I changed out the battery with a same size 12 volt from auto parts store and the dash died the back lites work but no disply no tach thanks for your time
mike
how does the re programing work on 4740 i can give that a tryThe dash control panel needs to be reprogrammed. I have the information for my L4740HST but I don't know if it would work for yours. It is easy to do. Check with your dealer for the procedure or download a manual for your model.
What is it? What year, Make, Model etc..
I don't have the 3830 but if it were mine I would look for a couple things
I am assuming it starts and runs just no dash. (If not check your grounds and battery cables)
Did you check all the fuses maybe one blew from the surge of connecting the new battery
Check all cables to battery was there a smaller 2nd wire? either positive or negative.
Lastly maybe the dash could have a problem caused by the low battery Electronics do not like low voltage.