VU LED TV POWER SUPPLY BOARD MODEL NUMBER 49SU131 The power supply board shown in the image is compatible with the VU 49SU131 TV model. Part Numbers: The board has several part numbers printed on it, including 168P-L4R038-WZ and 188P-L4R036-W3. Compatibility: This specific board is listed by multiple retailers as a replacement part for the VU 49SU131 model. Function: This type of board is an SMPS (Switched-Mode Power Supply) and is used to provide power to the television's components