1993 Acura Legend Speedometro

Electrical problem
1993 Acura Legend 6 cyl Four Wheel Drive Automatic 214.53 miles

Yesterday, the D (for Drive) started blinking and the speedometer did not move. I kept driving for 30 minutes and it did not record how many miles I drove.
The trip meter, odometer and speedometer are not working. This problem just started yesterday, and I have not have any accidents with the car.

I took it to my mechanic but he has not idea what to do. Any help would be really appreciated.
I do not have a lot of money now, as I am not working, been looking for quite sometime now. I would appreciate any advice where to take or what to do.