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                        Aspire 7520/7520G/7220/7220G
Service Guide
Service guide files and updates are available
on the AIPG/CSD web; for more information, 
please refer to http://csd.acer.com.tw
                                                                                                                                         PRINTED IN TAIWAN                                                                                                                                                                              
                    
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                        Revision History Please refer to the table below for the updates made on Aspire Poyang service guide. Date Chapter Updates II                                                                                                                                                                                                                                                                                                                                                                                       
                    
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                        Copyright Copyright © 2007 by Acer Incorporated.  All rights reserved.  No part of this publication may be reproduced,  transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in  any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without  the prior written permission of Acer Incorporated. Disclaimer The information in this guide is subject to change without notice. Acer Incorporated makes no r
                    
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                        Conventions The following conventions are used in this manual: SCREEN MESSAGES Denotes actual messages that appear  on screen. NOTE Gives bits and pieces of additional  information related to the current  topic. WARNING Alerts you to any damage that might  result from doing or not doing specific  actions. CAUTION Gives precautionary measures to  avoid possible hardware or software  problems. IMPORTANT Reminds you to do specific actions  relevant to the accomplishment of  procedures. IV          
                    
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                        Preface Before using this information and the product it supports, please read the following general information. 1. This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION  decided for Acer's "global" product offering. To better fit local market requirements and enhance product  competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g.  add-on card, modem, or extra memory capability). These LOCALIZED FEATURES
                    
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                        VI                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
                    
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                        Chapter  1 System Specifications Features Below is a brief summary of the computer’s many features: Operating system ® TM  Genuine Windows Vista Capable ® TM  Genuine Windows Vista Home Basic / Home Premium / Ultimate / Business Edition ®  Genuine Windows XP Home / Professional Edition (Service Pack 2) ®  Genuine Windows XP Media Center / Tablet Edition ®  Genuine Windows 2000 (Service Pack 4) ® ® TM NOTE: Windows Vista Capable PCs come with Windows XP installed, and can be upgraded to  ® TM ® T
                    
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                        ®  Dolby Digital Live and DTS Neo: PC support TM  Sound Blaster Pro and MS Sound compatible  Built-in microphone Storage subsystem  Two 80/100/120/160/200 GB Serial ATA hard disk drives, supporting software RAID 0/1  Optical drive options: DVD-Super Multi double-layer drive (slot-load) ®  5-in-1 card reader, supporting Secure Digital (SD), MultiMediaCard (MMC), Memory Stick (MS),  TM TM Memory Stick PRO (MS PRO), xD-Picture Card (xD) Input devices TM  88/89-key Acer FineTouch keyboard with 5-deg
                    
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                        Environment  Temperature:  Operating: 5ºC to 35ºC  Non-operating: -20ºC to 65ºC  Humidity (non-condensing):  Operating: 20%~80%  Non-operating: 20%~80% Chapter 1 3                                                                                                                                                                                                                                                                                                                                                 
                    
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                        System Block Diagram 4 Chapter 1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
                    
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                        Board Layout Top View 1 1 23 2 3 4 4 8 8 9 9 7 7 5 5 6 6 10 1 10 0 1 15 15 5 16 1 16 6 12 1 12 2 13 1 13 3 14 1 14 4 1 JP1 LCD Connector 9 JP36 Mainboard to LED Board  Connector 2 JP3 Speaker (Left) Connector 10 U12 3 JP34 Speaker (Right) Connector 11 JP9 PCI Express Card Socket 4 JP4 Internal MIC Connector 12 LED1 Power/Suspend LED 5 U5 South Bridge (ICH8M) 13 LED2 Battery Charge/Discharge LED 6 JP6 Internal Track-Pad Connector 14 JP13 Mainboard to Audio Board  Connector 7 JP5 Internal Keyboard
                    
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                        Bottom View 1 1 3 3 2 2 4 4 1 10 10 0 9 9 8 8 1 12 12 2 7 7 6 6 5 5 13 1 13 3 17 17 17 14 1 14 4 15 1 15 5 16 16 16 18 1 18 8 19 1 19 9 20 20 20 26 2 26 6 24 2 24 4 21 2 21 1 22 2 22 2 2 23 23 3 25 2 25 5 1 PJP1 DC-in Power Jack 14 JP24 TV-out Connector 2 PJP2 Battery Connector 15 JP26 IEEE1394 Connector 3 JP14 CRT Connector 16 JP27 SATA HDD Connector 4 JP15 DVI-D Connector 17 U23 North Bridge (965PM/965GM) 5 JP25 ODD Connector 18 U28 6 JP20 Mini Card (WLAN) Socket 19 U29 Volume Control 7 JP19 M
                    
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                        Your Acer Notebook Tour After knowing your computer features, let us show you around your new Aspire computer. Front View # Icon Item Description 1 Built-in camera 0.3 megapixel web camera for video  communication. 2 Power button Turns the computer on and off. 3 Wireless communication Enables/disables the wireless function.  button/indicator Indicates the status of wireless LAN  communication. 4 Easy-launch buttons Buttons for launching frequently used  programs. 5 ® ® Bluetooth Enables/disables
                    
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                        9 Status indicators Light-Emitting Diodes (LEDs) that light up  to show the status of the computer’s  functions and components. 10 Click buttons (left and The left and right buttons function like the  right) left and right mouse buttons. 11 Microphone Internal microphone for sound recording. 12 Display screen Also called Liquid-Crystal Display (LCD),  displays computer output. 13 Empowering button Launches the Empowering Technology  toolbar. 14 Speaker Left and right speakers deliver stereo audi
                    
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                        Left View # Icon Item Description 1 Kensington lock slot Connects to a Kensington-compatible  computer security lock. 2 External display (VGA) Connects to a display device (e.g., external  port monitor, LCD projector). 3 DVI DVI-D port Supports digital video connections. 4 Ethernet (RJ-45) Connects to an Ethernet 10/100/1000- based network (for selected models). 5 2 USB 2.0 port Connect to USB 2.0 devices (e.g., USB  mouse, USB camera). 6 S-video/TV-out (NTSC/ Connects to a television or display
                    
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                        Right View # Icon Item Description 1 2 USB 2.0 ports Connect to USB 2.0 devices (e.g., USB  mouse, USB camera). 2 AV-in port Accepts input signals from audio/video  (AV) devices. 3 Optical drive Internal optical drive; accepts CDs or DVDs  (slot-load or tray-load depending on  model). 4 Optical disk access Lights up when the optical drive is active. indicator 5 Optical drive eject Ejects the optical disk from the drive. button 6 Emergency eject hole Ejects the optical drive tray when the  comput
                    
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                        Base view # Item Description 1 Battery bay Houses the computer’s battery pack. 2 Battery release latch Releases the battery for removal. 3 Battery lock Locks the battery in position. 4 Hard disk bay Houses the computer’s hard disk (secured with screws) 5 & 6 Ventilation slots and Enable the computer to stay cool, even after prolonged use. cooling fan Note: Do not cover or obstruct the opening of the fan. Indicators The computer has several easy-to-read status indicators. The front panel indicato
                    
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                        Icon Function Description Power Lights up when the computer is on. Battery Lights up when the battery is being charged. Wireless LAN Indicates the status of wireless LAN communication. Bluetooth Indicates the status of Bluetooth communication. HDD Indicates when the hard disc or optical drive is active. Num lock Lights when Num Lock is activated. Cap lock Lights when Cap Lock is activated NOTE: 1. Charging: The light shows amber when the battery is charging. 2. Fully charged: The light shows  gr
                    
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                        Launch Button Default application Acer Empowering Technology (user-programmable) Web browser Internet browser (user-programmable) Mail Email application (user-programmable) Arcade Windows Media Center Touchpad Basics The following teaches you how to use the touchpad:  Move your finger across the touchpad (2) to move the cursor.   Press the left (1) and right (4) buttons located beneath the touchpad to perform selection and  execution functions. These two buttons are similar to the left and right
                    
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                        Using the Keyboard The keyboard has full-sized keys and an embedded keypad, separate cursor keys, one Windows key and  twelve function keys. Lock Keys and embedded numeric keypad The keyboard has three lock keys which you can toggle on and off. Lock Key Description Caps Lock When Caps Lock is on, all alphabetic characters typed  are in uppercase. Num lock   When Num Lock is on, the embedded keypad is in  + numeric mode. The keys function as a calculator  (complete with the arithmetic op