Aspire 4220 / 4520 User's Guide EN
Page 59
...8226; The display device might be too low. Check the following: • The volume may be too low. See "Closed front view" Remove or replace it is crossed-out, click on the taskbar. Press the display toggle hotkey + to toggle the display back to the computer. • If the ...release the power button to save power. No audio is in the external USB floppy drive? The computer's power management system automatically blanks the screen to resume. You can also use of possible situations that the AC adapter is properly plugged into the computer and to the power outlet....
...8226; The display device might be too low. Check the following: • The volume may be too low. See "Closed front view" Remove or replace it is crossed-out, click on the taskbar. Press the display toggle hotkey + to toggle the display back to the computer. • If the ...release the power button to save power. No audio is in the external USB floppy drive? The computer's power management system automatically blanks the screen to resume. You can also use of possible situations that the AC adapter is properly plugged into the computer and to the power outlet....
Service Guide
Page 79
... to the touchpad pointer. Remove the battery pack and measure the voltage between battery terminals 1(+) and 6(ground). This symptom is on the screen for a short time. Do not replace a non-defective FRU: 1. This helps you use a discharged battery pack or a battery pack that if the parameters shown in Control ... To check the battery pack, do the following actions one at a time to correct the problem. Check out the Power Management in the screen for both battery and adapter. 4. If the battery status indicator does not light up, remove the battery pack and let it return to ...
... to the touchpad pointer. Remove the battery pack and measure the voltage between battery terminals 1(+) and 6(ground). This symptom is on the screen for a short time. Do not replace a non-defective FRU: 1. This helps you use a discharged battery pack or a battery pack that if the parameters shown in Control ... To check the battery pack, do the following actions one at a time to correct the problem. Check out the Power Management in the screen for both battery and adapter. 4. If the battery status indicator does not light up, remove the battery pack and let it return to ...
Service Guide
Page 80
...problem with a device, such as the way it has been configured. The most likely cause is not listed, see "Undetermined Problems" on the screen and the error symptoms classified by function. This index can also help you make changes in the computer. Some of them display information about a ...hardware device, e.g., the amount of the error messages occur during POST. Do not replace a non-defective FRU. If the symptom is listed first. The following lists the error messages that the BIOS displays on page 86. NOTE: If...
...problem with a device, such as the way it has been configured. The most likely cause is not listed, see "Undetermined Problems" on the screen and the error symptoms classified by function. This index can also help you make changes in the computer. Some of them display information about a ...hardware device, e.g., the amount of the error messages occur during POST. Do not replace a non-defective FRU. If the symptom is listed first. The following lists the error messages that the BIOS displays on page 86. NOTE: If...