As Todd has noted, the way it is shipped is critical. Here is the shipping bracket for example.
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More often than not, you will receive a defective unit if shipped without this bracket or being loaded with disks.
There are two fuses that operate the unit. One is marked, one is not. One is for memory, one is for running/operating power.
If you remove BOTH fuses it will reset. That is your only chance as I see it...
Good luck.