After I got my car out of storage for the winter I started it and realized that my tach and speedomiter does not work but the rest of the digital dash does, If any one know's what went wrong help would be great,,,,:hail:

 

Could be that there's a bit of condensation built up in the cluster. I'd remove the cluster & bring it in the house for a couple days. May dry it out enough that it'll work again

 

When I bought my '85 Berlinetta, the IP didn't work. I repair computer equipment for a living, and was able to get hold of the schematics for the boards that make up the IP. Turns out the power supply board was bad, and the schematics that I have only show a block diagram of the PS. Too bad, because it seems that most of the problems with these IP's are in the power supply. I'm not that good at these types of boards, so I just found a replacement at the boneyard. I haven't been able to find anyone who knows how to fix these, either.

Hope you have better luck!

 

you could however get a new and improved one from dakota digital. a little pricey though

 

Is it a direct plug-in for the Berlinetta IP?