Laptop caps lock flashes then shuts off

I have a Dell Inspiron 9300 I rpl the dc jack in. THe system didn't boot before and when I wiggled the plug in the jack (yeah I know about the sexual inuendo HAHAHA) the led indicator showing power would flash on and off. So I rpl the dc jack, the ac power pack was supposed to be new.

Well now that I have rpl the dc jack the customer tells me that they gave me the bad ac cable, now that I have the new power cable, the Caps Lock light flashes for about 2-3 seconds then the ssytem shuts off. I have re-seated everything twice and still nothing....

Any thoughts? I am worried that the vid chip is fried. Since it is integrated the customer is screwed. Could be the lcd invertor/screen maybe, have to ask the customer some questions about white lines. Read on dell website that this model had a flakey lcd inverter/screen setup. Would get white lines on screen and then the system eventually won't boot.

Any help would be greatly appreciated.

Thanks

 

HAZA got it working.... Thanks to anyone that was in the middle of posting. I found a small cable that was coming half-*** unseated when I was manuvering the top cover into alignment....