Yes, you can pretty much replace it with any LED.
But, it would be a good idea to locate it’s current limiting resistor close to it.
I would just solder a new red one in. Not the clear type though.
Have you got a multimeter?
Martin
Highly unlikely the board got damaged.
Possibly a wire or connection broke while taking it apart.
Unfortunately, you will need a multimeter or some kind of continuity tester to check.
Martin
That would depend on what audio signals you have as inputs.
Are you using all 4 inputs for different audio devices?
I use an audio mixer with only one main output. But I use one for each laptop output to the mixer.
Martin
I would suggest taking it a part again to re-trace your steps.
Check connectors orientation and that they are seated correctly.
This is obviously no coincidence.
Martin
Hi Kevin, you might want to try a ground loop isolator rather than a power line noise suppressor.
Use it at the audio input.
I have several for a mobile disco and they work great.
Martin
This one here on Amazon has the same amount of pins and a wide choice of units it fits.
Still confused though!.
Does your station have a connector? or are you adding a connector to it and a new heat gun?
Martin
If you give us more information on your unit, we may be able to help you further.
As you have seen, some have more connections than others.
But we're guessing as you have not supplied any info at all.
Martin