70
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 84.
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 71.
Pin 1: +19 to +20.5V
Pin 2: 0V, Ground
Summary of Contents for 4200 4091 - TravelMate - Core Duo 1.66 GHz
Page 6: ...VI ...
Page 46: ...40 Chapter 1 ...
Page 60: ...50 Chapter 2 ...
Page 65: ...Chapter 3 55 Removing the Battery Pack 1 Slide the battery latch then remove the battery ...
Page 76: ...66 Chapter 3 ...
Page 100: ...90 Chapter 5 ...
Page 102: ...92 Chapter 6 Exploded Diagram ...
Page 110: ...100 Chapter 6 ...