Acer Aspire 4720z Service Guide

Chapter 135
DVD-Dual Interface
ItemSpecification
Vendor & model name LITEON SOSW-833S
PIONEER DVR-K16RA
Performance Specification With CD Diskette With DVD Diskette
Transfer rate (KB/sec) Sustained:
Max 3.6Mbytes/secSustained:
Max 10.8Mbytes/sec
Buffer Memory 2MB
Interface Enhanced IDE(ATAPI) compatible
Applicable disc formatSupport disc formats
1. Reads data in each CD-ROM, CD-ROM XA, CD-1, Video CD, CD-Extra and 
CD-Text
2. Reads data in Photo CD (single and Multi-session)
3. Reads standard CD-DA
4....

36Chapter 1
 
  Express Card Slot
ItemSpecification
PCI controller RICOH R5C833
Supports card type 54mm and 34mm Express card
Number of slots One Express card
Access location Left side
Supports ZV (Zoomed Video) port No ZV support
Supports 32 bit CardBus  Yes
System Board Major Chips
Item Controller
Core logic Intel ICH8M
LAN Broadcom BCM5787M
USB 2.0 Integrated with ICH8M chipset
Super I/O controller N/A
MODEM Foxconn T60M951.00
Bluetooth Foxconn T60H928.01
Wireless 802.11 b/g, a/b/g, a/g/n Foxconn,...

Chapter 137
Package configuration 3S2P
Normal voltage 11.1V
Charge voltage16.8+-0.2v
LCD 14.1” inch
ItemSpecification
Vendor & model name AUO 
B141EW04-V4 
LF GLARELPL 
LP141WX1-
TLA1 GLAREAUO 
B141EW04-V3 
LF NONE-
GLARESAMSUNG 
WXGA 
LT N 1 4 1 W 3 -
L01-0 GLARE
Screen Diagonal (mm) 14.1 inches 14.1 inches 14.1 inches 14.1 inches
Active Area (mm) 303.4x189.6 303.4x189.6 303.4x189.6 303.4x189.6
Display resolution (pixels) 1280 x 800 
WXGA1280 x 800 
WXGA1280 x 800 
WXGA1280 x 800 
WXGA
Pixel Pitch...

38Chapter 1
AC Adapter
ItemSpecification
Input rating Inlet 3p, 19V/3.42A, 65W, w LED, w/o PFC, universal
Inlet 3p, 19V/4.74A, 90W, w LED, w PFC, universal
Maximum input AC current3.42A / 4.74A
Inrush current 220A@115VAC
220A@230VAC
Efficiency82% min. @115VAC input full load
System Power Management
ACPI modePower Management
Mech. Off (G3) All devices in the system are turned off completely.
Soft Off (G2/S5) OS initiated shutdown. All devices in the system are turned off 
completely.
Working (G0/S0)...

Chapter 239
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 during POST (when “Press  to enter Setup” message is prompted 
on the...

40Chapter 2
Navigating the BIOS Utility
There are seven menu options: Info., Main, System Devices, Security, Power, Boot, and Exit.
Follow these instructions:
TTo choose a menu, use the cursor left/right keys (zx).
TTo choose an option, use the cursor up/down keys (wy).
TTo change an option format, press por q.
TA plus sign (+) indicates the item has sub-items. Press e to expand this item.
TPress ^ while you are in any of the menu options to go to the Exit menu.
TIn any menu, you can load default...

Chapter 241
Information
NOTE: The system information is subject to different models.
ParameterDescription
CPU Type / CPU Speed This field shows the CPU type and speed of the system.
IDE1 Model Name This field shows the model name of HDD installed on primary IDE master.
IDE1 Serial Number This field displays the serial number of HDD installed on primary IDE master.
ATAPI Model Name This field displays the model number of the installed ATAPI drive.
System BIOS Version Displays system BIOS version.
VGA BIOS...

42Chapter 2
Main
The Main screen displays a summary of your computer hardware information, and also includes basic setup 
parameters. It allows the user to specify standard IBM PC AT system parameters.
NOTE:  The screen above is for your reference only. Actual values may differ.
Phoenix TrustedCore(tm) Setup Utility
               
 
  
Item Specific Help 
System Time: [19:03:49] 
System Date : [08/25/2007] 
  
 
 
Video Memory :[8MB]
 
   
 
Quiet Boot :
[Enabled]
 
 
Power On Display :
[Auto]...

Chapter 243
The table below describes the parameters in this screen. Settings in boldface are the default and suggested 
parameter settings.
NOTE: The sub-items under each device will not be shown if the device control is set to disable or auto. This is 
because the user is not allowed to control the settings in these cases.
ParameterDescriptionFormat/Option
System Time Sets the system time. The hours are displayed 
with 24-hour format.Format: HH:MM:SS 
(hour:minute:second) System Time
System Date Sets...

44Chapter 2
Security
The Security screen contains parameters that help safeguard and protect your computer from unauthorized 
use.
Phoenix TrustedCore(tm) Setup Utility
           
 
Item Specific Help 
Supervisor Password Is : Clear
 
User Password Is : Clear
Set Supervisor Password
Set User Password
  Password on boot :[Disabled]
 
  
 
Supervisor Password 
controls access to the 
setup utility.
 
 
F1  Help          Select Item          F5/F6 Change Values             F9 Setup Defaults 
Esc Exit...