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Cambridge Audio A3i Power Cord and Transformer Replacement

Missing Prerequisites

Missing Prerequisites

This guide is missing information on how to start the process. Make a prerequisite guide!

  • Author: Colby
  • Time estimate: 1 hour
  • Difficulty: Moderate

In this guide we will replace the power cord and the transformer The transformer is the large, heavy device that converts the relatively high 220V input voltage into a lower voltage for the amplifier.

Step 1 Power Cord and Transformer  ¶ 

Carefully de-solder ends of power cord from circuit board.

Step 1 Power Cord and Transformer  ¶ 

  • Carefully de-solder ends of power cord from circuit board.

  • Keep track of the colors of the cords. The brown cord leads to the L on the circuit board, and this cord will lead to a fuse in the power plug. The blue cord leads to the N on the board.

  • Finally, pull the power cord through the rear panel to completely remove it.

Step 2  ¶ 

To remove the transformer the motherboard must be removed. This is to gain access to the solder on the power cords. -See guide for removing motherboard.

Step 2  ¶ 

  • To remove the transformer the motherboard must be removed. This is to gain access to the solder on the power cords. -See guide for removing motherboard.

  • Remove the 4 nuts holding down the transformer bracket using a 7mm nut driver or socket.