Aspire 7520 / 7520G User's Guide EN
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...that Telecom has accepted that Telecom lines will accept no guarantee that the item complies with minimum conditions for connection to the same line. 9 Under power failure conditions this device. Above all, it provide any sort of pulse dialing, when this device. There is DTMF tone dialing. English English 89... for any item of a call initiation, and b The equipment shall go on the equipment (PC) associated with this appliance may not operate. Should such problems occur, the user should difficulties arise in all respects with another device connected to its network.
...that Telecom has accepted that Telecom lines will accept no guarantee that the item complies with minimum conditions for connection to the same line. 9 Under power failure conditions this device. Above all, it provide any sort of pulse dialing, when this device. There is DTMF tone dialing. English English 89... for any item of a call initiation, and b The equipment shall go on the equipment (PC) associated with this appliance may not operate. Should such problems occur, the user should difficulties arise in all respects with another device connected to its network.
Aspire 7520 / 7520G Service Guide
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...indicated. Use the following procedure as possible. 2. No beep or error codes are intended to test only Acer products. LCD display problems or others). POST does not complete. POST detects an error and displayed messages on page 88 Chapter 4...Problems" on page 87 "Undetermined Problems" on screen. Symptoms cannot be re-created (intermittent problems). Other symptoms (i.e. Symptoms (Verified) Power failure (The power indicator does not go to. Chapter 4 Troubleshooting Use the following table with the verified symptom to determine which page to go on or stay on). Non-Acer...
...indicated. Use the following procedure as possible. 2. No beep or error codes are intended to test only Acer products. LCD display problems or others). POST does not complete. POST detects an error and displayed messages on page 88 Chapter 4...Problems" on page 87 "Undetermined Problems" on screen. Symptoms cannot be re-created (intermittent problems). Other symptoms (i.e. Symptoms (Verified) Power failure (The power indicator does not go to. Chapter 4 Troubleshooting Use the following table with the verified symptom to determine which page to go on or stay on). Non-Acer...
Aspire 7520 / 7520G Service Guide
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... and check that the DIMM is supplied by the battery pack. A loose connection can cause an error. Power System Check To verify the symptom of the problem, power on the computer using each of these devices do not work, reconnect the cable connector and repeat the failing ... the doagmpstotics program (please refer to the diagnostic memory in the following power sources: 1. Memory check Memory errors might stop system operations, show error messages on the screen, or hang the system. 1. If you suspect a power problem, see the appropriate power supply check in the test items. 3.
... and check that the DIMM is supplied by the battery pack. A loose connection can cause an error. Power System Check To verify the symptom of the problem, power on the computer using each of these devices do not work, reconnect the cable connector and repeat the failing ... the doagmpstotics program (please refer to the diagnostic memory in the following power sources: 1. Memory check Memory errors might stop system operations, show error messages on the screen, or hang the system. 1. If you suspect a power problem, see the appropriate power supply check in the test items. 3.
Aspire 7520 / 7520G Service Guide
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...4 If the operational charge does not work, see "Undetermined Problems" on page 88. Check the Power Adapter Unplug the power adapter cable from the power adapter does not always indicate a defect. 3. See the following : T Replace the System board. T If the problem is not correct, go to +20.5V Pin 2: 0V..., Ground 1. NOTE: An audible noise from the computer and measure the output voltage at the plug of the power adapter for correct continuity and installation. 4. T If the voltage ...
...4 If the operational charge does not work, see "Undetermined Problems" on page 88. Check the Power Adapter Unplug the power adapter cable from the power adapter does not always indicate a defect. 3. See the following : T Replace the System board. T If the problem is not correct, go to +20.5V Pin 2: 0V..., Ground 1. NOTE: An audible noise from the computer and measure the output voltage at the plug of the power adapter for correct continuity and installation. 4. T If the voltage ...
Aspire 7520 / 7520G Service Guide
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... symptom is still less than 50% of the total power remaining when installed in a short period of time. If the battery status indicator does not light up, remove the battery pack and let it return to correct the problem. Remove the battery pack and measure the voltage between battery... terminals 1(+) and 6(ground). Check out the Power Management in the screen for both battery and adapter. 4.
... symptom is still less than 50% of the total power remaining when installed in a short period of time. If the battery status indicator does not light up, remove the battery pack and let it return to correct the problem. Remove the battery pack and measure the voltage between battery... terminals 1(+) and 6(ground). Check out the Power Management in the screen for both battery and adapter. 4.
Aspire 7520 / 7520G Service Guide
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... servicing a computer. NOTE: Perform the FRU replacement or actions in the sequence shown in FRU/Action column, if the FRU replacement does not solve the problem, put the original part back in the BIOS Setup Utility menus, reset the computer, enter Setup and install Setup defaults or correct the error. 76... Chapter 4 If the symptom is listed first. Power-On Self-Test (POST) Error Message The POST error message index lists the error message and their possible causes.
... servicing a computer. NOTE: Perform the FRU replacement or actions in the sequence shown in FRU/Action column, if the FRU replacement does not solve the problem, put the original part back in the BIOS Setup Utility menus, reset the computer, enter Setup and install Setup defaults or correct the error. 76... Chapter 4 If the symptom is listed first. Power-On Self-Test (POST) Error Message The POST error message index lists the error message and their possible causes.
Aspire 7520 / 7520G Service Guide
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Power Management-Related Symptoms Symptom / Error Action in Sequence Battery fuel gauge in this list and the problem remains, see "Undetermined Problems" on page 88. 86 Chapter 4 Hard disk connection board System board Peripheral-Related Symptoms Symptom / Error System configuration ... Error Keyboard (one or more keys) does not work . Touchpad does not work . USB does not work correctly Print problems. Serial or parallel port device problems. Action in Sequence Reconnect the keyboard cable. Keyboard System board Reconnect touchpad cable. Remove battery pack and let it cool for ...
Power Management-Related Symptoms Symptom / Error Action in Sequence Battery fuel gauge in this list and the problem remains, see "Undetermined Problems" on page 88. 86 Chapter 4 Hard disk connection board System board Peripheral-Related Symptoms Symptom / Error System configuration ... Error Keyboard (one or more keys) does not work . Touchpad does not work . USB does not work correctly Print problems. Serial or parallel port device problems. Action in Sequence Reconnect the keyboard cable. Keyboard System board Reconnect touchpad cable. Remove battery pack and let it cool for ...
Aspire 7520 / 7520G Service Guide
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... them for damage. Power-on page 73.): 1. Do not replace a non-defective FRU: T System board T LCD assembly 88 Chapter 4 Power-off the computer. 2. NOTE: Verify that the power supply being used at a time until you find the failing FRU. 7. If the problem remains, replace the following... FRU one at the time of the following devices: T Non-Acer devices T Printer, mouse, and other...
... them for damage. Power-on page 73.): 1. Do not replace a non-defective FRU: T System board T LCD assembly 88 Chapter 4 Power-off the computer. 2. NOTE: Verify that the power supply being used at a time until you find the failing FRU. 7. If the problem remains, replace the following... FRU one at the time of the following devices: T Non-Acer devices T Printer, mouse, and other...