LOL Yes it is an older hummingbird 200s? i think? transducer is mounted on the back Im a newbie so not sure what a "chime" is ? but yeah this is the first year we have a problem with it, It's a brand new battery we just put in at the beginning of the season, and the voltage seems ok? not quite sure maybe i should go get a Walmart "Frenchman's Special" and try that LOL Take CAre God Bless and Tight Lines LOL Donkey Dave From up North "The Backwards Frenchman" thanks for tips guys!!!!!!