I was preparing my HHS-2200 to go back in to service in a new vehicle, and had it hooked to a bench supply for configuring the system. I didn't have any inputs hooked up, and did not have any siren speakers hooked to the system. The only input hooked up was the "Backlight" for the controller. I powered it up and the backlight was on for the controller. Pressing a light button toggled the relay. Someone came along and pressed the "Manual" siren button for a few seconds and I heard an internal high pitched noise winding up like the siren. I put a stop to that in a couple of seconds, but then a within five seconds I noticed the backlight was off and the relays no longer toggled.
All of the fuses test good, and i confirmed that there is 12 VDC to each of the positive wires.
I could see the siren output getting blown when trying to amplify into a short, but I'm not sure why amplifying into an open circuit would blow this unit up. Also, I could see the siren going dead, but why is the whole unit now dead?
All of the fuses test good, and i confirmed that there is 12 VDC to each of the positive wires.
I could see the siren output getting blown when trying to amplify into a short, but I'm not sure why amplifying into an open circuit would blow this unit up. Also, I could see the siren going dead, but why is the whole unit now dead?