The 40-RT51F1-MAA2HG Main Circuit Board is a unit designed for TCL televisions manufactured in 2021. This main board is specifically compatible with TCL-branded TVs and is made in the United States. As a key component in the TV, this circuit board controls various functions and connects to other parts of the television to ensure smooth operation. It is an essential part for maintaining the functionality and performance of your TCL TV.
Compatible TLC TV Models
Confirmed Compatible TCL Models
Based on parts databases and manufacturer cross-references, this board is found in the following models:
TCL 32S21 (32" Class 3-Series HD LED Android TV)
TCL 32S330 (32" Class 3-Series HD LED Android TV)
TCL 40S330 (40" Class 3-Series FHD LED Android TV)
TCL 40S334 (40" Class 3-Series FHD LED Android TV)
Technical Cross-References
When searching for a replacement, you may see this board associated with these specific internal part numbers or revisions:
Critical Compatibility Note
Even if the board number 40-RT51F1-MAA2HG matches exactly, you must verify the sticker on the back of your original board.
Manufacturers often use the same "blank" circuit board for different screen sizes or panel types. If the firmware on the board is configured for a 40-inch screen and you install it in a 32-inch TV, you may end up with an upside-down image, solarized colors, or a complete lack of video.
Pro Tip: Always match the MFR Part Number (usually found on a small white barcode sticker) rather than just the number printed directly on the green fiberglass of the board.