
128
Chapter 4
Power On Issue
If the system doesn’t power on, perform the following actions one at a time to correct the problem. Do not
replace a non-defective FRUs:
Computer Shutsdown Intermittently
If the system powers off at intervals, perform the following actions one at a time to correct the problem.
1.
Check the power cable is properly connected to the computer and the electrical outlet.
2.
Remove any extension cables between the computer and the outlet.
3.
Remove any surge protectors between the computer and the electrical outlet. Plug the computer directly
into a known good electrical outlet.
4.
Disconnect the power and open the casing to check the Thermal Unit (see “Thermal Unit Failure” on page
138) and fan airways are free of obstructions.
5.
Remove all external and non-essential hardware connected to the computer that are not necessary to
boot the computer to the failure point.
6.
Remove any recently installed software.
7.
If the Issue is still not resolved, see “Online Support Information” on page 223.
Summary of Contents for HM50-MV
Page 6: ...VI ...
Page 10: ...X Table of Contents ...
Page 34: ...24 Chapter 1 ...
Page 56: ...46 Chapter 2 ...
Page 78: ...68 Chapter 3 4 Disconnect the following four cables from the Mainboard A B C D ...
Page 91: ...Chapter 3 81 4 Using both hands lift the Thermal Module clear of the Mainboard ...
Page 93: ...Chapter 3 83 4 Lift the CPU Fan clear of the Mainboard as shown ...
Page 99: ...Chapter 3 89 5 Lift the LCD Panel clear of the module ...
Page 107: ...Chapter 3 97 9 The Antennas and cables appear as shown when correctly installed ...
Page 112: ...102 Chapter 3 2 Replace the four screws and screw caps provided ...
Page 117: ...Chapter 3 107 5 Replace the FFC and press down as indicated to secure it to the Upper Cover ...
Page 128: ...118 Chapter 3 17 Replace the two screws securing the LCD Module to the Lower Cover ...
Page 136: ...126 Chapter 3 ...
Page 164: ...156 Chapter 5 ...
Page 179: ...Chapter 6 171 ...
Page 216: ...Appendix A 208 ...
Page 232: ...224 Appendix C ...
Page 236: ...228 ...