Compaq Presario M2200 Power Connector Repair

December 2006 Mark Antonucci
This page documents how I fixed a Compaq Presario M2200 that had a bad power connector.
If you try to fix your own, do it at your own risk. Improper repair can lead to a possible fire due to the high currents in the power connector area.

 

Click on any picture to supersize it.

 
 
Model Number

 

  
Bottom cover removed after unscrewing
LOTS of screws! Power connector board
was removed.

 

 Parts Removed to allow the bottom
to be removed.
This is the power connector board.
The best way to do the fix is to just
order one of these from HP.
Part number found on the board is:
DAOCT2pb6D8

 

 This picture shows how the solder joints are
cracked and how one pin shows signs
of overheating due to the crack.
Picture of the repair job made on the
solder joints.
Note the solder mask was scraped off to
allow the solder to bond to a wider surface.		 Another picture of the repair.
I fabricated an insulator to go under the
power connector board. The purpose of
the insulator is to prevent the new solder
joints from making contact with the metal
under the board. Now that the height of
the solder joints are higher than the original
the insulator gives the needed protection.		 Insulator installed. Note the holes are big
enough to allow the plated through holes
of the PCB to make contact.
 
My diagram showing the clearance.

 

  
Fan Work:  
While I had the machine apart, I inspected the fan.  
The fan was disassembled exposing
the dust collection!

 

 Note the dust in the radiator.

 
Another picture.

 

 Dust bunnies removed!
A clean fan!

 

 A clean radiator!

The computer was reassembled and everything worked!