Acer Aspire 7520G Aspire 7520 / 7520G Service Guide
Acer Aspire 7520G Manual
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- Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 1
Aspire 7520/7520G/7220/7220G Service Guide Service guide files and updates are available on the AIPG/CSD web; for more information, please refer to http://csd.acer.com.tw PRINTED IN TAIWAN - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 3
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 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 4
Conventions The following conventions 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 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 5
(e.g. add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered in this generic service guide. In such 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 7520G | Aspire 7520 / 7520G Service Guide - Page 6
VI - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 7
® 965PM/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 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 8
hard disk drives, supporting software RAID 0/1 T Optical drive options: DVD-Super Multi 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 - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 10
System Block Diagram 4 Chapter 1 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 11
11 JP9 PCI Express Card Socket 4 JP4 Internal MIC Connector 12 LED1 Power/Suspend LED 5 U5 South Bridge (ICH8M) 13 LED2 Battery Charge/Discharge LED 6 JP6 Internal Track-Pad Connector 14 JP13 Mainboard to Audio Board Connector 7 JP5 Internal Keyboard Connector 15 JP11 Mainboard - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 12
JP18 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 - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 14
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 Indicates the computer's battery status. 3 Line-in jack Accepts audio line-in devices (e.g., audio CD - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 15
to a Kensington-compatible computer security lock. 2 External display (VGA) Connects to a display device (e.g., external port monitor, LCD projector). 3 DVI DVI-D port Supports digital video connections. 4 Ethernet (RJ-45) Connects to an Ethernet 10/100/1000- based network (for selected - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 16
(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 Modem (RJ-11) port Internal optical drive; accepts CDs or DVDs (slot-load or tray-load depending on model). Lights up - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 17
Base view # 1 2 3 4 5 & 6 Item Battery bay Battery release latch Battery lock Hard disk bay Ventilation slots and cooling fan Description Houses the computer's battery pack. Releases the battery for removal. Locks the battery in position. Houses the computer's hard disk (secured with screws) - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 18
Icon Function Power Battery Description Lights up when the computer is on. Lights up when the battery is being charged. Wireless LAN Bluetooth Indicates the status of wireless LAN communication. Indicates the status of Bluetooth communication. HDD Num lock Cap lock Indicates when the hard disc - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 19
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 finger on the touchpad on the second tap and - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 21
the minimize all windows This key has the same effect as clicking the right mouse button; it opens the application's context menu. 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 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 22
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 internal - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 24
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 ePresentation Management connects to a projector - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 26
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. DC Mode (Battery - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 27
-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 ePresentation Management Acer ePresentation Management lets you project your computer's display to an external device or - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 28
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 a supervisor password and default - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 29
Chapter 1 23 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 30
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. T Optical drive devices - includes any kind of CD-ROM or DVD-ROM drives. T Floppy disk - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 31
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 up to CD/DVD. T Image/data recovery tools: T Recover - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 32
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 advanced monitoring for power users. Getting to know your - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 33
Lens Power indicator Rubber grip (selected models only) Launching 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 - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 36
-pin PLCC ACPI 1.0b/2.0/3.0, PCI 2.2, System/HDD Password Security Control, INT 13h Extensions, PnP BIOS 1.0a, SMBIOS 2.4, 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 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 37
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 Memory Combinations 0MB 0MB 0MB 0MB 0MB 128MB 128MB 128MB - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 38
Bluetooth 1.1 (Upgradeable to Bluetooth 1.2 when SIG specification is ratified). USB 1.1 USB Wireless Module 802.11a/b/g/n Item Chipset Data throughput Protocol Interface Specification Intel 4965AGN/3945ABG/3945BG 11~54 Mbps 802.11a+b+g+Draft-n/802.11a+b+g/802.11b+g PCI Hard Disk Drive Interface - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 39
AD-7530A TOSHIBA HD-DVD Drive 12.7mm Tray TS-L802A 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 2. Reads data - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 40
DVD-Dual Interface Item Power Requirement Input Voltage Audio Interface Item Audio Controller Audio onboard or optional Mono or Stereo Resolution Compatibility Sampling rate Internal microphone Internal speaker / Quantity Supports PnP DMA channel Supports PnP IRQ 5 V +/- 5 % (Operating) - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 41
System Board Major Chips Item Bluetooth Wireless LAN PCMCIA Audio Keyboard Item Keyboard controller Total number of keypads Windows logo key Internal & external keyboard work simultaneously Battery Item Vendor & model name Battery Type Pack capacity Number of battery cell Package configuration - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 42
(2000V for kick off) 6.5 (max) 65K Hz (max) AC Adapter Item Input rating Maximum input AC current Inrush current Efficiency Specification 90V AC to 264V AC, 47Hz to 63Hz 1.7A 220A@115VAC 220A@230VAC 82% min. @115VAC input full load System Power Management ACPI mode Mech. Off (G3) Soft Off (G2/S5 - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 44
38 Chapter 1 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 45
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 to "disabled". If you want to change boot device without - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 46
the BIOS Utility There are six menu options: Info., Main, System Devices, Security, Boot, and Exit. Follow these instructions: T screen. Help for parameters are found in the Item Specific Help part of the screen. Read this carefully when making changes to parameter values. Please note that system - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 47
. The hard disk drive or optical drive model name is automatically detected by the system. This field displays the serial number of devices installed on secondary IDE master. The hard disk drive or optical drive model name is automatically detected by the system. Displays system BIOS version. This - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 48
Main Security Advanced Boot Exit Rev. 3.0 System Time: System Date : System Memory : Total Memory : Video Memory : Quiet Boot : Network Boot : F12 Boot Menu : D2D Recovery : Wake-up on LAN : [19:03:49] [04/25/2007] 640 KB 1023 MB [256MB] Shows system base memory size Shows extended - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 49
: Enabled or Disabled Enables, disables Boot Menu during POST. Option: Disabled or Enabled Enables, disables D2D Recovery function. The function allows the user to create a hidden partition on hard disc drive to store operation system and restore the system to factory defaults. Option: Enabled - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 50
The Security screen contains parameters that help safeguard and protect your computer from unauthorized use. Information Main InsydeH20 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 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 51
, you have three tries before the system halts. Don't forget your password. If you forget your password, you may have to return your notebook computer to your dealer to reset it. Setting a Password Follow these steps as you set the supervisor, user, or hard disk password: 1. Use the w and y keys to - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 52
After setting the password, the computer sets the Supervisor Password parameter to "Set". 5. If desired, 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 - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 55
to decide the order of boot devices to load the operating system. Bootable devices includes the diskette drive in module bay, the onboard hard disk drive, and the CD-ROM in module bay. Information Main InsydeH20 Setup Utility Security Advanced Boot Exit Rev. 3.0 Boot Priority Order: 1: IDE - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 56
protect your computer from unauthorized use. Information Main InsydeH20 Setup Utility Security Advanced Boot Exit Rev. 3.0 Exit Saving Changes Exit Discarding Changes Load Setup Defaults Discard Changes Save Changes Item Specific Help Exit System Setup and save your changes to CMOS. F1 Help - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 57
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. NOTE: Please use the AC adapter - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 58
52 Chapter 2 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 59
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 - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 61
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 Pack B*1 D*1 System Fan B*4 Thermal - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 64
/Memory/Wireless LAN Card/Modem Card/ TV Tuner Card/System Fan/Thermal Modules/VGA Board/CPU/ Keyboard Memory 1. Remove the four screws holding the thermal cover. 2. Detach the thermal cover from the main unit. 3. Pop out the memory from the DIMM socket then remove it (If the notebook has two memory - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 66
Fan/Thermal Modules/VGA Board and CPU 1. Disconnect the fan cable 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 - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 68
9. Detach the LCD module from the main unit. 62 Chapter 3 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 69
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 card from the 5-in-1 card reader slot as shown. 5. Remove the nine screws - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 71
case. 13. Remove the two screws 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 - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 76
the HDD bracket. 4. Remove the Disassembling the ODD Module 1. Remove the three screws holding the optical bracket. 2. Then remove the optical bracket from the optical disk drive. 70 Chapter 3 - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 78
instructions in the message window. If an error occurs, reconnect the connector on the System board. If the error still remains: 1. Reconnect the external diskette drive/CD-ROM module. 2. Replace the external diskette drive/CD-ROM module. 3. Replace the main board. Keyboard or Auxiliary Input Device - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 80
+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 88. T If the voltage is not correct, go to the next step - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 81
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. Remove the battery pack and - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 82
display information about a hardware device, e.g., the amount of memory installed. Others may indicate a problem with a device, such as the way it has been configured. NOTE: If the system fails after you make changes in the BIOS Setup Utility menus, reset the computer, enter Setup and install Setup - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 83
/Action in Sequence Failure Fixed Disk Reconnect hard disk drive connector. "Load Default Settings" in BIOS Setup Utility. Hard disk drive System board Stuck Key see "Keyboard or Auxiliary Input Device Check" on page 72. Keyboard error see "Keyboard or Auxiliary Input Device Check" on page 72 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 84
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 properly identified. Diskette drive Hard disk drive System board 78 Chapter - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 85
-on indicator turns on and LCD is blank. Power source (battery pack and power adapter). See "Power System Check" on page 73.. Reconnect the LCD connector Hard disk drive LCD inverter ID LCD cable LCD Inverter LCD System board No beep, power-on indicator turns on and LCD is blank. But you can see - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 86
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 initialization Reset - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 87
Check ROM copyright notice Check video configuration against CMOS Initialize PCI bus and devices Initialize all video 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 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 88
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 7520G | Aspire 7520 / 7520G Service Guide - Page 89
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 System memory test Initialize interrupt vectors Initialize Run Time Clock Initialize video - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 90
power adapter). See "Power System Check" on page 73. Battery pack Power adapter Hard drive & battery connection board System board Power source (battery pack and power adapter). See "Power System Check" on page 73. Battery pack Power adapter Hard drive & battery connection board System board Power - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 91
Hard disk drive System board Press Fn+oand see if the computer enters hibernation mode. Touchpad Keyboard Hard disk connection board Hard disk drive System board See "Save to Disk (S4)" on page 45. LCD cover switch System board See "Save to Disk (S4)" on page 45. Hard disk connection board Hard disk - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 92
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 7520G | Aspire 7520 / 7520G Service Guide - Page 93
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 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 94
or disconnect 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 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 95
11 JP9 PCI Express Card Socket 4 JP4 Internal MIC Connector 12 LED1 Power/Suspend LED 5 U5 South Bridge (ICH8M) 13 LED2 Battery Charge/Discharge LED 6 JP6 Internal Track-Pad Connector 14 JP13 Mainboard to Audio Board Connector 7 JP5 Internal Keyboard Connector 15 JP11 Mainboard - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 96
JP18 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 - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 98
Aspire Poyang Exploded Diagram Category ADAPTER BATTERY BOARD No. Part Name and Description Acer Part No. ADAPTER 90W 3PIN DELTA ADP-90SB AP.09001.003 BBAC ADAPTER 90W 3PIN DELTA ADP-90SB AP.09001.013 BBEA ADAPTER 90W 3PIN LITEON PA-1900- AP.09003.006 24AR ADAPTER 90W 3PIN LITEON PA-1900- AP. - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 100
Category No. Part Name 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 DVB-T ANT DC-IN CABLE (90W) UMA/DIS 50.ABD02.001 20.ABD02.001 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 101
and Description THERMAL DOOR 17 DIS Acer Part No. 42.AHK02.001 CPU/PROCESSOR COMBO KC.54501.DTP DVD/CDRW 24X COMBO MODULE 6M.AHJ02.002 DVD-RW DRIVE Chapter 6 DVD/CDRW COMBP DRIVE HLDS GCC-T10N VISTA 0FA DVD/CDRW COMBP DRIVE SONY CRX880A VISTA 0FA ODD BEZEL-COMBO ODD BRACKET 17 KO.0240D. - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 102
HDD/HARD DISK 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 MODULE - Acer Aspire 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G 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 7520G | Aspire 7520 / 7520G Service Guide - Page 105
Category MAINBOARD No. Part Name and Description Acer Part No. LCD 17 WXGA GLARE AUO B170PW03 LK.17105.005 V4 200nits 16ms LCD 17 WXGA GLARE CMO N170C2- LK.1700D.009 L02 10ms 200nits LCD 17 WXGA GLARE LPL LP171WP4- LK.17008.025 TLB1 16ms 200nits LCD 17 WXGA GLARE SAMSUNG LK.17006.024 - Acer Aspire 7520G | Aspire 7520 / 7520G Service Guide - Page 106
and Description VGA THERMAL (M71M) DIS 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 50.AHJ02.008 50.AHJ02.009 23.AHJ02.004 REMOTE CONTROLLER EU REMOTE CONTROLLER TS REMOTE CONTROLLER