Defect Compaq Armada 1540D

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msmax

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Need help with the repair of this notebook.

It has integrated switching power supply which fails now.
Anyone has some detailed info (schematics) or repair tips specially for this notebook?

Thanks for your help.
 

Checked the mainboard and found a blown Q501. Type is NY 7J2.
Switching mode power supply seems not to be the problem. It supplies 18V as it should be.

Any one can tell me some more about this Q500 and help me may be with the datasheet?
 

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