You are right, but that was not my point:
As one can see here the sketch (and the pinout description see next post) suggests to connect the middle pin to 5V which is misleading and senseless, but a widely spread failure (copy and paste?).
As mentioned - if one welds the resistor on the IR Transmitter board AND connects as suggested this will only nicely heat the board ...
However it looks if if there could be also different layouts of KY-005, the one I know and which I checked with an Ohmmeter has two pads, one solely connected to the middle pin and the other to the GND pin. Some pictures in Webshops look different ... ?!?
However, three wires like Signal, GND and Vcc do not make sense for a board that carries only one diode.