Fault
Interactive display does not power on
The cause may be in the power supply, main board, control circuits or software. The faulty unit cannot be identified from the external symptom alone.
What to prepare
- The exact equipment model and serial number.
- Indicator status when connected to power and after pressing the power button.
- Whether sound, backlight, a logo or a brief image appears.
- A short video of the display and information about how the fault started.
What is checked during diagnostics
- AC input, fuses, standby supply and power voltages.
- Power-on signals, control circuits and communication between main modules.
- Main board, eMMC and boot sequence.
- Current consumption and short circuits on power rails.
Before sending for repair
Do not repeatedly power on the display after a burning smell, clicking, liquid exposure or protection shutdown. Further attempts may increase the damage.
Contacts
Start a service request
Send the model, a photo of the rating label and a brief description of the symptom.