I can't get my old Definity G1 to bootup. I am checking everything and wonder if someone kicked this switch on the processor board. It can be AUTO, EMERG XFER, ON. I would think the first or last but it is now in EMERG XFER position. I know biggest prob is "Reading Tape - Failure" message I am getting, but don't know if this switch position could be affecting that. Thanks.