Quote:
Originally Posted by cmjones01
...mechanism that would result in black scorch marks near an electrolytic... ...convected heat from the two resistors...
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I forgotten how many psu's in various items of equipment I've seen overheat, usually due to poor ventilation, causing scorch marks on the pcb and slowly 'cook' its electrolytics as a result, hence the recommendation to replace if they in anyway look 'tired'.
It was never suggested they were the cause of the reported fault, simply a prudent first step to replace them under the circumstances.
Regards