Compaq Presario 1620 - disassembly instructions?

[Dan Langille]

Does anyone have a manual for taking apart a Compaq Presario 1620?  
The connector for the power supply is very loose.  I can't get it to 
charge without holding the plug to one side.  I want to get at that 
plug where it connects inside the laptop.

I've looked at these without success:

http://www.compaq.com/athome/support/msgs/1600XL/7diskdrive.html
http://h18027.www1.hp.com/athome/support/msgs/1270-1675/510.html

According to this, I need to take out the motherboard.

http://www.delanoscientific.com/cpq1675.html

My next step appears to be to get the upper CPU cover removed, which 
you can sort of see in this picture:

 http://h18027.www1.hp.com/athome/support/msgs/1270-1675/newpage2.htm

But my laptop isn't as shown there.

Clues please.
-- 
Dan Langille : http://www.langille.org/
BSDCan - http://www.bsdcan.org/