Electronic Alarms and Home Security Devices - Ademco 4110DL, Ademco 6128
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adidasprof
03-11-08, 05:27 PM
I have an alarm system in my house that I never activated. The previous owner did have it hooked up and it did work. Recently I had lightning strike my underground dog fence. I don't know if this had anything to do with it, but the power to my keypad is no longer working. It seems that I do have some power going through the wires because I have tested with an OHM meter. Do you think that just replacing the keypad will fix the problem? I'm looking at selling my house and in the mean time would like to get the alarm working. Any help would be appreciated. Thanks.
adidasprof
03-12-08, 07:03 PM
I've retested the voltage on my system. I'm not getting any power to the keypad. I have tested the voltage on the mother board. It seems that I have about 19 volts between connectors 1&2 which is connected directly to the plug into the wall. However, I don't have any power between 4&5 which are the wires that run to my keypad. I hooked up 1&2 to my keypad and it did power up, so I know it's not the keypad. Any ideas on what could be causing the lack of power between 4&5? I do have power between 1&4 and 1&5, but nothing on 4&5. I'm assuming there should be some sort of voltage between the two wires going to my keypad. Any help on this would be great.
Thanks.
Thanks.
adidasprof
03-12-08, 07:24 PM
I forgot to add that this system was installed in 1996 and is all original equipment. I don't know if the battery life would have anything to do with this or not, but just though I might throw it out there just in case someone might think it's important.
MrRonFL
03-17-08, 09:32 AM
Ok, you may have made a really bad mistake. You connected the 16-18 VAC output of the wall pack to the keypad wiring which expects 12 volts _DC_.
For that brief span of time, probably no real damage, but the potential exists.
If the two fuses at the top of the main board are good, and you have AC power coming in from the transformer, then the lightning strike probably damage the rectifier circuit on the main board. There is no field repair for this unless you feel competent to track down the compatible components and do PC board soldering.
QED the system is done, start over. Your keypad is compatible with current generation Ademco systems, but is not the right one for programming.
For that brief span of time, probably no real damage, but the potential exists.
If the two fuses at the top of the main board are good, and you have AC power coming in from the transformer, then the lightning strike probably damage the rectifier circuit on the main board. There is no field repair for this unless you feel competent to track down the compatible components and do PC board soldering.
QED the system is done, start over. Your keypad is compatible with current generation Ademco systems, but is not the right one for programming.