Georg blew out the signal generator on his DSO nano portable oscilloscope. He brought it back to life with a new buffer chip, his repair guide might save your nano too: [via]
Spotting the chip on the board is very easy. It’s in an SMD package but fortunately a rather large type. So, although I have no specific SMD equipment I was able to desolder it. I treated all pins with desoldering wick and afterwards slid the blade of a very thin knive under it while heating the pins.
DSO nano signal generator repair – [Link]











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