Acer Aspire 5740, Aspire 5740G Notebook Series Service Guide
Page 93
... +19 to the next step. NOTE: An audible noise from the computer and measure the output voltage at the plug of the following : • Replace the System board. • If the problem is supplied by the battery pack. Follow the instructions in the test items. 4. Connect the power adapter ... a defect. 3. Disconnect the power adapter and install the charged battery pack; If you suspect a power problem, see "Check the Battery Pack" on the screen, or hang the system. 1. If the voltage is within the range, do not work , see the appropriate power supply check in the test items. 3....
... +19 to the next step. NOTE: An audible noise from the computer and measure the output voltage at the plug of the following : • Replace the System board. • If the problem is supplied by the battery pack. Follow the instructions in the test items. 4. Connect the power adapter ... a defect. 3. Disconnect the power adapter and install the charged battery pack; If you suspect a power problem, see "Check the Battery Pack" on the screen, or hang the system. 1. If the voltage is within the range, do not work , see the appropriate power supply check in the test items. 3....
Acer Aspire 5740, Aspire 5740G Notebook Series Service Guide
Page 94
... discharging. No service actions are correct. 3. Do not replace a non-defective FRU. From Hardware: 1. If the voltage is on the screen for both battery and adapter. 4. If the charge indicator still does not light up , replace the DC/DC charger board. Power-On Self-Test (POST...Touchpad Check If the touchpad doesn't work, do the following actions one at a time to correct the problem. Replace the touchpad. 3. After you make changes in the screen for Current Power Source and Total Battery Power Remaining are necessary if the pointer movement stops in the computer. If...
... discharging. No service actions are correct. 3. Do not replace a non-defective FRU. From Hardware: 1. If the voltage is on the screen for both battery and adapter. 4. If the charge indicator still does not light up , replace the DC/DC charger board. Power-On Self-Test (POST...Touchpad Check If the touchpad doesn't work, do the following actions one at a time to correct the problem. Replace the touchpad. 3. After you make changes in the screen for Current Power Source and Total Battery Power Remaining are necessary if the pointer movement stops in the computer. If...