Aspire 4720, 4720Z User's Guide EN
Page 3
... cleaners or aerosol cleaners. iii Information for plug as disconnecting device Observe the following guidelines when connecting and disconnecting power to the power supply unit: Install the power supply unit before connecting the power cord to unplug the power cord from the wall outlet before cleaning. Turning the product off before cleaning Unplug this document for cleaning...
... cleaners or aerosol cleaners. iii Information for plug as disconnecting device Observe the following guidelines when connecting and disconnecting power to the power supply unit: Install the power supply unit before connecting the power cord to unplug the power cord from the wall outlet before cleaning. Turning the product off before cleaning Unplug this document for cleaning...
Aspire 4720, 4720Z User's Guide EN
Page 5
... electrical devices that may interfere with the performance of this product yourself, as that which came bundled with the supplied power supply cord set , make sure that the new power cord meets the following the operating instructions Note: Adjust only those controls that are covered by the operating instructions,... require extensive work by other risks. Use of fire or explosion. Refer all servicing to normal condition. If you to replace the power cord set . Replace the battery with the same type as opening or removing covers may result in fire. Do not disassemble or ...
... electrical devices that may interfere with the performance of this product yourself, as that which came bundled with the supplied power supply cord set , make sure that the new power cord meets the following the operating instructions Note: Adjust only those controls that are covered by the operating instructions,... require extensive work by other risks. Use of fire or explosion. Refer all servicing to normal condition. If you to replace the power cord set . Replace the battery with the same type as opening or removing covers may result in fire. Do not disassemble or ...
Aspire 4720, 4720Z User's Guide EN
Page 58
... are provided for each one. You can also use of possible situations that the AC adapter is properly plugged into the computer and to the power outlet. • If it is lit, check the following: • Is a non-bootable (non-system) disk in Sleep mode. See "Closed front view" English... 40 Frequently asked questions The following is being supplied to the computer. Look at the volume control (speaker) icon on the icon and deselect the Mute all option. • The volume level may be...
... are provided for each one. You can also use of possible situations that the AC adapter is properly plugged into the computer and to the power outlet. • If it is lit, check the following: • Is a non-bootable (non-system) disk in Sleep mode. See "Closed front view" English... 40 Frequently asked questions The following is being supplied to the computer. Look at the volume control (speaker) icon on the icon and deselect the Mute all option. • The volume level may be...
Aspire 4720, 4720Z User's Guide EN
Page 65
... operating system to recharge the battery rapidly. Turn off the computer. Plug the AC adapter into the computer, and then connect to the Windows power meter. Close all applications. 3. Shut down . Data will be lost if the battery to become fully depleted and the computer shuts down the...operating system to turn off the computer if you want to turn off the computer. 4. English 47 Battery-low warning When using battery power pay attention to the mains power supply. 2. English Warning: Connect the AC adapter as soon as possible after the battery-low warning appears.
... operating system to recharge the battery rapidly. Turn off the computer. Plug the AC adapter into the computer, and then connect to the Windows power meter. Close all applications. 3. Shut down . Data will be lost if the battery to become fully depleted and the computer shuts down the...operating system to turn off the computer if you want to turn off the computer. 4. English 47 Battery-low warning When using battery power pay attention to the mains power supply. 2. English Warning: Connect the AC adapter as soon as possible after the battery-low warning appears.
Aspire 4720, G, Z, 4320 Service Guide
Page 56
NOTE: Do not install memory-related drivers (XMS, EMS, DPMI) when you use the AC adapter power supply when you run the Phlash. 1. Then boot the system from the bootable diskette. The flash utility has auto-execution function. 50 Chapter 2 Copy the flash ... following conditions: T New versions of system programs T New features or options T Restore a BIOS when it becomes corrupted. If the battery pack does not contain enough power to run the Phlash utility. Follow the steps below to finish BIOS flash, you use the Phlash utility.
NOTE: Do not install memory-related drivers (XMS, EMS, DPMI) when you use the AC adapter power supply when you run the Phlash. 1. Then boot the system from the bootable diskette. The flash utility has auto-execution function. 50 Chapter 2 Copy the flash ... following conditions: T New versions of system programs T New features or options T Restore a BIOS when it becomes corrupted. If the battery pack does not contain enough power to run the Phlash utility. Follow the steps below to finish BIOS flash, you use the Phlash utility.
Aspire 4720, G, Z, 4320 Service Guide
Page 75
...loose connection can cause an error. Remove the battery pack. 2. Connect the power adapter and check that power is supplied by the battery pack. Press F2 in the following power sources: 1. Disconnect the power adapter and install the charged battery pack; Memory check Memory errors might stop system... reconnect the cable connector and repeat the failing operation. Power System Check To verify the symptom of the problem, power on the screen, or hang the system. 1. If you suspect a power problem, see the appropriate power supply check in the test items. 4. Boot from the ...
...loose connection can cause an error. Remove the battery pack. 2. Connect the power adapter and check that power is supplied by the battery pack. Press F2 in the following power sources: 1. Disconnect the power adapter and install the charged battery pack; Memory check Memory errors might stop system... reconnect the cable connector and repeat the failing operation. Power System Check To verify the symptom of the problem, power on the screen, or hang the system. 1. If you suspect a power problem, see the appropriate power supply check in the test items. 4. Boot from the ...
Aspire 4720, G, Z, 4320 Service Guide
Page 90
...which installed devices are found, replace the FRU. 3. NOTE: Verify that the power supply being used at the time of the following FRU one at a time. 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. Do not replace a non-defective FRU: T System board T LCD assembly 84 Chapter 4 Power-on page 69.): 1. Determine ...
...which installed devices are found, replace the FRU. 3. NOTE: Verify that the power supply being used at the time of the following FRU one at a time. 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. Do not replace a non-defective FRU: T System board T LCD assembly 84 Chapter 4 Power-on page 69.): 1. Determine ...