If all 8 lights are lit steadily, then chances are that the hard drive is good. Are you able to call into the voice mail by dialing 440? If you do have a failed drive, yes I can connect you with someone in Silver Spring who can sell you a flash-based replacement that comes pre-loaded with the software. You will need to get the programming software and have a good command of the programming for this system though. You may want to send the unit to him and have him fix it for you so that he might be able to recover the existing programming.

A standard terminal program on a laptop, along with a null-modem cable will allow you to view the hard drive's start up status. You can just watch the lights on the cabinet for that though. If there's flickering/flashing during the startup, then it's safe to assume that the drive is working.

The gray-colored cabinet is the switching equipment for the phones. The blue unit is strictly the voice mail and auto attendant. There is a black twist-off fuse holder on the bottom of the phone system near where the power cord connects. That's where the spare fuse would be used.

Ed Vaughn, MBSWWYPBX