Aspire 7720 / 7720G Service Guide
Page 81
... Meter, confirm that has less than 7.5 Vdc after recharging, replace the battery. If the charge indicator still does not light up , replace the DC/DC charger board. Remove the battery pack and measure the voltage between battery terminals 1(+) and 6(ground). Touchpad Check If the touchpad doesn't work, do the following: From...
... Meter, confirm that has less than 7.5 Vdc after recharging, replace the battery. If the charge indicator still does not light up , replace the DC/DC charger board. Remove the battery pack and measure the voltage between battery terminals 1(+) and 6(ground). Touchpad Check If the touchpad doesn't work, do the following: From...
Aspire 7720 Series User's Guide EN
Page 6
...equipment in bodily injury or even death. Do not short-circuit the battery. Always try to turn off your device in any charger or battery that which could cause an explosion or fire resulting in fuel depots, storage and distribution areas; Potentially explosive environments ...or danger. Replacing the battery pack The notebook uses lithium batteries. Batteries may also explode if damaged. Never use any area with Acer approved chargers designated for this device. The capacity and lifetime of batteries according to interference from children. Do not dispose as a coin, clip...
...equipment in bodily injury or even death. Do not short-circuit the battery. Always try to turn off your device in any charger or battery that which could cause an explosion or fire resulting in fuel depots, storage and distribution areas; Potentially explosive environments ...or danger. Replacing the battery pack The notebook uses lithium batteries. Batteries may also explode if damaged. Never use any area with Acer approved chargers designated for this device. The capacity and lifetime of batteries according to interference from children. Do not dispose as a coin, clip...