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Aspire 5251/5551G/5551 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

Summary of Contents

  • Page 1

    Aspire 5251/5551G/5551 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...

  • Page 2

    Revision History Please refer to the table below for the updates made on Aspire 5251/5551G/5551 service guides. Date Chapter Updates...

  • Page 3

    Copyright Copyright © 2010 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Incorporated.

  • Page 4

    Conventions The following conventions are used in this manual: SCREEN MESSAGES NOTE WARNING CAUTION IMPORTANT NOTE: This symbol where placed in the Service Guide designates a component that should be recycled according to the local regulations. Denotes actual messages that appear on screen.

  • Page 5

    DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and service of customer machines.

  • Page 7: Table Of Contents

    Aspire 5251/5551G/5551 BIOS ........

  • Page 8: Table Of Contents

    Table of Contents Removing the USB Board ......... .73 Removing the Bluetooth Board .

  • Page 9: Table Of Contents

    Aspire 5251/5551G/5551 FRU List ........

  • Page 10

    Table of Contents...

  • Page 11: System Specifications, Features

    • Genuine Windows® 7 Home Basic 64-bit CPU/Chipset • AMD V Series processor V120 (512 KB L2 cache, 2.20 GHz, 3.2GT/s, 25 W) (Aspire 5251) • AMD M880G Chipset (Aspire 5251) • AMD Phenom™ II triple-core mobile processor N830 (1.5 MB L2 cache, 2.10 GHz, 3.6GT/s, 35 W) (Aspire 5551/5551G) •...

  • Page 12

    16.7 million colors (Aspire 5251/5551/5551G) • External resolution / refresh rates: • VGA port up to 2560 x 1440: 75 Hz (Aspire 5251/5551) • VGA port up to 2048 x 1536: 85 Hz (Aspire 5551G) • HDMI™ port up to 1920 x 1080: 60 Hz (Aspire 5251/5551/5551G) •...

  • Page 13

    Write: 24X CD-R, 16X CD-RW, 8X DVD-R, 8X DVD+R, 4X DVD-R DL, 4X DVD+R DL, 6X DVD-RW, 8X DVD+RW, 5X DVD-RAM Communication • Acer Video Conference, featuring: • Acer Crystal Eye 1.3 MP webcam, 1280 x 1024 resolution • WLAN: • Acer InviLink™ Nplify™ 802.11b/g/n Wi-Fi CERTIFIED™ •...

  • Page 14

    • HDMI™ port with HDCP support • External display (VGA) port • Headphone/speaker/line-out jack • Microphone-in jack • Ethernet (RJ-45) port • DC-in jack for AC adapter Optional Items • 1 GB / 2 GB / 4 GB DDR3 1066 MHz soDIMM module •...

  • Page 15: System Block Diagram

    System Block Diagram LVDS HDMI Conn. LAN(GbE) MINI Card 1 Broadcom WLAN BCM57780 GPP1 GPP0 RJ45 Fan Control RTC CKT. Extend Card/B 1. USB X2 LID SW / MEDIA/B 2. Cardreader Power On/Off CKT. DC/DC Interface CKT. Power Circuit Chapter 1 Danube AMD S1G4 Processor Memory BUS(DDR3)

  • Page 16: Your Acer Notebook Tour, Front View

    Your Acer Notebook tour Front View Icon Item Acer Crystal Eye Web camera for video communication webcam (for selected models). Display screen Also called Liquid-Crystal Display (LCD), displays computer output. Indicates when the hard disk drive is active. Communication Indicates the computer’s wireless connectivitoy indicator device status.

  • Page 17: Closed Front View, Left View

    Icon NOTE: The front panel indicators are visible even when the computer cover is closed. Closed Front View Icon Left View Icon Chapter 1 Item Indicates the computer’s power status. Power Indicates the computer’s battery status. Battery 1. Charging: The light shows amber when the battery is charging.

  • Page 18: Right View

    Icon Right View Icon USB 2.0 ports Optical drive Optical disk access indicator Optical drive eject button Emergency eject hole Kensington lock slot Item USB 2.0 ports Connect to USB 2.0 devices (e.g. USB mouse, USB camera). Microphone-in Accepts input from external microphones. jack Headphones/ Connects to audio line-out devices...

  • Page 19: Bottom View, Indicators

    Bottom View Icon Indicators The computer has several easy-to-read status indicators. Icon Power Battery Communication indicator Chapter 1 Item Battery bay Houses the computer's battery pack. Battery release Releases the battery for removal. latch Hard disk bay Houses the computer's hard disk (secured with screws).

  • Page 20: Touchpad Basics

    TouchPad Basics The following items show you how to use the TouchPad: • Move your finger across the TouchPad (1) to move the cursor. • Press the left (2) and right (3) buttons located beneath the TouchPad to perform selection and execution functions.

  • Page 21: Using The Keyboard, Lock Keys And Embedded Numeric Keypad

    Using the Keyboard The keyboard has full-sized keys and an embedded numeric keypad, separate cursor, lock, Windows, function and special keys. Lock Keys and embedded numeric keypad The keyboard has two lock keys which you can toggle on and off. Lock key Caps Lock When Caps Lock is on, all alphabetic characters typed are in uppercase.

  • Page 22: Windows Keys

    Windows Keys The keyboard has two keys that perform Windows-specific functions. Windows key Pressed alone, this key has the same effect as clicking on the Windows Start button; it launches the Start menu. It can also be used with other keys to provide a variety of functions: <...

  • Page 23: Hot Keys

    Hot Keys The computer employs hotkeys or key combinations to access most of the computer’s controls like screen brightness, volume output and the BIOS utility. To activate hot keys, press and hold the <Fn> key before pressing the other key in the hotkey combination. Hotkey Icon <Fn>...

  • Page 24: Hardware Specifications And Configurations

    S1g4 1.8 GHz 2 MB S1g4 Fan Speed (rpm) 2500 2900 3200 3600 4000 4000 Core Acer P/N Voltage 35 W 25 W 25 W 25 W 35 W 35 W 35 W 25 W 25 W SPL Spec (dBA)

  • Page 25

    Windows Idle, HDD spinning Fan 3 Play Movie (read from HDD), Play TV (TV tuner sku) Fan 4 3DMark06,Prime95, Prime95+Play TV(TV tuner sku), acer screen saver, HDD spinning Fan 5 TAT100% or Thermanow100%,3DMark06, at ambient 35C, HDD spinning ODM’s test software...

  • Page 26

    • Suspend to RAM (S3)/Disk (S4) • Various hot-keys for system control • Support SMBIOS 2.3, PCI2.2. • Refer to Acer BIOS specification. • DMI utility for BIOS serial number configurable/asset tag • Support PXE • Support Y2K solution •...

  • Page 27

    Onboard LAN Item Vendor/model name Features Wireless LAN Item Vendor/model name Protocol Interface Antenna Battery Item Vendor & model name Battery Type Pack capacity Normal Voltage Package configuration Chapter 1 Specification Broadcom 57780KMLG for GIGA LAN • Integrated 10/100/10000BASE-T transceiver •...

  • Page 28

    System Power Management ACPI mode Mech. Off (G3) Soft Off (G2/S5) Working (G0/S0) Sleeping State (S3) Sleeping State (S4) Power and Keyboard Controller Item Controller Total number of keypads Windows logo key Hotkeys Hard Disk Drive Interface Item Vendor/model name Seagate Capacity (MB) 160, 250,...

  • Page 29

    Super-Multi Drive Module Item Vendor & model HLDS GT20N name Performance With CD Diskette Specification Transfer rate (MB/ Sustained: sec) 3,600 KB/s (24x) max. Buffer Memory 2 MB Interface SATA Applicable disc DVD-ROM: formats 4.7GB (Single Layer) 8.5GB (Dual Layer) DVD-R: 3.95GB (Ver.

  • Page 30

    720x576p/50Hz 16:9 1280x720p/50Hz 16:9 1920x1080i/50Hz 16:9 1440x576i/50Hz 4:3 1440x576i/50Hz 16:9 1920x1080p/50Hz 16:9 2048x1536/85 Hz 16:9 2560x1440/75 Hz 16:9 Specification Aspire 5251/5551 Aspire 5551G Aspire 5251/5551/5551G Aspire 5251 Aspire 5551 • All resolutions up to 2456 x 1536: 60 Hz •...

  • Page 31

    LCD 15.6” Item Vendor/model name Screen Diagonal (mm) Display resolution (pixels) Pixel Pitch Display Mode Typical White Luminance (cd/m (also called Brightness) Contrast Ratio Response Time (Optical Rise Time/Fall Time) msec Luminance Uniformity Electrical Interface Support Color Viewing Angle (up/down/right/ left) Temperature Range (°C) Operating...

  • Page 32

    Card Reader Item Part Name Package General Features Specification RealTek RT5160 5-in-1 card reader • Push-push type, with dummy card • Built-in 250mA Power MOS for memory card • Over Current Protection and Over Temperature Protection • Power saving • Power Down when no memory card is inserted •...

  • Page 33

    Provides 10-foot GUI for easy menu navigation on Windows Media Center • Microphone Acoustic Echo Cancellation (AEC), Noise Suppression (NS), and Beam Forming(BF)technology for voice application • Smart multiple streaming operation • HDMI audio driver for AMD platform • Acer exclusive software features...

  • Page 34

    Chapter 1...

  • Page 35: System Utilities, Bios Setup Utility, Navigating The Bios Utility

    System Utilities BIOS Setup Utility The BIOS Setup Utility is a hardware configuration program built into your computer’s BIOS (Basic Input/ Output System). Your computer is already properly configured and optimized, and you do not need to run this utility. However, if you encounter configuration problems, you may need to run Setup.

  • Page 36: Aspire 5251/5551g/5551 Bios, Information

    Aspire 5251/5551G/5551 BIOS Information The Information screen displays a summary of the computer hardware information. Information Main Security C P U T y p e C P U T y p e C P U S p e e d...

  • Page 37: Main

    Main The Main screen allows the user to set the system time and date as well as enable and disable boot options and recovery. Information Main S y s t e m Ti m e : S y s t e m Ti m e : S y s t e m D a t e : S y s t e m D a t e : To t a l M e m o r y :...

  • Page 38: Security

    Security The Security screen contains parameters that help safeguard and protect your computer from unauthorized use. NOTE: System BIOS does not support Trusted Platform Module (TPM). Information Main Security S u p e r v i s o r P a s s w o r d I s S u p e r v i s o r P a s s w o r d I s U s e r P a s s w o r d I s U s e r P a s s w o r d I s...

  • Page 39

    Setting a Password Follow these steps as you set the user or the supervisor password: Use the ↑ and ↓ keys to highlight the Set Supervisor Password parameter and press the Enter key. The Set Supervisor Password box appears: Type a password in the “Enter New Password” field. The password length can not exceed 8 alphanumeric characters (A-Z, a-z, 0-9, not case sensitive).

  • Page 40

    Changing a Password Use the ↑ and ↓ keys to highlight the Set Supervisor Password parameter and press the Enter key. The Set Supervisor Password box appears. Type the current password in the Enter Current Password field and press Enter. Type a password in the Enter New Password field.

  • Page 41: Boot

    Boot This menu allows the user to decide the order of boot devices to load the operating system. Bootable devices includes the USB diskette drives, the onboard hard disk drive and the DVD drive in the module bay. Select Boot menu to select specific devices to support boot. Information Main B o o t p r i o r i t y o r d e r :...

  • Page 42: Exit

    Exit The Exit screen allows you to save or discard any changes you made and quit the BIOS Utility. Information Main E x i t S a v i n g C h a n g e s E x i t S a v i n g C h a n g e s E x i t D i s c a r d i n g C h a n g e s E x i t D i s c a r d i n g C h a n g e s L o a d S e t u p D e f a u l t s...

  • Page 43: Bios Flash Utilities

    BIOS Flash Utilities The BIOS flash memory update is required for the following conditions: • New versions of system programs • New features or options • Restore a BIOS when it becomes corrupted. Use the Flash utility to update the system BIOS Flash ROM. NOTE: If you do not have a crisis recovery diskette at hand, then you should create a Crisis Recovery Diskette before you use the Flash utility.

  • Page 44: Dos Flash Utility

    DOS Flash Utility Perform the following steps to use the DOS Flash Utility: Press F2 during boot to enter the Setup Menu. Select Boot Menu to modify the boot priority order, for example, if using USB HDD to Update BIOS, move USB HDD to position 1.

  • Page 45

    In flash BIOS, the message Please do not remove AC Power Source displays. NOTE: If the AC power is not connected, the following message displays. Plug in the AC power to continue. Flash is complete when the message Flash programming complete displays. Chapter 2...

  • Page 46: Winflash Utility

    WinFlash Utility Perform the following steps to use the WinFlash Utility: Double-click the WinFlash executable. Click OK to begin the update. A progress screen displays. Chapter 2...

  • Page 47: Remove Hdd/bios Password Utilities

    Remove HDD/BIOS Password Utilities This section provides you with details about removing HDD/BIOS password: Remove HDD Password: If you key in the wrong HDD password three times, an error is generated. To reset the HDD password, perform the following steps: After the error is displayed, select the Enter Unlock Password option on the screen.

  • Page 48

    Removing BIOS Passwords: To clear the User or Supervisor passwords, open the DIMM door and use a metal instrument to short the J1 point. Cleaning BIOS Passwords To clean the User or Supervisor passwords, perform the following steps: From a DOS prompt, execute clnpwd.exe Press 1 or 2 to clean the desired password shown on the screen.

  • Page 49

    Using Boot Sequence Selector The Boot Sequence Selector allows the boot order to be changed without accessing the BIOS. To use Boot Sequence Selector, perform the following steps: Enter into DOS. Execute BS.exe to display the usage screen. Select the desired boot sequence by entering the corresponding sequence. For example, enter BS 2 to change the boot sequence to HDD | CD ROM | LAN | Floppy.

  • Page 50

    The following examples show the commands and the corresponding output information. Read DMI Information from Memory Input: dmitools /r Output: Manufacturer (Type1, Offset04h): Acer Product Name (Type1, Offset05h): Aspire xxxxx Serial Number (Type1, Offset07h): 01234567890123456789 UUID String (Type1, Offset08h): xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx Write Manufacturer Name to EEPROM...

  • Page 51

    Using the LAN MAC EEPROM Utility You can use the MAC.BAT utility to write the MAC.CFG file to the EEPROM under DOS mode. Use a text editor (for example: Notepad) to open the MAC.CFG file. You can see the MAC.CFG contents as below: WriteData = ‘001122334455' StartAddr=7A...

  • Page 52

    Chapter 2...

  • Page 53: Machine Disassembly And Replacement, Disassembly Requirements

    Machine Disassembly and Replacement IMPORTANT: The outside housing and color may vary from the mass produced model. This chapter contains step-by-step procedures on how to disassemble the notebook computer for maintenance and troubleshooting. Disassembly Requirements To disassemble the computer, you need the following tools: Wrist grounding strap and conductive mat for preventing electrostatic discharge •...

  • Page 54: Pre-disassembly Instructions

    Pre-disassembly Instructions 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.

  • Page 55: Disassembly Process

    Disassembly Process IMPORTANT: The LCD Module cannot be disassembled outside of factory conditions. If any part of the LCD Module is faulty, such as the camera, antenna or LCD panel, the whole module must be replaced. The disassembly process is divided into the following stages: External module disassembly •...

  • Page 56: External Module Disassembly Process, External Modules Disassembly Flowchart

    External Module Disassembly Process IMPORTANT: The outside housing and color may vary from the mass produced model. External Modules Disassembly Flowchart The flowchart below gives you a graphic representation of the external module disassembly sequence and instructs you on the components that need to be removed during servicing. For example, if you want to remove the keyboard, you must first remove the switch board.

  • Page 57: Removing The Battery Pack

    Removing the Battery Pack 1. Turn computer over. Slide the battery lock in the direction shown. 2. Slide and hold the battery release latch to the release position (1), then lift out the battery pack from the main unit (2). NOTE: Please follow local regulations for disposal.

  • Page 58: Removing The Sd Dummy Card

    Removing the SD Dummy Card 1. Push the SD dummy card all the way in to eject it. 2. Pull it out from the slot. Chapter 3...

  • Page 59: Removing The Optical Drive Module

    Removing the Optical Drive Module 1. See “Removing the Battery Pack” on page 47. 2. Remove the screw securing the ODD module. Step ODD Module M2.5*8 3. Pull the optical drive module out from the chassis. Chapter 3 Size Quantity Screw Type...

  • Page 60

    4. Remove the two (2) screws securing the ODD bracket and remove the ODD bracket from the optical disk drive module. Step Size Quantity Screw Type ODD Bracket M2*3 5. Remove the ODD bezel by prying the top edge away and clear of the module. Chapter 3...

  • Page 61: Removing The Logic Lower Door

    Removing the Logic Lower Door 1. Remove two (2) screws from the logic lower door. Step Logic lower door M2.5*8 2. Lift the door beginning from the inner edge as shown. 3. Lift the door clear of the device, exposing the HDD, DIMM, and WLAN modules. Chapter 3 Size Quantity...

  • Page 62: Removing The 3g Cover

    Removing the 3G Cover 1. Remove one (1) screw from the 3G Cover. Step 3G Cover M2*3 2. Lift the 3G Cover from the right edge first, then remove completely. Size Quantity Screw Type Chapter 3...

  • Page 63: Removing The Dimm Module

    Removing the DIMM Module 1. See “Removing the Logic Lower Door” on page 51. 2. Push out the release latches on both sides of the DIMM socket to release the DIMM module. 3. Remove the DIMM module. 4. Repeat steps 2 and 3 for the second DIMM module if present. Chapter 3...

  • Page 64: Removing The Wlan Module

    Removing the WLAN Module 1. See “Removing the Logic Lower Door” on page 51. 2. Disconnect the antenna cables from the WLAN Board. NOTE: Cable placement is Black to the MAIN terminal and White to the AUX terminal. 3. Move the antenna away and remove the two (1) screws to release the WLAN Board. Step WLAN Module M2*3...

  • Page 65

    4. Detach the WLAN Board from the WLAN socket. NOTE: When reattaching the antennas, ensure the cables are tucked into the chassis to prevent damage. Chapter 3...

  • Page 66: Removing The Hard Disk Drive Module

    Removing the Hard Disk Drive Module 1. See “Removing the Logic Lower Door” on page 51. 2. Using the pull-tab, slide the HDD Module in the direction of the arrow to disconnect the interface. 3. Lift the HDD Module clear of the HDD bay. NOTE: To prevent damage to device, avoid pressing down on it or placing heavy objects on top of it.

  • Page 67

    4. Remove the four (4) screws (two each side) securing the hard disk to the carrier. Step Size Quantity Screw Type HDD Carrier M3*3 5. Remove the HDD from the carrier. Chapter 3...

  • Page 68: Main Unit Disassembly Process, Main Unit Disassembly Flowchart

    Main Unit Disassembly Process Main Unit Disassembly Flowchart Remove External Modules before proceeding Remove Power Board Remove Left Speaker Module Remove Right Speaker Module Remove USB Board Screw List Step Upper Cover M2.5*5 Lower Cover M2.5*8 Battery Bay M2*3 Left Speaker Module M2*3 Right Speaker Module M2*3...

  • Page 69: Removing The Keyboard

    Removing the Keyboard 1. Unlock the six (6) keyboard locks. 2. Pry up the centre of the Keyboard and rotate it upward away from the Upper Cover. 3. Turn the keyboard over on to the TouchPad area to expose the FFC connector. Chapter 3...

  • Page 70

    4. Open the locking latch and disconnect the FFC from the mainboard. 5. Lift the keyboard clear of the Upper Cover. Chapter 3...

  • Page 71: Removing The Upper Cover

    Removing the Upper Cover 1. See “External Module Disassembly Process” on page 46. 2. Turn the computer over. Remove the eleven (11) screws on the lower cover and four (4) screws from the battery bay. Step Lower Cover (red M2.5*8 callout) Battery Bay M2*3...

  • Page 72

    3. Turn the computer over and disconnect the following four (4) cables from the Mainboard. Chapter 3...

  • Page 73

    4. Release the locking latch on A. 6. Release the locking latch on B and remove the cable as shown. 7. Release the locking latch on C and remove the cable as shown. NOTE: Avoid pulling on cables directly to prevent damage to the connectors. NOTE: Use the pull-tabs on FFCs whenever available to prevent damage.

  • Page 74

    9. Remove the seven (7) screws on the Upper Cover as shown. Step Size Quantity Screw Type Upper Cover M2.5*5 10. Starting at the top right side of the cover, pry apart the Upper and Lower Covers as shown. Work along the front edge of the casing to the left as shown, then lift the Upper Cover clear of the Lower Cover.

  • Page 75: Removing The Left Speaker Module

    Removing the Left Speaker Module 1. See “Removing the Upper Cover” on page 61. 2. Locate the Left Speaker Module on the Upper Cover as shown. 3. Remove two (2) screws from the left speaker module. Step Left Speaker M2*3 Module 4.

  • Page 76

    5. Lift the Speaker clear of the Upper Cover. Chapter 3...

  • Page 77: Removing The Right Speaker Module

    Removing the Right Speaker Module 1. See “Removing the Upper Cover” on page 61. 2. Locate the Right Speaker Module on the Upper Cover as shown. 3. Remove the two (2) securing screws from the Right Speaker Module. Step Right Speaker M2*3 Module 4.

  • Page 78

    5. Lift the Right Speaker Module clear of the device. Chapter 3...

  • Page 79: Removing The Power Board

    Removing the Power Board 1. See “Removing the Upper Cover” on page 61. 2. Turn the upper cover over and remove the power board cable. Pass the cable through the upper cover as shown. 3. Remove two (2) screws from the power board. Step Power board M2*3...

  • Page 80: Removing The Touchpad Bracket

    Removing the TouchPad Bracket IMPORTANT: The TouchPad Board cannot be removed individually. To replace the TouchPad Board, replace the entire Upper Cover. 1. See “Removing the Upper Cover” on page 61. 2. Lift the FFC to detach the adhesive securing the cable to the Upper Cover. 3.

  • Page 81

    4. Remove the one (1) screw from TouchPad bracket. Step Size Quantity Screw Type TouchPad Bracket M2*3 5. Pry the Touchpad bracket off the adhesive and remove it as shown. Chapter 3...

  • Page 82: Removing The Card Reader Board

    Removing the Card Reader Board 1. See “Removing the Upper Cover” on page 61. 2. Unlock the mainboard to card reader cable connector. 3. Remove one (1) screw from the card reader board. Step Card Reader M2*3 4. Lift the card reader board clear of the device. Size Quantity Screw Type...

  • Page 83: Removing The Usb Board

    Removing the USB Board 1. See “Removing the Upper Cover” on page 61. 2. Unlock the mainboard to USB cable connector. 3. Peel the cable off the adhesive as shown. 4. Remove one (1) screw from the USB board. Step M2*3 Chapter 3 Size...

  • Page 84

    5. Lift the USB board clear of the device. Chapter 3...

  • Page 85: Removing The Bluetooth Board

    Removing the Bluetooth Board 1. See “Removing the Upper Cover” on page 61. 2. Pry the Bluetooth board from the adhesive. 3. Disconnect the mainboard to Bluetooth cable. 4. Lift the Bluetooth board away from the cable channel as shown. Chapter 3...

  • Page 86: Removing The Mainboard

    Removing the Mainboard 1. See “Removing the Upper Cover” on page 61. 2. Disconnect the speaker to mainboard cable. 3. Disconnect the LVDS cable. Chapter 3...

  • Page 87

    4. Remove the one (1) securing screw from the Mainboard. Step Size Quantity Screw Type Mainboard M2.5*5 5. Place a dust free, protective mat on the lcd screen to aid in the removal of the mainboard. Chapter 3...

  • Page 88

    6. Lift the inner edge of the mainboard up and out to free it from the lower case, without removing the mainboard completely from the chassis. CAUTION: Do not remove the mainboard completely. The mainboard is still connected to the chassis. 7.

  • Page 89

    8. Disconnect the power cable. 9. Remove the mainboard from the chassis and turn it over. NOTE: Circuit boards >10 cm² have been highlighted with a yellow rectangle as shown in the previous image. Please detach the Circuit board and follow local regulations for disposal. 10.

  • Page 90

    11. Disconnect the Bluetooth to mainboard cable. Chapter 3...

  • Page 91: Removing The Thermal Module

    Removing the Thermal Module 1. See “Removing the Upper Cover” on page 61. 2. Disconnect the fan cable. 3. Remove the four (4) securing screws (in reverse numerical order from screw 4 to 1), then the two (2) screws on the GPU.

  • Page 92

    4. Carefully lift the Thermal Module clear of the Mainboard. Chapter 3...

  • Page 93: Removing The Cpu

    Removing the CPU IMPORTANT: The pins on the underside of the CPU are very delicate. If they are damaged, the CPU may malfunction. Place the CPU on a clean, dry surface when it is not installed. 1. See “Removing the Thermal Module” on page 81. 2.

  • Page 94: Lcd Module Disassembly Process, Lcd Module Disassembly Flowchart

    LCD Module Disassembly Process LCD Module Disassembly Flowchart Remove LCD Brackets and FPC Cable Screw List Step Screw LCD Assy M2.5*5 LCD Bezel M2.5*6 LCD Panel M2.5*5 LCD Brackets M2*3 Remove LCD Assembly Remove LCD Bezel Remove Camera Module Remove LCD Panel Remove Remove...

  • Page 95: Removing The Lcd Assembly

    Removing the LCD Assembly 1. See “Removing the Upper Cover” on page 61. 2. Turn the device over and pass the black and white antenna cables through the lower cover. 3. Free the black and white antenna cables from the cable channel as shown. 4.

  • Page 96

    5. Remove the LVDS cable from the cable channel. 6. Remove the adhesive tape from the black antenna cable. 7. Free the cable from the cable channel as shown. Chapter 3...

  • Page 97

    8. Remove four (4) screws from the LCD assembly. Step Size Quantity Screw Type LCD assembly M2.5*5 9. Remove the LCD assembly from the lower cover. Chapter 3...

  • Page 98: Removing The Lcd Bezel

    Removing the LCD Bezel 1. See “Removing the LCD Assembly” on page 85. 2. Remove the two bezel screw caps and screws. Step LCD Bezel M2.5*6 3. Starting from the bottom edge of the bezel, pry the bezel upwards and away from the panel. Work along the right side toward the top of the bezel, prying the covers apart.

  • Page 99: Removing The Camera Module

    Removing the Camera Module 1. See “Removing the LCD Assembly” on page 85. 2. Locate the Camera Module at the top of the LCD Module and disconnect the camera cable. 3. Remove the Camera from the module. Chapter 3...

  • Page 100: Removing The Lcd Panel

    Removing the LCD Panel 1. See “Removing the Camera Module” on page 89. 2. Remove the four (4) securing screws from the LCD Panel. Step LCD Panel M2.5*5 3. Remove the adhesive strip holding the cables in place. 4. Lift the LCD Panel clear of the module. Size Quantity Screw Type...

  • Page 101: Removing The Lcd Brackets And Lvds Cable

    Removing the LCD Brackets and LVDS Cable 1. See “Removing the LCD Panel” on page 90. 2. Remove the six (6) securing screws (three on each side) from the LCD Panel brackets. Step LCD Brackets M2*3 3. Remove the LCD brackets by pulling away from the LCD Panel. Chapter 3 Size Quantity...

  • Page 102

    4. Turn the LCD panel over to expose the rear. Pull the cable up as shown. 5. Remove the adhesive tape from the cable. 6. Peel back the mylar securing the LVDS cable. Chapter 3...

  • Page 103

    7. Disconnect the LVDS cable from the panel. Chapter 3...

  • Page 104: Removing The Microphone Cable

    Removing the Microphone Cable 1. See “Removing the LCD Panel” on page 90. 2. Remove the cable bundle from the hinge channel. 3. Peel back the foil tabs and remove the microphone cable from the cable channel. 4. Peel back the foil tab on the microphone set. Chapter 3...

  • Page 105

    5. Lift the microphone set and cable clear of the LCD cover. Chapter 3...

  • Page 106: Removing The Antennas

    Removing the Antennas 1. See “Removing the LCD Panel” on page 90. 2. Remove the black antenna from the cable channel. 3. Peel back the foil tabs and remove the cable from the cable channel. 4. Pry the antenna assembly clear of the device. Chapter 3...

  • Page 107

    5. Remove the white antenna from the hinge channel. 6. Peel back the foil tabs and remove the cable from the cable channel. 7. Pry the antenna assembly clear of the device. Chapter 3...

  • Page 108: Lcd Module Reassembly Procedure, Replacing The Antennas

    LCD Module Reassembly Procedure Replacing the Antennas 1. Adhere the white antenna assembly to the LCD cover. 2. Run the cable along the cable channel and fold over the foil tabs to secure the cable in place. 3. Run the white antenna along the hinge channel. Chapter 3...

  • Page 109

    4. Adhere the black antenna assembly on the LCD cover. 5. Run the cable along the cable channel and fold over the foil tabs to secure the cable in place. 6. Run the black antenna cable along the cable channel. Chapter 3...

  • Page 110: Replacing The Microphone Cable

    Replacing the Microphone Cable 1. Place the microphone set in the panel. 3. Fold over the foil tabs and continue running the microphone cable along the cable channel indicated between the red callouts. IMPORTANT: Ensure that the LCD cable runs between the callouts to avoid trapping when the panel is replaced in the LCD Module.

  • Page 111: Replacing The Lcd Brackets And Lvds Cable

    Replacing the LCD Brackets and LVDS Cable 1. Connect the LVDS cable to the LCD panel. 2. Adhere the LVDS mylar to the LCD panel. 3. Adhere the LVDS cable to the panel by running it between the callouts as shown. Chapter 3...

  • Page 112

    4. Attach the LCD brackets to the LCD Panel. 5. Replace six (6) securing screws (three on each side) of the LCD Panel brackets. Chapter 3...

  • Page 113: Replacing The Lcd Panel

    Replacing the LCD Panel 1. Place the LCD Panel in the module as shown. 3. Run the cable through the left hinge channel. Chapter 3 2. Run the cable along the channel in the LCD Module as shown. 4. Secure the panel using four (4) securing screws.

  • Page 114: Replacing The Camera Module

    Replacing the Camera Module 1. Place the Camera in the module. 2. Connect the camera cable. Chapter 3...

  • Page 115: Replacing The Lcd Bezel

    Replacing the LCD Bezel 1. Replace the bezel and press down until there are no gaps between the bezel and the LCD Module. IMPORTANT: Ensure that the LCD cables pass through the hinge wells and are not trapped by the bezel. 2.

  • Page 116: Replacing The Lcd Assembly

    Replacing the LCD Assembly 1. Place the LCD assembly on the lower cover. 2. Secure the LCD assembly using four (4) screws. Chapter 3...

  • Page 117

    3. Run the black antenna cable along the cable channel. 4. Replace the adhesive tape to secure the cable to the chassis. 5. Near the left hinge, run the LVDS cable along the cable channel. Chapter 3...

  • Page 118

    6. Run the white antenna cable along the cable channel as shown. 7. Continue running the black and white antenna cables along the cable channel. 8. Pass the black and white antenna cables through the lower cover. Chapter 3...

  • Page 119: Main Module Reassembly Procedure, Replacing The Cpu

    Main Module Reassembly Procedure Replacing the CPU IMPORTANT: Apply a suitable thermal grease and ensure all heat pads are in place before replacing the CPU. The following thermal grease types are approved for use: N-302 Dimand TIM Grease • Honeywell •...

  • Page 120: Replacing The Thermal Module

    Replacing the Thermal Module IMPORTANT: Apply a suitable thermal grease and ensure all heat pads are in place before replacing the Thermal Module. The following thermal grease types are approved for use: N-302 Dimand TIM Grease • Honeywell • The following thermal pads are approved for use: Eapus XR-PE •...

  • Page 121

    5. Connect the fan cable. Chapter 3...

  • Page 122: Replacing The Mainboard

    Replacing the Mainboard 1. Connect the Bluetooth to mainboard cable. 2. Apply the adhesive tape to the Bluetooth cable. 3. Connect the power cable. Chapter 3...

  • Page 123

    4. Place the left edge of the mainboard in first to line up the I/O ports before lowering the mainboard into the chassis. NOTE: Ensure the I/O ports are positioned correctly through the casing. 5. Secure the one (1) securing screw on the Mainboard. Chapter 3...

  • Page 124

    6. Connect the LVDS cable to the mainboard. 7. Connect the microphone cable. Chapter 3...

  • Page 125: Replacing The Bluetooth Board

    Replacing the Bluetooth Board 1. Run the Bluetooth cable along the channel as shown. 2. Connect the mainboard to Bluetooth cable. 3. Adhere the Bluetooth board to the adhesive. Chapter 3...

  • Page 126: Replacing The Usb Board

    Replacing the USB Board 1. Place the USB board in the device. 2. Secure the one (1) screw on the USB board. 3. Adhere the cable to the chassis as shown. Chapter 3...

  • Page 127

    4. Connect the USB cable to the mainboard and lock the connector. Chapter 3...

  • Page 128: Replacing The Card Reader Board

    Replacing the Card Reader Board 1. Place the card reader board in the device. 2. Secure one (1) screw on the card reader board. 3. Connect the card reader cable and lock the connector. Chapter 3...

  • Page 129: Replacing The Touchpad Bracket

    Replacing the TouchPad Bracket 1. Replace the TouchPad bracket top edge first to engage the securing clips and press down firmly. 2. Replace the one (1) screws to secure the TouchPad Bracket to the Upper Cover. 3. Replace the TouchPad FFC and close the locking latch on the connector. Chapter 3...

  • Page 130

    4. Replace the FFC and press down as indicated to secure it to the Upper Cover. Chapter 3...

  • Page 131: Replacing The Power Board

    Replacing the Power Board 1. Place the power board in the upper cover. Ensure that the assembly fits inside the bracket securely. 2. Secure two (2) screws on the power board. 3. Pass the power board cable through the upper cover. Adhere the power board cable as shown. Chapter 3...

  • Page 132: Replacing The Right Speaker Module

    Replacing the Right Speaker Module 1. Place the right speaker module in the chassis as shown. 2. Run the speaker cable along the channel. 3. Secure the two (2) securing screws on the Right Speaker Module. Chapter 3...

  • Page 133: Replacing The Left Speaker Module

    Replacing the Left Speaker Module 1. Place the module right side first on the Upper Cover as shown. 3. Secure two (2) screws from the left speaker module. Chapter 3 2. Run the Speaker cable along the cable channel.

  • Page 134: Replacing The Upper Cover

    Replacing the Upper Cover 1. Place the Upper Cover on the Lower Cover as shown and press all sides are firmly in place. 2. Secure the seven (7) screws on the Upper Cover as shown. Chapter 3...

  • Page 135

    3. Connect the following cables to the Mainboard. 4. Connect D as shown. 5. Connect C as shown. Chapter 3...

  • Page 136

    6. Connect B as shown. 7. Connect A and lock as shown. 8. Turn the computer over. Remove the eleven (11) screws on the lower cover and four (4) screws from the battery bay. Chapter 3...

  • Page 137: Replacing The Keyboard

    Replacing the Keyboard 1. Connect the Keyboard FFC to the Mainboard and close the locking latch to secure the cable in place. 2. Replace the Keyboard by first lining up the bottom edge. Press down firmly to lock. Chapter 3...

  • Page 138: Replacing The Hard Disk Drive Module

    Replacing the Hard Disk Drive Module 1. Place the HDD in the HDD carrier. 3. Insert the HDD, as indicated and lower it into place. 2. Replace the four (4) screws (two each side) to secure the carrier. 4. Slide the HDD in the direction of the arrow to connect the interface.

  • Page 139: Replacing The Wlan Module

    Replacing the WLAN Module 1. Insert the WLAN Module into the WLAN socket. 3. Connect the two (2) Antenna cables to the module. NOTE: The black cable connects to the upper terminal (MAIN) and the white cable to the lower terminal (MAIN).

  • Page 140: Replacing The Dimm Modules

    Replacing the DIMM Modules 1. Insert the DIMM Module in place. 3. Repeat steps for the second DIMM module if present. 2. Press down to lock the DIMM module in place. Chapter 3...

  • Page 141: Replacing The 3g Cover

    Replacing the 3G Cover 1. Line up the left edge of the 3G cover with the device, before replacing completely. 2. Replace one (1) screw on the 3G Cover. Chapter 3...

  • Page 142: Replacing The Logic Lower Door

    Replacing the Logic Lower Door 1. Replace the lower cover by first lining up the top edge as shown. 2. Secure two (2) screws on the lower cover. Chapter 3...

  • Page 143: Replacing The Odd Module

    Replacing the ODD Module 1. Press the bezel into the tray, bottom edge first, to secure it to the ODD Module. 3. Secure the ODD bracket with the two (2) screws. 4. Push the ODD Module into the ODD bay until it is flush with the casing.

  • Page 144: Replacing The Sd Dummy Card

    Replacing the SD Dummy Card 1. Insert the SD Dummy Card into the slot as shown. 2. Push until the card clicks into place and is flush with the casing. Chapter 3...

  • Page 145: Replacing The Battery

    Replacing the Battery 1. Slide and hold the battery release latch to the release position (1), insert the battery pack and press down (2). Chapter 3 2. Slide the battery lock in the direction shown to secure the battery in place.

  • Page 146

    Chapter 3...

  • Page 147: Troubleshooting, Common Problems

    Common Problems 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. Obtain the failing symptoms in as much detail as possible.

  • Page 148: Power On Issue

    Power On Issue If the system doesn’t power on, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Computer Shutsdown Intermittently If the system powers off at intervals, perform the following actions one at a time to correct the problem. Check the power cable is properly connected to the computer and the electrical outlet.

  • Page 149: No Display Issue

    No Display Issue If the Display doesn’t work, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: No POST or Video If the POST or video doesn’t display, perform the following actions one at a time to correct the problem. Make sure that the internal display is selected.

  • Page 150: Random Loss Of Bios Settings

    Abnormal Video Display If video displays abnormally, perform the following actions one at a time to correct the problem. Reboot the computer. If permanent vertical/horizontal lines or dark spots display in the same location, the LCD is faulty and should be replaced. See “Disassembly Process” on page 45. If extensive pixel damage is present (different colored spots in the same locations on the screen), the LCD is faulty and should be replaced.

  • Page 151: Lcd Failure, Built-in Keyboard Failure

    LCD Failure If the LCD fails, perform the following actions one at a time to correct the problem. Do not replace a non- defective FRUs: Built-In Keyboard Failure If the built-in Keyboard fails, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Chapter 4...

  • Page 152: Touchpad Failure, Internal Speaker Failure

    TouchPad Failure If the TouchPad doesn’t work, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Internal Speaker Failure If the internal Speakers fail, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Chapter 4...

  • Page 153

    Sound Problems If sound problems are experienced, perform the following actions one at a time to correct the problem. Reboot the computer. Navigate to Start Control Panel the Device Manager to determine that: • The device is properly installed. • There are no red Xs or yellow exclamation marks.

  • Page 154: Hdd Not Operating Correctly

    HDD Not Operating Correctly If the HDD does not operate correctly, perform the following actions one at a time to correct the problem. Disconnect all external devices. Run a complete virus scan using up-to-date software to ensure the computer is virus free. Run the Windows 7Startup Repair Utility: insert the Windows 7Operating System DVD in the ODD and restart the computer.

  • Page 155: Odd Failure

    ODD Failure If the ODD fails, perform the following actions one at a time to correct the problem. Do not replace a non- defective FRUs: ODD Not Operating Correctly If the ODD exhibits any of the following symptoms it may be faulty: •...

  • Page 156

    Double-click lDE ATA/ATAPI controllers. If a device displays a down arrow, right-click on the device and click Enable. Double-click DVD/CD-ROM drives. If the device displays a down arrow, right-click on the device and click Enable. Check that there are no yellow exclamation marks against the items in lDE ATA/ATAPI controllers. If a device has an exclamation mark, right-click on the device and uninstall and reinstall the driver.

  • Page 157

    Double-click IDE ATA/ATAPI controllers, then right-click ATA Device 0. Click Properties and select the Advanced Settings tab. Ensure that the Enable DMA box is checked and click OK. Repeat for the other ATA Devices shown if applicable. Drive Not Detected If Windows cannot detect the drive, perform the following actions one at a time to correct the problem.

  • Page 158: Wireless Function Failure, Thermal Unit Failure

    Wireless Function Failure If the WLAN fails, perform the following actions one at a time to correct the problem. Do not replace a non- defective FRUs: Thermal Unit Failure If the Thermal Unit fails, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Chapter 4...

  • Page 159: External Mouse Failure, Other Failures

    External Mouse Failure If an external Mouse fails, perform the following actions one at a time to correct the problem. Try an alternative mouse. If the mouse uses a wireless connection, insert new batteries and confirm there is a good connection. See the mouse user manual.

  • Page 160: Intermittent Problems, Undetermined Problems

    Issue” on page 138.): Power-off the computer. Visually check them for damage. If any problems are found, replace the FRU. Remove or disconnect all of the following devices: • Non-Acer devices • Printer, mouse, and other external devices • Battery pack •...

  • Page 161: Post Codes

    Post Codes These tables describe the POST codes and descriptions during the POST. Post Code Range Phase PostBDS Reserved SEC Phase POST Code Table Functionality Name (Include\ PostCode.h) SEC_SYSTEM_POWER_ON SEC_BEFORE_MICROCODE_PATCH SEC_AFTER_MICROCODE_PATCH SEC_SETUP_CAR_OK SEC_GO_TO_SECSTARTUP SEC_GO_TO_PEICORE PEI Phase POST Code Table: Functionality Name (Include\ PostCode.h) PEI_SIO_INIT PEI_CPU_REG_INIT...

  • Page 162

    Functionality Name (Include\ PostCode.h) PEI_MEMORY_CALLBACK PEI_ENTER_RECOVERY_MODE PEI_RECOVERY_MEDIA_FOUND PEI_RECOVERY_MEDIA_NOT_FOUND PEI_RECOVERY_LOAD_FILE_DONE PEI_RECOVERY_START_FLASH PEI_ENTER_DXEIPL PEI_FINDING_DXE_CORE PEI_GO_TO_DXE_CORE DXE Phase POST Code Table: Functionality Name (Include\ PostCode.h) DXE_NB_INIT DXE_SB_INIT DXE_IDENTIFY_FLASH_DEVICE DXE_FTW_INIT DXE_VARIABLE_INIT DXE_VARIABLE_INIT_FAIL DXE_MTC_INIT DXE_CPU_INIT DXE_MP_CPU_INIT DXE_SMBUS_INIT DXE_SMART_TIMER_INIT DXE_PCRTC_INIT DXE_RELOCATE_SMBASE DXE_FIRST_SMI DXE_BEFORE_CSM16_INIT DXE_AFTER_CSM16_INIT DXE_LOAD_ACPI_TABLE BDS Phase POST Code Table: Functionality Name (Include\ PostCode.h) BDS_ENTER_BDS...

  • Page 163

    Functionality Name (Include\ PostCode.h) BDS_CONNECT_STD_ERR BDS_CONNECT_USB_HC BDS_CONNECT_USB_BUS BDS_CONNECT_USB_DEVICE BDS_NO_CONSOLE_ACTION BDS_DISPLAY_LOGO_SYSTEM_INFO BDS_START_IDE_CONTROLLER BDS_START_SATA_CONTROLLER BDS_START_ISA_ACPI_CONTROLLER BDS_START_ISA_BUS BDS_START_ISA_FDD BDS_START_ISA_SEIRAL BDS_START_IDE_BUS BDS_START_AHCI_BUS BDS_CONNECT_LEGACY_ROM BDS_ENUMERATE_ALL_BOOT_OPTION BDS_END_OF_BOOT_SELECTION BDS_ENTER_SETUP BDS_ENTER_BOOT_MANAGER BDS_BOOT_DEVICE_SELECT BDS_EFI64_SHADOW_ALL_LEGACY_RO BDS_ACPI_S3SAVE BDS_READY_TO_BOOT_EVENT BDS_GO_LEGACY_BOOT BDS_GO_UEFI_BOOT BDS_LEGACY16_PREPARE_TO_BOOT BDS_LEGACY_BOOT_EVENT BDS_ENTER_LEGACY_16_BOOT BDS_RECOVERY_START_FLASH PostBDS POST Code Table Functionality Name (Include\ PostCode.h) POST_BDS_NO_BOOT_DEVICE POST_BDS_START_IMAGE...

  • Page 164

    S3 Functions POST Code Table Functionality Name (Include\ PostCode.h) POST_BDS_NO_BOOT_DEVICE POST_BDS_START_IMAGE POST_BDS_ENTER_INT19 POST_BDS_JUMP_BOOT_SECTOR ACPI Functions POST Code Table Functionality Name (Include\ PostCode.h) ASL_ENTER_S1 ASL_ENTER_S3 ASL_ENTER_S4 ASL_ENTER_S5 ASL_WAKEUP_S1 ASL_WAKEUP_S3 ASL_WAKEUP_S4 SMM Functions POST Code Table Functionality Name (Include\ PostCode.h) SMM_IDENTIFY_FLASH_DEVICE SMM_SMM_PLATFORM_INIT SMM_ACPI_ENABLE_START SMM_ACPI_ENABLE_END SMM_S1_SLEEP_CALLBACK...

  • Page 165: Jumper And Connector Locations, Top View

    Jumper and Connector Locations Top View Item Description JLVDS1 Connect to LED / CCFL Panel JSPK1 Connect to Right Speaker JSPK2 Connect to Left Speaker JKB1 Connect to Keyboard JTP1 Connect to Touch pad (FFC) JUSB2 Connect to Power USB board (FFC) JCR1 Connect to Card reader board...

  • Page 166

    Bottom View Item Description PJP2 Connect to Battery PJP1 DC-IN jack JDIMM1 / DDR3 Memory socket JDIMM2 JCRT1 Connect to external CRT JRJ45 RJ45 LAN JHDMI1 HDMI connector JMINI1 Connect to WLAN JUSB1 USB Connector JMIC1 Connect to external microphone Item Description JHDD1...

  • Page 167: Usb/b Board, Power Board

    USB/B Board Item JUSB1/JUSB2 Power Board ITEM DESCRIPTION LED1 For NEW75 ON/OFF LED LED2 For NEW85 ON/OFF LED LED3 For NEW95 ON/OFF LED LED4 For NEW75 MEDIA LED LED5 For NEW85 MEDIA LED LED6 For NEW95 MEDIA LED LED7 For NEW75 WWAN LED Chapter 5 Description USB Connector...

  • Page 168: Cr/b Board

    ITEM DESCRIPTION ITEM DESCRIPTION LED8 For NEW85 WLAN LED CR/B Board ITEM DESCRIPTION JREAD1 Card reader connector Chapter 5...

  • Page 169: Clearing Password Check And Bios Recovery, Clearing Password Check, Clear Cmos Jumper

    This section provides you with the standard operating procedures of clearing password and BIOS recovery for the Aspire 5251/5551G/5551. The machine provides one Hardware Open Gap on main board for clearing password check, and one Hotkey for enabling BIOS Recovery.

  • Page 170: Bios Recovery By Crisis Disk

    BIOS Recovery by Crisis Disk BIOS Recovery Boot Block: BIOS Recovery Boot Block is a special block of BIOS. It is used to boot up the system with minimum BIOS initialization. Users can enable this feature to restore the BIOS firmware to a successful one once the previous BIOS flashing process failed.

  • Page 171: Fru (field Replaceable Unit) List

    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 Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines.

  • Page 172: Aspire 5251/5551g/5551 Exploded Diagrams, Main Assembly

    Aspire 5251/5551G/5551 Exploded Diagrams Main Assembly Description Acer P/N Keyboard Upper Cover Mainboard USB Board Card Reader Board Thermal Module Lower Cover Chapter 6...

  • Page 173: Base Assembly

    Base Assembly Chapter 6 Description Logic Lower Door 3G Door Lower Cover Acer P/N...

  • Page 174: Led Assembly

    LED Assembly Description Acer P/N LCD Bracket (L) LVDS Cable ANTENNA WLAN- MAIN Microphone Cable LCD Bezel LCD Bracket (R) LCD Panel ANTENNA WLAN- LCD Cover Chapter 6...

  • Page 175: Aspire 5251/5551g/5551 Fru List

    Aspire 5251/5551G/5551 FRU List Chapter 6...

  • Page 176: Screw List

    Screw List Chapter 6...

  • Page 177

    Chapter 6...

  • Page 178: Model Definition And Configuration, Aspire 5251

    Model Definition and Configuration Aspire 5251 Model Acer Part No AS5251- LX.PWJ02.005 1202G25Mn AS5251- LX.PWJ02.004 1202G16Mn AS5251- LX.PWJ02.003 1203G16Mn AS5251- LX.PWJ02.002 1203G25Mn AS5251- LX.PWJ02.001 1202G25Mn AS5251- S2.PWJ02.001 1202G25Mn AS5251- LX.PUX02.001 1202G25Mn AS5251- S2.PUX0C.001 N122G32M Model Acer Part No AS5251- LX.PWJ02.005...

  • Page 179

    Model Acer Part No AS5251- S2.PUX0C.001 N122G32Mn Model Acer Part No AS5251- LX.PWJ02.005 1202G25Mn AS5251- LX.PWJ02.004 1202G16Mn AS5251- LX.PWJ02.003 1203G16Mn AS5251- LX.PWJ02.002 1203G25Mn AS5251- LX.PWJ02.001 1202G25Mn AS5251- S2.PWJ02.001 1202G25Mn AS5251- LX.PUX02.001 1202G25Mn AS5251- S2.PUX0C.00 N122G32M Model Acer Part No AS5251- LX.PWJ02.005...

  • Page 180: Aspire 5551g

    Aspire 5551G Model Acer Part No AS5551G- LX.PUU02.02 N834G50Mn AS5551G- LX.PUU02.02 N834G50Mn AS5551G- LX.PUU01.00 N834G50Mn AS5551G- LX.PUU01.00 N832G32Mn AS5551G- LX.PUU01.00 N834G32Mi AS5551G- LX.PUU01.00 N832G50Mn AS5551G- LX.PUU02.01 N834G50Mn AS5551G- LX.PUU02.01 P524G64Mn AS5551G- LX.PUU02.01 P324G32Mn AS5551G- LX.PUU02.01 P324G50Mn AS5551G- LX.PUU02.01 P324G32Mn AS5551G- LX.PUU02.01...

  • Page 181

    Model Acer Part No AS5551G- LX.PUU02.00 N534G50Mn AS5551G- LX.PUU02.00 N534G50Mn AS5551G- LX.PUU02.00 N534G32Mn AS5551G- LX.PUU02.00 N334G32Mn AS5551G- LX.PUU02.00 N334G50Mn AS5551G- S2.PUU02.00 N534G64Bn AS5551G- LX.PUS02.01 N834G64Mn AS5551G- LX.PUS02.01 P522G25Mn AS5551G- LX.PUS01.00 N833G32Mn AS5551G- LX.PUS02.01 N833G32Mn AS5551G- LX.PUS01.00 P524G32Mi AS5551G- LX.PUS01.00 P323G25Mi AS5551G- LX.PUS02.01...

  • Page 182

    Model Acer Part No AS5551G- LX.PUS02.00 P324G50Mn AS5551G- LX.PUS02.00 N834G50Mn AS5551G- S2.PUS0C.00 N534G32Mn AS5551G- LX.PUS02.00 N834G50Mn AS5551G- LX.PUS02.00 N834G50Mn AS5551G- LX.PUS02.00 P322G32Mn AS5551G- LX.PUS02.00 N534G32Mn AS5551G- LX.PUS02.00 N532G32Mn AS5551G- LX.PUS02.00 N334G32Mn AS5551G- LX.PUS02.00 N332G32Mn Model Acer Part No AS5551G- LX.PUU02.021...

  • Page 183

    Model Acer Part No AS5551G- LX.PUU02.016 P324G50Mn AS5551G- LX.PUU02.015 P324G32Mn AS5551G- LX.PUU02.012 P324G50Mn AS5551G- LX.PUU02.010 P324G32Mn AS5551G- LX.PUU02.009 P524G64Mn AS5551G- LX.PUU02.008 P524G50Mn AS5551G- LX.PUU02.007 P524G64Mn AS5551G- LX.PUU02.006 P524G50Mn AS5551G- LX.PUU02.005 N534G50Mn AS5551G- LX.PUU02.004 N534G50Mn AS5551G- LX.PUU02.003 N534G32Mn AS5551G- LX.PUU02.002 N334G32Mn AS5551G- LX.PUU02.001...

  • Page 184

    Model Acer Part No AS5551G- LX.PUS02.013 P524G50Mn AS5551G- LX.PUS02.012 N834G32Mn AS5551G- LX.PUS02.011 P524G50Mn AS5551G- LX.PUS01.001 N833G25Mi AS5551G- LX.PUS02.009 P324G50Mn AS5551G- LX.PUS02.008 N834G50Mn AS5551G- S2.PUS0C.00 N534G32Mn AS5551G- LX.PUS02.007 N834G50Mn AS5551G- LX.PUS02.006 N834G50Mn AS5551G- LX.PUS02.005 P322G32Mn AS5551G- LX.PUS02.004 N534G32Mn AS5551G- LX.PUS02.003 N532G32Mn AS5551G- LX.PUS02.002...

  • Page 185

    Model Acer Part No AS5551G- LX.PUU01.003 N832G32Mn AS5551G- LX.PUU01.001 N834G32Mi AS5551G- LX.PUU01.002 N832G50Mn AS5551G- LX.PUU02.019 N834G50Mn AS5551G- LX.PUU02.018 P524G64Mn AS5551G- LX.PUU02.017 P324G32Mn AS5551G- LX.PUU02.016 P324G50Mn AS5551G- LX.PUU02.015 P324G32Mn AS5551G- LX.PUU02.012 P324G50Mn AS5551G- LX.PUU02.010 P324G32Mn AS5551G- LX.PUU02.009 P524G64Mn AS5551G- LX.PUU02.008 P524G50Mn AS5551G- LX.PUU02.007...

  • Page 186

    Model Acer Part No AS5551G- LX.PUS01.003 P524G32Mi AS5551G- LX.PUS01.002 P323G25Mi AS5551G- LX.PUS02.014 N834G50Mn AS5551G- LX.PUS02.013 P524G50Mn AS5551G- LX.PUS02.012 N834G32Mn AS5551G- LX.PUS02.011 P524G50Mn AS5551G- LX.PUS01.001 N833G25Mi AS5551G- LX.PUS02.009 P324G50Mn AS5551G- LX.PUS02.008 N834G50Mn AS5551G- S2.PUS0C.00 N534G32Mn AS5551G- LX.PUS02.007 N834G50Mn AS5551G- LX.PUS02.006 N834G50Mn AS5551G- LX.PUS02.005...

  • Page 187

    Model Acer Part No AS5551G- LX.PUU01.002 N832G50Mn AS5551G- LX.PUU02.019 N834G50Mn AS5551G- LX.PUU02.018 P524G64Mn AS5551G- LX.PUU02.017 P324G32Mn AS5551G- LX.PUU02.016 P324G50Mn AS5551G- LX.PUU02.015 P324G32Mn AS5551G- LX.PUU02.012 P324G50Mn AS5551G- LX.PUU02.010 P324G32Mn AS5551G- LX.PUU02.009 P524G64Mn AS5551G- LX.PUU02.008 P524G50Mn AS5551G- LX.PUU02.007 P524G64Mn AS5551G- LX.PUU02.006 P524G50Mn AS5551G- LX.PUU02.005...

  • Page 188

    Model Acer Part No AS5551G- LX.PUS02.014 N834G50Mn AS5551G- LX.PUS02.013 P524G50Mn AS5551G- LX.PUS02.012 N834G32Mn AS5551G- LX.PUS02.011 P524G50Mn AS5551G- LX.PUS01.001 N833G25Mi AS5551G- LX.PUS02.009 P324G50Mn AS5551G- LX.PUS02.008 N834G50Mn AS5551G- S2.PUS0C.001 N534G32Mn AS5551G- LX.PUS02.007 N834G50Mn AS5551G- LX.PUS02.006 N834G50Mn AS5551G- LX.PUS02.005 P322G32Mn AS5551G- LX.PUS02.004 N534G32Mn AS5551G- LX.PUS02.003...

  • Page 189: Aspire 5551

    Aspire 5551 Model Acer Part No AS5551- LX.PWK02.011 P324G50Mn AS5551- LX.PWK02.010 P323G32Mn AS5551- LX.PWK02.009 P323G32Mn AS5551- LX.PWK02.008 P323G32Mn AS5551- LX.PWK02.007 P323G32Mn AS5551- LX.PWK02.006 P323G32Mn AS5551- LX.PWK02.005 P324G32Mn AS5551- LX.PWK02.004 P524G50Mn AS5551- LX.PWK02.003 P323G32Mn AS5551- LX.PWK02.001 P324G64Mn AS5551- LX.PWK02.002 P323G32Mn AS5551- S2.PWK02.001...

  • Page 190

    Model Acer Part No AS5551- LX.PTQ02.021 N832G32Mn AS5551- LX.PTQ01.001 P323G25Mi AS5551- LX.PTQ0C.002 P321G16Mn AS5551- LX.PTQ0C.001 P321G16Mn AS5551- LX.PTQ02.020 N834G50Mn AS5551- LX.PTQ02.019 P323G32Mn AS5551- LX.PTQ02.018 P524G50Mn AS5551- LX.PTQ02.017 P323G32Mn AS5551- S2.PTQ0C.001 N332G16Mn AS5551- LX.PTQ02.016 N833G25Mn AS5551- LX.PTQ02.015 N834G32Mn AS5551- LX.PTQ02.014 N833G32Mn AS5551- LX.PTQ02.013...

  • Page 191

    Model Acer Part No AS5551- LX.PTQ02.004 N532G32Mn AS5551- LX.PTQ02.003 N534G32Mn AS5551- LX.PTQ02.002 N334G32Mn AS5551- LX.PTQ02.001 N332G32Mn Model Acer Part No AS5551- LX.PWK02.011 P324G50Mn AS5551- LX.PWK02.010 P323G32Mn AS5551- LX.PWK02.009 P323G32Mn AS5551- LX.PWK02.008 P323G32Mn AS5551- LX.PWK02.007 P323G32Mn AS5551- LX.PWK02.006 P323G32Mn AS5551- LX.PWK02.005...

  • Page 192

    Model Acer Part No AS5551- LX.PTQ02.021 N832G32Mn AS5551- LX.PTQ01.001 P323G25Mi AS5551- LX.PTQ0C.002 P321G16Mn AS5551- LX.PTQ0C.001 P321G16Mn AS5551- LX.PTQ02.020 N834G50Mn AS5551- LX.PTQ02.019 P323G32Mn AS5551- LX.PTQ02.018 P524G50Mn AS5551- LX.PTQ02.017 P323G32Mn AS5551- S2.PTQ0C.001 N332G16Mn AS5551- LX.PTQ02.016 N833G25Mn AS5551- LX.PTQ02.015 N834G32Mn AS5551- LX.PTQ02.014 N833G32Mn AS5551- LX.PTQ02.013...

  • Page 193

    Model Acer Part No AS5551- LX.PWK02.009 P323G32Mn AS5551- LX.PWK02.008 P323G32Mn AS5551- LX.PWK02.007 P323G32Mn AS5551- LX.PWK02.006 P323G32Mn AS5551- LX.PWK02.005 P324G32Mn AS5551- LX.PWK02.004 P524G50Mn AS5551- LX.PWK02.003 P323G32Mn AS5551- LX.PWK02.001 P324G64Mn AS5551- LX.PWK02.002 P323G32Mn AS5551- S2.PWK02.001 P324G50Mn AS5551- LX.PWP01.002 P52_BR3G25 M_brn AS5551- LX.PWP01.001...

  • Page 194

    Model Acer Part No AS5551- LX.PTQ02.016 N833G25Mn AS5551- LX.PTQ02.015 N834G32Mn AS5551- LX.PTQ02.014 N833G32Mn AS5551- LX.PTQ02.013 P324G25Mn AS5551- LX.PTQ02.012 P322G32Mn AS5551- LX.PTQ02.009 P322G25Mn AS5551- LX.PTQ02.007 P324G50Mn AS5551- LX.PTQ02.006 P324G32Mn AS5551- LX.PTQ02.004 N532G32Mn AS5551- LX.PTQ02.003 N534G32Mn AS5551- LX.PTQ02.002 N334G32Mn AS5551- LX.PTQ02.001 N332G32Mn...

  • Page 195

    Model Acer Part No AS5551- LX.PWK02.002 P323G32Mn AS5551- S2.PWK02.001 P324G50Mn AS5551- LX.PWP01.002 P52_BR3G2 5M_brn AS5551- LX.PWP01.001 1_BR3G25M _brn AS5551- S2.PWP02.001 1_BR2G25M _brn AS5551- LX.PTQ02.022 P522G25Mn AS5551- LX.PTQ02.021 N832G32Mn AS5551- LX.PTQ01.001 P323G25Mi AS5551- LX.PTQ0C.002 P321G16Mn AS5551- LX.PTQ0C.001 P321G16Mn AS5551- LX.PTQ02.020 N834G50Mn AS5551- LX.PTQ02.019...

  • Page 196

    Model Acer Part No AS5551- LX.PTQ02.004 N532G32Mn AS5551- LX.PTQ02.003 N534G32Mn AS5551- LX.PTQ02.002 N334G32Mn AS5551- LX.PTQ02.001 N332G32Mn Appendix A Media Extra SW1 Processor NSM8XS McAfee NSM8XS McAfee NSM8XS McAfee NSM8XS McAfee Wireless Card Reader LAN1 5 in 1-Build in 3rd WiFi...

  • Page 197: Test Compatible Components

    Appendix B Test Compatible Components This computer’s compatibility is tested and verified by Acer’s internal testing department. All of its system ® functions are tested under Windows 7 environment. Refer to the following lists for components, adapter cards, and peripherals which have passed these tests.

  • Page 198

    Microsoft Windows ® Vendor Adapter 10001081 DELTA 10001023 LITE-ON 60002015 HIPRO 10001081 DELTA 65W_BR 10001023 LITE-ON 65W_BR 10001023 LITE-ON 65W_BR 10001081 DELTA 10001023 LITE-ON 60002015 HIPRO Battery 60001921 SANYO 6CELL2.2 10001063 SONY 6CELL2.2 60001535 6CELL2.2 PANASONIC 60013145 6CELL2.2 SAMSUNG SDI 60002162 SIMPLO 6CELL2.2 60002162 SIMPLO...

  • Page 199

    Vendor 22554573 AMD AAN330 22554573 AMD AAP320 60002168 AMDISS AAP320_BR 60002168 AMDISS AMDV120 22554573 AMD APN830 22554573 AMD APN930 22554573 AMD ATN530 22554573 AMD ATP520 60002168 AMDISS ATP520_BR 60002036 N160GB5.4KS SEAGATE 60002036 N160GB5.4KS SEAGATE 60001922 N160GB5.4KS TOSHIBA DIGI 60002005 HGST N160GB5.4KS 60001994 WD N160GB5.4KS...

  • Page 200

    Vendor 60002215 N250GB5.4KS_BR SAMSUNG 60002215 N250GB5.4KS_BR SAMSUNG 60002036 N320GB5.4KS SEAGATE 60002036 N320GB5.4KS SEAGATE 60001922 N320GB5.4KS TOSHIBA DIGI 60002005 HGST N320GB5.4KS 60001994 WD N320GB5.4KS 60002005 HGST N320GB5.4KS_BR 60002215 N320GB5.4KS_BR SAMSUNG 60002036 N500GB5.4KS SEAGATE 60002036 N500GB5.4KS SEAGATE 60001922 N500GB5.4KS TOSHIBA DIGI 60002005 HGST N500GB5.4KS 60001994 WD N500GB5.4KS...

  • Page 201

    Vendor 10001038 CMO NLED15.6WXGAG 10001022 NLED15.6WXGAG INNOLUX 60003316 AUO NLED15.6WXGAG_B 60002215 NLED15.6WXGAG_B SAMSUNG 16081942 MICRON SO1GBIII10 60004668 ELPIDA SO1GBIII10 60002215 SO1GBIII10 SAMSUNG 60002045 HYNIX SO1GBIII10 60024207 SO1GBIII13 KINGSTON 60004668 ELPIDA SO1GBIII13 60002215 SO1GBIII13 SAMSUNG 60002045 HYNIX SO1GBIII13 60002215 SO1GBIII13_BR SAMSUNG 60002045 HYNIX SO1GBIII13_BR 16081942 MICRON...

  • Page 202

    VRAM SAMSUNG Graphic DDRIII 800 1Gb K4W1G1646E-HC12 LF VRAM HYNIX Graphic DDRIII 800 1Gb H5TQ1G63BFR-12C LF AMD RS880M w/ HDCP EEPROM AMD SB820M Keyboard ACER AC7T_A10B AC7T Internal 17 Standard Black NONE Y2010 Acer Texture Broadcom BCM57780 Description Appendix B...

  • Page 203

    Vendor WiFi Antenna 10000105 WNC PIFA Audio Codec 10004786 ALC272X REALTEK A cover 10000981 MISC Black IMR 10000981 MISC Silver IMR B cover 9999995 ONE TIME Mirror VENDER 9999995 ONE TIME Mirror w/Camera VENDER Bluetooth 23707801 BT 2.1 FOXCONN TW 23707801 BT 2.1 FOXCONN TW...

  • Page 204

    Vendor 23707801 3rd WiFi BG FOXCONN TW 23707801 3rd WiFi BG FOXCONN TW Type Foxconn Wireless LAN Broadcom 4312H BG (HM) Foxconn Wirelss LAN Atheros HB95BG (HM) T77H121.10 Description Appendix B...

  • Page 205: Online Support Information

    This section describes online technical support services available to help you repair your Acer Systems. If you are a distributor, dealer, ASP or TPM, please refer your technical queries to your local Acer branch office. Acer Branch Offices and Regional Business Units may access our website. However some information sources will require a user i.d.

  • Page 206

    Appendix C...

  • Page 207: Index

    AFLASH Utility Antennas 94, 96 Removing Replacing Battery Replacing Battery Pack Removing BIOS ROM type vendor 25–33 BIOS Utility Advanced Boot Exit Navigating Onboard Device Configuration Power Save and Exit Security System Security Board Layout Top View brightness hotkeys Camera Module Removing 101, 103, 104, 106 Replacing...

  • Page 208

    LCD Brackets Removing Replacing LCD Cable Replacing LCD Failure LCD Module Disassembly Flowchart LCD Module Reassembly Procedure LCD Panel Removing Replacing Left Speaker Module Removing Replacing Main Unit Disassembly Flowchart Mainboard 72, 73, 75, 76 Removing Replacing media access on indicator Memory Replacing Memory Check...

  • Page 209

    Removing Replacing utility 25–33 BIOS Windows 2000 Environment Test Wireless Function Failure WLAN Module Removing Replacing...

Comments to this Manuals

Symbols: 0

Latest comments:

  • Russell franklin Jul 07, 2014 08:12:
    I CANT FIND IN THIS MANUAL A SECTION FOR
    TROUBL​E SHOOTING PROBLEMS . IF ANYONE KNOWS
    WHY MY ACER ASPIRE 5251 DOESNT POWER ON
    PLEASE HELP . THE AMBER BATTERY LIGHT JUST
    COMES ON A FEW SECONDS THEN GOES OUT EVERY
    THRE​E SECONDS OR SO CONSTANTLY​. DONT KNOW
    IF BATTERY BAD OR ADAPTER PLUG .
    RFJR@cable​one.net

    THANKS YOU , RUSSELL
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