What are the grey lines on the back of a LCD power supply board?
I was changing out some bad capacitors on my 40 inch Samsung LCD TV, and I accidentally dropped some solder on the back of the power supply board. On the inverse side of the board is a big long silver block. I tried using soldering iron and some solder wick to clean it up, but it didn't work.
What are these gray lines, and did I kill the power supply board?
Questa è una buona domanda?