J'avais bien compris, merci.
Entre temps j'ai eu des instructions de creality pour faire divers contrôles, notamment :
Use a multimeter to measure if the motherboard screen terminal has 5V output voltage. Confirm whether it is a screen/screen cable problem or a motherboard problem.
Voila ce que j'ai fait et répondu:
I am not sure at what point you are asking me to make this measurement. A picture or documentation would be appreciated.
I have disconnected the cable on the screen side but I don't know which pins to make these measurements between
I have tried 1a, 2b, 3c, 4d, 5e. None of them had any measurable voltage.
Soit je n'ai pas mesuré les bon pins, soit le pb se situe plus en amont.