There have not been any reports of BLU not transmitting, so I expect
there is a hardware problem.

You could put your voltmeter between pin 2 of the serial port and
ground (eg. the chassis) and see if the voltage fluctuates when you
type in the Terminal Test. You may need to set your meter to mV AC to
see this, or it may be visible on the 20V DC range. Setting the SCC
to the slowest speed possible may help make the voltage change
visible. (eg. 9600 baud in the current version of BLU).

Yes, BLU will back up ProFiles attached to a parallel port card.

The I/O board ROM and drive swap are all that is required to switch
between 400k and 800k.

The hardware to support LocalTalk is original to every I/O board, so
no modifications were required.


>Is there any good reason why BLU should fail to transmit data from
>Port B of a 2/10, even while data reception is fine (or so the
>terminal test screen would indicate)?

>a 400K drive was swapped back in place of the 800k drive,
>along with the corresponding I/O board ROM. I don't know if that's
>relevant, but I suppose there's a chance that the backwards
>reversion to a Lisa was not complete, and modifications to the
>serial port intended to support e.g. LocalTalk are still in place.

>will BLU back up ProFiles attached to a parallel port card?