Spoke with Steve (www.dmimarine.com) this morning, he said he can rebuild my DataMarine S-200DL $250 or a bit more. Three week turn-around, I am good-to-go. I WILL follow up. Thanks again for being there guys.Contact Steve at DMI marine 774-213-9744 he is awesome he services all the old vintage data marine units and he will be able to tell you if and how to do it. He has been keeping my units run for the past 15 years. Great guy