Acer Aspire 7720Z Aspire 7720 / 7720G Service Guide
Acer Aspire 7720Z Manual
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- Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 1
Asprire Poyang 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 7720Z | Aspire 7720 / 7720G Service Guide - Page 2
Revision History Please refer to the table below for the updates made on Aspire Poyang service guide. Date Chapter Updates II - Acer Aspire 7720Z | Aspire 7720 / 7720G 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 7720Z | Aspire 7720 / 7720G 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 7720Z | Aspire 7720 / 7720G Service Guide - Page 5
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 -on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered in this generic service guide. In - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 6
VI - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 7
/965GM+ICH8M (north bridge+ south bridge) T Up to 2GB of DDR2 533/677 MHz memory, upgradeable to 4GB using two soDIMM modules (dual-channel support) Display and graphics T 17" WXGA+ high-brightness Acer CrystalBriteTM TFT LCD, 1680 x 1050 pixel resolution, 6 lamps T 16 ms typical of/off and 8 ms - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 8
double-layer drive (slot-load) T 5-in-1 card reader, supporting Secure Digital (SD), MultiMediaCard (MMC), Memory Stick® (MS), Memory Stick PROTM (MS PRO), xD-Picture CardTM (xD) Input devices T 88/89-key Acer FineTouchTM keyboard with 5-degree curve T Touchpad with 4-way scroll button T Four easy - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 9
Environment T Temperature: t Operating: 5ºC to 35ºC t Non-operating: -20ºC to 65ºC T Humidity (non-condensing): t Operating: 20%~80% t Non-operating: 20%~80% Chapter 1 3 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 10
System Block Diagram 4 Chapter 1 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 11
(ICH8M) 13 LED2 Battery Charge/Discharge LED 6 JP6 Internal Track-Pad Connector 14 JP13 Mainboard to Audio Board Connector 7 JP5 Internal Keyboard Connector 15 JP11 Mainboard to USB Board Connector 8 JP2 Mainboard to Button Board Connector 16 JP12 Bluetooth Module Connector Chapter - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 12
13 JP23 DC-in Power Jack Battery Connector CRT Connector DVI-D Connector ODD Connector Mini Card (WLAN) Socket Mini Card (TV-Tuner) Socket MDC Connector CPU Socket Internal Fan Connector VGA Board Connector RJ45 (LAN) Connector USB (Dual) Connectors 14 JP24 15 JP26 16 JP27 17 U23 18 U28 19 U29 20 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 13
Enables/disables the Bluetooth® function. Indicates the status of Bluetooth communication. Keyboard Touchpad Scroll button For entering data into your computer. Touch-sensitive pointing device which functions like a computer mouse. Press up, down, left and right to scroll around the screen. 7 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 14
displays computer output. Launches the Empowering Technology toolbar. Left and right speakers deliver stereo audio output. Comfortable support area for your hands when you use the computer. # Icon Item Description 1 Power indicator Indicates the computer's power status. 2 Battery indicator - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 15
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 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 16
Right View # 1 2 3 4 5 6 7 8 Rear view Icon Item 2 USB 2.0 ports AV-in port Description Connect to USB 2.0 devices (e.g., USB mouse, USB camera). Accepts input signals from audio/video (AV) devices. Optical drive Optical disk access indicator Optical drive eject button Emergency eject hole - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 17
's hard disk (secured with screws) Enable the computer to stay cool, even after prolonged use. Note: Do not cover or obstruct the opening of the fan. Indicators The computer has several easy-to-read status indicators. The front panel indicators are visible even when the computer cover is closed up - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 18
To the top of the keyboard there are four easy-launch buttons: Web browser, mail, arcade buttons and an Empowering Key " . Press " " to run the Acer Empowering Technology. The mail and Web browser buttons are pre-set to email and Internet programs, but can be reset by users. To set the Web browser - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 19
Mail Arcade Default application Acer Empowering Technology (user-programmable) Internet browser (user-programmable) Email application (user-programmable) Windows Media Center Touchpad Basics The following teaches you how to use the touchpad: T Move your finger across the touchpad (2) to move the - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 20
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 on, the screen moves one line up or down when you press the up or down arrow keys respectively. Scroll Lock does not work with some applications - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 21
Keys The 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 Start button; it launches the Start menu. It can also be used with other keys to provide a variety - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 22
Hot Key + + + Icon Function Display toggle Screen blank Touchpad toggle Description Switches display output between the display screen, external monitor (if connected) and both. Turns the display screen backlight off to save power. Press any key to return. Turns the - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 23
The US dollar sign 1. Open a text editor or word processor. 2. Either directly press the < > key at the bottom-right of the keyboard, or hold and then press the key at the upper-center of the keyboard. NOTE: This function varies by the operating system version. Chapter 1 17 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 24
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 ePresentation Management connects to a projector and adjusts display settings - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 25
Acer eNet Management can save network settings for a location to a profile, and automatically switch to the wireless AP details, etc.), as well as default printer settings. Security and safety concerns mean that Acer eNet Management does not store username and password information. Chapter 1 19 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 26
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. DC Mode (Battery mode) There are three pre-defined profiles - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 27
based on current usage, refer to the time shown in the "Remaining Battery Life" field. For additional power options, click "More Power option". Acer ePresentation Management Acer ePresentation Management lets you project your computer's display to an external device or project using the hot key: Fn - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 28
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 7720Z | Aspire 7720 / 7720G Service Guide - Page 29
Chapter 1 23 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 30
notebook is unattended. T Removable data devices - includes USB disk drives, USB pen drives, USB flash drives, USB MP3 drives, USB memory card (IR), and Bluetooth. To activate Acer eLock Management, a reset it except by reformatting your notebook or taking your notebook to an Acer Customer Service - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 31
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 Password protection. T Recovery of applications and drivers. T Image/data backup: T Back up to HDD (set recovery point). T Back - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 32
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 graphical user interface for navigating. T Displays general system status and - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 33
the Acer OrbiCam To launch the Acer OrbiCam, double click on the Acer OrbiCam icon on the screen. OR Click Start > All programs > Acer > Acer OrbiCam. The Acer OrbiCam capture window appears. Changing the Acer OrbiCam resolution To change the capture resolution, click the displayed resolution - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 34
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 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 35
NOTE: Please ensure that the resolution setting of the second monitor is set to the manufacturer's recommended value. 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 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 36
SpeedStep Technology Set by setup manual NOTE: If you need to check PXE version, press F2 to enter BIOS then enable boot from LAN function. After that, power off the system and remove the HDD. Last, reboot the laptop. Then you will see PXE version displaying on the screen. Second Level Cache Item - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 37
0MB 0MB 0MB 128MB 128MB 128MB 128MB 128MB 256MB 256MB 256MB 256MB 256MB 512MB 512MB 512MB 512MB 512MB 1024MB 1024MB 1024MB 1024MB 1024MB 1024MB Slot 1 Specification Built-in Intel® 965PM/965PM 0MB (no on-board memory) 2 sockets 2GB 4GB (by two 1024MB SO-DIMM module) DDR 2 Synchronous DRAM 667 MHz - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 38
LAN Interface Item Chipset Supports LAN protocol LAN connector type LAN connector location Features Specification Broadcom 5787 10/100/1000 Specification Specification Foxconn Bluetooth® 2.0+EDR 723 bps (full speed data rate) Bluetooth 1.1 (Upgradeable to Bluetooth 1.2 when SIG specification - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 39
: 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, DVD-RW and DVD+R/RW (Ver1.1) Load: Manual Release: (a) Electrical Release (Release Button) (b) Release by ATAPI command (c) Emergency Release - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 40
card type Number of slots Access location Supports ZV (Zoomed Video) port Supports 32 bit CardBus Specification Built-in ICH8M 2.0 USB 1.1 and USB 2.0 Host controller 4 One on the left side; three on the rear side Enable/Disable by BIOS Setup TI PCI 7412 Type-II One type-II Left side No ZV support - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 41
Windows logo key Internal & external keyboard work simultaneously Battery Item Vendor & model name Battery Type Pack capacity Number of battery cell Package configuration Normal voltage Charge voltage LCD 17" inch Item Vendor & model name Screen Diagonal (mm) Active Area (mm) Display resolution - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 42
LCD 17" inch Item Display Mode Typical White Luminance (cd/m2) also called Brightness Luminance Uniformity Contrast Ratio Response Time (Optical Rise Time/Fall Time)msec Nominal Input Voltage VDD Typical Power Consumption (watt) Weight Physical Size(mm) Electrical Interface Support Color Viewing - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 43
System Power Management ACPI mode Working (G0/S0) Suspend to RAM (S3) Save to Disk (S4) Power Management Individual devices such as the CPU and hard disc may be power managed in this state. CPU set power down VGA Suspend PCMCIA Suspend Audio Power Down Hard Disk Power Down CD-ROM Power Down Super - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 44
38 Chapter 1 - Acer Aspire 7720Z | Aspire 7720 / 7720G 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 7720Z | Aspire 7720 / 7720G 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 7720Z | Aspire 7720 / 7720G Service Guide - Page 47
Version VGA BIOS Version Serial Number Asset Tag Number Product Name Manufacturer Name UUID Number Description This field shows the CPU type and speed of the system. This field shows the model name of HDD installed on primary IDE master. This field displays the serial number of HDD installed on - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 48
screen displays a summary of your computer hardware information, and also includes basic setup parameters. It allows the user size Shows extended memory size [Enabled] [Enabled] [Disabled] [Enabled] [Disabled] Item Specific Help This is the help for the hour field. Valid range is from 0 to 23 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 49
Video memory size. Determines if Customer Logo will be displayed or not; shows Summary Screen is disabled or enabled. Enabled: Customer Logo is displayed, and Summary Screen is disabled. Disabled: Customer Logo is not displayed, and Summary Screen is enabled. Option: Enabled or Disabled Enables - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 50
Setup Utility Security Advanced Boot Exit Rev. 3.0 Supervisor Password Is User Password Is HDD Password Set Supervisor Password Set User Password Set HDD Password Password on Boot : Clear Clear Clear [Enabled] Item Specific Help Install or Change the password. F1 Help Esc Exit Select - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 51
password protects the BIOS Setup Utility from unauthorized access. The user can not either notebook computer to your dealer to reset it. Setting a Password Follow these steps as you set the supervisor, user because the characters do not appear on the screen. 3. Press e. After setting the password - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 52
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. The password setting is complete after the user presses u. If the current password entered does not match the actual current password, the - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 53
If the new password and confirm new password strings do not match, the screen will display the following message. Chapter 2 47 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 54
screen displays advanced settings in BIOS. Information Main InsydeH20 Setup Utility Security Advanced Boot Exit Rev. 3.0 Advanced CPU Control Platform Power Management IDE Configuration ACPI S1: ACPI S3: Auto wake on S5 [Enabled] [Enabled] [Disabled] Crestline PM Support POPUP Support - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 55
Boot This menu allows the user to decide the order of boot devices to load /HD TS-L802A 3: USB FDD : 4: Network Boot : MBA v9.4.5 Slot 0400 5: USB HDD : 6: USB KEY : 7: USB CDROM : Item Specific Help Use < > or < > to select a device, then press to move it up the list, or to move it down - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 56
Defaults Discard 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 The table below describes the parameters in this screen. Parameter Exit Saving Changes Exit Discarding - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 57
Restore a BIOS when it becomes corrupted. Use the Phlash utility to update the system BIOS flash ROM. 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 7720Z | Aspire 7720 / 7720G Service Guide - Page 58
52 Chapter 2 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 59
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 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 60
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. 54 Chapter 3 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 61
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. Start Battery - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 62
.5*6(NL) C SCREW M2.5*10(NL) D SCREW M2.5*15(NL) E SCREW M2*2.2 F SCREW M2*3(NL) G SCREW M2*4 H SCREW M3*4(NL) I SCREW D-SUB 4#X40* 1/5-NI (NL) LCD Part Number 86.TAVV5.001 86.TAVV5.002 86.TAVV5.003 86.TAVV5.004 86.TAVV5.005 86.TAVV5.006 86.TAVV5.007 86.TAVV5.008 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 63
Removing the Battery Pack 1. Unlock the battery lock (move the battery lock to the unlock position as shown). 2. Slide the battery release latch then remove the battery. Chapter 3 57 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 64
Removing the HDD Module/Memory/Wireless LAN Card/Modem Card/ TV Tuner Card/System Fan/Thermal Modules/VGA Board/CPU/ Keyboard and the LCD Module Removing the HDD Module 1. Remove the memory from the DIMM socket then remove it (If the notebook has two memory, then repeat this step). 58 Chapter 3 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 65
1. Disconnect the three antennae from the wireless LAN card. 2. Remove the two screws fastening the wireless LAN card. 3. Then take out the wireless LAN card from the main unit. 4. Remove the screw fastening the modem card and detach the modem card from the main board. 5. Disconnect the RJ-11 cable - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 66
from the main board. 2. Remove the three screws holding the system fan. 3. Remove the four spring screws holding the CPU thermal module. 4. Then detach the CPU thermal module as shown. 5. Remove the four spring screws holding the VGA thermal module. 6. Then detach the VGA thermal module as shown - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 67
and LCD Module 1. Turn the notebook over. 2. Remove the two screws from inside the battery compartment and the two screws fastening the LCD module. 3. Detach the strip cover from the front side and remove it. 4. Gently pull up the keyboard to release it from the four snaps as shown. 5. Turn - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 68
9. Detach the LCD module from the main unit. 62 Chapter 3 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 69
Into the Upper and the Lower Case Assembly 1. Remove the screw fastening the ODD from the bottom of the notebook. 2. Push the ODD module outwards and gently pull it out as shown. 3. Press and release the PC dummy card from the PC slot as shown. 4. Then press the release the memory dummy - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 70
7. Disconnect the touchpad FFC, speaker cables, button board FFC, and LED board FFC board. 4. Disconnect the Bluetooth cable from the main board. 5. Take out the Bluetooth module and its cable from the lower case as shown. 6. Then detach the Bluetooth cable from the Bluetooth module. 7. Pull the - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 71
fastening the audio board to the lower case. 14. Disconnect the audio board cable from the motherboard. 15. Disconnect the subwoofer cable from the audio board. 16. Remove the audio board from the lower case unit. 17. Remove the screw fastening the main board to the lower case. 18. Detach the main - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 72
20. Remove the three screws fastening the subwoofer to the lower case. 21. Remove the subwoofer from the lower case as shown. 66 Chapter 3 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 73
Disassembling the Upper Case Assembly 1. Turn the upper case over. 2. Remove the two screws fastening the button board. 3. Detach the button board with FFC from the upper case as shown. 4. Remove the two screws fastening the LED board. 5. Detach the LED board with FFC from the upper case as shown. - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 74
Disassembling the LCD Module 1. Remove the four screw rubbers as shown. 2. Then remove the four screws fastening the LCD bezel. 3. Detach the LCD bezel from the LCD module carefully. 4. Remove the two screws holding the LCD and the one screw holding the inverter board to the LCD panel. 5. Detach the - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 75
10. Remove the four screws fastening the left LCD bracket and detach it. 11. Remove the four screws fastening the right LCD bracket and detach it. 12. Disconnect the LCD cable from the rear side of the LCD. Chapter 3 69 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 76
Disassembling the External Modules Disassembling the HDD Module 1. Turn over the HDD module and remove the three screws fastening the HDD board. 2. Remove the HDD board. 3. Turn over the HDD module and remove the eight screws fastening the HDD bracket. 4. Remove the Disassembling the ODD Module 1. - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 77
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 7720Z | Aspire 7720 / 7720G Service Guide - Page 78
Follow the instructions in the message window. If an keyboard problem, do the following one at a time to correct the problem. Do not replace a non-defective FRU: 1. Reconnect the keyboard cables. 2. Replace the keyboard. 3. Replace the main board. The following auxiliary input devices are supported - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 79
the instructions in the message window. NOTE: Make sure that the DIMM is fully installed into the connector. A loose connection can cause an error. Power System Check To verify the symptom of the problem, power on the computer using each of the following power sources: 1. Remove the battery pack - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 80
is within the range, do the following: T Replace the System board. T If the problem is not corrected, see "Undetermined Problems" on page 88. T If the voltage is not correct, go to the next step. . 4. If the operational charge does not work, see "Check the Battery Pack" on page 75. 74 Chapter 4 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 81
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 7720Z | Aspire 7720 / 7720G Service Guide - Page 82
also help you determine the next possible FRU to be replaced when servicing a computer. If the symptom is not listed, see "Undetermined Problems" on page 88. The following lists the error messages that the BIOS displays on the screen and the error symptoms classified by function. NOTE: Most of the - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 83
Code List Error Codes 006 010 070 071 072 110 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") Memory Error at xxxx:xxxx - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 84
cache error - Cache disabled CPU ID: DMA Test Failed Software BIOS 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 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 85
Error Message List No beep Error Messages FRU/Action in Sequence No beep, power-on indicator turns off and LCD is blank. Power source (battery pack and power adapter). See "Power System Check" on page 73.. Ensure every connector is connected tightly and correctly. Reconnect the DIMM. LED board. - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 86
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 DMA controller - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 87
adapters in system QuietBoot start (optional) Shadow video BIOS ROM 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 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 88
MultiBoot menu Clear screen (optional) Check virus and backup reminders Try to boot with INT 19 Initialize POST Error Manager (PEM) Initialize error logging Initialize error display function Initialize system error handler PnPnd dual CMOS (optional) Initialize notebook docking (optional) Initialize - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 89
POST Routine Description Unknown interrupt Initialize the chipset Initialize 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 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 90
Abnormal screen Wrong color displayed LCD has extra horizontal or vertical lines displayed. Action in Sequence Enter BIOS Utility to execute "Load Setup Default Settings", then reboot system. Reconnect the LCD connectors. Keyboard (if contrast and brightness function key doesn't work). LCD - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 91
the Battery Pack" on page 75. Battery pack System board PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card ( page 45. Keyboard (if control is from the keyboard) Hard disk drive System board Press Fn+oand see if the computer enters hibernation mode. Touchpad Keyboard Hard disk - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 92
Configuration" of BIOS Setup Utility is set to Enabled. Device driver Device cable Device System board Keyboard/Touchpad-Related Symptoms Symptom / Error Keyboard (one or more keys) does not work. Touchpad does not work. Action in Sequence Reconnect the keyboard cable. Keyboard System board - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 93
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 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 94
Verify that all attached devices are supported by the computer. NOTE: Verify 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 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 95
(ICH8M) 13 LED2 Battery Charge/Discharge LED 6 JP6 Internal Track-Pad Connector 14 JP13 Mainboard to Audio Board Connector 7 JP5 Internal Keyboard Connector 15 JP11 Mainboard to USB Board Connector 8 JP2 Mainboard to Button Board Connector 16 JP12 Bluetooth Module Connector Chapter - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 96
13 JP23 DC-in Power Jack Battery Connector CRT Connector DVI-D Connector ODD Connector Mini Card (WLAN) Socket Mini Card (TV-Tuner) Socket MDC Connector CPU Socket Internal Fan Connector VGA Board Connector RJ45 (LAN) Connector USB (Dual) Connectors 14 JP24 15 JP26 16 JP27 17 U23 18 U28 19 U29 20 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 97
information available on your regional web or channel. For whatever reasons a 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 number code from those given in the FRU list of this printed - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 98
Aspire Poyang Exploded Diagram Category ADAPTER BATTERY BOARD No. Part Name and Description Acer Part No. ADAPTER 90W SP PA 4S2P 4.8AH 7 01K 0FA BATTERY LI-ION 8CELLS 4.8MAH SONY SY 4S2P 4.8AH 7 01K 0FA BT.00804.020 MODEM BOARD FX.22500.009 BLUETOOTH BOARD 54.AHE02.001 MINI WLAN/B INTEL - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 99
Category No. Part Name and Description Acer Part No. MINI WLAN/B INTEL 802.11 4965ANG KI.KDN01.003 ROW (MM#886434) MINI WLAN/B INTEL 802.11 4965ANG KI.KDN01.004 JP (MM#886437) BUTTON BOARD W/CABLE 17 55.AHJ02.001 AUDIO BOARD 17 LED BOARD W/CABLE 17 55.AHJ02.002 55.AHJ02.003 CABLE Chapter 6 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 100
and Description BLUE TOOTH CABLE 17 AUDIO CABLE 17 USB CABLE 17 RF CABLE 17 Acer Part No. 50.AHJ02.003 50.AHJ02.004 50.AHJ02.005 50.AHJ02.006 7 PIN MINI-DIN S-VIDEO TO 4 CABLE PAL TO NTSC CONNECTOR SMB JACK - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 101
Category No. Part Name and Description THERMAL DOOR 17 DIS Acer Part No. 42.AHK02.001 CPU/PROCESSOR COMBO MODULE INTEL CPU MEROM DUAL CORE T7700 2.4G LF80537GG0564M SLA43 E1 UFCPGA KC.77001.DTP INTEL CPU MEROM DUAL CORE T7500 2.2G LF80537GG0494M SLA44 E1 UFCPGA INTEL CPU MEROM DUAL CORE - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 102
DRIVE No. Part Name and Description Acer Part No. DVD SUPER MULTI DRIVE PHILIPS DS-8A1P 0FA KU.00809.010 DVD SUPER MULTI DRIVE HLDS GSA- KU.0080D.027 T20N 0FA DVD SUPER MULTI DRIVE SONY AD- KU.0080E.002 7530A 0FA ODD BEZEL-SUPER MULTI 42.AHE02.004 ODD BRACKET 17 HD-DVD - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 103
Name and Description HDD DOOR 17 Acer Part No. 42.AHJ02.007 HDD BRACKET 17 33.AHJ02.002 KEYBOARD Chapter 6 KEYBOARD 17KB-FV2 105KS WHITE KB.INT00.138 US INTERNATIONAL KEYBOARD 17KB-FV2 105KS WHITE ARABIC/ENGLISH KEYBOARD 17KB-FV2 106KS WHITE BELGIUM KEYBOARD 17KB-FV2 106KS WHITE BRAZILIAN - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 104
Acer Part No. KEYBOARD 17KB-FV2 106KS WHITE KB.INT00.143 SWISS/G KEYBOARD 17KB-FV2 105KS WHITE KB.INT00.142 THAILAND KEYBOARD 17KB-FV2 106KS WHITE KB.INT00.141 TURKISH KEYBOARD 17KB-FV2 106KS WHITE KB.INT00.140 UK KEYBOARD 17KB-FV2 105KS WHITE KB.INT00.139 US INTERNATIONAL HEBREW KEYBOARD 17 - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 105
LOGO W/MIC W/ 60.AHJ02.004 ANTENNA LCD BEZEL ASSY 17 FORW/O CCD MAINBOARB GM965 UMA W/CARD READER_EXPRESS CARD W/O CPU MEMORY MB.AHE02.001 MEMORY FAN HEATSINK MAINBOARB PM965 DISCRETE W/ MB.AHH02.001 CARD READER_EXPRESS CARD W/O CPU MEMORY MEMORY 512MB DDRII 667 NANYA NT512T64UH8B0FN-3C KN - Acer Aspire 7720Z | Aspire 7720 / 7720G Service Guide - Page 106
Acer Part No. 60.AHK02.003 SPEAKER R&L 17 SUB WOOFER 23.AHJ02.002 23.AHJ02.003 ACCESSORY MISCELLANEOUS SCREW LIST 100 ANTENNA R 17 ANTENNA L 17 MIC SET 17 004 SCREW,M M 2D 3.0L K 8.0D NI + 86.AHJ02.005 CPU THERMAL SCREW ASSY 86.AHJ02.006 SCREW,M M 2.0D 3L K 5D NI + 86.AHE02.008 Chapter 6