1) The AC adapter should ALWAYS be plugged into the laptop FIRST, then plugged into AC power. If not, this could create a voltage spike.
2) Let's look at the DC Power Jack, for the Compaq Presario M2000 series of Notebook PC's,
http://www.notebookparts.com/products/description.php?II=9741The DC Power Jack is mounted to a removable circuit board.
Enlarging the view of the jack, shows us there is an Inductor.
The small 'can' standing up on the power board. This chipset could have gone south. (Bad)
How to know? Replace it, or dig out your dual trace oscilloscope. See if the Inductor works.
Could also just be cracked solder joints, of the DC Power Jack, TO that small circuit board. Solution would be to resolder it/them.
[ I WOULD however, search for a BETTER price, than listed in the link above, IF available ]
DC Power Jack is in good shape, soldered tight to the motherboard, and ruled out as the problem?
(Since you know the AC adapter is good)
Then the problem would be the Inductor on that power board, or power correcting chipset.
What one is it? Dunno.
DO KNOW is has J leads on the bottom.
CAN give examples, and perhaps you can identify using them.
1)
https://docs.google.com/viewer?a=v&q=cache:oER5NNz8cwcJ:www.fairchildsemi.com/ds/FD/FDS6675BZ.pdf+Fairchild+FDS6675BZ&hl=en&pid=bl&srcid=ADGEEShOhWPjm_M-ROHme4iEMrztCTOd-28jNiy1hVLQQh_VOyv8zcXEVDB_iTQA6MuZO88UmRkDgjyW9j4CP2aIJ-4DS-h6JNM3lvxldeApQeecmz_DADCw1s7tmNLxfPknqX14SZP6&sig=AHIEtbS_rYUAeo_8rB9YHkW05ZjLqeH4Jg
2)
http://www.utsource.net/ic-datasheet/KB926QFB1-1829416.htmlService Manual, (Free), for Compaq Presario M2000 series of Notebook PC's,
(Remember, follow Anti-Static Precautions. USE an ESD wrist strap, and connect it's alligator clip to a good ground source),
http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-compaqhpDrop down to the line that begins with - Compaq Presario 1100.
(1100 in blue)
Scroll over, click on M2000. (In blue)
(Ignore if you are aware of the following;
PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on the file name { M2000 }, it may take up to 30 seconds, before the first page comes up )
Compaq Presario M2000 series of Notebook PC's, disassembly guide,
http://www.insidemylaptop.com/take-apart-compaq-presario-m2000-notebook/Regards,
joecoolvette
i have a new charger and nothing happend, without a batery the laptop didn't turn on, even if is conected to the ac adaptor. the conector can't crack, because have a cable, and is not solder to the motherboard directly.
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