Acer Travelmate 4050 Service Guide
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14Chapter 1 Lock Keys The keyboard has four lock keys which you can toggle on and off. Lock KeyDescription Caps Lock When Caps Lock is on, all alphabetic characters typed are in uppercase. Pad lock (Fn-F10)When Pad Lock is on, the embedded keypad is enabled. In this mode the keypad is cursor function. Num lock (Fn-F11)When Num Lock 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 Scroll Lock is on, the screen moves one line up or down when you press w and y respectively. Scroll Lock does not work with some applications.
Chapter 115 Embedded Numeric Keypad The embedded numeric keypad functions like a desktop numeric keypad. It is indicated by small characters located on the right hand side of the keycaps. Desired AccessNum Lock OnNum Lock Off Number keys on embedded keypadType numbers in a normal manner. Main keyboard keys Hold while typing letters on embedded keypad.Type the letters in a normal manner.
16Chapter 1
Windows Keys
The keyboard has two keys that perform Windows-specific functions.
KeyDescription
Windows logo key Start button. Combinations with this key perform special
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).
Chapter 117 Hot Keys The computer uses hotkey or key combinations to access most of the computer’s controls like sreen brightness and volume output. To activate hot keys, press and hold the Fn key before pressing the other key in the hot key combination. Hot KeyIconFunctionDescription Fn-Esc Sleep Puts the computer in Sleep mode. Fn-F5 Display toggle Switches display output between the display screen, external monitor (if connected) and both the display screen and external monitor. Fn-End Speaker toggle Turns the speakers on and off. Fn-PgUp Volume up Increases the speaker volume. Fn-PgDn Volume down Decreases the speaker volume. Fn-wBrightness up Increases the screen brightness. Fn-yBrightness down Decreases the screen brightness
18Chapter 1 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 in Windows 2000 and Windows Millennium Edition, follow the steps below: 1.Click on Start, Settings, Control Panel. 2.Double-click on Keyboard. 3.Click on the Language tab. 4.Verify that keyboard layout used for “En English (United States)” is set to United States-International. If not, select and click on Properties; then select United States-International and click on OK. 5.Click on OK. To verify the keyboard type in Windows XP, follow the steps below: 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 Alt Gr and press the Euro symbol. NOTE: Some fonts and software do not support the Euro symbol. Please refer to www.microsoft.com/ typography/faq/faq12.htm for more information.
Chapter 119 Launch Keys Located at the top of keyboard are three buttons. The left-most button is the power button. To the right of the power button are the two launch keys. They are designated as the programmable buttons (P1 and P2). Launch KeyDefault application e Acer eManager application (User-programmable) P User-programmableLaunch key Default application
20Chapter 1 Touchpad The built-in touchpad is a pointing device that senses movement on its surface. This means the cursor responds as you move your finger on the surface of the touchpad. The central location on the palmrest provides optimum comfort and support. Touchpad Basics The following items teach you how to use the touchpad: TMove your finger across the touchpad to move the cursor. TPress the left and right buttons located on the edge of the touchpad to do selection and execution functions. These two buttons are similar to the left and right buttons on a mouse. Tapping on the touchpad produces similar results. NOTE: Keep your fingers dry and clean when using the touchpad. Also keep the touchpad dry and clean. The touchpad is sensitive to finger movements. Hence, the lighter the touch, the better the response. Tapping harder will not increase the touchpad’s responsiveness. FunctionLeft ButtonRight ButtonTa p Execute Click twice quicklyTap twice (at the same speed as double-clicking the mouse button) Select Click once Tap once Drag Click and hold, then use finger to drag the cursor on the touchpadTap twice (at the same speed as double-clicking a mouse button) then hold finger to the touchpad on the second tap to drag the cursor Access context menuClick once
Chapter 121 Hardware Specifications and Configurations Processor ItemSpecification CPU type Intel ® Pentium® M Processor at 1.4~2.1 GHz Intel ® Celeron® M Processor at 1.2~1.5 GHz CPU package FCBGA package CPU core voltage Intel ® Pentium® M Processor supports automatic selection of power supply voltage CPU I/O voltage 1.05V BIOS ItemSpecification BIOS vendor Insyde BIOS Version Insyde MobilePRO BIOS 4.0 BIOS ROM type Flash ROM BIOS ROM size 512KB BIOS package 32 lead of PLCC Bupported protocols ACPI 1.0b,PC Card 95, SM BIOS 2.3, EPP/IEEE 1284, ECP/IEEE 1284 1.7 & 1.9, PCI 2.2, PnP 1.0a, DMI 2.0, USB, VGA BIOS, CD-ROM bootable BIOS password control Set by setup manual Second Level Cache ItemSpecification Cache controller Built-in CPU Cache size Intel ® Pentium® M Processor 1M/2M Intel ® Celeron® M Processor 512K 1st level cache control Always enabled 2nd level cache control Always enabled Cache scheme control Fixed in write-through System Memory ItemSpecification Memory controller Intel 855GME Memory size 128MB/256MB/512MB/1024MB(1GB) DIMM slot number 2 slots Supports memory size per socket 1GB Supports maximum memory size 2GB (by two 1024MB SO-DIMM module) Supports DIMM type DDR Synchronous DRAM Supports DIMM Speed 333 MHz Supports DIMM voltage 2.5V 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. µ
22Chapter 1 NOTE: Above table lists some system memory configurations. You may combine DIMMs with various capacities to form other combinations. . . Memory Combinations Slot 1Slot 2Total Memory 0MB 128MB 128MB 0MB 256MB 256MB 0MB 512MB 512MB 0MB 1024MB 1024MB 128MB 0MB 128MB 128MB 128MB 256MB 128MB 256MB 384MB 128MB 512MB 640MB 128MB 1024MB 1152MB 256MB 0MB 256MB 256MB 128MB 384MB 256MB 256MB 512MB 256MB 512MB 768MB 256MB 1024MB 1280MB 512MB 0MB 512MB 512MB 128MB 640MB 512MB 256MB 768MB 512MB 512MB 1024MB 512MB 1024MB 1536MB 1024MB 0MB 1024MB 1024MB 128MB 1152MB 1024MB 256MB 1280MB 1024MB 512MB 1536MB 1024MB 1024MB 2048MB(2G) LAN Interface ItemSpecification Supports LAN protocol 10/100 Mbps LAN connector type RJ45 LAN connector location Rear Side Modem/Bluethooth Interface ItemSpecification Data modem data baud rate (bps) 56K Supports modem/bluetooth protocol V.90/V.92 WWDAA Modem connector type RJ11 Modem connector location Rear Side
Chapter 123 Hard Disc Drive Interface ItemSpecification Functionality Model Name Toshiba MK3025GASHitachi HTS424030M9AT00Seagate 2.75”W. 37”H ST94019A Capacity (MB) 30000 30000 40000 Bytes per sector 512 512 512 Data heads 2 2 3 Data Disks 1 1 2 Spindle speed (RPM) 4200 RPM 4200 RPM 4200 RPM Performance Specifications Buffer size 2MB 2MB 2048KB Interface ATA-5 ATA-6 ATA-5 Media transfer rate (disk- buffer, Mbytes/s, max)154.3~298.0Mbits/sec 370Mbits/sec 386Mbits/sec Interface transfer rate (host~buffer, Mbytes/ s,max)100Mbytes/sec. Ultra DMA mode-5100 MB/Sec. Ultra DMA mode-5100 MB/Sec. Ultra DMA mode-5 DC Power Requirements Voltage tolerance 5V(DC) +/-5% 5V(DC) +/- 5% 5V(DC) +/- 5% Combo Drive Interface ItemSpecification Vendor & model nameQSI SBW-242C HLDS GCC-4243N Diameter 12cm and 8cm CapacityCD-ROM DVD-ROM 650