← Back to homepage

HMI Operator Panels Repair

Professional Service for Human Machine Interfaces

HMI panels are the central interface between operator and machine. A defective HMI means production downtime and limited machine operation. EFIXLAB offers comprehensive service for all types of industrial operator panels.

Supported HMI Manufacturers

• Siemens - KTP, TP, MP series, Mobile Panels
• Allen-Bradley - PanelView Plus, PanelView 5000
• Schneider Electric - Magelis GTO/GTU/GXU/STU
• B&R - Power Panel PP, Automation Panel
• Pro-face - GP4000, GP-Pro EX panels
• Mitsubishi - GOT1000, GOT2000
• Omron - NS-Series terminals

Common Defects

Touchscreen Problems

• No touch response - defective digitizer, cable break
• Wrong coordinates - calibration error, mechanical damage
• Partial touch failure - crack in touch matrix
• Ghost touches - grounding issues, EMI
• Repair: Touchscreen digitizer replacement, recalibration

Display Defects

• No image - defective backlight (CCFL/LED), inverter failure
• Dark/dimmed display - aging LED backlight
• Pixel errors, lines - damaged LCD panel
• Repair: Backlight replacement (LED strips, CCFL tubes), inverter, complete LCD module

Communication Problems

• No connection to PLC - defective Ethernet/RS232/RS485 ports
• Sporadic connection drops - loose contacts
• Repair: Ethernet PHY chip replacement, RS485 transceivers, connectors

Repair Services

• Touchscreen digitizer replacement (resistive/capacitive)
• LCD/TFT display module replacement
• Backlight repair - LED/CCFL upgrade available
• Membrane keyboard replacement
• Communication port repair
• Firmware reinstallation
• Battery replacement (NVRAM, RTC)