Acer Travelmate 220 Service Guide

12
Chapter 1
NOTE: 
If an external keyboard or keypad is connected to the computer, the Num Lock feature automatically 
shifts from the internal keyboard to the external keyboard or keypad.
Windows keys
The keyboard has two keys that perform Windows-specific functions.
Desired accessNum lock onNum lock off
Number keys on embedded 
keypadType numbers in a normal manner.
Cursor-control keys on embedded 
keypadHold Shift while using cursor-control keys. Hold Fn while using cursor-control 
keys.
Main...

Chapter 113
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-F1 Hotkey help Displays a list of the hotkeys and their functions.
Fn-F2 Setup Accesses the notebook configuration utility. 
Fn-F3 Power Scheme Toggle Switches between the power...

14
Chapter 1
 Launch Keys
Located at the top of the keyboard are four buttons. These buttons are called launch keys. They are 
designated as key 1, key 2, key 3 and key 4. By default, key 1 is used to launch the internet browser and key 2 
is used to launch the e-mail application. Keys 3 and 4 starts the Launch Manager application. All four keys can 
be set by the user. To set the launch keys, run the Acer Launch Manager. 

Chapter 115
Touchpad
The built-in touchpad is a PS/2-compatible pointing device that senses movement on its surface. This means 
that 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.
NOTE: 
When using an external USB or serial mouse, you can press Fn-F7
 to disable the touchpad. If you are 
using an external PS/2 mouse, the touchpad is automatically disabled.
Touchpad basics
The following items teach...

16
Chapter 1
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 ButtonCenter ButtonTa p
Execute Click twice quickly Tap twice (at the same 
speed as double-
clicking a mouse 
button)
Select Click once Tap once
Drag Click and hold, then 
use finger to drag the...

Chapter 117
Hardware Specifications and Configurations
System Board Major Chips
Item Controller
System core logic Intel 830 MG with VGA integrated
Intel ICH3-M with Audio integrated
Super I/O controller SMCLPC4L47M227
Audio controller Intel ICH
Video controller Intel 830MG
Hard disk drive controller Embedded in Intel ICH3-M
Keyboard controller Mitsubish 38859F
RTC BQ3285LFHP
Processor
ItemSpecification
CPU type Intel Mobile PIII with 512KB Cache
Intel Celeron 1.06GHz processor with 256K
B cache
CPU...

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Chapter 1
Above table lists some system memory configurations. You may combine DIMMs with various capacities to 
form other combinations.
NOTE: 
The shipping specification for DIMM combination is 64MB in slot 1. System Memory
ItemSpecification
Memory controller Intel 830MG
Onboard memory size 0MB 
DIMM socket number 2 Sockets
Supports memory size per socket 128/256/512 MB
Supports maximum memory size 1024 MB (512MB x 2)
Supports DIMM type SDRAM
Supports DIMM Speed 133 MHz
Supports DIMM voltage 3.3 V...

Chapter 119
  Modem Interface
ItemSpecification
Chipset Ambit MDC module with Lucent modem controller
Fax modem data baud rate (bps) 14.4K
Data modem data baud rate (bps) 56K
Supports modem protocol V.90MDC
Modem connector type RJ11
Modem connector location Rear side
Floppy Disk Drive Interface
ItemSpecification
Vendor & model name Mitsumi D353G W/I BEZ
MCI JU-226A033
Floppy Disk Specifications
Media recognition 2DD (720KB 2HD (1.2 MB, 3 mode) 2HD (1.44MB)
Sectors/track 9 15 18
Tracks 80 80 80
Data...

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Chapter 1
CD-ROM Interface
ItemsSpecification
Vendor & Model Name MKE CR-177-B/D Mitsumi SR-243T
Performance Specification
Transfer rate  CAV Mode:
      775~1800 blocks/sec
Mode 1:
      1550~3600 kBytes/sec
Mode 2:
      1768~4106kBytes/secRead Sustained:
           1545~3600 KB/sec
Programmed I/O:
           16.7 MB/sec Max. (Mode 0~4
Multi-word DMA:
           16.7 MB/sec Max. (Mode 0~2
Ultra DMA:
           33.3MB/sec Max.
Access time (typ.) Random: 100 ms
Full Stroke: 200 msRandom: 115 ms
Full...

Chapter 121
(*1) Average of Data read over the whole area from 00 min. 02 sec. 00 block to 59 min. 58 sec. 74 block more 
than    2000 times including latency and layered error correction time.
(*2) From 00 min. 02 sec. 00 block to 59 min. 58 sec. 74 block including latency and layered error correction 
time.
(*3) Disc:  MNSU-005
(*4) Average of Data read over the whole area from starting data recorded area (LBA:0) to maximum data 
recorded area (LBA:23197F), more than 2000 times including latency and...