Acer KB.A3502.015 Datasheet download pdf (Page 66)

58 Chapter 4

Check the Power Adapter

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

adapter cable. See the following figure

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

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

T Replace the System board.

T If the problem is not corrected, see “Undetermined Problems” on page 70.

T 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 the power cord of the power adapter for correct

continuity and installation.

4. If the operational charge does not work, see “Check the Battery Pack” on page 59.

Pin 1: +19 to +20.5V

Pin 2: 0V, Ground

1 2 ... 61 62 63 64 65 66 67 68 69 70 71 ... 102 103

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Acer KB.A3502.015 Datasheet Page 66