Replacing Sega Dreamcast Power Block (Power Supply)

  • Author: wkwong
  • Time estimate: 7 - 15 minutes
  • Difficulty: Moderate

A guide to remove power block from the Sega Dreamcast.

Edit Step 1 Expansion Bay  ¶ 

Image 1/2: '''Flip the console''' over on its back.

Edit Step 1 Expansion Bay  ¶ 

  • Verify that the console is disconnected from the AC outlet before you begin.

  • Flip the console over on its back.

  • Take note of your model number, in case replacement parts are needed.

Edit Step 2  ¶ 

Image 1/3:

Edit Step 2  ¶ 

  • Remove the expansion bay by applying pressure to the small clip on the expansion bay while prying it away from the console.

Edit Step 3 Top Cover  ¶ 

Image 1/1: The fourth screw is hidden under the expansion bay if it has not already been removed.

Edit Step 3 Top Cover  ¶ 

  • Locate and remove all four black 12mm Phillips #02 screws from the underside of the console.

  • The fourth screw is hidden under the expansion bay if it has not already been removed.

Edit Step 4  ¶ 

Image 1/1: '''Flip the console topside up.'''

Edit Step 4  ¶ 

  • Be careful that the internal components do not topple out.

  • Flip the console topside up.

  • Remove the top cover of the chassis by gently lifting the upper portion of the console.

Edit Step 5 Power Block (Power Supply)  ¶ 

Image 1/2: '''Remove the white female pin header''' by clamping the clip and pulling it up gently from the power board.

Edit Step 5 Power Block (Power Supply)  ¶ 

  • Verify that the console is disconnected from the AC outlet before you begin. If you have just powered off the system, give the capacitors a few minutes to discharge before you begin working.

  • Remove the white female pin header by clamping the clip and pulling it up gently from the power board.

Edit Step 6  ¶ 

Image 1/1:

Edit Step 6  ¶ 

  • Remove the two 10mm Philips #02 screws that are fastened to the power block.

Edit Step 7  ¶ 

Image 1/2: '''Remove the power board''' by using both hands to gently lift the power board away from the console.

Edit Step 7  ¶ 

  • Do not bend the male pin header between the mounted head when you remove the power supply from the chassis.

  • Remove the power board by using both hands to gently lift the power board away from the console.

Edit Step 8  ¶ 

Image 1/1:

Edit Step 8  ¶ 

  • Remove the clear plastic film that is tucked between the power supply and the chassis.

Conclusion

To reassemble your device, follow these instructions in reverse order.

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One Comment

All symptoms of dead PSU can be occuring, if by accident flat ribbon cable between motherboard and controller board is disconnected. Check that cable if both ends is firmly plugged.

lauraiss lv - Reply