US-1800 Interface: Blinking Lights

[Tascam6705]

I just purchased a used Tascam US-1800 Audio Interface. When I plug it in, the green (power) and red (input/gain) lights are all blinking. This occurs without being connected to my Macbook Pro.

Any idea what might be happening? How to fix?

Thanks.

 

[Enochmagazine]

Did you ever find a solution to this

 

[-mjk-]

He hasn't been back since posting that.