Quote:
Originally Posted by ben
Looks like there's some glue there attaching those track side resistors which has turned conductive. Remove it all before attempting to power that up again.
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It's clear that it's likely to be "brown circuit glue" now you've said it! Yes that gunk goes crispy and conductive over time (I believe speeded by heat) and needs to be carefully got out of there paying attention to not lift/break any traces underneath it. I'd be surprised if it passed enough current on it's own to cause the symptom here but it is probably at least partly to blame for whatever failure has occurred. (Especially if it's been bridging across that 1% tolerance resistor).