Aspire 4720G/4720Z/4720/4320 Series Service Guide Service guide files and updates are available on the ACER/CSD web; for more information, please refer to http://csd.acer.com.
Revision History Please refer to the table below for the updates made on Aspire 4720G/4720Z/4720/4320 service guide.
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.
Conventions The following conventions are used in this manual: IV 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.
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).
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Chapter 1 System Specifications Features Below is a brief summary of the computer’s many features: Operating system T Genuine Windows® VistaTM Home Premium T Genuine Windows® VistaTM Home Basic T Genuine Windows® VistaTM Starter NOTE: Windows® VistaTM Capable PCs come with Windows® XP installed, and can be upgraded to Windows® VistaTM. For more information on Windows® VistaTM and how to upgrade, go to: Microsoft.com/windowsvista.
T MPEG-2/DVD hardware-assisted capability (acceleration/full decode) (for selected models) T WMV9 (VC-1) and H.
T Consumer infrared (CIR) port T External display (VGA) port T S-video/TV-out (NTSC/PAL) port T Headphones/speaker/line-out port with S/PDIF support T Microphone-in jack T Line-in jack T Ethernet (RJ-45) port T Modem (RJ-11) port T DC-in jack for AC adapter Environment T T Chapter 1 Temperature: t Operating: 5ºC to 35ºC t Non-operating: -20ºC to 65ºC Humidity (non-condensing): t Operating: 20%~80% t Non-operating: 20%~80% 3
System Block Diagram NESTOS SYSTEM BLOCK DIAGRAM Y5 14.318MHZ Clock Generator SLG8SP512T U26 Merom CPU 479 Pin uFCPGA CPU Thermal Sensor U21 U5 FSB 667/800 Mhz MXM Type II TV-OUT CN20 STD H9.9 TV-OUT LVDS VGA TFT LCD Panel 14.1" WXGA SATA HDD CN27 Bluetooth PATA ODD USB4 SATA0 USB 2.0 USB3,5 CN23 LPC USB2 Y3 32.
Board Layout Top View 2 1 3 4 14 13 5 10 11 12 7 6 8 9 1 CN1 LVDS Connector 8 U17 Audio Codec (ALC 268) 2 CN2 Switch Board Connector 9 CN9 Audio Board Connector 3 U2 BCM5787 10 CN7 Microphone Connector 4 U6 South Bridge (ICH8M) 11 CN5 Speaker Connector 5 U8 PCI Card Reader Controller (RICOH R5C833) 12 CN6 Bluetooth Connector 6 CN8 Express Card Socket 13 CN3 Keyboard Connector 7 U13 Winbond Keyboard Controller (WPC9769LDG) 14 CN4 Touchpad Connector Chap
Bottom View 1 22 23 21 20 2 19 3 15 16 18 4 5 6 17 7 8 11 14 13 9 12 6 10 1 CN10 VGA Connector 13 U26 Clock Generator 2 CN11 S-Video Connector 14 CN26 Optical Disk Drive Connector 3 CN13 Ethernet Controller (BCM5787) 15 CN18 DIMM Socket 4 U20 LAN Transform 16 CN19 DIMM Socket 5 CN16 RJ45/RJ11 Jack 17 U22 North Bridge (965PM/GM) 6 CN17 Modem Cable Connector 18 CN20 MXM Connector (for selected models only) 7 CN21 USB Connector 19 U21 CPU Socket 8 CN22
Your Acer Notebook tour After knowing your computer features, let us show you around your new Aspire computer. Front View # Chapter 1 Icon Item Description 1 Built-in camera 0.3 megapixel web camera for video communication. 2 Status indicators Light-Emitting Diodes (LEDs) that light up to show the status of the computer’s functions and components. 3 Speaker Left and right speakers deliver stereo audio output.
4 Wireless communication button/indicator Enables/disables the wireless function. Indicates the status of wireless LAN communication. 5 Keyboard For entering data into your computer. 6 Touchpad Touch-sensitive pointing device which functions like a computer mouse. 7 4-way scroll button To scroll up, down, left, and right. 8 Click buttons (left and right) The left and right buttons function like the left and right mouse buttons. 9 Microphone Internal microphone for sound recording.
6 Headphones/speaker/ line-out jack with S/PDIF support Connects to audio line-out devices (e.g., speakers, headphones). 7 Volume control Increases and decreases the volume. Left View # Icon Item Description 1 External display (VGA) port Connects to a display device (e.g., external monitor, LCD projector). 2 S-video/TV-out (NTSC/ PAL) port Connects to a television or display device with S-video input. 3 4-pin IEEE 1394 port Connects to IEEE 1394 devices.
Right View # Icon Item Description 1 Optical drive Internal optical drive; accepts CDs or DVDs (slot-load or tray-load depending on model). 2 Optical disk access indicator Lights up when the optical drive is active. 3 Optical drive eject button Ejects the optical disk from the drive. 4 Emergency eject hole Ejects the optical drive tray when the computer is turned off. 5 2 USB 2.0 ports Connect to USB 2.0 devices (e.g., USB mouse, USB camera). 6 DC-in jack Connects to an AC adapter.
Base view # Item Description 1 Battery bay Houses the computer’s battery pack. 2 Battery lock Locks the battery in position. 3 Battery release latch Releases the battery for removal. 4 Ventilation slots and cooling fan Enable the computer to stay cool, even after prolonged use. Back panel Houses the computer’s hard disk and main memory. 5 Note: Do not cover or obstruct the opening of the fan. Indicators The computer has several easy-to-read status indicators.
Icon Function Icon Description Function Description 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 Power Lights up when the computer is on. Battery Lights up when the battery is being charged. Bluetooth Indicates the status of Bluetooth communication. Wireless LAN Indicates the status of wireless LAN communication. NOTE: 1. Charging: The light shows amber when the battery is charging. 2.
Launch key Default application Acer Empowering Technology (user-programmable) Web browser Internet browser (user-programmable) Mail Email application (user-programmable) Arcade Acer Arcade utility Touchpad Basics The following teaches you how to use the touchpad: T Move your finger across the touchpad (2) to move the cursor. T Press the left (1) and right (4) buttons located beneath the touchpad to perform selection and execution functions.
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.
Windows Keys The keyboard has one key that performs Windows-specific functions. Key Windows key Icon Description Pressed alone, this key has the same effect as clicking on the Windows Start button; it launches the Start menu. It can also be used with other keys to provide a variety of function: + Displays the desktop. + Opens the Windows Explore. + Opens the Search: All Files dialog box. + Cycles through Sidebar gadgets.
Hot Keys The computer employs hotkeys or key combinations to access most of the computer’s controls like screen brightness, volume output, and the BIOS utility. To activate hot keys, press and hold the key before pressing the other key in the hotkey combination. Hot Key Function Description Hot key help Displays help on hot keys. + Acer eSettings Launches the Acer eSettings in Acer eManager.
Hot Key + + Icon Function Description Previous Returns to previous media file. Next Jumps to next media file. Special Key You can locate the Euro symbol and US dollar sign at the upper-center and/or bottom-right of your keyboard. To type: The Euro symbol 1. Open a text editor or word processor. 2. Either directly press the < > symbol at the bottom-right of the keyboard, or hold and then press the<5> symbol at the upper-center of the keyboard.
Acer Empowering Technology Acer’s innovative Empowering Technology makes it easy for you to access frequently used functions and manage your new Acer notebook. It features the following handy utilities: T T T T T T T T Acer eNet Management hooks up to location-based networks intelligently. Acer ePower Management extends battery power via versatile usage profiles. Acer eAudio Management allows you to easily control the enhanced sound effects of Dolby® Home Theater™ on your system.
Acer eNet Management Acer eNet Management helps you to quickly and easily connect to both wired and wireless networks in a variety of locations. To access this utility, either click on the “Acer eNet Management” icon on your notebook, or start the program from the Start menu. You also have the option to set Acer eNet Management to start automatically when you boot up your PC.
Acer ePower Management Acer ePower Management features a straightforward user interface. To launch it, select Acer ePower Management from the Empowering Technology interface. AC Mode (Adapter mode) The default setting is “Maximum Performance.” You can adjust CPU speed, LCD brightness and other settings, or click on buttons to turn the following functions on/off: Wireless LAN, Bluetooth, CardBus, FireWire (1394), Wired LAN and Optical Device if supported.
Battery status For real-time battery life estimates based on current usage, refer to the time shown in the “Remaining Battery Life” field. For additional power options, click “More Power option”.
Acer eAudio Management Acer eAudio Management allows you to easily control the enhanced sound effects of Dolby® Home Theater™ on your system. Select "Movie" or "Game" mode to experience the awesome realism of 5.1-channel surround sound from just 2 speakers, via Dolby Virtual Speaker technology. "Music" mode lets you enjoy your favorite tunes, in vivid detail.
Acer ePresentation Management Acer ePresentation Management lets you project your computer’s display to an external device or project using the hot key: Fn + F5. If auto-detection hardware is implemented in the system, your system display will be automatically switched out when an external display is connected to the system. Acer eDataSecurity Management Acer eDataSecurity Management is handy file encryption utility that protects your files from being accessed by unauthorized persons.
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Acer eLock Management Acer eLock Management is a security utility that allows you to lock your removable data, optical and floppy drives to ensure that data cannot be stolen while your notebook is unattended. T T T T Removable data devices - includes USB disk drives, USB pen drives, USB flash drives, USB MP3 drives, USB memory card readers, IEEE 1394 disk drives and any other removable disk drives that can be mounted as a file system when plugged into the system.
Acer eRecovery Management Acer eRecovery Management is a powerful utility that does away with the need for recovery disks provided by the manufacturer. The Acer eRecovery Management utility occupies space in a hidden partition on your system’s HDD. User-created backups are stored on D:\ drive. Acer eRecovery Management provides you with: T T T Password protection. Recovery of applications and drivers. Image/data backup: T T Back up to HDD (set recovery point). T Back up to CD/DVD.
Acer eSettings Management Acer eSettings Management allows you to inspect hardware specifications and to monitor the system health status. Furthermore, Acer eSettings Management enables you to optimize your Windows operating system, so your computer runs faster, smoother and better. Acer eSettings Management also: T T Provides a simple graphical user interface for navigating. Displays general system status and advanced monitoring for power users.
Getting to know your Acer Cystal Eye webcam 3 1 No. 1 2 3 Item Lens 2 Power indicator 3 Rubber grip (selected models only) Launching the Acer Crytal Eye webcam To launch the Acer Crystal Eye webcam, double click on the Acer Crystal Eye webcam icon on the screen. OR Click Start > All programs > Crystal Eye webcam > Acer Crystal Eye webcam. The Acer Crystal Eye webcam capture window appears.
Note: Using the System Utilities NOTE: The system utilities work under Microsoft Windows XP only. Acer GridVista (dual-display compatible) NOTE: This feature is only available on certain models. To enable the dual monitor feature of the notebook, first ensure that the second monitor is connected, then open the Display Settings properties box using the Control or by Panel right-clicking the Windows desktop StartPanel Control Display Note: and selecting Personalize.
NOTE: Please ensure that the resolution setting of the second monitor is set to the manufacturer's recommended value.Note: Launch Manager Launch Manager allows you to set the four easy-launch buttons (see their locations mentioned in “EasyLaunch Buttons”). You can access the Launch Manager by clicking Start > All Programs > Launch Manager "Easy-launch buttons" on page 24 > Launch Manager to start the application.
Hardware Specifications and Configurations Processor Item Specification CPU type ® CoreTM2 Duo mobile processor T7300/T7500/T7700 (4MB, L2 cache Intel 2.0/2.2/2.4 GHz, 800 MHz FSB) Intel® CoreTM2 Duo processor T7100 (2MB, L2 cache 1.8 GHz, 667 MHz FSB) Intel® CoreTM2 Duo processor T5250/T5450 (2MB, L2 cache 1.5/1.66 GHz, 667 MHz FSB) Core logic Intel® 965PM/965GM Express chipset + ICH8M CPU package Intel 478-pin Micro FCBGA socket CPU core voltage 0.9~1.
System Memory Item Specification Memory controller Built-in Intel PM965 Memory size 0MB (no on-board memory) DIMM socket number 2 sockets Supports memory size per socket 2GB ® Supports maximum memory size 4GB (by two 1024MB SO-DIMM module) Supports DIMM type DDR 2 Synchronous DRAM Supports DIMM Speed 533/667 MHz Supports DIMM voltage 1.
System VRAM and VBIOS Options eSetting System Memory VBIOS Option in BIOS/ CMOS 512Mb 128MB 256MB 512MB 1024MB 128MB 256MB 512MB 2048MB 128MB 256MB 512MB 4096MB 128MB 256MB 512MB VRAM size Dedicated 128MB Max. available 192MB Dedicated 256MB Max. available 320MB Dedicated 512MB Max. available 576MB Dedicated 128MB Max. available 383MB Dedicated 256MB Max. available 511MB Dedicated 512MB Max. available 767MB Dedicated 128MB Max. available 895MB Dedicated 256MB Max.
Bluetooth Interface Item Specification Chipset FOXCONN T60H928.01 Bluetooth miniUSB module Data throughput 723 bps (full speed data rate) Protocol Bluetooth 2.0+EDR Interface USB 1.1 Connector type USB Wireless Module 802.11b/g, 802.11a/b/g, 802.11a/g/n Item Specification Chipset Intel Data throughput 11~54 Mbps Protocol 802.11b/g, 802.11a/b/g, or 802.
DVD-Dual Interface Item Specification 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/sec Sustained: Max 10.8Mbytes/sec Buffer Memory 2MB Interface Enhanced IDE(ATAPI) compatible Applicable disc format Support 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.
Express Card Slot Item PCI controller Specification 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.
Battery Item Specification Package configuration 3S2P Normal voltage 11.1V Charge voltage 16.8+-0.2v LCD 14.1” inch Item Specification Vendor & model name AUO B141EW04-V4 LF GLARE LPL LP141WX1TLA1 GLARE AUO B141EW04-V3 LF NONEGLARE SAMSUNG WXGA LTN141W3L01-0 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.
AC Adapter Item Specification 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 current 3.42A / 4.74A Inrush current 220A@115VAC 220A@230VAC Efficiency 82% min. @115VAC input full load System Power Management ACPI mode 38 Power 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.
Chapter 2 System Utilities 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.
Navigating the BIOS Utility There are seven menu options: Info., Main, System Devices, Security, Power, Boot, and Exit. Follow these instructions: T To choose a menu, use the cursor left/right keys (zx). T To choose an option, use the cursor up/down keys (wy). T To change an option format, press por q. T A plus sign (+) indicates the item has sub-items. Press e to expand this item. T Press ^ while you are in any of the menu options to go to the Exit menu.
Information Phoenix TrustedCore(tm) Setup Utility Information Main Security Boot Exit CPU Type : CPU Speed : Intel (R) Pentium(R) Dual CPU T2310 @ 1.46GHz 1460 MHz IDE1 Model Name : IDE1 Serial Number : ATAPI Model Name : System BIOS Version: VGA BIOS Version: Serial Number: Asset Tag Number: Produce Name: Manufacturer Name: UUID: Hitachi HTS541616J9SA00 xxxxxxxxxxxxxxxxxxxxxx Optiarc DVD RW AD-7530A v1.
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. Phoenix TrustedCore(tm) Setup Utility Information Main Security Boot Exit Item Specific Help System Time: [19:03:49] System Date : [08/25/2007] System Memory : 640 KB selects field.
The table below describes the parameters in this screen. Settings in boldface are the default and suggested parameter settings. Parameter Description Format/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 the system date. Format MM/DD/YYYY (month/day/ year) System Date System Memory This field reports the memory size of the system.
Security The Security screen contains parameters that help safeguard and protect your computer from unauthorized use. Phoenix TrustedCore(tm) Setup Utility Information Main Security Boot Exit Item Specific Help 44 Supervisor Password Is : User Password Is : Hard Disk Password Status : Clear Clear Clear Set Supervisor Password Set User Password Set Hard Disk Password [Enter] [Enter] [Enter] Password on boot : [Disabled] Supervisor Password controls access to the setup utility.
The table below describes the parameters in this screen. Settings in boldface are the default and suggested parameter settings. Parameter Description Option Supervisor Password Is Shows the setting of the Supervisor password Clear or Set User Password Is Shows the setting of the user password. Clear or Set Hard Disk Password Status Shows the setting of the hard disk password. Clear or HDD Password Set Set Supervisor Password Press Enter to set the supervisor password.
5. When you are done, press u to save the changes and exit the BIOS Setup Utility. Removing a Password Follow these steps: 1. Use the w and y keys to highlight the Set Supervisor Password parameter and press the e key. The Set Supervisor Password box appears: Set Supervisor Password Enter Current Password [ ] Enter New Password [ ] Confirm New Password [ ] 2. Type the current password in the Enter Current Password field and press e. 3.
If the current password entered does not match the actual current password, the screen will show you the Setup Warning. Setup Warning Invalid Password. [Continue] If the new password and confirm new password strings do not match, the screen will display the following message. Setup Warning Password do not match. Re-enter password.
Boot This menu allows the user to decide the order of boot devices to load the operating system. Bootable devices includes the onboard hard disk drive, the CD-ROM in module bay, and any external USB device. Phoenix TrustedCore(tm) Setup Utility Information Main Security Boot Exit Item Specific Help Boot priority order: 1: IDE HDD: Hitachi HTS541616J9SA00-(S 2: IDE CD : Optiarc DVD RW AD-7530A-(P 3: PCI BEV : MBA v9.4.
Exit The Exit screen contains parameters that help safeguard and protect your computer from unauthorized use. Phoenix TrustedCore(tm) Setup Utility Information Main Security Boot Exit Item Specific Help Exit Saving Changes Exit System Setup and save your changes to CMOS.
BIOS Flash Utility The BIOS flash memory update is required for the following conditions: T New versions of system programs T New features or options T Restore a BIOS when it becomes corrupted. Use the Phlash utility to update the system BIOS flash ROM. NOTE: If you do not have a crisis recovery diskette at hand, then you should create a Crisis Recovery Diskette before you use the Phlash utility. NOTE: Do not install memory-related drivers (XMS, EMS, DPMI) when you use the Phlash.
Chapter 3 Machine Disassembly and Replacement This chapter contains step-by-step procedures on how to disassemble the notebook computer for maintenance and troubleshooting. To disassemble the computer, you need the following tools: T Wrist grounding strap and conductive mat for preventing electrostatic discharge T Small Philips screw driver T Philips screwdriver T Plastic flat head screw driver T Tweezers NOTE: The screws for the different components vary in size.
General Information Before You Begin Before proceeding with the disassembly procedure, make sure that you do the following: 52 1. Turn off the power to the system and all peripherals. 2. Unplug the AC adapter and all power and signal cables from the system. 3. Remove the battery pack.
Disassembly Procedure Flowchart The flowchart on the succeeding page gives you a graphic representation on the entire disassembly sequence and instructs you on the components that need to be removed during servicing. For example, if you want to remove the system board, you must first remove the keyboard, then disassemble the inside assembly frame in that order.
LCD Module B*4 LCD Bezel G*1 for 15" G*2 for 15.4" LCD Inverter B*2 LCD Assembly LCD Panel G*2 for 15.4" Wireless Antenna Set F*8 (4 on left; 4 on right) LCD Bracket Sets LCD Cable LCD Screw List Item A 54 Description Part Number SCREW M2.0*3.0-I-NI-NYLOK 86.A08V7.005 B SCREW M2.5*4.0-I(NI)(NYLOK) 86.D01V7.001 C SCREW M2.5*3.5-I(BNI)(NYLOK) 86.AHS07.001 D SCREW M1.6*3-I(NI)(NYLOK) 86.AHS07.002 E SCREW M2.5 *7L-BNI-NYLOK 86.A10V7.
Removing the Battery Pack 1. Unlock the battery lock as shown. 2. Slide the battery release latch then remove the battery.
Removing the HDD Module/ODD Module/Memory/Wireless LAN Card/ Keyboard and the LCD Module 1. Press and release the PC dummy card from the PC slot as shown. 2. To access the internal laptop components, you have to first remove the back panel. Turn over the laptop and remove the seven screws fastening the back panel. 3. Lift the back panel up as shown. Removing the HDD Module 56 4. Remove the two screws fastening the HDD module bracket. 5.
Removing the ODD Module 6. Remove the screw fastening the ODD module. 7. Use a flat screwdriver to gently push out the ODD module as shown. Removing the Memory 8. Pull out the snaps securing the memory in place. The memory will pop up. 9. Remove the memory from the DIMM socket (If the notebook has two memory modules, then repeat this step). Removing the Wireless LAN Card 10. Remove the two screws fastening the wireless LAN card panel. 11. Lift up the panel as shown. 12.
13. Remove the two screws fastening the wireless LAN card. 14. Take out the wireless LAN card from the main unit. Removing the Keyboard and LCD Module 58 1. Remove the eight screws fastening the keyboard and LCD module to the main unit. 2. Turn the notebook over and gently pry up and remove the switch board cover as shown. 3. Lift the keyboard up and towards you. 4. Disconnect the keyboard cable from the main board and remove the keyboard from the main unit.
5. Disconnect both ends of the switch board FFC cable. 6. Disconnect the LCD and microphone cables, and pull through the wireless LAN antennae from the underside of the main unit. 7. Remove the six screws securing the hinges. 8. Detach the LCD module from the main unit.
Disassembling the Main Unit Separate the Main Unit Into the Upper and the Lower Case Assembly 1. Remove the ten screws fastening the lower case assembly to the upper case assembly. 2. Turn the notebook over and remove the three screws fastening the switch board. 3. Remove the switch board from the main unit. 4. Remove the ten screws fastening the upper case assembly to the lower case assembly. 5. Disconnect the touchpad, speaker and bluetooth cables. 6.
Removing the Audio Board 4. Remove the screw fastening the audio board. 5. Remove the audio board. Disassembling the Upper Case Assembly Removing the Bluetooth Module 1. Remove the two screws fastening the Bluetooth module. 2. Disconnect the Bluetooth cable to remove the Bluetooth module. Removing the Speakers 3. Remove the three screws fastening the speakers. 4. Remove the speakers.
Removing the Touchpad Cable 5. Disconnect the touchpad FFC cable from the touchpad module as shown. Disassembling the Main Board Removing the Power Board 1. Remove the two screws fastening the power board. 2. Remove the power board. Removing the Thermal Module and System Fan 62 3. Unscrew the six screws fastening the thermal module and system fan. 4. Disconnect the system fan cable and remove the thermal module and system fan as shown.
Removing the CPU 5. Use a flat screwdriver to release the CPU lock (Turn counter clockwise). 6. Remove the CPU from the CPU socket carefully. Removing the Modem Card 7. Remove the screw fastening the modem card. 8. Disconnect the modem cable and remove the modem card.
Disassembling the LCD Module 64 1. Remove the six screw rubbers as shown. 2. Then remove the six screws fastening the LCD bezel. 3. Detach the LCD bezel from the LCD module carefully. 4. Remove the four screws holding the LCD. 5. Detach the two inverter cable connectors from the inverter board. 6. Disconnect the CCD cable connector from the CCD module. 7. Take out the LCD from the LCD cover. 8. Remove the two screws fastening the left LCD bracket and detach it. 9.
10. Disconnect the LCD cable from the rear of the LCD. 11. Detach the microphone cable from the LCD cover and remove the microphone. 12. Remove the CCD module from the LCD cover as shown. Disassembling the External Modules Disassembling the HDD Module 1. Remove the two screws fastening the bracket to the HDD module. 2. Remove the bracket. Disassembling the ODD Module 1. Remove the two screws holding the optical bracket. 2. Then remove the optical bracket from the optical disk drive.
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Chapter 4 Troubleshooting Use the following procedure as a guide for computer problems. NOTE: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. 1. Obtain the failing symptoms in as much detail as possible. 2. Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating the same operation. 3.
System Check Procedures External Diskette Drive Check Do the following to isolate the problem to a controller, driver, or diskette. A write-enabled, diagnostic diskette is required. NOTE: Make sure that the diskette does not have more than one label attached to it. Multiple labels can cause damage to the drive or cause the drive to fail. Do the following to select the test device: 1. Boot from the diagnostics diskette and start the diagnostics program. 2.
If any of these devices do not work, reconnect the cable connector and repeat the failing operation. Memory check Memory errors might stop system operations, show error messages on the screen, or hang the system. 1. Boot from the diagnostics diskette and start the diagnostic program (please refer to main board). 2. Go to the diagnostic memory in the test items. 3. Press F2 in the test items. 4. Follow the instructions in the message window.
Check the Power Adapter Unplug the power adapter cable from the computer and measure the output voltage at the plug of the power adapter cable. See the following figure: Pin 1: +19 to +20.5V Pin 2: 0V, Ground 1. If the voltage is not correct, replace the power adapter. 2. If the voltage is within the range, do the following: T Replace the System board. T If the problem is not corrected, see “Undetermined Problems” on page 84. If the voltage is not correct, go to the next step.
Check the Battery Pack To check the battery pack, do the following: From Software: 1. Check out the Power Management in Control Panel 2. In Power Meter, confirm that if the parameters shown in the screen for Current Power Source and Total Battery Power Remaining are correct. 3. Repeat the steps 1 and 2, for both battery and adapter. 4. This helps you identify first the problem is on recharging or discharging. From Hardware: 1. Power off the computer. 2.
Power-On Self-Test (POST) Error Message The POST error message index lists the error message and their possible causes. The most likely cause is listed first. NOTE: Perform the FRU replacement or actions in the sequence shown in FRU/Action column, if the FRU replacement does not solve the problem, put the original part back in the computer. Do not replace a non-defective FRU. This index can also help you determine the next possible FRU to be replaced when servicing a computer.
Index of Error Messages Error Code List Error Codes 006 Error Messages Equipment Configuration Error Causes: 1. CPU BIOS Update Code Mismatch 2. IDE Primary Channel Master Drive Error (THe causes will be shown before “Equipment Configuration Error”) 010 Memory Error at xxxx:xxxx:xxxxh (R:xxxxh, W:xxxxh) 070 Real Time Clock Error 071 CMOS Battery Bad 072 CMOS Checksum Error 110 System disabled. Incorrect password is specified.
Error Message List Error Messages Real time clock error FRU/Action in Sequence RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. System board Previous boot incomplete - Default configuration used Run “Load Default Settings” in BIOS Setup Utility. RTC battery System board Memory size found by POST differed from CMOS Run “Load Default Settings” in BIOS Setup Utility.
Error Message List No beep Error Messages No beep, power-on indicator turns off and LCD is blank. FRU/Action in Sequence Power source (battery pack and power adapter). See “Power System Check” on page 69.. Ensure every connector is connected tightly and correctly. Reconnect the DIMM. LED board. System board. No beep, power-on indicator turns on and LCD is blank. Power source (battery pack and power adapter). See “Power System Check” on page 69..
Phoenix BIOS Beep Codes Code Beeps 02h Verify Real Mode 03h Disable Non-Maskable Interrupt (NMI) 04h Get CPU type 06h Initialize system hardware 08h Initialize chipset with initial POST values 09h Set IN POST flag 0Ah Initialize CPU registers 0Bh Enable CPU cache 0Ch Initialize caches to initial POST values 0Eh Initialize I/O component 0Fh Initialize the local bus IDE 10h Initialize Power Management 11h Load alternate registers with initial POST values 12h Restore CPU control wo
Code 46h Beeps 2-1-2-3 48h POST Routine Description Check ROM copyright notice Check video configuration against CMOS 49h Initialize PCI bus and devices 4Ah Initialize all video adapters in system 4Bh QuietBoot start (optional) 4Ch Shadow video BIOS ROM 4Eh Display BIOS copyright notice 50h Display CPU type and speed 51h Initialize EISA board 52h Test keyboard 54h 58h Set key click if enabled 2-2-3-1 Test for unexpected interrupts 59h Initialize POST display service 5Ah Display pro
Code Beeps 8Ch Initialize floppy controller 8Fh Determine number of ATA drives (optional) 90h Initialize hard-disk controllers 91h Initialize local-bus hard-disk controllers 92h Jump to UserPatch2 93h Build MPTABLE for multi-processor boards 95h Install CD ROM for boot 96h Clear huge ES segment register 97h 98h Fixup Multi Processor table 1-2 Search for option ROMs. One long, two short beeps on checksum failure.
Code Beeps D2h POST Routine Description Unknown interrupt Code Beeps E0h Initialize the chipset E1h Initialize the bridge E2h Initialize the CPU E3h Initialize the system timer E4h Initialize system I/O E5h Check force recovery boot E6h Checksum BIOS ROM E7h Go to BIOS E8h Set Huge Segment E9h Initialize Multi Processor EAh Initialize OEM special code EBh Initialize PIC and DMA ECh Initialize Memory type EDh Initialize Memory size EEh Shadow Boot Block EFh System memory
Index of Symptom-to-FRU Error Message LCD-Related Symptoms Symptom / Error LCD backlight doesn't work Action in Sequence LCD is too dark Enter BIOS Utility to execute “Load Setup Default Settings”, then reboot system. LCD brightness cannot be adjusted Reconnect the LCD connectors. LCD contrast cannot be adjusted Keyboard (if contrast and brightness function key doesn't work).
Power-Related Symptoms Symptom / Error Battery can’t be charged Action in Sequence See “Check the Battery Pack” on page 71. Battery pack System board PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card (PCMCIA) Action in Sequence PCMCIA slot assembly System board PCMCIA slot pin is damaged. PCMCIA slot assembly Memory-Related Symptoms Symptom / Error Memory count (size) appears different from actual size.
Power Management-Related Symptoms Symptom / Error Battery fuel gauge in Windows doesn’t go higher than 90%. Action in Sequence Remove battery pack and let it cool for 2 hours. Refresh battery (continue use battery until power off, then charge battery). Battery pack System board System hangs intermittently. Reconnect hard disk/CD-ROM drives. Hard disk connection board System board Peripheral-Related Symptoms Symptom / Error Action in Sequence System configuration does not match the installed devices.
Intermittent Problems Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a recurring problem exists. When analyzing an intermittent problem, do the following: 1. Run the advanced diagnostic test for the system board in loop mode at least 10 times. 2. If no error is detected, do not replace any FRU. 3.
Undetermined Problems The diagnostic problems does not identify which adapter or device failed, which installed devices are incorrect, whether a short circuit is suspected, or whether the system is inoperative. Follow these procedures to isolate the failing FRU (do not isolate non-defective FRU). NOTE: Verify that all attached devices are supported by the computer. NOTE: Verify that the power supply being used at the time of the failure is operating correctly. (See “Power System Check” on page 69.): 84 1.
Chapter 5 Jumper and Connector Locations Top View 2 1 3 4 14 13 5 10 11 12 7 6 8 9 1 CN1 LVDS Connector 8 U17 Audio Codec (ALC 268) 2 CN2 Switch Board Connector 9 CN9 Audio Board Connector 3 U2 BCM5787 10 CN7 Microphone Connector 4 U6 South Bridge (ICH8M) 11 CN5 Speaker Connector 5 U8 PCI Card Reader Controller (RICOH R5C833) 12 CN6 Bluetooth Connector 6 CN8 Express Card Socket 13 CN3 Keyboard Connector 7 U13 Winbond Keyboard Controller (WPC9769LDG) 14
Bottom View 1 22 23 21 20 2 19 3 15 16 18 4 5 6 17 7 8 11 14 13 9 12 1 86 10 CN10 VGA Connector 13 U26 Clock Generator 2 CN11 S-Video Connector 14 CN26 Optical Disk Drive Connector 3 CN13 Ethernet Controller (BCM5787) 15 CN18 DIMM Socket 4 U20 LAN Transform 16 CN19 DIMM Socket 5 CN16 RJ45/RJ11 Jack 17 U22 North Bridge (965PM/GM) 6 CN17 Modem Cable Connector 18 CN20 MXM Connector (for selected models only) 7 CN21 USB Connector 19 U21 CPU Socket 8 CN22
Chapter 6 FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of Aspire 4720G/4720Z/4720/4320 series. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). Please note that WHEN ORDERING FRU PARTS, you should check the most up-to-date information available on your regional web or channel.
Aspire 4720G/4720Z/4720/4320 Exploded Diagram Category No. Part Name and Description Acer Part No. ADAPTER ADAPTER 90W 3 PIN DELTA ADP90SB BBDHF ROHS AP.09001.008 ADAPTER 90W 3 PIN LITEON PA-1900- AP.09003.009 04QB ROHS ADAPTER 65W 3 PIN LITE-ON PA1650- AP.06503.013 02 QY LF ADAPTER 65W 3 PIN Delta SADP65KB DBRF LF AP.06501.010 Battery SANYO AS-2007A Li-Ion 3S2P SANYO 6 cell 4000mAh Main COMMON Y Cell BT.00603.036 Battery SONY AS-2007A Li-Ion 3S2P SONY 6 cell 4000mAh Main COMMON G4E Cell BT.
Category No. Part Name and Description Acer Part No. WIRELESS LAN BOARD 802.11BG INTEL 3945BG KI.GLN01.005 INTEL WIRELESS WIFI LINK 4965ANG MOW1 (MM#886224) KI.KDN01.001 INTEL WIRELESS WIFI LINK 4965ANG MOW2 (MM#886220) KI.KDN01.002 INTEL WIRELESS WIFI LINK 4965ANG ROW (MM#886434) KI.KDN01.003 INTEL WIRELESS WIFI LINK 4965ANG JP (MM#886437) KI.KDN01.004 POWER BOARD 65W 55.AK907.001 POWER BOARD 90W 55.AK907.002 AUDIO BOARD 55.AK907.003 SWITCH BOARD 55.AK907.
Category No. Part Name and Description Acer Part No. CASE/COVER/BRACKET ASSEMBLY MIDDLE COVER 42.AHS07.001 UPPER CASE ASSY W/SPEAKER BLUETOOTH CABLE TP FFC TP 60.AK907.001 LOWER CASE ASSY W/RUBBER 60.AHS07.002 BASE DOOR W/RUBBER 42.AHS07.002 MINI DOOR ASSY 42.AHS07.003 DUMMY EXPRESS CARD DUMMY 4 IN 1 CARD 42.TG607.005 CPU Intel Core2Dual T7100 PGA 1.8G 2M 800 SLA4A KC.71001.DTP CPU Intel Core2Dual T7300 PGA 2.0G 4M 800 SLA45 KC.73001.DTP CPU Intel Core2Dual T7500 PGA 2.
Category No. Part Name and Description Acer Part No. DVD-RW DRIVE DVD/RW SUPER MULTI MODULE 6M.AHS07.002 DVD SUPER MULTI TRAY IN HLDS GSA-T20N LF W/O BEZEL KU.0080D.027 DVD SUPER MULTI DRIVE PANASONIC UJ-850UAA1-A VISTA FW :1.60 KU.00807.051 DVD SUPER MULTI DRIVE SONY AD7530A VISTA TRAY IN KU.0080E.002 DVD SUPER MULTI TRAY IN PHILIPS DS-8A1P LF W/O BEZEL KU.00809.010 OPTICAL BRACKET 33.AHS07.002 DVD SUPER MULTI BEZEL 42.AGW07.003 80GB HGST 2.
Category No. Part Name and Description Acer Part No. HDD BRACKET ASSY 33.AHS07.003 KEYBOARD 14_15KB-FV2 88KS WHITE US INTERNATIONAL KB.INT00.036 KEYBOARD 14_15KB-FV2 88KS WHITE TRADITIONAL CHINESE KB.INT00.065 KEYBOARD 14_15KB-FV2 89KS WHITE GREEK KB.INT00.058 KEYBOARD 14_15KB-FV2 88KS WHITE THAILAND KB.INT00.040 KEYBOARD 14_15KB-FV2 89KS WHITE SLO/CRO KB.INT00.046 KEYBOARD 14_15KB-FV2 89KS WHITE CZECH KB.INT00.064 KEYBOARD 14_15KB-FV2 89KS WHITE HUNGARIAN KB.INT00.
Category No. Part Name and Description Acer Part No. KEYBOARD 14_15KB-FV2 89KS WHITE SWISS/G KB.INT00.041 KEYBOARD 14_15KB-FV2 89KS WHITE PORTUGUESE KB.INT00.048 KEYBOARD 14_15KB-FV2 88KS WHITE US INTERNATIONAL HEBREW KB.INT00.037 KEYBOARD 14_15KB-FV2 88KS WHITE KOREAN KB.INT00.052 KEYBOARD 14_15KB-FV2 89KS WHITE NORWEGIAN KB.INT00.050 LCD MODULE ASSY 14.1 IN WXGAG W/ANTENNA W/0.3M CCD 6M.AK907.001 LCD 14.1" WXGA AU B141EW04-V4 LF GLARE 200NITS 16MS LK.14105.018 INVERTER BOARD 19.AGW07.
Category 94 No. Part Name and Description Acer Part No. LCD BRACKET W/HINGE - R 33.AHS07.005 CCD MODULE 0.3M BISON 57.TG607.001 CCD MODULE 0.3M SUYIN 57.TG607.002 LCD MODULE ASSY 14.1 IN WXGA W/ ANTENNA W/0.3M CCD 6M.AK907.002 LCD 14.1 IN. WXGA LPL LP141WX1TLA1 16MS LK.14108.006 LCD 14.1" WXGA AU B141EW04-V3 LF NONE GLARE 200NITS 16MS LK.14105.019 LCD 14.1 IN. SAMSUNG WXGA LTN141W3-L01-0 16MS 200NITS LK.14106.010 INVERTER BOARD 19.AGW07.001 LCD CABLE FOR CCD 50.AHS07.
Category Chapter 6 No. Part Name and Description Acer Part No. CCD MODULE 0.3M BISON 57.TG607.001 CCD MODULE 0.3M SUYIN 57.TG607.002 LCD MODULE ASSY 14.1 IN WXGAG W/ANTENNA W/O CCD 6M.AKD07.001 LCD 14.1" WXGA AU B141EW04-V4 LF GLARE 200NITS 16MS LK.14105.018 INVERTER BOARD 19.AGW07.001 LCD CABLE W/O CCD 50.AJN07.001 LCD COVER ASSY W/MIC W/ ANTENNA 60.AHS07.003 LCD BEZEL ASSY W/O CCD 60.AJN07.001 LCD BRACKET W/HINGE - L 33.AHS07.004 LCD BRACKET W/HINGE - R 33.AHS07.
Category No. Part Name and Description Acer Part No. LCD BEZEL ASSY W/O CCD 60.AJN07.001 LCD BRACKET W/HINGE - L 33.AHS07.004 LCD BRACKET W/HINGE - R 33.AHS07.005 MAINBOARD 960GML UMA W/CARD READRE EXPRESS CARD W/O CPU MOMERY MB.AKD06.001 MAINBOARD 965GM UMA W/CARD READRE EXPRESS CARD W/O CPU MOMERY MB.AKD06.002 MAINBOARD 965PM DISCRETE W/ CARD READRE EXPRESS CARD W/O CPU MOMERY MB.AKD06.003 Memory HYNIX SO-DIMM DDRII 667 1GB HYMP512S64CP8-Y5 LF KN.1GB0G.
