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Replacing a Display Module
Prerequisites
- A display module needs to be replaced.
- A spare display module of the same model (or BOM number) as the faulty display module is available.
Procedure
- On the home screen of the display module, tap Shutdown and turn off the unit switch in the PDF.
Exercise caution because the unit is still energized after it is shut down on the screen of the display module.
- Replace the display module.
- Do not frequently or quickly disconnect or connect the DP cable of the display module. Do not forcibly pull the DP cable.
- You are advised to power off the main control board (or main control module) and then replace the display module.
- Use a Phillips insulated torque screwdriver to remove the four screws and gaskets that secure the display module, and pull out the display module.
- When pushing the display module leftwards or rightwards, pay attention to the buckles on the panel to prevent damage to the display module.
- The gasket is used to adjust the distance between the display module and the door panel.
- The gasket dimensions are 25 mm (L) x 12 mm (W) x 2 mm (H) and the center aperture is 6 mm.
- Connect the control signal cable to the display module
- If the main control board is not powered off, after the DP cable is inserted into the display module, the main control board detects and initializes the display module. This process takes 10s to 30s. Wait for 5s to 10s. The indicator on the panel turns on, but the screen does not turn on. Wait for another 5s to 20s until the screen is restored to the state before the replacement.
- If the main control board is powered off, power on the main control board after the DP cable is connected to the display module. After the main control board is powered on, the startup logo and self-check progress bar are displayed on the display module. The home screen is displayed. The whole restoration takes about 60s to 90s.
