Acer TravelMate 8200 TravelMate 8200 Service Guide - Page 90

3. Repeat the step 1 and step 2 for both battery and adaptor. From hardware, this helps to identify whether you should replace the battery pack or not. 1. Power off the system. 2. Remove the battery pack and measure the voltage between terminals one (+) and seven (-). There are seven terminals totally. See the illustration below. 3. If the voltage is still less than 7.5V after recharging, replace the battery. If the battery status indicator does not light up, remove the battery pack. After the battery pack returns to room temperature, reinstall it to the system. If the charge indicator does not light up, replace the battery pack. If the charge indicator still does not light up, replace the AC/DC charger board. Touchpad Check If the touchpad does not work, follow the procedures one at a time to correct the problem. Do not replace a non-defective FRU. 1. Reconnect the touchpad cables. 2. Replace the touchpad. 3. Replace the system board. After you use the touchpad, the pointer drifts on the screen for a short time. This self-acting pointer movement will occur when a slight, steady pressure is applied to the touchpad pointer. This symptom is not a hardware problem. 80 Chapter 4