Partial part number (3959A) can be found stamped in the white rectangle on the board
Additional Board Numbers: LGP47-10LF
Note that the sticker may be obscured behind a plastic heat shield
TV BasePart Number: PN60E530A3FXZA StandLocation: ST6ENotice: May have scuffs or scratches
Part Number: A-2066-952-B
Vizio 3642-1722-0150 Main Board for M420SL (0171-2272-4309) input Partial part number (3959A) can180 Day Warranty! Part Type: Main Unit, Main Board, VGA Input, HDMI Input, A V Board, Signal Board, Tuner Board, USB Input, Digital Audio Output, S Video InputPart Number: 3642 1722 0150Location: 02N5Additional Board Numbers: 0171 2272 4309Notice: Recommended to order by part number whenever possible. Often times there are TV models that use more than one set of parts and or panels. Compatible TV Models: VizioM420SL LAQKMAANPlease contact us if you