User manual ACER ASPIRE 5551

[. . . ] Slots and openings in the housing and the back or bottom are provided for ventilation; to ensure reliable operation of the product and to protect it from overheating, these openings must not be blocked or covered. The openings should never be blocked by placing the product on a bed, sofa, rug or other similar surface. This product should never be placed near or over a radiator or heat register, or in a built-in installation unless proper ventilation is provided. This product should be operated from the type of power indicated on the marking label. [. . . ] If the product exhibits a distinct change in performance, indicating a need for service. e f 12. Replace the battery with the same type as the product's battery we recommend. Use only the proper type of power supply cord set (provided in your accessories box) for this unit. It should be a detachable type: UL listed/ CSA certified, type SVT, rated 7A 125V minimum, VDE approved or its equivalent. Maximum length is 15 feet (4. 6 meters). Laser compliance statement The CD or DVD drive in this computer is a laser product. The CD or DVD drive's classification label (shown below) is located on the drive. AVOID EXPOSURE TO BEAM. Lithium battery statement CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions. English Macrovision® statement This product incorporates copyright protection technology that is protected by method claims of certain U. S. patents and other intellectual property rights owned by Macrovision Corporation and other rights owners. Use of this copyright protection technology must be authorized by Macrovision Corporation, and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation. To ensure correct installation, refer to the documentation that comes with your new components before you start to add or replace components. Possible upgrade options include the following: · · · · · Replace the HDD with a higher capacity model, or add a second HDD. Install a graphics card as a substitute for the embedded graphics subsystem. Install an add-on card, such as a fax/modem card, in one of the empty PCI slots. Opening The Case Before you open the case, turn your computer off and unplug the power cord from the wall outlet. a) Gently lay down the computer on a flat surface to access the side panel of the unit. b) Push the case lock to the right and pull the side panel toward you to remove the side panel. 9 Frequently asked questions The following questions are possible situations that may arise during the use of your computer and each is followed by easy answers and solutions to the situation. Do any of the following: · · · Check if the voltage selector switch located on the rear panel of the computer is set to the correct voltage. Check if you plugged the power cable properly into an electrical outlet. If you are using a power strip or AVR, make sure that it is plugged in and turned on. If yes, remove or replace it with a system diskette and press Ctrl + Alt + Del to restart your computer. Insert the startup disk you created during Windows setup into the floppy drive and press Ctrl + Alt + Del to restart your computer. [. . . ] The total ampere rating of the equipment plugged in should not exceed the ampere rating of the cord if you are using an extension cord. Also, the total current rating of all equipment plugged into a single wall outlet should not exceed the fuse rating. · · Cleaning and servicing To clean your computer and keyboard 1 2 Turn off the computer and unplug the power cord. Use a soft cloth moistened with water and gently wipe the exterior of the computer and the keyboard. Do not use liquid or aerosol cleaners. To clean your pointing device To clean a regular mouse (with rubber ball) 1 Open the circular cover at the base of the mouse. [. . . ]