Then, a soft, steady click echoed from the unit. The LED flickered—green. A solid, unwavering green.

Sometimes, components like the SB260, SB160 diodes, or the switching IC are the only things that are broken. These cost pennies. However, if the main transformer or a proprietary IC is dead, you may need a replacement board.

Local electronics repair shops often discard broken power supplies. Offer to repair one of their devices in exchange for a dead board containing the HYS3C210CS (90% of the time, the IC is still functional).