TDS3000 Series Error Codes do not appear to be the op or service manual. I have one TDS3052 that every so often after being off for a while, produces an error code 14 when booting up. It is fine after that and the error doesn't seem to reproduce.
I am leaning towards a floppy drive error, maybe RTC Error (I have one scope, not sure which one, without the RTC Chip upgrade). Diags do not repeat error. I only see the error on a power-up and there are many instances of ERROR 14 in the error log. This does not seem to affect the operation of the scope.
Dave