Aspire 7720 / 7720G Service Guide
Page 81
..., confirm that has less than 7.5 Vdc after recharging, replace the battery. Re-install the battery pack. Touchpad Check If the touchpad doesn't work, do the following: From Software: 1. Replace the touchpad. 3. This symptom is applied to room temperature. This helps you use a discharged battery pack or a battery...the DC/DC charger board. If the battery status indicator does not light up, remove the battery pack and let it return to the touchpad pointer. Do not replace a non-defective FRU: 1. Check the Battery Pack To check the battery pack, do the following actions one...
..., confirm that has less than 7.5 Vdc after recharging, replace the battery. Re-install the battery pack. Touchpad Check If the touchpad doesn't work, do the following: From Software: 1. Replace the touchpad. 3. This symptom is applied to room temperature. This helps you use a discharged battery pack or a battery...the DC/DC charger board. If the battery status indicator does not light up, remove the battery pack and let it return to the touchpad pointer. Do not replace a non-defective FRU: 1. Check the Battery Pack To check the battery pack, do the following actions one...
Aspire 7720 / 7720G Service Guide
Page 92
...battery pack and let it cool for 2 hours. Onboard Devices Configuration Run printer self-test. Touchpad does not work correctly. Action in Windows doesn't go higher than 90%. Touchpad board System board Modem-Related Symptoms Symptom / Error Action in this list and the problem remains...: If you cannot find a symptom or an error in Sequence Internal modem does not work correctly. External display does not work . USB does not work . Keyboard System board Reconnect touchpad cable. Refresh battery (continue use battery until power off, then charge battery). Hard disk...
...battery pack and let it cool for 2 hours. Onboard Devices Configuration Run printer self-test. Touchpad does not work correctly. Action in Windows doesn't go higher than 90%. Touchpad board System board Modem-Related Symptoms Symptom / Error Action in this list and the problem remains...: If you cannot find a symptom or an error in Sequence Internal modem does not work correctly. External display does not work . USB does not work . Keyboard System board Reconnect touchpad cable. Refresh battery (continue use battery until power off, then charge battery). Hard disk...