My church bought a building that has a Vodavi IN1400-00 & the 33 button sets. It also has a daughter board that has a Tellabs ringing generator attached to it. The only documentation is on the Infinite VM. No vendor information. It was working but has been powered-down for almost 2 years. I fired it up and the green LEDs are on and the heartbeat is pulsing, but the sets are dead. (No display, no signs of activity)

Most of the station punchings on the 66 block have no voltage. Some of the stations have 30 volts that drops to 2 volts when at set is punched down.

The manual that I downloaded says to connect the nicad battery and turn the power switch on, but I can find neither of these. I suspect that system is slightly different from the manual description. I have taken a set and connected it directly to the 66 block with the same results.

Any help would be greatly appreciated.