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RE: Problem with Rotel 855 after op amp swap. Help please!

Thanks.

I opened up the machine again and look at the corner. Can not tell if it is the ground point. But will do as your advice to put a metal ring and hope to establish ground.

On a separate note, any suggestion on re-solder another point where the pcb trace might be broken off due to excess heat from solder iron. As I mentioned in my reply to the others who offered their recommedation, two of the solder points are no good anymore. I guess my iron was too hot and not only melt the solder, but also the "green" part of the pcb. Not sure how to re-solder on those two point. Please help if you can.

Thank you so much.

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