Residual light curves and amplitude spectra of the LC_SAP (top), LC_PDC (middle) and LC_Pápics (bottom) light curves of KIC 7760680, after the nine highest-amplitude frequencies have been removed during iterative pre-whitening. The full four-year light curves are shown but only a small frequency region containing the ℓ = 1 period spacing pattern is shown in the amplitude spectra for visibility. The nine frequencies extracted from each light curve (shown as dashed vertical lines) are given in Table 3. We note the difference in ordinate-axis scale.