We repair Allen-Bradley PanelView Plus 400 HMI that was unresponsive and not booting. Testing showed regulator faults, flash IC problems, and capacitor failures. These issues prevented the unit from starting up properly. We repaired the circuits and replaced the defective ICs. The HMI was tested in multiple cycles for reliable performance. After repair, it operated smoothly in industrial systems.
Note: We are not manufacturers, we only repair.