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Acer Aspire 1620 Service Guide

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    							12Aspire 1620
    Understanding the icons
    When the cover of your computer is closed, 2 easy-to-read icons are shown, indicating which state or feature 
    is enabled or disabled.
    #IconFunctionDescription
    1 Power Lights up when the computer is on.
    2 Sleep Lights when the computer enters Standby 
    mode and blinks when it enters into or 
    resumes from hibernation mode. 
    						
    							Chapter 113
     Ke y b o a r d
    The keyboard has full-sized keys and an embedded keypad, separate cursor keys, two Windows keys and 
    twelve function keys.
    Special keys
    Lock keys
    The keyboard has three lock keys which you can toggle on and off.
    Lock keyDescription
    Caps Lock
    @
    When @is on, all alphabetic characters typed are in uppercase.
    Num Lock (Fn-F11)
    ]
    When ] is on, the embedded keypad is in numeric mode. The keys function 
    as a calculator (complete with the arithmetic operators ), -, *, and /). Use this mode 
    when you need to do a lot of numeric data entry. A better solution would be to 
    connect an external keypad.
    Scroll Lock (Fn-F12)
    [
    When [ is on, the screen moves one line up or down when you press the up 
    or down arrow keys respectively. 
    [ does not work with some applications. 
    						
    							14Aspire 1620
    Embedded numeric keypad
    The embedded numeric keypad functions like a desktop numeric keypad. It is indicated by small characters 
    located on the upper right corner of the keycaps. To simplify the keyboard legend, cursor-control key symbols 
    are not printed on the keys.
    Desired accessNum lock onNum lock off
    Number keys on embedded 
    keypadType numbers using embedded keypad in a 
    normal manner.
    Cursor-control keys on embedded 
    keypadHold Shift while using cursor-control keys. Hold Fn while using cursor-control 
    keys.
    Main keyboard keys Hold Fn while typing letters on embedded 
    keypad.Type the letters in a normal manner. 
    						
    							Chapter 115
    Windows keys
    The keyboard has two keys that perform Windows-specific functions.
    KeysDescription
    Windows logo keyStart button. Combinations with this key perform shortcut functions. Below 
    are a few examples:
     + Tab (Activates next taskbar button)
     + E (Explores My Computer)
     + F (Finds Document)
     + M (Minimizes All)
    j+  + M (Undoes Minimize All)
     + R (Displays the Run... dialog box)
    Application key Opens a context menu (same as a right-click). 
    						
    							16Aspire 1620
    Hot Keys
    The computer employs hot keys or key combinations to access most of the computer’s controls like screen 
    contrast and brightness, volume output and the BIOS Utility.
    To activate hot keys, press and hold the Fn key before pressing the other key in the hot key combination.
    Hot KeyIconFunctionDescription
    Fn-
    lHotkey help Displays a list of the hotkeys and their functions.
    Fn-
    mSetup Accesses the notebook configuration utility. 
    Fn-
    nPower Management 
    Scheme ToggleSwitches the power management scheme used by the 
    computer (function available if supported by operating 
    system). 
    Fn-
    oSleep Puts the computer in Sleep mode.
    Fn-
    pDisplay toggle Switches display output between the display screen, 
    external monitor (if connected) and both the display 
    screen and external monitor.
    Fn-
    qScreen blank Turns the display screen backlight off to save power. 
    Press any key to return.
    Fn-
    rTouchpad toggle Turns the internal touchpad on and off.
    Fn-
    sSpeaker toggle Turns the speakers on and off; mutes the sound.
    Fn-
    wVolume up Increases the sound volume.
    Fn-
    yVolume down Decreases the sound volume.
    Fn-
    xBrightness up Increases the screen brightness. 
    						
    							Chapter 117
    The Euro symbol
    If your keyboard layout is set to United States-International or United Kingdom or if you have a keyboard with a 
    European layout, you can type the Euro symbol on your keyboard.
    NOTE: for US keyboard users: The keyboard layout is set when you first set up Windows.  For the Euro 
    symbol to work, the keyboard layout has to be set to United States-international.
    To verify the keyboard type:
    1.Click on Start, Control Panel.
    2.Double-click on Regional and Language Options.
    3.Click on the Language tab and click on Details.
    4.Verify that the keyboard layout used for “En English (United States) is set to United States-International.
    If not, select and click on ADD; then select United States-International and click on OK.
    5.Click on OK.
    To type the Euro symbol:
    1.Locate the Euro symbol on your keyboard.
    2.Open a text editor or word processor.
    3.Hold 
    aGr and press the Euro symbol.
    Fn-
    ¨zBrightness down Decreases the screen brightness.
    Fn-
    {Home
    Functions as the g key.
    Fn-
    }End
    Functions as the d key.
     
    aGr-EuroEuro Types the Euro symbol.
    Hot KeyIconFunctionDescription 
    						
    							18Aspire 1620
     Launch Keys
    Located at the top of the keyboard are six buttons. These buttons are called lauch keys. They are designated 
    as mail button, Web browser button, P1, P2, Bluetooth and Wireless buttons. The Wireless and Bluetooth 
    buttons cannot be set by the user. To set the other four launch keys, run the Acer Launch Manager.
     
    #IconFunctionDescription
    1 Mail Launches email application
    2 Web browser Launches Internet browser application
    3 P1 User-programmable
    4 P2 User-programmable
    5 Bluetooth Enables your Bluetooth (manufacturing option).
    6 InviLink Enables your 802.11b or 802.11g Wireless LAN. 
    						
    							Chapter 119
    Hardware Specifications and Configurations
     System Board Major Chips
    Item Controller
    System core logic ATI RC300M+ATI IXP150
    Super I/O controller NS PC87392
    Audio controller Realtek ALC655
    Video controller ATI Radeon 9700
    Hard disk drive controller Embedded in ATI IXP 150
    Keyboard controller Mitsubish LPC keyboard controller M38857
    CardBus Controller TI 1520
    RTC ATI IXP 150
    Processor
    ItemSpecification
    CPU type
    Intel
    ® Pentium® 4 Processor 2.80 Ghz and above
    CPU package  FC-PGA2
    CPU core voltage 1.2V
    CPU I/O voltage High speed: 1.525V or 1.55V
    Low speed: 1.2V
    BIOS
    ItemSpecification
    BIOS vendor Phoenix BIOS
    BIOS Version
    BIOS ROM type Flash ROM
    BIOS ROM size 512KB
    BIOS package 32 Pin PLCC
    Supported protocols ACPI 1.0b, SMBIOS 2.3, PCI 2.2, Boot Block, PXE 2.0, Mobile PC2001, 
    Hard Disk Password, INT 13h Extensions, PCI Bus Power Management 
    interface Specification, EI Torito-Bootable CD-ROM Format Specification 
    V1.0, Simple Boot Flag 1.0
    BIOS password control Set by switch, see SW5 settings on chapter 5
    Second Level Cache
    ItemSpecification
    Cache controller Built-in CPU
    Cache size 512KB for Intel Northwood CPU and Mobile Pentium 4; 1MB for Intel Prescott 
    CPU
    1st level cache control Always Enabled
    2nd level cache control Always Enabled
    Cache scheme control Fixed-in write back 
    						
    							20Aspire 1620
    Above table lists some system memory configurations. You may combine DIMMs with various capacities to 
    form other combinations.  System Memory
    ItemSpecification
    Memory controller ATI RC300M
    Onboard memory size 0MB 
    DIMM socket number 2 Sockets
    Supports memory size per socket 128/256/512/1024MB (if available)
    Supports maximum memory size 2048MB (Please confirm if 1024MB has passed the test or not)
    Supports DIMM type DDR-DRAM
    Supports DIMM Speed 333 MHz
    Supports DIMM voltage 2.5 V
    Supports DIMM package 200-pin so-DIMM
    Memory module combinations You can install memory modules in any combinations as long as they 
    match the above specifications.
    Memory Combinations
    Slot 1Slot 2To ta l  M e m o r y
    0MB 128MB 128 MB
    128MB 0MB 128 MB
    128MB 128MB 256 MB
    256MB 0MB 256MB
    0MB 256MB 256MB
    256MB 128MB 384MB
    128MB 256MB 384MB
    256MB 256MB 512MB
    0MB 512MB 512MB
    512MB 128MB 640MB
    256MB 512MB 768MB
    128MB 512MB 640MB
    512MB 256MB 768MB
    256MB 128MB 384MB
    512MB 512MB 1024MB
    LAN Interface
    ItemSpecification
    Chipset RealTek RTL8100C
    Supports LAN protocol 10/100Mbps
    LAN connector type RJ45
    LAN connector location Rear side
    Modem Interface
    ItemSpecification
    Chipset Built-in ATI IXP150
    Fax modem data baud rate (bps) 14.4K
    Data modem data baud rate (bps) 56K 
    						
    							Chapter 121
    .
    Supports modem protocol V.90/V.92MDC
    Modem connector type RJ11
    Modem connector location Rear side
    Hard Disk Drive Interface
    Item
    Vendor & Model 
    NameHGST Moraga 
    IC25N030ATMR04
    Fujitsu V-40 MHT2030AT
    Seagate N1 ST93015AHGST Moraga 
    IC25N040ATMR04-
    TOSHIBA Pluto 40G 
    MK4025GAS
    Fujitsu V40+ MHT2040AT
    Seagate N1 ST94019AHGST Moraga 
    IC25N060ATMR04-0
    TOSHIBA Neptune 
    MK6021GAS
    Capacity (MB) 30000 40000 60000
    Bytes per sector 512 512 512
    Logical heads 16 16 16
    Logical sectors 63 63 63
    Drive Format
    Logical cylinders 16383 16383 16383
    Physical read/write 
    heads2/Not show/2 2/Not show/2/2 3/4
    Disks 1/Not show/1 1/Not show/1/1 2
    Spindle speed (RPM) 4200RPM 4200RPM 4200RPM
    Performance Specifications
    Buffer size  2MB 2MB/8MB for Toshiba 2MB/8MB for HGST
    Interface ATA-5 for other vendors /ATA-
    6 for HGST and ToshibaATA-5 for other vendors /ATA-
    6 for HGSTATA - 5 / ATA - 6  f o r  H G S T
    Data transfer rate 
    (disk-buffer, Mbytes/
    s)350 350 350
    Data transfer, rate 
    (host~buffer, Mbytes/
    s)100 MB/Sec 100 MB/Sec 100MB/Sec
    DC Power Requirements
    Voltage tolerance 5 +/- 5% 5 +/- 5% 5 +/- 5%
    CD-ROM Interface
    ItemsSpecification
    Vendor & Model Name QSI SCR242
    Mitsumi SR244W1
    Performance Specification
    Brust Data Transfer rate  PIO mode 4:
               16.7 MB/sec Max. (Mode 0~4)
    Multi-word DMA mode 2:
               16.7 MB/sec Max. (Mode 0~2)
    Ultra DMA mode 2:
               33.3MB/sec Max.
    Modem Interface
    ItemSpecification 
    						
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