Hi. The oscilloscope looks to perform well. The first image is correct to see the RF signal. The RF signal looks to be noisy, maybe it needs to correct Focus Offset adjust. But I insist, oscilloscope looks to be OK, RF is noisy, laser pickup is giving a noisy signal. And yes, sometimes is not easy to get RF signall with a probe. Attenuation by 10 is recommendable too for to see RF signal in CD laser pickups.