Remote not connecting

If you still have the original remote for the DMR-E80H, you can switch it back to operate with "1 CHK REMOTE" codes by holding down the "Enter" button on the remote and then press the "1" key.

If you don't still have the original remote, you can try the same steps on your universal remote (assuming it also has an "enter" key that worked with your recorder) and it could work.