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64
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 main board.
T
If the problem is not corrected, see “Undetermined Problems” on page 73.
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 DC-IN 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 Power Adapter” on page 64.
Pin 1: 19V
Pin 2: 0V, Ground
Summary of Contents for TravelMate 290 Series
Page 6: ...VI ...
Page 44: ...36 Chapter 2 ...
Page 50: ...42 Chapter 2 ...
Page 55: ...Chapter 3 47 Removing the Battery Pack 1 Slide the battery latch 2 Then remove the battery ...
Page 58: ...50 Chapter 3 ...
Page 68: ...60 Chapter 3 ...
Page 82: ...74 Chapter 4 ...
Page 86: ...78 Chapter 5 ...
Page 88: ...80 Chapter 6 Exploded Diagram THE SYSTEM ...
Page 89: ...Chapter 6 81 LOGIC UPPER ASSY ...
Page 90: ...82 Chapter 6 LCD 14 1 ...
Page 91: ...Chapter 6 83 LCD 15 ...
Page 92: ...84 Chapter 6 OPTICAL DISC DRIVE MODULE AND COMBO DRIVE MODULE HDD ASSY ...
Page 102: ...94 Chapter 6 ...
Page 104: ...Appendix A 96 ...
Page 112: ...104 Appendix B ...
Page 114: ...106 Appendix C ...