What to do with my alarm system. Is it broken?

I have an NX-4v2 control panel and an interlogix GE Security NX-148E LCD Keypad. Since moving into our home we haven’t known the code and haven’t been using the system, but recently have become interested in getting it up and running. We want to keep local alarms at the windows/doors and potentially add wifi self monitoring but are not interested in paying for monitoring.

When reconnecting it most recently, it powered up but won’t stay on. I’m wondering if the positive wire touched the common wire…. now what is happening is the voltage regulator at the TouchPad and the heat sink are getting very hot very fast when connected. Does my TouchPad need replaced. Does the control panel need replaced. Any advice on testing or a path forward would be greatly appreciated.

submitted by /u/moonpapa1223
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