Hi, New to using an oscilloscope. I'm trying to use a 2C72 to measure the AC V Sine wave from an audio amplifier. Using a DMM I know the voltage is ~37V AC. On the Scope, the settings are for Chan 1 shows 50V but the sine wave still goes outside of the range, meaning the top and botom of the sine wave are not visible. How do I "Zoom out" so that I can see the whole sine wave? Many thanks