Acer Travelmate 220 Service Guide

22
Chapter 1
 
Maximum resolution (LCD) 1024 x768 (32bit colors
Maximum resolution (CRT 1024x768 (32 bit colors
1280x1024 (32 bit colors
1600x1200 (32 bit colors
Video Memory
ItemSpecification
Fixed or upgradeable Fixed, share the system memory
Video memory size 8MB
Video Resolutions Mode
ResolutionRefresh Rate
CRT Only LCD/CRT Simultaneous
640x480x256 90 60
640x480x64K 90 60
640x480x16M 90 60
800x600x256 90 60
800x600x64K 90 60
1024x768x256 90 60
Parallel Port
ItemSpecification
Parallel port controller...

Chapter 123
  
   
 
Optional serial port IRQ (in BIOS Setup) IRQ4, IRQ3
USB Port
ItemSpecification
USB Compliancy Level 1.1 
OHCI USB 1.1
Number of USB port 2 
Location Rear side 
Serial port function control Enable/Disable by BIOS Setup
PCMCIA Port
ItemSpecification
PCMCIA controller O2-Micro Cardbus Controller OZ6912T-U 
Supports card type Type III/II
Number of slots One type III or one type II 
Access location Left side 
Supports ZV (Zoomed Video) port Yes
Supports 32 bit CardBus  Yes (IRQ9)...

24Chapter 1
NOTE: DC-AC inverter is used to generate very high AC voltage, then support to LCD CCFT backlight user, 
and is also responsible for the control of LCD brightness. Avoid touching the DC-AC inverter area while  
the system unit is turned on. 
NOTE:  There is an EEPROM in the inverter, which stores its supported LCD type and ID code. If you replace a 
new inverter or replace the LCD with a different brand, use Inverter ID utility to update the ID 
information.
Output Rating +5V 3.3V 12V...

Chapter 125
Supply voltage for LCD backlight (Vrms) 650 (typ.) 650 (typ.)
AC Adapter
ItemSpecification
Vendor & model name Delta ADP-60DB
Input Requirements
Maximum input current (A, 
@90Vac, full load)1.5 A @ 115Vac
1.0 A @ 230Vac
Nominal frequency (Hz 50-60
Frequency variation range (Hz) 47-63
Input voltage range (Vrms) 90-270
Inrush current The maximum inrush current will be less than 50A and 100A when the adapter 
is connected to 115Vac and 230Vac respectively.
Efficiency  It should provide an...

26
Chapter 1
 
Power Management 
Power Saving ModePhenomenon
Standby Mode
Enter Standby Mode when
1.Standby/Hibernation hot-key is pressed 
and system is not ready to enter Hibernation 
mode.
2.System standby/ Hibernation timer expires 
and system is not ready to enter Hibernation 
mode.
!The buzzer beeps!The Sleep indicator lights u
Hibernation Mode
Enter Hibernation Mode (suspend to HDD) 
when
1.Hibernation hot-key is pressed and 
system is ready to enter Hibernation mode
2.System Hibernation timer...

Chapter 127
Drive Bays One
Material Plastic
Indicators Power-on, Standby, Battery Status, Media Access, CapsLock and NumLock
Switch Power
Memory Address Map
Memory AddressSizeFunction
00000000-0009FFFF 640 KB Base memory
80600000-80600FFF
80620000-8063FFFF
81000000-81FFFFF
000A0000-000CFFFF4 KB Intel 82830MG
128 KB
3 MB
192 KB
08000000-08000FFF
08001000-08001FFF4 KB O2 Micro OZ6812 Cardbus Controller
4 KB
82400000-82400FFF 4 KB USB
82200000-82200FFF 4 KB Audio
I/O Address Map
I/O AddressFunction
000-00F...

28
Chapter 1
NOTE: 
IRQ settings may be changed by OS IRQ Assignment Map
Interrupt ChannelFunction
NMI System errors
IRQ0 System timer
IRQ1 Keyboard
IRQ2 Programmable interrupt controller
IRQ3 Reserved
IRQ4 COM1
IRQ5 Reserved
IRQ6 Floppy
IRQ7 LPT1
IRQ8 Real time clock
IRQ9 SCI
IRQ10 Audio/Mode
IRQ11 USB/VGA/Cardbus
IRQ12 PS2 pointing device
IRQ13 Numeric data processor
IRQ14 1st IDE device (hard disk)  
IRQ15 2nd EIDE device (CD-ROM drive)
DMA Channel Assignment
DMA ChannelFunction
DRQ0 Not used
DRQ1 Not...

Chapter 229
BIOS Setup Utility
The BIOS Setup Utility is a hardware configuration program built into your computer’s BIOS (Basic Input/
Output System).
Your computer is already properly configured and optimized, and you do not need to run this utility. However, if 
you encounter configuration problems, you may need to run Setup. Please also refer to Chapter 4 
Troubleshooting when problem arises.
To activate the BIOS Utility, press 
m
mm m during POST (while the TravelMate logo is being displayed).
BIOS...

30Chapter 2
Multi-Boot Menu
Users can press F12 during POST to enter the Multi Boot Selection Menu. In this menu users can change boot 
device without entering BIOS SETUP utility.
NOTE: 
If users disable the multi boot selection menu in BIOS SETUP utility, the message “ Press F12 to enter 
the multi boot selection menu” will not appear during POST.
NOTE: 
If users disable the “Boot from LAN” option in BIOS SETUP utility, then the option of Realtek PXE2.0 
Boot Agent will not appear.
Navigating the BIOS...

Chapter 231
System Information
The System Information screen displays a summary of your computer hardware information.
NOTE: 
The screen above is a sample and may not reflect the actual data on your computer. “X” may refer to a 
series of numbers and/or characters.
The following table describes the information in this screen.
The items in this screen are important and vital information about your computer. If you experience computer 
problems and need to contact technical support, this data helps our...