Hello guys, I'm new here and want to ask your opinions on the matter. my mobile x-ray is not shooting for exposure after pre-exposure button. I have tried checking if the rotors are rotating and it is okay, I replaced the switch cables and checked on the capacitor discharge board which was busted.

the previous errors I encountered was "Rapid Discharge Fault", "Charger Fault", and "AEC Back-up mAs error". Rapid discharge fault was already solved by replace a 500mA fuse. For the Charger Fault, I checked the fuses if there are any busted all is okay. For the AEC back-up mAs error, Idk what it is.

Now there are no errors whenever I on the machine but can't shoot for exposure, any thoughts guys? and ideas where to look would be very appreciated. Please help T_T

Link for the video

https://drive.google.com/file/d/18iTRuTZvfc_FFKsEBfY1mE42VRsAzJBr/view?usp=sharing