Hello – thank you for responding. The power light to the ST is coming on, however the power light to the drive is not, and the drive does not spin or make any noise. I get no display whatsoever, neither on the Atari Hi-Rez monitor nor on the TV when plugged into the RF modulator. Just a black screen. I had thought maybe the RF modulator was after market because the model is a 1040STF not a STFM, but there is indeed an RF modulator. The power supply to the ST itself does appear to be working, as the ST will power on. Thank you!