The power supply of a Microsoft Xbox 360, also know as the “power brick,” is tasked with the job of providing constant and dependable electricity to the game console. A sudden surge in the electricity from the wall outlet can cause a protective fuse in the power brick to burn out, effectively shutting down the power brick. You can open an Xbox 360 power brick to determine if a fuse has been blown. All you need are a few tools.
Unplug the power brick from the wall socket. Unplug the power cord from the connector on the power brick.
Place a towel on a table. Place the power brick upside down on the towel.
Insert the utility knife beneath the rubber stoppers that are at each corner on the bottom of the power supply. Lift the rubber stoppers up and off of the bottom of the power supply using the tip of the utility knife.
Remove the four screws that are now revealed from underneath the rubber stoppers with the Phillips screwdriver.
Insert the flat-edged screwdriver into the seam between the bottom cover and the top cover at the left corner of the power brick. Wiggle the tip of the flat-edged screwdriver up to create a gap between the two covers. Continue wiggling the flat-edged screwdriver to increase the gap.
Grab the bottom cover at the gap with your right hand while grabbing the side of the power brick with the left hand (reverse this for “lefties”). Pull up with both hands.
Lift the bottom cover off of the top cover of the power brick with your fingers. Place the bottom cover aside.
Heat up the soldering iron. Apply the tip of the soldering iron to one side of the metal plate inside of the front cover for about 30 seconds. Insert the tip of the flat-edged screwdriver beneath the metal plate to dislodge it from the circuit board. Repeat this procedure on the other side of the metal plate.
Lift up the metal plate and put it aside. The inside of the power brick can now be inspected.
Residual electricity inside of the power brick can be avoided by wearing insulated gloves and letting the power brick remain unplugged for 2 or 3 days before opening it.
The warranty on the Xbox 360 power brick is voided once you have opened it yourself.