the notch of the memory module with that of the memory slotand gently insert the module into the slot at about a 30 degree anglebefore holding it down until the latches on either side snap into place. Figure 4-7 Seating the memory module1. Notch3. Slot A2. Slot B 
Product appearance depends on the model you purchased.
Never allow metal objects, such as screws, staples and paper clips, to
enter the computer. Foreign metal objects can create a short circuit, which can cause computer damage and fire, possibly resulting inserious injury.
Do not touch the connectors on the memory module or on the
computer. Debris on the connectors might cause memory access problems.
The slot A is reserved for the first memory module. Use the slot B forexpanded memory. If only one module is installed, use the slot A.
Align the grooves along the edges of the memory module with the
locking tabs on the connector and insert the module into the connector firmly. If you find it difficult to install the memory module, gently prise
the locking tabs outwards using the tip of your finger.
Also ensure that you hold the memory module along its left and right
hand edges - the edges with the grooves in.
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							8. Seat the memory module cover in place and secure it with the screw.Take care to ensure that the memory module cover is firmly closed.
Figure 4-8 Seating the memory module cover
1. Memory module cover2. Screw
Product appearance depends on the model you purchased.
9. Turn your computer over.
10. Connect the AC adaptor and turn on the computer. Make sure that the added memory is recognized. To confirmed it, click  Control Panel ->
System and Security -> System  under Windows System  group in
All apps .
Removing a memory module To remove the memory module, do the following:
1. Click  Start -> Power  and then select  Restart.
2. Hold down the  F2 key and then release this key one second after the
computer is power on. The TOSHIBA Setup Utility will load.
In the TOSHIBA Setup Utility screen, select  Exit -> Disable Built-in
Battery, and Power Off .
3. Remove the AC adaptor, all cables, and peripherals connected to the computer.
4. Close the display panel and turn the computer upside down. 5. Loosen the screw securing the memory module cover in place. Note that the screw is attached to the cover in order to prevent it from beinglost.
6. Slide your fingernail or a thin object under the cover and lift it off. 7. Push the latches away from the module in order to release it. A spring forces one end of the module up at an angle.
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							8. Grasp the module by its edges and remove it from the computer.If you use the computer for a long time, the memory modules and the
circuits locating close to the memory modules will become hot. In this
case, let them cool to room temperature before you replace them. Or you will get burnt if you touch any of them.
Do not touch the connectors on the memory module or on the
computer. Debris on the connectors might cause memory access problems.
Figure 4-9 Removing the memory module
1. Latches
Product appearance depends on the model you purchased.
9. Seat the memory module cover in place and secure it with the screw.
Take care to ensure that the memory module cover is firmly closed.
10. Turn your computer over.
11. Connect the AC adaptor and turn the computer on.
Memory media The computer is equipped with a memory media slot that canaccommodate some kinds of memory media with various memory
capacities so that you can easily transfer data from devices, such as digital cameras and Personal Digital Assistants.
Keep foreign objects out of the memory media slot. Never allow metal
objects, such as screws, staples and paper clips, to enter the computer or Keyboard. Foreign metal objects can create a short circuit, which cancause computer damage and fire, possibly resulting in serious injury.An adaptor is required to use miniSD/microSD Card.User's Manual 4-291
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