Alpengeist's TV (and other stuff) Repair Blog: Panasonic TNPA5330 SN board 7 or 6 blinks - detailed fault analysis and repair guide (TX-P42GT30, VT30, ST30)
Sprzedam] Płyty do TV Panasonic TX-P42U30E - elektroda.pl
User manual Panasonic TX-P50U30E (English - 76 pages)