To give you the right guide, could you clarify if you are looking for:
This request is slightly because "RSAG7.820.6392" refers to a specific motherboard used in several Hisense TV models , and there are different reasons you might be looking for this file. Download File RSAG7.820.6392_Hisense LTDN40K321...
: Technical data files used by repair technicians to "reflash" a bricked motherboard using a hardware programmer. To give you the right guide, could you
: Files used to update the TV's operating system or fix software bugs (usually installed via USB). To give you the right guide
: Documentation showing the circuit diagrams and component layouts for that specific board.