[TenTec] Centurion 422 Trouble Shooting

[N4BE_Jim@yahoo.com]

I had a failure of a couple of ICs in my Centurion a few years ago.  I could only guess that it was some kind of power line transient.  Replaced them and that fixed it.  But we live in a lightning prone area, so I also added a 220V surge protector into the AC line.  You can find these on line for around $65.  They're worth it.  I also added a 6V zener diode on the 5V supply line driving the ICs to clamp any voltage spikes.  No problems since then.  

Jim N4BE

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