  The cataclysmic variable MV Lyr was present in the Kepler field yielding a
light curve with the duration of almost 1500 days with 60 second cadence. Such
high quality data of this nova-like system with obvious fast optical
variability show multicomponent power density spectra. Our goal is to study the
light curve from different point of view, and perform a shot profile analysis.
We search for characteristics not discovered with standard power density
spectrum based methods. The shot profile method identifies individual shots in
the light curve, and averages them in order to get all substructures with
typical time scales. We also tested the robustness of our analysis using simple
shot noise model. We obtained mean profiles with multicomponent features. The
shot profile method distinguishes substructures with similar time scales which
appear as a single degenerate feature in power density spectra. Furthermore,
this method yields the identification of another high frequency component in
the power density spectra of Kepler and XMM-Newton data not detected so far.
Moreover, we found side-lobes accompanied with the central spike, making the
profile very similar to another Kepler data of blazar W2R 1926+42, and Ginga
data of Cyg X-1. All three objects show similar time scale ratios of the rising
vs. declining part of the central spikes, while the two binaries have also
similar rising profiles of the shots described by a power-law function. The
similarity of both binary shot profiles suggests that the shots originate from
the same origin, e.g. aperiodic mass accretion in the accretion disc. Moreover,
the similarity with the blazar may imply that the ejection fluctuations in the
blazar jet are connected to accretion fluctuations driving the variability in
binaries. This points out to connection between jet and the accretion disc.
