There are actually several ways in which LeCroy could have protected the input against moderate overvoltage and ESD, such that repairs could be made without rep

There are actually several ways in which LeCroy could have protected the input against moderate overvoltage and ESD, such that repairs could be made without replacing the input hybrid. If nothing else, the guy could buy another half-dead scope on eBay for a couple hundred bucks, fix his bad channel, and have a near-complete parts donor left over for future repairs. If he's the sort who's afraid of replacing the battery in his iPhone, he has no business monkeying with oscilloscopes and such anyway.