This is an replacement power switch module for the FrSky Taranis X9D transmitter. This part has the integrated NiMH 2000mAh charge circuit.
Operation Instructions: Remove the screws from the back of the Taranis, unplug the white ribbon cables from the back of the LCD/switch board at the lower half and open from the bottom so the back of the case swings over the antenna. Four screws hold the board onto the fascia, 3 sets of plugs need to be removed.The two smaller plugs are locking types so please do not pull them out by the wires. You will need to use a small flat blade screwdriver to release them from the sockets, open up the split side of the socket and remove the plug.