I just got a new logic board installed on my Macbook Air (running OS X 10.9.4). Before the repair, I used a time capsule for backup (which has plenty of storage left). When my newly repaired MBA came home from the shop and tried to complete a time machine backup to the capsule, a message popped up that asked if I wanted to restore my previous backups. I selected that option, but it did not complete the backup and now I get an error message that says, "time machine cannot complete the backup because the disk is read only". I performed some simple troubleshooting (i.e., turned time machine off and unplugged the capsule), but no luck.
I read on the Apple support page that I should try mounting the time capsule to my desktop and ejecting it from disk utility. If "mount" means connect, I cannot do that because it usually connects wirelessly and is not showing up in disk utility. (I don't know if it is relevant, but I use the time capsule for wireless internet, and it works just fine.)
Can anyone explain to me (in the simplest, non-jargony terms possible) how I might troubleshoot this problem? I appreciate your help!