Power System Check

Do the following:

1.Remove the battery pack.

2.Connect the power adapter and check the power supply.

3.Disconnect the power adapter and install the battery pack; then check that power supply. If you suspect a power problem, see the appropriate power supply check in the following list:

“Check the Power Adapter” on page 89 “Check the Battery Pack” on page 89

Check the Power Adapter

Unplug the power adapter cable from the system and measure the output voltage at the plug of the power adapter cable.

1.If the voltage is not correct, replace the power adapter.

2.If the voltage is within range, do the following:

a.Replace the System board.

b.If the problem is not resolved, see “Undetermined Problems” on page 103.

c.If the voltage is not correct, go to the next step.

NOTE: An audible noise from the power adapter does not always indicate a defect.

3.If the power-on indicator does not light up, check if the adapter’s power cord is properly connected to the system.

4.If the operational charge does not work, see “Check the Battery Pack” on page 89.

Check the Battery Pack

Do the following:

Using the software to identify whether a problem occurs while the battery pack during recharge or discharge:

1.Open Power Management in the Control Panel.

2.In Power Meter, confirm if the parameters for Current Power Source and Total Battery Power Remaining are correct.

3.Repeat the steps 1 and 2 for both battery and adapter.

Using the hardware 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.

3.If the voltage is still less than 7.5 Vdc after recharging, replace the battery.

If the battery status indicator does not light up, remove the battery pack . If the charge indicator still does not light up, replace the AC/DC charger board.

Chapter 4

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Acer 4715Z, 4315 manual Power System Check, Check the Power Adapter

4715Z, 4315 specifications

The Acer 4315 and Acer 4715Z are compact and reliable laptops from Acer's lineup, known for their blend of performance and affordability targeted at entry-level users. These models stand out due to their practical features and solid build quality, making them suitable for both educational and basic professional tasks.

The Acer 4315 is equipped with a 15.4-inch display that offers a resolution of 1280 x 800 pixels, providing clear visuals and decent color reproduction for everyday usage. It features a robust Intel Celeron processor, which ensures that it efficiently handles common computing tasks, including web browsing, word processing, and media consumption. This model often comes with a variety of RAM options, typically ranging from 512MB to 2GB, allowing users to choose according to their multitasking needs.

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