Sorry to hear this!!  I sent my th-74d to United radio in new york.based off this https://www.kenwood.com/usa/Support/National_Service_Centers/

They are the only Kenwood authorized repair centers and I was very happy with the price and turn around time.

On Thu, Apr 27, 2023, 6:17 PM Kevin G Wagner <w2fa.kgw@...> wrote:

My TH-7D has stopped working with the battery connection after a new battery started to catch on fire.
I was able to disconnect it but after this happened I only was able only to get the DC connection to power the HT. The radio works fine with the DC connection. I’m looking for someone who could fix it as I don’t the the skill or tools on such small components. If anyone knows of anyone please let me know.

73,
Kevin
W2FA