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NOTE: Cable placement is Black to the TR1 terminal (next to DIMM module) and White to the TR2 terminal (closest to the edge of the chassis). Replacing the DIMM Modules 1. Insert the DIMM Module in place. 2. Press down to lock the DIMM module in place. 3. Repeat with the second DIMM module if present. 104 Chapter 3 Replacing the Lower Covers 1. Replace the HDD Cover as shown. IMPORTANT:Press down around the perimeter of the cover to ensure that the all the securing tabs are snapped correctly. 2. Secure the five captive screws to hold the covers in place. Chapter 3 105 Replacing the Dummy Cards 1. Insert the SD Dummy Card into the slot and push until the card clicks into place and is flush with the casing. Replacing the Battery Pack 1. Insert the battery pack and press down. 2. Slide the battery lock in the direction shown to secure the battery in place. 106 Chapter 3 Chapter 4 Troubleshooting Common Problems Use the following procedure as a guide for computer problems. NOTE: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. 1. Obtain the failing symptoms in as much detail as possible. 2. Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating the same operation. 3. Use the following table with the verified symptom to determine which page to go to. Symptoms (Verified) Go To Power On Issue Page 108 No Display Issue Page 109 LCD Failure Page 111 Internal Keyboard Failure Page 111 TouchPad Failure Page 112 Internal Speaker Failure Page 112 ODD Failure Page 115 WLAN Failure Page 118 Thermal Unit Failure Page 118 Other Functions Failure Page 119 Intermittent Failures Page 120 Undermined Failures Page 120 4. If the Issue is still not resolved, see “Online Support Information” on page 165. Chapter 4 107 Power On Issue If the system doesn’t power on, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Computer Shutsdown Intermittently If the system powers off at intervals, perform the following actions one at a time to correct the problem. 1. Check the power cable is properly connected to the computer and the electrical outlet. 2. Remove any extension cables between the computer and the outlet. 3. Remove any surge protectors between the computer and the electrical outlet. Plug the computer directly into a known good electrical outlet. 4. Disconnect the power and open the casing to check the Thermal Unit (see “Thermal Unit Failure” on page 118) and fan airways are free of obstructions. 5. Remove all external and non-essential hardware 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” on page 165. 108 Chapter 4 No Display Issue If the Display doesn’t work, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: No POST or Video If the POST or video doesn’t display, perform the following actions one at a time to correct the problem. 1. Make sure that the internal display is selected. On this notebook model, switching between the internal display and the external display is done by pressing Fn+F5. Reference Product pages for specific model procedures. 2. Make sure the computer has power by checking at least one of the following occurs: • Fans start up • Status LEDs light up If there is no power, see “Power On Issue” on page 108. 3. Drain any stored power by removing the power cable and battery and holding down the power button for 10 seconds. Reconnect the power and reboot the computer. 4. Connect an external monitor to the computer and switch between the internal display and the external display is by pressing Fn+F5 (on this model). If the POST or video appears on the external display, see “LCD Failure” on page 111. 5. Disconnect power and all external devices including port replicators or docking stations. Remove any memory cards and CD/DVD discs. Restart the computer. If the computer boots correctly, add the devices one by one until the failure point is discovered. 6. Reseat the memory modules. 7. Remove the drives (see “Disassembly Process” on page 46). 8. If the Issue is still not resolved, see “Online Support Information” on page 165. Chapter 4 109 Abnormal Video Display If video displays abnormally, perform the following actions one at a time to correct the problem. 1. Reboot the computer. 2. If permanent vertical/horizontal lines or dark spots display in the same location, the LCD is faulty and should be replaced. See “Disassembly Process” on page 46. 3. If extensive pixel damage is present (different colored spots in the same locations on the screen), the LCD is faulty and should be replaced. See “Disassembly Process” on page 46. 4. Adjust the brightness to its highest level. See the User Ma...

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