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Adjust the brightness settings of the display also. Sony Notebook Computer User Guide . Lighting – Choose a location where windows and lights do not create glare and reflection on the display. Use indirect lighting to avoid bright spots on the display. You can also purchase accessories for your display that help reduce glare. Proper lighting adds to your comfort and work effectiveness. . Placement of an external display – When using an external display, set the display at a comfortable viewing distance. Make sure the display screen is at eye level or slightly lower when you are sitting in front of the monitor. . Tilt stand - You may use the optional extended PCGA-BP52 battery pack as a tilt stand to place the computer at an angle that allows comfortable typing. Using Your Notebook Computer This section describes how to start using your computer and how to use your computer ’s internal and external devices, such as the touchpad and the floppy disk drive. Locating the Controls and Connectors Front LCD screen 8 Num Lock indicator (page 19) Microphone 9 Caps Lock indicator (page 19) Keyboard (page 16) 10 Scroll Lock indicator (page 19) Touchpad (page 21) 11 Information indicator (page 19) Left/right button (page 21) 12 Battery indicator (pages 10, 19) Speaker 13 Power indicator (pages 12, 19) Hard disk drive indicator (page 19) Sony Notebook Computer User Guide Back Battery connector (page 9) Left Plastic pen compartment (page 22) 6 1 200 i.LINK (IEEE1394) (page 49) Port replicator connector (page 40) 7 USB connector (page 50) 2 8 Floppy Disk Drive connector (page 24) Line In connector 3 External speaker connectors (page 47) 9 Headphone connector 4 5 DC In connector (page 8) Using Your Notebook Computer Right 1 Infrared port (page 29) 3 Programmable power key 2 Power switch (page 12) 4 PC card slot (page 26) Bottom Battery release lever (pages 9, 11) 1 11 Battery lock lever (pages 9, 11) 2 22 - All connectors for this notebook are SELV (Safety Extra Low Voltage), according to EN60950. Phone cable and connectors are TNV (Telecommunication Network Voltage), according to EN 60950. AC adapter mains connector and power cord: hazardous voltage, according to EN 60950. Sony Notebook Computer User Guide Connecting a Power Source You can use either AC power or a rechargeable battery pack as a power source. Using the AC Adapter 1 Plug the cable attached to the AC adapter into the DC In connector on the computer. 2 Plug one end of the power cord into the AC adapter. 3 Plug the other end of the power cord into an AC outlet. Notebook computer DC in AC adapter (supplied) - Use your notebook only with the supplied AC adapter. To disconnect your notebook completely from mains voltage, unplug the AC adapter. Please make sure that the socket outlet is easily accessible. Using Your Notebook Computer Using Battery Power You can use a battery pack as a source of power. The PCGA-BP51 battery pack that comes with your computer is not fully charged at the time of purchase. Follow the steps below to insert and charge the battery pack. - You can also purchase the high-capacity PCGA-BP52 battery pack as a separate option. See “Using Power Saving Modes” on page 31 for power management information. - For some software applications and some peripheral devices, your computer may not enter system hibernation mode when the battery life is low.To avoid loss of data when using battery power, you should save your data frequently and manually activate a power management mode, such as systemsusupend or system hibernation. To insert the battery pack 1 Move the lock lever on the bottom of the computer to the UNLOCK position. Lock lever 2 Align the grooves and tabs on the battery with the tabs and notches on the back of the computer, and then slide the battery towards the computer until it clicks into place. Grooves Tabs 3 Slide the lock lever into the LOCK position to secure the battery on the computer. Sony Notebook Computer User Guide To charge the battery pack 1 Connect the AC adapter to the computer. 2 Insert the battery pack. The computer automatically charges the battery (the battery indicator light flashes in a double blink pattern as the battery charges). When the battery is 85% full, the battery indicator light turns off. This process takes approximately one and one half hours. To charge the battery completely, continue charging for an additional hour. To remove the battery pack A fully charged battery pack provides power for: Model PCGA-BP51 PCGA-BP52 PCG-505E Up to 2.5 hours Up to 5 hours The time varies based on your system configuration. See “Displaying Battery Information” on page 59. The battery indicator light on the front of the computer indicates the status of the battery pack. Battery indicator Battery pack (supplied) Battery Indicator Light Status Meaning On The computer is using battery power. Battery and power indicators blink The battery is running out of power. once Double blink The battery is charging. Off The computer is usin...