I will start with an assumption that all parts were swapped for identical replacements.

The first thing I would do is confirm that there are no shorted pins...ie solder crossing over from one pin to the next. Look carefully at every joint you did under magnification. Then use a multimeter to confirm that nothing is connected to something else that should. This includes all the header pins, caps, diodes, transistors etc.

That’s the first point for me.

Dave

Bob,

When you checked for continuity did you stick the probe into the connector on each side...would be good to be certain that the red/white wire is providing continuity between the 2 pins...

You might also try pulling the plug out slightly and checking the continuity between the pins across the wire.

Dave