I would think the would have better input protection but then the scope I got is umpteenth handmedown and in order to get it to work again had to replace a set of resistors from the input BNC on both X and Y.
So if you lost your signals - it simply may mean a range switch for your input level may be ok, it's the "multiplier" resistor that the range goes or "calibrates" to - is burnt out.
IF you still have other ranges you can see, use and Calibrate on - you still have a scope. Relax, you just need to replace the resistor "shunt" used for that range...
These things are pretty tough - delicate - but tough.
