gk800rb

[Mark Black]

When something looks really bad like that 800RB pic I usually start with removing the PCB and taking it over to the sink. There I spray the nasty area with oven cleaner (yep - it's true) and spend a few minutes with a paintbrush gently scrubbing the stuff around & loosening as much of the soot & charring as possible. Follow with an extended rinse under running water also using a paintbrush to help remove residue. Oh - it helps to wear gloves & have a window open while doing this BTW, and don't leave the cleaner on there more than 10 minutes or so.

I use compressed air to blow off the water & dry things out.

The above procedure reveals the actual damage so a better repair assessment can be made. A nice side effect is the circuit traces will be defluxed & shiny.

[Jazz P Bass]

I gave the board a second look.
It appears to be a 'one sided' PCB.
So all the carbon soot is on the non copper trace side.
It may be easy to clean all of the residue off.
That's a plus.

[David King]

Wow,
What I nice and helpful reception. I'll tear into tonight and start lining up parts from the BOM I found. Photo of cleaned up pcb to follow.

[g1]

Wow,
What I nice and helpful reception.

You sound shocked. Where did you think you were, still on the "other" side?

[David King]

Here's the trace side of the board. Some acetone and a paint brush did a little to clean things up but I'm going to need to see an intact board to know what traces passed into the spirit world.

[MarkusBass]

Not good but also not that bad. Make a drawing of existing (and not existing - vaporized) tracks, remove components, clean the board, dremel out the carbonized board. See how much you need to remove. I was fixing such boards.

Mark