Acer Aspire One AO725 Netbook Service Guide
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... 1-5 Display 1-5 Audio 1-5 Graphics 1-6 Storage 1-6 Webcam 1-6 Wireless and Networking 1-7 Privacy Control 1-7 Dimension and Weight 1-7 Power Adapter and Battery 1-7 Input and Control 1-8 Input and Output (I/O) Ports 1-8 Environment 1-8 Software 1-9 Eco-compliance 1-10 Optional and Accessories 1-10 Warranty 1-10 Notebook Tour 1-11 Touchpad Basics 1-18 Using the Keyboard 1-19 Windows Keys 1-20 Hotkeys 1-21 System Block Diagram 1-23 Specification Tables 1-24 Computer specifications 1-24 System Board Major Chips 1-25 Processor 1-25 Processor Specifications 1-25 CPU Fan...
... 1-5 Display 1-5 Audio 1-5 Graphics 1-6 Storage 1-6 Webcam 1-6 Wireless and Networking 1-7 Privacy Control 1-7 Dimension and Weight 1-7 Power Adapter and Battery 1-7 Input and Control 1-8 Input and Output (I/O) Ports 1-8 Environment 1-8 Software 1-9 Eco-compliance 1-10 Optional and Accessories 1-10 Warranty 1-10 Notebook Tour 1-11 Touchpad Basics 1-18 Using the Keyboard 1-19 Windows Keys 1-20 Hotkeys 1-21 System Block Diagram 1-23 Specification Tables 1-24 Computer specifications 1-24 System Board Major Chips 1-25 Processor 1-25 Processor Specifications 1-25 CPU Fan...
Acer Aspire One AO725 Netbook Service Guide
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... Audio Codec and Amplifier (Continued 1-36 Audio Interface 1-36 1.0M HD Camera 1-37 VRAM (not available in this model 1-37 USB Port 1-37 HDMI Port 1-38 Battery 1-38 AC Adapter 1-38 System Power Management 1-39 Card Reader 1-39 System LED Indicator 1-40 System DMA Specification 1-40 System Interrupt Specification 1-41 System I/O Address Map 1-46 Memory Address Map 1-48 CHAPTER 2 System Utilities BIOS Setup Utility 2-3 Navigating the BIOS Utility 2-3 BIOS 2-4 Information 2-4 Main 2-6 Security 2-8 Boot 2-12 Exit 2-13 BIOS Flash Utilities...
... Audio Codec and Amplifier (Continued 1-36 Audio Interface 1-36 1.0M HD Camera 1-37 VRAM (not available in this model 1-37 USB Port 1-37 HDMI Port 1-38 Battery 1-38 AC Adapter 1-38 System Power Management 1-39 Card Reader 1-39 System LED Indicator 1-40 System DMA Specification 1-40 System Interrupt Specification 1-41 System I/O Address Map 1-46 Memory Address Map 1-48 CHAPTER 2 System Utilities BIOS Setup Utility 2-3 Navigating the BIOS Utility 2-3 BIOS 2-4 Information 2-4 Main 2-6 Security 2-8 Boot 2-12 Exit 2-13 BIOS Flash Utilities...
Acer Aspire One AO725 Netbook Service Guide
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...DMITools 2-22 Using UUIDTools 2-26 Using the LAN MAC EEPROM Utility 2-28 Crisis Disk Recovery 2-29 CHAPTER 3 Machine Maintenance Procedures Introduction 3-5 General Information 3-5 Recommended Equipment 3-5 Pre-disassembly Instructions 3-6 Disassembly Process 3-7 External Module Disassembly Process 3-8 External Module Disassembly Flowchart 3-8 Dummy Card Removal 3-9 Battery Pack Removal 3-10 Base Door Removal 3-11 WLAN (Wireless Local Area Network) Module Removal . . . 3-12 DIMM (Dual In-line Memory Module) Module Removal . . . 3-14 HDD (Hard Disk Drive) Module Removal 3-15 Main...
...DMITools 2-22 Using UUIDTools 2-26 Using the LAN MAC EEPROM Utility 2-28 Crisis Disk Recovery 2-29 CHAPTER 3 Machine Maintenance Procedures Introduction 3-5 General Information 3-5 Recommended Equipment 3-5 Pre-disassembly Instructions 3-6 Disassembly Process 3-7 External Module Disassembly Process 3-8 External Module Disassembly Flowchart 3-8 Dummy Card Removal 3-9 Battery Pack Removal 3-10 Base Door Removal 3-11 WLAN (Wireless Local Area Network) Module Removal . . . 3-12 DIMM (Dual In-line Memory Module) Module Removal . . . 3-14 HDD (Hard Disk Drive) Module Removal 3-15 Main...
Acer Aspire One AO725 Netbook Service Guide
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No Display Issues 4-5 LCD Picture Failure 4-7 Internal Keyboard Failure 4-8 Touchpad Failure 4-9 Internal Speaker Failure 4-10 Internal Microphone Failure 4-12 USB Failure 4-13 Other Functions Failure 4-14 Intermittent Problems 4-15 Undetermined Problems 4-15 Post Codes 4-16 CHAPTER 5 Jumper and Connector Locations Mainboard Jumper and Connector Locations 5-3 Clearing Password Check and BIOS Recovery 5-5 Clearing Password Check 5-5 BIOS Recovery by Crisis Disk 5-7 CHAPTER 6 FRU (Field Replaceable Unit) List Exploded Diagrams 6-4 FRU List 6-8 Screw List 6-20 CHAPTER 7 Model ...
No Display Issues 4-5 LCD Picture Failure 4-7 Internal Keyboard Failure 4-8 Touchpad Failure 4-9 Internal Speaker Failure 4-10 Internal Microphone Failure 4-12 USB Failure 4-13 Other Functions Failure 4-14 Intermittent Problems 4-15 Undetermined Problems 4-15 Post Codes 4-16 CHAPTER 5 Jumper and Connector Locations Mainboard Jumper and Connector Locations 5-3 Clearing Password Check and BIOS Recovery 5-5 Clearing Password Check 5-5 BIOS Recovery by Crisis Disk 5-7 CHAPTER 6 FRU (Field Replaceable Unit) List Exploded Diagrams 6-4 FRU List 6-8 Screw List 6-20 CHAPTER 7 Model ...
Acer Aspire One AO725 Netbook Service Guide
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... 1-5 Display 1-5 Audio 1-5 Graphics 1-6 Storage 1-6 Webcam 1-6 Wireless and Networking 1-7 Privacy Control 1-7 Dimension and Weight 1-7 Power Adapter and Battery 1-7 Input and Control 1-8 Input and Output (I/O) Ports 1-8 Environment 1-8 Software 1-9 Eco-compliance 1-10 Optional and Accessories 1-10 Warranty 1-10 Notebook Tour 1-11 Touchpad Basics 1-18 Using the Keyboard 1-19 Windows Keys 1-20 Hotkeys 1-21 System Block Diagram 1-23 Specification Tables 1-24 Computer specifications 1-24 System Board Major Chips 1-25 Processor 1-25 Processor Specifications 1-25 CPU Fan...
... 1-5 Display 1-5 Audio 1-5 Graphics 1-6 Storage 1-6 Webcam 1-6 Wireless and Networking 1-7 Privacy Control 1-7 Dimension and Weight 1-7 Power Adapter and Battery 1-7 Input and Control 1-8 Input and Output (I/O) Ports 1-8 Environment 1-8 Software 1-9 Eco-compliance 1-10 Optional and Accessories 1-10 Warranty 1-10 Notebook Tour 1-11 Touchpad Basics 1-18 Using the Keyboard 1-19 Windows Keys 1-20 Hotkeys 1-21 System Block Diagram 1-23 Specification Tables 1-24 Computer specifications 1-24 System Board Major Chips 1-25 Processor 1-25 Processor Specifications 1-25 CPU Fan...
Acer Aspire One AO725 Netbook Service Guide
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... LAN support PCI Express 2.0 support Privacy Control 0 BIOS user, supervisor, HDD passwords Kensington lock slot Dimension and Weight 0 Dimensions: 285 (W) x 202 (D) x 23.5 (H) mm (11.22 x 7.95 x 0.925 inches) Weight: 1.20 kg (2.65 lbs.) with 4-cell battery pack Power Adapter and Battery 0 Product Safety Electric Appliance and Materials (PSE) certified for battery pack Power adapter 2-pin 40W Acer...
... LAN support PCI Express 2.0 support Privacy Control 0 BIOS user, supervisor, HDD passwords Kensington lock slot Dimension and Weight 0 Dimensions: 285 (W) x 202 (D) x 23.5 (H) mm (11.22 x 7.95 x 0.925 inches) Weight: 1.20 kg (2.65 lbs.) with 4-cell battery pack Power Adapter and Battery 0 Product Safety Electric Appliance and Materials (PSE) certified for battery pack Power adapter 2-pin 40W Acer...
Acer Aspire One AO725 Netbook Service Guide
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... Table 1-1. Opened Front View # Icon Item 1 Microphone 2 Display screen Description Internal microphone for video communication. Also called Liquid-Crystal Display (LCD), displays computer output (configuration may vary by model). 3 Power button Turns the computer on and off. 4 Keyboard For entering data into your computer 5 Touchpad Touch-sensitive pointing device which functions like a computer mouse. 6 Click button The left and right buttons function like the left and right mouse buttons. 7 Integrated webcam Web camera for sound recording. Notebook Tour 0 Figure...
... Table 1-1. Opened Front View # Icon Item 1 Microphone 2 Display screen Description Internal microphone for video communication. Also called Liquid-Crystal Display (LCD), displays computer output (configuration may vary by model). 3 Power button Turns the computer on and off. 4 Keyboard For entering data into your computer 5 Touchpad Touch-sensitive pointing device which functions like a computer mouse. 6 Click button The left and right buttons function like the left and right mouse buttons. 7 Integrated webcam Web camera for sound recording. Notebook Tour 0 Figure...
Acer Aspire One AO725 Netbook Service Guide
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... screen backlight off . + + Brightness up Brightness down Increases the screen brightness. Hot key Icon Function Description + Communication Enables/disables the computer's communication devices. + + + + Sleep Display toggle Screen blank Touchpad toggle Puts the computer in the hockey combination. Turns the internal touchpad on and off. + Speaker toggle Turns the speakers on and off to save power. Keyboard Hotkeys To activate hotkeys, press and hold the key before pressing the other key in Sleep mode. Hardware Specifications and Configurations...
... screen backlight off . + + Brightness up Brightness down Increases the screen brightness. Hot key Icon Function Description + Communication Enables/disables the computer's communication devices. + + + + Sleep Display toggle Screen blank Touchpad toggle Puts the computer in the hockey combination. Turns the internal touchpad on and off. + Speaker toggle Turns the speakers on and off to save power. Keyboard Hotkeys To activate hotkeys, press and hold the key before pressing the other key in Sleep mode. Hardware Specifications and Configurations...
Acer Aspire One AO725 Netbook Service Guide
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...) OV9726 CMOS sensor Hynix 162 CMOS sensor Automatic Exposure Control (AE), Automatic While Balance (AWB) and Automatic Gain Control (AGC) Pixel Resolution: 1280 x 720 (HD) VRAM (not available in this model) Item Vendor & Model name Memory size Interface Specification USB Port Item USB compliance level EHCI Number of USB port(s) Location Output Current USB 2.0-compliant 2 right side 1.05A Specification USB 3.0-compliant 2 1 left side 2.0A Hardware Specifications and Configurations 1-37
...) OV9726 CMOS sensor Hynix 162 CMOS sensor Automatic Exposure Control (AE), Automatic While Balance (AWB) and Automatic Gain Control (AGC) Pixel Resolution: 1280 x 720 (HD) VRAM (not available in this model) Item Vendor & Model name Memory size Interface Specification USB Port Item USB compliance level EHCI Number of USB port(s) Location Output Current USB 2.0-compliant 2 right side 1.05A Specification USB 3.0-compliant 2 1 left side 2.0A Hardware Specifications and Configurations 1-37
Acer Aspire One AO725 Netbook Service Guide
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...; CPU set power down VGA Suspend PCMCIA Suspend Audio Power Down Hard Disk Power Down Super I/O Low Power mode Also called Hibernation Mode. System saves all types memory cards Supports both Windows and Mac OS Hardware Specifications and Configurations 1-39 OS initiated shutdown. Individual devices such as the CPU and hard disc may be power managed in -1 card reader controller, supporting: Secure Digital™ (SD) Card up to version 3.0, SDHC, SDXC, Mini-SD, Micro-SD (T-Flash...
...; CPU set power down VGA Suspend PCMCIA Suspend Audio Power Down Hard Disk Power Down Super I/O Low Power mode Also called Hibernation Mode. System saves all types memory cards Supports both Windows and Mac OS Hardware Specifications and Configurations 1-39 OS initiated shutdown. Individual devices such as the CPU and hard disc may be power managed in -1 card reader controller, supporting: Secure Digital™ (SD) Card up to version 3.0, SDHC, SDXC, Mini-SD, Micro-SD (T-Flash...
Acer Aspire One AO725 Netbook Service Guide
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... a hardware configuration program built into a computer's BIOS (Basic Input/Output System). Refer to Enabled. To change the boot device without entering BIOS Setup Utility, set to Disabled. To change the boot device without entering the BIOS SETUP, press F12 during POST (power-on self-test) when prompted at the bottom of the screen. Read parameter help is found in square brackets open the DIMM door open the DIMM door[ ]. use the up and down arrow keys...
... a hardware configuration program built into a computer's BIOS (Basic Input/Output System). Refer to Enabled. To change the boot device without entering BIOS Setup Utility, set to Disabled. To change the boot device without entering the BIOS SETUP, press F12 during POST (power-on self-test) when prompted at the bottom of the screen. Read parameter help is found in square brackets open the DIMM door open the DIMM door[ ]. use the up and down arrow keys...
Acer Aspire One AO725 Netbook Service Guide
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If the password entered does not match the current password, the screen shows the Setup Warning dialog. (Figure 2-8) Figure 2-8. Setup Warning: Invalid Password If new password and confirm new password strings do not match, the Setup Warning dialog appears (Figure 2-9). The password setting is complete after the user presses Enter. Figure 2-9. Setup Warning: Passwords Do Not Match System Utilities 2-11
If the password entered does not match the current password, the screen shows the Setup Warning dialog. (Figure 2-8) Figure 2-8. Setup Warning: Invalid Password If new password and confirm new password strings do not match, the Setup Warning dialog appears (Figure 2-9). The password setting is complete after the user presses Enter. Figure 2-9. Setup Warning: Passwords Do Not Match System Utilities 2-11
Acer Aspire One AO725 Netbook Service Guide
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... BIOS utility and save your changes. Exit Discarding Changes Exit BIOS utility without exiting. Exit 0 The Exit tab allows users to save or discard changes and quit the BIOS Setup Utility. 3.7 Exit Saving Changes Exit Discarding Changes Load Setup Defaults Discard Changes Save Changes Item Specific Help Exit System Setup and save setup item changes to system. BIOS Exit Table 2-4 describes the parameters in Figure 2-11. Load Setup Defaults Load setup default values for all setup items. Discard Changes...
... BIOS utility and save your changes. Exit Discarding Changes Exit BIOS utility without exiting. Exit 0 The Exit tab allows users to save or discard changes and quit the BIOS Setup Utility. 3.7 Exit Saving Changes Exit Discarding Changes Load Setup Defaults Discard Changes Save Changes Item Specific Help Exit System Setup and save setup item changes to system. BIOS Exit Table 2-4 describes the parameters in Figure 2-11. Load Setup Defaults Load setup default values for all setup items. Discard Changes...
Acer Aspire One AO725 Netbook Service Guide
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... set to Enabled, then Crisis Recovery disc must be cleared by the Crisis Disk Recovery procedure. (The default parameter of Password on Boot' is unable to Disabled. 1. Press any key to do this. is displayed, supervisor password has been removed. 2-20 System Utilities Boot to Enabled, the BIOS password can only be unlocked. When message Clear the SU Pws completely is displayed on Boot is entered three times, the message System will halt! ! CAUTION: If BIOS Security menu item Password...
... set to Enabled, then Crisis Recovery disc must be cleared by the Crisis Disk Recovery procedure. (The default parameter of Password on Boot' is unable to Disabled. 1. Press any key to do this. is displayed, supervisor password has been removed. 2-20 System Utilities Boot to Enabled, the BIOS password can only be unlocked. When message Clear the SU Pws completely is displayed on Boot is entered three times, the message System will halt! ! CAUTION: If BIOS Security menu item Password...
Acer Aspire One AO725 Netbook Service Guide
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... connected? DDR RAM module Replace M/B CPU thermal module well No screw? START Power On? No Display Issues 0 If the Display does not work, perform the following : 1. Make sure the computer has power by removing the power cable and battery. Screw it well Replace Ext. No Display Issue No POST or Video 0 If the POST or video does not appear, perform the following : Replace LCD panel/ No LCD cable LCD module OK? Switching between the internal Troubleshooting 4-5 Connect an external monitor to Power...
... connected? DDR RAM module Replace M/B CPU thermal module well No screw? START Power On? No Display Issues 0 If the Display does not work, perform the following : 1. Make sure the computer has power by removing the power cable and battery. Screw it well Replace Ext. No Display Issue No POST or Video 0 If the POST or video does not appear, perform the following : Replace LCD panel/ No LCD cable LCD module OK? Switching between the internal Troubleshooting 4-5 Connect an external monitor to Power...
Acer Aspire One AO725 Netbook Service Guide
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... control/mouse wheel zoom feature in the application. If desktop display resolution is not running on -screen prompts. 9. Check the display resolution is correctly configured: Minimize or close all external devices including port replicators or docking stations. Refer to Disassembly Process. 3. Refer to the User Manual for instructions on the screen), the LCD is faulty and should be replaced. Refer to Online Support Information. 4-6 Troubleshooting...
... control/mouse wheel zoom feature in the application. If desktop display resolution is not running on -screen prompts. 9. Check the display resolution is correctly configured: Minimize or close all external devices including port replicators or docking stations. Refer to Disassembly Process. 3. Refer to the User Manual for instructions on the screen), the LCD is faulty and should be replaced. Refer to Online Support Information. 4-6 Troubleshooting...
Acer Aspire One AO725 Netbook Service Guide
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..., replace the FRU. Remove or disconnect all attached devices are supported by a variety of the failure is found , replace the FRU. 3. Determine if the problem has changed. 6. If the problem remains, replace the following devices: Non-Acer devices Printer, mouse, and other external devices Battery pack Hard disk drive DIMM BD/CD-ROM/Diskette drive Module PC Cards...
..., replace the FRU. Remove or disconnect all attached devices are supported by a variety of the failure is found , replace the FRU. 3. Determine if the problem has changed. 6. If the problem remains, replace the following devices: Non-Acer devices Printer, mouse, and other external devices Battery pack Hard disk drive DIMM BD/CD-ROM/Diskette drive Module PC Cards...
Acer Aspire One AO725 Netbook Service Guide
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... switch to Protected mode Patching CPU microcode Setup Cache as RAM PCIE MMIO Base Address initial CPU Generic MSR initialization Setup CPU speed Cache as RAM test Tune CPU frequency ratio to maximum level Setup BIOS ROM cache 4-16 Troubleshooting The components of the POST code table includes: SEC phase, PEI phase, DXE phase, BDS phase, CSM functions, S3 functions and ACPI functions...
... switch to Protected mode Patching CPU microcode Setup Cache as RAM PCIE MMIO Base Address initial CPU Generic MSR initialization Setup CPU speed Cache as RAM test Tune CPU frequency ratio to maximum level Setup BIOS ROM cache 4-16 Troubleshooting The components of the POST code table includes: SEC phase, PEI phase, DXE phase, BDS phase, CSM functions, S3 functions and ACPI functions...
Acer Aspire One AO725 Netbook Service Guide
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... 13 14 15 16 17 18 Description Enter BDS entry Install Hotkey service ASF Initialization PCI enumeration PCI resource assign complete PCI enumeration complete Keyboard Controller, Keyboard and Mouse initialization Video device initialization Error report device initialization Troubleshooting 4-19 Table 4-5. (Continued)DXE Phase POST Code Table Functionality Name (Include\ PostCode.h) Phase Post Code Description DXE_SMM_CONTROLER_INIT* DXE 54 Setup SMM Control service DXE_LEGACY_INTERRUPT* DXE 55 Setup Legacy Interrupt service DXE_RELOCATE_SMBASE DXE 56 Relocate SMM BASE...
... 13 14 15 16 17 18 Description Enter BDS entry Install Hotkey service ASF Initialization PCI enumeration PCI resource assign complete PCI enumeration complete Keyboard Controller, Keyboard and Mouse initialization Video device initialization Error report device initialization Troubleshooting 4-19 Table 4-5. (Continued)DXE Phase POST Code Table Functionality Name (Include\ PostCode.h) Phase Post Code Description DXE_SMM_CONTROLER_INIT* DXE 54 Setup SMM Control service DXE_LEGACY_INTERRUPT* DXE 55 Setup Legacy Interrupt service DXE_RELOCATE_SMBASE DXE 56 Relocate SMM BASE...
Acer Aspire One AO725 Netbook Service Guide
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...of clearing password and BIOS recovery for enabling BIOS Recovery. Press [ key before Acer logo disappears (Figure 5-3). Keyboard Key Location 3. Steps for Clearing BIOS Password Check 0 If users set BIOS Password (Supervisor Password and/or User Password) for clearing BIOS Password (Supervisor Password and User Password). Figure 5-3. Select Boot Option item ' USB HDD' as hightlighted in Figure 5-4 and press Enter to BIOS Setup menu. The machine provides one Hardware Open Gap on main board for clearing password check, and one hot key for the Aspire One 725. Clearing Password...
...of clearing password and BIOS recovery for enabling BIOS Recovery. Press [ key before Acer logo disappears (Figure 5-3). Keyboard Key Location 3. Steps for Clearing BIOS Password Check 0 If users set BIOS Password (Supervisor Password and/or User Password) for clearing BIOS Password (Supervisor Password and User Password). Figure 5-3. Select Boot Option item ' USB HDD' as hightlighted in Figure 5-4 and press Enter to BIOS Setup menu. The machine provides one Hardware Open Gap on main board for clearing password check, and one hot key for the Aspire One 725. Clearing Password...
