What is the problem if the wire from the transformer connected to the pcb board?

If the wire from the transformer connected to the PCB board is damaged or improperly connected, it can lead to several issues, including insufficient power supply to the board, resulting in malfunction or failure of the circuit. This can also cause voltage irregularities, potentially damaging sensitive components on the PCB. Additionally, poor connections may lead to increased resistance, generating heat and posing a risk of fire. Overall, ensuring a secure and intact connection is crucial for the proper functioning of the electronic device.