Signal Interference Troubleshooting

During troubleshooting, the first step is to carefully inspect whether the outer shielding of the harness is intact, as any damage may become a pathway for external electromagnetic interference. Next, it is essential to verify that the shielding ground terminal is securely connected and that the contact surfaces are clean, ensuring a reliable low-impedance loop with the equipment grounding point.

With regard to the signal terminals themselves, slight oxidation or corrosion may not necessarily result in an open circuit, but it can degrade high-frequency signal transmission quality and increase susceptibility to interference. Engineering practice shows that repairing damaged shielding, thoroughly cleaning, and firmly tightening grounding terminals can effectively resolve most signal interference issues introduced by external coupling.