I have been working on bringing up an Apple 1. At this point, the system now will power on, display video and echo input from the keyboard.
The last time that I powered the system on, I heard a crackling sound and smelled a burning odor from one of the transformers after roughly a minute of operation. I immediately powered down the system, let it cool and then tried powering it up again with the same result. The transformers are the original pair of Triads that the system came with.
Has anyone else experienced this problem or have any suggestions about what might be wrong?
I've attached a photo of the power connector to the board. Can anyone take a look at this and confirm if the wire positions look correct on the plug?