Aspire 7720 / 7720G Service Guide
Page 80
See the following : T Replace the System board. If the power-on page 88. T If the problem is within the range, do the following figure: Pin 1: +19 to the next ... cable from the power adapter does not always indicate a defect. 3. If the voltage is not corrected, see "Check the Battery Pack" on page 75. 74 Chapter 4 T If the voltage is not correct, replace the power adapter. 2. NOTE: An audible noise from the computer and measure the output voltage at the plug of...
See the following : T Replace the System board. If the power-on page 88. T If the problem is within the range, do the following figure: Pin 1: +19 to the next ... cable from the power adapter does not always indicate a defect. 3. If the voltage is not corrected, see "Check the Battery Pack" on page 75. 74 Chapter 4 T If the voltage is not correct, replace the power adapter. 2. NOTE: An audible noise from the computer and measure the output voltage at the plug of...
Aspire 7720 / 7720G Service Guide
Page 81
... This symptom is applied to the touchpad pointer. If the charge indicator still does not light up , replace the battery pack. Replace the touchpad. 3. To check the battery charge operation, use the touchpad, the pointer drifts on recharging or discharging. After you identify first the ... If the voltage is on the screen for a short time. Reconnect the touchpad cables. 2. Replace the system board. Power off the computer. 2. Check the Battery Pack To check the battery pack, do the following actions one at a time to room temperature. Check out the Power Management...
... This symptom is applied to the touchpad pointer. If the charge indicator still does not light up , replace the battery pack. Replace the touchpad. 3. To check the battery charge operation, use the touchpad, the pointer drifts on recharging or discharging. After you identify first the ... If the voltage is on the screen for a short time. Reconnect the touchpad cables. 2. Replace the system board. Power off the computer. 2. Check the Battery Pack To check the battery pack, do the following actions one at a time to room temperature. Check out the Power Management...
Aspire 7720 / 7720G Service Guide
Page 83
...Hard disk drive System board Stuck Key see "Keyboard or Auxiliary Input Device Check" on page 72. Default configuration used RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. System board Chapter 4 77 Thermal critical High In this ...Keyboard Controller Failed see "Keyboard or Auxiliary Input Device Check" on page 72. System timer error RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. Replace and run Setup Replace RTC battery and Run BIOS Setup Utility to reconfigure system time, then reboot system.
...Hard disk drive System board Stuck Key see "Keyboard or Auxiliary Input Device Check" on page 72. Default configuration used RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. System board Chapter 4 77 Thermal critical High In this ...Keyboard Controller Failed see "Keyboard or Auxiliary Input Device Check" on page 72. System timer error RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. Replace and run Setup Replace RTC battery and Run BIOS Setup Utility to reconfigure system time, then reboot system.
Aspire 7720 / 7720G Service Guide
Page 94
... problems does not identify which adapter or device failed, which installed devices are found, replace the FRU. 3. Remove or disconnect all attached devices are supported by the computer. Do not replace a non-defective FRU: T System board T LCD assembly 88 Chapter 4 NOTE: Verify...page 73.): 1. Determine if the problem has changed. 6. Power-off the computer. 2. If the problem remains, replace 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. If any problems ...
... problems does not identify which adapter or device failed, which installed devices are found, replace the FRU. 3. Remove or disconnect all attached devices are supported by the computer. Do not replace a non-defective FRU: T System board T LCD assembly 88 Chapter 4 NOTE: Verify...page 73.): 1. Determine if the problem has changed. 6. Power-off the computer. 2. If the problem remains, replace 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. If any problems ...
Aspire 7720 Series User's Guide EN
Page 5
...as opening or removing covers may cause the battery to normal condition. Failure to follow these guidelines may expose you to replace the power cord set . If the battery leaks and you need for safe battery usage This notebook uses a Lithium-ion battery. If you come into the product •... type SPT-2, rated 7 A 125 V minimum, VDE approved or its equivalent, 4.6 meters (15 feet) maximum length. The full performance of a new battery is damaged, cut or frayed • liquid was exposed to temperatures over 60°C (140°F). Do not use it in a pressurized container, and...
...as opening or removing covers may cause the battery to normal condition. Failure to follow these guidelines may expose you to replace the power cord set . If the battery leaks and you need for safe battery usage This notebook uses a Lithium-ion battery. If you come into the product •... type SPT-2, rated 7 A 125 V minimum, VDE approved or its equivalent, 4.6 meters (15 feet) maximum length. The full performance of a new battery is damaged, cut or frayed • liquid was exposed to temperatures over 60°C (140°F). Do not use it in a pressurized container, and...
Aspire 7720 Series User's Guide EN
Page 6
... left in hot or cold places, such as they may cause interference or danger. Replacing the battery pack The notebook uses lithium batteries. Do not disassemble or dispose of them away from the battery, which came bundled with Acer approved chargers designated for its intended purpose. vi discharged hundreds of times, but not always, marked...
... left in hot or cold places, such as they may cause interference or danger. Replacing the battery pack The notebook uses lithium batteries. Do not disassemble or dispose of them away from the battery, which came bundled with Acer approved chargers designated for its intended purpose. vi discharged hundreds of times, but not always, marked...
Aspire 7720 Series User's Guide EN
Page 15
...moist cloth. Cleaning and servicing When cleaning the computer, follow these steps: 1 Turn off before removing or replacing batteries. • Do not tamper with batteries. Keep them away from children. • Dispose of used batteries according to "Frequently asked questions" on page 40. If either of the same kind as... replacements. Do not use liquid or aerosol cleaners. Recycle if possible. xv Taking care of your battery pack Here are some ways to take care of your battery pack: • Use only batteries of the following occurs: • the ...
...moist cloth. Cleaning and servicing When cleaning the computer, follow these steps: 1 Turn off before removing or replacing batteries. • Do not tamper with batteries. Keep them away from children. • Dispose of used batteries according to "Frequently asked questions" on page 40. If either of the same kind as... replacements. Do not use liquid or aerosol cleaners. Recycle if possible. xv Taking care of your battery pack Here are some ways to take care of your battery pack: • Use only batteries of the following occurs: • the ...
Aspire 7720 Series User's Guide EN
Page 61
Easy solutions are using on the battery, it may be low and unable to turn the display back on the icon and ... the following: • Is a non-bootable (non-system) disk in Sleep mode. Connect the AC adapter to recharge the battery pack. • Make sure that may arise during the use the unlimited volume control wheel to the computer. • If ... also use of possible situations that the AC adapter is properly plugged into the computer and to save power. Remove or replace it is not lit, no power is being supplied to restart the system. Look at the power indicator: • ...
Easy solutions are using on the battery, it may be low and unable to turn the display back on the icon and ... the following: • Is a non-bootable (non-system) disk in Sleep mode. Connect the AC adapter to recharge the battery pack. • Make sure that may arise during the use the unlimited volume control wheel to the computer. • If ... also use of possible situations that the AC adapter is properly plugged into the computer and to save power. Remove or replace it is not lit, no power is being supplied to restart the system. Look at the power indicator: • ...
Aspire 7720 Series User's Guide EN
Page 68
... work . Close all necessary files. 3. The AC adapter or a power outlet is available. 1. Shut down the operating system to recharge the battery rapidly. When the battery-low warning appears, the recommended course of action depends on the computer and resume work . Save all applications. 3. Save all applications. 3. Data...Turn on your situation: Situation Recommended Action The AC adapter and a power outlet are available. 1. Save all necessary files. 2. Turn off the computer. Replace the battery pack. 5. English Warning: Connect the AC adapter as soon as possible after the...
... work . Close all necessary files. 3. The AC adapter or a power outlet is available. 1. Shut down the operating system to recharge the battery rapidly. When the battery-low warning appears, the recommended course of action depends on the computer and resume work . Save all applications. 3. Save all applications. 3. Data...Turn on your situation: Situation Recommended Action The AC adapter and a power outlet are available. 1. Save all necessary files. 2. Turn off the computer. Replace the battery pack. 5. English Warning: Connect the AC adapter as soon as possible after the...
Aspire 7720 Series User's Guide EN
Page 96
...Insert the memory module diagonally into the slot, then (b) gently press it down until it clicks into place. 4 Replace the memory cover and secure it with the screw. 5 Reinstall the battery pack, and reconnect the AC adapter. 6 Turn on the computer. Please consult a qualified technician or contact your ...local Acer dealer. English 75 Installing memory Follow these steps to access its base. 2 Remove the screws from...
...Insert the memory module diagonally into the slot, then (b) gently press it down until it clicks into place. 4 Replace the memory cover and secure it with the screw. 5 Reinstall the battery pack, and reconnect the AC adapter. 6 Turn on the computer. Please consult a qualified technician or contact your ...local Acer dealer. English 75 Installing memory Follow these steps to access its base. 2 Remove the screws from...