Mercedes dash W203 not working

[McDowell]

Hello mates,

I have the following dash not working at all, it has some consumption but that´s all.

Any ideas, apart from display failure and back light I haven´t had something like this :s

648400648401

Thanks in advance.

Regards

Sergio

[okm]

connect the power supply and StarDiag (CAN) in the dash test mode