Acer 522 User Manual
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Troubleshooting

Introduction

This chapter contains information about troubleshooting common notebook problems.

General Information

The following procedures are a guide for troubleshooting computer problems. The step by step procedures are designed to be performed as described.

NOTE:NOTE:

The diagnostic tests are intended for Acer products only. Non-Acerproducts, prototype cards, or modified options can give false errors and invalid system responses.

NOTE:NOTE:

Do not replace a non-defectiveFRU.

1.Obtain as much detailed information as possible about the problem.

2.If possible, verify the symptoms by re-creatingthe failure through diagnostic tests or repeating the operation that led to the problem.

3.Use Table 4-1 with the verified symptom to determine the solution.

Table 4-1.Common problems

Symptoms (Verified)

Power On Issues

No Display Issues

LCD Failure

Internal Speaker Failure

Touchpad Failure

Internal Speaker Failure

Microphone Failure

USB Failure

Wireless Function Failure

3G Function Failure

Cosmetic Failure

Thermal Unit Failure

Other Functions Failure

Intermittent Problems

Undetermined Problems

4. If the Issue is still not resolved, refer to Online Support Information.

Troubleshooting

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Power On Issues

If the system does not power on, perform the following:

Figure 4-1.Power On Issue

Computer Shuts Down Intermittently

If the system powers off at intervals, perform the following.

1.Makes sure the power cable is properly connected to the computer and the electrical outlet.

2.Remove all extension cables between the computer and the outlet.

3.Remove all surge protectors between the computer and the electrical outlet. Plug the computer directly into a known serviceable electrical outlet.

4.Disconnect the power and open the casing to check the Thermal Unit (refer to Thermal Unit Failure) and fan airways are free of obstructions.

5.Remove all external and non-essentialhardware connected to the computer that are not necessary to boot the computer to the failure point.

6.Remove any recently installed software.

7.If the Issue is still not resolved, see Online Support Information.

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Troubleshooting

No Display Issues

If the Display does not work, perform the following:

Figure 4-2.No Display Issue

No POST or Video

If the POST or video does not appear, perform the following:

1.Make sure that internal display is selected. Switching between internal and external by pressing Fn+F5. Reference Product pages for specific model procedures.

2.Make sure the computer has power by checking for one of the following: Fans start up

Status LEDs illuminate

If no power, refer to Power On Issues.

3.Drain stored power by removing the power cable and battery. Hold the power button for 10 seconds.

4.Connect the power and reboot the computer.

Troubleshooting

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5.Connect an external monitor to the computer and switch between the internal display and the external display is by pressing Fn+F5.

6.If the POST or video appears on the external display only, refer to LCD Failure.

7.Disconnect power and all external devices including port replicators or docking stations. Remove any memory cards and CD/DVD discs.

8.Start the computer. If the computer boots correctly, add the devices one by one until the failure point is discovered.

9.Reseat the memory modules.

10.Remove the drives. (refer to Maintenance Flowchart)

11.If the Issue is still not resolved, refer to Online Support Information.

Abnormal Video

If the video appears abnormal, perform the following:

1.Boot the computer.

If permanent vertical/horizontal lines or dark spots appear in the same location, the LCD is faulty and should be replaced. (refer toMaintenance Flowchart)

If extensive pixel damage is present (different colored spots in the same locations on the screen), the LCD is faulty and should be replaced. (refer toMaintenance Flowchart)

NOTE:NOTE:

Make sure that the computer is not running on battery alone as this may reduce display brightness.

2.Adjust the brightness to its highest level. Refer to the User Manual for instructions on adjusting the settings. If the display is too dim at the highest brightness setting, the LCD is faulty and should be replaced. (refer to Maintenance Flowchart)

3.Check the display resolution is correctly configured: Minimize or close all Windows.

If display size is only abnormal in an application, check the view settings and control/mouse wheel zoom feature in the application.

If desktop display resolution is not normal,right-clickon the desktop and select

Personalize Display Settings.

Click and drag the Resolution slider to the desired resolution.ClickApply and check the display. Readjust if necessary.

4.Roll back the video driver to the previous version if updated.

5.Remove and reinstall the video driver.

6.Check the Device Manager to determine that:

The device is properly installed. There are no red Xs or yellow exclamation marksThere are no device conflicts

No hardware is listed underOther Devices

7.If the Issue is still not resolved, refer to Online Support Information.

8.Run the Windows Memory Diagnostic from the operating system DVD and follow the

on-screenprompts.

9. If the Issue is still not resolved, refer to Online Support Information.

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Troubleshooting