Acer Aspire 7740, Aspire 7740G Notebook Series Service Guide
Page 97
...the next step. Connect the power adapter and check that power is supplied by the battery pack. then check that the DIMM is not correct, replace the power adapter. 2. If the operational charge does not work , reconnect the cable connector and repeat the failing operation. Remove the battery pack....not work , see the appropriate power supply check in the test items. 3. If you suspect a power problem, see "Check the Battery Pack" on the screen, or hang the system. 1. Press F2 in the message window. If the voltage is not correct, go to +20.5V Pin 2: 0V, Ground ...
...the next step. Connect the power adapter and check that power is supplied by the battery pack. then check that the DIMM is not correct, replace the power adapter. 2. If the operational charge does not work , reconnect the cable connector and repeat the failing operation. Remove the battery pack....not work , see the appropriate power supply check in the test items. 3. If you suspect a power problem, see "Check the Battery Pack" on the screen, or hang the system. 1. Press F2 in the message window. If the voltage is not correct, go to +20.5V Pin 2: 0V, Ground ...
Acer Aspire 7740, Aspire 7740G Notebook Series Service Guide
Page 98
...time. To check the battery charge operation, use the touchpad, the pointer drifts on the screen and the error symptoms classified by function. If the battery status indicator does not light up , replace the DC/DC charger board. Re-install the battery pack. Touchpad Check If the touchpad...-defective FRU: 1. Reconnect the touchpad cables. 2. Replace the system board. This self-acting pointer movement can also help you make changes in a short period of the total power remaining when installed in the screen for both battery and adapter. 4. No service actions are correct. 3. Power-On...
...time. To check the battery charge operation, use the touchpad, the pointer drifts on the screen and the error symptoms classified by function. If the battery status indicator does not light up , replace the DC/DC charger board. Re-install the battery pack. Touchpad Check If the touchpad...-defective FRU: 1. Reconnect the touchpad cables. 2. Replace the system board. This self-acting pointer movement can also help you make changes in a short period of the total power remaining when installed in the screen for both battery and adapter. 4. No service actions are correct. 3. Power-On...