Quasar 50043393B00820 Main Board/Power Supply Unit for SQ5003 Price: $57.99 Quasar 50043393B00820 Main Board/Power Supply Unit for SQ5003 Board Number(s): TP.MS3393.PB801, 50043393B00820 Part number 50043393B00820 is found on a sticker on front of back of board. 0 Out of stock