IKON 2005 Austere Board Indicators

Hello,
I have an Ikon 2005 std austere, occasionally the indicators of the board (velocimeter, odometer, gasoline, temperature, battery and everything that should be shown when the key is turned and start) when lighting the car did not serve, but it turned on again and the situation was normalized. Now it is permanent, they no longer work. As data, the lights, directional and intermittent work well. I already check the fuses and everyone are fine. Will it be some relay? Where are these in the car?
thank you.

I think your board is digital because a single current reaches the checcala cable maso and letharms.