I have managed to acquire from Pioneer a spreadsheet detailing the exact timings for the Pioneer 503/504 and possibly 505 panels. It could prove beneficial for those with a scaler or HPTC where you can and want to dial in the exact and correct timings for your panel For each of the supported signals/resolutions it provides details for the following: - Dot Clock (MHz) - H-Freq. (KHz) - H-Period (dot) - H-Sync (dot) - H-Back Porch (dot) - H-Disp (dot) - H-Sync Polarity - V-Sync Polarity - V-Freq. (Hz) - V-Period (line) - V-Sync (line) - V-Back Porch (line) - V-Disp (line) I hope you find it useful. Sharing the wealth RAM.