Acer Aspire 4720Z Aspire 4720, G, Z, 4320 Service Guide
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- Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 1
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.tw PRINTED IN TAIWAN - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 2
Revision History Please refer to the table below for the updates made on Aspire 4720G/4720Z/4720/4320 service guide. Date Chapter Updates II - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 3
, 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 representations or warranties, either expressed or implied, with respect to the contents hereof and specifically - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 4
are used in this manual: SCREEN MESSAGES Denotes actual messages that appear on screen. NOTE WARNING CAUTION IMPORTANT Gives bits and pieces of additional information related to the current topic. Alerts you to any damage that might result from doing or not doing specific actions. Gives - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 5
card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered in this generic service guide. In such cases, please part number change is made, it will not be noted in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 6
VI - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 7
802.11b/g) Wi-Fi CERTIFIED® solution, supporting Acer SignalUpTM wireless technology T Core logic: Intel® 965PM/965GM + ICH8M (north bridge + south bridge). T Up to 2GB of DDR2 677 MHz memory, upgradeable to 4GB using two soDIMM modules (dualchannel support) Display and graphics T 14.1" WXGA TFT - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 8
ATA hard disk drives T Optical drive options: DVD/CDRW Combo and DVD-Super Multi double-layer drive support T 5-in-1 card reader, supporting Secure Digital (SD), MultiMediaCard (MMC), Memory Stick® (MS), Memory Stick PROTM (MS PRO), and xD-Picture CardTM (xD) Input devices T 88-/89-/93-key keyboard - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 9
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 Temperature: t Operating: 5ºC to 35ºC t Non-operating: -20ºC to 65ºC T Humidity (non - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 10
Generator SLG8SP512T U26 Merom CPU 479 Pin uFCPGA U21 FSB 667/800 Mhz CPU Thermal Sensor U5 TV-OUT TFT LCD Panel 14.1" WXGA CRT Bluetooth CN6 USB4 USB Port KBC PC8769L 1394 +Cardreader Controller Ricoh R5C832/R5C833 128 Pin TQFP BIOS U14 CIR U28 Touch Pad CN4 K/B CN3 FAN CN15 IEEE 1394 CN13 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 11
Controller (RICOH R5C833) Express Card Socket Winbond Keyboard Controller (WPC9769LDG) 8 U17 9 CN9 10 CN7 11 CN5 12 CN6 13 CN3 14 CN4 Audio Codec (ALC 268) Audio Board Connector Microphone Connector Speaker Connector Bluetooth Connector Keyboard Connector Touchpad Connector Chapter 1 5 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 12
Controller (BCM5787) 15 CN18 LAN Transform 16 CN19 RJ45/RJ11 Jack 17 U22 Modem Cable Connector 18 CN20 USB Connector USB Disk Drive Connector DIMM Socket DIMM Socket North Bridge (965PM/GM) MXM Connector (for selected models only) CPU Socket Mini Card Socket Power Board Connector Battery - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 13
Your Acer Notebook tour After knowing your computer features, let us show you around your new Aspire computer. Front View # 1 2 3 Chapter 1 Icon Item Built-in camera Status indicators Speaker Description 0.3 megapixel web camera for video communication. Light-Emitting Diodes (LEDs) that light - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 14
/indicator Indicates the status of wireless LAN communication. Keyboard Touchpad 4-way scroll button Click buttons (left and right) Microphone Display screen WWW/E-mail/Userprogrammable buttons Power button Description Empowering button Bluetooth® communication button/ indicator For entering - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 15
to audio line-out devices (e.g., line-out jack with S/PDIF speakers, headphones). support Volume control Increases and decreases the volume. -1 card reader Accepts Secure Digital (SD), MultiMediaCard (MMC), Memory Stick (MS), Memory Stick PRO (MS PRO), xD- Note: Picture Card (xD). Chapter 1 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 16
Optical drive eject button Emergency eject hole 2 USB 2.0 ports DC-in jack Description Internal optical drive; accepts CDs or DVDs (slot-load or tray-load depending on model). Lights up when the optical drive is active. Ejects the optical disk from the drive. Ejects the optical drive tray when the - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 17
release latch Releases the battery for removal. 4 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. 5 Back panel Houses the computer's hard disk and main memory. Indicators The computer has - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 18
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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 19
browser (user-programmable) Email application (user-programmable) Acer Arcade utility Touchpad Basics The following teaches you how (3) buton to mimic your cursor pressing on the right scroll bar of Windows applications. Function Execute Select Drag Access context menu Scroll Left Button (1) Click - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 20
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 be to connect an external keypad. When Scroll Lock is on, the screen moves one line up or down when you press the up or down arrow - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 21
keyboard has one key that performs Windows-specific functions. Key Windows key Application key Icon Description Pressed alone, this key has the same effect as clicking on the Windows a network domain) + Opens Help and Support. + Minimizes all windows. + Opens the Run dialog box. + - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 22
"Acer Empowering Technology" on page 18. Puts the computer in Sleep mode. + + + Display toggle Screen blank Touchpad toggle Switches display output between the display screen, external monitor (if connected) and both. Turns the display screen backlight off to save power - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 23
or word processor. 2. Either directly press the < > symbol at the bottom-right of the keyboard, or hold and then press the symbol at the upper-center of the keyboard. NOTE: Some fonts and software do not support the Euro symbol. Please refer to www.microsoft.com/ typography/faq/faq12.htm - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 24
frequently used functions and manage your new Acer notebook. It features the following handy utilities: T Acer eNet Management hooks up to location-based networks intelligently. T Acer ePower Management extends battery power via versatile usage profiles. T Acer eAudio Management allows you to easily - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 25
new location, while offering you the freedom to manually adjust the settings to match your needs. Acer eNet Management can save network settings for a and DNS settings, wireless AP details, etc.), as well as default printer settings. Security and safety concerns mean that Acer eNet Management does - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 26
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. DC Mode (Battery mode) There are three pre-defined profiles - Balanced, Power Saver, and - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 27
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". Chapter 1 21 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 28
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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 29
by unauthorized persons. It is conveniently integrated with Windows explorer as a shell extension for quick and easy data encryption/decryption and also supports on-the-fly file encryption for MSN Messenger and Microsoft Outlook. The Acer eDataSecurity Management setup wizard will prompt you for - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 30
24 Chapter 1 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 31
kind of CD-ROM or DVD-ROM drives. T Floppy disk drives - 3.5-inch disks only. T Interfaces - includes serial ports, parallel port, infrared (IR), and Bluetooth. To activate Acer eLock your notebook to an Acer Customer Service Center. Be sure to remember or write down your password. Chapter 1 25 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 32
. User-created backups are stored on D:\ drive. Acer eRecovery Management provides you with: T Password protection. T Recovery of applications and drivers. T Image/data backup: T Back up to HDD (set recovery point). T Back up to CD/DVD. T Image/data recovery tools: T Recover from a hidden partition - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 33
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 Provides a simple - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 34
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. Changing the Acer Crytal Eye webcam resolution To - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 35
Utilities NOTE: The system utilities work under Microsoft Windows XP only. Acer GridVista (dual-display compatible) NOTE: This feature is up: 1. Run Acer GridVista and select your preferred screen configuration for each display from the task bar. 2. Drag and drop each window into the appropriate - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 36
NOTE: Please ensure that the resolution setting of the second monitor is set to the manufacturer's recommended valueN. ote: Launch Manager Launch Manager allows you to set the four easy-launch buttons (see their locations mentioned in "Easy- Launch Buttons"). You > Launch Manager to - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 37
, INT 15 Extensions, PnP BIOS 1.0a, SMBIOS 2.3, Simple Boot Flag 1.0, Boot Block, PCI Bus Power Management Interface Specification, USB1.1/2.0, IEEE 1394 1.0, USB/1394 CD-ROM Boot Up support, PC Card 95 (PCMCIA 3.0 Compliant Device), Acer WMI, Acer LED, Acer VRAM, Acer MDA 2007 requirements, WfM - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 38
System Memory Item Memory controller Memory size DIMM socket number Supports memory size per socket Supports maximum memory size Supports DIMM type Supports DIMM Speed Supports DIMM voltage Supports DIMM package Memory module combinations Specification Built-in Intel® PM965 0MB (no on-board memory) - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 39
System VRAM and VBIOS Options System Memory 512Mb 1024MB 2048MB 4096MB VBIOS Option in BIOS/ CMOS 128MB 256MB 512MB 128MB 256MB 2303MB 4096MB LAN Interface Item Chipset Supports LAN protocol LAN connector type LAN connector location Features Specification BroadCom BCM5787M 10/100/1000 Ethernet - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 40
723 bps (full speed data rate) Bluetooth 2.0+EDR USB 1.1 USB Wireless Module 802.11b/g, 802.11a/b/g, 802.11a/g/n Item Chipset Data throughput Protocol Interface Specification Intel 11~54 Mbps 802.11b/g, 802.11a/b/g, or 802.11 a/g/n Mini PCI or Wi-Fi Hard Disk Drive Interface Item Vendor & Model - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 41
Chapter 1 Specification LITEON SOSW-833S PIONEER DVR-K16RA With CD Diskette With DVD Diskette Sustained: Max 3.6Mbytes/sec Sustained: Max 10.8Mbytes/sec 2MB Enhanced IDE(ATAPI) compatible Support disc formats 1. Reads data in each CD-ROM, CD-ROM XA, CD-1, Video CD, CD-Extra and CD-Text - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 42
Supports 32 bit CardBus System Board Major Chips Item Core logic LAN USB 2.0 Super I/O controller MODEM Bluetooth Wireless 802.11 b/g, a/b/g, a/g/n PCI controller Audio Keyboard Item Keyboard controller Total number of keypads Windows logo key Internal & external keyboard work simultaneously Battery - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 43
Battery Item Package configuration Normal voltage Charge voltage Specification 3S2P 11.1V 16.8+-0.2v LCD 14.1" inch Item Vendor & model name Screen Diagonal (mm) Active Area (mm) Display resolution (pixels) Pixel Pitch Pixel Arrangement Display Mode Typical White Luminance (cd/m2) also called - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 44
AC Adapter Item Input rating Maximum input AC current Inrush current Efficiency System Power Management ACPI mode Mech. Off (G3) Soft Off (G2/S5) Working (G0/S0) Suspend to RAM (S3) Save to Disk (S4) Specification Inlet 3p, 19V/3.42A, 65W, w LED, w/o PFC, universal Inlet 3p, 19V/4.74A, 90W, w LED, - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 45
, 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 bottom of screen). Press m to enter setup. The default parameter of F12 Boot Menu is set - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 46
made and exit the BIOS Setup Utility. NOTE: You can change the value of a parameter if it is enclosed in square brackets. Navigation keys for a particular menu are shown on the bottom of the screen. Help for parameters are found in the Item Specific Help part of the screen. Read this carefully when - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 47
Security Boot Exit CPU Type : CPU Speed : Intel (R) Pentium(R) Dual CPU T2310 @ 1.46GHz 1460 MHz IDE1 Model Name : Hitachi HTS541616J9SA00 IDE1 Serial Number : xxxxxxxxxxxxxxxxxxxxxx ATAPI Model Name : Optiarc DVD RW AD-7530A System BIOS Version: v1.3701 VGA BIOS Version: SantaRosa 1436 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 48
Main Phoenix TrustedCore(tm) Setup Utility Security Boot Exit System Time: System Date : System Memory : Extended Memory : Video Memory : Quiet Boot : Power On Display : Network Boot : F12 Boot Menu : D2D Recovery : Item Specific Help [19:03:49] [08/25/2007] , , or 640 KB - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 49
describes the parameters in this screen. Settings in boldface are the default and suggested parameter settings. Parameter System Time System Date System Memory Extended Memory Video Memory Quiet Boot Power On display Network Boot F12 Boot Menu D2D Recovery Description Format/Option Sets the - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 50
Boot Exit Supervisor Password Is : User Password Is : Hard Disk Password Status : Set Supervisor Password Set User Password Set Hard Disk Password Password on boot : Clear Clear Clear [Enter] [Enter] [Enter] [Disabled] Item Specific Help Supervisor Password controls access to the setup utility - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 51
setting of the hard disk password. Press Enter to set the supervisor password. When set, this password protects the BIOS Setup Utility from careful when typing your password because the characters do not appear on the screen. 3. Press e. After setting the password, the computer sets the Supervisor - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 52
you can enable the Password on boot parameter. 6. When you are done, press u to save the changes and exit the BIOS Setup Utility. If the verification is OK, the screen will display as following. Setup Notice Changes have been saved. [Continue] The password setting is complete after the user presses - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 53
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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 54
includes the onboard hard disk drive, the CD-ROM in module bay, and any external USB device. Information Main Phoenix TrustedCore(tm) Setup Utility 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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 55
Changes Save Changes Item Specific Help Exit System Setup and save your changes to CMOS. F1 Help Esc Exit Select Item Select Menu F5/F6 Change Values Enter Select Sub-Menu F9 Setup Defaults F10 Save and Exit The table below describes the parameters in this screen. Parameter Exit Saving - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 56
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. NOTE: Please use the AC adapter power supply when you run the Phlash utility. If the battery pack does not contain enough power to finish BIOS flash - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 57
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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 58
General Information Before You Begin Before proceeding with the disassembly procedure, make sure that you do the following: 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. 52 Chapter 3 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 59
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. Start Battery Pack B*1 D*1 System Fan B*4 Thermal Module F*1 ODD Module CPU D*5 F*1 Thermal Door Memory Lower Case - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 60
G*1 for 15" G*2 for 15.4" LCD Inverter B*2 LCD Panel G*2 for 15.4" Wireless Antenna Set LCD Assembly LCD Cable F*8 (4 on left; 4 on right) LCD SCREW M1.6*3-I(NI)(NYLOK) E SCREW M2.5 *7L-BNI-NYLOK LCD Part Number 86.A08V7.005 86.D01V7.001 86.AHS07.001 86.AHS07.002 86.A10V7.006 54 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 61
Removing the Battery Pack 1. Unlock the battery lock as shown. 2. Slide the battery release latch then remove the battery. Chapter 3 55 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 62
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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 63
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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 64
. Take out the wireless LAN card from the main unit. Removing the Keyboard and LCD Module 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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 65
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. Chapter 3 59 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 66
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. Gently lift off the upper case assembly from - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 67
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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 68
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 3. Unscrew the six screws fastening - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 69
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. Chapter 3 63 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 70
Disassembling the LCD Module 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. - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 71
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. Chapter 3 65 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 72
66 Chapter 3 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 73
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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 74
remains: 1. Reconnect the external diskette drive/DVD-ROM module. 2. Replace the external diskette drive/CD-ROM module. 3. Replace the main board. External CD-ROM Drive Check Do the following to isolate the problem to a controller, drive, or CD-ROM. Make sure that the CD-ROM does not have any label - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 75
of the following power sources: 1. Remove the battery pack. 2. Connect the power adapter and check that power is supplied. 3. Disconnect the power adapter and install the charged battery pack; then check that power is supplied by the battery pack. If you suspect a power problem, see the appropriate - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 76
NOTE: An audible noise from the power adapter does not always indicate a defect. 3. If the power-on indicator does not light up, check the power cord of the power adapter for correct continuity and installation. 4. If the operational charge does not work, see "Check the Battery Pack" on page 71. 70 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 77
indicator still does not light up, replace the battery pack. If the charge indicator still does not light up, replace the DC/DC charger board. Touchpad Check If the touchpad doesn't work, do the following actions one at a time to correct the problem. Do not replace a non-defective FRU: 1. Reconnect - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 78
column, if the FRU replacement does not solve the problem, put the original part back in the computer. Do not replace a non- servicing a computer. If the symptom is not listed, see "Undetermined Problems" on page 84. The following lists the error messages that the BIOS displays on the screen - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 79
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") Memory Error at xxxx:xxxx:xxxxh (R:xxxxh, W:xxxxh) Real Time Clock Error CMOS Battery Bad CMOS Checksum Error System - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 80
Setup Utility. RTC battery System board Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board DIMM BIOS ROM System board None BIOS ROM System board Run "Load Default Settings" in BIOS Setup Utility. RTC battery System board Enter Setup and see if fixed disk and drive A: are - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 81
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.. Reconnect the LCD connector Hard disk drive LCD inverter ID LCD cable LCD Inverter - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 82
the local bus IDE Initialize Power Management Load alternate registers with initial POST values Restore CPU control word during warm boot Initialize PCI Bus Mastering devices Initialize keyboard controller BIOS ROM checksum Initialize cache before memory autosize 8254 timer initialization 8237 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 83
Display BIOS copyright notice Display CPU type and speed Initialize EISA board Test keyboard Set key click if enabled Test for unexpected interrupts Initialize POST display service Display prompt "Press F2 to enter SETUP" Disable CPU cache Test RAM between 512 and 640 KB Test extended memory Test - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 84
hard-disk controllers Jump to UserPatch2 Build MPTABLE for multi-processor boards Install CD ROM for boot Clear huge ES segment register Fixup Multi Processor table Search for option ROMs. One long, two short beeps on checksum failure. Check for SMART drive (optional) Shadow option ROMs Set up Power - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 85
the bridge Initialize the CPU Initialize the system timer Initialize system I/O Check force recovery boot Checksum BIOS ROM Go to BIOS Set Huge Segment Initialize Multi Processor Initialize OEM special code Initialize PIC and DMA Initialize Memory type Initialize Memory size Shadow Boot Block - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 86
. Battery pack Power adapter Hard drive & battery connection board System board Power source (battery pack and power adapter). See "Power System Check" on page 69. Battery pack Power adapter Hard drive & battery connection board System board Power source (battery pack and power adapter). See "Power - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 87
board PCMCIA slot assembly Memory-Related Symptoms Symptom / Error Memory count (size) appears different from actual size. Action in Sequence Enter BIOS Setup Utility to execute "Load Default Settings, then reboot system. DIMM System board Speaker-Related Symptoms Symptom / Error In Windows - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 88
in Windows doesn't go higher than 90%. 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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 89
, 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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 90
all of the following devices: T Non-Acer devices T Printer, mouse, and other external devices T Battery pack T Hard disk drive T DIMM T CD-ROM/Diskette drive Module T PC Cards 4. Power-on the computer. 5. Determine if the problem has changed. 6. If the problem does not recur, reconnect the removed - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 91
Controller (RICOH R5C833) Express Card Socket Winbond Keyboard Controller (WPC9769LDG) 8 U17 9 CN9 10 CN7 11 CN5 12 CN6 13 CN3 14 CN4 Audio Codec (ALC 268) Audio Board Connector Microphone Connector Speaker Connector Bluetooth Connector Keyboard Connector Touchpad Connector Chapter 5 85 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 92
Controller (BCM5787) 15 CN18 LAN Transform 16 CN19 RJ45/RJ11 Jack 17 U22 Modem Cable Connector 18 CN20 USB Connector USB Disk Drive Connector DIMM Socket DIMM Socket North Bridge (965PM/GM) MXM Connector (for selected models only) CPU Socket Mini Card Socket Power Board Connector Battery - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 93
in global configurations of Aspire 4720G/4720Z/4720/4320 series. Refer to this chapter whenever ordering for parts to repair or for RMA part number change is made, it will not be noted on the printed Service Guide. For ACER AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 94
Aspire 4720G/4720Z/4720/4320 Exploded Diagram Category ADAPTER BATTERY BOARD No. Part Name and Description Acer Part No. 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 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 95
Category CABLE No. Part Name and Description Acer Part No. WIRELESS LAN BOARD 802.11BG INTEL 3945BG KI.GLN01.005 INTEL WIRELESS WIFI LINK 4965ANG KI.KDN01.001 MOW1 (MM#886224) INTEL WIRELESS WIFI LINK 4965ANG KI.KDN01.002 MOW2 (MM#886220) INTEL WIRELESS WIFI LINK 4965ANG KI.KDN01.003 ROW (MM - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 96
Name and Description MIDDLE COVER UPPER CASE ASSY W/SPEAKER BLUETOOTH CABLE TP FFC TP Acer Part No. 42.AHS07.001 60.AK907.001 LOWER CASE ASSY W/RUBBER 60.AHS07.002 CPU/PROCESSOR COMBO MODULE 90 BASE DOOR W/RUBBER 42.AHS07.002 MINI DOOR ASSY DUMMY EXPRESS CARD 42.AHS07.003 DUMMY 4 IN 1 CARD - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 97
RW DRIVE No. Part Name and Description DVD/RW SUPER MULTI MODULE Acer Part No. 6M.AHS07.002 HDD/HARD DISK DRIVE DVD SUPER MULTI TRAY IN HLDS GSA-T20N LF W/O BEZEL KU.0080D.027 DVD SUPER MULTI DRIVE KU.00807.051 PANASONIC UJ-850UAA1-A VISTA FW :1.60 DVD SUPER MULTI DRIVE SONY AD- KU.0080E - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 98
Category KEYBOARD 92 No. Part Name and Description HDD BRACKET ASSY Acer Part No. 33.AHS07.003 KEYBOARD 14_15KB-FV2 88KS WHITE US INTERNATIONAL KEYBOARD 14_15KB-FV2 88KS WHITE TRADITIONAL CHINESE KEYBOARD 14_15KB-FV2 89KS WHITE GREEK KEYBOARD 14_15KB-FV2 88KS WHITE THAILAND KEYBOARD 14_15KB-FV2 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 99
Category LCD 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 KB.INT00.037 WHITE US INTERNATIONAL HEBREW KEYBOARD 14_15KB-FV2 88KS WHITE KOREAN KB.INT00.052 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 100
and Description LCD BRACKET W/HINGE - R Acer Part No. 33.AHS07.005 CCD MODULE 0.3M BISON CCD MODULE NONE GLARE 200NITS 16MS LCD 14.1 IN. SAMSUNG WXGA LTN141W3-L01-0 16MS 200NITS LK.14106.010 INVERTER BOARD LCD CABLE FOR CCD 19.AGW07.001 50.AHS07.004 LCD COVER ASSY W/MIC W/ ANTENNA 60.AHS07 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 101
Description CCD MODULE 0.3M BISON CCD MODULE 0.3M SUYIN Acer Part No. 57.TG607.001 57.TG607.002 LCD MODULE ASSY 14.1 IN WXGAG 6M.AKD07.001 W/ANTENNA W/O CCD LCD 14.1" WXGA AU B141EW04-V4 LF LK.14105.018 GLARE 200NITS 16MS INVERTER BOARD LCD CABLE W/O CCD LCD COVER ASSY W/MIC W/ ANTENNA 19 - Acer Aspire 4720Z | Aspire 4720, G, Z, 4320 Service Guide - Page 102
Category MAINBOARD MEMORY HEATSINK MISCELLANEOUS SCERW No. Part Name and Description LCD BEZEL ASSY W/O CCD LCD BRACKET W/HINGE - L Acer Part No. 60.AJN07.001 33.AHS07.004 LCD BRACKET W/HINGE - R 33.AHS07.005 MAINBOARD 960GML UMA W/CARD READRE EXPRESS CARD W/O CPU MOMERY MAINBOARD 965GM UMA