HMI and Operator Panel Repair
Touchscreen, display and backlight, keypad, power supply and communication problems are handled as separate scope areas. Whether a backup is possible depends on the condition of the device; it is not claimed that the software will be preserved in every case.
Real laboratory / field photo
Service overview
Touchscreen, display and backlight, keypad, power supply and communication problems are handled as separate scope areas. Whether a backup is possible depends on the condition of the device; it is not claimed that the software will be preserved in every case.
Screen size is not mandatory if unknown. Making sure the relevant area is not cropped out of the photo of the faulty screen makes the assessment easier.
Which symptoms call for an assessment?
- Touchscreen unresponsiveA specific area or the whole screen does not register touch.
- No image / dim displayBacklight or LCD problem.
- KeypadMembrane keys do not respond.
- Power supply / communicationDoes not start up or does not connect to the PLC.
A symptom is not a diagnosis; the cause becomes clear during laboratory diagnosis.
Work performed
| Area | Description |
|---|---|
| Touch layer | Assessment and calibration. |
| LCD and backlight | Display panel and backlight layer. |
| Board | Power supply and control electronics. |
| Communication | Port and connection checks. |
Analysis and testing approach
The final test includes touchscreen calibration and appropriate function checks. The question “Just the glass, or the whole panel?” requires diagnosis; no definitive answer is given at the request stage.
Quotation, approval and delivery process
Registration
We record the device details and symptoms and send you a reference number.
Analysis
The fault is diagnosed in the laboratory, so it is clear what has failed.
Quotation and approval
Scope and price are confirmed in writing; nothing is done without your approval.
Repair
The repair is carried out within the approved scope; you are informed of any deviation.
Testing and delivery
The device is tested under suitable conditions and returned with a short technical summary.
Preparing for shipment
The model, type of problem, a photo of the screen and, if possible, alarm information are sufficient.
Frequently asked
This becomes clear after diagnosis; the panel is assessed as a whole.
Whether a backup is possible depends on the condition of the device; take a backup beforehand if possible.