76
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 90.
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 77.
Pin 1: +19 to +20.5V
Pin 2: 0V, Ground
Summary of Contents for 2450
Page 6: ...VI ...
Page 48: ...42 Chapter 1 ...
Page 62: ...56 Chapter 2 ...
Page 67: ...Chapter 3 61 Removing the Battery Pack 1 Slide the battery latch then remove the battery ...
Page 78: ...72 Chapter 3 ...
Page 102: ...96 Chapter 5 ...
Page 104: ...98 Chapter 6 Exploded Diagram ...
Page 114: ...108 Chapter 6 ...