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Memory Check; Power System Check - Acer AS4810TG-354G50Mn LX.PE10X.047 Service Manual

Aspire 4810t; aspire 4810tz; aspire 4410t; aspire 4810tg series
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If any of these devices do not work, reconnect the cable connector and repeat the failing operation.

Memory Check

Memory errors might stop system operations, show error messages on the screen, or hang the system.
Boot from the diagnostics diskette and start the diagnostic program (please refer to main board.
Go to the diagnostic memory in the test items.
Press F2 in the test items.
Follow the instructions in the message window.
NOTE: Make sure that the DIMM is fully installed into the connector. A loose connection can cause an error.

Power System Check

To verify the symptom of the problem, power on the computer using each of the following power sources:
Remove the battery pack.
Connect the power adapter and check that power is supplied.
Disconnect the power adapter and install the charged battery pack; then check that power is supplied by
the battery pack.
If you suspect a power problem, see the appropriate power supply check in the following list:
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
If the voltage is not correct, replace the power adapter.
If the voltage is within the range, do the following:
NOTE: An audible noise from the power adapter does not always indicate a defect.
If the power-on indicator does not light up, check the power cord of the power adapter for correct
continuity and installation.
If the operational charge does not work, see "Check the Battery Pack" on page 82.
Chapter 4
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"Check the Power Adapter" on page 81
"Check the Battery Pack" on page 82
Replace the System board.
If the problem is not corrected, see "Undetermined Problems" on page 92.
If the voltage is not correct, go to the next step.
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Pin 1: +19 to +20.5V
Pin 2: 0V, Ground



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