Aspire 4720, G, Z, 4320 Service Guide
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...battery. If the battery status indicator does not light up, remove the battery pack and let it return to the touchpad pointer. Replace the system board. Chapter 4 71 Touchpad Check If the touchpad doesn't work, do the following: From Software: 1. Power off the computer. 2. 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). Check the Battery Pack To check the battery pack, do ...
...battery. If the battery status indicator does not light up, remove the battery pack and let it return to the touchpad pointer. Replace the system board. Chapter 4 71 Touchpad Check If the touchpad doesn't work, do the following: From Software: 1. Power off the computer. 2. 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). Check the Battery Pack To check the battery pack, do ...