Acer TravelMate 8200, Руководство по обслуживанию

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80 Chapter 4
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.