Acer Travelmate 620 Service Guide

Chapter 123
  
Applicable disc format DVD: DVD-5, DVD-9, DVD-10, DVD-R (3.95G)
CD: CD-Audio, CD-ROM (mode 1 and mode 2), CD-ROM XA (mode 2, form 1 
and form 2), CD-I (mode 2, form 1 and form 2), CD-I Ready, CD-I Bridge, CD-
WO, CD-RW, Photo CD, Video CD, Enhanced Music CD, CD-TEXT
Loading mechanism Soft eject (with emergency eject hole)
Power Requirement
Input Voltage 5V(DC) +/- 5%
Audio Interface
ItemSpecification
Audio Controller Cirrus Logic Realtek ALC 201
Audio onboard or optional Built-in
Mono or...

24Chapter 1
 
Video Resolutions Mode (for both LCD and CRT)
Resolution8 bits
(256 colors)16 bits
(High color)24 bits
(True color)32 bits
(True color)
640x480 Yes Yes Yes Yes
720x480 Yes Yes Yes Yes
800x600 Yes Yes Yes Yes
848x480 Yes Yes Yes Yes
1024x768 Yes Yes Yes Yes
1152x864 Yes Yes Yes Yes
1280x1024 Yes Yes Yes Yes
1400x1050 Yes Yes Yes Yes
1600x1200 Yes Yes Yes Yes
Parallel Port
ItemSpecification
Parallel port controller SMSC LPC47N267
Number of parallel port 1
Location Rear side
Connector type...

Chapter 125
  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
IrDA Port
ItemSpecification
IrDA FIR port controller SMSC LPC47N267 
Number of IrDA FIR port 1
Location Left side
IrDA FIR port function control Enable/disable by BIOS Setup
IrDA FIR port (in BIOS Setup) 2F8
IrDA FIR port IRQ (in BIOS Setup) IRQ3
ECP DMA channel 
(in BIOS Setup)DMA channel 3
Optional IrDA FIR port DRQ (in BIOS...

26Chapter 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.
Windows 95 keys Yes
Internal &...

Chapter 127
Electrical Specification
Supply voltage for LCD display (V) 3.3
Supply voltage for LCD backlight 
(Vrms)690
AC Adapter
ItemSpecification
Vendor & model name Delta ADT-60XB D 3P
Input Requirements
Maximum input current (A, 
@90Vac, full load)1.5 A    @   90Vac
0.9 A    @ 180Vac
Nominal frequency (Hz) 47 - 63
Frequency variation range (Hz) 47 - 63
Nominal voltages (Vrms) 90 - 270
Inrush current The maximum inrush current will be less than 50A and 100A when the adapter 
is connected to...

28Chapter 1
 
Power Management 
Power Saving ModePhenomenon
Standby Mode
Waiting time specified by the System 
Standby value or the operating system 
elapses without any system activity.
Or
When the computer is about to enter 
Hibernation mode (e.g., during a battery-low 
condition), but the Hibernation file is invalid 
or not present.
!The Sleep indicator lights up
Hibernation Mode
When customized functions for power 
management are set to 
Hibernation and the 
corresponding action is taken.
!All power...

Chapter 129
Mechanical Specification
ItemSpecification
Dimensions 323 (W) x 265 (D) x 35(H) for 15.0” TFT
Weight less than 5.9 lbs for 15.0” TFT model
I/O Ports 2 type II or one type III CardBus socket(s), 1 RJ-11 modem port, 1 RJ-45 LAN port, 
1 DC-in jack (AC adapter), 1 FIR port, 1 parallel port, 1 serial port, 1 external 
monitor port, 1 PS/2 keyboard/mouse port, 1 mini docking station connector, 2 
USB ports, 1 speaker/headphone-out jack, 1 audio line-in jack, 1 microphone-in 
jack, 1 fingerprint...

30Chapter 1
3BC-3BE Paraller port 1
3B0-3BB
3C0-3DFVideo Controller 
3F0h-3F7 Standard Floppy Disk Controller
3E8-3EF COM3 or LT Win modem (optional)
3F0-3F7 Floppy disk controller
3F8-3FF COM1 
480-48F, 4D6  DMA controller-1
4D0-4D1
CF8-CFFPCI configuration register
IRQ Assignment Map
Interrupt ChannelFunction
IRQ0 System timer
IRQ1 Keyboard
IRQ2 Cascade
IRQ3 IR
IRQ4 COM1 (Serial port)
IRQ5 Reserved for R2 card
IRQ6 Floppy
IRQ7 LPT (Parallel port)
IRQ8 CMOS/RTC
IRQ9 SCI IRQ used by ACPI bus
IRQ10 Audio...

Chapter 231
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)....

32Chapter 2
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...