Hello,

I have a Samsung DM32D display.
When I try to power it on, the red LED blinks 5 times and nothing happens—the unit won’t start.

Here’s what I have tried so far:
  1. Disconnected the cable between the mainboard and the power supply → the backlight turns on.
  2. Disconnected the main T-CON ribbon cable → same issue as before, the LED still blinks 5 times.
  3. Disconnected one of the two T-CON ribbons to the panel (tested each one separately) → same issue, the LED blinks 5 times.

From these tests, I suspect the problem might be on the mainboard. Could anyone...